EP1561023B1 - Mehrteiligen gekühlten kolben für einen verbrennungsmotor und verfahren zu dessen herstellung - Google Patents

Mehrteiligen gekühlten kolben für einen verbrennungsmotor und verfahren zu dessen herstellung Download PDF

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Publication number
EP1561023B1
EP1561023B1 EP03769203A EP03769203A EP1561023B1 EP 1561023 B1 EP1561023 B1 EP 1561023B1 EP 03769203 A EP03769203 A EP 03769203A EP 03769203 A EP03769203 A EP 03769203A EP 1561023 B1 EP1561023 B1 EP 1561023B1
Authority
EP
European Patent Office
Prior art keywords
piston
cooling channel
supporting ribs
rib
steel
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 - Fee Related
Application number
EP03769203A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1561023A1 (de
Inventor
Gerhard Berr
Henk Ranvenshorst
Armin Ihle
Magnus Horn
Lars Lundin
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
Hirschvogel Umformtechnik GmbH
Volvo Powertrain AB
Original Assignee
Mahle GmbH
Hirschvogel Umformtechnik GmbH
Volvo Powertrain AB
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=30775598&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1561023(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mahle GmbH, Hirschvogel Umformtechnik GmbH, Volvo Powertrain AB filed Critical Mahle GmbH
Publication of EP1561023A1 publication Critical patent/EP1561023A1/de
Application granted granted Critical
Publication of EP1561023B1 publication Critical patent/EP1561023B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02F3/003—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 
    • F02F3/0076—Pistons  the inside of the pistons being provided with ribs or fins
    • 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 multi-piece cooled piston for an internal combustion engine with a steel forged piston upper part comprising a combustion bowl and a ring wall with ring portion, and a piston lower part having a piston skirt, hubs for receiving the piston connecting the piston rod with the piston and the piston shaft connected hub supports, and a method for producing such a piston.
  • a multi-part cooled piston for an internal combustion engine is from the JP 61175255 A known.
  • This piston shows, at the level of the ring portion of the piston, a number of ribs between which a heat-insulating plate for minimizing heat transfer from the combustion bowl to the ring section is arranged.
  • the invention is therefore based on the object to provide a piston concept for a multi-part cooled piston, with which a cost-effective production is ensured and can be counteracted with the effect of a piston deformation due to the effect of high gas pressures and temperatures.
  • a method for producing a multi-part cooled piston in which by forging a blank, the piston upper part is provided with support ribs in the cooling channel, which form radial sections of a circumferential annular rib radially to the piston longitudinal axis.
  • the piston upper part further comprises a combustion bowl and a ring wall with a ring portion. Subsequently, the thus forged blank is pre-machined by machining the connecting surface for joining.
  • hub support and piston skirt forged piston bottom is provided with an annular circumferential, connecting the hub supports support rib and is also pre-machined after joining for joining.
  • the subsequent joining or joining of the annular rib of the upper piston part with the support rib of the piston lower part takes place by means of a welding or soldering process.
  • the thus-joined piston blank is finished to a piston usable in an engine.
  • the support ribs can be manufactured or arranged distributed radially symmetrically and / or asymmetrically, for example by a larger number in the pressure counter-pressure direction of the piston, over the circumference of the cooling duct.
  • the cooling channel can be formed closer to the piston crown or combustion bowl and nevertheless has excellent dimensional stability.
  • the arrangement of the support ribs a kind of chamber formation in the cooling channel, d. H. Generation of shaker chambers, whereby an extension of the residence time of the cooling oil and thus improved heat dissipation of the piston areas to be cooled is achieved.
  • the inventive solution piston upper parts made of heat-resistant steel and piston bottoms, consisting of forged AFP steel, particularly easy and inexpensive to manufacture and connectable.
  • the multi-part cooled piston 20 consists of a forged piston upper part 1 with a combustion bowl 3, ring wall 4 with ring portion 11 and a cooling channel 7 and a piston lower part 2, the piston shaft 9 and hub supports 6, as from Fig. 5 can be seen.
  • support ribs 8 are provided, which are arranged in the region towards the piston head and extending in the direction of the cooling channel 7 in.
  • the height h of the support ribs 8 amounts to a maximum of half the total height H of the cooling channel 7, so that an unhindered cooling oil circuit is ensured.
  • FIGS. 3 and 4 show the support ribs 8 go radially to the piston longitudinal axis K in sections of an annular rib 5, which forms the annular rib 5 in their entirety.
  • the support ribs 8 are, as in Fig. 4 represented, radially symmetrically with an angle ⁇ , relative to the piston main axes K H , arranged distributed by 45 degrees of angle over the circumference of the cooling channel 7.
  • the distribution of the support ribs 8 may be designed such that in pressure-back pressure direction of the piston D and GD, a larger number of support ribs 8 is arranged, as transverse to it, ie, a single-ended circumferential distribution in the cooling channel 7, takes place.
  • annular circumferential support rib 10 is formed, as seen from Fig. 3 can be seen, which corresponds in their geometric dimensions with the annular rib 5.
  • the upper piston part 1 and lower piston part 2 is connected to each other via the support and annular ribs 10 and 5 by means of a welding or soldering process.
  • the upper piston part 1 is advantageously formed of an oxidation-resistant and / or heat-resistant material and the lower piston part 2 of a precipitation-hardening ferritic-pearlitic steel or tempered steel.
  • the method of manufacturing the piston top and piston bottoms 1 and 2 usually begins with the upsetting of a steel bar section, a so-called billet, followed by forming, the pre-engraving, to make the individual elements the respective piston part, such as cooling channel 7, the support ribs 8, combustion bowl 3 etc. or hub support 6 etc., a finished engraving in which material overhangs are removed, a subsequent burring, a subsequent heat treatment for stress relief in the material, a cleaning of the forged piston parts For example, sandblasting and the subsequent processing of the joining surfaces by machining.
  • the piston upper part 1 and piston lower part 2 thus produced is non-releasably connected by means of a welding or soldering process via the joining surfaces of the ring and support ribs 5 and 10, wherein subsequently a finishing of the piston 20 to a piston which can be used in a motor is carried out by means of machining.

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)
EP03769203A 2002-09-25 2003-09-19 Mehrteiligen gekühlten kolben für einen verbrennungsmotor und verfahren zu dessen herstellung Expired - Fee Related EP1561023B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10244513 2002-09-25
DE10244513A DE10244513A1 (de) 2002-09-25 2002-09-25 Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor und Verfahren zu dessen Herstellung
PCT/DE2003/003117 WO2004029441A1 (de) 2002-09-25 2003-09-19 Mehrteiligen gekühlten kolben für einen verbrennungsmotor und verfahren zu dessen herstellung

Publications (2)

Publication Number Publication Date
EP1561023A1 EP1561023A1 (de) 2005-08-10
EP1561023B1 true EP1561023B1 (de) 2011-05-25

Family

ID=30775598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03769203A Expired - Fee Related EP1561023B1 (de) 2002-09-25 2003-09-19 Mehrteiligen gekühlten kolben für einen verbrennungsmotor und verfahren zu dessen herstellung

Country Status (9)

Country Link
US (1) US6691666B1 (ja)
EP (1) EP1561023B1 (ja)
JP (1) JP4411212B2 (ja)
KR (1) KR20050065560A (ja)
CN (1) CN100347432C (ja)
AU (1) AU2003277806A1 (ja)
DE (2) DE10244513A1 (ja)
HK (1) HK1078918A1 (ja)
WO (1) WO2004029441A1 (ja)

Families Citing this family (30)

* 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
JP4026519B2 (ja) 2003-03-12 2007-12-26 ソニー株式会社 記録媒体、記録装置、再生装置、記録方法、再生方法
FR2854089B1 (fr) * 2003-04-23 2006-05-19 Semt Pielstick Procede de fabrication d'un piston, outillage pour la mise en oeuvre de ce procede et piston ainsi obtenu
US7406941B2 (en) * 2004-07-21 2008-08-05 Federal - Mogul World Wide, Inc. One piece cast steel monobloc piston
DE102004057625A1 (de) * 2004-11-30 2006-06-01 Mahle International Gmbh Zweiteiliger Kolben für einen Verbrennungsmotor
DE102005041000B4 (de) * 2005-08-29 2012-07-05 Thyssenkrupp Automotive Ag Verfahren, Fertigungslinie und Kolbenrohling zum Herstellen eines einteilig ausgebildeten Kolbens für Verbrennungsmotoren, sowie Kolben für Verbrennungsmotoren
DE102006030699B4 (de) * 2006-06-30 2014-10-02 Daimler Ag Gegossener Stahlkolben für Verbrennungsmotoren
ES2357618T3 (es) 2006-09-26 2011-04-28 ThyssenKrupp Metalúrgica Campo Limpo Ltda. Procedimiento para la fabricacjón de un pistón para motores de combustión interna y pistón para un motor de combustión interna.
JP5109177B2 (ja) * 2006-11-08 2012-12-26 フェデラル−モーグル コーポレイション ピストンアセンブリ
DE102007029307A1 (de) 2007-06-22 2008-12-24 Daimler Ag Kolben für eine Brennkraftmaschine und Verfahren zu dessen Herstellung
ATE502200T1 (de) * 2007-08-24 2011-04-15 Thyssenkrupp Metalurgica Campo Limpo Ltda Kolben für einen verbrennungsmotor und verfahren zur herstellung eines derartigen kolbens
DE102009048124A1 (de) 2009-10-02 2011-04-07 Daimler Ag Stahlkolben für Verbrennungsmotoren
JP5648062B2 (ja) * 2009-11-10 2015-01-07 フェデラル−モーグル コーポレイション ブローバイ構成を有するピストン、および内燃機関への壊滅的故障を防止する方法
DE102010015568A1 (de) * 2010-04-19 2011-10-20 Ks Kolbenschmidt Gmbh Kolbenoberteil eines gebauten oder geschweißten Kolbens mit erweiterten Kühlräumen
DE102010045221B4 (de) 2010-09-13 2017-10-05 Daimler Ag Stahlkolben für Verbrennungsmotoren
US9856820B2 (en) * 2010-10-05 2018-01-02 Mahle International Gmbh Piston assembly
DE102011013141A1 (de) * 2011-03-04 2012-09-06 Mahle International Gmbh Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor
DE102011077088A1 (de) 2011-06-07 2012-12-13 Mahle International Gmbh Verfahren zur gleichzeitigen Herstellung eines ersten und zweiten Kolbenteils
US8671905B2 (en) * 2011-07-12 2014-03-18 Mahle International Gmbh Piston for an internal combustion engine and method for its production
DE102012216367A1 (de) * 2011-09-28 2013-03-28 Ks Kolbenschmidt Gmbh Zweiteiliger Stahlkolben für Brennkraftmaschinen
US9004037B2 (en) * 2012-02-20 2015-04-14 Federal-Mogul Corporation Piston assembly for internal combustion engine
DE102012009030A1 (de) * 2012-05-05 2013-11-07 Mahle International Gmbh Anordnung aus einem Kolben und einem Kurbelgehäuse für einen Verbrennungsmotor
DE102012008945A1 (de) * 2012-05-05 2013-11-07 Mahle International Gmbh Kolben für einen Verbrennungsmotor
KR101449304B1 (ko) * 2013-06-27 2014-10-08 현대자동차주식회사 자동차 엔진용 피스톤의 제조 방법
DE102014222416A1 (de) 2014-11-03 2016-05-04 Mahle Lnternational Gmbh Kolben für eine Brennkraftmaschine
DE102016225637A1 (de) * 2016-12-20 2018-06-21 Mahle International Gmbh Verfahren zum Herstellen eines einteiligen Kolbens für einen Verbrennungsmotor durch Schmieden
EP3421153A1 (en) 2017-06-26 2019-01-02 ThyssenKrupp Metalúrgica Campo Limpo Ltda. Forging method, rotor shaft and electric motor
DE102017211480A1 (de) * 2017-07-05 2019-01-10 Mahle International Gmbh Verfahren zur Herstellung eines Kolbens
US10591059B2 (en) * 2018-06-05 2020-03-17 Mahle International Gmbh Piston with cooling oil diverter
CN109396774B (zh) * 2018-12-12 2021-12-28 湖南江滨机器（集团）有限责任公司 一种活塞制造方法和活塞生产线

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US2334318A (en) * 1940-01-13 1943-11-16 Donaldson Piston Corp Piston
FR2079873A5 (ja) * 1970-02-16 1971-11-12 Semt
DE2919638A1 (de) * 1979-05-16 1980-11-20 Schmidt Gmbh Karl Kolben fuer brennkraftmaschinen
JPS61175255A (ja) * 1985-01-30 1986-08-06 Mitsubishi Heavy Ind Ltd 内燃機関用断熱ピストン
BR9001859A (pt) * 1990-04-17 1991-11-12 Metal Leve Sa Processo de fabricacao de embolo e embolo
DE4118400A1 (de) * 1990-06-29 1992-01-02 Kolbenschmidt Ag Gebauter, oelgekuehlter kolben fuer dieselmotoren
BR9005371A (pt) * 1990-10-18 1992-06-16 Metal Leve Sa Processo de fabricacao de embolo com galeria de refrigeracao
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
DE19522756A1 (de) * 1995-06-27 1997-01-02 Kolbenschmidt Ag Tauchkolben für Brennkraftmaschinen
US6260472B1 (en) * 1998-07-28 2001-07-17 Federal-Mogul World Wide, Inc. One-piece integral skirt piston and method of making the same
FI106396B (fi) * 1998-11-19 2001-01-31 Wecometal Oy Polttomoottorin mäntä
US6164261A (en) * 1999-02-10 2000-12-26 Caterpillar Inc. Internal combustion engine piston assembly and method
DE19910582A1 (de) * 1999-03-10 2000-09-28 Mahle Gmbh Gebauter Kolben
GB9909034D0 (en) * 1999-04-19 1999-06-16 Seneca Tech Ltd Piston coolant path
DE19926568A1 (de) * 1999-06-11 2000-12-14 Mahle Gmbh Gekühlter Kolben für Verbrennungsmotoren
DE19930630C1 (de) * 1999-07-02 2000-10-26 Federal Mogul Nuernberg Gmbh Flüssigkeitsgekühlter Kolben
DE19935399A1 (de) * 1999-07-30 2001-02-01 Ks Kolbenschmidt Gmbh Kolben für einen Verbrennungsmotor

Also Published As

Publication number Publication date
JP4411212B2 (ja) 2010-02-10
DE10393902D2 (de) 2005-09-01
KR20050065560A (ko) 2005-06-29
EP1561023A1 (de) 2005-08-10
US6691666B1 (en) 2004-02-17
HK1078918A1 (en) 2006-03-24
CN100347432C (zh) 2007-11-07
CN1685140A (zh) 2005-10-19
WO2004029441A1 (de) 2004-04-08
JP2006500507A (ja) 2006-01-05
AU2003277806A8 (en) 2004-04-19
AU2003277806A1 (en) 2004-04-19
DE10244513A1 (de) 2004-04-08

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