EP1185774B1 - Piston refroidi pour moteurs a combustion interne - Google Patents

Piston refroidi pour moteurs a combustion interne Download PDF

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Publication number
EP1185774B1
EP1185774B1 EP00936631A EP00936631A EP1185774B1 EP 1185774 B1 EP1185774 B1 EP 1185774B1 EP 00936631 A EP00936631 A EP 00936631A EP 00936631 A EP00936631 A EP 00936631A EP 1185774 B1 EP1185774 B1 EP 1185774B1
Authority
EP
European Patent Office
Prior art keywords
piston
wall element
cooled
cooled piston
transverse walls
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.)
Expired - Lifetime
Application number
EP00936631A
Other languages
German (de)
English (en)
Other versions
EP1185774A1 (fr
Inventor
Wolfgang Issler
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 EP1185774A1 publication Critical patent/EP1185774A1/fr
Application granted granted Critical
Publication of EP1185774B1 publication Critical patent/EP1185774B1/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 cooled piston for internal combustion engines with the features according to the preamble of the claim 1.
  • Such pistons are from DD 252 638 A1 and DE 41 34 530 A1 known, in which to cover the downwardly open circular cooling channel serving Wall part is designed as an open sheet metal ring, the taking advantage of its elastic deformation after the Seeger ring principle, i.e. under preload in radial Direction, in a groove on the inner circumference of the piston ring zone or lies on the outer circumference of the combustion chamber wall.
  • a piston head part is known from DE 42 08 037 C2, at which the cooling channel open at the bottom by a on its circumference at least two-part radially fixed tensioned disc spring, the radially inside and outside on axially opposite Sides freely on supports, is covered.
  • a piston with a cooling channel is in the Piston head known in which one the lower open end of the Baffle plate covering the cooling channel is provided, the ends of which bent vertically upwards in the area of the division to maintain a certain level of cooling oil in the cooling channel.
  • the invention is therefore based on the object, the dwell time to extend the cooling oil in the cooling duct and the Shaker effect of the cooling oil to enhance a better one To achieve heat dissipation of the piston areas to be cooled.
  • a cooled piston consists of a piston head 1 and a with this via a piston pin (not shown) hinged piston skirt (not shown).
  • an annular cooling channel 2 provided that at its end open to the piston skirt through a wall part 3, e.g. a two-part disc spring or two sheet metal strip halves 4, 5 is closed.
  • a wall part 3 e.g. a two-part disc spring or two sheet metal strip halves 4, 5 is closed.
  • the wall part 3 is supported in the piston head 1 per se known type, e.g.
  • the wall part 3 is by radial divisions 9, 10th divided into two sheet metal strip halves 4, 5, which are prestressed form the lower end of the cooling channel 2.
  • For feeding of cooling oil are in the first half of the metal strip 4 from the Wall part 3 two sections 11 bent obliquely upwards, 12, released so that the cooling oil jet divided and each about half in the opposite direction in the Cooling duct 2 enters.
  • the oil flow then runs around in the cooling channel and is provided by one in the second metal strip half 5 Discharge opening 13 derived again.
  • the production of the transverse walls 6 of the wall part 3 can be done easily done by reshaping.
  • this connection can, for example, of an annular, punched flat wall part 3 or a straight flat wall part 3 be, with the straight exit strip the Folding 14 has to be done so that subsequently an annular Wall part 3 is present.
  • Another version is to enlarge the shaker room in the flat area 15 of the wall part 3 Forming a recess 16 formed in the direction of the piston skirt.

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)
  • Compressor (AREA)

Claims (6)

  1. Piston refroidi pour moteurs à combustion interne, comprenant un canal de refroidissement (2) périphérique annulaire dans la tête de piston (1), lequel canal est fermé, sur son extrémité ouverte en direction de la tige de piston, par une partie de paroi (3) formée en conséquence, fixée sur le piston et partagée au moins une fois dans la direction radiale, caractérisé en ce que la partie de paroi (3) est munie en répartition sur son pourtour de plusieurs parois transversales (6) disposées à peu près dans la direction radiale et s'étendant axialement dans le canal de refroidissement (2).
  2. Piston refroidi suivant la revendication 1, caractérisé en ce que les parois transversales (6) ont une réalisation monobloc avec la partie de paroi (3).
  3. Piston refroidi suivant l'une des revendications 1 et 2, caractérisé en ce que les parois transversales (6) sont fabriquées par formage d'une partie de paroi (3) plane à l'état initial.
  4. Piston refroidi suivant l'une des revendications précédentes, caractérisé en ce que, pour l'arrivée et éventuellement l'évacuation de l'huile de refroidissement, la partie de paroi (3) est munie de pièces partielles (11, 12) entaillées de la partie de paroi (3), pliées en oblique vers le haut.
  5. Piston refroidi suivant la revendication 4, caractérisé en ce que la pièce partielle pliée (12, 11) s'étend à peu près en S.
  6. Piston refroidi suivant l'une des revendications précédentes, caractérisé en ce qu'un creux (16) est conformé par formage dans la direction de la tige de piston dans la zone plane (15) entre deux parois transversales (6).
EP00936631A 1999-06-11 2000-04-14 Piston refroidi pour moteurs a combustion interne Expired - Lifetime EP1185774B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19926568 1999-06-11
DE19926568A DE19926568A1 (de) 1999-06-11 1999-06-11 Gekühlter Kolben für Verbrennungsmotoren
PCT/DE2000/001169 WO2000077379A1 (fr) 1999-06-11 2000-04-14 Piston refroidi pour moteurs a combustion interne

Publications (2)

Publication Number Publication Date
EP1185774A1 EP1185774A1 (fr) 2002-03-13
EP1185774B1 true EP1185774B1 (fr) 2004-10-13

Family

ID=7910860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00936631A Expired - Lifetime EP1185774B1 (fr) 1999-06-11 2000-04-14 Piston refroidi pour moteurs a combustion interne

Country Status (6)

Country Link
US (1) US6659062B1 (fr)
EP (1) EP1185774B1 (fr)
JP (1) JP2003502558A (fr)
BR (1) BR0011495A (fr)
DE (2) DE19926568A1 (fr)
WO (1) WO2000077379A1 (fr)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10221561A1 (de) 2002-05-15 2004-01-08 Mahle Gmbh Gekühlter Kolben für einen Verbrennungsmotor
DE10244510A1 (de) * 2002-09-25 2004-04-08 Mahle Gmbh Einteiliger Kühlkanalkolben für einen Verbrennungsmotor
DE10244511A1 (de) * 2002-09-25 2004-04-15 Mahle Gmbh Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor
DE10244512A1 (de) 2002-09-25 2004-04-15 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
DE10325917A1 (de) * 2003-06-07 2005-03-31 Mahle Gmbh Kolben für einen Verbrennungsmotor und Gießverfahren zu dessen Herstellung
DE10326456A1 (de) * 2003-06-12 2004-12-30 Mahle Gmbh Kolben für einen Verbrennungsmotor
US6892690B2 (en) * 2003-10-06 2005-05-17 Mahle Gmbh Cooling channel cover for a one-piece piston of an internal combustion engine
US6820582B1 (en) * 2003-10-06 2004-11-23 Mahle Gmbh Cooling channel cover for a one-piece piston of an internal combustion engine
US6938604B2 (en) * 2003-10-06 2005-09-06 Mahle Gmbh Cooling channel cover for a one-piece piston of an internal combustion engine
DE10346822A1 (de) * 2003-10-06 2005-04-21 Mahle Gmbh Kolben für einen Verbrennungsmotor
US6920860B2 (en) * 2003-10-06 2005-07-26 Mahle Gmbh Cooling channel cover for a one-piece piston of an internal combustion engine
DE102004019011A1 (de) * 2004-04-20 2005-11-17 Mahle Gmbh Kühlkanalabdeckung für einen Kolben eines Verbrennungsmotors
DE102004019010A1 (de) * 2004-04-20 2005-11-17 Mahle Gmbh Kühlkanalabdeckung für einen Kolben eines Verbrennungsmotors
DE102004056870A1 (de) * 2004-11-25 2006-06-01 Mahle International Gmbh Kolben mit einem Kühlkanal für einen Verbrennungsmotor und Verfahren zur Herstellung des Kolbens
DE102004056871A1 (de) * 2004-11-25 2006-06-01 Mahle International Gmbh Kolben für einen Verbrennungsmotor mit einem Kühlkanal und Verfahren zum Anbringen von Vorsprüngen an der Innenwand des Kühlkanals
DE102004057624A1 (de) * 2004-11-30 2006-06-01 Mahle International Gmbh Mehrteiliger, gekühlter Kolben für einen Verbrennungsmotor
DE102006013884A1 (de) 2006-03-25 2007-09-27 Mahle International Gmbh Kolben für einen Verbrennungsmotor
US7299772B1 (en) * 2006-06-22 2007-11-27 Caterpillar Inc. Cooling gallery fan assembly for a piston
US7762227B2 (en) * 2008-02-19 2010-07-27 Federal Mogul Corporation Coolable piston for internal combustion engine
US8347842B2 (en) 2008-02-19 2013-01-08 Federal-Mogul Corporation Coolable piston for internal combustion engine
DE102008055848A1 (de) * 2008-11-04 2010-05-06 Ks Kolbenschmidt Gmbh Kühlkanalkolben einer Brennkraftmaschine mit einem Verschlusselement, das den Kühlkanal verschließt
DE102010056220A1 (de) * 2010-12-24 2012-06-28 Mahle International Gmbh Kolben für einen Verbrennungsmotor
DE102011076369A1 (de) * 2011-05-24 2012-11-29 Mahle International Gmbh Untere Abdeckung eines Kühlkanals eines Kolbens
DE102012213558A1 (de) * 2012-08-01 2014-02-06 Mahle International Gmbh Kolben
US20150260124A1 (en) * 2012-10-08 2015-09-17 Componenta Finland Oy Piston for an internal combustion engine
US9404439B2 (en) 2012-10-12 2016-08-02 Mahle International Gmbh Piston with cooling gallery and cooling gallery fins
US9228480B2 (en) 2014-06-06 2016-01-05 Mahle Industries, Incorporated Piston crown cooling gallery insert
DE102014015947A1 (de) * 2014-10-30 2016-05-19 Mahle International Gmbh Kühlkanalabdeckung sowie mit einer Kühlkanalabdeckung versehener Kolben
DE102015215803A1 (de) * 2015-08-19 2017-02-23 Federal-Mogul Nürnberg GmbH Verfahren zur Herstellung zumindest eines Teils eines Stahl- oder Aluminiumkolbens für einen Verbrennungsmotor sowie Stahl- oder Aluminiumkolben für einen Verbrennungsmotor
US10247133B2 (en) 2016-01-25 2019-04-02 Tenneco Inc. Piston with cooling gallery radiator and method of construction thereof
DE102016225632A1 (de) * 2016-12-20 2018-06-21 Mahle International Gmbh Kolben einer Brennkraftmaschine
US10774781B2 (en) * 2017-01-25 2020-09-15 Tenneco, Inc. Piston with anti-coking design features
DE102017205716A1 (de) * 2017-04-04 2018-10-04 Mahle International Gmbh Kolben einer Brennkraftmaschine
CN110469421A (zh) * 2018-05-11 2019-11-19 强莉莉 一种组合式活塞
US10591059B2 (en) * 2018-06-05 2020-03-17 Mahle International Gmbh Piston with cooling oil diverter
DE102019217732A1 (de) * 2019-11-18 2021-05-20 Mahle International Gmbh Kolben für eine Brennkraftmaschine sowie Brennkraftmaschine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE252638C (fr)
DD252638A1 (de) * 1986-09-17 1987-12-23 Ifa Motorenwerke Spritzoelgekuehlter eisenkolben fuer hubkolbenbrennkraftmaschinen
DE3991677T1 (de) * 1989-05-25 1991-06-06 Caterpillar Inc Gelenkiger kolben mit einer ein bestimmtes volumen aufweisenden kuehlausnehmung
US4986167A (en) 1989-05-25 1991-01-22 Caterpillar Inc. Articulated piston with a cooling recess having a preestablished volume therein
BR9005376A (pt) * 1990-10-18 1992-06-16 Metal Leve Sa Embolo bipartido com fechamento postico de galeria e processo para sua obtencao
DE4039754A1 (de) * 1990-12-13 1992-06-17 Mahle Gmbh Mehrteiliger, gekuehlter kolben fuer verbrennungsmotoren
WO1992010659A1 (fr) * 1990-12-13 1992-06-25 Mahle Gmbh Piston compose refroidi pour moteurs a combustion interne
DE4039751A1 (de) * 1990-12-13 1992-06-17 Mahle Gmbh Mehrteililger, gekuehlter kolben fuer verbrennungsmotoren
DE4208037C2 (de) * 1992-03-13 1998-03-26 Mahle Gmbh Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren
DE4430137B4 (de) * 1994-08-25 2004-07-22 Mahle Gmbh Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren
DE19501416A1 (de) * 1995-01-19 1996-07-25 Kolbenschmidt Ag Geschmiedeter oder gegossener Kolbenkopf eines mehrteiligen Kolbens
DE19720958B4 (de) 1997-05-17 2007-07-26 Mahle Gmbh Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren
DE19747944A1 (de) * 1997-10-30 1999-05-06 Mahle Gmbh Kolben mit zentralem Kühlraum
DE19846496A1 (de) * 1998-10-09 2000-04-13 Mahle Gmbh Kolben für einen Verbrennungsmotor

Also Published As

Publication number Publication date
JP2003502558A (ja) 2003-01-21
DE19926568A1 (de) 2000-12-14
DE50008239D1 (de) 2004-11-18
EP1185774A1 (fr) 2002-03-13
BR0011495A (pt) 2002-03-05
WO2000077379A1 (fr) 2000-12-21
US6659062B1 (en) 2003-12-09

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