EP1002602B1 - Device and method for the fabrication of an engine block - Google Patents
Device and method for the fabrication of an engine block Download PDFInfo
- Publication number
- EP1002602B1 EP1002602B1 EP99110195A EP99110195A EP1002602B1 EP 1002602 B1 EP1002602 B1 EP 1002602B1 EP 99110195 A EP99110195 A EP 99110195A EP 99110195 A EP99110195 A EP 99110195A EP 1002602 B1 EP1002602 B1 EP 1002602B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liner
- seat
- seat surfaces
- cylinder liners
- cylinder
- 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
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Classifications
-
- 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
- B22D19/0009—Cylinders, pistons
Definitions
- the invention relates to a device for producing an engine block, with the composite with casting material included in a mold, each held on a seat Cylinder liners, the seat having seating surfaces engaging at the ends of the sleeve, and a corresponding method for the production of an engine block.
- the mold mentioned at the outset is therefore partly due to the mold cavity of the mold adjacent cylinder liners formed, which after solidification of the casting material are integrated in the engine block and detached from the mold during demolding.
- the liners are preheated, preferably inductively. In doing so, and to a lesser extent even when pouring them in later, they expand, which results in an undesirable mobility of the cylinder liners in their seats the consequence that the liners provided by their in the engine block manufactured Position may differ. Both undesirable parallel shifts occur inclinations of the sleeve axis.
- the device achieving this object according to the invention is characterized in that that the seats are conical in such a way that the bush ends in the event of thermal expansion of the cylinder liners in preparation and during casting remain in contact with the seats.
- the independent claims 1 and 11 are 2-part version delimited from US5771955 (or US5365997).
- the invention ensures that when the liner expands thermally regardless of the state of expansion with their ends always against the conical seats which means that in addition to sealing against liquid casting material, centering the liner is guaranteed.
- the sleeve axis can neither move in parallel still tend.
- tan ⁇ l / d
- d 2r belongs to a length l Rifle diameter called.
- the cylinder liners have the Inclined conical end surfaces. Are advantageous by such matched Seat and sleeve end surfaces formed guides that improve the centering effect. By adapting the surfaces to each other relatively easily can slide during the casting process, the mold by the thermal expansion of the Liners are not damaged.
- the end surfaces can over the seat surfaces protrude beyond, whereby a ring undercut is formed in each case, the can be filled through the casting material and for a particularly tight integration of the Liner in the casting material.
- Aluminum or an aluminum alloy are preferably used as the casting material for the block and as material for the liner cast iron aluminum or an aluminum alloy into consideration.
- the cylinder liners can be provided on the outside with a profile through which both axial displacements and rotations are made more difficult and the liners so that they are particularly firmly embedded in the casting material.
- a coating can also be provided through which a metallic connection between the liners and the casting material.
- a coating could e.g. consist of AlSi5, AlSi9 or Zn.
- parts 1 to 4 of a casting mold which can be joined together are provided with the reference numerals Manufacture of a multi-cylinder engine block called.
- the molds consist of sand, to which a synthetic resin binder has been added.
- part of a cylinder liner 5 is visible for one of the cylinders. From Gray cast iron existing cylinder liner 5 forms another part of the casting mold. Corresponding it borders with its outer surface on a mold cavity 6 to be poured, which is otherwise limited by the mold parts 1 to 4 mentioned.
- the mold cavity 6 includes the most hatched areas in Figures 1 and 2.
- Burn-out domes 7, 8 and 9 extend in the mold cavity 6, one at the Mandrel 9 adjacent, double hatched area for removing the casting material in the Postprocessing is provided.
- the mold part 2 comprises a slightly conical dome 12 on which the cylinder liner 5 sits on.
- the dome 12 has a lateral surface facing the inside of the sleeve 11 on.
- Seating surfaces 13 and 14 form a seat for the cylinder liner 5, the conical Seat 14 on the mold part 1 and the conical seat 13 on the mold part 2 is shaped.
- the mandrel 12 of the mold part 2 extends into a to the cylinder liner 5 coaxial recess 15.
- the reference numeral 16 is a core arranged in the mold cavity 6 for the formation a coolant cavity.
- the reference number 17 indicates an area which like the area 10 for removing casting material by machining post-processing is provided. Also a part of the cylinder liners facing the mandrel 12 5 will be removed later.
- the liner 5 has at its ends next to each on the seat surfaces 13 and 14 adapted conical surfaces on a gradation 18 to Establishing a firm connection between the casting material and the cylinder liner contributes and in particular counteracts axial displacements of the liner.
- the mentioned conical surfaces could form over the conical seats protrude annular undercut that can be filled with casting material.
- the mold is made by assembling the mold parts 1 to 4 and the cylinder liner 5 assembled, wherein the mold cavity 6 is formed.
- the to the mold cavity 6 adjacent cylinder liner 5 is immobile in its through the conical seats 13 and 14 formed seat held.
- the liners are placed on an induction heater (not shown) heated up, causing them to expand.
- the inside of the liner is removed with this expansion 5 from the jacket seat surface 11 of the dors 12 by the amount ⁇ r. i.e. the inner radius r the box grows by ⁇ r. Simultaneously with this expansion of the sleeve 5, the Length l of the sleeve 5 on its inner radius by the amount ⁇ l1 + ⁇ l2.
Abstract
Description
Die Erfindung betrifft eine Vorrichtung für die Herstellung eines Motorblocks, mit zum Verbund mit Gußmaterial in eine Gießform einbezogenen, jeweils an einem Sitz gehalterten Zylinderlaufbüchsen, wobei der Sitz an den Büchsenenden angreifende Sitzflächen aufweist, sowie ein entsprechendes Verfahren für die Herstellung eines Motorblocks.The invention relates to a device for producing an engine block, with the composite with casting material included in a mold, each held on a seat Cylinder liners, the seat having seating surfaces engaging at the ends of the sleeve, and a corresponding method for the production of an engine block.
Die eingangs erwähnte Gießform ist also zum Teil durch die an den Formhohlraum der Gießform angrenzenden Zylinderlaufbüchsen gebildet, welche nach Erstarrung des Gußmaterials in den Motorblock eingebunden sind und beim Entformen von der Gießform gelöst werden. Um eine zu schnelle Abkühlung des beim Eingießen mit den Laufbüchsen in Berührung kommenden Gußmaterials und dadurch mangelnde Einbindung der Laufbüchsen in den Motorblock zu vermeiden, werden die Laufbüchsen, vorzugsweise induktiv, vorgeheizt. Dabei und in geringerem Maße auch noch beim späteren Eingießen dehnen sie sich aus, woraus eine unerwünschte Beweglichkeit der Zylinderlaufbüchsen in ihren Sitzen resultiert mit der Folge, daß die Laufbüchsen von ihrer im hergestellten Motorblock vorgesehenen Position abweichen können. Dabei treten sowohl unerwünschte Parallelverschiebungen als auch Neigungen der Büchsenachse auf.The mold mentioned at the outset is therefore partly due to the mold cavity of the mold adjacent cylinder liners formed, which after solidification of the casting material are integrated in the engine block and detached from the mold during demolding. In order to cool the contact with the liners too quickly when pouring them upcoming casting material and thereby insufficient integration of the liners in the To avoid the engine block, the liners are preheated, preferably inductively. In doing so, and to a lesser extent even when pouring them in later, they expand, which results in an undesirable mobility of the cylinder liners in their seats the consequence that the liners provided by their in the engine block manufactured Position may differ. Both undesirable parallel shifts occur inclinations of the sleeve axis.
Es ist die Aufgabe der vorliegenden Erfindung, einen neue Gießform der eingangs erwähnten Art zu schaffen, welche die Herstellung von Motorblöcken mit gegenüber dem Stand der Technik höherer Präzision ermöglicht.It is the object of the present invention to provide a new mold of the type mentioned Type to create, which the manufacture of engine blocks with compared to the stand technology with higher precision.
Die diese Aufgabe lösende Vorrichtung nach der Erfindung ist dadurch gekennzeichnet,
daß die Sitzflächen derart konisch ausgebildet sind, daß die Büchsenenden
bei Wärmeausdehnung der Zylinderlaufbüchsen in Vorbereitung und während des Gießens
in Anlage gegen die Sitzflächen verbleiben. Die unabhängigen Ansprüche 1 und 11 sind
2-teiliger Fassung gegenüber US5771955 (bzw. US5365997) abgegrenzt.The device achieving this object according to the invention is characterized in that
that the seats are conical in such a way that the bush ends
in the event of thermal expansion of the cylinder liners in preparation and during casting
remain in contact with the seats. The
Vorzugsweise sind die Sitzflächen konisch mit einem Neigungswinkel α1 bzw. α2 zur Büchsenquerschnittsebene ausgebildet, und die Bedingung tan α1 + tan α2 = l/r ist erfüllt, worin I die sich zwischen Angriffspunkten an den Sitzflächen erstreckende axiale Büchsenlänge und r den zugehörigen Radius bezeichnen.The seat surfaces are preferably conical with an inclination angle α1 or α2 to the sleeve cross-sectional plane formed, and the condition tan α1 + tan α2 = l / r is fulfilled, in which I the axial sleeve length extending between points of attack on the seat surfaces and r designate the associated radius.
Durch die Erfindung ist gewährleistet, daß bei Wärmeausdehnung der Laufbüchse diese unabhängig vom Ausdehnungszustand mit ihren Enden stets gegen die konischen Sitzflächen anliegt wodurch neben einer Abdichtung gegen flüssiges Gußmaterial eine Zentrierung der Laufbüchsen gewährleistet ist. Die Büchsenachse kann sich weder parallel verschieben noch neigen. Nach Abkühlung und Erstarrung des Gußmaterials sind die Laufbüchsen dann genau in gewünschter Anordnung in den Motorblock eingebunden.The invention ensures that when the liner expands thermally regardless of the state of expansion with their ends always against the conical seats which means that in addition to sealing against liquid casting material, centering the liner is guaranteed. The sleeve axis can neither move in parallel still tend. After the casting material has cooled and solidified, the liners are then integrated into the engine block in exactly the desired arrangement.
In einer weiteren Ausführungsform der Erfindung sind die Winkel α1 und α2 gleich groß und gleich einem Winkel α, so daß gilt: tan α = l/d , worin d = 2r einen zu einer Länge l gehörigen Büchsendurchmesser bezeichnet. Bei einer Laufbüchse mit konischen Endflächen müssen die Bedingungen tan α1 + tan α2 = l/r und tan α = l/d für jeden Radius r vom Innen- bis zum Außenradius der Laufbüchse und die jeweils zugehörigen Längen l erfüllt sein. Während bei der Ausführungsform mit unterschiedlichen Winkeln α1 und α2 bei der Wärmeausdehnung eine axiale Schwerpunktverschiebung der Zylinderlaufbüchse auftritt kommt es bei gleich großen Winkeln α1 und α2 zu keiner solchen Verschiebung.In a further embodiment of the invention, the angles α1 and α2 are the same size and is equal to an angle α, so that: tan α = l / d, where d = 2r belongs to a length l Rifle diameter called. In the case of a liner with conical end faces the conditions tan α1 + tan α2 = l / r and tan α = l / d for each radius r from inside to The outer radius of the liner and the associated lengths l must be met. While at the embodiment with different angles α1 and α2 in the thermal expansion An axial shift in the center of gravity of the cylinder liner occurs at the same time large angles α1 and α2 to no such shift.
In einer bevorzugten Ausführungsform weisen die Zylinderlaufbüchsen entsprechend den Sitzflächen geneigte konische Endflächen auf. Vorteilhaft sind durch derart aneinander angepaßte Sitz- und Büchsenendflächen die Zentrierwirkung verbessernde Führungen gebildet. Indem die aneinander angepaßten Flächen verhältnismäßig leichtgängig aufeinander gleiten, kann während des Gießvorgangs die Gußform durch die Wärmeausdehnung der Laufbüchsen nicht beschädigt werden.In a preferred embodiment, the cylinder liners have the Inclined conical end surfaces. Are advantageous by such matched Seat and sleeve end surfaces formed guides that improve the centering effect. By adapting the surfaces to each other relatively easily can slide during the casting process, the mold by the thermal expansion of the Liners are not damaged.
In weiterer vorteilhafter Ausgestaltung der Erfindung können die Endflächen über die Sitzflächen hinaus vorstehen, wodurch jeweils eine Ringhinterschneidung gebildet wird, die durch das Gußmaterial ausgefüllt werden kann und für eine besonders feste Einbindung der Laufbüchse in das Gußmaterial sorgt. In a further advantageous embodiment of the invention, the end surfaces can over the seat surfaces protrude beyond, whereby a ring undercut is formed in each case, the can be filled through the casting material and for a particularly tight integration of the Liner in the casting material.
Vorzugsweise kommen als Gußmaterial für den Block Aluminium oder eine Aluminiumlegierung und als Material für die Laufbüchse Grauguß Aluminium oder eine Aluminiumlegierung in Betracht.Aluminum or an aluminum alloy are preferably used as the casting material for the block and as material for the liner cast iron aluminum or an aluminum alloy into consideration.
Die Zylinderlaufbüchsen können außenseitig mit einer Profilierung versehen sein, durch die sowohl axiale Verschiebungen als auch Verdrehungen erschwert und die Laufbüchsen damit besonders fest in das Gußmaterial eingebettet sind.The cylinder liners can be provided on the outside with a profile through which both axial displacements and rotations are made more difficult and the liners so that they are particularly firmly embedded in the casting material.
Zur festen Verbindung der Zylinderlaufbüchsen mit dem Gußmaterial könnte außenseitig auch eine Beschichtung vorgesehen sein, durch die eine metallische Verbindung zwischen den Laufbüchsen und dem Gußmaterial hergestellt wird. Eine solche Beschichtung könnte z.B. aus AlSi5, AlSi9 oder Zn bestehen.For a firm connection of the cylinder liners with the cast material could be on the outside a coating can also be provided through which a metallic connection between the liners and the casting material. Such a coating could e.g. consist of AlSi5, AlSi9 or Zn.
Die Erfindung soll nun anhand von Ausführungsbeispielen und der beiliegenden, sich auf diese Ausführungsbeispiele beziehenden Zeichnungen näher erläutert und beschrieben werden. Es zeigen:
- Fig. 1
- eine Teilschnittansicht einer erfindungsgemäßen Gießform,
- Fig. 2
- ein Detail der Teilschnittansicht von Fig. 1,
- Fig. 3
- eine Ansicht zur Erläuterung der Vorgänge bei der Wärmeausdehnung einer in die Gießform von Fig. 1 einbezogenen Zylinderlaufbüchse, und
- Fig. 4
- eine der Fig. 3 entsprechende Ansicht zur Erläuterung der Vorgänge bei der Wärmeausdehnung einer Zylinderlaufbüchse in einer Gießform gemäß einem weiteren Ausführungsbeispiel nach der vorliegenden Erfindung.
- Fig. 1
- 2 shows a partial sectional view of a casting mold according to the invention,
- Fig. 2
- 2 shows a detail of the partial sectional view of FIG. 1,
- Fig. 3
- a view for explaining the processes in the thermal expansion of a cylinder liner included in the casting mold of FIG. 1, and
- Fig. 4
- 3 shows a view corresponding to FIG. 3 to explain the processes involved in the thermal expansion of a cylinder liner in a casting mold according to a further exemplary embodiment according to the present invention.
In den Figuren sind mit den Bezugszeichen 1 bis 4 zusammenfügbare Teile einer Gießform zur
Herstellung eines mehrere Zylinder aufweisenden Motorblocks bezeichnet. Die Gießformen
bestehen aus Sand, dem ein Kunstharzbindemittel zugesetzt ist. In den Schnittdarstellungen
von Fig. 1 und 2 ist ein Teil einer Zylinderlaufbüchse 5 für einen der Zylinder sichtbar. Die aus
Grauguß bestehende Zylinderlaufbüchse 5 bildet ein weiteres Teil der Gießform. Entsprechend
grenzt sie mit ihrer Außenfläche an einen auszugießenden Formhohlraum 6 an, welcher
ansonsten durch die genannten Gießformteile 1 bis 4 begrenzt ist. Der Formhohlraum 6
umfaßt die in Fig. 1 und 2 am engsten schraffierten Bereiche.In the figures,
In dem Formhohlraum 6 erstrecken sich ausbrennbare Dome 7, 8 und 9, wobei ein an den
Dorn 9 angrenzender, doppelt schraffierter Bereich zum Abtragen des Gußmaterials im
Rahmen einer Nachbearbeitung vorgesehen ist. Burn-out
Das Gießformteil 2 umfaßt einen leicht konischen Dom 12, auf welchem die Zylinderlaufbüchse
5 aufsitzt. Der Dom 12 weist eine der Büchseninnenseite zugewandte Mantelfläche
11 auf. Sitzflächen 13 und 14 bilden einen Sitz für die Zylinderlaufbüchse 5, wobei die konische
Sitzfläche 14 an dem Gießformteil 1 und die konische Sitzfläche 13 an dem Gießformteil
2 geformt ist. Der Dorn 12 des Gießformteils 2 erstreckt sich in eine zu der Zylinderlaufbüchse
5 koaxiale Ausnehmung 15.The
Mit dem Bezugszeichen 16 ist ein in dem Formhohlraum 6 angeordneter Kern für die Bildung
eines Kühlmittelhohlraums bezeichnet. Das Bezugszeichen 17 weist auf einen Bereich hin,
welcher wie der Bereich 10 zum Abtragen von Gußmaterial durch spanabhebende Nachbearbeitung
vorgesehen ist. Auch ein dem Dorn 12 zugewandter Teil der Zylinderlaufbüchsen
5 wird später abgetragen.With the
Wie insbesondere aus der Fig. 2 hervorgeht, weist die Laufbüchse 5 an ihren Enden neben
jeweils an die Sitzflächen 13 und 14 angepaßten Konusflächen eine Abstufung 18 auf, die zur
Herstellung einer festen Verbindung zwischen dem Gußmaterial und der Zylinderlaufbüchse
beiträgt und insbesondere axialen Verschiebungen der Laufbüchse entgegenwirkt. Die
genannten Konusflächen könnten über die konischen Sitzflächen unter Bildung einer
ringförmigen, durch Gußmaterial ausfüllbaren Hinterschneidung überstehen.As can be seen in particular from FIG. 2, the
Die Funktion der in den Fig. 1 und 2 beschriebenen Gießform soll nun unter Einbeziehung von Fig. 3 erläutert werden.The function of the casting mold described in FIGS. 1 and 2 is now to be included 3 are explained.
Die Gießform wird unter Zusammenfügung der Gießformteile 1 bis 4 und der Zylinderlaufbüchse
5 zusammengesetzt, wobei der Formhohlraum 6 entsteht. Die an den Formhohlraum
6 angrenzende Zylinderlaufbüchse 5 ist unbeweglich in ihrem durch die konischen Sitzflächen
13 und 14 gebildeten Sitz gehaltert.The mold is made by assembling the
In Vorbereitung des Gießens werden die Laufbüchsen über eine (nicht gezeigte) induktionsheizeinrichtung aufgeheizt, wodurch sie sich ausdehnen.In preparation for casting, the liners are placed on an induction heater (not shown) heated up, causing them to expand.
Beim Eingießen von Gußmaterial in den Formhohlraum 6, in dem beschriebenen Ausführungsbeispiel
von Aluminium, kommt es zu einer weiteren Erhitzung und Ausdehnung der
Laufbüchsen 5.When pouring casting material into the
Wie Fig. 3 zu entnehmen ist, entfernt sich bei dieser Ausdehnung die Innenseite der Laufbüchse
5 von der Mantelsitzfläche 11 des Dors 12 um den Betrag Δr. d.h. der Innenradius r
der Büchse wächst um Δr. Gleichzeitig mit dieser Aufweitung der Büchse 5 vergrößert sich die
Länge l der Büchse 5 an ihrem Innenradius um den Betrag Δl1 + Δl2. Diese Längenänderung
am Innenradius und alle anderen Änderungen der Längsausdehnung der Büchse 5 bei
Wärmeeinwirkung sind im Verhältnis zum jeweiligen Ausgangsradius so bemessen, daß die
Büchse 5 mit ihren konischen Endflächen in Anlage gegen die konischen Sitzflächen 13 und
14 verbleibt und durch die konischen Sitzflächen 13 und 14 so geführt ist, daß es weder zu
einer unerwünschten Neigung der Büchsenachse noch zu ihrer Parallelverschiebung kommen
kann. Die Zylinderlaufbüchse wird daher trotz ihrer Wärmeausdehnung unabhängig
vom Ausdehnungszustand stets in einer solchen Position gehalten, daß sie nach Abkühlung
des Gußmaterials genau in der vorgesehenen Lage und Position in den Motorblock eingebunden
ist.As can be seen in FIG. 3, the inside of the liner is removed with this
Die beschriebene Ausdehnung der Zylinderlaufbüchse 5 unter Gleitanlage gegen die konischen
Sitzflächen 13 und 14 ist, wie durch die nachfolgende Rechnung gezeigt werden
kann, gewährleistet, wenn die Bedingung tan α1 + tan α2 = l/r erfüllt ist.The described expansion of the
Für die Änderung Δl der Länge I und Δr des Radius r gilt
Andererseits gilt für die Längenänderung Δl die Beziehung
Wie Fig. 3 ferner zu entnehmen ist, gilt
Setzt man (4) und (5) und danach (1) und (2) in (3) ein, so gelangt man zu der obengenannten Bedingung.Inserting (4) and (5) and then (1) and (2) in (3) leads to the above Condition.
Bei dem Ausführungsbeispiel von Fig. 3 sind die Winkel α1 und α2 annähernd gleich groß. Bei dem in Fig. 4 gezeigten Ausführungsbeispiel geht der Winkel α1 gegen Null. Die Längenänderung Δl der Länge I ist daher gleich Δl2 und der tan α1 in der obengenannten Beziehung ist gleich Null. Daraus ergibt sich für das Ausführungsbeispiel von Fig. 4 die Bedingung: tan α2 = l/r.In the embodiment of FIG. 3, the angles α1 and α2 are approximately the same size. at 4, the angle α1 goes to zero. The change in length Δl of length I is therefore equal to Δl2 and the tan α1 in the above relationship is zero. This results in the condition for the exemplary embodiment in FIG. 4: tan α2 = l / r.
Für den Fall, daß die Winkel α1 und α2 gleich groß und gleich einem Winkel α sind, ergibt sich: 2 tan α = l/r. Daraus erhält man tan α=l/2r = l/ d, wobei d gleich dem Innendurchmesser der Laufbüchse, dem Außendurchmesser oder einem zwischen Innendurchmesser und Außendurchmesser gelegenen Durchmesser ist und l die jeweils zugehörige Büchsenlänge bezeichnet.In the event that the angles .alpha.1 and .alpha.2 are equal in size and equal to an angle .alpha itself: 2 tan α = l / r. This gives tan α = l / 2r = l / d, where d is the inside diameter the liner, the outer diameter or one between the inner diameter and Outside diameter is the diameter and l the respective sleeve length designated.
Claims (11)
- Device for producing an engine block comprising cylinder liners (5) included in a casting mould for bonding to cast material and held on a respective seat, characterised in that the seat for a cylinder liner (5) has two respective seat surfaces (13, 14) which engage on opposing ends of the cylinder liners (5), the seat surfaces (13, 14) being designed conically with an angle of inclination relative to the cross-sectional plane of the liner such that the liner ends remain in contact with the seat surfaces (13, 14) upon heat expansion of the cylinder liners (5) in preparation for and during casting.
- Device according to Claim 1, characterised in that the angle of inclination α1 or α2 of the seat surfaces (13, 14) fulfills the condition tan α1 + tan α2 = l/r, wherein l designates the liner length extending between engagement points on the seat surfaces (13, 14) and r designates the associated radius.
- Device according to Claim 2, characterised in that the angles α1 and α2 are identical, with the result that: tan α1 = l/d, wherein d designates a diameter associated with the liner length l and α equals α1 or α2.
- Device according to any one of Claims 1 to 3, characterised in that the cylinder liners have conical end surfaces, which are inclined corresponding to the seat surfaces (13, 14).
- Device according to Claim 4, characterised in that the end surfaces project beyond the seat surfaces forming an annular undercut which can be filled by the cast material.
- Device according to any one of Claims 1 to 5, characterised in that the cast material is aluminium or an aluminium alloy.
- Device according to any one of Claims 1 to 6, characterised in that the liner material is grey cast iron, aluminium or an aluminium alloy.
- Device according to any one of Claims 1 to 7, characterised in that the cylinder liners are profiled on the outside.
- Device according to any one of Claims 1 to 8, characterised in that the cylinder liners have a coating on the outside for producing a metallic connection between the liners and the cast material.
- Device according to Claim 9, characterised in that the coating comprises AlSi5, AlSi9 or/and Zn.
- Method for producing an engine block, wherein cylinder liners (5) are included in a casting mould for the engine block for bonding to cast material and held on a seat, characterised in that formed on the seat for a cylinder liner (5) are two respective seat surfaces (13, 14) which engage on opposing ends of the cylinder liners (5), the seat surfaces (13, 14) being designed conically with an angle of inclination to the cross-sectional plane of the liner such that the liner ends remain in contact with the seat surfaces upon heat expansion of the cylinder liners (5) in preparation for and during casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI9930710T SI1002602T1 (en) | 1998-11-21 | 1999-05-26 | Device and method for the fabrication of an engine block |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853803 | 1998-11-21 | ||
| DE19853803A DE19853803C1 (en) | 1998-11-21 | 1998-11-21 | Apparatus for producing an engine block with cast-in cylinder liners comprises conical seating surfaces which ensure that the ends of the cylinder liners undergoing thermal expansion remain pressed against them |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1002602A1 EP1002602A1 (en) | 2000-05-24 |
| EP1002602B1 true EP1002602B1 (en) | 2004-09-29 |
Family
ID=7888595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99110195A Expired - Lifetime EP1002602B1 (en) | 1998-11-21 | 1999-05-26 | Device and method for the fabrication of an engine block |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6363995B1 (en) |
| EP (1) | EP1002602B1 (en) |
| AT (1) | ATE277706T1 (en) |
| DE (1) | DE19853803C1 (en) |
| DK (1) | DK1002602T3 (en) |
| ES (1) | ES2230767T3 (en) |
| SI (1) | SI1002602T1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004047841A1 (en) * | 2004-09-29 | 2006-04-20 | Hydro Aluminium Alucast Gmbh | Method of making castings and insert for castings |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6598655B2 (en) | 2001-06-11 | 2003-07-29 | General Motors Corporation | Casting of engine blocks |
| US6615901B2 (en) | 2001-06-11 | 2003-09-09 | General Motors Corporation | Casting of engine blocks |
| US6527039B2 (en) | 2001-06-11 | 2003-03-04 | General Motors Corporation | Casting of engine blocks |
| US6527040B2 (en) * | 2001-06-11 | 2003-03-04 | General Motors Corporation | Casting of engine blocks |
| US6533020B2 (en) | 2001-06-11 | 2003-03-18 | General Motors Corporation | Casting of engine blocks |
| DE10153721C5 (en) | 2001-10-31 | 2011-04-28 | Daimler Ag | Casting tool for producing a cylinder crankcase |
| JP2004098147A (en) * | 2002-09-11 | 2004-04-02 | Honda Motor Co Ltd | Method for producing cylinder block with sleeve |
| EP1643112B1 (en) * | 2003-07-07 | 2020-03-18 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Structure of cylinder block with cast-in cylinder liner, method of producing cylinder block, and cylinder liner for casting-in used for the method |
| DE10334855B3 (en) * | 2003-07-29 | 2004-12-09 | Hottinger Maschinenbau Gmbh | Process for positioning metallic parts in or on foundry sand cores or core packets of a casting mold comprises centering and fixing using a clamping body between a core and metallic part |
| DE10360739B4 (en) * | 2003-12-23 | 2007-10-31 | Daimlerchrysler Ag | Cylinder crankcase with cylinder liner |
| US7104307B2 (en) * | 2004-02-20 | 2006-09-12 | General Motors Corporation | Casting mold for engine block |
| US7204293B2 (en) * | 2004-02-20 | 2007-04-17 | Gm Global Technology Operations, Inc. | Liner seat design for a foundry mold with integrated bore liner and barrel core features |
| US7896600B2 (en) * | 2006-06-22 | 2011-03-01 | Honeywell International Inc. | Fastener having controllably variable preload and method of forming same |
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|---|---|---|---|---|
| FR1247477A (en) * | 1958-11-26 | 1960-12-02 | Perfect Circle Corp | Composite structure for brake drums and for cylinder blocks or other bimetallic structures and their manufacturing process |
| US3165983A (en) * | 1961-09-22 | 1965-01-19 | Reynolds Metals Co | Cylinder block constructions and methods and apparatus for making same or the like |
| DE3419979C2 (en) * | 1984-05-29 | 1986-04-17 | Fritz Winter, Eisengießerei oHG, 3570 Stadtallendorf | Casting mold for cylinder blocks of internal combustion engines |
| US4757857A (en) | 1985-12-18 | 1988-07-19 | Fritz Winter Eisengiesserei O.H.G. | Mold for casting cylinder blocks of combustion engines |
| MX9204697A (en) * | 1991-09-12 | 1993-03-01 | Ford Motor Co | IN SITU CAST IRON BASED COATINGS FOR CYLINDERS. |
| US5179994A (en) * | 1992-01-16 | 1993-01-19 | Cmi International, Inc. | Method of eliminating porosity defects within aluminum cylinder blocks having cast-in-place metallurgically bonded cylinder liners |
| US5361823A (en) * | 1992-07-27 | 1994-11-08 | Cmi International, Inc. | Casting core and method for cast-in-place attachment of a cylinder liner to a cylinder block |
| US5365997A (en) * | 1992-11-06 | 1994-11-22 | Ford Motor Company | Method for preparing an engine block casting having cylinder bore liners |
| DE4442453A1 (en) * | 1994-11-29 | 1996-05-30 | Bayerische Motoren Werke Ag | Method of casting a components from light weight alloys |
| DE19533529C2 (en) * | 1995-09-11 | 2001-10-11 | Vaw Alucast Gmbh | Process for casting an engine block from aluminum |
| DE19755557C1 (en) * | 1997-12-13 | 1999-02-04 | Vaw Alucast Gmbh | Mould for producing an engine block |
-
1998
- 1998-11-21 DE DE19853803A patent/DE19853803C1/en not_active Expired - Lifetime
-
1999
- 1999-05-26 DK DK99110195T patent/DK1002602T3/en active
- 1999-05-26 EP EP99110195A patent/EP1002602B1/en not_active Expired - Lifetime
- 1999-05-26 AT AT99110195T patent/ATE277706T1/en not_active IP Right Cessation
- 1999-05-26 SI SI9930710T patent/SI1002602T1/en unknown
- 1999-05-26 ES ES99110195T patent/ES2230767T3/en not_active Expired - Lifetime
- 1999-11-12 US US09/438,636 patent/US6363995B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004047841A1 (en) * | 2004-09-29 | 2006-04-20 | Hydro Aluminium Alucast Gmbh | Method of making castings and insert for castings |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE277706T1 (en) | 2004-10-15 |
| SI1002602T1 (en) | 2005-04-30 |
| US6363995B1 (en) | 2002-04-02 |
| DE19853803C1 (en) | 2000-03-30 |
| ES2230767T3 (en) | 2005-05-01 |
| DK1002602T3 (en) | 2005-01-24 |
| EP1002602A1 (en) | 2000-05-24 |
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