EP0902180A3 - Leichtmetallkolben für Brennkraftmaschinen - Google Patents

Leichtmetallkolben für Brennkraftmaschinen Download PDF

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Publication number
EP0902180A3
EP0902180A3 EP98117145A EP98117145A EP0902180A3 EP 0902180 A3 EP0902180 A3 EP 0902180A3 EP 98117145 A EP98117145 A EP 98117145A EP 98117145 A EP98117145 A EP 98117145A EP 0902180 A3 EP0902180 A3 EP 0902180A3
Authority
EP
European Patent Office
Prior art keywords
piston
internal combustion
combustion engine
metal piston
lightweight metal
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
EP98117145A
Other languages
English (en)
French (fr)
Other versions
EP0902180A2 (de
EP0902180B1 (de
Inventor
Johannes Spermann
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.)
KS Kolbenschmidt GmbH
Original Assignee
KS Kolbenschmidt 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 KS Kolbenschmidt GmbH filed Critical KS Kolbenschmidt GmbH
Publication of EP0902180A2 publication Critical patent/EP0902180A2/de
Publication of EP0902180A3 publication Critical patent/EP0902180A3/de
Application granted granted Critical
Publication of EP0902180B1 publication Critical patent/EP0902180B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 
    • 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 
    • F02F3/26—Pistons  having combustion chamber in piston head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

Die Erfindung betrifft einen Leichtmetallkolben für Brennkraftmaschinen mit einem dachförmigen Kolbenboden (2) mit einer üblicherweise asymetrisch ausgebildeten Brennraummulde (4); um die Kopflastigkeit eines derartigen Kolbens zu reduzieren, wird der Kolben erfindungsgemäß so ausgebildet, dass die Naben (14) in Bolzenachsenrichtung (x) derart zurückgesetzt sind, dass der äußere Nabenabstand 60 - 65 % des Kolbendurchmessers (Dk) oder weniger beträgt, und dass oberhalb der Außenflächen (18) der zurückgesetzten Naben (14) ein in Umfangsrichtung einen Winkel (α) zwischen 45 und 60° einschließender offener Hohlraum (22) vorgesehen ist, der sich in Richtung auf den Kolbenboden (2) in den Bereich hinter dem Ringfeld (6) hineinerstreckt, und dass die Nabeninnenflächen (20) trapezförmig oder stufenförmig abgesetzt ausgebildet sind, und die Schaftlänge (Ls) 40 - 45 % des Kolbendurchmessers (Dk) beträgt.
EP98117145A 1997-09-12 1998-09-10 Leichtmetallkolben für Brennkraftmaschinen Expired - Lifetime EP0902180B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19740065A DE19740065A1 (de) 1997-09-12 1997-09-12 Leichtmetallkolben für Brennkraftmaschinen
DE19740065 1997-09-12

Publications (3)

Publication Number Publication Date
EP0902180A2 EP0902180A2 (de) 1999-03-17
EP0902180A3 true EP0902180A3 (de) 1999-12-15
EP0902180B1 EP0902180B1 (de) 2002-11-13

Family

ID=7842099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117145A Expired - Lifetime EP0902180B1 (de) 1997-09-12 1998-09-10 Leichtmetallkolben für Brennkraftmaschinen

Country Status (2)

Country Link
EP (1) EP0902180B1 (de)
DE (2) DE19740065A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002327624A (ja) * 2001-02-28 2002-11-15 Honda Motor Co Ltd 内燃機関
DE10145589B4 (de) * 2001-09-15 2006-09-14 Ks Kolbenschmidt Gmbh Kolben für eine Brennkraftmaschine
US6745745B2 (en) * 2002-02-22 2004-06-08 General Motors Corporation Combustion chamber for reverse tumble spark ignition direct injection engine
JP2005248949A (ja) * 2004-02-06 2005-09-15 Yamaha Motor Co Ltd 内燃機関
WO2007025686A1 (de) * 2005-08-29 2007-03-08 Ks Kolbenschmidt Gmbh Leichtbaukolben
DE102013009415A1 (de) * 2013-06-05 2014-12-11 Man Diesel & Turbo Se Kolben einer Brennkraftmaschine
WO2017025608A1 (de) * 2015-08-11 2017-02-16 Ks Kolbenschmidt Gmbh Kolben für eine brennkraftmaschine
US10865734B2 (en) 2017-12-06 2020-12-15 Ai Alpine Us Bidco Inc Piston assembly with offset tight land profile

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2295199A (en) * 1941-12-27 1942-09-08 Wright Aeronautical Corp Piston
DE3723005A1 (de) * 1987-07-11 1989-01-19 Mahle Gmbh Tauchkolben fuer verbrennungsmotoren
DE4110306A1 (de) * 1990-09-20 1992-03-26 Mahle Gmbh Tauchkolben aus leichtmetall fuer ottomotoren
DE4210056A1 (de) * 1992-03-27 1993-09-30 Mahle Gmbh Hubkolben eines Verbrennungsmotors
DE4229071A1 (de) * 1992-09-01 1994-03-03 Kolbenschmidt Ag Leichtmetallkolben für Brennkraftmaschinen
US5562074A (en) * 1994-09-30 1996-10-08 Dr.Ing. H.C.F. Porsche Ag Piston for internal-combustion engines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510050A1 (de) * 1995-03-20 1996-09-26 Mahle Gmbh Leichter, gegossener Kolben für Verbrennungsmotoren
DE19530631B4 (de) * 1995-08-21 2005-09-22 Mahle Gmbh Tauchkolben für Verbrennungsmotoren mit einem geteilten Kolbenbolzen
DE19537028A1 (de) * 1995-10-05 1997-04-10 Iav Gmbh Walzenförmiger Brennraum, vorzugsweise für Dieselmotoren

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2295199A (en) * 1941-12-27 1942-09-08 Wright Aeronautical Corp Piston
DE3723005A1 (de) * 1987-07-11 1989-01-19 Mahle Gmbh Tauchkolben fuer verbrennungsmotoren
DE4110306A1 (de) * 1990-09-20 1992-03-26 Mahle Gmbh Tauchkolben aus leichtmetall fuer ottomotoren
DE4210056A1 (de) * 1992-03-27 1993-09-30 Mahle Gmbh Hubkolben eines Verbrennungsmotors
DE4229071A1 (de) * 1992-09-01 1994-03-03 Kolbenschmidt Ag Leichtmetallkolben für Brennkraftmaschinen
US5562074A (en) * 1994-09-30 1996-10-08 Dr.Ing. H.C.F. Porsche Ag Piston for internal-combustion engines

Also Published As

Publication number Publication date
DE19740065A1 (de) 1999-03-18
EP0902180A2 (de) 1999-03-17
EP0902180B1 (de) 2002-11-13
DE59806259D1 (de) 2002-12-19

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