WO2007073719A1 - Kolben für einen verbrennungsmotor und verfahren zu dessen herstellung - Google Patents
Kolben für einen verbrennungsmotor und verfahren zu dessen herstellung Download PDFInfo
- Publication number
- WO2007073719A1 WO2007073719A1 PCT/DE2006/002255 DE2006002255W WO2007073719A1 WO 2007073719 A1 WO2007073719 A1 WO 2007073719A1 DE 2006002255 W DE2006002255 W DE 2006002255W WO 2007073719 A1 WO2007073719 A1 WO 2007073719A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- cooling channel
- cooling
- salt core
- projections
- Prior art date
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/105—Salt cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
- B22D15/02—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor of cylinders, pistons, bearing shells or like thin-walled objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
- B22D19/0027—Cylinders, pistons pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/002—Castings of light metals
- B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/001—Removing cores
- B22D29/002—Removing cores by leaching, washing or dissolving
-
- 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
- F02F2200/06—Casting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49249—Piston making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49249—Piston making
- Y10T29/49252—Multi-element piston making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49274—Piston ring or piston packing making
Definitions
- the invention relates to a piston for an internal combustion engine according to the preamble of claim 1 and a method for its production according to claim 6.
- US Pat. No. 4,662,319 discloses a built-up piston for an internal combustion engine which comprises a piston main body with pin bosses and a piston upper part connected thereto.
- the piston base body On the piston bottom side, the piston base body has an annular bearing surface on which the piston upper part rests, and which is connected to the pin bosses via conically shaped wall elements.
- the wall elements form an annular space approaching the pin bosses, which is covered on the piston bottom side by a ring element which has openings through which cooling oil is introduced into the annular space with which the pin bosses are cooled.
- the ring member further includes a radially outwardly formed in the underside of the piston upper part recess, so that there is a closed, annular cooling channel for cooling the annular grooves.
- the disadvantage here is the complicated structure of the known from the US patent piston, whereby the production of the piston is complicated and expensive.
- Show it 1 shows a section through a piston shown in perspective with a circumferential cooling channel, each having a Nabenk ⁇ hl- channel in the region of the pin bosses,
- FIG. 2 shows a section through the piston shown in perspective with a cooling channel according to FIG. 2, which has a plurality of hump-shaped and piston-bottom-side arranged cross-sectional widenings, FIG.
- FIG 3 shows a section through the piston, which is shown in perspective, with a hub cooling channel, which is connected to the cooling channel only via an oil inlet opening, and
- Fig. 4 shows a section through the piston shown in perspective with a cooling channel having in the region of the pin bosses depending on a radially inwardly directed, surface-shaped Nabenkühlkanal.
- Fig. 1 shows a perspective view of a piston 1 for an internal combustion engine in section with a combustion bowl 2 in the piston head 3.
- the radial outer surface of the piston 1 has an adjacent to the piston crown 3 land land 4 and adjacent to a ring section 5, followed by a rotating shaft 6 connects.
- On opposite sides of the shaft 6 are each a pin hub 7, each with a hub bore 8 is held.
- the piston 1 in the piston crown radially outside an annular, circumferential cooling channel 9, is introduced into the cooling oil via an opening into the piston interior 14 oil supply passage 10, and from the cooling oil via a in the Figures not shown, discharged into the piston interior 14 ⁇ lab Concretekanal is discharged again.
- the cooling channel 9 is connected to one in the areas T of the two pin bosses 7 arranged Nabenkühlkanal 13, wherein the two Nabenkühlkanäle 13 via one oil inlet opening 11 and one each Oil drain opening 12 are connected to the cooling channel 9.
- the two Nabenkühlkanäle 13 also each have an opening into the piston interior 14 oil drain channel 15.
- a salt core is initially formed, which has the shape of the cooling channel 9 with the hub cooling channels 13 formed thereon, each with an oil drain channel 15.
- the salt core is then placed in a mold and encapsulated with the piston material, i.e., with aluminum or with cast iron.
- the oil supply channel 10 and the ⁇ lab Industrieskanal is drilled into the piston 1, through which the salt of the salt core is washed out of the piston blank.
- the piston is completed by means of a machining process.
- FIG. 2 an embodiment of a cooling channel 9 1 is shown, distributed over the entire circumference, piston bottom side arranged humpy cross-sectional extensions 16 whose purpose is to improve the cooling of the thermally highly loaded edge of the combustion bowl 2 in that the cooling channel 9 'in the areas of the cross-sectional widenings 16 comes closer to the edge of the combustion chamber trough 2, so that the cooling oil can get closer to the trough edge.
- Fig. 3 an embodiment of the Nabenkühlkanals 13 'is shown, which is connected exclusively via the oil drain passage 15 with the piston interior 14, so that the entire through the Nabenkühlkanal 13' flowing oil is fed into the piston interior 14.
- the design of the cooling channel 9 "according to FIG. 4 has in each case a radially inwardly directed, in plan view flat surface-shaped hub cooling channel 17 in the piston bottom side regions T of the pin bosses 7, from which cooling oil is conducted via the oil drain channel 15 into the piston interior 14 area-wide - A -
- Th Nabenkühlkanals 17 is a relatively large area of the pin bosses 7 covered with cooling surface, which comes into contact with cooling oil, so that in this way a very good cooling of the areas T of the pin bosses 7 is achieved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800473511A CN101331309B (zh) | 2005-12-21 | 2006-12-15 | 内燃机活塞制造方法 |
EP06828686A EP1963655A1 (de) | 2005-12-21 | 2006-12-15 | Kolben für einen verbrennungsmotor und verfahren zu dessen herstellung |
JP2008546114A JP2009520901A (ja) | 2005-12-21 | 2006-12-15 | 内燃機関のためのピストンおよびこれを製造する方法 |
BRPI0620283-7A BRPI0620283A2 (pt) | 2005-12-21 | 2006-12-15 | pistão para um motor de combustão interna e processo para sua produção |
US12/086,841 US7921555B2 (en) | 2005-12-21 | 2006-12-15 | Piston for an internal combustion engine and method for its production |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005061075.7 | 2005-12-21 | ||
DE102005061075A DE102005061075A1 (de) | 2005-12-21 | 2005-12-21 | Kolben für einen Verbrennungsmotor und Verfahren zu dessen Herstellung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007073719A1 true WO2007073719A1 (de) | 2007-07-05 |
Family
ID=37890265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2006/002255 WO2007073719A1 (de) | 2005-12-21 | 2006-12-15 | Kolben für einen verbrennungsmotor und verfahren zu dessen herstellung |
Country Status (8)
Country | Link |
---|---|
US (1) | US7921555B2 (de) |
EP (1) | EP1963655A1 (de) |
JP (1) | JP2009520901A (de) |
KR (1) | KR20080080546A (de) |
CN (1) | CN101331309B (de) |
BR (1) | BRPI0620283A2 (de) |
DE (1) | DE102005061075A1 (de) |
WO (1) | WO2007073719A1 (de) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007044105A1 (de) * | 2007-04-27 | 2008-10-30 | Mahle International Gmbh | Gießkern zur Bildung eines Kühlkanals in einem gießtechnisch hergestellten Kolben |
DE102008020231A1 (de) * | 2008-04-22 | 2009-10-29 | Mahle International Gmbh | Gießkern zur Bildung eines Kühlkanals |
DE102008002571A1 (de) * | 2008-06-20 | 2009-12-31 | Federal-Mogul Nürnberg GmbH | Kolben für einen Verbrennungsmotor |
DE102008031863A1 (de) * | 2008-07-05 | 2010-01-07 | Mahle International Gmbh | Einlegeteil für einen Kolben eines Verbrennungsmotors sowie mit dem Einlegeteil versehener Kolben oder Kolbenkopf |
KR101417117B1 (ko) | 2008-10-22 | 2014-08-07 | 두산인프라코어 주식회사 | 피스톤 냉각 장치 |
DE102009027148B4 (de) * | 2009-06-24 | 2015-02-12 | Federal-Mogul Nürnberg GmbH | Kolben für einen Verbrennungsmotor mit Kühlkanalsystem |
US8210234B2 (en) * | 2010-02-19 | 2012-07-03 | GM Global Technology Operations LLC | Combustion chamber wall cooling chamber design for semi-permanent mold cylinder head casting |
DE102010015568A1 (de) * | 2010-04-19 | 2011-10-20 | Ks Kolbenschmidt Gmbh | Kolbenoberteil eines gebauten oder geschweißten Kolbens mit erweiterten Kühlräumen |
CN102218641A (zh) * | 2010-04-19 | 2011-10-19 | 昆山广兴电子有限公司 | 金属扇框的制造方法 |
DE102011114105A1 (de) * | 2010-12-18 | 2012-06-21 | Mahle International Gmbh | Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung |
CN102151794B (zh) * | 2011-02-23 | 2013-10-23 | 江苏大学 | 一种活塞重力铸造方法及装置 |
WO2012142433A1 (en) * | 2011-04-15 | 2012-10-18 | Federal-Mogul Corporation | Piston and method of making a piston |
US8863647B2 (en) * | 2011-05-04 | 2014-10-21 | GM Global Technology Operations LLC | Oil gallery piston with improved thermal conductivity |
DE102011106655A1 (de) * | 2011-07-05 | 2013-01-10 | Mahle International Gmbh | Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor |
CN102407289B (zh) * | 2011-11-23 | 2013-10-09 | 广州南鸥卫浴用品有限公司 | 一种弯曲锌合金铸件重力铸造浇口结构 |
CN103423015A (zh) * | 2012-05-15 | 2013-12-04 | 安徽华菱汽车有限公司 | 一种内燃机及其活塞 |
CN102728789A (zh) * | 2012-07-24 | 2012-10-17 | 湖南江滨机器(集团)有限责任公司 | 活塞模具的烫模方法及预热方法 |
JP2014185522A (ja) * | 2013-03-21 | 2014-10-02 | Hitachi Automotive Systems Ltd | 内燃機関のピストン |
JP6050709B2 (ja) * | 2013-03-22 | 2016-12-21 | 日立オートモティブシステムズ株式会社 | 内燃機関用ピストン |
GB2523698B (en) * | 2013-12-10 | 2020-06-03 | Steyr Motors Betr Gmbh | Engine block of a diesel engine with integrally cast cylinder head and casting method |
US20150337959A1 (en) * | 2014-05-23 | 2015-11-26 | Federal-Mogul Corporation | Piston with keystone second ring groove for high temperature internal combustion engines |
KR101655571B1 (ko) * | 2014-11-17 | 2016-09-08 | 현대자동차주식회사 | 금형 코어 고정 방법 및 코어 고정 캡 |
KR20160119970A (ko) | 2015-04-07 | 2016-10-17 | 동양피스톤 주식회사 | 세라믹 코어를 이용한 스틸 피스톤 제조방법 |
DE102015213689A1 (de) * | 2015-07-21 | 2017-01-26 | Federal-Mogul Nürnberg GmbH | Kolben für einen Verbrennungsmotor |
US10036346B2 (en) | 2015-09-10 | 2018-07-31 | Ford Global Technologies, Llc | Lubrication circuit and method of forming |
US10227948B2 (en) * | 2015-12-18 | 2019-03-12 | Mahle International Gmbh | Piston for an internal combustion engine |
CN105756801A (zh) * | 2016-01-29 | 2016-07-13 | 马勒技术投资(中国)有限公司 | 一种适应高爆压的含双铸铁圈及内冷油道的汽油机活塞 |
KR101934941B1 (ko) * | 2016-05-02 | 2019-01-04 | 동양피스톤 주식회사 | 내연 기관용 피스톤 및 냉각 채널 코어 |
DE102017201583A1 (de) * | 2017-02-01 | 2018-08-02 | Robert Bosch Gmbh | Verfahren zum Herstellen einer Kühlvorrichtung |
KR102013436B1 (ko) * | 2018-01-12 | 2019-08-22 | 동양피스톤 주식회사 | 내연기관용 피스톤 |
DE102018201556A1 (de) * | 2018-02-01 | 2019-08-01 | Volkswagen Aktiengesellschaft | Hubkolben für eine Hubkolbenbrennkraftmaschine und Verwendung eines Hubkolbens in einer Hubkolbenbrennkraftmaschine |
DE102018218497A1 (de) * | 2018-10-29 | 2020-04-30 | Mahle International Gmbh | Kolben einer Brennkraftmaschine |
CN113187618B (zh) * | 2021-05-08 | 2022-09-20 | 滨州学院 | 一种轻量化内冷一体铝活塞 |
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JPS585455A (ja) | 1981-06-30 | 1983-01-12 | Riken Corp | ピストン |
JPS60227964A (ja) * | 1984-04-27 | 1985-11-13 | Mazda Motor Corp | ピストン製造法 |
US4662319A (en) | 1984-12-20 | 1987-05-05 | S.E.M.T., S.A. | Structurally lightened piston utilizable especially in an internal combustion engine |
JPH03102043U (de) * | 1990-02-06 | 1991-10-24 | ||
JPH0586971A (ja) * | 1991-09-27 | 1993-04-06 | Aisin Seiki Co Ltd | 内燃機関用ピストンの製造方法 |
GB2349195A (en) | 1999-04-19 | 2000-10-25 | Seneca Tech Ltd | Piston with integral coolant ring gallery |
DE10003821A1 (de) | 2000-01-28 | 2001-08-09 | Ks Kolbenschmidt Gmbh | Kolben, insbesondere ein Leichtmetallkolben für eine Brennkraftmaschine |
DE10036481A1 (de) * | 2000-07-20 | 2002-02-07 | Metallwerke Harzgerode Gmbh | Verfahren zur Herstellung von Aluminiumkolben |
DE10131725A1 (de) * | 2001-06-29 | 2003-01-16 | Ks Kolbenschmidt Gmbh | Unter Krafteinwirkung in der Gießvorrichtung gehaltener Salzkern |
WO2006014741A2 (en) * | 2004-07-21 | 2006-02-09 | Federal-Mogul Corporation | One piece cast steel monobloc piston |
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DE856535C (de) * | 1949-10-29 | 1952-11-24 | Bernhard Rieseler | Kolben fuer Brennkraftmaschinen |
GB1055737A (en) * | 1964-03-25 | 1967-01-18 | Wellworthy Ltd | Improvements in casting processes |
IT1109578B (it) * | 1978-03-22 | 1985-12-23 | Mondial Piston Galli Ercole C | Stantuffo per motori a combustione interna |
IT1118774B (it) * | 1979-06-12 | 1986-03-03 | Ass Eng Italia | Perfezionamento relativo aglistantuffi nei motori diesel |
US4506632A (en) * | 1983-07-28 | 1985-03-26 | Toyota Jidosha Kabushiki Kaisha | Piston assembly with cooling lubricant reservoir defining member engaged to piston pin mounting bosses |
US4614219A (en) * | 1985-04-19 | 1986-09-30 | General Motors Corporation | Foundry core for crosshead piston head member |
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JP2724358B2 (ja) | 1989-06-27 | 1998-03-09 | 株式会社ブリヂストン | 複写機用搬送ベルト |
JP2700701B2 (ja) * | 1989-10-31 | 1998-01-21 | スズキ株式会社 | 内燃機関用ピストン |
DE19747746C1 (de) * | 1997-10-29 | 1998-11-19 | Alcan Gmbh | Gekühlter Kolben für Verbrennungskraftmaschinen und Verbrennungskraftmaschinen mit derartigen Kolben |
DE19954725A1 (de) * | 1999-11-12 | 2001-05-23 | Ks Kolbenschmidt Gmbh | Kolben mit einer Verbindung von einem Kühlkanal zu einer Kolbenbolzenbohrung |
US6760961B2 (en) * | 2002-02-12 | 2004-07-13 | Focus: Hope | Piston machining |
-
2005
- 2005-12-21 DE DE102005061075A patent/DE102005061075A1/de not_active Withdrawn
-
2006
- 2006-12-15 CN CN2006800473511A patent/CN101331309B/zh not_active Expired - Fee Related
- 2006-12-15 KR KR1020087014506A patent/KR20080080546A/ko not_active Application Discontinuation
- 2006-12-15 US US12/086,841 patent/US7921555B2/en not_active Expired - Fee Related
- 2006-12-15 JP JP2008546114A patent/JP2009520901A/ja active Pending
- 2006-12-15 BR BRPI0620283-7A patent/BRPI0620283A2/pt not_active Application Discontinuation
- 2006-12-15 WO PCT/DE2006/002255 patent/WO2007073719A1/de active Application Filing
- 2006-12-15 EP EP06828686A patent/EP1963655A1/de not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS585455A (ja) | 1981-06-30 | 1983-01-12 | Riken Corp | ピストン |
JPS60227964A (ja) * | 1984-04-27 | 1985-11-13 | Mazda Motor Corp | ピストン製造法 |
US4662319A (en) | 1984-12-20 | 1987-05-05 | S.E.M.T., S.A. | Structurally lightened piston utilizable especially in an internal combustion engine |
JPH03102043U (de) * | 1990-02-06 | 1991-10-24 | ||
JPH0586971A (ja) * | 1991-09-27 | 1993-04-06 | Aisin Seiki Co Ltd | 内燃機関用ピストンの製造方法 |
GB2349195A (en) | 1999-04-19 | 2000-10-25 | Seneca Tech Ltd | Piston with integral coolant ring gallery |
DE10003821A1 (de) | 2000-01-28 | 2001-08-09 | Ks Kolbenschmidt Gmbh | Kolben, insbesondere ein Leichtmetallkolben für eine Brennkraftmaschine |
DE10036481A1 (de) * | 2000-07-20 | 2002-02-07 | Metallwerke Harzgerode Gmbh | Verfahren zur Herstellung von Aluminiumkolben |
DE10131725A1 (de) * | 2001-06-29 | 2003-01-16 | Ks Kolbenschmidt Gmbh | Unter Krafteinwirkung in der Gießvorrichtung gehaltener Salzkern |
WO2006014741A2 (en) * | 2004-07-21 | 2006-02-09 | Federal-Mogul Corporation | One piece cast steel monobloc piston |
Also Published As
Publication number | Publication date |
---|---|
EP1963655A1 (de) | 2008-09-03 |
KR20080080546A (ko) | 2008-09-04 |
BRPI0620283A2 (pt) | 2011-11-08 |
CN101331309B (zh) | 2010-12-08 |
JP2009520901A (ja) | 2009-05-28 |
CN101331309A (zh) | 2008-12-24 |
US7921555B2 (en) | 2011-04-12 |
DE102005061075A1 (de) | 2007-06-28 |
US20090025550A1 (en) | 2009-01-29 |
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