EP1704319A1 - Zylinderkurbelgehäuse mit zylinderlaufbuchse - Google Patents
Zylinderkurbelgehäuse mit zylinderlaufbuchseInfo
- Publication number
- EP1704319A1 EP1704319A1 EP04803358A EP04803358A EP1704319A1 EP 1704319 A1 EP1704319 A1 EP 1704319A1 EP 04803358 A EP04803358 A EP 04803358A EP 04803358 A EP04803358 A EP 04803358A EP 1704319 A1 EP1704319 A1 EP 1704319A1
- 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.)
- Granted
Links
- 230000007704 transition Effects 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 description 13
- 239000000155 melt Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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 than the cast material.
- a basic challenge when casting cylinder liners into a cylinder crankcase is to create a good connection between the cylinder crankcase and the cylinder liner. As far as possible, a firm connection must be established when the cylinder crankcase is poured in.
- An improvement in the connection between the cylinder crankcase and the cylinder liner can be achieved, for example, by surface treatment of the cylinder liner, DE 101 53 305 AI being mentioned as an example.
- the geometrical design of the casting tool allows the melt flow to be controlled in such a way that a possible flow along the outside of the cylinder liner. high flow velocity is achieved and thereby a disruptive oxide skin on the surface of the cylinder liner is broken open.
- DE 101 53 721 AI discloses a cylinder liner which has a chamfer on an oil space side of the cylinder crankcase.
- the object of the invention is to provide an improved connection between the cylinder liner and the cylinder crankcase.
- the cylinder crankcase according to claim 1 has at least one cylinder liner.
- the following arrangement of the cylinder liners is therefore suitable for all internal combustion engines of any number with cylinder liners.
- the cylinder liner is cast into the cylinder crankcase, the cylinder liner in the cylinder crankcase extending from a cylinder head side to an oil space side.
- the cylinder liner has an inside that forms a so-called cylinder tube and it has an outside that is directly encapsulated by the cylinder crankcase.
- the cylinder crankcase according to claim 1 is characterized in that the cylinder liner is longer at least at one end, that is to say either on the oil chamber side or on the cylinder head side on the inside in the axial direction than on the outside.
- the transition from the inside to the outside is designed in the form of circumferential, concentric steps. W hen casting the casting metal in a mold cavity for forming the cylinder block makes the melt to the, already fixed in the mold cavity cylinder liner, wherein the melt flow is directed in such a way that it first is aimed at one end of the cylinder liner.
- the melt is swirled by the steps attached to this end of the cylinder liner, as a result of which the oxide skin which is present on the surface of the cylinder liner has been broken up into this area and a better melting of the casting metal onto the cylinder liner is achieved.
- the stepped cylinder liner according to the invention has the advantage that the cylinder liner is prevented from being set in the direction of an oil chamber of the cylinder crankcase. This is due to the fact that the area which is recessed by the stepped cylinder liner is filled with the casting metal and is therefore in a fixed connection with the actual body of the cylinder crankcase. This encapsulation prevents the cylinder liner from slipping. The graduation of the cylinder liner prevents the cylinder liner from setting more than if the liner were designed with a conventional straight bevel.
- the step shape of the bushing end has the advantage that a melting surface, which is available to the melt for connection to the cylinder liner, is enlarged.
- the enlargement of the melting surface compared to a 45 ° bevel with a right-angled step shape is twice the root, thus an increase of about 40%.
- the steps are attached to the cylinder liner on an oil space side, since the sprue of the melt and thus the melt flow in most cylinder crankcases takes place from an oil space side.
- the step is already introduced simply by tapping the cylinder liner from the tube, which can prevent an additional work step.
- FIG. 2 an illustration of a stepped cylinder liner 3 a to c, three variations of the step shape, deviating from the rectangular step shape,
- Fig. 4 the separation of a cylinder liner from a tube with a stepped turning tool.
- 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 it has an end 16 which is located on an oil space side 8 of the cylinder crankcase 4 (oil chamber side end 16).
- the cylinder liner 2 has an inner side 10 which surrounds the cylinder tube 12, a piston 28 being arranged axially movable in the cylinder tube 12. Furthermore, 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 inside 10 with respect to the axial direction 20 than on the outside 14. The transition takes place through, in this case four right-angled, radially rotating steps 22.
- the arrows 30 schematically illustrate the course of a melt flow during the casting of the cylinder crankcase 4. This melt flow meets the stages 22 of the cylinder liner 2.
- the impact of the liquid metal in this example an aluminum alloy, causes it to swirl, one on the surface of the cylinder liner adhering oxide skin is broken. When the casting metal solidifies, a firm connection is created 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 from being moved towards the oil space side 8 under the action of force. A so-called setting of the cylinder liner 2 is thus prevented.
- FIG. 2 shows a partial section through a cylinder liner 2, which also has rectangular steps.
- Figures 3 a to c show step shapes that differ from the rectangular cross section.
- the step edges are rounded.
- the steps deviate from a right angle both in the vertical and in the horizontal direction (FIGS. 3b, 3c).
- a tube 26 is shown schematically in FIG. 4, from which a cylinder liner is separated.
- a parting tool 24 is used, which has a stepped contour 34, which introduces the gradation 22 when the cylinder liner 2, not shown here, is turned off.
- the stepped turning tool 24 has the advantage that the step 22 is introduced directly when the cylinder liner is turned off. A possible additional process step, which might be necessary due to the subsequent introduction of the steps, is thus avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10360739A DE10360739B4 (de) | 2003-12-23 | 2003-12-23 | Zylinderkurbelgehäuse mit Zylinderlaufbuchse |
| PCT/EP2004/013573 WO2005066480A1 (de) | 2003-12-23 | 2004-11-30 | Zylinderkurbelgehäuse mit zylinderlaufbuchse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1704319A1 true EP1704319A1 (de) | 2006-09-27 |
| EP1704319B1 EP1704319B1 (de) | 2007-08-01 |
Family
ID=34706470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04803358A Expired - Fee Related EP1704319B1 (de) | 2003-12-23 | 2004-11-30 | Zylinderkurbelgehäuse mit zylinderlaufbuchse |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7543556B2 (de) |
| EP (1) | EP1704319B1 (de) |
| DE (2) | DE10360739B4 (de) |
| WO (1) | WO2005066480A1 (de) |
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 |
| WO2008124464A1 (en) * | 2007-04-04 | 2008-10-16 | Gkn Sinter Metals, Llc. | Multi-piece thin walled powder metal cylinder liners |
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 (de) * | 1986-09-01 | 1988-03-10 | Kloeckner Humboldt Deutz Ag | Brennkraftmaschine mit fluessigkeitsgekuehlter zylinderlaufbuchse |
| JPH01157755A (ja) * | 1987-12-15 | 1989-06-21 | Mazda Motor Corp | 異種材の鋳ぐるみ鋳造方法 |
| EP0554575B1 (de) * | 1992-01-06 | 1997-03-19 | Honda Giken Kogyo Kabushiki Kaisha | Zylinderblock |
| 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 (ja) * | 1994-04-20 | 1999-02-17 | 本田技研工業株式会社 | シリンダブロック |
| JPH10220278A (ja) * | 1997-02-10 | 1998-08-18 | Toyota Motor Corp | 内燃機関のシリンダブロックおよびその製造方法 |
| DE19755557C1 (de) * | 1997-12-13 | 1999-02-04 | Vaw Alucast Gmbh | Gießform zur Herstellung eines Motorblocks |
| US5850814A (en) * | 1998-04-07 | 1998-12-22 | Ford Global Technologies, Inc. | Cylinder bore isolator core for casting engine cylinder blocks |
| JP2000064902A (ja) * | 1998-08-21 | 2000-03-03 | Toyota Motor Corp | シリンダライナ鋳ぐるみアルミシリンダブロック |
| US6123052A (en) * | 1998-08-27 | 2000-09-26 | Jahn; George | Waffle cast iron cylinder liner |
| DE19853803C1 (de) * | 1998-11-21 | 2000-03-30 | Vaw Alucast Gmbh | Vorrichtung und Verfahren für die Herstellung eines Motorblocks |
| JP2001003807A (ja) * | 2000-01-01 | 2001-01-09 | Honda Motor Co Ltd | シリンダスリーブ構造 |
| DE10147219B4 (de) * | 2001-09-24 | 2004-02-26 | Daimlerchrysler Ag | Zylinderlaufbuchse einer Brennkraftmaschine |
| DE10153721C5 (de) * | 2001-10-31 | 2011-04-28 | Daimler Ag | Gießwerkzeug zur Herstellung eines Zylinderkurbelgehäuses |
| DE10153305A1 (de) * | 2001-10-31 | 2003-05-28 | Daimler Chrysler Ag | Verfahren zum Eingießen eines metallischen Halbzeugs |
-
2003
- 2003-12-23 DE DE10360739A patent/DE10360739B4/de not_active Expired - Fee Related
-
2004
- 2004-11-30 WO PCT/EP2004/013573 patent/WO2005066480A1/de not_active Ceased
- 2004-11-30 DE DE502004004537T patent/DE502004004537D1/de not_active Expired - Lifetime
- 2004-11-30 EP EP04803358A patent/EP1704319B1/de not_active Expired - Fee Related
- 2004-11-30 US US10/584,016 patent/US7543556B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005066480A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US7543556B2 (en) | 2009-06-09 |
| US20070240669A1 (en) | 2007-10-18 |
| DE10360739B4 (de) | 2007-10-31 |
| WO2005066480A1 (de) | 2005-07-21 |
| EP1704319B1 (de) | 2007-08-01 |
| DE502004004537D1 (de) | 2007-09-13 |
| DE10360739A1 (de) | 2005-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE4322832C2 (de) | Aus Stahl geschmiedetes Pleuel | |
| EP0919715B1 (de) | Zylinderlaufbuchse | |
| WO1996020340A1 (de) | Verfahren zur herstellung eines einteiligen kühlkanalkolbens | |
| DE2136594A1 (de) | Kolben mit einem die Mundung des Verbrennungsraumes umgebenden Einsatz stuck aus Metallegierung auf Kupferbasis | |
| DE10218999B4 (de) | Kolben mit Ringträger und Formkühlkanal | |
| WO2016120246A1 (de) | Kolben für einen verbrennungsmotor sowie verfahren zur herstellung des kolbens für einen verbrennungsmotor | |
| DE19908670C2 (de) | Kolben für Brennkraftmaschinen | |
| EP1828586B1 (de) | Kolbenfenster mit scuppersolts und freiguss | |
| AT393409B (de) | Gegossener zylinder fuer zweitakt- brennkraftmaschinen | |
| EP1704319B1 (de) | Zylinderkurbelgehäuse mit zylinderlaufbuchse | |
| DE10129046A1 (de) | Kolben für eine Brennkraftmaschine mit einem Eingußkörper | |
| DE10152316B4 (de) | Verfahren zur Herstellung eines Kolbens | |
| DE4338571C2 (de) | Kolben für einen Verbrennungsmotor | |
| EP1439927B1 (de) | Zylinderkurbelgehäuse mit einer zylinderlaufbuchse und giesswerkzeug | |
| DE102006045729A1 (de) | Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung | |
| DE19733814C2 (de) | Motorkolben | |
| DE10126493B4 (de) | Kolben mit zu den Hauptachsen geneigtem Kühlkanal | |
| DE3812479C2 (de) | ||
| DE1075379B (de) | Leichtmetallkolben für Brennkraftmaschinen mit Kühlmittelkanälcn und Verfahren zu ihrer Herstellung | |
| DE102005023902A1 (de) | Kurbelgehäuse, Ölkanalkern zur Herstellung eines Kurbelgehäuses und Verfahren zur Herstellung eines Kurbelgehäuses | |
| DE3714400A1 (de) | Kolben fuer brennkraftmaschinen | |
| DE4415413A1 (de) | Gießverfahren zur Herstellung einer Kombination aus Motorblock und Zylinderkopf für einen Doppelkolbenmotor und einer Form für dessen Produktion | |
| DE10218998A1 (de) | Gewichtsreduzierter Kühlkanal | |
| EP0881019A1 (de) | Verfahren zur Herstellung von metallischen Giesslingen, metallischer Giessling, sowie Hubkolbenbrennkraftmaschine | |
| DE1224985B (de) | Hubkolbenbrennkraftmaschine mit stehender Anordnung des Zylinders |
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 |