EP0957256A2 - Porteur-bague pour un piston d'un moteur à combustion interne - Google Patents

Porteur-bague pour un piston d'un moteur à combustion interne Download PDF

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Publication number
EP0957256A2
EP0957256A2 EP99107244A EP99107244A EP0957256A2 EP 0957256 A2 EP0957256 A2 EP 0957256A2 EP 99107244 A EP99107244 A EP 99107244A EP 99107244 A EP99107244 A EP 99107244A EP 0957256 A2 EP0957256 A2 EP 0957256A2
Authority
EP
European Patent Office
Prior art keywords
ring carrier
sheet metal
cooling channel
combustion engine
internal combustion
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
Application number
EP99107244A
Other languages
German (de)
English (en)
Other versions
EP0957256A3 (fr
EP0957256B1 (fr
Inventor
Helmut Donner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle GmbH
Original Assignee
Mahle GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mahle GmbH filed Critical Mahle GmbH
Publication of EP0957256A2 publication Critical patent/EP0957256A2/fr
Publication of EP0957256A3 publication Critical patent/EP0957256A3/fr
Application granted granted Critical
Publication of EP0957256B1 publication Critical patent/EP0957256B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 
    • F02F3/16—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

Definitions

  • the invention relates to a ring carrier for a piston of an internal combustion engine with a sheet metal cooling duct, the is connected to the ring carrier by welding.
  • Ring carrier-cooling channel combinations are in themselves e.g. out known from US 4,907,545 or from FR 2,044,242. At These constructions are the ring carrier back for formation profiled a cooling channel so that a relatively simple, circular or cylindrical sheet the cooling channel can close. However, this requires a lot of material and processing and increases compared to a U-shaped sheet metal cooling channel, the weight of the piston.
  • JP-OS 5-240347 it is also known to im Cross section approximately C-shaped, circular sheet metal cooling channel in shrink the ring carrier and weld it to it.
  • This sheet metal part can only be made by complex Manufacture metal forming technology.
  • the invention is therefore concerned with the problem of a generic ring carrier a complex and expensive Avoid shaping the sheet metal cooling channel or the ring carrier.
  • the radially outer wall of the sheet metal cooling duct can both be formed by one as well as by both sheet metal parts or the radial outer boundary of the cooling channel can formed by the radially inner wall of the ring carrier be.
  • the weld seam is usually in the radially inner one Wall of the sheet metal cooling duct.
  • Sheet metal cooling duct By dividing the sheet metal cooling duct into two duct halves it becomes possible instead of a part that is difficult to manufacture two simple parts to use. Another advantage of Sheet metal cooling duct according to the invention is possible a variable shape with uneven cross-sections about the extent that z. B. positioned off-center Troughs may be required.
  • Ring carrier that shrinking the sheet into the ring carrier or the bending around known from DE-OS 26 24 412 of the sheet around the ring carrier can be omitted.
  • the two sheet metal parts can, for. B. as circular half-shells be formed - with a side wall of the half-shell is pulled up - as in Fig. 1 or it can be a sheet metal part as a half-shell and the second sheet metal part with an annular shape Angular profile as in Fig. 2 be formed.
  • the two halves of the cooling duct are usually together welded.
  • the parts of the sheet metal cooling channel in the Groove reinforcement pressed in and in addition can a ring carrier Centering or on the ring carrier back shoulders be in contact with the sheet metal part.
  • the piston 1 has a cooled ring carrier 2, the from a solid, circular groove reinforcement 3 made of Niresist material and one welded to the groove reinforcement 3 Sheet metal cooling duct 4, which in turn consists of 2 together welded channel halves 5 and 6.
  • the radially outer boundary of the cooling channel is due to the radially inner wall of the groove reinforcement 3 is formed.
EP19990107244 1998-05-13 1999-04-14 Porteur-bague pour un piston d'un moteur à combustion interne Expired - Lifetime EP0957256B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19821316 1998-05-13
DE1998121316 DE19821316A1 (de) 1998-05-13 1998-05-13 Ringträger für einen Kolben eines Verbrennungsmotors

Publications (3)

Publication Number Publication Date
EP0957256A2 true EP0957256A2 (fr) 1999-11-17
EP0957256A3 EP0957256A3 (fr) 2000-04-12
EP0957256B1 EP0957256B1 (fr) 2003-06-25

Family

ID=7867564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990107244 Expired - Lifetime EP0957256B1 (fr) 1998-05-13 1999-04-14 Porteur-bague pour un piston d'un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP0957256B1 (fr)
DE (1) DE19821316A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002040202A1 (fr) * 2000-11-18 2002-05-23 Mahle Gmbh Procede pour produire par coulee un piston comportant un support annulaire refroidi
DE10007616B4 (de) * 2000-02-18 2008-08-28 Federal-Mogul Nürnberg GmbH Ringträger mit Kühlkanal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10221209B4 (de) * 2002-05-13 2005-10-27 Ks Kolbenschmidt Gmbh Ringträger mit Kühlkanal für einen Kolben
DE102008031864A1 (de) * 2008-07-05 2010-01-07 Mahle International Gmbh Einlegteil für einen Kolben eines Verbrennungsmotors sowie mit dem Einlegeteil versehener Kolben oder Kolbenkopf

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2044242A5 (en) 1969-05-13 1971-02-19 Ass Eng Ltd Moulding motor pistons
DE2624412A1 (de) 1976-05-31 1977-12-15 Alcan Aluminiumwerke Verfahren zur herstellung von kolben mit einem ringkanal
US4907545A (en) 1988-12-28 1990-03-13 Caterpillar Inc. Liquid cooled piston ring carrier assembly and piston using same
JPH05240347A (ja) 1992-02-26 1993-09-17 Hino Motors Ltd エンジン用ピストン耐摩環

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7212560U (de) * 1972-06-29 Alcan Gmbh Ringträger aus Schwermetall für Kolben
JPS6441648A (en) * 1987-04-21 1989-02-13 Hino Motors Ltd Wear resistant ring with cooling cavity for piston and manufacture thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2044242A5 (en) 1969-05-13 1971-02-19 Ass Eng Ltd Moulding motor pistons
DE2624412A1 (de) 1976-05-31 1977-12-15 Alcan Aluminiumwerke Verfahren zur herstellung von kolben mit einem ringkanal
US4907545A (en) 1988-12-28 1990-03-13 Caterpillar Inc. Liquid cooled piston ring carrier assembly and piston using same
JPH05240347A (ja) 1992-02-26 1993-09-17 Hino Motors Ltd エンジン用ピストン耐摩環

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10007616B4 (de) * 2000-02-18 2008-08-28 Federal-Mogul Nürnberg GmbH Ringträger mit Kühlkanal
WO2002040202A1 (fr) * 2000-11-18 2002-05-23 Mahle Gmbh Procede pour produire par coulee un piston comportant un support annulaire refroidi
US6837298B2 (en) 2000-11-18 2005-01-04 Mahle Gmbh Method of producing by casting a piston with a cooled ring carrier
KR100865409B1 (ko) * 2000-11-18 2008-10-24 말레 게엠베하 냉각된 링 캐리어를 구비한 피스톤의 제조 방법

Also Published As

Publication number Publication date
EP0957256A3 (fr) 2000-04-12
EP0957256B1 (fr) 2003-06-25
DE19821316A1 (de) 1999-11-18

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