EP1930578A3 - Cooling duct variant for pistons - Google Patents

Cooling duct variant for pistons Download PDF

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Publication number
EP1930578A3
EP1930578A3 EP07022821A EP07022821A EP1930578A3 EP 1930578 A3 EP1930578 A3 EP 1930578A3 EP 07022821 A EP07022821 A EP 07022821A EP 07022821 A EP07022821 A EP 07022821A EP 1930578 A3 EP1930578 A3 EP 1930578A3
Authority
EP
European Patent Office
Prior art keywords
piston
coolant
pistons
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
EP07022821A
Other languages
German (de)
French (fr)
Other versions
EP1930578B1 (en
EP1930578A2 (en
Inventor
Hartmut Kamp
Emmerich Ottliczky
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39205482&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1930578(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by KS Kolbenschmidt GmbH filed Critical KS Kolbenschmidt GmbH
Publication of EP1930578A2 publication Critical patent/EP1930578A2/en
Publication of EP1930578A3 publication Critical patent/EP1930578A3/en
Application granted granted Critical
Publication of EP1930578B1 publication Critical patent/EP1930578B1/en
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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 
    • 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
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/06—Arrangements for cooling pistons
    • F01P3/08—Cooling of piston exterior only, e.g. by jets

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)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

Die Erfindung betrifft einen flüssigkeitsgekühlten Kolben (1) einer Brennkraftmaschine, in dem ein radial umlaufender, zu einem Kolbenboden (2) beabstandeter Kühlkanal (6a) integriert ist. Über Einspritzdüsen (11, 12) wird ein Kühlmittel, ein Schmieröl der Brennkraftmaschine, in einem freien Strahl in Eintrittsöffnungen (13, 14) eingespritzt, das Abschnitte (15, 16) des geteilt gestalteten Kühlkanals (6a) im Gleichstrom durchströmt und den Kolben (1) durch getrennte Austrittsöffnungen (17, 18) verlässt. Eine weitere schräg zu einer Längsachse (21) des Kolbens (1) geneigt angeordnete Einspritzdüse (19) beaufschlagt eine Unterseite (20) des Kolbens (1) mit Kühlmittel.

Figure imgaf001
The invention relates to a liquid-cooled piston (1) of an internal combustion engine, in which a radially encircling, to a piston head (2) spaced cooling channel (6a) is integrated. Via injection nozzles (11, 12), a coolant, a lubricating oil of the internal combustion engine, is injected in a free jet into inlet openings (13, 14), which flows through portions (15, 16) of the divided cooling channel (6a) in direct current and the piston ( 1) through separate outlet openings (17, 18) leaves. Another injection nozzle (19) arranged at an angle to a longitudinal axis (21) of the piston (1) urges a lower side (20) of the piston (1) with coolant.
Figure imgaf001
EP07022821.8A 2006-11-28 2007-11-24 Cooling duct variant for pistons Revoked EP1930578B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006056011A DE102006056011A1 (en) 2006-11-28 2006-11-28 Liquid-cooled piston for e.g. diesel internal-combustion engine, has medium in free jet of nozzles entering into openings, where jet is directed parallel to longitudinal axis of piston, and lower side loaded with medium by jet

Publications (3)

Publication Number Publication Date
EP1930578A2 EP1930578A2 (en) 2008-06-11
EP1930578A3 true EP1930578A3 (en) 2012-02-08
EP1930578B1 EP1930578B1 (en) 2019-09-25

Family

ID=39205482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07022821.8A Revoked EP1930578B1 (en) 2006-11-28 2007-11-24 Cooling duct variant for pistons

Country Status (2)

Country Link
EP (1) EP1930578B1 (en)
DE (1) DE102006056011A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006056011A1 (en) 2006-11-28 2008-05-29 Ks Kolbenschmidt Gmbh Liquid-cooled piston for e.g. diesel internal-combustion engine, has medium in free jet of nozzles entering into openings, where jet is directed parallel to longitudinal axis of piston, and lower side loaded with medium by jet
DE102008038324A1 (en) * 2008-08-19 2010-02-25 Mahle International Gmbh Cooling channel of a piston for an internal combustion engine
DE102010055029A1 (en) 2009-12-18 2012-05-10 Ks Kolbenschmidt Gmbh Cooling passage piston for internal combustion engine, has cooling passage comprising incidence surface that is vertically aligned to beam through inlet opening in cooling passage during movement of piston
DE102012203570A1 (en) * 2012-03-07 2013-09-12 Mahle International Gmbh Cast light metal piston, especially an aluminum piston
DE102012017217A1 (en) 2012-08-31 2014-05-15 Mahle International Gmbh Piston for an internal combustion engine
CN103184918A (en) * 2012-12-29 2013-07-03 中国兵器工业集团第七0研究所 Piston cooling device for opposed piston two-stroke internal combustion engine
DE102013013962A1 (en) 2013-08-23 2015-02-26 Mahle International Gmbh Assembly of a piston and a Anspritzdüse for an internal combustion engine
DE102014005364A1 (en) 2014-04-11 2015-10-29 Mahle International Gmbh Assembly of a piston and an oil spray nozzle for an internal combustion engine
DE102017206152A1 (en) * 2017-04-11 2018-10-11 Bayerische Motoren Werke Aktiengesellschaft Reciprocating internal combustion engine
AT522701B1 (en) * 2019-06-28 2021-06-15 Avl List Gmbh PISTON
DE102020007484A1 (en) 2020-12-08 2022-06-09 Mercedes-Benz Group AG Pistons for an internal combustion engine
DE102021002870A1 (en) 2021-06-02 2022-12-08 Mercedes-Benz Group AG Pistons for an internal combustion engine, in particular a motor vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831566A1 (en) * 1977-07-18 1979-02-01 Caterpillar Tractor Co ENGINE
US5595145A (en) * 1995-05-31 1997-01-21 Kabushiki Kaisha Komatsu Seisakusho Cooling structure of diesel engine piston
JP2000274306A (en) * 1999-03-23 2000-10-03 Mazda Motor Corp Piston structure of engine
EP1394376A1 (en) * 2002-09-02 2004-03-03 Bontaz Centre Spray nozzle with multiple jets for cooling an internal combustion engine and engine with such nozzle
WO2004104391A1 (en) * 2003-05-24 2004-12-02 Daimlerchrysler Ag Multi-cylinder combustion engine

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967568C (en) 1951-01-27 1957-11-21 Mak Maschb Kiel Ag Method for lubricating the piston pin and cooling the piston crown of piston engines by means of oil and equipment for practicing the method
DE1055879B (en) 1955-03-23 1959-04-23 Schmidt Gmbh Karl Oil-cooled pistons for diesel engines in vehicles
GB1055737A (en) 1964-03-25 1967-01-18 Wellworthy Ltd Improvements in casting processes
JPS57502220A (en) 1981-01-23 1982-12-16
DE3444661A1 (en) 1984-12-07 1986-06-12 Klöckner-Humboldt-Deutz AG, 5000 Köln Liquid-cooled piston
DE3732927A1 (en) 1987-09-30 1989-04-13 Mahle Gmbh Coolable trunk piston for internal combustion engines
DE4331649A1 (en) 1993-09-17 1995-03-23 Kloeckner Humboldt Deutz Ag Piston cooling of an internal combustion engine
DE4340891A1 (en) 1993-12-01 1995-06-08 Mahle Gmbh Reciprocating pistons for internal combustion engines made in particular of light metal
DE19621894B4 (en) * 1995-06-08 2004-07-15 Deutz Ag Internal combustion engine with piston cooling
DE19634742A1 (en) 1996-08-28 1998-03-05 Deutz Ag Internal combustion engine with piston lubricating and cooling oil injector
DE19930630C1 (en) * 1999-07-02 2000-10-26 Federal Mogul Nuernberg Gmbh Liquid-cooled piston for I.C. engines has an annular cooling channel that runs in an undulating fashion in the direction of the piston axis
DE19935399A1 (en) * 1999-07-30 2001-02-01 Ks Kolbenschmidt Gmbh Pistons for an internal combustion engine
US6250275B1 (en) 1999-08-16 2001-06-26 Caterpillar Inc. Internal combustion engine piston pin lubrication
US6557514B1 (en) 2001-10-23 2003-05-06 Federal-Mogul World Wide, Inc. Closed gallery monobloc piston having oil drainage groove
JP2003301744A (en) * 2002-04-08 2003-10-24 Toyota Motor Corp Piston cooling device and method
DE102004043720A1 (en) 2004-09-09 2006-03-30 Federal-Mogul Nürnberg GmbH Piston for an internal combustion engine and internal combustion engine
DE102004056769A1 (en) 2004-11-24 2006-06-01 Federal-Mogul Nürnberg GmbH Piston for an internal combustion engine and combination of a piston with an oil injection assembly
JP2006207537A (en) * 2005-01-31 2006-08-10 Toyota Motor Corp Top face rotating type piston
DE102005061059A1 (en) 2005-12-21 2007-06-28 Mahle International Gmbh Piston for internal combustion engine has piston head side regions of gudgeon-pin hub reinforced radially inward, and oil outflow borings directed to these regions
DE102006056011A1 (en) 2006-11-28 2008-05-29 Ks Kolbenschmidt Gmbh Liquid-cooled piston for e.g. diesel internal-combustion engine, has medium in free jet of nozzles entering into openings, where jet is directed parallel to longitudinal axis of piston, and lower side loaded with medium by jet

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831566A1 (en) * 1977-07-18 1979-02-01 Caterpillar Tractor Co ENGINE
US5595145A (en) * 1995-05-31 1997-01-21 Kabushiki Kaisha Komatsu Seisakusho Cooling structure of diesel engine piston
JP2000274306A (en) * 1999-03-23 2000-10-03 Mazda Motor Corp Piston structure of engine
EP1394376A1 (en) * 2002-09-02 2004-03-03 Bontaz Centre Spray nozzle with multiple jets for cooling an internal combustion engine and engine with such nozzle
WO2004104391A1 (en) * 2003-05-24 2004-12-02 Daimlerchrysler Ag Multi-cylinder combustion engine

Also Published As

Publication number Publication date
EP1930578B1 (en) 2019-09-25
EP1930578A2 (en) 2008-06-11
DE102006056011A1 (en) 2008-05-29

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