EP1590615B1 - Charge air cooler - Google Patents

Charge air cooler Download PDF

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Publication number
EP1590615B1
EP1590615B1 EP03789017A EP03789017A EP1590615B1 EP 1590615 B1 EP1590615 B1 EP 1590615B1 EP 03789017 A EP03789017 A EP 03789017A EP 03789017 A EP03789017 A EP 03789017A EP 1590615 B1 EP1590615 B1 EP 1590615B1
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EP
European Patent Office
Prior art keywords
air cooler
charge air
exchanging heat
housing
medium
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
EP03789017A
Other languages
German (de)
French (fr)
Other versions
EP1590615A1 (en
Inventor
Daniel Hendrix
Florian Moldovan
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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Publication date
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1590615A1 publication Critical patent/EP1590615A1/en
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Publication of EP1590615B1 publication Critical patent/EP1590615B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases

Definitions

  • the invention relates to a charge air cooler for exchanging heat, in particular for the cooling of the combustion air of internal combustion engines in motor vehicles.
  • Such intercoolers are used to cool the combustion air of an internal combustion engine.
  • combustion air which has a higher temperature level by compression, passed through the device and cooled by means of a refrigerant, which also flows through the device.
  • a refrigerant which also flows through the device.
  • DE 199 27 607 are known devices in which the combustion air is passed through a plurality of tubes through the device for exchanging heat and which have a supply line and a discharge for a refrigerant, whereby the tubes are flowed around by this refrigerant.
  • the tube ends are widened in the prior art, so that the tubes are each spaced from each other.
  • the DE 199 27 607 A1 discloses a charge air cooler having tubes with flared ends received in a housing to save the floor.
  • the US 2003/001 04 79 A1 discloses an exhaust gas cooler with a two-part housing with tube plates which engage around the ends of the housing.
  • the object of the present invention is therefore to provide an improved intercooler, which is particularly inexpensive to produce.
  • the present invention is an intercooler, in particular for the cooling of the combustion air of internal combustion engines in motor vehicles, which at least one supply and discharge of a first medium, such as a refrigerant, coolant or other means and at least one supply and discharge of a second medium , such as combustion air, exhaust gas or other medium. Further, at least one flow means for the refrigerant and at least one flow means for the combustion air is provided, wherein the flow paths of the flow means of a refrigerant and the combustion air are separated from each other and the flow directions are at least partially different.
  • a first medium such as a refrigerant, coolant or other means
  • a second medium such as combustion air, exhaust gas or other medium
  • a flow device is understood to mean a device which spatially delimits the flowing medium, such as, for example, tubes, in particular flat tubes and the like.
  • a device can have several components.
  • flow device is also understood to mean the intermediate space between two bodies, which is a flow path forms, if in this space a medium can flow.
  • the area between two flat tubes is to be regarded as a flow device.
  • a refrigerant is generally any gaseous or liquid medium to understand, which is a lower temperature than the medium to be cooled, d. H. having the combustion air.
  • a refrigerant is in particular, water, possibly with additives such as glycol, in particular from the refrigeration cycle, into consideration, so that in the following instead of refrigerant and water is mentioned.
  • the flow path of a medium is to be understood as meaning the path within a flow device which the refrigerant covers, for example, between the feed and the discharge within the device for cooling combustion air.
  • the flow direction is the flow direction, which occupies the medium, that is, the refrigerant or the combustion air within the flow means for cooling combustion air, at least over a certain period of time.
  • the invention is further characterized in that the flow means are accommodated in an at least two-part profiled housing, wherein a first housing part in cross section has a substantially U-shaped basic shape, which by a second, substantially flat housing part on the open side of the first housing part is closed.
  • the housing of the device further has on at least two opposite sides at least one inlet and at least one outlet flange for the combustion air.
  • the flow means for the combustion air and / or the refrigerant are by means of at least one frame means, which in the housing is received, held spaced apart in at least one area.
  • housing is not made of a base body; but has two separate parts which are joined together and in particular connected.
  • edges to which the housing parts are joined together not linear, but differ in a certain way thereof.
  • notches or grooves may be provided in a housing part, in which projections of the second housing part engage.
  • projections may be provided in any geometric shape, which engage in corresponding bulges of the corresponding other housing part.
  • a U-shaped basic shape is understood to mean those shapes whose cross-section is essentially described by a rectangle in which one of the four sides is missing.
  • the individual corners may also be rounded or one side may be circular or elliptical.
  • the course of the individual page does not necessarily have to be linear.
  • U-shaped in the present invention also describes shapes in which the side omitted in cross-section is a longer side of the rectangle.
  • a flat housing part is understood to mean a housing part which extends essentially in two dimensions, that is to say essentially forms a plane.
  • a frame device is understood as any device which is suitable for keeping flow devices at a predefined distance from one another.
  • At least a part of the two-part housing on the supply and the discharge for the refrigerant is provided.
  • the supply and discharge for the refrigerant are arranged on the same side of the housing.
  • the supply and the discharge for the refrigerant may be arranged on different, in particular opposite sides of the housing.
  • Feeder as discharge can be arranged at the same height or at different heights on the housing.
  • a double inflow and / or outflow may be provided.
  • the supply and discharge for the refrigerant are arranged in the vicinity of two corners of the device, wherein the connection of these corners is the spatial diagonal of the device.
  • the flow devices of the combustion air are flat tubes. Under a flat tube is to be understood a tube which has a certain width, and a height opposite this width low. These flat tubes may have a rectangular, elliptical or similar cross-section. Preferably, the flat tubes of the flow device of the combustion air are arranged substantially parallel to each other.
  • the flow means of the refrigerant turbulence devices such as turbulence grids or plates, structured surfaces, turbulence generators, etc. on.
  • Structured surfaces are understood to mean that the surfaces are not smooth, but rather projections, grooves, flags or similar devices which increase the turbulence of the medium flowing past them. and thus improve the heat transfer between the wall and the medium.
  • the flow device of the refrigerant preferably has separating elements which define at least one predetermined flow path for the refrigerant. This is especially but not exclusively to understand that the refrigerant can not get on the shortest path from the inlet to the outlet, but cause these release agents that the refrigerant flows through substantially the entire region of the housing. It can also be understood as a so-called forced operation.
  • the components of the devices are made of at least one material which is selected from a group of materials
  • Metals such as aluminum, iron, brass, copper, titanium, etc., metal alloys such as aluminum alloys, iron alloy, etc., plastics such as PVC, PU, thermosets, fiber reinforced plastics, etc. contains.
  • the first housing part substantially forms three profiled side surfaces of a cuboid, wherein the orientation of the profiling assumes a predetermined angle to the main flow direction of the combustion air.
  • the second housing part preferably has an outer contour adapted to the profile contour of the first housing part. In this way it is achieved that the second housing part can be fitted exactly in predetermined by the profilings of the first housing part surface.
  • the inlet and outlet flange is formed at least in two parts and closes the housing at two opposite end faces of the cuboid gas and / or liquid-tight.
  • the inlet and / or the outlet preferably has a deep-drawn body with a passage which receives a predetermined distance of a pipe, in particular a connecting pipe, or enters into this.
  • the inlet or Auslassflansch also have a survey, such as a bead, which improves the connection to another pipe
  • the supply and the discharge for the refrigerant is provided as a passage in the housing, which receives the predetermined portion of a pipe, in particular a connecting pipe, or enters into this.
  • a pipe in particular a connecting pipe
  • elevations or beads may be provided on the feed, which facilitate connection to a connection pipe.
  • the second housing part, the limiting element and the flanges preferably form a gas-tight and / or liquid-tight closure of the front sides of the housing.
  • At least two frame devices are provided, which keep at least the flat tubes of the flow device of the combustion air at a distance.
  • the frame means are preferably arranged in the vicinity of the ends of the flat tubes.
  • a frame device simultaneously acts as a separating element in order to cause the refrigerant to be distributed substantially over the entire interior of the refrigerant flow device.
  • the frame device is preferably a substantially flat plate which has a predetermined number of bushings for receiving the flat tubes. These bushings have a cross section on, which corresponds to the cross section of the flat tubes substantially or is slightly larger than the latter.
  • the frame means and the flat tubes are gas- and / or liquid-tightly connected to each other.
  • a material, force and / or positive connection between the components of the device is also provided.
  • the components of the device for exchanging heat may be connected by a solder joint.
  • the frame device is a plate with raised edges, which are in particular connected to at least a portion of the inner contour of the housing.
  • the frame means may also have instead of the raised edges a solid, edged or rounded edge.
  • the present invention is further directed to internal combustion engines with an exhaust gas turbocharger or compressor having at least one heat exchange device according to the present invention.
  • Fig. 1 shows a heat exchanger according to the invention in a partial exploded view.
  • the reference numerals 1a and 1b relate to a supply and a discharge for a refrigerant.
  • This refrigerant is preferably water, in particular water with additives, such as glycol, from the cooling circuit.
  • additives such as glycol
  • other refrigerants both in a gaseous and in a liquid phase, may also be provided.
  • the reference numerals 3 and 4 relate to a supply and a Abrrockung the combustion air, that is, the air to be cooled.
  • the inlet and the outlet are in the form of inlet and outlet flanges, which can each be connected to a further supply line. These connections can be made either by pushing a larger diameter tube over the flanges, or by inserting a smaller circumference tube into the aperture.
  • a bead 9 may be provided on the respective flanges, which allows a more stable connection between the supply pipe and the flange.
  • the reference numeral 12 denotes a frame device whose function will be described in more detail below.
  • the reference numeral 6 refers to a housing for the device for exchanging heat. The supply and discharge for the refrigerant and the supply and discharge of the combustion gas and the cover device 5 and this opposite lid means are not part of this case.
  • the housing consists of its first part 6a, which has a substantially U-shaped configuration.
  • Fig. 1 has the open side of this U in the direction of arrow A.
  • the housing has a second part 6b, which is designed here as a lid which covers the upwardly open side of the U-shaped first part.
  • the U-shaped first part has profiles 13, in which the second part is fitted with corresponding profiles.
  • the second housing part 6b is formed substantially in the shape of a rectangle having recessed portions at its longer sides.
  • Fig. 2 shows a detail view of in Fig. 1 shown device for exchanging heat.
  • the reference numerals 1a and 2a refer to flanges in which the supply and the discharge for the refrigerant 1 and 2 can be inserted.
  • Reference numeral 6a again refers to the first U-shaped part of the housing, which has a profile structure. The second part, that is the lid of the housing, was omitted in this drawing.
  • the reference numeral 12 again shows the frame device.
  • Fig. 3 is a further detail view of the interior of the housing 6 of the device for exchanging heat Fig. 1 shown.
  • flat tubes 14 are arranged, through which the combustion air flows.
  • profiled plates 15 are arranged between the individual flat tubes.
  • the devices 15 are preferably also turbulence devices such as turbulence grids or plates, structured surfaces, turbulence generators or the like.
  • the frame means 12 serves to hold the individual flat tubes 14 at a predetermined distance.
  • the frame device 12 has a Edge 12a, so that a more stable connection between the frame and the housing can be achieved.
  • the refrigerant flows from the cooling circuit through the feed 1 into the device.
  • the refrigerant will be distributed substantially over the entire volume of the housing, the profiles of the devices 15 improve the heat exchange with the flat tubes.
  • the refrigerant is again discharged via the discharge 2 from the device.
  • the cover 5 carrying the exhaust gas for the combustion gas has edges 5a and 5b here only at three side edges, the third side edge lies on the side facing away from the observer.
  • a protruding part 6 c of the housing part 6 b is inserted into the lid 5.
  • Fig. 4 shows a device according to the invention for the exchange of heat in a further embodiment in the assembled state.
  • the reference numerals 1 and 2 again refer to a supply and an exhaust for the refrigerant.
  • Reference numerals 3 and 4 designate feeds and outlets for the combustion gas.
  • the arrows each indicate the flow directions of the combustion air and the refrigerant.
  • the housing again has a first U-shaped part 6a and a second part in the form of a lid 6b '. Unlike the in Fig. 1 embodiment shown, the second part, that is, the lid, does not protrude in the lateral direction beyond the U-shaped first part; ie a section 6c is not present here.
  • Fig. 5 shows a partial exploded view of in Fig. 4 shown device for exchanging heat. It can be seen that the second part, that is to say the cover 6b ', terminates at the same height with the first part, 6a. In contrast to the cover of the combustion gas discharge 5, the cover of the combustion gas discharge 5 'has four laterally equally projecting edges 5a', 5b ', 5c', 5d '(5c' and 5d 'not shown).
  • Fig. 6 is an exploded view of in Fig. 4 shown device shown. It can be seen that the flat tubes 14 are pushed through the frame device 12.
  • the second part of the housing that is to say the cover 6b, in turn has profilings which are adapted to the corresponding profilings of the first part of the housing 6a.
  • the cover device 5 is pushed over the frame 12.
  • the cover for the combustion air supply and the cover for the combustion air discharge are formed in the same way.
  • Fig. 7 shows a detailed view of the device Fig. 6 ,
  • the second housing part 6b has been omitted in order to release the view of the inside of the housing.
  • Fig. 8 another detail of the heat exchange apparatus is shown.
  • the flow of the refrigerant here proceeds in a similar manner as in the case of the first embodiment and will therefore not be described in detail.
  • the frame means 12 In contrast to the frame means in the first embodiment, the frame means 12 'here are not provided with edges but are made substantially two-dimensional. Also, in this embodiment, the devices 15, which are referred to below as Turbulänzgeneratoren available again.
  • the device is designed based on the counterflow principle, that is, the supply of the refrigerant is on the side of the discharge of the combustion air, the discharge of the refrigerant is on the side of supplying the combustion air.
  • the position of the supply and discharge of the refrigerant or supply and discharge of the combustion gas is also possible.
  • the length I of the device is between 50 mm and 600 mm, in particular between 100 mm and 600 mm, preferably between 150 mm and 500 mm, more preferably between 200 mm and 400 mm.
  • the height h of the flat tubes is between 2 mm and 40 mm, in particular between 4 mm and 10 mm, preferably between 7.5 mm and 8.5 mm.
  • Fig. 10 is a further embodiment of the inventive device before shown for the exchange of heat.
  • the essential difference from the embodiments described above lies in the design of the second housing part 6b ', that is to say the cover, and in the design of the cover device 5.
  • the cover device 5 "is formed from a simple profile and therefore has only two side walls 5a and 5b.
  • the second part of the housing 6b ' is inserted into one of the spaces between the side walls 5a and 5b'.
  • Fig. 11 shows a representation of the device Fig. 10 in a different perspective. Since the cover 5 "has only two side walls, and only one side wall is replaced by the second part of the housing 6b ', a device is needed to close the remaining opening, which is achieved by a plate 7 inserted into the last side wall.
  • the corresponding cover for the supply of the combustion gas 3 is carried out in a corresponding manner, but it should be mentioned that the two covers for the supply and the discharge of the combustion gas are preferably executed in the same way, but this is not necessarily the case different embodiments of different embodiments are combined.
  • Fig. 9 shows the inventive device for exchanging heat according to the third embodiment in the assembled state.
  • FIG. 12 a detail view of the inventive device for exchanging heat in the third embodiment is shown. As it turned out FIGS. 12 and 13 results, the frame means 12 and 12 a are pushed to the respective ends of the flat tubes 14.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

The heat exchanger, in particular, for cooling combustion air of internal combustion engines of motor vehicles comprises a housing (6) which is provided with air entry and exit connections (3, 4) and a frame structure (12) positioning of a -pipe array with entry and exit connections (1, 2) for a cooling medium. An independent claim is also included for an internal combustion engine with the proposed heat exhanger.

Description

Die Erfindung bezieht sich auf einen Ladeluftkühler zum Austauschen von Wärme, insbesondere für die Kühlung der Verbrennungsluft von Verbrennungskraftmaschinen in Kraftfahrzeugen. Derartige Ladeluftkühler werden verwendet, um die Verbrennungsluft einer Verbrennungskraftmaschine abzukühlen.The invention relates to a charge air cooler for exchanging heat, in particular for the cooling of the combustion air of internal combustion engines in motor vehicles. Such intercoolers are used to cool the combustion air of an internal combustion engine.

Dabei wird Verbrennungsluft, welche durch Verdichtung ein höheres Temperatumiveau aufweist, durch die Vorrichtung geleitet und mit Hilfe eines Kältemittels, welches ebenfalls durch die Vorrichtung fliesst, abgekühlt. Durch die DE 199 27 607 sind Vorrichtungen bekannt, bei welchen die Verbrennungsluft durch mehrere Rohre durch die Vorrichtung zum Austausch von Wärme geleitet wird und welche eine Zuleitung und eine Ableitung für ein Kältemittel aufweisen, wodurch die Rohre von diesem Kältemittel umströmt werden. Um Abstände zwischen den Rohren zu gewährleisten, durch welche das Kältemittel hindurchfliessen kann, werden beim Stand der Technik die Rohrenden aufgeweitet, so dass die Rohre jeweils voneinander beabstandet sind.In this case, combustion air, which has a higher temperature level by compression, passed through the device and cooled by means of a refrigerant, which also flows through the device. By the DE 199 27 607 are known devices in which the combustion air is passed through a plurality of tubes through the device for exchanging heat and which have a supply line and a discharge for a refrigerant, whereby the tubes are flowed around by this refrigerant. In order to ensure distances between the tubes, through which the refrigerant can flow, the tube ends are widened in the prior art, so that the tubes are each spaced from each other.

Die DE 199 27 607 A1 offenbart einen Ladeluftkühler mit in einem Gehaüse auf genommenen Rohren mit aufgeweiteten Enden zur Einsparung des Bodens.The DE 199 27 607 A1 discloses a charge air cooler having tubes with flared ends received in a housing to save the floor.

Die US 2003/001 04 79 A1 offenbart einen Abgaskühler mit zweiteiligem Gehäuse mit Rohrböden, welche die Enden des Gehäuses umgreifen.The US 2003/001 04 79 A1 discloses an exhaust gas cooler with a two-part housing with tube plates which engage around the ends of the housing.

Die Herstellungsweise nach der DE 19927607 A1 hat den Nachteil, dass die einzelnen Rohre sehr genau aufeinander ausgerichtet werden müssen und das Zusammenlöten der Vorrichtung technisch sehr aufwendig ist. Ferner ist bekannt, das Gehäuse derartiger Vorrichtungen zweiteilig auszuführen, etwa in der Art, dass es einen U-förmigen Grundkörper aufweist sowie einen Deckel, der in diesen Grundkörper eingeschoben wird. Diese Vorgehensweise hat jedoch den Nachteil, dass sich der Deckel gegenüber der Grundform verschieben kann, wodurch die Fertigungsgenauigkeit negativ beeinflusst wird.The method of production after the DE 19927607 A1 has the disadvantage that the individual tubes must be aligned very closely to each other and the brazing the device is technically very complicated. Furthermore, it is known to carry out the housing of such devices in two parts, such as in the way that it has a U-shaped base body and a lid which is inserted into this body. However, this approach has the disadvantage that the cover can move relative to the basic shape, whereby the manufacturing accuracy is adversely affected.

Die Aufgabe der vorliegenden Erfindung ist es daher, einen verbesserten Ladeluftkühler zur Verfügung zu stellen, welche insbesondere kostengünstig herstellbar ist.The object of the present invention is therefore to provide an improved intercooler, which is particularly inexpensive to produce.

Diese Aufgabe wird erfindungsgemäss durch den Gegenstand des Hauptanspruchs 1 gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der Unteransprüche.This object is achieved according to the invention by the subject of the main claim 1. Advantageous embodiments are the subject of the dependent claims.

Gegenstand der vorliegenden Erfindung ist ein Ladeluftkühler , insbesondere für die Kühlung der Verbrennungsluft von Verbrennungskraftmaschinen in Kraftfahrzeugen, welche wenigstens eine Zuführung und eine Abführung eines ersten Mediums, wie beispielsweise eines Kältemittels, Kühlmittels oder eines anderen Mittels und wenigstens eine Zuführung und eine Abführung eines zweiten Mediums, wie beispielsweise einer Verbrennungsluft, Abgas oder eines anderen Mediums aufweist. Ferner ist wenigstens eine Strömungseinrichtung für das Kältemittel und wenigstens eine Strömungseinrichtung für die Verbrennungsluft vorgesehen, wobei die Strömungswege der Strömungseinrichtungen eines Kältemittels und der Verbrennungsluft voneinander getrennt und die Strömungsrichtungen zumindest teilweise verschieden sind.The present invention is an intercooler, in particular for the cooling of the combustion air of internal combustion engines in motor vehicles, which at least one supply and discharge of a first medium, such as a refrigerant, coolant or other means and at least one supply and discharge of a second medium , such as combustion air, exhaust gas or other medium. Further, at least one flow means for the refrigerant and at least one flow means for the combustion air is provided, wherein the flow paths of the flow means of a refrigerant and the combustion air are separated from each other and the flow directions are at least partially different.

Unter einer Strömungseinrichtung wird dabei eine Einrichtung verstanden, welche das strömende Medium räumlich begrenzt, wie beispielsweise Rohre, insbesondere Flachrohre und dergleichen. Eine Einrichtung kann mehrere Komponenten aufweisen.A flow device is understood to mean a device which spatially delimits the flowing medium, such as, for example, tubes, in particular flat tubes and the like. A device can have several components.

Mit dem Begriff Strömungseinrichtung wird darüber hinaus auch der Zwischenraum zwischen zwei Körper verstanden, der einen Strömungsweg bildet, wenn in diesem Zwischenraum ein Medium fliessen kann. So ist beispielsweise der Bereich zwischen zwei Flachrohren als Strömungseinrichtung anzusehen.The term flow device is also understood to mean the intermediate space between two bodies, which is a flow path forms, if in this space a medium can flow. For example, the area between two flat tubes is to be regarded as a flow device.

Unter einem Kältemittel ist allgemein jedes gasförmige oder flüssige Medium zu verstehen, welches eine geringere Temperatur als das zu kühlende Medium, d. h. die Verbrennungsluft aufweist. Als Kältemittel kommt insbesondere, Wasser, eventuell mit Zusätzen wie Glykol, insbesondere aus dem Kühlkreislauf, in Betracht, so dass im folgenden anstelle von Kältemittel auch von Wasser die Rede ist.Under a refrigerant is generally any gaseous or liquid medium to understand, which is a lower temperature than the medium to be cooled, d. H. having the combustion air. As a refrigerant is in particular, water, possibly with additives such as glycol, in particular from the refrigeration cycle, into consideration, so that in the following instead of refrigerant and water is mentioned.

Unter dem Strömungsweg eines Mediums ist der Weg innerhalb einer Strömungseinrichtung zu verstehen, den das Kältemittel beispielsweise zwischen der Zuführung und der Abführung innerhalb der Vorrichtung zum Kühlen von Verbrennungsluft zurücklegt.The flow path of a medium is to be understood as meaning the path within a flow device which the refrigerant covers, for example, between the feed and the discharge within the device for cooling combustion air.

Die Strömungsrichtung ist die Flussrichtung, welche das Medium, das heisst das Kältemittel oder die Verbrennungsluft innerhalb der Strömungseinrichtungen zum Kühlen von Verbrennungsluft, zumindest über einen bestimmten Zeitraum hinweg einnimmt.The flow direction is the flow direction, which occupies the medium, that is, the refrigerant or the combustion air within the flow means for cooling combustion air, at least over a certain period of time.

Die Erfindung ist ferner dadurch gekennzeichnet, dass die Strömungseinrichtungen in einem wenigstens zweiteiligen profilierten Gehäuse aufgenommen sind, wobei ein erstes Gehäuseteil im Querschnitt eine im wesentlichen U-förmige Grundform aufweist, welche durch ein zweites, im wesentlichen flächiges Gehäuseteil an der offenen Seite des ersten Gehäuseteils geschlossen wird.The invention is further characterized in that the flow means are accommodated in an at least two-part profiled housing, wherein a first housing part in cross section has a substantially U-shaped basic shape, which by a second, substantially flat housing part on the open side of the first housing part is closed.

Das Gehäuse der Vorrichtung weist ferner an zwei gegenüberliegenden Seiten wenigstens einen Einlass- und wenigstens einen Auslassflansch für die Verbrennungsluft auf.The housing of the device further has on at least two opposite sides at least one inlet and at least one outlet flange for the combustion air.

Die Strömungseinrichtungen für die Verbrennungsluft und/oder das Kältemittel werden mittels wenigstens einer Rahmeneinrichtung, welche im Gehäuse aufgenommen ist, in wenigstens einem Bereich voneinander beabstandet gehalten.The flow means for the combustion air and / or the refrigerant are by means of at least one frame means, which in the housing is received, held spaced apart in at least one area.

Unter einem zweiteiligen Gehäuse ist zu verstehen, dass das Gehäuse nicht aus einem Grundkörper hergestellt wird; sondern zwei separate Teile aufweist, welche miteinander zusammengefügt und insbesondere verbunden werden.Under a two-part housing is to be understood that the housing is not made of a base body; but has two separate parts which are joined together and in particular connected.

Unter profiliert ist zu verstehen, dass die Kanten, an welchen die Gehäuseteile aneinandergefügt werden, nicht linear verlaufen, sondern in bestimmter Weise hiervon abweichen. So können beispielsweise in einem Gehäuseteil Kerben oder Nuten vorgesehen sein, in welche Vorsprünge des zweiten Gehäuseteils eingreifen. Ferner können auch Vorsprünge in beliebiger geometrischer Form vorgesehen sein, welche in dementsprechende Ausbuchtungen des entsprechenden anderen Gehäuseteils eingreifen.Under profiled is to understand that the edges to which the housing parts are joined together, not linear, but differ in a certain way thereof. For example, notches or grooves may be provided in a housing part, in which projections of the second housing part engage. Furthermore, projections may be provided in any geometric shape, which engage in corresponding bulges of the corresponding other housing part.

Unter einer U-förmigen Grundform werden in der vorliegenden Erfindung, solche Formen verstanden, deren Querschnitt im wesentlichen durch ein Rechteck beschrieben werden, bei welchem eine der vier Seiten fehlt. Dabei können jedoch die einzelnen Ecken auch abgerundet sein oder eine Seite kreis- oder ellipsenförmig ausgeführt sein. Auch der Verlauf der einzelnen Seite muss nicht zwangsläufig linear sein.In the present invention, a U-shaped basic shape is understood to mean those shapes whose cross-section is essentially described by a rectangle in which one of the four sides is missing. However, the individual corners may also be rounded or one side may be circular or elliptical. The course of the individual page does not necessarily have to be linear.

Der Begriff "U-förmig" in der vorliegenden Erfindung beschreibt auch Gestaltungsformen, bei welchem im Querschnitt der weggelassene Seite eine längere Seite des Rechtecks ist.The term "U-shaped" in the present invention also describes shapes in which the side omitted in cross-section is a longer side of the rectangle.

Schliesslich werden auch solche Formen umfasst, welche einen im wesentlichen ellipsenförmigen Querschnitt aufweisen, wobei ein Segment aus dieser Ellipse ausgeschnitten ist.Finally, those forms are also included which have a substantially elliptical cross-section, with a segment being cut out of this ellipse.

Unter einem flächigen Gehäuseteil wird ein Gehäuseteil verstanden, welches sich im wesentlichen in zwei Dimensionen erstreckt, das heisst im wesentlichen eine Ebene bildet.A flat housing part is understood to mean a housing part which extends essentially in two dimensions, that is to say essentially forms a plane.

Unter einer Rahmeneinrichtung im Sinne der vorliegenden Erfindung wird jede Einrichtung verstanden, welche dazu geeignet ist, Strömungseinrichtungen in einem vordefinierten Abstand zueinander zu halten.In the context of the present invention, a frame device is understood as any device which is suitable for keeping flow devices at a predefined distance from one another.

In einer bevorzugten Ausführungsform weist wenigstens ein Teil des zweiteiligen Gehäuses die Zuführung und die Abführung für das Kältemittel auf.In a preferred embodiment, at least a part of the two-part housing on the supply and the discharge for the refrigerant.

Bevorzugt sind die Zuführung und Abführung für das Kältemittel an derselben Seite des Gehäuses angeordnet. Alternativ können die Zuführung und die Abführung für das Kältemittel an verschiedenen, insbesondere gegenüberliegenden Seiten des Gehäuses angeordnet sein. Zuführung wie Abführung können auf gleicher Höhe oder auf unterschiedlicher Höhe an dem Gehäuse angeordnet sein. Auch kann ein zweifacher Zufluß und/oder Abfluß vorgesehen sein.Preferably, the supply and discharge for the refrigerant are arranged on the same side of the housing. Alternatively, the supply and the discharge for the refrigerant may be arranged on different, in particular opposite sides of the housing. Feeder as discharge can be arranged at the same height or at different heights on the housing. Also, a double inflow and / or outflow may be provided.

In einer Ausführungsform sind die Zuführung und die Abführung für das Kältemittel in der Nähe zweier Ecken der Vorrichtung angeordnet, wobei die Verbindung dieser Ecken die Raumdiagonale der Vorrichtung ist.In one embodiment, the supply and discharge for the refrigerant are arranged in the vicinity of two corners of the device, wherein the connection of these corners is the spatial diagonal of the device.

Bevorzugt handelt es sich bei den Strömungseinrichtungen der Verbrennungsluft um Flachrohre. Unter einem Flachrohr ist dabei ein Rohr zu verstehen, welches eine bestimmte Breite aufweist, und eine gegenüber dieser Breite geringe Höhe. Diese Flachrohre können einen rechteckigen, ellipsenförmige oder ähnlichen Querschnitt aufweisen. Bevorzugt werden die Flachrohre der Strömungseinrichtung der Verbrennungsluft im wesentlichen parallel zueinander angeordnet.Preferably, the flow devices of the combustion air are flat tubes. Under a flat tube is to be understood a tube which has a certain width, and a height opposite this width low. These flat tubes may have a rectangular, elliptical or similar cross-section. Preferably, the flat tubes of the flow device of the combustion air are arranged substantially parallel to each other.

Bevorzugt weist die Strömungseinrichtung des Kältemittels Turbulenzeinrichtungen, wie beispielsweise Turbulenzgitter oder Platten, strukturierte Oberflächen, Turbulenzgeneratoren usw. auf.Preferably, the flow means of the refrigerant turbulence devices, such as turbulence grids or plates, structured surfaces, turbulence generators, etc. on.

Unter strukturierten Oberflächen wird dabei verstanden, dass die Oberflächen nicht glatt sind, sondern Vorsprünge, Rillen, Fahnen oder ähnliche Einrichtungen, welche die Turbulenz des daran vorbeifliessenden Mediums erhöhen, aufweisen und somit den Wärmeübergang zwischen Wand und Medium verbessern.Structured surfaces are understood to mean that the surfaces are not smooth, but rather projections, grooves, flags or similar devices which increase the turbulence of the medium flowing past them. and thus improve the heat transfer between the wall and the medium.

Bevorzugt weist die Strömungseinrichtung des Kältemittels Trennelemente auf, die wenigstens einen vorbestimmten Strömungsweg für das Kältemittel festlegen. Darunter ist insbesondere aber nicht ausschliesslich zu verstehen, dass das Kältemittel nicht auf dem kürzesten Weg vom Einlass zum Auslass gelangen kann, sondern diese Trennmittel bewirken, dass das Kältemittel im wesentlichen den gesamten Bereich des Gehäuses durchströmt. Auch kann darunter eine sogenannte Zwangsführung verstanden werden.The flow device of the refrigerant preferably has separating elements which define at least one predetermined flow path for the refrigerant. This is especially but not exclusively to understand that the refrigerant can not get on the shortest path from the inlet to the outlet, but cause these release agents that the refrigerant flows through substantially the entire region of the housing. It can also be understood as a so-called forced operation.

Bevorzugt sind die Bauteile der Vorrichtungen, wie beispielsweise die Strömungseinrichtungen, das Gehäuse, die Zu- und Abführung für das Kältemittef, der Einlass- und Auslassflansch für die Verbrennungsluft etc. aus wenigstens einem Material hergestellt, welches aus einer Gruppe von Materialien ausgewählt ist, die Metalle wie Aluminium, Eisen, Messing, Kupfer, Titan etc., Metalilegierungen wie Aluminiumlegierungen, Eisenlegierung etc., Kunststoffe wie PVC, PU, Duroplasten, faserverstärkte Kunststoffe etc. enthält.Preferably, the components of the devices, such as the flow devices, the housing, the inlet and outlet for the Kältemittef, the inlet and outlet flange for the combustion air, etc. are made of at least one material which is selected from a group of materials Metals such as aluminum, iron, brass, copper, titanium, etc., metal alloys such as aluminum alloys, iron alloy, etc., plastics such as PVC, PU, thermosets, fiber reinforced plastics, etc. contains.

In der bevorzugten Ausführungsform bildet das erste Gehäuseteil im wesentlichen drei profilierte Seitenflächen eines Quaders, wobei die Ausrichtung der Profilierung einen vorgegebenen Winkel zur Hauptströmungsrichtung der Verbrennungsluft einnimmt.In the preferred embodiment, the first housing part substantially forms three profiled side surfaces of a cuboid, wherein the orientation of the profiling assumes a predetermined angle to the main flow direction of the combustion air.

Unter einer profilierten Seitenfläche ist wiederum zu verstehen, dass die Seitenfläche keine glatte Fläche ist, sondern vordefinierte Abweichungen von einer glatten Oberfläche aufweist.Under a profiled side surface is again to understand that the side surface is not a smooth surface, but has predefined deviations from a smooth surface.

Bevorzugt weist das zweite Gehäuseteil eine an die Profilkontur des ersten Gehäuseteils angepasste Aussenkontur auf. Auf diese Weise wird erreicht, dass das zweite Gehäuseteil genau in durch die Profilierungen des ersten Gehäuseteils vorgegebene Fläche eingepasst werden kann.The second housing part preferably has an outer contour adapted to the profile contour of the first housing part. In this way it is achieved that the second housing part can be fitted exactly in predetermined by the profilings of the first housing part surface.

In einer bevorzugten Ausführungsform ist der Einlass- und Auslassflansch wenigstens zweiteilig ausgebildet und schliesst das Gehäuse an zwei gegenliegenden Stirnseiten des Quader gas- und/oder flüssigkeitsdicht ab. Dabei weist der Einlass- und/oder der Auslassflansch bevorzugt einen tiefgezogenen Grundkörper mit einer Durchführung auf, welche einen vorgegebenen Abstand eines Rohres, insbesondere eines Anschlussrohres, aufnimmt oder in diesen eintritt. Zu diesem Zweck kann der Ein- oder Auslassflansch auch eine Erhebung, wie einen Wulst, aufweisen, welcher den Anschluss an ein weiteres Rohr verbessertIn a preferred embodiment, the inlet and outlet flange is formed at least in two parts and closes the housing at two opposite end faces of the cuboid gas and / or liquid-tight. In this case, the inlet and / or the outlet preferably has a deep-drawn body with a passage which receives a predetermined distance of a pipe, in particular a connecting pipe, or enters into this. For this purpose, the inlet or Auslassflansch also have a survey, such as a bead, which improves the connection to another pipe

Bevorzugt ist die Zuführung und die Abführung für das Kältemittel als Durchführung im Gehäuse vorgesehen, welche den vorgegebenen Abschnitt eines Rohres, insbesondere eines Anschlussrohres aufnimmt, oder in diesen eintritt. Auch hier können wiederum Erhebungen oder Wulste an der Zuführung vorgesehen sein, welche einen Anschluss an ein Anschlussrohr erleichtem.Preferably, the supply and the discharge for the refrigerant is provided as a passage in the housing, which receives the predetermined portion of a pipe, in particular a connecting pipe, or enters into this. Again, elevations or beads may be provided on the feed, which facilitate connection to a connection pipe.

Bevorzugt bilden das zweite Gehäuseteil, das Begrenzungselement und die Flansche einen gas- und/oder flüssigkeitsdichten Abschluss der Stirnseiten des Gehäuses.The second housing part, the limiting element and the flanges preferably form a gas-tight and / or liquid-tight closure of the front sides of the housing.

In einer weiteren bevorzugten Ausführungsform sind wenigstens zwei Rahmeneinrichtungen vorgesehen, welche wenigstens die Flachrohre der Strömungseinrichtung der Verbrennungsluft beabstandet halten. Dabei sind die Rahmeneinrichtungen bevorzugt in der Nähe der Enden der Flachrohre angeordnet. Es sind jedoch auch andere Anordnungen der Rahmeneinrichtungen denkbar. Insbesondere ist es denkbar, dass eine Rahmeneinrichtung gleichzeitig als Trennelement fungiert, um zu bewirken, dass das Kältemittel im wesentlichen über den gesamten Innenraum der Kältemittelströmungseinrichtung verteilt sein kann.In a further preferred embodiment, at least two frame devices are provided, which keep at least the flat tubes of the flow device of the combustion air at a distance. In this case, the frame means are preferably arranged in the vicinity of the ends of the flat tubes. However, other arrangements of the frame means are conceivable. In particular, it is conceivable that a frame device simultaneously acts as a separating element in order to cause the refrigerant to be distributed substantially over the entire interior of the refrigerant flow device.

Bevorzugt handelt es sich bei der Rahmeneinrichtung um eine im wesentlich ebene Platte, welche eine vorgegebene Zahl an Durchführungen zur Aufnahme der Flachrohre aufweist. Diese Durchführungen weisen einen Querschnitt auf, der im wesentlichen dem Querschnitt der Flachrohre entspricht bzw. geringfügig grösser als letzterer ist.The frame device is preferably a substantially flat plate which has a predetermined number of bushings for receiving the flat tubes. These bushings have a cross section on, which corresponds to the cross section of the flat tubes substantially or is slightly larger than the latter.

In einer besonders bevorzugten Ausführungsform sind die Rahmeneinrichtung und die Flachrohre gas- und/oder flüssigkeitsdicht miteinander verbunden.In a particularly preferred embodiment, the frame means and the flat tubes are gas- and / or liquid-tightly connected to each other.

Bevorzugt ist ferner eine stoff-, kraft- und/oder formschlüssige Verbindung zwischen den Bauteilen der Vorrichtung vorgesehen. Dabei können in einer bevorzugten Ausführungsform die Bauteile der Vorrichtung zum Austausch von Wärme durch eine Lötverbindung verbunden sein.Preferably, a material, force and / or positive connection between the components of the device is also provided. In this case, in a preferred embodiment, the components of the device for exchanging heat may be connected by a solder joint.

In einer weiteren bevorzugten Ausführungsform ist die Rahmeneinrichtung eine Platte mit hochgestellten Rändern, welche insbesondere mit wenigstens einem Abschnitt der Innenkontur des Gehäuses verbunden sind. Die Rahmeneinrichtung kann jedoch auch anstelle der hochgestellten Ränder einen durchgezogenen, kantigen oder auch gerundeten Rand aufweisen.In a further preferred embodiment, the frame device is a plate with raised edges, which are in particular connected to at least a portion of the inner contour of the housing. However, the frame means may also have instead of the raised edges a solid, edged or rounded edge.

Die vorliegende Erfindung ist ferner auf Verbrennungsmotoren mit einem Abgasturbolader oder Kompressor gerichtet, welche mindestens eine Vorrichtung zum Austausch von Wärme gemäss der vorliegenden Erfindung aufweist.The present invention is further directed to internal combustion engines with an exhaust gas turbocharger or compressor having at least one heat exchange device according to the present invention.

Weitere Vorteile und Ausgestaltungen der vorliegende Erfindung ergeben sich aus den beigefügten Figuren.Further advantages and embodiments of the present invention will become apparent from the accompanying figures.

Darin zeigen:

Fig. 1
einen erfindungsgemässen Wärmetauscher gemäss einer ersten Ausführungsform;
Fig. 2
eine Detailansicht des erfindungsgemässen Wärmetauschers aus Fig. 1;
Fig. 3
eine Detailansicht des Wärmetauschers aus den Figuren 1 und 2;
Fig. 4
einen erfindungsgemässen Wärmetauscher gemäss einer weiteren Ausführungsform in zusammengebautem Zustand;
Fig. 5
einen erfindungsgemässen Wärmetauscher aus Fig. 4 in einer teilweisen Explosionsansicht;
Fig. 6
den erfindungsgemässen Wärmetauscher aus Fig. 4 in einer, weiteren Explosionsansicht;
Fig. 7
eine Detailansicht des erfindungsgemässen Wärmetauschers aus Fig. 4;
Fig. 8
eine Detailansicht des erfindungsgemässen Wärmetauschers aus den Figuren 4 bis 7;
Fig. 9
einen erfindungsgemässen Wärmetauscher gemäss einer weiteren Ausführungsform in zusammengebautem Zustand;
Fig. 10
der erfindungsgemässe Wärmetauscher nach Fig. 9 in einer teilweisen Explosionsansicht;
Fig. 11
eine Darstellung des Wärmetauschers aus Fig. 10 in einer anderen Perspektive;
Fig. 12
eine Detailansicht des Wärmetauschers aus Fig. 9; und
Fig. 13
eine Detailansicht des Wärmetauschers aus den Figuren 9 bis 12.
Show:
Fig. 1
a heat exchanger according to the invention according to a first embodiment;
Fig. 2
a detailed view of the inventive heat exchanger Fig. 1 ;
Fig. 3
a detailed view of the heat exchanger from the Figures 1 and 2 ;
Fig. 4
a heat exchanger according to the invention according to a further embodiment in the assembled state;
Fig. 5
a heat exchanger according to the invention Fig. 4 in a partial exploded view;
Fig. 6
the inventive heat exchanger Fig. 4 in a, further exploded view;
Fig. 7
a detailed view of the inventive heat exchanger Fig. 4 ;
Fig. 8
a detailed view of the inventive heat exchanger from the FIGS. 4 to 7 ;
Fig. 9
a heat exchanger according to the invention according to a further embodiment in the assembled state;
Fig. 10
the inventive heat exchanger after Fig. 9 in a partial exploded view;
Fig. 11
a representation of the heat exchanger Fig. 10 in a different perspective;
Fig. 12
a detailed view of the heat exchanger Fig. 9 ; and
Fig. 13
a detailed view of the heat exchanger from the FIGS. 9 to 12 ,

Fig. 1 zeigt einen erfindungsgemässen Wärmetauscher in einer teilweisen Explosionsansicht. Die Bezugszeichen 1a und 1b beziehen sich auf eine Zuführung sowie eine Abführung für ein Kältemittel. Fig. 1 shows a heat exchanger according to the invention in a partial exploded view. The reference numerals 1a and 1b relate to a supply and a discharge for a refrigerant.

Bei diesem Kältemittel handelt es sich bevorzugt um Wasser, insbesondere Wasser mit Zusatzstoffen, wie beispielsweise Glykol, aus dem Kühlkreislauf. Es können jedoch auch andere Kältemittel, sowohl in einer gasförmigen als auch in einer flüssigen Phase, vorgesehen sein.This refrigerant is preferably water, in particular water with additives, such as glycol, from the cooling circuit. However, other refrigerants, both in a gaseous and in a liquid phase, may also be provided.

Die Bezugszeichen 3 und 4 beziehen sich auf eine Zuführung und eine Abrührung der Verbrennungsluft, das heisst der zu kühlenden Luft. Die Zu- und die Abführung sind in Form von Ein- bzw. Auslassflanschen ausgebildet, welche jeweils mit einer weiteren Zuleitung verbunden werden können. Diese Verbindungen können entweder dadurch zustande kommen, dass ein Rohr mit grösserem Umfang über die Flansche geschoben wird, oder dass ein Rohr mit kleinerem Umfang in die Öffnung eingeschoben wird. Bevorzugt kann an den jeweiligen Flanschen ein Wulst 9 vorgesehen sein, der eine stabilere Verbindung zwischen dem Zuleitungsrohr und dem Flansch ermöglicht.The reference numerals 3 and 4 relate to a supply and a Abrührung the combustion air, that is, the air to be cooled. The inlet and the outlet are in the form of inlet and outlet flanges, which can each be connected to a further supply line. These connections can be made either by pushing a larger diameter tube over the flanges, or by inserting a smaller circumference tube into the aperture. Preferably, a bead 9 may be provided on the respective flanges, which allows a more stable connection between the supply pipe and the flange.

Das Bezugszeichen 12 kennzeichnet eine Rahmeneinrichtung, deren Funktion nachfolgend eingehender beschrieben wird. Das Bezugszeichen 6 bezieht sich auf ein Gehäuse für die Vorrichtung zum Austauschen von Wärme. Die Zuführung und Abführung für das Kältemittel sowie die Zuführung und Abführung für das Verbrennungsgas sowie die Deckeleinrichtung 5 und die dieser gegenüberliegende Deckeleinrichtung sind nicht Bestandteil dieses Gehäuses.The reference numeral 12 denotes a frame device whose function will be described in more detail below. The reference numeral 6 refers to a housing for the device for exchanging heat. The supply and discharge for the refrigerant and the supply and discharge of the combustion gas and the cover device 5 and this opposite lid means are not part of this case.

In dieser Ausführungsform besteht das Gehäuse aus seinem ersten Teil 6a, der im wesentlichen eine U-förmige Gestalt ausweist. In Fig. 1 weist die offene Seite dieses U in Richtung des Pfeils A. Ferner weist das Gehäuse einen zweiten Teil 6b auf, der hier als Deckel ausgeführt ist, der die nach oben offene Seite des U-förmigen ersten Teils abdeckt.In this embodiment, the housing consists of its first part 6a, which has a substantially U-shaped configuration. In Fig. 1 has the open side of this U in the direction of arrow A. Further, the housing has a second part 6b, which is designed here as a lid which covers the upwardly open side of the U-shaped first part.

Der U-förmige erste Teil weist dabei Profilierungen 13 auf, in welche der zweite Teil mit entsprechenden Profilierungen eingepasst wird.The U-shaped first part has profiles 13, in which the second part is fitted with corresponding profiles.

In Fig. 1 ist der zweite Gehäuseteil 6b im wesentlichen in der Form eines Rechtecks ausgebildet, welches an seinen längeren Seiten eingesenkte Abschnitte aufweist.In Fig. 1 the second housing part 6b is formed substantially in the shape of a rectangle having recessed portions at its longer sides.

Fig. 2 zeigt eine Detailansicht der in Fig. 1 gezeigten Vorrichtung zum Austausch von Wärme. Die Bezugszeichen 1a und 2a beziehen sich auf Flansche, in welchen die Zuführung und die Abführung für das Kältemittel 1 und 2 eingeschoben werden können. Das Bezugszeichen 6a bezieht sich wiederum auf den ersten U-förmigen Teil des Gehäuses, der eine Profilstruktur aufweist. Der zweite Teil, das heisst der Deckel des Gehäuses, wurde in dieser Zeichnung jedoch weggelassen. Das Bezugszeichen 12 zeigt wiederum die Rahmeneinrichtung. Fig. 2 shows a detail view of in Fig. 1 shown device for exchanging heat. The reference numerals 1a and 2a refer to flanges in which the supply and the discharge for the refrigerant 1 and 2 can be inserted. Reference numeral 6a again refers to the first U-shaped part of the housing, which has a profile structure. The second part, that is the lid of the housing, was omitted in this drawing. The reference numeral 12 again shows the frame device.

In Fig. 3 ist als weitere Detailansicht das Innere des Gehäuses 6 der Vorrichtung zum Austausch von Wärme aus Fig. 1 gezeigt. Innerhalb des Gehäuses 6 sind Flachrohre 14 angeordnet, durch welche die Verbrennungsluft hindurchströmt. Zwischen den einzelnen Flachrohren sind profilierte Platten 15 angeordnet.In Fig. 3 is a further detail view of the interior of the housing 6 of the device for exchanging heat Fig. 1 shown. Within the housing 6 flat tubes 14 are arranged, through which the combustion air flows. Between the individual flat tubes profiled plates 15 are arranged.

Unter Profilierung werden Einsenkungen, Erhöhungen, Furchen und dergleichen verstanden. Bevorzugt handelt es sich bei den Einrichtungen 15 auch um Turbulenzeinrichtungen wie Turbulenzgitter oder -platten, strukturierte Oberflächen, Turbulenzgeneratoren oder dergleichen.Under profiling depressions, elevations, furrows and the like are understood. The devices 15 are preferably also turbulence devices such as turbulence grids or plates, structured surfaces, turbulence generators or the like.

Die Rahmeneinrichtung 12 dient dazu, die einzelnen Flachrohre 14 in einem vorbestimmten Abstand zu halten. Die Rahmeneinrichtung 12 weist einen Rand 12a auf, damit eine stabilere Verbindung zwischen dem Rahmen und dem Gehäuse erzielt werden kann.The frame means 12 serves to hold the individual flat tubes 14 at a predetermined distance. The frame device 12 has a Edge 12a, so that a more stable connection between the frame and the housing can be achieved.

Im Betrieb strömt das Kältemittel aus dem Kühlkreislauf durch die Zuführung 1 in die Vorrichtung. Hier wird sich das Kältemittel im wesentlichen über den gesamten Rauminhalt des Gehäuses verteilen, wobei die Profilierungen der Einrichtungen 15 den Wärmeaustausch mit den Flachrohren verbessern. Schliesslich wird das Kältemittel wieder über die Abführung 2 aus der Vorrichtung abgeleitet.During operation, the refrigerant flows from the cooling circuit through the feed 1 into the device. Here, the refrigerant will be distributed substantially over the entire volume of the housing, the profiles of the devices 15 improve the heat exchange with the flat tubes. Finally, the refrigerant is again discharged via the discharge 2 from the device.

Der die Abführung für das Verbrennungsgas tragende Deckel 5 weist hier lediglich an drei Seitenrändern Ränder 5a und 5b auf, der dritte Seitenrand liegt an der dem Betrachter abgewandten Seite. An der vierten Seite wird ein vorstehender Teil 6c des Gehäuseteils 6b in den Deckel 5 eingeschoben.The cover 5 carrying the exhaust gas for the combustion gas has edges 5a and 5b here only at three side edges, the third side edge lies on the side facing away from the observer. On the fourth side, a protruding part 6 c of the housing part 6 b is inserted into the lid 5.

Fig. 4 zeigt eine erfindungsgemässe Vorrichtung zum Austausch von Wärme in einer weiteren Ausführungsform im zusammengebauten Zustand. Die Bezugszeichen 1 und 2 beziehen sich wiederum auf eine Zuführung und eine Abführung für das Kältemittel. Die Bezugszeichen 3 und 4 bezeichnen Zu- und Abführungen für das Verbrennungsgas. Die Pfeile deuten jeweils die Strömungsrichtungen der Verbrennungsluft und des Kältemittels auf. Das Gehäuse weist wieder einen ersten U-förmigen Teil 6a und einen zweiten Teil in Form eines Deckels 6b' auf. Im Gegensatz zu der in Fig. 1 gezeigten Ausführungsform, ragt der zweite Teil, das heisst der Deckel, nicht in seitlicher Richtung über den U-förmigen ersten Teil hinaus; d. h. ein Abschnitt 6c ist hier nicht vorhanden. Fig. 4 shows a device according to the invention for the exchange of heat in a further embodiment in the assembled state. The reference numerals 1 and 2 again refer to a supply and an exhaust for the refrigerant. Reference numerals 3 and 4 designate feeds and outlets for the combustion gas. The arrows each indicate the flow directions of the combustion air and the refrigerant. The housing again has a first U-shaped part 6a and a second part in the form of a lid 6b '. Unlike the in Fig. 1 embodiment shown, the second part, that is, the lid, does not protrude in the lateral direction beyond the U-shaped first part; ie a section 6c is not present here.

Fig. 5 zeigt eine teilweise Explosionsansicht der in Fig. 4 gezeigten Vorrichtung zum Austausch von Wärme. Man erkennt, dass der zweite Teil, das heisst der Deckel 6b', mit dem ersten Teil, 6a, auf gleicher Höhe abschliesst. Im Gegensatz zu dem Deckel der Verbrennungsgasabführung 5 weist der Deckel der Verbrennungsgasabführung 5' vier seitlich gleich hinausragende Ränder 5a', 5b', 5c', 5d' (5c' und 5d' nicht gezeigt) auf. Fig. 5 shows a partial exploded view of in Fig. 4 shown device for exchanging heat. It can be seen that the second part, that is to say the cover 6b ', terminates at the same height with the first part, 6a. In contrast to the cover of the combustion gas discharge 5, the cover of the combustion gas discharge 5 'has four laterally equally projecting edges 5a', 5b ', 5c', 5d '(5c' and 5d 'not shown).

In Fig. 6 ist eine Explosionsansicht der in Fig. 4 gezeigten Vorrichtung dargestellt. Man erkennt, dass die Flachrohre 14 durch die Rahmeneinrichtung 12 hindurch geschoben werden. Der zweite Teil des Gehäuses, das heisst der Deckel 6b, weist wiederum Profilierungen auf, die an die entsprechenden Profilierungen des ersten Teils des Gehäuses 6a angepasst sind. Beim Zusammenbau wird die Deckeleinrichtung 5 über den Rahmen 12 geschoben. Bevorzugt sind der Deckel für die Verbrennungsluftzuführung und der Deckel für die Verbrennungsluftabführung in gleicher Weise gebildet.In Fig. 6 is an exploded view of in Fig. 4 shown device shown. It can be seen that the flat tubes 14 are pushed through the frame device 12. The second part of the housing, that is to say the cover 6b, in turn has profilings which are adapted to the corresponding profilings of the first part of the housing 6a. During assembly, the cover device 5 is pushed over the frame 12. Preferably, the cover for the combustion air supply and the cover for the combustion air discharge are formed in the same way.

Fig. 7 zeigt eine Detailansicht der Vorrichtung aus Fig. 6. Das zweite Gehäuseteil 6b wurde weggelassen, um die Sicht auf das Innere des Gehäuses freizugeben. Fig. 7 shows a detailed view of the device Fig. 6 , The second housing part 6b has been omitted in order to release the view of the inside of the housing.

In Fig. 8 wird ein weiteres Detail der Vorrichtung zum Austausch von Wärme gezeigt. Der Fluss des Kältemittels verläuft hier in ähnlicher Weise wie im Fall der ersten Ausführungsform und wird daher nicht eingehender beschrieben. Im Gegensatz zu der Rahmeneinrichtung in der ersten Ausführungsform, ist die Rahmeneinrichtung 12' hier nicht mit Rändern versehen, sondern im wesentlichen zweidimensional ausgeführt. Auch sind bei diesem Ausführungsbeispiel wieder die Einrichtungen 15, die im folgenden als Turbulänzgeneratoren bezeichnet werden, vorhanden.In Fig. 8 another detail of the heat exchange apparatus is shown. The flow of the refrigerant here proceeds in a similar manner as in the case of the first embodiment and will therefore not be described in detail. In contrast to the frame means in the first embodiment, the frame means 12 'here are not provided with edges but are made substantially two-dimensional. Also, in this embodiment, the devices 15, which are referred to below as Turbulänzgeneratoren available again.

Es ist jedoch auch möglich, anstelle dieser Turbulenzgeneratoren Freiräume zwischen den Flachrohren zu belassen, zwischen welche das Kältemittel im wesentlichen ungehindert strömen kann. In den vorliegenden Ausführungsformen ist die Vorrichtung auf dem Gegenstromprinzip basierend konzipiert, das heisst, die Zuführung des Kältemittels liegt auf der Seite der Abführung der Verbrennungsluft, die Abführung des Kältemittels liegt auf der Seite der Zuführung der Verbrennungsluft. Es ist jedoch auch möglich, die Position der Zuführung und Abführung des Kältemittels bzw. Zuführung und Abführung des Verbrennungsgases zu vertauschen.However, it is also possible to leave free spaces between the flat tubes, between which the refrigerant can flow substantially unhindered, instead of these turbulence generators. In the present embodiments, the device is designed based on the counterflow principle, that is, the supply of the refrigerant is on the side of the discharge of the combustion air, the discharge of the refrigerant is on the side of supplying the combustion air. However, it is also possible to exchange the position of the supply and discharge of the refrigerant or supply and discharge of the combustion gas.

Die Länge I der Vorrichtung liegt zwischen 50 mm und 600 mm, insbesondere zwischen 100 mm und 600 mm, bevorzugt zwischen 150 mm und 500 mm, weiter bevorzugt zwischen 200 mm und 400 mm. Die Höhe h der Flachrohre liegt zwischen 2 mm und 40 mm, insbesondere zwischen 4 mm und 10 mm, bevorzugt zwischen 7,5 mm und 8,5 mm.The length I of the device is between 50 mm and 600 mm, in particular between 100 mm and 600 mm, preferably between 150 mm and 500 mm, more preferably between 200 mm and 400 mm. The height h of the flat tubes is between 2 mm and 40 mm, in particular between 4 mm and 10 mm, preferably between 7.5 mm and 8.5 mm.

In Fig. 10 ist eine weitere Ausführungsform der erfindungsgemässen Vor richtung zum Austausch von Wärme dargestellt. Der wesentliche Unter schied zu den oben beschriebenen Ausführungsformen liegt in der Ausgestaltung des zweiten Gehäuseteils 6b', das heisst des Deckels, und in der Ausgestaltung der Deckeleinrichtung 5". Die Deckeleinrichtung 5" wird aus einem einfachen Profil gebildet und weist daher lediglich zwei Seitenwände 5a und 5b auf. Der zweite Teil des Gehäuses 6b' wird in einen der Zwischenräume zwischen die Seitenwände 5a und 5b' eingeschoben.In Fig. 10 is a further embodiment of the inventive device before shown for the exchange of heat. The essential difference from the embodiments described above lies in the design of the second housing part 6b ', that is to say the cover, and in the design of the cover device 5. The cover device 5 "is formed from a simple profile and therefore has only two side walls 5a and 5b. The second part of the housing 6b 'is inserted into one of the spaces between the side walls 5a and 5b'.

Fig. 11 zeigt eine Darstellung der Vorrichtung aus Fig. 10 in einer anderen Perspektive. Da der Deckel 5" lediglich zwei Seitenwände aufweist, und durch das zweite Teil des Gehäuses 6b' lediglich eine Seitenwand ersetzt wird, ist eine Vorrichtung nötig, um die verbleibende Öffnung zu schliessen. Dies wird durch ein in die letzte Seitenwand eingeschobenes Blech 7 erreicht. Der entsprechende Deckel für die Zuführung des Verbrennungsgases 3 ist in entsprechender Weise ausgeführt. Es sei jedoch erwähnt, dass die beiden Deckel für die Zuführung und die Abführung des Verbrennungsgases vorzugsweise in gleicher Weise ausgeführt sind, dies jedoch nicht notwendigerweise der Fall ist. So können Deckel unterschiedlicher Ausführungsformen unterschiedlicher Ausführungsformen miteinander kombiniert werden. Fig. 11 shows a representation of the device Fig. 10 in a different perspective. Since the cover 5 "has only two side walls, and only one side wall is replaced by the second part of the housing 6b ', a device is needed to close the remaining opening, which is achieved by a plate 7 inserted into the last side wall. The corresponding cover for the supply of the combustion gas 3 is carried out in a corresponding manner, but it should be mentioned that the two covers for the supply and the discharge of the combustion gas are preferably executed in the same way, but this is not necessarily the case different embodiments of different embodiments are combined.

Fig. 9 zeigt die erfindungsgemässe Vorrichtung zum Austausch von Wärme nach der dritten Ausführungsform in zusammengebautem Zustand. Fig. 9 shows the inventive device for exchanging heat according to the third embodiment in the assembled state.

In Fig. 12 ist eine Detailansicht der erfindungsgemässen Vorrichtung zum Austausch von Wärme in der dritten Ausführungsform gezeigt. Wie sich aus Fig. 12 und Fig. 13 ergibt, werden die Rahmeneinrichtungen 12 und 12a an die jeweiligen Enden der Flachrohre 14 aufgeschoben.In Fig. 12 a detail view of the inventive device for exchanging heat in the third embodiment is shown. As it turned out FIGS. 12 and 13 results, the frame means 12 and 12 a are pushed to the respective ends of the flat tubes 14.

Claims (29)

  1. A charge air cooler for exchanging heat for cooling the combustion air of infernal combustion engines in motor vehicle with at least one feed means (1, 1a) and one discharge means (2, 2a) of a first medium as refrigerating agent, and at least one feed means and one discharge means of a second medium as the combustion air, at least one flow devices for the first medium and one flow device (14) for the second medium, wherein the flow paths of the flow devices of the first medium and of the second medium are separated from one another and the flow directions are at least partially different, characterized in that the flow devices (14) are accommodated in an at least two-component, contoured housing (6), wherein a first housing component (6a) has an essentially U-shaped outline cross section which is closed by a second, essentially planar housing component (6b, 6b') at the open side of the first housing component, and in that the housing (6) has, on two opposite sides, at least one inlet flange and at least one outlet flange (3, 4) for the second medium, and in that the flow devices (14) are held spaced apart from one another in at least one region by means of at least one frame device (12, 12', 12a) which is accommodated in the housing (6), wherein the flow devices (14) are pipes through which the combustion, air flows.
  2. The charge air cooler for exchanging heat as claimed in claim 1, characterized in that at least one component of the two-component housing (6) has the feed means and the discharge means for the first medium.
  3. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the feed means and the discharge means for the first medium are arranged on the same side of the housing.
  4. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the feed means and the discharge means for the first medium are arranged on different, in particular opposite, sides of the housing (6).
  5. The charge air cooler as claimed in one of the preceding claims, characterized in that a single or doubly feed means and/or discharge means is provided for the first medium.
  6. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the flow devices (14) for the combustion air are flat pipes.
  7. The charge air cooler for exchanging heat, in particular as claimed in claim 6, characterized in that the flat pipes (14) of the flow device for the combustion air are arranged essentially parallel to one another.
  8. The charge air cooler as claimed in one of the preceding claims 6 or 7, characterized in that the flat pipes (14) are arranged in one, two or more rows of parallel pipes, wherein the rows of flat pipes are arranged parallel to one another and/or in series with one another.
  9. The charge air cooler as claimed in claim 8, characterized in that the respective rows of flat pipes (14) comprise a predefinable number of pipes (14).
  10. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the flow device of the first medium has turbulence devices such as, for example, turbulence grilles or plate, patterned surfaces, turbulence generators etc.
  11. The charge air cooler as claimed in claim 10, characterized in that the drop in pressure in the region of the turbulence devices in the main direction of flow is greater than perpendicularly to the main direction of flow.
  12. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims 6 to 11, characterized in that the flow device of the first medium has flow paths which are determined essentially by the distance between the flat pipes (14) of the combustion air and/or the distance from the flat pipes to the housing (6) and/or by the turbulence devices.
  13. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the flow device of the first medium has dividing elements which define at least one predetermined flow patch for the first medium.
  14. The charge air cooler for exchanging heat, in particular as claimed ion at least one of the preceding claims, characterized in that the components of the charge air cooler such as, for example, the flow devices, the housing (6), the feed means and discharge means for the first medium, the inlet flange (3) and outlet flange (4) for the combustion air, etc. are manufactured from at least one material which is selected from a group of materials which contain metals such as aluminum, iron, brass, copper, titanium etc., metal alloys such as aluminum alloy, iron alloys, etc., plastics PVC, PU, duroplastics, fiber-reinforced plastics, etc.
  15. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the first housing component (6a) forms essentially three contoured side faces of a cube, wherein the orientation of the contouring assumes a predefined angle with respect to the main direction of flow of the second medium.
  16. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the second housing component (6b, 6b') has an external contour which is adopted to the profile contour of the first housing component (6a).
  17. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the inlet flange and outlet flange (3, 4, 5) have at least two components, and the housing (6) is closed off on two opposite end sides of the cube in a gas-tight and/or liquid-tight fashion.
  18. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the inlet flange and/or the outlet flange (3, 4, 5) have a deep-drawn base body with a bushing which accommodates a predefined section of a pipe, in particular of a connecting pipe, or fits into it.
  19. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the feed means and the discharge means for the first medium are bushings in the housing (6) which accommodate a predefined section of a pipe, in particular of a connecting pipe (15), or fit into it .
  20. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the inlet flange and/or the outlet flange (3, 4, 5) has a base body (6a) which is bent on at least two sides, in particular in the shape of a U, and has a bushing which accommodates a predefined section of a pipe, in particular of a connecting pipe, or fits into it, and has at least one further bushing for accommodating a boundary element.
  21. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the second housing component (6b, 6b'), the boundary element and the flanges form a gas-tight and/or liquid-tight termination of the end sides of the housing (6).
  22. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims 6 to 21, characterized in that at least two frame devices (12, 12', 12a) are provided which keep at least the flat pipes of the flow device of the combustion air spaced apart.
  23. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims 6 to 22, characterized in that the frame device (12, 12', 12a) is an essentially planar plate which has a predefined number of bashings for accommodating the flat pipes (14).
  24. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims 6 to 23, characterized in that the frame devices (12, 12', 12a) and the flat pipes (14) are connected in a gays-tight and/or liquid-tight fashion.
  25. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that a materially joined, frictionally locking and/or positively locking confection is provided between the components of the device.
  26. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the components of the charge air cooler for exchanging heat are connected by means of a soldered confection.
  27. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the frame device (12, 12', 12a) is a plate with upturned edges which are connected, in particular, to at least one section of the internal contour of the housing (6).
  28. The charge air cooler for exchanging heat, in particular as claimed in at least one of the preceding claims, characterized in that the turned up edges of the frame devices (12, 12', 12a) have sharply edged or rounded corners.
  29. Internal combustion engines having an exhaust gas turbocharger which has at least one devices for exchanging heat as claimed in at least one of claims 1 to 28.
EP03789017A 2003-01-23 2003-11-07 Charge air cooler Expired - Lifetime EP1590615B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10302708A DE10302708A1 (en) 2003-01-23 2003-01-23 Device for exchanging heat used especially for cooling combustion air in IC engines of vehicles has flow units arranged in a two-part profiled housing
DE10302708 2003-01-23
PCT/EP2003/012468 WO2004065874A1 (en) 2003-01-23 2003-11-07 Device for exchanging heat

Publications (2)

Publication Number Publication Date
EP1590615A1 EP1590615A1 (en) 2005-11-02
EP1590615B1 true EP1590615B1 (en) 2012-01-25

Family

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EP03789017A Expired - Lifetime EP1590615B1 (en) 2003-01-23 2003-11-07 Charge air cooler

Country Status (9)

Country Link
US (1) US7571718B2 (en)
EP (1) EP1590615B1 (en)
JP (1) JP4575169B2 (en)
CN (1) CN100559107C (en)
AT (1) ATE543064T1 (en)
AU (1) AU2003293667A1 (en)
BR (1) BR0318033A (en)
DE (2) DE10302708A1 (en)
WO (1) WO2004065874A1 (en)

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AU2003293667A1 (en) 2004-08-13
US7571718B2 (en) 2009-08-11
CN100559107C (en) 2009-11-11
JP4575169B2 (en) 2010-11-04
US20060048759A1 (en) 2006-03-09
EP1590615A1 (en) 2005-11-02
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CN1742188A (en) 2006-03-01
BR0318033A (en) 2005-12-06

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