EP0334855B1 - Piston-fourreau refroidissable pour moteurs a combustion interne - Google Patents
Piston-fourreau refroidissable pour moteurs a combustion interne Download PDFInfo
- Publication number
- EP0334855B1 EP0334855B1 EP87907219A EP87907219A EP0334855B1 EP 0334855 B1 EP0334855 B1 EP 0334855B1 EP 87907219 A EP87907219 A EP 87907219A EP 87907219 A EP87907219 A EP 87907219A EP 0334855 B1 EP0334855 B1 EP 0334855B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- wall
- annular wall
- annular
- cavity
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 6
- 239000002184 metal Substances 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000002788 crimping Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 description 6
- 238000007373 indentation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/0069—Multi-part pistons the crown and skirt being interconnected by the gudgeon pin
-
- 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
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
- F01M2001/086—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating gudgeon pins
-
- 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
- F02F3/00—Pistons
- F02F3/0015—Multi-part pistons
- F02F3/003—Multi-part pistons the parts being connected by casting, brazing, welding or clamping
- F02F2003/0061—Multi-part pistons the parts being connected by casting, brazing, welding or clamping by welding
Definitions
- the invention relates to a coolable plunger for internal combustion engines according to the preamble of claim 1.
- Such pistons are known from US-PS 43 77 967.
- the wall part (shaped sheet metal) used there to cover the cavity forming the cooling oil chamber is crimped onto the outer circumference of the ring wall carrying the piston rings. This type of fastening is unsafe because flanging of the relatively thin-walled wall part can become detached in the long term in motor operation.
- the invention has for its object to provide a cover in the genus known from US-A-43 77 967, which on the one hand ensures movements of the lower end of the outer ring wall of the piston head and on the other hand is sufficiently securely attached to the piston head.
- the collar protruding beyond the ring wall, which is flanged around the wall part, can be made much thicker than the wall part itself and thereby provide a more stable flared connection.
- the presence of joints between the multi-part cover wall ensures the necessary freedom of movement of the outer ring wall of the piston head.
- the multi-part structure of the wall part enables the cooling oil annulus to be completely covered over its entire open area. With a one-piece design of the wall part, on the other hand, this would not be possible, since the cross sections of the pin bosses of the piston head taper from the free end of a hub to the piston head base, so that a one-piece wall part completely covering the cooling oil annulus would not be able to be pushed over the hubs.
- the piston consists overall of a head part 1, on the hubs 2 of which a piston shaft 3 is articulated via a piston pin (not shown).
- An outer ring wall 4 containing the grooves for the piston rings extends from the bottom of the head part 1. Radially at a distance within the ring wall 4, an annular rib 5 connects the hubs 2 to the piston head. Between the annular rib 5 and the annular wall 4 there is an annular cavity 6, which is covered by a sheet metal part 7, which has the shape of an annular recess, to form a closed annular space. The cavity 6 can be acted upon by cooling oil through the sheet metal part 7.
- the bleaching part 7 lies against the inner edge of the free end ring surface of the ring wall 4 and is held there by a collar 8 which flares radially inwards and extends from the outer edge of the ring wall.
- the bleaching part 7 is separated radially into two halves. These halves abut each other on joints 9.
- the oil supply into the annular cavity 6 takes place through an indentation 10 provided on the inner edge of the bleaching part 7.
- the oil is discharged through a diametrically opposite opening 11 which can lie in the bottom of the annular trough of the bleaching part 7.
- the opening 11 can also be provided as an indentation on the inner edge of the bleaching part 7 and thus correspond to the formation of the oil supply opening.
- the annular rib 5 contains radial bores 12. In order to achieve a shaker effect in the space 13 lying radially inside the annular rib 5, this is at sienem Connecting rod head facing open end covered with an additional tub-shaped bleaching part 14. The oil drain from this space can take place via the gap between this sheet metal part 14 and the annular rib 5 or the hubs 2.
- the sheet metal part 7 covering the outer annular cavity 6 can also be fastened to the outer ring wall 4 by welding or screwing instead of by flanging.
- a weld is shown in Fig. 3 and a screw in Fig. 4.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863643039 DE3643039A1 (de) | 1986-12-17 | 1986-12-17 | Kuehlbarer tauchkolben fuer verbrennungsmotoren |
| DE3643039 | 1986-12-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0334855A1 EP0334855A1 (fr) | 1989-10-04 |
| EP0334855B1 true EP0334855B1 (fr) | 1990-08-08 |
Family
ID=6316366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87907219A Expired - Lifetime EP0334855B1 (fr) | 1986-12-17 | 1987-10-24 | Piston-fourreau refroidissable pour moteurs a combustion interne |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5052280A (fr) |
| EP (1) | EP0334855B1 (fr) |
| JP (1) | JPH02501153A (fr) |
| BR (1) | BR8707917A (fr) |
| DE (2) | DE3643039A1 (fr) |
| WO (1) | WO1988004725A1 (fr) |
Families Citing this family (60)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4867119A (en) * | 1988-10-21 | 1989-09-19 | Caterpillar Inc. | Engine piston assembly and forged piston member therefor having a cooling recess |
| BR8807857A (pt) | 1988-10-21 | 1990-11-13 | Caterpillar Inc | Motor que inclui um pistao que tem uma ranhura para anel superior alta |
| IN175093B (fr) * | 1988-10-21 | 1995-04-29 | Caterpillar Inc | |
| US4986167A (en) * | 1989-05-25 | 1991-01-22 | Caterpillar Inc. | Articulated piston with a cooling recess having a preestablished volume therein |
| DE3919872A1 (de) * | 1989-06-19 | 1990-12-20 | Mahle Gmbh | Tauchkolben fuer verbrennungsmotoren mit einem kuehloeldurchfluteten kolbenkopf |
| BR9001916A (pt) * | 1990-04-20 | 1991-11-12 | Metal Leve Sa | Processo de obtencao de embolo refrigerado e embolo refrigerado |
| BR9005371A (pt) * | 1990-10-18 | 1992-06-16 | Metal Leve Sa | Processo de fabricacao de embolo com galeria de refrigeracao |
| BR9005376A (pt) * | 1990-10-18 | 1992-06-16 | Metal Leve Sa | Embolo bipartido com fechamento postico de galeria e processo para sua obtencao |
| DE4039752A1 (de) * | 1990-12-13 | 1992-06-17 | Mahle Gmbh | Mehrteiliger, gekuehlter kolben fuer verbrennungsmotoren |
| DE4039754A1 (de) * | 1990-12-13 | 1992-06-17 | Mahle Gmbh | Mehrteiliger, gekuehlter kolben fuer verbrennungsmotoren |
| EP0561817B1 (fr) * | 1990-12-13 | 1995-04-12 | Mahle Gmbh | Piston compose refroidi pour moteurs a combustion interne |
| DE4039751A1 (de) * | 1990-12-13 | 1992-06-17 | Mahle Gmbh | Mehrteililger, gekuehlter kolben fuer verbrennungsmotoren |
| DE4124634A1 (de) * | 1991-07-25 | 1993-01-28 | Mahle Gmbh | Mehrteiliger, gekuehlter kolben fuer verbrennungsmotoren |
| DE4208037C2 (de) * | 1992-03-13 | 1998-03-26 | Mahle Gmbh | Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren |
| DE4342044B4 (de) * | 1993-12-09 | 2006-08-31 | Mahle Gmbh | Kolben für einen Verbrennungsmotor |
| DE4430137B4 (de) * | 1994-08-25 | 2004-07-22 | Mahle Gmbh | Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren |
| DE4446726A1 (de) * | 1994-12-24 | 1996-06-27 | Mahle Gmbh | Verfahren zur Herstellung eines einteiligen Kühlkanalkolbens |
| DE19720958B4 (de) * | 1997-05-17 | 2007-07-26 | Mahle Gmbh | Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren |
| DE19747944A1 (de) * | 1997-10-30 | 1999-05-06 | Mahle Gmbh | Kolben mit zentralem Kühlraum |
| DE19846496A1 (de) * | 1998-10-09 | 2000-04-13 | Mahle Gmbh | Kolben für einen Verbrennungsmotor |
| GB9909033D0 (en) * | 1999-04-19 | 1999-06-16 | Seneca Tech Ltd | Piston coolant path |
| US6327962B1 (en) * | 1999-08-16 | 2001-12-11 | Caterpillar Inc. | One piece piston with supporting piston skirt |
| US6286414B1 (en) * | 1999-08-16 | 2001-09-11 | Caterpillar Inc. | Compact one piece cooled piston and method |
| DE10040486C2 (de) * | 2000-08-18 | 2002-10-31 | Ks Kolbenschmidt Gmbh | Stahlkolben |
| US6494170B2 (en) * | 2000-12-01 | 2002-12-17 | Caterpillar Inc | Two-piece piston assembly with skirt having pin bore oil ducts |
| US6499387B2 (en) | 2001-03-06 | 2002-12-31 | Federal-Mogul World Wide, Inc. | Unified multi-piece piston and method of manufacture |
| DE10110889C1 (de) | 2001-03-07 | 2002-10-02 | Ks Kolbenschmidt Gmbh | Verfahren zur Herstellung eines Kühlkanalkolbens, sowie ein nach dem Verfahren hergestellter Kühlkanalkolben |
| US6487773B2 (en) | 2001-03-23 | 2002-12-03 | Mahle Gmbh | Method of making one-piece piston |
| US6609485B2 (en) * | 2001-03-29 | 2003-08-26 | International Engine Intellectual Property Company, Llc | Piston pin bushing cooler |
| US6513477B1 (en) | 2001-09-19 | 2003-02-04 | Federal-Mogul World Wide, Inc. | Closed gallery piston having pin bore lubrication |
| US6539910B1 (en) | 2001-09-19 | 2003-04-01 | Federal-Mogul World Wide, Inc. | Closed gallery piston having con rod lubrication |
| US6491013B1 (en) | 2001-09-19 | 2002-12-10 | Federal-Mogul World Wide, Inc. | Closed gallery piston having reinforced oil hole |
| US6532913B1 (en) * | 2001-11-27 | 2003-03-18 | Caterpillar Inc | Piston cooling fin |
| DE10301367A1 (de) * | 2003-01-16 | 2004-07-29 | Mahle Gmbh | Verfahren zum Einbringen von Shakerbohrungen in den Kühlkanal eines einteiligen Kolbens |
| DE502004008436D1 (de) | 2003-03-01 | 2008-12-24 | Ks Kolbenschmidt Gmbh | Herstellungsverfahren für einen Kühlkanalkolben mit umformbarem Bund |
| US6820582B1 (en) * | 2003-10-06 | 2004-11-23 | Mahle Gmbh | Cooling channel cover for a one-piece piston of an internal combustion engine |
| US6892690B2 (en) * | 2003-10-06 | 2005-05-17 | Mahle Gmbh | Cooling channel cover for a one-piece piston of an internal combustion engine |
| US6920860B2 (en) * | 2003-10-06 | 2005-07-26 | Mahle Gmbh | Cooling channel cover for a one-piece piston of an internal combustion engine |
| US6938604B2 (en) * | 2003-10-06 | 2005-09-06 | Mahle Gmbh | Cooling channel cover for a one-piece piston of an internal combustion engine |
| DE10346819A1 (de) | 2003-10-06 | 2005-04-21 | Mahle Gmbh | Einteiliger Kolben für einen Verbrennungsmotor |
| DE102004031513A1 (de) | 2004-06-30 | 2006-01-26 | Ks Kolbenschmidt Gmbh | Verfahren zur Herstellung eines Kühlkanalkolbens für eine Brennkraftmaschine |
| DE102004057284A1 (de) * | 2004-11-26 | 2006-06-14 | Fev Motorentechnik Gmbh | Leichtbaukolben für thermisch hochbelastete Kolben |
| US20070074695A1 (en) * | 2005-10-04 | 2007-04-05 | Mahle Technology, Inc. | Piston having improved cooling characteristics |
| US7162990B1 (en) * | 2005-12-29 | 2007-01-16 | Mahle Technology, Inc. | Two-part piston for an internal combustion engine |
| JP4333693B2 (ja) * | 2006-05-22 | 2009-09-16 | トヨタ自動車株式会社 | 内燃機関用ピストンおよび内燃機関 |
| DE102006030699B4 (de) | 2006-06-30 | 2014-10-02 | Daimler Ag | Gegossener Stahlkolben für Verbrennungsmotoren |
| US7762227B2 (en) * | 2008-02-19 | 2010-07-27 | Federal Mogul Corporation | Coolable piston for internal combustion engine |
| US8347842B2 (en) * | 2008-02-19 | 2013-01-08 | Federal-Mogul Corporation | Coolable piston for internal combustion engine |
| DE102008055911A1 (de) * | 2008-11-05 | 2010-05-06 | Mahle International Gmbh | Mehrteiliger Kolben für einen Verbrennungsmotor sowie Verfahren zu seiner Herstellung |
| DE102008055909A1 (de) * | 2008-11-05 | 2010-05-06 | Mahle International Gmbh | Mehrteiliger Kolben für einen Verbrennungsmotor |
| DE102008055908A1 (de) * | 2008-11-05 | 2010-05-06 | Mahle International Gmbh | Mehrteiliger Kolben für einen Verbrennungsmotor |
| DE102008062219A1 (de) * | 2008-12-13 | 2010-06-17 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
| DE102011013113A1 (de) | 2011-03-04 | 2012-09-06 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung |
| DE102012014195A1 (de) * | 2012-07-18 | 2014-01-23 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor |
| RU2533265C2 (ru) * | 2013-01-09 | 2014-11-20 | Общество с ограниченной ответственностью "Краснодарский Компрессорный Завод" | Дисковый литой поршень компрессора |
| US9291119B2 (en) | 2013-03-14 | 2016-03-22 | Mahle International Gmbh | Piston assembly with preloaded support surfaces |
| US9797337B2 (en) * | 2015-07-10 | 2017-10-24 | Mahle International Gmbh | Oil-cooled piston for an internal combustion engine |
| US10316790B2 (en) | 2016-09-27 | 2019-06-11 | TennecoInc. | Piston ring-belt structural reinforcement via additive machining |
| DE102016225632A1 (de) | 2016-12-20 | 2018-06-21 | Mahle International Gmbh | Kolben einer Brennkraftmaschine |
| US11248557B1 (en) * | 2020-12-03 | 2022-02-15 | Caterpillar Inc. | Piston having oil gallery drain outlets biased in distribution to anti-thrust side |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE564842C (de) * | 1932-11-23 | Siemens & Halske Akt Ges | Einrichtung zur Kolbenbodenkuehlung von Zweitaktbrennkraftmaschinen | |
| DE438649C (de) * | 1925-03-06 | 1926-12-20 | Karl Rentzsch | Kolbenkuehlung durch Gemischstrom fuer Zweitakt-Brennkraftmaschinen mit Flachkolben |
| DE449069C (de) * | 1925-12-25 | 1927-08-31 | Karl Rentzsch | Vorrichtung fuer Kolbenkuehlung durch Luft fuer Zwei- und Viertaktmotoren |
| US1825163A (en) * | 1926-08-02 | 1931-09-29 | Schweter Erich | Device for altering the clearance space in piston machines |
| US2698210A (en) * | 1954-08-13 | 1954-12-28 | Harry C Baller | Piston oil baffle plate |
| US2911963A (en) * | 1957-11-07 | 1959-11-10 | Ricardo & Co Engineers | Internal combustion engines and pistons therefor |
| US3336844A (en) * | 1964-08-25 | 1967-08-22 | Cornet Andre | Pistons for engines with a high thermal load |
| CH422426A (de) * | 1965-06-23 | 1966-10-15 | Nova Werke Ferber Und Wran | Verfahren zur Herstellung von flüssigkeitsgekühlten Kolben und nach dem Verfahren hergestellter Kolben |
| US3805677A (en) * | 1972-03-01 | 1974-04-23 | Trw Inc | Two-piece oil-cooled piston with thermal expansion control |
| DE2539470C2 (de) * | 1975-09-05 | 1984-09-20 | Daimler-Benz Ag, 7000 Stuttgart | Flüssigkeitsgekühlter Kolben für eine Brennkraftmaschine |
| DE2543478C2 (de) * | 1975-09-30 | 1983-01-05 | Günter 8543 Hilpoltstein Elsbett | Kolben für Brennkraftmaschinen, insb. Dieselmotoren |
| US4377967A (en) * | 1981-03-27 | 1983-03-29 | Mack Trucks, Inc. | Two-piece piston assembly |
| US4506632A (en) * | 1983-07-28 | 1985-03-26 | Toyota Jidosha Kabushiki Kaisha | Piston assembly with cooling lubricant reservoir defining member engaged to piston pin mounting bosses |
| JPS60153453A (ja) * | 1984-01-24 | 1985-08-12 | Toyota Motor Corp | 内燃機関用ピストン |
-
1986
- 1986-12-17 DE DE19863643039 patent/DE3643039A1/de not_active Withdrawn
-
1987
- 1987-10-24 EP EP87907219A patent/EP0334855B1/fr not_active Expired - Lifetime
- 1987-10-24 JP JP62506636A patent/JPH02501153A/ja active Pending
- 1987-10-24 US US07/609,094 patent/US5052280A/en not_active Expired - Lifetime
- 1987-10-24 WO PCT/EP1987/000633 patent/WO1988004725A1/fr not_active Ceased
- 1987-10-24 BR BR8707917A patent/BR8707917A/pt not_active IP Right Cessation
- 1987-10-24 DE DE8787907219T patent/DE3764275D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO1988004725A1 (fr) | 1988-06-30 |
| EP0334855A1 (fr) | 1989-10-04 |
| DE3643039A1 (de) | 1988-06-30 |
| US5052280A (en) | 1991-10-01 |
| DE3764275D1 (de) | 1990-09-13 |
| JPH02501153A (ja) | 1990-04-19 |
| BR8707917A (pt) | 1989-10-31 |
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