EP1704319B1 - Cylinder crankcase comprising a cylinder liner - Google Patents
Cylinder crankcase comprising a cylinder liner Download PDFInfo
- Publication number
- EP1704319B1 EP1704319B1 EP04803358A EP04803358A EP1704319B1 EP 1704319 B1 EP1704319 B1 EP 1704319B1 EP 04803358 A EP04803358 A EP 04803358A EP 04803358 A EP04803358 A EP 04803358A EP 1704319 B1 EP1704319 B1 EP 1704319B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- cylinder liner
- crankcase
- liner
- cylinder crankcase
- 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 - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
-
- 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
-
- 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
- B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
Definitions
- the invention relates to a cylinder crankcase with at least one cylinder liner according to the preamble of claim 1.
- cylinder liners are used in particular in light metal engines, which have a higher wear resistance compared to the Umgussmaterial.
- a fundamental challenge in casting cylinder liners into a cylinder crankcase is to provide a good connection between the cylinder crankcase and the cylinder liner.
- a solid connection must be made.
- An improvement in the connection between the cylinder crankcase and cylinder liner can be achieved, for example, by a surface treatment of the cylinder liner, here is an example of the DE 101 53 305 A1 called.
- a surface treatment of the cylinder liner here is an example of the DE 101 53 305 A1 called.
- An example of this measure is in the DE 101 53 721 A1 given.
- a cylinder liner is disclosed which has a chamfer on an oil chamber side of the cylinder crankcase.
- the JP-10 220278-A shows a crankcase with a cast-in this cylinder liner, which has on its side facing the cylinder head circumferentially an annular recess in which an inorganic fiber body is embedded.
- the fiber body extends radially into a likewise annular recess of the crankcase.
- a mold for the preparation of an engine block can be removed, in which an annular recess in a cylinder liner is received, the wall near the recess has an axially spaced recess to the recess.
- the liquid casting compound penetrates into the gap, so that the cylinder liner is gripped by the solidifying casting.
- the wall is processed so far that the paragraph disappears.
- a narrow portion of the encapsulation is removed, so that the encapsulation is flush with the inner wall of the remaining part of the cylinder liner.
- the object of the invention is to provide an improved connection between the cylinder liner and the cylinder crankcase.
- the solution of the problem consists in a cylinder crankcase with at least one cylinder liner with the features of claim 1.
- the cylinder crankcase according to claim 1 has at least one cylinder liner.
- the following arrangement of the cylinder liners is thus suitable for all internal combustion engines of any number of cylinder liners.
- the cylinder liner is molded into the cylinder crankcase, with the cylinder liner in the cylinder crankcase extending from a cylinder head side to an oil chamber side.
- the cylinder liner has an inner side which forms a so-called cylinder tube and has an outer side which is directly encapsulated by the cylinder crankcase.
- the cylinder crankcase according to claim 1 is characterized in that the cylinder liner at at least one end, i. either oil space side or cylinder head side on the inside, seen in the axial direction, is longer than on the outside.
- the transition from the inside to the outside in the form of circumferential concentric steps is designed.
- the melt As the cast metal is poured into a mold cavity to form the cylinder crankcase, the melt impinges upon the cylinder liner already fixed in the mold cavity, the melt flow being directed such that it first targets one end of the cylinder liner.
- the melt By the steps, which are attached to this end of the cylinder liner, the melt is fluidized, whereby the oxide skin, which is present on the surface of the cylinder liner has been broken into this area and a better melting of the casting metal is achieved to the cylinder liner.
- the stepped cylinder liner according to the invention has the advantage that a setting the cylinder liner is prevented in the direction of an oil chamber of the cylinder crankcase. This is because the region recessed by the stepped cylinder liner is filled by the casting metal and is thus fixedly connected to the actual body of the cylinder crankcase. Slipping of the cylinder liner is prevented by this encapsulation. Due to the gradation of the cylinder liner setting of the cylinder liner is prevented more than if the socket would be configured with a conventional straight chamfer.
- the stepped shape of the bushing end still has the advantage that a melting surface, which is available to the melt for connection to the cylinder liner, is increased.
- a melting surface which is available to the melt for connection to the cylinder liner.
- the enlargement of the melting surface compared to a 45 ° bevel in a rectangular step shape is the root-double, therefore an enlargement of about 40%.
- the stages are attached to the cylinder liner on an oil chamber side, since the casting of the melt and thus the melt flow takes place in most cylinder crankcases from an oil chamber side.
- the cylinder liner when the cylinder liner is separated from a pipe, it is expedient to apply a stepped cutting tool.
- the gradation is already introduced by the tapping of the cylinder liner of the pipe, which can prevent an additional step.
- FIG. 1 shows a schematic, simplified illustration of a cylinder crankcase with a cylinder tube 12, which is formed by a cylinder liner 2 cast into the cylinder crankcase 4.
- the cylinder liner 2 has an end 18 which is located on a cylinder head side 6 of the cylinder crankcase 4 and has an end 16 which is located on an oil chamber 8 side of the cylinder crankcase 4 (oil space side end 16).
- the cylinder liner 2 has an inner side 10 which surrounds the cylinder tube 12, wherein in the cylinder tube 12, a piston 28 is arranged axially movable. Further, the cylinder liner 2 has an outer side 14, to which the cylinder crankcase 4 is cast by casting.
- the cylinder liner 2 is designed in such a way that it is longer on its inner side 10 with respect to the axial direction 20 than on the outer side 14. The transition takes place through, in this case, four right-angled, radially encircling steps 22.
- the arrows 30 schematically illustrate the course of a melt stream when casting the cylinder crankcase 4.
- This melt stream impinges on the steps 22 of the cylinder liner 2.
- the impact of the liquid metal, in this example an aluminum alloy this is swirled, one on the surface of the Cylinder liner adhering oxide skin is broken.
- a solid resulting by alloying connection between the cylinder liner 2 and the cylinder crankcase 4.
- the projections 32 which form part of the cylinder crankcase 4, further prevent the cylinder liner 2 is moved under the action of force in the direction of the oil chamber 8 side. Thus, a so-called setting of the cylinder liner 2 is prevented.
- FIG. 2 shows a partial section through a cylinder liner 2, which likewise has right-angled steps.
- FIGS. 3 a to c show step shapes that deviate from the rectangular cross section.
- the step edges are rounded. It may also be expedient, in particular taking into account the production technology, that the steps deviate from a perpendicularity both in the vertical and in the horizontal direction (FIGS. 3b, 3c).
- a pipe 26 is shown schematically, from which a cylinder liner is separated.
- a Abstechm foiled 24 is used, which has a stepped contour 34, which brings the gradation 22 during turning of the cylinder liner 2, not shown here.
- the stepped turning tool 24 has the advantage that the step 22 is introduced directly when turning the cylinder liner. A possible additional process step, which would possibly be necessary by the subsequent introduction of the steps, is thus avoided.
Description
Die Erfindung betrifft ein Zylinderkurbelgehäuse mit mindestens einer Zylinderlaufbuchse nach dem Oberbegriff des Anspruchs 1.The invention relates to a cylinder crankcase with at least one cylinder liner according to the preamble of claim 1.
Zur Begegnung der hohen Verschleißbedingung, die in modernen Motoren im Bereich der Zylinderlauffläche auftreten, werden insbesondere in Leichtmetallmotoren Zylinderlaufbuchsen eingesetzt, die gegenüber dem Umgussmaterial eine höhere Verschleißbeständigkeit aufweisen.To meet the high wear condition that occur in modern engines in the area of the cylinder surface, cylinder liners are used in particular in light metal engines, which have a higher wear resistance compared to the Umgussmaterial.
Eine grundsätzliche Herausforderung beim Eingießen von Zylinderlaufbuchsen in ein Zylinderkurbelgehäuse besteht darin, eine gute Verbindung zwischen dem Zylinderkurbelgehäuse und der Zylinderlaufbuchse zu schaffen. Hierbei muss bereits beim Eingießen des Zylinderkurbelgehäuses möglichst eine feste Verbindung hergestellt werden.A fundamental challenge in casting cylinder liners into a cylinder crankcase is to provide a good connection between the cylinder crankcase and the cylinder liner. Here, as far as possible when casting the cylinder crankcase a solid connection must be made.
Eine Verbesserung der Verbindung zwischen Zylinderkurbelgehäuse und Zylinderlaufbuchse kann beispielsweise durch eine Oberflächenbehandlung der Zylinderlaufbuchse erzielt werden, hierbei sei exemplarisch die
Die
Des Weiteren ist aus der
Die Aufgabe der Erfindung besteht darin, eine verbesserte Anbindung zwischen der Zylinderlaufbuchse und dem Zylinderkurbelgehäuse.bereitzustellen.The object of the invention is to provide an improved connection between the cylinder liner and the cylinder crankcase.
Die Lösung der Aufgabe besteht in einem Zylinderkurbelgehäuse mit mindestens einer Zylinderlaufbuchse mit den Merkmalen des Patentanspruchs 1.The solution of the problem consists in a cylinder crankcase with at least one cylinder liner with the features of claim 1.
Das Zylinderkurbelgehäuse nach Patentanspruch 1 weist mindestens eine Zylinderlaufbuchse auf. Die folgende Anordnung der Zylinderlaufbuchsen ist somit für alle Brennkraftmaschinen beliebiger Anzahl von mit Zylinderlaufbuchsen geeignet. Die Zylinderlaufbuchse ist in das Zylinderkurbelgehäuse eingegossen, wobei die Zylinderlaufbuchse im Zylinderkurbelgehäuse von einer Zylinderkopfseite zu einer Ölraumseite verläuft. Die Zylinderlaufbuchse weist eine Innenseite auf, die ein sogenanntes Zylinderrohr bildet und sie weist eine Außenseite auf, die von Zylinderkurbelgehäuse direkt umgossen ist.The cylinder crankcase according to claim 1 has at least one cylinder liner. The following arrangement of the cylinder liners is thus suitable for all internal combustion engines of any number of cylinder liners. The cylinder liner is molded into the cylinder crankcase, with the cylinder liner in the cylinder crankcase extending from a cylinder head side to an oil chamber side. The cylinder liner has an inner side which forms a so-called cylinder tube and has an outer side which is directly encapsulated by the cylinder crankcase.
Das Zylinderkurbelgehäuse nach Anspruch 1 zeichnet sich dadurch aus, dass die Zylinderlaufbuchse an mindestens einem Ende, d.h. entweder ölraumseitig oder zylinderkopfseitig an der Innenseite, in axialer Richtung gesehen, länger ist als an der Außenseite. Hierbei ist der Übergang von der Innenseite zur Außenseite in Form von umlaufenden, konzentrischen Stufen ausgestaltet.The cylinder crankcase according to claim 1 is characterized in that the cylinder liner at at least one end, i. either oil space side or cylinder head side on the inside, seen in the axial direction, is longer than on the outside. Here, the transition from the inside to the outside in the form of circumferential concentric steps is designed.
Beim Eingießen des Gießmetalls in einen Formhohlraum zur Ausbildung des Zylinderkurbelgehäuses trifft die Schmelze auf die, bereits im Formhohlraum fixierte Zylinderlaufbuchse, wobei der Schmelzenfluss in derart gerichtet ist, dass er zuerst auf ein Ende der Zylinderlaufbuchse zielt. Durch die Stufen, die an diesem Ende der Zylinderlaufbuchse angebracht sind, wird die Schmelze verwirbelt, wodurch die Oxidhaut, die auf der Oberfläche der Zylinderlaufbuchse vorhanden ist, in diesen Bereich aufgebrochen wurde und ein besseres Anschmelzen des Gießmetalles an die Zylinderlaufbuchse erzielt wird.As the cast metal is poured into a mold cavity to form the cylinder crankcase, the melt impinges upon the cylinder liner already fixed in the mold cavity, the melt flow being directed such that it first targets one end of the cylinder liner. By the steps, which are attached to this end of the cylinder liner, the melt is fluidized, whereby the oxide skin, which is present on the surface of the cylinder liner has been broken into this area and a better melting of the casting metal is achieved to the cylinder liner.
Gegenüber einer Zylinderlaufbuchse, die an ihrer Unterseite rechtwinklig ausgestaltet ist, weist die erfindungsgemäße abgestufte Zylinderlaufbuchse den Vorteil auf, dass ein Setzen der Zylinderlaufbuchse in Richtung eines Ölraumes des Zylinderkurbelgehäuses unterbunden wird. Dies liegt daran, dass der Bereich, der durch die abgestufte Zylinderlaufbuchse ausgespart ist, durch das Gießmetall ausgefüllt ist und somit im festen Zusammenhang mit dem eigentlichen Körper des Zylinderkurbelgehäuses steht. Ein Abrutschen der Zylinderlaufbuchse wird durch diesen Umguss verhindert. Durch die Abstufung der Zylinderlaufbuchse wird ein Setzen der Zylinderlaufbuchse stärker unterbunden, als wenn die Buchse mit einer herkömmlichen geraden Fase ausgestaltet wäre.Compared to a cylinder liner, which is configured at right angles to its underside, the stepped cylinder liner according to the invention has the advantage that a setting the cylinder liner is prevented in the direction of an oil chamber of the cylinder crankcase. This is because the region recessed by the stepped cylinder liner is filled by the casting metal and is thus fixedly connected to the actual body of the cylinder crankcase. Slipping of the cylinder liner is prevented by this encapsulation. Due to the gradation of the cylinder liner setting of the cylinder liner is prevented more than if the socket would be configured with a conventional straight chamfer.
Gegenüber einer geraden Fase weist die Stufenform des Buchsenendes noch den Vorteil auf, dass eine Anschmelzoberfläche, die der Schmelze zur Verbindung mit der Zylinderlaufbuchse zur Verfügung steht, vergrößert wird. Beispielsweise beträgt die Vergrößerung der Anschmelzoberfläche gegenüber einer 45°-Fase bei einer rechtwinkligen Stufenform das wurzelzweifache, demnach also eine Vergrößerung um etwa 40%.Compared to a straight bevel, the stepped shape of the bushing end still has the advantage that a melting surface, which is available to the melt for connection to the cylinder liner, is increased. For example, the enlargement of the melting surface compared to a 45 ° bevel in a rectangular step shape is the root-double, therefore an enlargement of about 40%.
In einer bevorzugten Ausgestaltungsform der Erfindung sind die Stufen an die Zylinderlaufbuchse an einer Ölraumseite angebracht, da der Anguss der Schmelze und somit der Schmelzenstrom bei den meisten Zylinderkurbelgehäusen von einer Ölraumseite her erfolgt. Grundsätzlich kann es jedoch auch zweckmäßig sein, bei einer anderen Angießtechnik die Zylinderkopfseite der Zylinderlaufbuchse stufig auszugestalten. In diesem Fall würde bezüglich des Angießens der Schmelze dieselbe vorteilhafte Wirkung, nämlich das bessere Angießen bei einer höheren Angießoberfläche erzielt.In a preferred embodiment of the invention, the stages are attached to the cylinder liner on an oil chamber side, since the casting of the melt and thus the melt flow takes place in most cylinder crankcases from an oil chamber side. In principle, however, it may also be expedient to structurally design the cylinder head side of the cylinder liner in another sprue technique. In this case, the same advantageous effect, namely the better casting at a higher sprue surface would be achieved with respect to the casting of the melt.
Es hat sich sowohl von der Seite der Herstellungstechnik als auch von der Wirkungsweise der Stufen im eingegossenen Zustand herausgestellt, dass eine vorteilhafte Anzahl an Stufen pro Ende zwischen zwei und sechs beträgt.It has been found, both from the side of the manufacturing technique as well as the operation of the steps in the cast state, that an advantageous number of stages per end between two and six.
Insbesondere wenn die Zylinderlaufbuchse von einem Rohr abgetrennt wird, ist es hierfür zweckmäßig, einen gestuften Abstechmeißel anzuwenden. Hierbei wird allein durch das Abstechen der Zylinderlaufbuchse von dem Rohr bereits die Stufung eingebracht, was einen zusätzlichen Arbeitsschritt verhindern kann.In particular, when the cylinder liner is separated from a pipe, it is expedient to apply a stepped cutting tool. Here, the gradation is already introduced by the tapping of the cylinder liner of the pipe, which can prevent an additional step.
Vorteilhafte Ausgestaltungsformen der Erfindung werden anhand der folgenden Figuren näher erläutert.Advantageous embodiments of the invention will be explained in more detail with reference to the following figures.
Dabei zeigen:
- Fig. 1,
- eine schematische Querschnittsdarstellung durch ein Zylinderkurbelgehäuse mit einer Zylinderlaufbuchse,
- Fig. 2,
- eine Darstellung einer gestuften Zylinderlaufbuchse
- Fig. 3 a bis c,
- drei Variationen der Stufenform, abweichend von der rechteckigen Stufenform,
- Fig. 4,
- das Abtrennen einer Zylinderlaufbuchse von einem Rohr mit einem abgestuften Drehmeißel.
- Fig. 1,
- a schematic cross-sectional view through a cylinder crankcase with a cylinder liner,
- 2,
- a representation of a stepped cylinder liner
- 3 a to c,
- three variations of the step shape, different from the rectangular step shape,
- 4,
- separating a cylinder liner from a pipe with a stepped lathe tool.
In Figur 1 ist eine schematisierte, vereinfachte Abbildung eines Zylinderkurbelgehäuses mit einem Zylinderrohr 12, das von einer, in das Zylinderkurbelgehäuse 4 eingegossenen Zylinderlaufbuchse 2 gebildet wird, dargestellt. Die Zylinderlaufbuchse 2 weist ein Ende 18 auf, das sich an einer Zylinderkopfseite 6 des Zylinderkurbelgehäuses 4 befindet und sie weist ein Ende 16 auf, das sich an einer Ölraumseite 8 des Zylinderkurbelgehäuses 4 befindet (ölraumseitiges Ende 16).1 shows a schematic, simplified illustration of a cylinder crankcase with a
Die Zylinderlaufbuchse 2 weist eine Innenseite 10 auf, die das Zylinderrohr 12 umgibt, wobei in dem Zylinderrohr 12 ein Kolben 28 axial bewegbar angeordnet ist. Ferner weist die Zylinderlaufbuchse 2 eine Außenseite 14 auf, an die das Zylinderkurbelgehäuse 4 durch Umgießen angegossen ist.The
Am ölraumseitigen Ende 16 ist die Zylinderlaufbuchse 2 in derart ausgestaltet, dass sie an ihrer Innenseite 10 bezüglich der axialen Richtung 20 länger ist als an der Außenseite 14. Der Übergang erfolgt durch, in diesem Fall vier rechtwinklige, radial umlaufende Stufen 22.At the oil-chamber-
Die Pfeile 30 veranschaulichen schematisch den Verlauf eines Schmelzenstroms beim Gießen des Zylinderkurbelgehäuses 4. Dieser Schmelzenstrom trifft auf die Stufen 22 der Zylinderlaufbuchse 2. Durch das Auftreffen des flüssigen Metalles, in diesem Beispiel eine Aluminiumlegierung, wird dieses verwirbelt, wobei eine, auf der Oberfläche der Zylinderlaufbuchse anhaftende Oxidhaut aufgebrochen wird. Beim Erstarren des Gießmetalles entsteht eine feste, durch Legieren hervorgegangene Verbindung zwischen der Zylinderlaufbuchse 2 und dem Zylinderkurbelgehäuse 4.The
Die Vorsprünge 32, die einen Teil des Zylinderkurbelgehäuses 4 bilden, verhindern weiterhin, dass die Zylinderlaufbuchse 2 unter Krafteinwirkung in Richtung der Ölraumseite 8 bewegt wird. Somit wird ein sogenanntes Setzen der Zylinderlaufbuchse 2 verhindert.The
In Figur 2 ist ein Teilschnitt durch eine Zylinderlaufbuchse 2 dargestellt, die ebenfalls rechtwinklige Stufen aufweist.FIG. 2 shows a partial section through a
Die Figuren 3 a bis c zeigen Stufenformen, die von dem rechtwinkligen Querschnitt abweichen. Grundsätzlich kann es zweckmäßig sein, dass wie in Figur 3 dargestellt, die Stufenkanten abgerundet sind. Ebenfalls kann es zweckmäßig sein, insbesondere unter Berücksichtung der Fertigungstechnik, dass die Stufen sowohl in vertikaler als auch in horizontaler Richtung von einer Rechtwinkligkeit abweichen (Figur 3b, 3c).FIGS. 3 a to c show step shapes that deviate from the rectangular cross section. In principle, it may be appropriate that, as shown in Figure 3, the step edges are rounded. It may also be expedient, in particular taking into account the production technology, that the steps deviate from a perpendicularity both in the vertical and in the horizontal direction (FIGS. 3b, 3c).
In Figur 4 ist schematisch ein Rohr 26 dargestellt, von dem eine Zylinderlaufbuchse abgetrennt wird. Hierzu wird ein Abstechmeißel 24 eingesetzt, der eine gestufte Kontur 34 aufweist, die beim Abdrehen der hier nicht dargestellten Zylinderlaufbuchse 2 die Abstufung 22 einbringt. Der gestufte Drehmeißel 24 hat den Vorteil, dass die Stufung 22 direkt beim Abdrehen der Zylinderlaufbuchse eingebracht wird. Ein möglicher zusätzlicher Verfahrensschritt, der eventuell durch das nachträgliche Einbringen der Stufen nötig wäre, wird so vermieden.In Figure 4, a
Claims (3)
- A cylinder crankcase comprising at least one cylinder liner (2) which is integrally cast in the cylinder crankcase (4) and runs in the cylinder crankcase (4) from a cylinder-head side (6) to an oil-chamber side (8), the cylinder liner (2) having an inner side (10), which forms a cylinder tube (12), and an outer side (14), around which the cylinder crankcase (4) is cast completely and directly, characterized in that the at least one cylinder liner (2), at least at one end (16, 18), is longer on the inner side (10) in the axial direction than on the outer side (14), and in that the transition from the inner side (10) to the outer side (14) is effected in the form of encircling, concentric steps (22).
- The cylinder crankcase as claimed in claim 1, characterized in that the at least one end (16, 18), having steps (22), of the cylinder liner (2) is an oil-chamber-side end (16).
- The cylinder crankcase as claimed in claim 1 or 2, characterized in that the number of steps (22) per end (16, 18) is between 2 and 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10360739A DE10360739B4 (en) | 2003-12-23 | 2003-12-23 | Cylinder crankcase with cylinder liner |
| PCT/EP2004/013573 WO2005066480A1 (en) | 2003-12-23 | 2004-11-30 | Cylinder crankcase comprising a cylinder liner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1704319A1 EP1704319A1 (en) | 2006-09-27 |
| EP1704319B1 true EP1704319B1 (en) | 2007-08-01 |
Family
ID=34706470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04803358A Expired - Fee Related EP1704319B1 (en) | 2003-12-23 | 2004-11-30 | Cylinder crankcase comprising a cylinder liner |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7543556B2 (en) |
| EP (1) | EP1704319B1 (en) |
| DE (2) | DE10360739B4 (en) |
| WO (1) | WO2005066480A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7104307B2 (en) * | 2004-02-20 | 2006-09-12 | General Motors Corporation | Casting mold for engine block |
| JP2011505513A (en) * | 2007-04-04 | 2011-02-24 | ジーケーエヌ シンター メタルズ、エル・エル・シー | Thin metal powder cylinder liner consisting of multiple pieces |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4562799A (en) * | 1983-01-17 | 1986-01-07 | Cummins Engine Company, Inc. | Monolithic ceramic cylinder liner and method of making same |
| DE3629672A1 (en) * | 1986-09-01 | 1988-03-10 | Kloeckner Humboldt Deutz Ag | INTERNAL COMBUSTION ENGINE WITH LIQUID-COOLED CYLINDER BUSHING |
| JPH01157755A (en) * | 1987-12-15 | 1989-06-21 | Mazda Motor Corp | Method for casting cast-in of different kind of material |
| DE69218395T2 (en) * | 1992-01-06 | 1997-06-26 | Honda Motor Co Ltd | Cylinder block |
| US5445210A (en) * | 1992-07-17 | 1995-08-29 | Cmi International, Inc. | Casting core for forming cast-in intersecting push rod passages and oil gallery within a cylinder block |
| JP2858208B2 (en) * | 1994-04-20 | 1999-02-17 | 本田技研工業株式会社 | Cylinder block |
| JPH10220278A (en) * | 1997-02-10 | 1998-08-18 | Toyota Motor Corp | Cylinder block of an internal combustion engine and manufacture of it |
| DE19755557C1 (en) * | 1997-12-13 | 1999-02-04 | Vaw Alucast Gmbh | Mould for producing an engine block |
| US5850814A (en) * | 1998-04-07 | 1998-12-22 | Ford Global Technologies, Inc. | Cylinder bore isolator core for casting engine cylinder blocks |
| JP2000064902A (en) * | 1998-08-21 | 2000-03-03 | Toyota Motor Corp | Cylinder liner inserted aluminum cylinder block |
| US6123052A (en) * | 1998-08-27 | 2000-09-26 | Jahn; George | Waffle cast iron cylinder liner |
| DE19853803C1 (en) * | 1998-11-21 | 2000-03-30 | Vaw Alucast Gmbh | 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 |
| JP2001003807A (en) * | 2000-01-01 | 2001-01-09 | Honda Motor Co Ltd | Cylinder sleeve structure |
| DE10147219B4 (en) * | 2001-09-24 | 2004-02-26 | Daimlerchrysler Ag | Cylinder liner of an internal combustion engine |
| DE10153721C5 (en) * | 2001-10-31 | 2011-04-28 | Daimler Ag | Casting tool for producing a cylinder crankcase |
| DE10153305A1 (en) * | 2001-10-31 | 2003-05-28 | Daimler Chrysler Ag | Method for pouring a metallic semifinished product |
-
2003
- 2003-12-23 DE DE10360739A patent/DE10360739B4/en not_active Expired - Fee Related
-
2004
- 2004-11-30 EP EP04803358A patent/EP1704319B1/en not_active Expired - Fee Related
- 2004-11-30 WO PCT/EP2004/013573 patent/WO2005066480A1/en active IP Right Grant
- 2004-11-30 DE DE502004004537T patent/DE502004004537D1/en active Active
- 2004-11-30 US US10/584,016 patent/US7543556B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004004537D1 (en) | 2007-09-13 |
| US7543556B2 (en) | 2009-06-09 |
| WO2005066480A1 (en) | 2005-07-21 |
| DE10360739B4 (en) | 2007-10-31 |
| US20070240669A1 (en) | 2007-10-18 |
| EP1704319A1 (en) | 2006-09-27 |
| DE10360739A1 (en) | 2005-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19753017A1 (en) | Cylinder liner | |
| EP2625401B1 (en) | Improvements of a combustion-chamber bowl rim and of a combustion-chamber bowl base of a piston of an internal combustion engine | |
| EP2595771B1 (en) | Method for producing a cooling channel system for internal combustion engines and piston produced in this way | |
| EP1828586B1 (en) | Rotor recess with scupper slots and free casting | |
| EP3334918A1 (en) | Piston for an internal combustion engine | |
| EP2823166A1 (en) | Cast light metal piston, in particular an aluminium piston | |
| WO2009112177A1 (en) | Cylinder crankcase, and method for the production thereof | |
| WO2016120246A1 (en) | Piston for an internal combustion engine and method for producing the piston for an internal combustion engine | |
| EP1704319B1 (en) | Cylinder crankcase comprising a cylinder liner | |
| DE10235910B4 (en) | Composite of cylinder liners made of light metal alloy, method for producing a composite and method for pouring a composite | |
| EP3411585B1 (en) | Piston made of cast steel or gray cast iron for an internal combustion engine, and method for manufacturing a piston using steel casting or gray iron casting | |
| AT393409B (en) | MOLDED CYLINDER FOR TWO-STROKE COMBUSTION ENGINES | |
| DE10129046A1 (en) | Lightweight piston for IC engine has a void filled with a lighter material than that of the piston | |
| DE10003821C2 (en) | Piston, in particular a light metal piston for an internal combustion engine | |
| DE4338571C2 (en) | Pistons for an internal combustion engine | |
| DE10152316B4 (en) | Method for producing a piston | |
| DE102015221293B4 (en) | Method of manufacturing a piston for an internal combustion engine and Pistons for an internal combustion engine | |
| EP1439927B1 (en) | Cylinder crankcase having a cylinder sleeve, and casting tool | |
| DE19733814C2 (en) | Engine pistons | |
| DE10126493B4 (en) | Piston with inclined to the main axes cooling channel | |
| WO2017190952A1 (en) | Piston | |
| WO2007054299A1 (en) | One-part steel piston as a precision-casting variant with a core for the precision-casting production of a cooling channel | |
| EP0777072A1 (en) | Piston-rod connection | |
| DE10065032A1 (en) | Cylinder crankcase used for I.C. engines comprises a crankcase and a cylinder block connected to a cylinder bushing by friction welding at the end facing the housing | |
| DE4415413A1 (en) | Casting process for the production of a combination of an engine block and a cylinder head for a double-piston engine and a mould for its production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20060721 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RBV | Designated contracting states (corrected) |
Designated state(s): DE |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: DAIMLERCHRYSLER AG |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE |
|
| REF | Corresponds to: |
Ref document number: 502004004537 Country of ref document: DE Date of ref document: 20070913 Kind code of ref document: P |
|
| RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: DAIMLER AG |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20080506 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20091120 Year of fee payment: 6 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502004004537 Country of ref document: DE Effective date: 20110601 Ref country code: DE Ref legal event code: R119 Ref document number: 502004004537 Country of ref document: DE Effective date: 20110531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110531 |