EP1570167B1 - Cast part for an internal combustion engine - Google Patents

Cast part for an internal combustion engine Download PDF

Info

Publication number
EP1570167B1
EP1570167B1 EP03767447A EP03767447A EP1570167B1 EP 1570167 B1 EP1570167 B1 EP 1570167B1 EP 03767447 A EP03767447 A EP 03767447A EP 03767447 A EP03767447 A EP 03767447A EP 1570167 B1 EP1570167 B1 EP 1570167B1
Authority
EP
European Patent Office
Prior art keywords
cast
fuel
oil
cylinder crankcase
supply line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03767447A
Other languages
German (de)
French (fr)
Other versions
EP1570167A1 (en
Inventor
Horst Henkel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fritz Winter Eisengiesserei GmbH and Co KG
Original Assignee
Fritz Winter Eisengiesserei GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10304971A external-priority patent/DE10304971C5/en
Application filed by Fritz Winter Eisengiesserei GmbH and Co KG filed Critical Fritz Winter Eisengiesserei GmbH and Co KG
Priority to EP09001655.1A priority Critical patent/EP2063094B1/en
Publication of EP1570167A1 publication Critical patent/EP1570167A1/en
Application granted granted Critical
Publication of EP1570167B1 publication Critical patent/EP1570167B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0053—Crankshaft bearings fitted in the crankcase
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0072—Casting in, on, or around objects which form part of the product for making objects with integrated channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits
    • F01M2011/026—Arrangements of lubricant conduits for lubricating crankshaft bearings

Definitions

  • the invention relates to a cast component for an internal combustion engine, wherein the component is a cylinder crankcase having at least one guide channel, which is formed in the form of a tube and molded during casting of the component and which forwards a fluid medium to a demand site wherein the fluid medium is oil.
  • Internal combustion engines in the form of internal combustion engines, are an integral part of vehicles (for example cars and commercial vehicles, ships, etc.) and are also used as stationary engines.
  • internal combustion engines include numerous molded components having at least one guide channel (also called a supply line) which relays a fluid medium (e.g., oil, water, gas, or other liquid or gaseous media) to a demand site in the engine or adjacent areas.
  • a fluid medium e.g., oil, water, gas, or other liquid or gaseous media
  • Some of the guide channels can also be used to cool a component itself. Where needed are the locations where the particular medium is needed, e.g. bearings to be lubricated, areas to be cooled, etc.
  • a guide channel or a plurality of guide channels comes / come especially in a cylinder crankcase or adjacent thereto add-on parts.
  • Guide channels are introduced in a known manner by mechanical processing on machine tools or transfer lines, ie drilled.
  • central main guide channels and secondary guide channels which form branches to the individual points of need, are bored into the component in a number of complex, highly precise steps. Subsequently, numerous, unnecessary accesses must be closed permanently and safely.
  • Very long, straight-line guide channels, such as those of the main oil channel in a cylinder crankcase are already isolated today poured by pouring a pipe or by saving by a corresponding casting core.
  • the DE 196 52 049 C1 discloses a two-piece molded crankcase into which pipes / pipe systems are molded for oil transfer to the cylinder covers and camshaft bearings.
  • the pipes are supplied with oil via connecting bores from the crankshaft bearings.
  • the crankshaft bearings are powered by a trapped oil supply line.
  • the invention is based on the object in a component - and a cylinder crankcase - of the above type to reduce the manufacturing and cost and to propose a method for the production of a component according to the invention.
  • the cast component is a cylindrical eccentric housing.
  • a cylinder crankcase has numerous guide channels, in particular for oil and water, so that by pouring a guide channel or more guide channels, which is or in each case designed as a tube, a considerable saving in manufacturing effort is achieved.
  • a guide channel cast in as a pipe is not the main oil channel, since this belongs to the state of the art. Rather, the aim of the invention is to pour in another guide channel or several other guide channels for oil or other media to be required as a pipe (s).
  • essential guide channels to be required in a cylinder crankcase which can be advantageously realized in the form of cast-in tubes according to the invention, e.g. to call the oil supply lines to crankshaft or camshaft bearings, the supply line for the piston cooling, the pressure oil line to the cylinder head or oil return.
  • At least one guide channel can be cast as a pipe in the cylinder crankcase, which forms a fuel line.
  • the component comprises a plurality of cast-in guide channels to save manufacturing and cost.
  • the guide channels can be introduced in each case as a single connecting tube for the medium guide. This means that when pouring several individual, correspondingly shaped tubes are cast as connecting parts with. This provides a high degree of freedom in terms of the course of the guide channels.
  • a combination of guide channels in pipe composite form and individual connecting parts on the same component is possible and advantageous.
  • cylinder crankcase according to the invention according to claim 1 serve several cast in the cylinder crankcase as pipes guide channels to supply bearings located in the cylinder crankcase for lubrication with oil, thus each form an oil supply.
  • a guide channel extends in the region of a bulkhead of the cylinder crankcase.
  • At least one guide channel is cast as a tube, the image an oil supply line for the oil supply of the cylinder head and the cylinder heads.
  • the oil supply is fed directly from the main oil channel with oil.
  • a further advantage of the invention is that a cast-in tube guide channel or, more cast-pipe guide channels provide a maximum of cleanliness on the inner channel wall / offer and the cavity, unlike the prior art free from residues due to mechanical introduction of the channel or free of casting residues (eg core residues) due to a pouring of the channel into the component as a cavity by inserting a core.
  • This aspect is particularly important in a guide channel for bearing lubrication, as in the channel possibly remaining residues with the oil during engine operation in the camp and would lead to the destruction of the bearing.
  • the cylinder crankcase has at least one cast-in as a pipe guide channel, which forms an oil supply line for the supply of the piston cooling or lubrication of the cylinder wall.
  • the oil supply can be suitably designed and arranged such that it extends in the longitudinal extension of the cylinder crankcase and branch off several spray nozzles, the oil directed each injected into a cylinder space below a piston head, thereby cooling the piston crown on the one hand and lubricated on the other the respective cylinder wall becomes.
  • a plurality of oil supply lines can be cast into a cylinder or to a plurality of cylinders, possibly with other progressions.
  • the cylinder crankcase has at least one cast-in as a pipe guide channel, which forms a fuel line for the supply of a fuel pump.
  • the fuel line runs advantageously in the longitudinal extent of the cylinder crankcase in the region of a housing outer wall.
  • several fuel lines are cast as tubes, for example at least one supply line and at least one return line.
  • the at least one cast-in as a duct guide channel is arranged such that it runs partially or completely exposed in parts, i. he can run outside of the component on the outside or inside.
  • the guide channel can be cast in a ring-like manner with casting material of the component in order to ensure a firm bond between the channel and the component.
  • the guide channel can (based on its longitudinal extent) run completely exposed or partially be molded into the component wall. The measure of the partially exposed course offers over the prior art in which the drilled or cast with cores guide channels can extend only in the wall of the component, the advantage that the wall thickness of the component can be significantly reduced and thereby saved on material and weight ,
  • the at least one cast-in guide channel has different cross-sectional shapes in its course.
  • a good adaptation to the respective construction of the component is achieved.
  • narrow contour areas can be overcome.
  • the respective cross-sectional shapes to be realized depend on the particular construction of the component. Different cross-sectional shapes on a tube can be removed prior to pouring e.g. realize by hydroforming of the tube.
  • the component is made of a metallic material or plastic.
  • the at least one cast-guide channel can be made of a metallic material or plastic.
  • metallic materials For example, steel, all cast iron materials, light metals, non-ferrous metals come into question. Which material is to be preferably used in particular also depends, inter alia, on the particular component to be cast.
  • cast-in tubes can be realized as a guide channels in an attachment of a cylinder crankcase - in particular in a cylinder head, a transmission housing, a gear housing, an oil pan or the like.
  • guide channels in the cylinder crankcase or in the / the attachment (s) can be supplied by a common or multiple supply circuits.
  • the einzug manende pipe is installed in the mold (possibly by means of supports) or introduced into the casting core (eg injected into a sand core or in the core production with incorporated) or incorporated into a lost model or directly embedded in the loose mold medium cavity filling, or the tube is mounted at a pipe end in the casting core.
  • the tube may also be incorporated in a plurality of casting cores, which may be mounted as individual cores to form a core block.
  • a cast component according to the invention can be manufactured with different casting methods.
  • the component is cast in a lost-mold casting method, e.g. in a pure core molding process, a core molding i.V.m. Green mold method, core shape i.V.m. Cold resin molding process, etc.
  • the component is cast in a continuous casting process, e.g. Mold casting, die casting, injection molding, etc.
  • the component is cast in the lost foam method.
  • Advantages of the Lost Foam casting process (a form of full-cast casting) are, for example, the lack of core residues on the cast component, the high surface quality, high-quality contour definition and great imaging accuracy, and thus a relatively low reworking effort.
  • the tubes required for this purpose can preferably be introduced as individual connecting tubes. Furthermore, it may be advantageous in some variants to connect a plurality of tubes in each case to a partial tube system and to pour several partial tube systems into the component. Which variant is preferable depends on the specific task.
  • a crankshaft bearing 2 and a camshaft bearing 3 and a main oil passage 4 are shown in cross section. Furthermore, longitudinally cut guide channels 5a, 5b can be seen which run from the main oil channel 4 to the crankshaft bearing 2 or camshaft bearing 3 and provide during engine operation for the lubrication of camshaft and crankshaft bearings.
  • the outgoing from the camshaft bearing 3 guide channel 5c leads to an attachment of the cylinder crankcase 1, in this case to a cylinder head, not shown.
  • the illustrated guide channels 5a, 5b, 5c are subsequently introduced into the cast cylinder crankcase 1, that is drilled. Therefore, only a straight course of the guide channels 5 is possible, and the housing 1 has manufacturing-related access 6 to the outside (to recognize left), which are to be closed later.
  • Fig. 2 is the main oil channel 4 off Fig. 1 cut longitudinally, and there are several of them branching guide channels 5b, which lead to bearings 3 for the camshaft to recognize. Furthermore, recesses 22 are shown in the contour region of the cylinder crankcase 1. Corresponding recesses 22 are also in the Fig. 4 and 6 to recognize.
  • Fig. 3 shows a cast component according to the invention for an internal combustion engine having at least one guide channel 5, which forwards a fluid medium to a demand site. And it is a cylinder crankcase 1. The cutting position corresponds to that of Fig. 1 ,
  • a guide channel 5d which has been formed in the form of a tube and poured in during casting of the cylinder crankcase 1 with.
  • the single connecting tube 7, which is cast in as a guide channel 5d, is bent here in a "handle-like manner".
  • a guide channel 5 d also have a different shape or a different course than shown.
  • a section 7a extends to a crankshaft bearing 2 and another section 7b to a camshaft bearing 3.
  • the bend 8 is located at the point where the main oil channel 4, which in this embodiment is drilled in a conventional manner is subsequently introduced, will run.
  • a plurality of individual connecting tubes 7 are cast as guide channels 5 for the medium guide, in the bulkheads 23.
  • the "handle-like" connecting tubes 7 shown here open at one end in each case in a camshaft bearing 3 and (interrupted through the drilled main oil passage 4) with the other end in a crankshaft bearing 2.
  • crankshaft bearings can be supplied with oil via a tube guide channel or a plurality of tube guide channels, and the camshaft bearings can be supplied by mechanically introduced channels in the conventional way.
  • the main oil passage 4 and the guide channels 5 are formed to the camshaft bearings 3 and crankshaft bearings 2 as cast-in tubes, and this is realized by a branched, cast-pipe system 9.
  • pipes with the appropriate dimensions length, diameter, cross-sectional shape, etc. have been connected before casting to a pipe system 9, which has subsequently been poured in a suitable casting process.
  • the cast-in as tubes guide channels 5 are not completely surrounded by casting material, ie run in the component, must but in parts can also be exposed. Furthermore, the guide channels 5 may also have a curved, adapted to the contour course course.
  • Fig. 7 shows a connecting pipe 7 for a "suitcase handle” guide channel 5d in different views.
  • the to be recognized core supports 10 serve the lateral support during the casting process. However, it is also possible to do without core supports 10, for example, if the ends of the connecting tube 7 are anchored sufficiently firmly in casting cores.
  • Fig. 8 shows an example of a pipe system 9. From a main guide channel 9a branch off a plurality of secondary guide channels 9b, which lead to the individual needs make and provide them with the appropriate medium.
  • FIG. 9 shown second embodiment of a cylinder crankcase 1 are - according to the first embodiment of the Fig. 3 and 4 -
  • Several individual, "suitcase-like" connecting pipes 7 have been poured as a guide channels 5d during casting of the housing.
  • the guide channels 5c drilled to the cylinder heads not subsequently in the cylinder crankcase 1, but also realized in the form of casting the housing with cast-in tubes, whereby advantageously an additional post-processing step is saved on the casting.
  • a connecting pipe 7 and a pipe for the formation of the guide channel 5c have been connected to each other before pouring.
  • a guide channel 5c to the cylinder head also branch off from a connecting pipe 7 at a location other than shown. It is also possible that a guide channel 5c does not have a connecting tube 7 with lubricant is fed, but directly from the drilled main oil passage 4 (for example, by the formation of guide channels 5c to supply the cylinder heads separate, appropriately positioned pipes are poured). Furthermore, the leading to the cylinder heads, designed as a cast-in tubes guide channels 5c part of a cast-pipe system (corresponding to that in the FIGS. 5 and 6 Example shown) and branch off either directly from the tubular main oil passage 4 or sub-guide channels 9b.
  • a tubular guide channel 5c not branch off from the main oil passage 4, a connecting pipe 7, a secondary guide channel 9b, etc., but in the area of a bearing (here, for example, the camshaft bearing 3, but other bearings are possible) in a groove of a bearing ring and from be supplied there with lubricant.
  • a bearing here, for example, the camshaft bearing 3, but other bearings are possible
  • Fig. 10 shows a further advantageous cylinder crankcase 1 as a cast component for an internal combustion engine. Laterally visible are oil sump connection surfaces 14 to which an oil sump can be fastened.
  • the cylinder crankcase 1 has at least one guide channel 5e, which forwards a fluid medium to a point of need, is formed in the form of a pipe and is cast in during the casting of the cylinder crankcase 1.
  • This cast as a pipe guide channel 5e forms an oil supply 11 for the piston cooling, so passes oil as a fluid medium to a demand site.
  • the oil supply line 11 ends here via a depression 21 on an end face 15 of the cylinder crankcase 1 and is supplied from an oil pump with oil.
  • lubricant could be fed into the oil supply line 11 at another point of the oil circuit within the cylinder crankcase 1.
  • a plurality of cylinders 12 are advantageously supplied by a common oil feed 11.
  • the cast-in pipe guide channel 5e is arranged in the longitudinal extension of the cylinder crankcase 1, ie transversely to the cylinders 12. He runs here in the area of the crank chambers at the lower cylinder areas at a certain distance from the Zylinderau Consujar. It can be seen that the guide channel 5e is adapted to the shape of the cylinder 12, so that there is a "wave-like" curved course.
  • the oil supply line 11 is formed in the embodiment substantially exposed. In several places it is locally looped with casting material of the component. These Gußhalterieux 13 cause a solid composite of oil supply 11 and component.
  • the spray mounts 13 also form the mounting points for the spray nozzles, not shown here.
  • the spray nozzles are subsequently mechanically introduced into the oil feed line 11 and respectively designed and arranged such that they inject lubricant directed into a cylinder space under a piston crown. This cools the pistons and lubricates the cylinder walls.
  • oil feed line 11 could also have a different course or, a different arrangement or be completely encapsulated over the entire length or larger areas.
  • several guide channels 5e which form oil supply lines 11 for the piston cooling, could also be cast. If necessary, the oil supply line 11 could also advantageously have different cross-sectional shapes in their course.
  • Fig. 11 shows another inventive cylinder crankcase 1 as a cast component for an internal combustion engine, which has at least one guide channel 5f, which forwards a fluid medium to a demand site, formed in the form of a tube and is cast during casting of the cylinder crankcase 1 with.
  • the guide channel 5f cast in as a tube forms a pressure oil line 16 to a cylinder head.
  • the cast as a pipe pressure oil line 16 is supplied directly here by a main oil passage 4 with lubricant.
  • the connection of the guide channel 5f is made to the 6lniklauf in the illustrated embodiment.
  • the pressure oil line 16 could be fed from another area of the oil balance within the cylinder crankcase 1 by, for example, before being poured into the cylinder crankcase with another oil-carrying line has been connected to a composite pipe (see. Fig. 9 ) or by opening into a groove of a bearing. Numerous other advantageous variants are possible.
  • a threaded bore 18 and another recess 19 - the cast-in as a pipe guide channel 5f has a contour adapted to the course and is here "curved" bent.
  • the pressure oil line 16 is completely surrounded here in longitudinal extension with casting material.
  • it could, depending on the design conditions, advantageously also be arranged such that it runs partially or completely exposed in parts.
  • it could advantageously have different cross-sectional shapes in its course, e.g. To overcome bottlenecks in the cylinder crankcase 1.
  • the appropriate number of cast as a pipe pressure oil lines 16 for the oil supply of the cylinder head and the cylinder heads on the cylinder crankcase 1 depends on the respective assembly of the engine.
  • the realization of the cylinder head oil supply in the form of a cast-in pipe or several cast-in pipes is very advantageous for the designer, as he his oil supply is not straight - as in the case of mechanical introduction through Drilling - but curved and can bring in adapted to the spatial conditions.
  • the Fig. 12a and 12b show yet another advantageous cylinder crankcase 1 as a cast component for an internal combustion engine, which has at least one guide channel 5g, which forwards a fluid medium to a point of need, formed in the form of a tube and cast in the casting of the cylinder crankcase 1 with.
  • This guide channel 5g cast in as a tube forms a fuel line 24 for supplying a fuel pump with fuel as a fluid medium. Due to the curved line 25 is in Fig. 12a indicated that the representation of the cast-in fuel line 24 is located in a different sectional plane than the rest of the drawing.
  • guide channels 5g are each cast as a tube in an outer wall 26 of the cylinder crankcase 1, and that they extend in the longitudinal extent of the cylinder crankcase 1 (see. Fig. 12b ).
  • the middle fuel line 24 is a fuel supply line and the outer fuel lines 24 are each a fuel return line.
  • a recess 27 shown in the later a fuel pump is used.
  • a plurality of recesses 27 are provided for fuel pumps over the length of the central fuel line 24, wherein the number depends on the number of cylinders of the respective engine.
  • the fuel supply line is respectively cut or cut in the regions of the recesses 27 for the fuel pumps, thereby producing the connections between the guide channel 5g and pumps. Openings in the fuel return lines later also become mechanical brought in.
  • each fuel is removed from the supply line and pumped through a connection line to an injection nozzle in a cylinder head.
  • fuel lines are mechanically introduced into the outer wall of a cylinder crankcase as long, straight holes.
  • the pouring of one or more fuel pipe (s) as a pipe with the manufacturing method according to the invention offers the advantageous possibility that the guide channel, if necessary, can be bent. It may advantageously be exposed predominantly or in sections, may not have round cross-sectional shapes or have different cross-sectional shapes in its course. Thereby, e.g. a reduction in the component wall thickness possible, resulting in savings in material and weight and reduced manufacturing costs.
  • the course of the lines can be optimized. Since the fuel line (s) 24 are already integrated in the finished cast component, the workload is also significantly reduced overall.
  • FIG. 13 An example of such an advantageous combination shows Fig. 13 , There is a cylinder crankcase 1 can be seen, in which the supply of crankshaft bearings 2 and 3 camshaft bearings with lubricant is realized by cast into the bulkheads 23 curved guide channels 5d (corresponding to that in the Fig. 3 and 4 described embodiment).
  • a cast-in as a pipe guide channel 5c is provided, which forms a pressure oil pipe 16 to a cylinder head. Unlike in the Fig. 11 shown embodiment, this is not supplied directly from the main oil passage 4 with oil, but branches off from the cast-guide channel 5d.
  • guide tubes 5g cast in as tubes are provided, which form fuel lines 24 (supply line and return lines) for the supply of a fuel pump (corresponding to the exemplary embodiment of FIG Fig. 12 ).
  • a cast-in stock supply via separate connecting pipes 7 i.V.m. a cast supply line 11 for the piston cooling; a cast-in supply line 11 for the piston cooling i.V.m. a cast-in fuel line 24; a cast-in pressure oil line 16 to the cylinder head i.V.m. a cast-in fuel line 24, etc.
  • the guide channels 5 shown for the oil supply and the fuel supply can be transferred accordingly to guide channels 5 for another medium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Description

Die Erfindung betrifft ein gegossenes Bauteil für eine Brennkraftmaschine, wobei es sich bei dem Bauteil um ein Zylinderkurbelgehäuse handelt, das mindestens einen Führungskanal aufweist, der in Form eines Rohres ausgebildet und beim Gießen des Bauteiles mit eingegossen ist und der ein fluides Medium zu einer Bedarfstelle weiterleitet, wobei es sich bei dem fluiden Medium um Öl handelt.The invention relates to a cast component for an internal combustion engine, wherein the component is a cylinder crankcase having at least one guide channel, which is formed in the form of a tube and molded during casting of the component and which forwards a fluid medium to a demand site wherein the fluid medium is oil.

Brennkraftmaschinen sind in Form von Verbrennungsmotoren wesentlicher Bestandteil von Fahrzeugen (z.B. PKW und Nutzfahrzeuge, Schiffe etc.) und kommen auch als stationäre Motore zum Einsatz. Dabei enthalten Brennkraftmaschinen zahlreiche gegossene Bauteile, die mindestens einen Führungskanal (auch Versorgungsleitung genannt) aufweisen, der ein fluides Medium (z.B. Öl, Wasser, Gas oder andere flüssige bzw. gasförmige Medien) zu einer Bedarfstelle im Motor bzw. in angrenzenden Bereichen weiterleitet. Manche der Führungskanäle können auch selbst der Kühlung eines Bauteils dienen. Bedarfstellen sind die Orte, an denen das jeweilige Medium benötigt wird, z.B. zu schmierende Lager, zu kühlende Bereiche usw.Internal combustion engines, in the form of internal combustion engines, are an integral part of vehicles (for example cars and commercial vehicles, ships, etc.) and are also used as stationary engines. In this regard, internal combustion engines include numerous molded components having at least one guide channel (also called a supply line) which relays a fluid medium (e.g., oil, water, gas, or other liquid or gaseous media) to a demand site in the engine or adjacent areas. Some of the guide channels can also be used to cool a component itself. Where needed are the locations where the particular medium is needed, e.g. bearings to be lubricated, areas to be cooled, etc.

Ein Führungskanal bzw. mehrere Führungskanäle kommt/kommen insbesondere in einem Zylinderkurbelgehäuse bzw. dazu benachbarten Anbauteilen vor. Führungskanäle werden in bekannter Weise durch mechanische Bearbeitung auf Werkzeugmaschinen bzw. Transferstraßen eingebracht, d.h. gebohrt. Dazu werden in mehreren aufwendigen, hochpräzise auszuführenden Arbeitsschritten zentrale Hauptführungskanäle und Nebenführungskanäle, die Abzweigungen zu den einzelnen Bedarfstellen bilden, in das Bauteil gebohrt. Anschließend müssen zahlreiche, nicht benötigte Zugänge dauerhaft und sicher verschlossen werden. Sehr lange, geradlinige Führungskanäle, wie die des Hauptölkanales bei einem Zylinderkurbelgehäuse werden heute auch schon vereinzelt gegossen durch Umgießen eines Rohres oder durch Freisparen durch einen entsprechenden Gießkern.A guide channel or a plurality of guide channels comes / come especially in a cylinder crankcase or adjacent thereto add-on parts. Guide channels are introduced in a known manner by mechanical processing on machine tools or transfer lines, ie drilled. For this purpose, central main guide channels and secondary guide channels, which form branches to the individual points of need, are bored into the component in a number of complex, highly precise steps. Subsequently, numerous, unnecessary accesses must be closed permanently and safely. Very long, straight-line guide channels, such as those of the main oil channel in a cylinder crankcase are already isolated today poured by pouring a pipe or by saving by a corresponding casting core.

Aus der DE 199 61 092 A1 ist bekannt, in einem gegossenen Zylinderblock bzw. Zylinderkopf eines Verbrennungsmotors während der Fertigung als Rohre vorgeformte Kühlkanäle mit kleinem Durchmesser einzugießen. Diese führen um Bauelemente wie Zündkerzen oder Kraftstoffeinspritzdüsen herum und bilden ein Kühlsystem für die Flüssigkeitskühlung des Verbrennungsmotors. Die DE 33 00 924 C2 lehrt, zur Wasserkühlung von Stegen zwischen eng und direkt zusammengegoßsenen Zylindern eines Zylinderblockes einer wassergekühlten Brennkraftmaschine in das die Stege bildende Gußmaterial Rohre einzugießen, die eine Verbindung zwischen den seitlichen Kühlwassermänteln des Zylinderblockes herstellen. Dadurch ergibt sich eine intensive Kühlung der hoch beanspruchten Stegbereiche.From the DE 199 61 092 A1 It is known to pour in a cast cylinder block or cylinder head of an internal combustion engine during manufacture as pipes preformed cooling channels with a small diameter. These lead around components such as spark plugs or fuel injection nozzles and form a cooling system for the liquid cooling of the internal combustion engine. The DE 33 00 924 C2 teaches, for water cooling of lands between closely and directly coalesced cylinders of a cylinder block of a water-cooled internal combustion engine, into which the webs forming casting material pour tubes which establish communication between the lateral cooling water jackets of the cylinder block. This results in intensive cooling of the highly stressed web areas.

Aus der DE 43 41 040 A1 ist bekannt, in einen gegossenen Motorblock für die Schmiermittelversorgung von Lagerstellen ein vorgefertigtes Rohrsystem zu integrieren. Dazu wird das Rohrsystem, das den Hauptölkanal und Teilkanäle umfaßt, als Einlegeteil in die Gießform integriert und beim Gießen des Motorblockes mit eingegossen.From the DE 43 41 040 A1 It is known to integrate a prefabricated pipe system in a cast engine block for the lubricant supply of bearings. For this purpose, the pipe system, which includes the main oil passage and sub-channels, integrated as an insert into the mold and cast in the casting of the engine block.

Die DE 196 52 049 C1 offenbart ein aus zwei Hälften bestehendes, gegossenes Kurbelgehäuse, in das Rohre/Rohrsysteme zum Öltransport zu den Zylinderdeckel und Nockenwellenlagern eingegossen sind. Die Rohre werden über Verbindungsbohrungen aus den Kurbelwellenlagern mit Öl versorgt. Die Kurbelwellenlager werden von einer eingeklemmten Ölversorgungsleitung versorgt.The DE 196 52 049 C1 discloses a two-piece molded crankcase into which pipes / pipe systems are molded for oil transfer to the cylinder covers and camshaft bearings. The pipes are supplied with oil via connecting bores from the crankshaft bearings. The crankshaft bearings are powered by a trapped oil supply line.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Bauteil - und zwar einem Zylinderkurbelgehäuse - der oben genannten Art den Herstellungs- und Kostenaufwand zu verringern sowie ein Verfahren für die Herstellung eines erfindungsgemäßen Bauteiles vorzuschlagen.The invention is based on the object in a component - and a cylinder crankcase - of the above type to reduce the manufacturing and cost and to propose a method for the production of a component according to the invention.

Diese Aufgabe wird bei einem gegossenen Bauteil der oben genannten Art erfindungsgemäß durch die Merkmale des Anspruches 1 oder des Anspruches 13 gelöst.This object is achieved according to the invention in a cast component of the type mentioned above by the features of claim 1 or claim 13.

Erfindungsgemäß handelt es sich bei dem gegossenen Bauteil um ein Zylinderktzrbelgehäuse. Ein Zylinderkurbelgehäuse weist zahlreiche Führungskanäle insbesondere für öl und Wasser auf, so daß durch das Eingießen eines Führungskanales oder mehrerer Führungskanäle, der bzw. die jeweils als Rohr ausgebildet ist/sind, eine erhebliche Einsparung an Herstellungsaufwand erreicht wird. Dabei handelt es sich bei einem als Rohr eingegossenen Führungskanal nicht um den Hauptölkanal, da dies zum Stand der Technik gehört. Ziel der Erfindung ist es vielmehr, einen anderen Führungskanal oder mehrere andere Führungskanäle für Öl bzw. andere Medien zu Bedarfstellen als Rohr(e) einzugießen. Als wesentliche Führungskanäle zu Bedarfstellen bei einem Zylinderkurbelgehäuse, die erfindungsgemäß in Form eingegossener Rohre vorteilhaft realisiert werden können, sind z.B. die Ölzuleitungen zu Kurbelwellen- bzw. Nockenwellenlagern, die Zuleitung für die Kolbenkühlung, die Druckölleitung zum Zylinderkopf oder Ölrückläufe zu nennen.According to the invention, the cast component is a cylindrical eccentric housing. A cylinder crankcase has numerous guide channels, in particular for oil and water, so that by pouring a guide channel or more guide channels, which is or in each case designed as a tube, a considerable saving in manufacturing effort is achieved. In this case, a guide channel cast in as a pipe is not the main oil channel, since this belongs to the state of the art. Rather, the aim of the invention is to pour in another guide channel or several other guide channels for oil or other media to be required as a pipe (s). As essential guide channels to be required in a cylinder crankcase, which can be advantageously realized in the form of cast-in tubes according to the invention, e.g. to call the oil supply lines to crankshaft or camshaft bearings, the supply line for the piston cooling, the pressure oil line to the cylinder head or oil return.

Ferner kann mindestens ein Führungskanal als Rohr in das Zylinderkurbelgehäuse eingegossen sein, der eine Kraftstoffleitung bildet.Furthermore, at least one guide channel can be cast as a pipe in the cylinder crankcase, which forms a fuel line.

Je nach gegossenem zylinderkurbelgehäuse kann es zweckmäßig sein, an dem Bauteil nur einen einzigen als Rohr eingegossenen Führungskanal vorzusehen. Vorteilhafterweise umfaßt das Bauteil mehrere eingegossene Führungskanäle, um fertigung- und Kostenaufwand einzusparen. Dabei können die Führungskanäle jeweils als einzelnes Verbindungsrohr für die Mediumführung eingebracht sein. D.h. es werden beim Gießen mehrere einzelne, entsprechend geformte Rohre als Verbindungsteile mit eingegossen. Dies bietet ein hohes Maß an Freiheit hinsichtlich des Verlaufes der Führungskanäle. Auch eine Kombination von Führungskanälen in Rohrverbundform und einzelnen Verbindungs - teilen an demselben Bauteil ist möglich und vorteilhaft.Depending on the cast cylinder crankcase, it may be appropriate to provide only a single cast as a pipe guide channel on the component. Advantageously, the component comprises a plurality of cast-in guide channels to save manufacturing and cost. In this case, the guide channels can be introduced in each case as a single connecting tube for the medium guide. This means that when pouring several individual, correspondingly shaped tubes are cast as connecting parts with. This provides a high degree of freedom in terms of the course of the guide channels. A combination of guide channels in pipe composite form and individual connecting parts on the same component is possible and advantageous.

Bei dem erfindungsgemäßen Zylinderkurbelgehäuse nach Anspruch 1 dienen mehrere in das Zylinderkurbelgehäuse als Rohre eingegossene Führungskanäle dazu, in dem Zylinderkurbelgehäuse gelegene Lager zur Schmierung mit Öl zu versorgen, bilden also jeweils eine Ölzuleitung. Zweckmäßigerweise verläuft ein Führungskanal dazu im Bereich einer Schottwand des Zylinderkurbelgehäuses.In the cylinder crankcase according to the invention according to claim 1 serve several cast in the cylinder crankcase as pipes guide channels to supply bearings located in the cylinder crankcase for lubrication with oil, thus each form an oil supply. Expediently, a guide channel extends in the region of a bulkhead of the cylinder crankcase.

Bei dem erfindungsgemäßen Zylinderkurbelgehäuse nach Anspruch 13 ist mindestens ein Führungskanal als Rohr eingegossen, der eine Ölzuleitung für die Ölversorgung des Zylinderkopfes bzw. der Zylinderköpfe bildes. Die Ölzuleitung wird direkt von dem Hauptölkanal mit Öl gespeist.In the cylinder crankcase according to the invention according to claim 13, at least one guide channel is cast as a tube, the image an oil supply line for the oil supply of the cylinder head and the cylinder heads. The oil supply is fed directly from the main oil channel with oil.

Das Eingießen eines vorgefertigten Rohres als Führungskanal hat gegenüber dem mechanischen Einbringen durch Bohren den Vorteil, daß der Führungskanal nicht geradlinig (wie beim Bohren) zu verlaufen braucht, sondern an den erforderlichen Konturenverlauf des Bauteiles mit den jeweils gewünschten Biegungen angepaßt werden kann. Im Unterschied dazu müssen beim geradlinigen Bohren eines Führungskanales gemäß dem Stand der Technik zwangsläufig Bearbeitungswege getätigt werden, die nicht der Versorgung der Bedarfstelle dienlich sind. Ferner weist eine Bohrung einen Zugang nach außen auf, der nachträglich wieder verschlossen werden muß, was zu Dichtigkeitsproblemen führen kann. Derartige Nachteile und Probleme treten bei einem in Form eines entsprechend vorgefertigten bzw. geformten Rohres eingegossenen Führungskanal nicht auf.Pouring a prefabricated pipe as a guide channel has over the mechanical introduction by drilling the advantage that the guide channel does not need to be straight (as drilling), but can be adapted to the required contour of the component with the respective desired bends. In contrast, in the straight-line drilling of a guide channel according to the prior art inevitably machining paths must be made that are not useful to supply the need site. Furthermore, a bore has an access to the outside, which must be subsequently closed again, which can lead to leakage problems. Such disadvantages and problems do not occur in a cast in the form of a corresponding prefabricated or molded tube guide channel.

Ein weiterer Vorteil der Erfindung liegt darin, daß ein eingegossener Rohr-Führungskanal bzw, mehrere eingegossene Rohr-Führungskanäle ein Höchstmaß an Sauberkeit an der inneren Kanalwandung bietet/bieten und der Hohlraum im Unterschied zum Stand der Technik frei von Rückständen infolge eines mechanischen Einbringens des Kanals bzw. frei von Gießrückständen (z.B. Kernrückständen) infolge eines Eingießens des Kanales in das Bauteil als Hohlraum durch Einlegen eines Kernes ist.A further advantage of the invention is that a cast-in tube guide channel or, more cast-pipe guide channels provide a maximum of cleanliness on the inner channel wall / offer and the cavity, unlike the prior art free from residues due to mechanical introduction of the channel or free of casting residues (eg core residues) due to a pouring of the channel into the component as a cavity by inserting a core.

Dieser Aspekt ist bei einem Führungskanal zur Lagerschmierung besonders wichtig, da im Kanal ggf. verbliebene Rückstände mit dem Öl beim Motorbetrieb in das Lager gelangen und zur Zerstörung des Lagers führen würden.This aspect is particularly important in a guide channel for bearing lubrication, as in the channel possibly remaining residues with the oil during engine operation in the camp and would lead to the destruction of the bearing.

Darüber hinaus ist es im Unterschied zu einem gebohrten Führungskanal, bei dem nur kreisrunde Querschnitte realisierbar sind, möglich, den Kanal mit nahezu jeder gewünschten Querschnittsform einzubringen und dadurch den Verlauf und die Versorgung zu optimieren. Ferner kann durch geeignete Wahl der Querschnittsform auch die Stärke der Bauteilwandung, in der der Führungskanal eingegossen ist, reduziert werden, was zu einer Gewichtsreduktion des Bauteiles führt.In addition, in contrast to a drilled guide channel, in which only circular cross-sections are feasible, it is possible to introduce the channel with almost any desired cross-sectional shape and thereby optimize the course and the supply. Furthermore, by suitable choice of the cross-sectional shape and the strength of the component wall, in which the guide channel is cast, can be reduced, resulting in a weight reduction of the component.

Selbstverständlich ist es möglich, an demselben Bauteil einen oder mehrere als Rohr eingegossene Führungskanäle und einen oder mehrere auf herkömmlichem Wege eingebrachte Führungskanäle vorzusehen.Of course, it is possible to provide on the same component one or more cast as a tube guide channels and one or more introduced in a conventional manner guide channels.

Gemäß einer vorteilhaften weiterbildung der Erfindung weist das Zylinderkurbelgehäuse mindestens einen als Rohr eingegossenen Führungskanal auf, der eine Ölzuleitung für die Versorgung der Kolbenkühlung bzw. Schmierung der Zylinderwandung bildet. Für die Einsparung an Arbeitsaufwand ist es vorteilhaft, wenn mehrere Kolben bzw. Zylinder von einer gemeinsamen Ölzuleitung aus versorgt werden. Dafür kann die Ölzuleitung zweckmäßig derart ausgebildet und angeordnet sein, daß sie in Längserstreckung des Zylinderkurbelgehäuses verläuft und von ihr mehrere Spritzdüsen abzweigen, die Öl gerichtet jeweils in einen Zylinderraum unter einen Kolbenboden spritzen, wodurch zum einen der Kolbenboden gekühlt und zum anderen die betreffende Zylinderwandung geschmiert wird. Selbstverständlich können auch mehrere Ölzuleitungen zu einem Zylinder oder zu mehreren Zylindern mit ggf. anderen Verläufen eingegossen sein.According to an advantageous development of the invention, the cylinder crankcase has at least one cast-in as a pipe guide channel, which forms an oil supply line for the supply of the piston cooling or lubrication of the cylinder wall. For saving labor, it is advantageous if a plurality of pistons or cylinders are supplied by a common oil supply from. For this purpose, the oil supply can be suitably designed and arranged such that it extends in the longitudinal extension of the cylinder crankcase and branch off several spray nozzles, the oil directed each injected into a cylinder space below a piston head, thereby cooling the piston crown on the one hand and lubricated on the other the respective cylinder wall becomes. Of course, it is also possible for a plurality of oil supply lines to be cast into a cylinder or to a plurality of cylinders, possibly with other progressions.

Gemäß einer vorteilhaften Ausführung der Erfindung weist das Zylinderkurbelgehäuse mindestens einen als Rohr eingegossenen Führungskanal auf, der eine Kraftstoffleitung für die Versorgung einer Kraftstoffpumpe bildet. Die Kraftstoffleitung verläuft vorteilhafterweise in Längserstreckung des Zylinderkurbelgehäuses im Bereich einer Gehäuseaußenwand. In einer vorteilhaften Weiterbildung sind mehrere Kraftstoffleitungen als Rohre eingegossen, z.B. mindestens eine Zufuhrleitung und mindestens eine Rücklaufleitung.According to an advantageous embodiment of the invention, the cylinder crankcase has at least one cast-in as a pipe guide channel, which forms a fuel line for the supply of a fuel pump. The fuel line runs advantageously in the longitudinal extent of the cylinder crankcase in the region of a housing outer wall. In an advantageous development, several fuel lines are cast as tubes, for example at least one supply line and at least one return line.

In einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, daß der mindestens eine als Rohr eingegossene Führungskanal derart angeordnet ist, daß er streckenweise ganz oder teilweise freiliegend verläuft, d.h. er kann außerhalb der Bauteilwandung auf dessen Außenseite bzw. Innenseite verlaufen. Örtlich kann der Führungskanal dagegen schellenartig mit Gußmaterial des Bauteils umgossen sein, um für den festen Verbund von Kanal und Bauteil zu sorgen. Der Führungskanal kann (bezogen auf seine Längserstreckung) vollständig freiliegend verlaufen oder aber teilweise mit in die Bauteilwandung eingegossen sein. Die Maßnahme des streckenweise freiliegenden Verlaufes bietet gegenüber dem Stand der Technik, in dem die gebohrten oder mit Kernen eingegossenen Führungskanäle nur in der Wandung des Bauteiles verlaufen können, den Vorteil, daß die Wandstärke des Bauteiles erheblich reduziert und dadurch an Material und Gewicht eingespart werden kann.In an advantageous embodiment of the invention it is provided that the at least one cast-in as a duct guide channel is arranged such that it runs partially or completely exposed in parts, i. he can run outside of the component on the outside or inside. On the other hand, locally the guide channel can be cast in a ring-like manner with casting material of the component in order to ensure a firm bond between the channel and the component. The guide channel can (based on its longitudinal extent) run completely exposed or partially be molded into the component wall. The measure of the partially exposed course offers over the prior art in which the drilled or cast with cores guide channels can extend only in the wall of the component, the advantage that the wall thickness of the component can be significantly reduced and thereby saved on material and weight ,

Gemäß einer vorteilhaften Weiterbildung der Erfindung weist der mindestens eine eingegossene Führungskanal in seinem Verlauf unterschiedliche Querschnittsformen auf. Dadurch wird eine gute Anpassung an die jeweilige Konstruktion des Bauteiles erreicht. Beispielsweise können enge Konturbereiche überwunden werden. Die jeweils zu verwirklichenden Querschnittsformen richten sich nach der jeweiligen Konstruktion des Bauteiles. Unterschiedliche Querschnittsformen an einem Rohr lassen sich vor dem Eingießen z.B. durch Hydroumformung des Rohres realisieren.According to an advantageous development of the invention, the at least one cast-in guide channel has different cross-sectional shapes in its course. As a result, a good adaptation to the respective construction of the component is achieved. For example, narrow contour areas can be overcome. The respective cross-sectional shapes to be realized depend on the particular construction of the component. Different cross-sectional shapes on a tube can be removed prior to pouring e.g. realize by hydroforming of the tube.

Gemäß einer vorteilhaften Ausführung der Erfindung ist das Bauteil aus einem metallischen Werkstoff oder Kunststoff gefertigt. Ebenso kann vorteilhafterweise der mindestens eine eingegossene Führungskanal aus einem metallischen werkstoff oder Kunststoff gefertigt sein. Als metallische werkstoffe kommen z.B. Stahl, sämtliche Gußeisenwerkstoffe, Leichtmetalle, Buntmetalle in Frage. Welcher Werkstoff im einzelnen vorzugsweise einzusetzen ist, hängt u.a. auch von dem jeweils zu gießenden Bauteil ab.According to an advantageous embodiment of the invention, the component is made of a metallic material or plastic. Likewise, advantageously, the at least one cast-guide channel can be made of a metallic material or plastic. As metallic materials For example, steel, all cast iron materials, light metals, non-ferrous metals come into question. Which material is to be preferably used in particular also depends, inter alia, on the particular component to be cast.

Selbstverständlich können eingegossene Rohre als Führungskanäle auch in einem Anbauteil eines Zylinderkurbelgehäuses - insbesondere in einem Zylinderkopf, einem Getriebegehäuse, einem Rädergehäuse, einer Ölwanne oder dergleichen - verwirklicht sein. Dabei können Führungskanäle im Zylinderkurbelgehäuse bzw. in dem/den Anbauteil(en) von einem gemeinsamen oder mehreren versorgungskreisläufen versorgt werden.Of course, cast-in tubes can be realized as a guide channels in an attachment of a cylinder crankcase - in particular in a cylinder head, a transmission housing, a gear housing, an oil pan or the like. In this case, guide channels in the cylinder crankcase or in the / the attachment (s) can be supplied by a common or multiple supply circuits.

Die oben genannte Aufgabe wird ferner gelöst durch ein Herstellungsverfahren für ein gegossenes Zylinderkurbelgehäuse mit den Merkmalen des Anspruches 22.The above object is further achieved by a manufacturing method for a cast cylinder crankcase having the features of claim 22.

Durch dieses Gießkonzept ist es möglich, ein zylinderkurbelgehäuse mit eingegossenen Rohr-Führungskanälen herzustellen, aber auch andere Bauteile wie Anbauteile für das zylinderkurbelgehäuse (z.B. Zylinderkopf, Getriebegehäuse, Rädergehäuse, Ölwanne etc.) sind vorteilhaft zu verwirklichen. Je nachdem, ob die Führungskanäle vollständig in die Bauteilwandung eingegossen oder ganz oder teilweise freiliegend sein sollen, wird das einzugießende Rohr in die Gießform (ggf. mittels Stützen) eingebaut bzw. in den Gießkern eingebracht (z.B. in einen Sandkern eingeschossen oder bei der Kernherstellung mit eingearbeitet) oder in ein verlorenes Modell eingearbeitet bzw. in dessen lose Formmedium-Hohlraumfüllung direkt eingebettet, oder das Rohr wird an einem Rohrende in dem Gießkern gelagert. Beim Einbringen eines Rohres in den Gießkern sind bestimmte Bereiche wieder freizulegen, um eine feste Gußverbindung mit dem Bauteil zu erzeugen. Nach dem Gießen mit dem jeweils einzusetzenden Gießverfahren wird das gegossene Rohteil aus der Form entnommen, Kerne bzw. loses Formmedium entfernt. Beim Einbringen des Hauptölkanales durch Bohren werden die eingegossenen Verbindungsrohre durchbohrt, wodurch die Verbindung der Führungskanäle zum Hauptölkanal hergestellt wird. Es erfolgen die üblichen Nachbearbeitungsmaßnahmen.Through this pouring concept, it is possible to produce a cylinder crankcase with cast-pipe guide channels, but other components such as attachments for the cylinder crankcase (eg cylinder head, gearbox housing, wheel housing, oil pan, etc.) are advantageous to realize. Depending on whether the guide channels are to be completely cast into the component wall or completely or partially exposed, the einzugießende pipe is installed in the mold (possibly by means of supports) or introduced into the casting core (eg injected into a sand core or in the core production with incorporated) or incorporated into a lost model or directly embedded in the loose mold medium cavity filling, or the tube is mounted at a pipe end in the casting core. When introducing a tube into the casting core, certain areas must be exposed again in order to produce a firm cast connection with the component. After casting with the casting method to be used in each case, the cast blank is removed from the mold, cores or loose molding medium are removed. When introducing the main oil channel by drilling the cast-in connecting pipes are pierced, whereby the connection the guide channels to the main oil channel is produced. There are the usual post-processing measures.

Erfindungsgemäß kann das Rohr auch in mehreren Gießkernen eingebracht sein, die als Einzelkerne zu einem Kernblock montiert sein können.According to the invention, the tube may also be incorporated in a plurality of casting cores, which may be mounted as individual cores to form a core block.

Ein erfindungsgemäßes, gegossenes Bauteil kann mit unterschiedlichen Gießverfahren gefertigt werden. Gemäß einer ersten vorteilhaften Verfahrensvariante wird das Bauteil in einem Gießverfahren mit verlorener Form gegossen, z.B. in einem reinen Kernform-verfahren, einem Kernform- i.V.m. Grünform-Verfahren, Kernform i.V.m. Kaltharzform-Verfahren usw. Nach einer zweiten vorteilhaften verfahrensvariante wird das Bauteil in einem Gießverfahren mit Dauerform gegossen, z.B. Kokillen-Guß, Druckguß, Spritzguß usw. In, einer dritten bevorzugten Variante wird das Bauteil im Lost Foam Verfahren gegossen. Vorteile des Lost Foam Gießverfahrens (eine Form des Vollformgießens) sind beispielsweise das Fehlen von Kernrückständen am gegossenen Bauteil, die hohe Oberflächenqualität, hochwertige Konturschärfe und große Abbildungsgenauigkeit und damit ein relativ geringer Nachbearbeitungsaufwand.A cast component according to the invention can be manufactured with different casting methods. According to a first advantageous variant of the method, the component is cast in a lost-mold casting method, e.g. in a pure core molding process, a core molding i.V.m. Green mold method, core shape i.V.m. Cold resin molding process, etc. According to a second advantageous variant of the method, the component is cast in a continuous casting process, e.g. Mold casting, die casting, injection molding, etc. In a third preferred variant, the component is cast in the lost foam method. Advantages of the Lost Foam casting process (a form of full-cast casting) are, for example, the lack of core residues on the cast component, the high surface quality, high-quality contour definition and great imaging accuracy, and thus a relatively low reworking effort.

Falls das Bauteil mehrere eingegossene Führungskanäle aufweisen soll, können die dafür benötigten Rohre vorzugsweise als einzelne Verbindungsrohre eingebracht werden. Ferner kann es bei manchen Varianten vorteilhaft sein, mehrere Rohre jeweils zu einem Teilrohrsystem zu verbinden und mehrere Teilrohrsysteme in das Bauteil einzugießen. Welche Variante zu bevorzugen ist, hängt jeweils von der konkreten Aufgabenstellung ab.If the component is to have a plurality of cast-in guide channels, the tubes required for this purpose can preferably be introduced as individual connecting tubes. Furthermore, it may be advantageous in some variants to connect a plurality of tubes in each case to a partial tube system and to pour several partial tube systems into the component. Which variant is preferable depends on the specific task.

In den zeichnungen sind Ausführungsbeispiele von erfindungsgemäßen und vorteilhaften Zylinderkurbelgehäusen schematisch dargestellt. Es zeigen:

Fig. 1
einen ausschnittsweisen Querschnitt aus einem Zy- linderkurbelgehäuse nach dem Stand der Technik,
Fig. 2
einen ausschnittsweisen Längsschnitt zu Fig. 1 (Stand der Technik),
Fig. 3
einen ausschnittsweisen Querschnitt aus einem Zy- linderkurbelgehäuse gemäß einem ersten Ausführungs- beispiel eines ersten erfindungsgemäßen zylinder- kurbelgehäuse-Typs,
Fig. 4
einen Längsschnitt zu Fig. 3 entsprechend Y-Y,
Fig. 5
einen ausschnittsweisen Querschnitt aus einem Zy- linderkurbelgehäuse,
Fig. 6
einen Längsschnitt zu Fig. 5 entsprechend X-X,
Fig. 7
ein einzelnes Verbindungsrohr als einzugießender Führungskanal für ein Zylinderkurbelgehäuse,
Fig. 8
ein einzugießendes Rohrsystem für ein Zylinderkur- belgehäuse,
Fig. 9
einen ausschnittsweisen Querschnitt aus einem Zy- linderkurbelgehäuse gemäß einem zweiten Ausfüh- rungsbeispiel des ersten erfindungsgemäßen Zylin- derkurbelgehäuse-Typs,
Fig. 10
ein vorteilhaftes Zylinderkurbelgehäuse in schema- tischer Ansicht von unten,
Fig. 11
einenzweiten erfindungsgemäßen Zylinderkurbelge- häuse-Typ in einem ausschnittsweisen Querschnitt,
Fig. 12a
ein anderes vorteilhaftes Zylinderkurbelgehäuse in einem ausschnittsweisen Querschnitt,
Fig. 12b
einen ausschnittsweisen Längsschnitt entsprechend A-A aus Fig. 12a und
Fig. 13
ein weiteres vorteilhaftes Zylinderkurbelgehäuse in einem ausschnittsweisen Querschnitt.
In the drawings, embodiments of the invention and advantageous cylinder crankcases are shown schematically. Show it:
Fig. 1
1 is a partial cross section of a cylinder crankcase according to the prior art,
Fig. 2
a partial longitudinal section to Fig. 1 (State of the art),
Fig. 3
1 is a partial cross-sectional view of a cylinder crankcase according to a first embodiment of a first cylinder crankcase type according to the invention;
Fig. 4
a longitudinal section to Fig. 3 according to YY,
Fig. 5
a partial cross-section of a cylinder crankcase,
Fig. 6
a longitudinal section to Fig. 5 according to XX,
Fig. 7
a single connecting tube as einzugießender guide channel for a cylinder crankcase,
Fig. 8
an inlet pipe system for a cylinder block housing,
Fig. 9
1 is a partial cross-sectional view of a cylinder crankcase according to a second embodiment of the first cylinder crankcase type according to the invention;
Fig. 10
an advantageous cylinder crankcase in a schematic view from below,
Fig. 11
a second cylinder crankcase type according to the invention in a sectional cross-section,
Fig. 12a
another advantageous cylinder crankcase in a fragmentary cross section,
Fig. 12b
a partial longitudinal section corresponding to AA Fig. 12a and
Fig. 13
a further advantageous cylinder crankcase in a partial cross section.

In dem in Fig. 1 ausschnittsweise gezeigten gegossenen Bauteil, hier ein Zylinderkurbelgehäuse 1, nach dem Stand der Technik sind ein Kurbelwellenlager 2 und ein Nockenwellenlager 3 sowie ein Hauptölkanal 4 (ein Hauptführungskanal) im Querschnitt dargestellt. Ferner sind längsgeschnittene Führungskanäle 5a, 5b zu erkennen, die von dem Hauptölkanal 4 zu dem Kurbelwellenlager 2 bzw. Nockenwellenlager 3 verlaufen und beim Motorbetrieb für die Schmierung von Nockenwellen- und Kurbelwellenlagern sorgen. Der von dem Nockenwellenlager 3 ausgehende Führungskanal 5c führt zu einem Anbauteil des Zylinderkurbelgehäuses 1, und zwar hier zu einem nicht dargestellten zylinderkopf. Die gezeigten Führungskanäle 5a, 5b, 5c sind nachträglich in das gegossene Zylinderkurbelgehäuse 1 eingebracht, d.h. gebohrt. Daher ist nur ein geradliniger Verlauf der Führungskanäle 5 möglich, und das Gehäuse 1 weist fertigungstechnisch bedingte Zugänge 6 nach außen auf (links zu erkennen), die später zu verschließen sind.In the in Fig. 1 In the section shown cast component, here a cylinder crankcase 1, according to the prior art, a crankshaft bearing 2 and a camshaft bearing 3 and a main oil passage 4 (a main guide channel) are shown in cross section. Furthermore, longitudinally cut guide channels 5a, 5b can be seen which run from the main oil channel 4 to the crankshaft bearing 2 or camshaft bearing 3 and provide during engine operation for the lubrication of camshaft and crankshaft bearings. The outgoing from the camshaft bearing 3 guide channel 5c leads to an attachment of the cylinder crankcase 1, in this case to a cylinder head, not shown. The illustrated guide channels 5a, 5b, 5c are subsequently introduced into the cast cylinder crankcase 1, that is drilled. Therefore, only a straight course of the guide channels 5 is possible, and the housing 1 has manufacturing-related access 6 to the outside (to recognize left), which are to be closed later.

In Fig. 2 ist der Hauptölkanal 4 aus Fig. 1 längs geschnitten, und es sind mehrere davon abzweigende Führungskanäle 5b, die zu Lagern 3 für die Nockenwelle führen, zu erkennen. Ferner sind Aussparungen 22 im Konturenbereich des Zylinderkurbelgehäuses 1 dargestellt. Entsprechende Aussparungen 22 sind auch in den Fig. 4 und 6 zu erkennen.In Fig. 2 is the main oil channel 4 off Fig. 1 cut longitudinally, and there are several of them branching guide channels 5b, which lead to bearings 3 for the camshaft to recognize. Furthermore, recesses 22 are shown in the contour region of the cylinder crankcase 1. Corresponding recesses 22 are also in the Fig. 4 and 6 to recognize.

Fig. 3 zeigt ein erfindungsgemäßes, gegossenes Bauteil für eine Brennkraftmaschine, das mindestens einen Führungskanal 5 aufweist, der ein fluides Medium zu einer Bedarfstelle weiterleitet. Und zwar handelt es sich um ein Zylinderkurbelgehäuse 1. Die Schnittlage entspricht dabei der aus Fig. 1. Fig. 3 shows a cast component according to the invention for an internal combustion engine having at least one guide channel 5, which forwards a fluid medium to a demand site. And it is a cylinder crankcase 1. The cutting position corresponds to that of Fig. 1 ,

Zu erkennen ist ein Führungskanal 5d, der in Form eines Rohres ausgebildet und beim Gießen des Zylinderkurbelgehäuses 1 mit eingegossen worden ist. Das als Führungskanal 5d eingegossene einzelne Verbindungsrohr 7 ist hier "koffergriffartig" gebogen ausgebildet. - Selbstverständlich kann ein Führungskanal 5d auch eine andere Formgebung bzw. einen anderen Verlauf als dargestellt haben. - Von einer Biegung 8 aus, verläuft dabei ein Abschnitt 7a zu einem Kurbelwellenlager 2 und ein anderer Abschnitt 7b zu einem Nockenwellenlager 3. Die Biegung 8 befindet sich an der Stelle, an der der Hauptölkanal 4, der bei diesem Ausführungsbeispiel auf herkömmliche Weise durch Bohren nachträglich eingebracht wird, verlaufen wird. Beim Einbringen des Hauptölkanales 4 durch Bohren wird das eingegossene Verbindungsrohr 7 durchbohrt und dadurch die Verbindung des Führungskanals 5d zum Hauptölkanal 4 hergestellt. Im Motorbetrieb gelangt Öl von dem Hauptölkanal 4 über die Abschnitte 7a, 7b des Führungskanals 5d bzw. Verbindungsrohres 7 zu dem jeweiligen Kurbelwellenlager 2 bzw. Nockenwellenlager 3. Die in das Nockenwellenlager 3 und das Kurbelwellenlager 2 hineinreichenden Enden des Führungskanales 5d sind gießtechnisch bedingt und werden im Rahmen der Nachbearbeitung entfernt. Der Führungskanal 5c zu dem Zylinderkopf ist bei diesem Ausführungsbeispiel durch Bohren eingebracht.Evident is a guide channel 5d, which has been formed in the form of a tube and poured in during casting of the cylinder crankcase 1 with. The single connecting tube 7, which is cast in as a guide channel 5d, is bent here in a "handle-like manner". - Of course, a guide channel 5 d also have a different shape or a different course than shown. In this case, from one bend 8, a section 7a extends to a crankshaft bearing 2 and another section 7b to a camshaft bearing 3. The bend 8 is located at the point where the main oil channel 4, which in this embodiment is drilled in a conventional manner is subsequently introduced, will run. When introducing the main oil channel 4 by drilling the cast-in connecting pipe 7 is pierced and thereby the connection of the guide channel 5 d made to the main oil passage 4. In engine operation oil passes from the main oil passage 4 via the sections 7a, 7b of the guide channel 5d or connecting tube 7 to the respective crankshaft bearing 2 or camshaft bearing 3. The reaching into the camshaft bearing 3 and the crankshaft bearing 2 ends of the guide channel 5d are due to casting and are removed as part of the post-processing. The guide channel 5c to the cylinder head is introduced by drilling in this embodiment.

In dem Längsschnitt in Fig. 4 ist zu erkennen, daß in dem dargestellten ersten Ausführungsbeispiel mehrere einzelne Verbindungsrohre 7 als Führungskanäle 5 für die Mediumführung eingegossen sind, und zwar in die Schottwände 23. Die hier dargestellten "koffergriffartigen" Verbindungsrohre 7 münden mit einem Ende jeweils in einem Nockenwellenlager 3 und (unterbrochen durch den eingebohrten Hauptölkanal 4) mit dem anderen Ende in einem Kurbelwellenlager 2.In the longitudinal section in Fig. 4 It can be seen that in the illustrated first embodiment, a plurality of individual connecting tubes 7 are cast as guide channels 5 for the medium guide, in the bulkheads 23. The "handle-like" connecting tubes 7 shown here open at one end in each case in a camshaft bearing 3 and (interrupted through the drilled main oil passage 4) with the other end in a crankshaft bearing 2.

Selbstverständlich ist es auch möglich, anstelle eines gebogenen Verbindungsrohres z.B. zwei separate Rohre einzugießen, von denen eines in ein Kurbelwellenlager und das andere in ein Nockenwellenlager mündet. Ferner ist es auch möglich, nur ein oder mehrere Nockenwellenlager über einen Rohr-Führungskanal oder mehrere Rohr-Führungskanäle mit öl zu versorgen und die Kurbelwellenlager auf herkömmlichem Wege durch mechanisch eingebrachte Kanäle zu versorgen. Entsprechend kann/können ein oder mehrere Kurbelwellenlager über einen Rohr-Führungskanal oder mehrere Rohr-Führungskanäle mit Öl versorgt und die Nockenwellenlager auf herkömmlichem Wege durch mechanisch eingebrachte Kanäle versorgt werden.Of course, it is also possible, instead of a bent connecting pipe, e.g. pour two separate tubes, one opening into a crankshaft bearing and the other into a camshaft bearing. Furthermore, it is also possible to supply only one or more camshaft bearings via a pipe guide channel or a plurality of pipe guide channels with oil and to supply the crankshaft bearings in a conventional way by mechanically introduced channels. Accordingly, one or more crankshaft bearings can be supplied with oil via a tube guide channel or a plurality of tube guide channels, and the camshaft bearings can be supplied by mechanically introduced channels in the conventional way.

In dem in den Fig. 5 und 6 dargestellten Zylinderkurbelgehäuse 1 sind der Hauptölkanal 4 sowie die Führungskanäle 5 zu den Nockenwellenlagern 3 und Kurbelwellenlagern 2 als eingegossene Rohre ausgebildet, und zwar ist dies durch ein verzweigtes, eingegossenes Rohrsystem 9 realisiert. Dazu sind Rohre mit den entsprechenden Abmessungen (Länge, Durchmesser, Querschnittsform usw.) vor dem Gießen zu einem Rohrsystem 9 verbunden worden, das anschließend in einem geeigneten Gießverfahren eingegossen worden ist.In the in the FIGS. 5 and 6 illustrated cylinder crankcase 1, the main oil passage 4 and the guide channels 5 are formed to the camshaft bearings 3 and crankshaft bearings 2 as cast-in tubes, and this is realized by a branched, cast-pipe system 9. For this purpose, pipes with the appropriate dimensions (length, diameter, cross-sectional shape, etc.) have been connected before casting to a pipe system 9, which has subsequently been poured in a suitable casting process.

In den Fig. 3 bis 6 nicht zu erkennen ist, daß die als Rohre eingegossenen Führungskanäle 5 nicht vollständig von Gußmaterial umgeben sein, d.h. in der Bauteilwandung verlaufen, müssen, sondern streckenweise auch freiliegend verlaufen können. Ferner können die Führungskanäle 5 auch einen gebogenen, an den Konturenverlauf angepaßten Verlauf aufweisen.In the Fig. 3 to 6 can not be seen that the cast-in as tubes guide channels 5 are not completely surrounded by casting material, ie run in the component, must but in parts can also be exposed. Furthermore, the guide channels 5 may also have a curved, adapted to the contour course course.

Fig. 7 zeigt ein verbindungsrohr 7 für einen "koffergriffartigen" Führungskanal 5d in verschiedenen Ansichten. Die zu erkennenden Kernstützen 10 dienen der seitlichen Abstützung während des Gießprozesses. Allerdings ist es auch möglich, ohne Kernstützen 10 auszukommen, wenn beispielsweise die Enden des Verbindungsrohres 7 in Gießkernen ausreichend fest verankert werden. Fig. 7 shows a connecting pipe 7 for a "suitcase handle" guide channel 5d in different views. The to be recognized core supports 10 serve the lateral support during the casting process. However, it is also possible to do without core supports 10, for example, if the ends of the connecting tube 7 are anchored sufficiently firmly in casting cores.

Fig. 8 zeigt beispielhaft ein Rohrsystem 9. Von einen Hauptführungskanal 9a zweigen mehrere Nebenführungskanäle 9b ab, die zu den einzelnen Bedarf stellen führen und diese mit dem entsprechenden Medium versorgen. Fig. 8 shows an example of a pipe system 9. From a main guide channel 9a branch off a plurality of secondary guide channels 9b, which lead to the individual needs make and provide them with the appropriate medium.

Bei dem in Fig. 9 dargestellten zweiten Ausführungsbeispiel eines Zylinderkurbelgehäuses 1 sind - entsprechend dem ersten Ausführungsbeispiel aus den Fig. 3 und 4 - mehrere einzelne, "koffergriffartige" Verbindungsrohre 7 als Führungskanäle 5d beim Gießen des Gehäuses eingegossen worden. Über die Abschnitte 7a, 7b werden dabei die Kurbelwellenlager 2 und die Nockenwellenlager 3 aus dem durch Bohren nachträglich eingebrachten Hauptölkanal 4, der die Verbindungsrohre 7 jeweils schneidet, mit Schmiermittel versorgt. Im Unterschied zu dem ersten Ausführungsbeispiel sind hier die Führungskanäle 5c zu den Zylinderköpfen nicht nachträglich in das Zylinderkurbelgehäuse 1 gebohrt, sondern ebenfalls in Form von beim Gießen des Gehäuses mit eingegossenen Rohren realisiert, wodurch vorteilhaft ein zusätzlicher Nachbearbeitungsschritt an dem Gußteil eingespart wird. Ein Verbindungsrohr 7 und ein Rohr für die Ausbildung des Führungskanales 5c sind dafür vor dem Gießen jeweils miteinander verbunden worden.At the in Fig. 9 shown second embodiment of a cylinder crankcase 1 are - according to the first embodiment of the Fig. 3 and 4 - Several individual, "suitcase-like" connecting pipes 7 have been poured as a guide channels 5d during casting of the housing. About the sections 7a, 7b while the crankshaft bearing 2 and the camshaft bearing 3 are supplied from the subsequently introduced by drilling main oil passage 4, which intersects the connecting pipes 7, respectively, with lubricant. In contrast to the first embodiment, here the guide channels 5c drilled to the cylinder heads not subsequently in the cylinder crankcase 1, but also realized in the form of casting the housing with cast-in tubes, whereby advantageously an additional post-processing step is saved on the casting. A connecting pipe 7 and a pipe for the formation of the guide channel 5c have been connected to each other before pouring.

Selbstverständlich kann ein Führungskanal 5c zum Zylinderkopf auch an einer anderen Stelle als abgebildet von einem Verbindungsrohr 7 abzweigen. Ebenso ist es möglich, daß ein Führungskanal 5c nicht über ein Verbindungsrohre 7 mit Schmiermittel gespeist wird, sondern direkt vom gebohrten Hauptölkanal 4 (z.B. indem zur Ausbildung von Führungskanälen 5c zur Versorgung der Zylinderköpfe separate, entsprechend positionierte Rohre eingegossen werden). Ferner können auch die zu den Zylinderköpfen führenden, als eingegossene Rohre ausgebildeten Führungskanäle 5c Teil eines eingegossenen Rohrsystems (entsprechend dem in den Fig. 5 und 6 dargestellten Beispiel) sein und entweder direkt vom rohrförmigen Hauptölkanal 4 oder von Nebenführungskanälen 9b abzweigen. Darüber hinaus kann ein rohrförmiger Führungskanal 5c nicht vom Hauptölkanal 4, einem Verbindungsrohr 7, einem Nebenführungskanal 9b etc. abzweigen, sondern im Bereich eines Lagers (hier z.B. des Nockenwellenlagers 3, aber auch andere Lager sind möglich) in eine Nut eines Lagerringes münden und von dort mit Schmiermittel versorgt werden.Of course, a guide channel 5c to the cylinder head also branch off from a connecting pipe 7 at a location other than shown. It is also possible that a guide channel 5c does not have a connecting tube 7 with lubricant is fed, but directly from the drilled main oil passage 4 (for example, by the formation of guide channels 5c to supply the cylinder heads separate, appropriately positioned pipes are poured). Furthermore, the leading to the cylinder heads, designed as a cast-in tubes guide channels 5c part of a cast-pipe system (corresponding to that in the FIGS. 5 and 6 Example shown) and branch off either directly from the tubular main oil passage 4 or sub-guide channels 9b. In addition, a tubular guide channel 5c not branch off from the main oil passage 4, a connecting pipe 7, a secondary guide channel 9b, etc., but in the area of a bearing (here, for example, the camshaft bearing 3, but other bearings are possible) in a groove of a bearing ring and from be supplied there with lubricant.

Fig. 10 zeigt ein weiteres vorteilhaftes Zylinderkurbelgehäuse 1 als gegossenes Bauteil für eine Brennkraftmaschine. Seitlich zu erkennen sind Ölwannenanschlußflächen 14, an denen eine ölwanne befestigbar ist. Das Zylinderkurbelgehäuse 1 weist mindestens einen Führungskanal 5e auf, der ein fluides Medium zu einer Bedarfstelle weiterleitet, in Form eines Rohres ausgebildet und beim Gießen des Zylinderkurbelgehäuses 1 mit eingegossen ist. Dieser als Rohr eingegossene Führungskanal 5e bildet eine Ölzuleitung 11 für die Kolbenkühlung, leitet also Öl als fluides Medium zu einer Bedarfstelle. Die Ölzuleitung 11 endet hier über eine Einsenkung 21 an einer Stirnseite 15 des Zylinderkurbelgehäuses 1 und wird von einer Ölpumpe aus mit Öl versorgt. Selbstverständlich könnte auch an einer anderen Stelle des Ölkreislaufes innerhalb des Zylinderkurbelgehäuses 1 Schmiermittel in die Ölzuleitung 11 eingespeist werden. Fig. 10 shows a further advantageous cylinder crankcase 1 as a cast component for an internal combustion engine. Laterally visible are oil sump connection surfaces 14 to which an oil sump can be fastened. The cylinder crankcase 1 has at least one guide channel 5e, which forwards a fluid medium to a point of need, is formed in the form of a pipe and is cast in during the casting of the cylinder crankcase 1. This cast as a pipe guide channel 5e forms an oil supply 11 for the piston cooling, so passes oil as a fluid medium to a demand site. The oil supply line 11 ends here via a depression 21 on an end face 15 of the cylinder crankcase 1 and is supplied from an oil pump with oil. Of course, lubricant could be fed into the oil supply line 11 at another point of the oil circuit within the cylinder crankcase 1.

Tm gezeigten Ausführungsbeispiel werden mehrere Zylinder 12 vorteilhaft von einer gemeinsamen Ölzuleitung 11 aus versorgt. Dafür ist der eingegossene Rohr-Führungskanal 5e in Längserstreckung des Zylinderkurbelgehäuses 1, also quer zu den Zylindern 12 angeordnet. Er verläuft hier im Bereich der Kurbelräume an den unteren Zylinderbereichen in gewissem Abstand zu den Zylinderaußenwandungen. Zu erkennen ist, daß der Führungskanal 5e an die Form der Zylinder 12 angepaßt ist, so daß sich ein "wellenartig" gebogener Verlauf ergibt. Die Ölzuleitung 11 ist in dem Ausführungsbeispiel im wesentlichen freiliegend ausgebildet. An mehreren Stellen ist sie örtlich schellenartig mit Gußmaterial des Bauteils umgossen. Diese Gußhalterungen 13 bewirken einen festen Verbund von Ölzuleitung 11 und Bauteil. Die Gußhalterungen 13 bilden hier auch die Montagestellen für die nicht dargestellten Spritzdüsen- Die Spritzdüsen werden nachträglich mechanisch in die Ölzuleitung 11 eingebracht und jeweils derart ausgebildet und angeordnet, daß sie Schmiermittel gerichtet in einen Zylinderraum unter einen Kolbenboden spritzen. Dadurch werden die Kolben zum einen gekühlt und zum anderen die Zylinderwandungen geschmiert.In the exemplary embodiment shown, a plurality of cylinders 12 are advantageously supplied by a common oil feed 11. For this purpose, the cast-in pipe guide channel 5e is arranged in the longitudinal extension of the cylinder crankcase 1, ie transversely to the cylinders 12. He runs here in the area of the crank chambers at the lower cylinder areas at a certain distance from the Zylinderaußenwandungen. It can be seen that the guide channel 5e is adapted to the shape of the cylinder 12, so that there is a "wave-like" curved course. The oil supply line 11 is formed in the embodiment substantially exposed. In several places it is locally looped with casting material of the component. These Gußhalterungen 13 cause a solid composite of oil supply 11 and component. The spray mounts 13 also form the mounting points for the spray nozzles, not shown here. The spray nozzles are subsequently mechanically introduced into the oil feed line 11 and respectively designed and arranged such that they inject lubricant directed into a cylinder space under a piston crown. This cools the pistons and lubricates the cylinder walls.

Durch den gebogenen, angepaßten Verlauf der Ölzuleitung 11 für die Kolbenkühlung und durch deren überwiegend freiliegende, nur örtlich von Gußmaterial umgebene Ausbildung wird gegenüber den bekannten, geradlinig in Gußmaterial gebohrten Ölzuleitungen eine wesentliche Gewichtsreduktion des Bauteiles und Einsparung an mechanischem Bearbeitungsaufwand erzielt.Due to the curved, adapted course of the oil supply line 11 for the piston cooling and by their predominantly exposed, only locally surrounded by casting training a substantial weight reduction of the component and saving of mechanical processing effort is achieved compared to the known, linearly drilled in casting material oil supply lines.

Selbstverständlich könnte die Ölzuleitung 11 auch einen anderen Verlauf bzw, eine andere Anordnung aufweisen oder auch über die gesamte Länge oder größere Bereiche vollkommen umgossen sein. Ferner könnten auch mehrere Führungskanäle 5e, die Ölzuleitungen 11 für die Kolbenkühlung bilden, eingegossen sein. Falls erforderlich, könnte die Ölzuleitung 11 in ihrem Verlauf auch vorteilhaft unterschiedliche Querschnittsformen aufweisen.Of course, the oil feed line 11 could also have a different course or, a different arrangement or be completely encapsulated over the entire length or larger areas. Furthermore, several guide channels 5e, which form oil supply lines 11 for the piston cooling, could also be cast. If necessary, the oil supply line 11 could also advantageously have different cross-sectional shapes in their course.

Fig. 11 zeigt ein anderes erfindungsgemäßes Zylinderkurbelgehäuse 1 als gegossenes Bauteil für eine Brennkraftmaschine, das mindestens einen Führungskanal 5f aufweist, der ein fluides Medium zu einer Bedarfstelle weiterleitet, in Form eines Rohres ausgebildet und beim Gießen des Zylinderkurbelgehäuses 1 mit eingegossen ist. Bei dem her gezeigten erfindungsgemäßen Zylinderkurbelgehäuse 1 bildet der als Rohr eingegossene Führungskanal 5f eine Druckölleitung 16 zu einem Zylinderkopf. Fig. 11 shows another inventive cylinder crankcase 1 as a cast component for an internal combustion engine, which has at least one guide channel 5f, which forwards a fluid medium to a demand site, formed in the form of a tube and is cast during casting of the cylinder crankcase 1 with. In the case of the cylinder crankcase 1 according to the invention, the guide channel 5f cast in as a tube forms a pressure oil line 16 to a cylinder head.

Die als Rohr eingegossene Druckölleitung 16 wird hier direkt von einem Hauptölkanal 4 mit Schmiermittel versorgt. Durch das nachträglich Bohren des Hauptölkanales 4 ist in dem gezeigten Ausführungsbeispiel die Anbindung des Führungskanales 5f an den 6lkreislauf hergestellt. Alternativ könnte die Druckölleitung 16 auch von einem anderen Bereich des Ölhaushaltes innerhalb des Zylinderkurbelgehäuses 1 aus gespeist werden, indem sie z.B. vor dem Eingießen in das Zylinderkurbelgehäuse mit einer anderen ölführenden Leitung zu einem Rohrverbund verbunden worden ist (vgl. Fig. 9) oder indem sie in eine Nut eines Lagers mündet. Zahlreiche weitere vorteilhafte Varianten sind möglich.The cast as a pipe pressure oil line 16 is supplied directly here by a main oil passage 4 with lubricant. By the subsequent drilling of the main oil passage 4, the connection of the guide channel 5f is made to the 6lkreislauf in the illustrated embodiment. Alternatively, the pressure oil line 16 could be fed from another area of the oil balance within the cylinder crankcase 1 by, for example, before being poured into the cylinder crankcase with another oil-carrying line has been connected to a composite pipe (see. Fig. 9 ) or by opening into a groove of a bearing. Numerous other advantageous variants are possible.

Aufgrund eines Hindernisses 17 - exemplarisch dargestellt sind in dem gezeigten Ausführungsbeispiel eine Gewindebohrung 18 und eine andere Aussparung 19 - weist der als Rohr eingegossene Führungskanal 5f einen an den Konturenverlauf angepaßten Verlauf auf und ist hier "kurvenartig" gebogen. Selbstverständlich sind in Abhängigkeit konstruktiver Gegebenheiten andere Verlaufsformen möglich. Die Druckölleitung 16 ist hier in Längserstreckung vollständig mit Gußmaterial umgeben. Alternativ könnte sie, je nach konstruktiven Gegebenheiten vorteilhaft auch derart angeordnet sein, daß sie streckenweise ganz oder teilweise freiliegend verläuft. Ferner könnte sie in ihrem Verlauf vorteilhaft unterschiedliche Querschnittsformen aufweisen, um z.B. Engstellen im Zylinderkurbelgehäuse 1 zu überwinden.Due to an obstacle 17 - shown by way of example in the embodiment shown, a threaded bore 18 and another recess 19 - the cast-in as a pipe guide channel 5f has a contour adapted to the course and is here "curved" bent. Of course, depending on structural conditions other forms of variation are possible. The pressure oil line 16 is completely surrounded here in longitudinal extension with casting material. Alternatively, it could, depending on the design conditions, advantageously also be arranged such that it runs partially or completely exposed in parts. Furthermore, it could advantageously have different cross-sectional shapes in its course, e.g. To overcome bottlenecks in the cylinder crankcase 1.

Die in das Zylinderkurbelgehäuse 1 eingegossene Druckölleitung 16 zum Zylinderkopf endet an einer Zylinderkopfanschlußfläche 20. Die zweckmäßige Anzahl an als Rohr eingegossenen Druckölleitungen 16 für die Ölversorgung des Zylinderkopfes bzw. der Zylinderköpfe über das Zylinderkurbelgehäuse 1 hängt von der jeweiligen Bestückung des Motors ab.The appropriate number of cast as a pipe pressure oil lines 16 for the oil supply of the cylinder head and the cylinder heads on the cylinder crankcase 1 depends on the respective assembly of the engine.

Die Realisierung der Zylinderkopfölversorgung in Form eines eingegossenen Rohres bzw. mehrerer eingegossener Rohre ist für den Konstrukteur sehr vorteilhaft, da er seine Ölführung nicht geradlinig - wie im Falle des mechanischen Einbringens durch Bohren -, sondern gebogen und damit an die räumlichen Gegebenheiten angepaßt einbringen kann.The realization of the cylinder head oil supply in the form of a cast-in pipe or several cast-in pipes is very advantageous for the designer, as he his oil supply is not straight - as in the case of mechanical introduction through Drilling - but curved and can bring in adapted to the spatial conditions.

Die Fig. 12a und 12b zeigen noch ein anderes vorteilhaftes Zylinderkurbelgehäuse 1 als gegossenes Bauteil für eine Brennkraftmaschine, das mindestens einen Führungskanal 5g aufweist, der ein fluides Medium zu einer Bedarfstelle weiterleitet, in Form eines Rohres ausgebildet und beim Gießen des Zylinderkurbelgehäuses 1 mit eingegossen ist. Dieser als Rohr eingegossene Führungskanal 5g bildet eine Kraftstoffleitung 24 für die Versorgung einer Kraftstoffpumpe mit Kraftstoff als fluidem Medium. Durch die gebogene Linie 25 ist in Fig. 12a angedeutet, daß die Darstellung der eingegossenen Kraftstoffleitung 24 in einer anderen Schnittebene als der Rest der Zeichnung liegt.The Fig. 12a and 12b show yet another advantageous cylinder crankcase 1 as a cast component for an internal combustion engine, which has at least one guide channel 5g, which forwards a fluid medium to a point of need, formed in the form of a tube and cast in the casting of the cylinder crankcase 1 with. This guide channel 5g cast in as a tube forms a fuel line 24 for supplying a fuel pump with fuel as a fluid medium. Due to the curved line 25 is in Fig. 12a indicated that the representation of the cast-in fuel line 24 is located in a different sectional plane than the rest of the drawing.

Zu erkennen ist, daß hier vorteilhaft mehrere Führungskanäle 5g jeweils als Rohr in eine Außenwand 26 des Zylinderkurbelgehäuses 1 eingegossen sind, und zwar verlaufen sie in Längserstreckung des Zylinderkurbelgehäuses 1 (vgl. Fig. 12b). Dabei handelt es sich bei der mittleren Kraftstoffleitung 24 in dem gezeigten Beispiel um eine Kraftstoff-Zufuhrleitung und bei den äußeren Kraftstoffleitungen 24 jeweils um eine Kraftstoff-Rücklaufleitung. Selbstverständlich sind andere Anzahlen eingegossener Leitungen bzw. andere Bewegungen der Leitungen möglich. Ferner ist in Fig. 12a eine Aussparung 27 dargestellt, in die später eine Kraftstoffpumpe eingesetzt wird. Wie in dem ausschnittsweisen Längsschnitt in Fig. 12b zu erkennen ist, sind über die Länge der mittleren Kraftstoffleitung 24 mehrere Aussparungen 27 für Kraftstoffpumpen vorgesehen, wobei die Anzahl von der Zylinderzahl des jeweiligen Motors abhängt.It can be seen that here advantageously several guide channels 5g are each cast as a tube in an outer wall 26 of the cylinder crankcase 1, and that they extend in the longitudinal extent of the cylinder crankcase 1 (see. Fig. 12b ). Here, in the example shown, the middle fuel line 24 is a fuel supply line and the outer fuel lines 24 are each a fuel return line. Of course, other numbers of cast-in lines or other movements of the lines are possible. Furthermore, in Fig. 12a a recess 27 shown in the later a fuel pump is used. As in the partial longitudinal section in Fig. 12b can be seen, a plurality of recesses 27 are provided for fuel pumps over the length of the central fuel line 24, wherein the number depends on the number of cylinders of the respective engine.

Im Zuge von Nachbearbeitungsmaßnahmen an dem gegossenen Bauteil wird in den Bereichen der Aussparungen 27 für die Kraftstoffpumpen jeweils die Kraftstoff-Zufuhrleitung angeschnitten bzw, durchtrennt und dadurch die Verbindungen zwischen Führungskanal 5g und Pumpen hergestellt. Öffnungen in den Kraftstoff-Rücklaufleitungen werden später ebenfalls mechanisch eingebracht. Durch eine Kraftstoffpumpe wird jeweils Kraftstoff aus der Zufuhrleitung entnommen und durch eine Anschlußleitung zu einer Einspritzdüse in einem Zylinderkopf gepumpt.In the course of post-processing measures on the cast component, the fuel supply line is respectively cut or cut in the regions of the recesses 27 for the fuel pumps, thereby producing the connections between the guide channel 5g and pumps. Openings in the fuel return lines later also become mechanical brought in. By a fuel pump each fuel is removed from the supply line and pumped through a connection line to an injection nozzle in a cylinder head.

Gemäß dem Stand der Technik werden Kraftstoffleitungen in die Außenwand eines Zylinderkurbelgehäuses mechanisch als lange, gerade Bohrungen eingebracht. Das Eingießen einer oder mehrerer Kraftstoffleitung(en) als Rohr mit dem erfindungsgemäßen Herstellungsverfahren bietet die vorteilhafte Möglichkeit, daß der Führungskanal, falls erforderlich, gebogen sein kann. Er kann vorteilhaft überwiegend oder abschnittsweise freiliegend verlaufen, auch nicht runde Querschnittsformen aufweisen oder in seinem verlauf unterschiedliche Querschnittsformen haben. Dadurch ist z.B. eine Reduktion der Bauteilwandungsstärke möglich, was zu Einsparungen an Material und Gewicht sowie zu verringerten Herstellungskosten führt. Ferner kann der Verlauf der Leitungen optimiert werden. Da die Kraftstoffleitung(en) 24 im fertig gegossenen Bauteil bereits integriert vorliegen, ist der Arbeitsaufwand darüber hinaus insgesamt erheblich reduziert.According to the prior art, fuel lines are mechanically introduced into the outer wall of a cylinder crankcase as long, straight holes. The pouring of one or more fuel pipe (s) as a pipe with the manufacturing method according to the invention offers the advantageous possibility that the guide channel, if necessary, can be bent. It may advantageously be exposed predominantly or in sections, may not have round cross-sectional shapes or have different cross-sectional shapes in its course. Thereby, e.g. a reduction in the component wall thickness possible, resulting in savings in material and weight and reduced manufacturing costs. Furthermore, the course of the lines can be optimized. Since the fuel line (s) 24 are already integrated in the finished cast component, the workload is also significantly reduced overall.

In dem in Fig. 12a und 12b gezeigten Ausführungsbeispiel eines vorteilhaften Zylinderkurbelgehäuses 1 ist zu erkennen, daß hier nur die Kraftstoff leitungen 24 als Rohre in das Gehäuse eingegossen sind. Die in einer Schottwand 23 verlaufenden Führungskanäle 5a, 5b für die Versorgung von Nockenwellenlager 3 und Kurbelwellenlager 2 mit Öl sowie ein Zufuhrkanal 5c zum Zylinderkopf sind hier nachträglich mechanisch durch Bohren eingebracht.In the in Fig. 12a and 12b shown embodiment of an advantageous cylinder crankcase 1 can be seen that here only the fuel lines 24 are poured as tubes into the housing. The running in a bulkhead 23 guide channels 5a, 5b for the supply of camshaft bearing 3 and crankshaft bearing 2 with oil and a supply channel 5c to the cylinder head are here introduced later mechanically by drilling.

Die vorstehend beschriebenen erfindungsgemäßen und vorteilhaften Ausführungen an den zwei erfindungsgemäßen Zylinderkurbelgehäuse-Typen - und zwar a) Ölversorgung von Kurbelwellenlager bzw. Nockenwellenlager durch mehrere als Rohr eingegossene Führungskanäle (vgl. Fig. 3, 4 und 7), b) Ölversorgung für die Kolbenkühlung durch mindestens einen als Rohr eingegossenen Führungskanal (vgl. Fig. 10), c) Ölversorgung des Zylinderkopfes bzw. der Zylinderköpfe durch mindestens einen als Rohr eingegossenen Führungskanal (vgl. Fig. 9, 11), d) Vorsehen einer Kraftstoffleitung durch mindestens einen als Rohr eingegossenen Führungskanal (vgl. Fig. 12) - können vorteilhaft auch in einer zweckmäßigen Kombination an demselben Zylinderkurbelgehäuse realisiert sein.The above-described inventive and advantageous embodiments of the two cylinder crankcase types according to the invention - namely a) oil supply of crankshaft bearings or camshaft bearing by several cast-in as a guide channels (see. Fig. 3 . 4 and 7 ), b) oil supply for the piston cooling by at least one guide channel cast in as a pipe (cf. Fig. 10 ), c) oil supply of the cylinder head or the cylinder heads by at least one cast-in as a pipe guide channel (see. Fig. 9 . 11 ), d) providing a Fuel line through at least one cast as a pipe guide channel (see. Fig. 12 ) - Can be advantageously realized in an appropriate combination of the same cylinder crankcase.

Ein Beispiel einer derartigen vorteilhaften Kombination zeigt Fig. 13. Dort ist ein Zylinderkurbelgehäuse 1 zu erkennen, bei dem die Versorgung von Kurbelwellenlagern 2 und Nockenwellenlagern 3 mit Schmiermittel durch in die Schottwände 23 eingegossene gebogene Führungskanäle 5d verwirklicht ist (entsprechend dem in den Fig. 3 und 4 beschriebenen Ausführungsbeispiel). Zusätzlich ist hier ein als Rohr eingegossener Führungskanal 5c vorgesehen, der eine Druckölleitung 16 zu einem Zylinderkopf bildet. Anders als in dem in Fig. 11 gezeigten Ausführungsbeispiel wird dieser nicht direkt vom Hauptölkanal 4 aus mit Öl versorgt, sondern zweigt von dem eingegossenen Führungskanal 5d ab. Darüber hinaus sind als Rohre eingegossene Führungskanäle 5g vorhanden, die Kraftstoffleitungen 24 (Zufuhrleitung und Rücklaufleitungen) für die Versorgung einer Kraftstoffpumpe bilden (entsprechend dem Ausführungsbeispiel von Fig. 12).An example of such an advantageous combination shows Fig. 13 , There is a cylinder crankcase 1 can be seen, in which the supply of crankshaft bearings 2 and 3 camshaft bearings with lubricant is realized by cast into the bulkheads 23 curved guide channels 5d (corresponding to that in the Fig. 3 and 4 described embodiment). In addition, here a cast-in as a pipe guide channel 5c is provided, which forms a pressure oil pipe 16 to a cylinder head. Unlike in the Fig. 11 shown embodiment, this is not supplied directly from the main oil passage 4 with oil, but branches off from the cast-guide channel 5d. In addition, guide tubes 5g cast in as tubes are provided, which form fuel lines 24 (supply line and return lines) for the supply of a fuel pump (corresponding to the exemplary embodiment of FIG Fig. 12 ).

Zahlreiche weitere Kombinationen sind vorteilhaft zu verwirklichen, z.B. eine eingegossene Lagerversorgung über gesonderte Verbindungsrohre 7 i.V.m. einer eingegossenen Zuleitung 11 für die Kolbenkühlung; eine eingegossene Zuleitung 11 für die Kolbenkühlung i.V.m. einer eingegossenen Kraftstoffleitung 24; eine eingegossene Druckölleitung 16 zum Zylinderkopf i.V.m. einer eingegossenen Kraftstoffleitung 24 usw.Numerous other combinations are advantageous, e.g. a cast-in stock supply via separate connecting pipes 7 i.V.m. a cast supply line 11 for the piston cooling; a cast-in supply line 11 for the piston cooling i.V.m. a cast-in fuel line 24; a cast-in pressure oil line 16 to the cylinder head i.V.m. a cast-in fuel line 24, etc.

Die für die Ölversorgung und die Kraftstoffversorgung dargestellten Führungskanäle 5 können entsprechend auch auf Führungskanäle 5 für ein anderes Medium übertragen werden.The guide channels 5 shown for the oil supply and the fuel supply can be transferred accordingly to guide channels 5 for another medium.

Die Erfindung wurde vorliegend für ein Zylinderkurbelgehäuse 1 beschrieben, wobei das Zylinderkurbelgehäuse einteilig oder mehrteilig ausgebildet sein kann.The invention has been described herein for a cylinder crankcase 1, wherein the cylinder crankcase may be formed integrally or in several parts.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Zylinderkurbelgehäusecylinder crankcase
22
Kurbelwellenlagercrankshaft bearings
33
Nockenwellenlagercamshaft bearings
44
HauptölkanalMain oil
55
Führungskanal (allgemein)Guide channel (general)
5a5a
Führungskanalguide channel
5b5b
Führungskanalguide channel
5c5c
Führungskanalguide channel
5d5d
Führungskanalguide channel
5e5e
Führungskanalguide channel
5f5f
Führungskanalguide channel
5g5g
Führungskanalguide channel
66
ZugangAccess
77
Verbindungsrohrconnecting pipe
7a7a
Abschnitt von 7Section of 7
7b7b
Abschnitt von 7Section of 7
88th
Biegungbend
99
Rohrsystempipe system
9a9a
HauptführungskanalMain duct
9b9b
NebenführungskanalIn addition to the guide channel
1010
Kernstützecore support
1111
Ölzuleitung für die KolbenkühlungOil supply for the piston cooling
1212
Zylindercylinder
1313
GußhalterungGußhalterung
1414
ÖlwannenanschlußflächeOil pan pad
1515
Stirnseite von 1Front side of 1
1616
DruckölleitungPressure oil line
1717
Hindernisobstacle
1818
Gewindebohrungthreaded hole
1919
Aussparungrecess
2020
ZylinderkopfanschlußflächeCylinder head pad
2121
Einsenkungdepression
2222
Aussparungrecess
2323
Schottwandbulkhead
2424
KraftstoffleitungFuel line
2525
gebogene Liniecurved line
2626
Außenwandouter wall
2727
Aussparung für KraftstoffpumpeRecess for fuel pump

Claims (25)

  1. A cast part for an internal combustion engine, the part being a cylinder crankcase (1), which has at least one guide duct (5, 5d), which is implemented in the form of a tube and is embedded inside the part when the latter is cast and which leads a fluid medium to a required location, the fluid medium being oil and the at least one guide duct (5, 5d) being an oil supply line to a crankshaft bearing (2) and/or camshaft bearing (3) to be lubricated as the required location,
    characterized in that
    the cylinder crankcase (1) comprises multiple embedded guide ducts (5, 5d) which are each introduced as an individual connection tube (7) for guiding the medium, the connection tubes (7) being each bent and each having a bend (8) from which one section (7a) runs to a crankshaft bearing (2) and another section (7b) runs to a camshaft bearing (3), the bends (8) of the embedded connection tubes (7) each being located at positions at which a main oil duct (4) subsequently introduced through drilling runs, so that by introducing the main oil duct (4), the connection tubes (7) are drilled through and a connection of the connection tubes (7) to the main oil duct (4) is thus produced in each case.
  2. The cast part according to Claim 1,
    characterized in that
    the connection tubes (7) are implemented as tailored to the contour course, advantageously bent "like a suitcase handle".
  3. The cast part according to Claim 1 or 2,
    characterized in that
    the cylinder crankcase (1) comprises at least one guide duct (5c) for oil, embedded as a tube, which leads to a cylinder head.
  4. The cast part according to Claim 3,
    characterized in that
    the at least one guide duct (5c) to the cylinder head branches off from an individual connection tube (7).
  5. The cast part according to Claim 3,
    characterized in that
    the at least one guide duct (5c) to the cylinder head is a separately embedded tube which is supplied with oil directly from a drilled main oil duct.
  6. The cast part according to Claim 3,
    characterized in that
    the at least one guide duct (5c) to the cylinder head leads in the region of a bearing into a groove of a bearing ring and is supplied with oil from there.
  7. The cast part according to one of the preceding Claims,
    characterized in that
    the cylinder crankcase (1) comprises at least one guide duct (5e) embedded as a tube, which forms a supply line (11) for piston cooling.
  8. The cast part according to Claim 7,
    characterized in that
    the supply line (11) for piston cooling is implemented as essentially exposed and is locally enclosed with cast material of the part, like a "shell", at multiple locations so that cast supports (13) are formed and the cast supports (13) are mounting points for spray nozzles, which can be subsequently mechanically introduced into the supply line (11) for piston cooling and which are each implemented and positioned in such a way that they spray lubricant directed into a cylinder chamber below a piston floor.
  9. The cast part according to Claim 8,
    characterized in that
    the supply line (11) for piston cooling is positioned in the longitudinal extension of the cylinder crankcase (1) and multiple cylinders (12) are supplied with oil from a shared supply line (11).
  10. The cast part according to one of the preceding Claims,
    characterized in that
    the cylinder crankcase (1) comprises at least one guide duct (5g) embedded as a tube, which forms a fuel line (24) for supplying a fuel pump.
  11. The cast part according to Claim 10,
    characterized in that
    the fuel line (24) is positioned in the longitudinal extension of the cylinder crankcase (1) and the fuel line (24) is a fuel supply line and multiple openings (27) for fuel pumps, into which fuel pumps are inserted later, are provided in the cylinder crankcase (1) over the length of the fuel supply line, the fuel supply line being cut and/or cut through in the regions of each of the openings (27) in the course of finishing measures on the cast cylinder crankcase (1) and the connections between guide duct (5g) and fuel pumps being thus produced.
  12. The cast part according to Claim 11,
    characterized in that
    a fuel line (24) embedded as a tube is a fuel return line.
  13. A cast part for an internal combustion engine, the part being a cylinder crankcase (1), which has at least one guide duct (5, 5f), which is implemented in the form of a tube and is embedded inside the part when the latter is cast and which leads a fluid medium to a required location, the fluid medium being oil,
    characterized in that
    the at least one guide duct (5f) embedded as a tube forms a pressurized oil line (16) to a cylinder head and
    one end of the pressurized oil line (16) is positioned in a region in which the main oil duct (4) subsequently introduced through drilling runs so that the connection of the guide duct (5f) to the oil loop is produced through the subsequent drilling of the main oil duct (4), and the other end of the pressurized oil line (16) ends at a cylinder head connection surface (20).
  14. The cast part according to Claim 13,
    characterized in that
    the pressurized oil line (16) has a bent course tailored to the contour course of the cylinder crankcase (1).
  15. The cast part according to Claim 13 or 14,
    characterized in that
    the cylinder crankcase (1) comprises at least one guide duct (5g) embedded as a tube, which forms a fuel line (24) for supplying a fuel pump.
  16. The cast part according to Claim 15,
    characterized in that
    the fuel line (24) is positioned in the longitudinal extension of the cylinder crankcase (1) and the fuel line (24) is a fuel supply line and multiple openings (27) for fuel pumps, into which fuel pumps are inserted later, are provided in the cylinder crankcase (1) over the length of the fuel supply line, the fuel supply line being cut and/or cut through in the regions of each of the openings (27) in the course of finishing measures on the cast cylinder crankcase (1) and the connections between guide duct (5g) and fuel pumps being thus produced.
  17. The cast part according to Claim 16,
    characterized in that
    a fuel line (24) embedded as a tube is a fuel return line.
  18. The cast part according to one of the Claims 13 to 17,
    characterized in that
    the cylinder crankcase (1) comprises at least one guide duct (5e) embedded as a tube, which forms a supply line (11) for piston cooling, and the supply line (11) for piston cooling is implemented as essentially exposed and is locally enclosed with cast material of the part, like a "shell", at multiple locations so that cast supports (13) are formed and the cast supports (13) are mounting points for spray nozzles, which can be subsequently mechanically introduced into the supply line (11) for piston cooling and which are each implemented and positioned in such a way that they spray lubricant directed into a cylinder chamber below a piston floor.
  19. The cast part according to Claim 18,
    characterized in that
    the supply line (11) for piston cooling is positioned in the longitudinal extension of the cylinder crankcase (1) and multiple cylinders (12) are supplied with oil from a shared supply line (11).
  20. The cast part according to one of the preceding Claims,
    characterized in that
    at least one embedded guide duct (5, 5c, 5d, 5e, 5f, 5g) is positioned in such a way that it runs partially or completely exposed in some regions.
  21. The cast part according to one of the preceding Claims,
    characterized in that
    at least one embedded guide duct (5, 5c, 5d, 5e, 5f, 5g) has different cross-sectional shapes in its course.
  22. A method for manufacturing a cast part for an internal combustion engine, the part being a cylinder crankcase (1), which has at least one guide duct (5), which leads a fluid medium to a required location, wherein, to form the at least one guide duct (5), a tube having the desired course is installed in a casting mold required for casting or is introduced into a casting core or is incorporated into a lost model and/or into its form medium cavity filler and subsequently the part is cast using the casting method to be employed in each case,
    characterized in that
    in order to form oil supply lines to the required locations crankshaft bearing (2) and/or camshaft bearing (3), multiple individual connection tubes (7) are embedded inside the cylinder crankcase (1) as guide ducts (5, 5d) for guiding the medium,
    the embedded connection tubes (7) being drilled through when introducing the main oil duct (4) by means of drilling and the connection of the guide ducts (5, 5d) to the main oil duct (4) being thus produced, so that oil reaches the crankshaft bearings (2) and/or camshaft bearings (3) from the main oil duct (4) via the connection tubes (7) in engine operation.
  23. The method according to Claim 22,
    characterized in that
    the part is cast in a casting method using a lost mold.
  24. The method according to Claim 22,
    characterized in that
    the part is cast in a casting method using a permanent mold.
  25. The method according to Claim 22,
    characterized in that
    the part is cast in the lost foam method.
EP03767447A 2002-11-26 2003-11-25 Cast part for an internal combustion engine Expired - Lifetime EP1570167B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09001655.1A EP2063094B1 (en) 2002-11-26 2003-11-25 Moulded component for a combustion engine

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10255284 2002-11-26
DE10255284 2002-11-26
DE10304971 2003-02-06
DE10304971A DE10304971C5 (en) 2002-11-26 2003-02-06 Poured component for an internal combustion engine
PCT/DE2003/003901 WO2004048765A1 (en) 2002-11-26 2003-11-25 Cast part for an internal combustion engine

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP09001655.1A Division EP2063094B1 (en) 2002-11-26 2003-11-25 Moulded component for a combustion engine

Publications (2)

Publication Number Publication Date
EP1570167A1 EP1570167A1 (en) 2005-09-07
EP1570167B1 true EP1570167B1 (en) 2009-02-25

Family

ID=32395013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03767447A Expired - Lifetime EP1570167B1 (en) 2002-11-26 2003-11-25 Cast part for an internal combustion engine

Country Status (4)

Country Link
US (1) US7387102B2 (en)
EP (1) EP1570167B1 (en)
AU (1) AU2003291943A1 (en)
WO (1) WO2004048765A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002057A1 (en) * 2009-03-31 2010-10-07 Zf Friedrichshafen Ag Die-casting part comprises a recasted tube with tube ends, whose front area has an interval to cast skin, arranged in the cast part, where the tube ends are surrounded by a closure cap having an extension extending itself towards outside

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004037054A1 (en) * 2004-07-30 2006-03-23 Daimlerchrysler Ag Internal combustion engine with an oil suction pipe
WO2006061046A1 (en) * 2004-12-29 2006-06-15 Hydro Aluminium Deutschland Gmbh Casting mould for casting a motor block for an internal combustion engine, motor block for an internal combustion engine and use of a hollow profile
DE102007023192A1 (en) * 2006-09-08 2008-03-27 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Air compressor of a pneumatic system in a vehicle, comprises a piston pump that is fitted with a piston and a crankshaft, which are located in a crankcase, and a channel present in the crankcase for the guidance of coolant
DE102007056430A1 (en) * 2007-11-23 2009-05-28 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Method for producing a pneumatic device of a vehicle from plastic parts
US7814879B2 (en) * 2008-04-23 2010-10-19 Techtronic Outdoor Products Technology Limited Monolithic block and valve train for a four-stroke engine
BRPI0823380B1 (en) * 2008-12-17 2020-06-02 Volvo Lastvagnar Ab CASTED STEERING ARTICULATION FOR A VEHICLE AND VEHICLE UNDERSTANDING CASTED STEERING ARTICULATION
FR2943264B1 (en) * 2009-03-17 2012-11-16 Hispano Suiza Sa MOLDED CASTER WITH REPORTED PIPES
WO2013167210A1 (en) * 2012-05-10 2013-11-14 HDO Druckguss- und Oberflächentechnik GmbH Diecast part, and method for the production of a diecast part
CN102806311B (en) * 2012-08-30 2014-05-14 贵州安吉航空精密铸造有限责任公司 Forming process of complicated titanium alloy investment casting pipeline
DE102012110592A1 (en) * 2012-11-06 2014-05-08 Martinrea Honsel Germany Gmbh A method of manufacturing a cylinder crankcase and a casting block assembly for a cylinder crankcase
US9303595B2 (en) 2013-08-27 2016-04-05 Deere & Company Exhaust gas recirculation cooler mount
AT514804B1 (en) * 2013-12-10 2015-04-15 Steyr Motors Gmbh Internal combustion engine with oil channels
US10036346B2 (en) * 2015-09-10 2018-07-31 Ford Global Technologies, Llc Lubrication circuit and method of forming
CN106050351B (en) * 2016-08-15 2018-10-16 潍柴动力股份有限公司 A kind of internal combustion engine and its main bearing lubrication system
US10858982B2 (en) * 2018-04-19 2020-12-08 Ford Global Technologies, Llc Piston cooling system
DE102020108331A1 (en) 2020-03-26 2021-09-30 Bayerische Motoren Werke Aktiengesellschaft Media duct arrangement for an internal combustion engine, internal combustion engine with a media duct arrangement, motor vehicle with an internal combustion engine and method for producing a media duct arrangement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19652049C1 (en) * 1996-12-13 1998-07-02 Hatz Motoren Internal combustion engine and process for its manufacture

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966146A (en) 1957-10-29 1960-12-27 Schweitzer And Hussmann Air-cooled, port-scavenged engine
DE2501772A1 (en) 1975-01-17 1976-07-22 Kloeckner Humboldt Deutz Ag CRANKCASE FOR MULTI-CYLINDER PISTON ENGINEERING MACHINES
JPS5519608A (en) 1978-07-24 1980-02-12 Nissan Motor Co Ltd Seat for vehicle
US4237847A (en) 1979-03-21 1980-12-09 Cummins Engine Company, Inc. Composite engine block having high strength to weight ratio
DE3243377A1 (en) * 1982-11-24 1984-08-23 GMB Giesserei & Maschinenbau Bodan AG, Romanshorn CASTING PIECE WITH MOLDED CHANNEL
DE3300924A1 (en) 1983-01-13 1984-07-19 Volkswagenwerk Ag, 3180 Wolfsburg Device for the cooling of cylinder lands
DE3723468A1 (en) 1987-07-16 1989-01-26 Kloeckner Humboldt Deutz Ag Cylinder head for an internal combustion engine
US4852534A (en) * 1988-06-21 1989-08-01 Amaral David C Oil restrictor system
US4969263A (en) * 1989-04-18 1990-11-13 Tecumseh Products Company Method of making a cast engine cylinder having an internal passageway
US4922863A (en) * 1989-04-18 1990-05-08 Tecumseh Products Company Cast engine cylinder having an internal passageway and method of making same
US5000244A (en) 1989-12-04 1991-03-19 General Motors Corporation Lost foam casting of dual alloy engine block
US4993380A (en) * 1990-01-02 1991-02-19 Hsu Shin I Lubrication mechanism of engine cylinder
DE4335492A1 (en) 1993-10-19 1995-04-20 Opel Adam Ag Housing for an internal combustion engine with V-shaped cylinders
DE4341040A1 (en) 1993-12-02 1995-06-08 Bruehl Eisenwerk Engine block with cast-in channel arrangement and method for its production
FR2727727A1 (en) * 1994-12-02 1996-06-07 Renault Crank case bearings for IC engines
DE19548811A1 (en) * 1995-12-27 1997-07-03 Mahle Gmbh Plunger with cooling channel
JPH09287517A (en) * 1996-04-22 1997-11-04 Unisia Jecs Corp Piston for internal combustion engine and its metal mold
DE19716513C2 (en) * 1997-04-19 1999-02-11 Mtu Friedrichshafen Gmbh Fuel injection system for an internal combustion engine with a common rail
US5979298A (en) * 1997-05-08 1999-11-09 Zellner Pistons, Llc Cooling gallery for pistons
DE19818589C2 (en) 1998-04-25 2000-04-20 Daimler Chrysler Ag Internal combustion engine
US6158400A (en) 1999-01-11 2000-12-12 Ford Global Technologies, Inc. Internal combustion engine with high performance cooling system
US6273050B1 (en) * 1999-10-21 2001-08-14 Wen-Chang Ko Two-stroke cylinder
JP3233358B2 (en) * 2000-01-14 2001-11-26 日本軽金属株式会社 How to insert a pipe
DE10015709B4 (en) 2000-03-29 2011-08-11 KS Kolbenschmidt GmbH, 74172 Piston with an annular cooling channel
US6295963B1 (en) 2000-10-09 2001-10-02 Brunswick Corporation Four cycle engine for a marine propulsion system
US6513480B1 (en) * 2001-09-20 2003-02-04 General Motors Corporation Pick-up tube for hydraulically-actuated valve deactivation
DE10211053A1 (en) * 2002-03-13 2003-10-09 Vaw Ver Aluminium Werke Ag Process for casting cylinder crankcases and core package for casting cylinder crankcases, core box and core package
JP3916056B2 (en) * 2002-04-11 2007-05-16 いすゞ自動車株式会社 cylinder head
US7040454B2 (en) * 2003-06-06 2006-05-09 Kawasaki Jukogyo Kabushiki Kaisha Dry-sump lubrication type four-stroke cycle engine
DE10340157B4 (en) * 2003-09-01 2008-10-02 Audi Ag Device for media guidance in a cylinder crankcase

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19652049C1 (en) * 1996-12-13 1998-07-02 Hatz Motoren Internal combustion engine and process for its manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002057A1 (en) * 2009-03-31 2010-10-07 Zf Friedrichshafen Ag Die-casting part comprises a recasted tube with tube ends, whose front area has an interval to cast skin, arranged in the cast part, where the tube ends are surrounded by a closure cap having an extension extending itself towards outside

Also Published As

Publication number Publication date
WO2004048765A1 (en) 2004-06-10
EP1570167A1 (en) 2005-09-07
US20060096567A1 (en) 2006-05-11
AU2003291943A1 (en) 2004-06-18
US7387102B2 (en) 2008-06-17

Similar Documents

Publication Publication Date Title
EP1570167B1 (en) Cast part for an internal combustion engine
EP2063094B1 (en) Moulded component for a combustion engine
DE3010635C2 (en)
EP1843029B1 (en) Composite cylinder case
EP1919644B1 (en) Method for producing a cast component with a cast-in pipe
DE19810464C1 (en) Crankcase for internal combustion engine
DE19600566C1 (en) Cylinder crank casing for multicylinder internal combustion engine
DE2501605A1 (en) CONSTRUCTION OF AN COMBUSTION ENGINE
EP3339617A1 (en) Cylinder housing, method for producing a cylinder housing and casting core
AT514076B1 (en) Motor housing of an internal combustion engine and thus equipped internal combustion engine
EP1676989B1 (en) Internal combustion engine with a piston cooling device
DE19716702C2 (en) Metallic mold arrangement for a reciprocating piston and reciprocating piston, in particular for internal combustion engines
EP0883740A1 (en) Internal combustion engine and method for manufacturing same
EP1790865B1 (en) Cast hollow crankshaft
EP2636468A2 (en) Device for manufacturing a cylinder crankcase
DE10340157B4 (en) Device for media guidance in a cylinder crankcase
EP1101904B1 (en) Piston machine and distributor element
DE112004002493T5 (en) Simplified engine architecture and engine assembly
DE19841102C1 (en) Crankcase for internal combustion engine contains cylinder liners for formation of cylinders, liners in upper area having at least one reinforcement component with holes corresponding at least approximately to outer diameter of liners
DE102004026058B3 (en) Cast hollow crankshaft
DE10222757B4 (en) Cylinder crankcase of an internal combustion engine
DE10121861B4 (en) Made of light metal alloy engine element and reinforcing element
DE102009051269A1 (en) Die casting method for producing engine blocks made of light metal for a liquid-cooled multi-cylinder combustion engine, comprises arranging a slider element in a die casting mold before filling the mold with light metal casting material
DE10339573A1 (en) Combined cylinder block and upper part of crankcase is for internal combustion engine and has solid connecting pieces between cylinder bores at top and cooling channels extending all round bores lower down
DE102012023417A1 (en) Storage arrangement for crankshaft of crankcase in internal combustion engine, has bearing seat partially delimiting first bearing segment and second bearing segment that are connected to each other to form bearing seat

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050623

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20060324

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FRITZ WINTER EISENGIESSEREI GMBH & CO. KG

17Q First examination report despatched

Effective date: 20060324

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50311228

Country of ref document: DE

Date of ref document: 20090409

Kind code of ref document: P

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2321084

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090225

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090225

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090225

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090812

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090225

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090225

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090225

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090225

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090225

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090525

26N No opposition filed

Effective date: 20091126

BERE Be: lapsed

Owner name: FRITZ WINTER EISENGIESSEREI G.M.B.H. & CO. KG

Effective date: 20091130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091130

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090526

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090225

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20151112

Year of fee payment: 13

Ref country code: IT

Payment date: 20151124

Year of fee payment: 13

Ref country code: DE

Payment date: 20151119

Year of fee payment: 13

Ref country code: GB

Payment date: 20151123

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20151124

Year of fee payment: 13

Ref country code: ES

Payment date: 20151124

Year of fee payment: 13

Ref country code: SE

Payment date: 20151123

Year of fee payment: 13

Ref country code: NL

Payment date: 20151124

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50311228

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20161201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20161125

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161125

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161125

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161126

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20181120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161125