EP1161624B1 - Gebauter kolben - Google Patents

Gebauter kolben Download PDF

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Publication number
EP1161624B1
EP1161624B1 EP00907440A EP00907440A EP1161624B1 EP 1161624 B1 EP1161624 B1 EP 1161624B1 EP 00907440 A EP00907440 A EP 00907440A EP 00907440 A EP00907440 A EP 00907440A EP 1161624 B1 EP1161624 B1 EP 1161624B1
Authority
EP
European Patent Office
Prior art keywords
piston
multipiece
steel
piston according
hubs
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.)
Revoked
Application number
EP00907440A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1161624A1 (de
Inventor
Jochen Kortas
Stefan Lipp
Wilfried Sander
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7900418&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1161624(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mahle GmbH filed Critical Mahle GmbH
Publication of EP1161624A1 publication Critical patent/EP1161624A1/de
Application granted granted Critical
Publication of EP1161624B1 publication Critical patent/EP1161624B1/de
Anticipated expiration legal-status Critical
Revoked 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 
    • 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
    • F02F3/0023—Multi-part pistons the parts being bolted or screwed together
    • 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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F2200/00—Manufacturing
    • F02F2200/04—Forging of engine parts
    • 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
    • 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
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel

Definitions

  • the invention relates to built pistons according to the preamble of claim 1.
  • Such a piston can summarize the DE-A-44 16 120 taken as a possible embodiment become. Bottom parts made of steel are from Experts have so far considered it impractical to manufacture have been considered, especially with pistons larger diameters.
  • the invention is therefore concerned with the problem for Generic piston to provide a lower part that the required strength requirements for a at the same time, rational producibility is sufficient.
  • titanium is added to the AFP steel.
  • inexpensive AFP steel the steel 38MnVS6 has proven.
  • bushings in the hub area be dispensed with if the piston pin and / or the pin hubs are coated.
  • the use of bushings in the hub area be dispensed with if the piston pin and / or the pin hubs are coated.
  • the lower length of the piston built up is advantageous withdrawn less than 40% of the piston diameter, because this saves weight and forging Problems are avoided. Due to the higher modulus of elasticity of Steel compared to gray cast iron and aluminum is nevertheless achieved an equivalent straight line.
  • One or more recesses are machined in the base introduced to absorb cooling oil.
  • the diameter range for lower parts according to the invention begins at approx. 160 mm. Due to the increased material strength can locally - compared to cast lower parts - The wall thicknesses should be less. However partly due to the bevels required for forging also achieved higher wall thicknesses.
  • a built piston 1 consists of an upper part 2 of forged Steel with a lower part 3 made of forged AFP steel with a central screw 4 connected is.
  • the lower part is made without a socket.
  • the lower length of the lower part is less than 40% of the piston diameter.

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)
  • Clamps And Clips (AREA)
  • Braking Arrangements (AREA)
EP00907440A 1999-03-10 2000-01-25 Gebauter kolben Revoked EP1161624B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19910582A DE19910582A1 (de) 1999-03-10 1999-03-10 Gebauter Kolben
DE19910582 1999-03-10
PCT/DE2000/000199 WO2000053913A1 (de) 1999-03-10 2000-01-25 Gebauter kolben

Publications (2)

Publication Number Publication Date
EP1161624A1 EP1161624A1 (de) 2001-12-12
EP1161624B1 true EP1161624B1 (de) 2003-05-28

Family

ID=7900418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00907440A Revoked EP1161624B1 (de) 1999-03-10 2000-01-25 Gebauter kolben

Country Status (7)

Country Link
US (1) US6622613B1 (pt)
EP (1) EP1161624B1 (pt)
JP (1) JP2002539356A (pt)
KR (1) KR100573465B1 (pt)
BR (1) BR0008833B1 (pt)
DE (4) DE19910582A1 (pt)
WO (1) WO2000053913A1 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007021101A1 (de) 2007-05-03 2008-11-06 Mahle International Gmbh Legierter Stahl und dessen Verwendung

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10022035A1 (de) 2000-05-05 2001-11-08 Mahle Gmbh Verbrennungsmotor mit einem gebauten Kolben
GB2366607B (en) * 2000-09-06 2004-06-09 Federal Mogul Bradford Ltd Piston for internal combustion engine
DE60139329D1 (de) 2000-10-18 2009-09-03 Federal Mogul Corp Mehraxial geschmiedeter kolben
DE10210570A1 (de) * 2002-03-09 2003-09-18 Mahle Gmbh Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor
DE10244513A1 (de) * 2002-09-25 2004-04-08 Mahle Gmbh Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor und Verfahren zu dessen Herstellung
DE10244511A1 (de) * 2002-09-25 2004-04-15 Mahle Gmbh Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor
DE10257022A1 (de) * 2002-12-06 2004-06-17 Mahle Gmbh Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor
EP2295777B1 (en) * 2003-03-31 2016-12-07 Hitachi Metals, Ltd. Internal engine piston and its production method
US20040261752A1 (en) * 2003-06-26 2004-12-30 Wolfgang Rein Phosphatized and bushingless piston and connecting rod assembly having an internal gallery and profiled piston pin
DE102004027974A1 (de) * 2004-06-08 2005-12-29 Mahle Gmbh Gebauter Kolben und Verfahren zur Vermeidung von Beschädigungen in Kontakt zueinander stehender Flächen des Oberteiles und des Unterteiles des Kolbens
DE102004029877A1 (de) * 2004-06-19 2006-01-05 Mahle Gmbh Gebauter Kolben für einen Verbrennungsmotor
JP4838858B2 (ja) * 2005-12-17 2011-12-14 マーレ インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング 内燃機関用の２部分から成るピストン
DE102005061899A1 (de) * 2005-12-23 2007-06-28 Mahle International Gmbh Mehrteiliger Kolben für eine Verbrennungsmotor
DE102007060472A1 (de) 2007-12-14 2009-06-18 Mahle International Gmbh Zweiteiliger Kolben für einen Verbrennungsmotor
WO2010099372A2 (en) * 2009-02-27 2010-09-02 Federal-Mogul Corporation Piston with central directional oil flow and wrist pin lubrication feature and method of construction thereof
DE102010053925A1 (de) 2010-12-09 2012-06-14 Mahle International Gmbh Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung
DE102011013143A1 (de) 2011-03-04 2012-09-06 Mahle International Gmbh Kolben für einen Verbrennungsmotor sowie Verfahren zu seiner Herstellung
WO2012122291A2 (en) * 2011-03-07 2012-09-13 Cummins Intellectual Property, Inc. Engine arrangement for enhanced cooling
US9291119B2 (en) * 2013-03-14 2016-03-22 Mahle International Gmbh Piston assembly with preloaded support surfaces

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083292A (en) * 1976-06-16 1978-04-11 Caterpillar Tractor Co. Piston with high top ring location
DE2919638A1 (de) * 1979-05-16 1980-11-20 Schmidt Gmbh Karl Kolben fuer brennkraftmaschinen
DE8421300U1 (de) * 1984-07-17 1988-02-25 Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen Gebauter Kolben
BR9001859A (pt) * 1990-04-17 1991-11-12 Metal Leve Sa Processo de fabricacao de embolo e embolo
DE4024381C2 (de) * 1990-08-01 1999-01-28 Mahle Gmbh Kolben für Verbrennungsmotoren mit geschmiedeten Bereichen aus Stahl
US5136992A (en) * 1990-07-12 1992-08-11 Mahle Gmbh Piston for internal combustion engines with forged sections made of steel
DE4129746C2 (de) * 1991-09-06 1994-04-14 Man B & W Diesel Ag Gebauter Kolben für Hubkolbenmaschinen
DE4322786A1 (de) 1993-07-08 1995-01-12 Mahle Gmbh Kolben für Verbrennungsmotoren mit geschmiedeten Bereichen aus Stahl
DE4416120A1 (de) * 1994-05-06 1995-11-09 Mahle Gmbh Zweiteiliger Kolben
DE4429489A1 (de) * 1994-08-19 1996-02-22 Mahle Gmbh Gebauter Kolben für Verbrennungsmotoren
FI102559B1 (fi) * 1995-03-09 1998-12-31 Waertsilae Nsd Oy Ab Polttomoottorin mäntäyksikkö
FR2735148B1 (fr) 1995-06-08 1997-07-11 Lorraine Laminage Tole d'acier laminee a chaud a haute resistance et haute emboutissabilite renfermant du niobium, et ses procedes de fabrication.
DE19721013A1 (de) * 1997-05-20 1998-12-03 Mahle Gmbh Schraubenanordnung bei gebauten Kolben

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007021101A1 (de) 2007-05-03 2008-11-06 Mahle International Gmbh Legierter Stahl und dessen Verwendung

Also Published As

Publication number Publication date
KR20020004961A (ko) 2002-01-16
BR0008833A (pt) 2001-12-18
DE20007415U1 (de) 2000-09-28
WO2000053913A1 (de) 2000-09-14
DE10080565D2 (de) 2002-03-07
US6622613B1 (en) 2003-09-23
DE19910582A1 (de) 2000-09-28
JP2002539356A (ja) 2002-11-19
DE50002358D1 (de) 2003-07-03
KR100573465B1 (ko) 2006-04-24
EP1161624A1 (de) 2001-12-12
BR0008833B1 (pt) 2009-01-13

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