EP1063409A2 - Piston pour un moteur à combustion interne - Google Patents

Piston pour un moteur à combustion interne Download PDF

Info

Publication number: EP1063409A2
Authority: EP; European Patent Office
Prior art keywords: inlet; piston; openings; cooling; channel
Prior art date: 1999-06-24
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

EP00111733A

Other languages

German (de)

English (en)

Other versions

EP1063409A3 (fr

EP1063409B1 (fr

Inventor

Wolfgang Hanke

Gregor Müller

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.)

1999-06-24

Filing date

2000-06-02

Publication date

2000-12-27

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7912487&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1063409(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2000-06-02 Application filed by KS Kolbenschmidt GmbH filed Critical KS Kolbenschmidt GmbH

2000-12-27 Publication of EP1063409A2 publication Critical patent/EP1063409A2/fr

2001-09-19 Publication of EP1063409A3 publication Critical patent/EP1063409A3/fr

2004-08-11 Application granted granted Critical

2004-08-11 Publication of EP1063409B1 publication Critical patent/EP1063409B1/fr

2020-06-02 Anticipated expiration legal-status Critical

Status Revoked legal-status Critical Current

Links

238000002485 combustion reaction Methods 0.000 title claims description 3
238000001816 cooling Methods 0.000 claims abstract description 36
230000000694 effects Effects 0.000 description 3
238000004519 manufacturing process 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
- F02F3/16—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 piston for an internal combustion engine with an annular arranged cooling channel, which has inlet and outlet openings, cooling oil through a cooling oil nozzle as a free oil jet via an inlet channel into the inlet opening and can thus be fed into the cooling channel and through at least one drain opening can be discharged via a drain channel.
Such a piston is known for example from DE 43 40 891 A1.
the cooling oil is connected to the motor housing by a cooling oil syringe from the crank chamber through the free interior of the piston through as free Oil jet injected into the inlet opening of the cooling channel.
the Cooling oil jet captured as well as possible at all piston stroke positions become.
Such a piston has the disadvantage that in engines with mutually arranged Cooling oil nozzles two piston designs (one design with one after inlet opening on the right and a version with one on the left Inlet opening) must be used. This means a lot of effort.
the outlet opening has an elongated passage cross section the disadvantage that a high leakage oil flow and thus a reduced Cooling effect takes place.
the present invention is based on the object Improve pistons of the type described above so that it is universal is usable and inexpensive to manufacture and has an improved cooling effect having.
cooling channel has at least three openings, in which Cooling channel level seen from the one drain opening opposite two mutually Inlet openings to be used are arranged such that the openings in Relative to a central axis extending through the drain opening arranged symmetrically are.
the piston is universal in engines with reciprocal arranged cooling nozzles can be used.
the piston can both for engines with parallel to the cylinder axis and with splashing inclined to it Cooling nozzles, as well as gasoline and diesel engines are used.
the Opening that cannot be supplied with cooling oil through a cooling nozzle serves as additional drain opening. This results in comparison to, for example slot-shaped drain opening an improved cooling effect.
a piston 1 has a ring-shaped arrangement in its piston head region Cooling channel 2 on.
This cooling channel 2 has two mutually usable inlet openings 3, 5, which are arranged symmetrically to the central axis and a drain opening 4.
These openings 3, 4, 5 are inlet and outlet channels 6, 7, 8, respectively assigned.
the channels 6, 7, 8 are advantageously rotationally symmetrical, the channels 6, 7, 8 at least in one facing away from the cooling channel Section 9 can be conical.
the diameter of the openings 3, 4, 5 can be approx. 1/25 to approx. 1/5 of the piston diameter.
the inlet and outlet channels 6, 7, 8 can be inclined up to approx. 15 ° with respect to the piston axis.
the openings 3, 4, 5 can be sharp-edged, chamfered or rounded his.
a cooling oil nozzle (not shown) is used Cooling oil is injected into the inlet channel 7 and thus into the inlet opening 3. The cooling oil arrives in the cooling channel 2 and can via the drain opening 4 and the associated drain channel 6 and via the opening 5 and the associated channel 8 drain.

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Pistons, Piston Rings, And Cylinders (AREA)
Lubrication Of Internal Combustion Engines (AREA)

EP00111733A 1999-06-24 2000-06-02 Piston pour un moteur à combustion interne Revoked EP1063409B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19929102A DE19929102A1 (de)	1999-06-24	1999-06-24	Kolben für einen Verbrennungsmotor
DE19929102		1999-06-24

Publications (3)

Publication Number	Publication Date
EP1063409A2 true EP1063409A2 (fr)	2000-12-27
EP1063409A3 EP1063409A3 (fr)	2001-09-19
EP1063409B1 EP1063409B1 (fr)	2004-08-11

Family

ID=7912487

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00111733A Revoked EP1063409B1 (fr)	1999-06-24	2000-06-02	Piston pour un moteur à combustion interne

Country Status (3)

Country	Link
EP (1)	EP1063409B1 (fr)
DE (2)	DE19929102A1 (fr)
PL (1)	PL340320A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2006027157A1 (fr)	2004-09-09	2006-03-16	Federal-Mogul Nürnberg GmbH	Piston pour moteur a combustion interne, et moteur a combustion interne
EP1790881A3 (fr) *	2005-11-24	2008-03-05	Dong Yang Piston Co., Ltd.	Piston
WO2010020231A3 (fr) *	2008-08-19	2010-04-15	Mahle International Gmbh	Canal de refroidissement d'un piston pour moteur à combustion interne
CN104948338A (zh) *	2015-06-30	2015-09-30	山东滨州渤海活塞股份有限公司	一种具有两进一出逆向循环冷却油腔的活塞及其制备方法
US10227948B2 (en)	2015-12-18	2019-03-12	Mahle International Gmbh	Piston for an internal combustion engine
USD886155S1 (en)	2015-12-18	2020-06-02	Mahle International Gmbh	Piston for an internal combustion engine
WO2024036547A1 (fr) *	2022-08-18	2024-02-22	Cummins Inc.	Piston en fonte pour moteur à combustion interne

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102016221352A1 (de)	2016-10-28	2018-05-03	Mahle International Gmbh	Verfahren zur Herstellung eines Kolbens

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4340891A1 (de)	1993-12-01	1995-06-08	Mahle Gmbh	Hubkolben für Verbrennungsmotoren aus insbesondere Leichtmetall

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT1118774B (it) *	1979-06-12	1986-03-03	Ass Eng Italia	Perfezionamento relativo aglistantuffi nei motori diesel
DE3444661A1 (de) *	1984-12-07	1986-06-12	Klöckner-Humboldt-Deutz AG, 5000 Köln	Fluessigkeitsgekuehlter kolben
DE19618625C1 (de) *	1996-05-09	1997-10-23	Daimler Benz Ag	Flüssigkeitsgekühlter Kolben für Verbrennungsmotoren

1999
- 1999-06-24 DE DE19929102A patent/DE19929102A1/de not_active Withdrawn
2000
- 2000-05-26 PL PL00340320A patent/PL340320A1/xx not_active Application Discontinuation
- 2000-06-02 DE DE50007347T patent/DE50007347D1/de not_active Revoked
- 2000-06-02 EP EP00111733A patent/EP1063409B1/fr not_active Revoked

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4340891A1 (de)	1993-12-01	1995-06-08	Mahle Gmbh	Hubkolben für Verbrennungsmotoren aus insbesondere Leichtmetall

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2006027157A1 (fr)	2004-09-09	2006-03-16	Federal-Mogul Nürnberg GmbH	Piston pour moteur a combustion interne, et moteur a combustion interne
EP1790881A3 (fr) *	2005-11-24	2008-03-05	Dong Yang Piston Co., Ltd.	Piston
WO2010020231A3 (fr) *	2008-08-19	2010-04-15	Mahle International Gmbh	Canal de refroidissement d'un piston pour moteur à combustion interne
JP2012500354A (ja) *	2008-08-19	2012-01-05	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	内燃機関用のピストンの冷却通路
CN104948338A (zh) *	2015-06-30	2015-09-30	山东滨州渤海活塞股份有限公司	一种具有两进一出逆向循环冷却油腔的活塞及其制备方法
US10227948B2 (en)	2015-12-18	2019-03-12	Mahle International Gmbh	Piston for an internal combustion engine
USD886155S1 (en)	2015-12-18	2020-06-02	Mahle International Gmbh	Piston for an internal combustion engine
WO2024036547A1 (fr) *	2022-08-18	2024-02-22	Cummins Inc.	Piston en fonte pour moteur à combustion interne

Also Published As

Publication number	Publication date
PL340320A1 (en)	2001-01-02
EP1063409A3 (fr)	2001-09-19
DE19929102A1 (de)	2000-12-28
DE50007347D1 (de)	2004-09-16
EP1063409B1 (fr)	2004-08-11

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