JP2018534477A - 冷媒を用いて低減された熱損失を提供するピストン - Google Patents

冷媒を用いて低減された熱損失を提供するピストン Download PDF

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Publication number
JP2018534477A
JP2018534477A JP2018525717A JP2018525717A JP2018534477A JP 2018534477 A JP2018534477 A JP 2018534477A JP 2018525717 A JP2018525717 A JP 2018525717A JP 2018525717 A JP2018525717 A JP 2018525717A JP 2018534477 A JP2018534477 A JP 2018534477A
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JP
Japan
Prior art keywords
cooling cavity
crown
refrigerant
lower crown
piston
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.)
Pending
Application number
JP2018525717A
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English (en)
Japanese (ja)
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JP2018534477A5 (enExample
Inventor
マツオ，エドゥアルド
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.)
Federal Mogul LLC
Original Assignee
Federal Mogul LLC
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 Federal Mogul LLC filed Critical Federal Mogul LLC
Publication of JP2018534477A publication Critical patent/JP2018534477A/ja
Publication of JP2018534477A5 publication Critical patent/JP2018534477A5/ja
Pending 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • 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
    • F01P1/00—Air cooling
    • F01P1/04—Arrangements for cooling pistons
    • 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
    • F01P3/10—Cooling by flow of coolant through 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 
    • F02F3/0084—Pistons  the pistons being constructed from specific materials
    • F02F3/0092—Pistons  the pistons being constructed from specific materials the material being steel-plate
    • 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 
    • F02F3/10—Pistons  having surface coverings
    • 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
    • F02F3/18—Pistons  having cooling means the means being a liquid or solid coolant, e.g. sodium, in a closed chamber in piston
    • 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
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/003—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
    • F02F2200/00—Manufacturing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
JP2018525717A 2015-11-18 2016-11-16 冷媒を用いて低減された熱損失を提供するピストン Pending JP2018534477A (ja)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US201562256986P 2015-11-18 2015-11-18
US62/256,986 2015-11-18
US201662280971P 2016-01-20 2016-01-20
US62/280,971 2016-01-20
US15/352,418 US10294887B2 (en) 2015-11-18 2016-11-15 Piston providing for reduced heat loss using cooling media
US15/352,418 2016-11-15
PCT/US2016/062129 WO2017087433A1 (en) 2015-11-18 2016-11-16 Piston providing for reduced heat loss using cooling media

Publications (2)

Publication Number Publication Date
JP2018534477A true JP2018534477A (ja) 2018-11-22
JP2018534477A5 JP2018534477A5 (enExample) 2019-06-13

Family

ID=58691805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018525717A Pending JP2018534477A (ja) 2015-11-18 2016-11-16 冷媒を用いて低減された熱損失を提供するピストン

Country Status (6)

Country Link
US (1) US10294887B2 (enExample)
EP (1) EP3377749B1 (enExample)
JP (1) JP2018534477A (enExample)
KR (1) KR102636266B1 (enExample)
CN (1) CN110809669B (enExample)
WO (1) WO2017087433A1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2018001895A (es) * 2015-08-27 2018-06-20 Ks Kolbenschmidt Gmbh Piston de un motor de combustion interna que tiene refrigeracion de metal alcalino y metodo para su produccion.
US10859033B2 (en) * 2016-05-19 2020-12-08 Tenneco Inc. Piston having an undercrown surface with insulating coating and method of manufacture thereof
US20200217269A1 (en) * 2019-01-04 2020-07-09 Tenneco Inc. Piston having an undercrown surface with insulating coating and method of manufacture thereof
CN112459917A (zh) * 2020-12-02 2021-03-09 江苏普瑞亚动力科技有限公司 一种新型的活塞连接结构
DE102021213333A1 (de) 2021-11-26 2023-06-01 Federal-Mogul Nürnberg GmbH Kolben mit allseitig geschlossenen und mit Kühlmedium befüllten Kühlhohlräumen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1091513A (en) * 1965-06-11 1967-11-15 Mirrlees Nat Ltd Improvements in or relating to pistons for internal combustion engines
JPH06262298A (ja) * 1993-03-09 1994-09-20 Aisin Seiki Co Ltd 冷却空洞付ピストンの製造方法
US20130055969A1 (en) * 2010-03-02 2013-03-07 Mahle International Gmbh Piston for an internal combustion engine
JP2014034917A (ja) * 2012-08-08 2014-02-24 Hino Motors Ltd エンジンのピストン構造

Family Cites Families (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR965449A (enExample) 1950-09-12
US1678957A (en) 1925-01-29 1928-07-31 Busch Sulzer Bros Diesel Engine Co Piston cooling
US1719215A (en) 1927-01-08 1929-07-02 Faroy Arne Internal-combustion engine
US1878566A (en) 1929-02-01 1932-09-20 Packard Motor Car Co Internal combustion engine
US2126306A (en) 1933-12-22 1938-08-09 Bernard Renee Piston for internal combustion engines
US2840427A (en) 1955-06-10 1958-06-24 Gen Motors Corp Piston
US2772933A (en) 1955-06-22 1956-12-04 Alco Products Inc Pistons
US3066002A (en) * 1960-07-20 1962-11-27 Jr Henry A Rudkin Piston design
US3385175A (en) 1966-06-15 1968-05-28 Mahle Kg Piston
US3516335A (en) 1968-07-03 1970-06-23 Caterpillar Tractor Co Piston with heat dam
US3613521A (en) 1968-11-07 1971-10-19 Komatsu Mfg Co Ltd Piston for internal combustion engine
DE1956121A1 (de) 1969-11-07 1971-05-27 Kloeckner Humboldt Deutz Ag Kolbenkuehlung fuer Hubkolbenbrennkraftmaschinen mit abstellbaren Spritzduesen
FR2238372A5 (enExample) 1973-07-19 1975-02-14 Dampers
US4018194A (en) 1975-01-06 1977-04-19 Texaco Inc. Engine piston with insulated combustion chamber
DE2612041A1 (de) 1975-05-05 1976-11-25 Caterpillar Tractor Co Rotor fuer drehkolbenmaschinen
US4206726A (en) 1977-07-18 1980-06-10 Caterpillar Tractor Co. Double orifice piston cooling nozzle for reciprocating engines
US4300492A (en) 1978-05-22 1981-11-17 Eaton Corporation Thermal barrier valve
US4253430A (en) 1979-01-11 1981-03-03 General Motors Corporation Insulated oil cooled piston assembly
US4270494A (en) 1979-01-11 1981-06-02 General Motors Corporation Insulated oil cooled piston assembly
DE2919638A1 (de) 1979-05-16 1980-11-20 Schmidt Gmbh Karl Kolben fuer brennkraftmaschinen
IT1194060B (it) 1981-07-31 1988-09-14 Ae Borgo Spa Pistone per motori diesel con camera di combustione isolata
DE3222582C2 (de) 1982-06-16 1985-10-03 Berchem & Schaberg Gmbh, 4650 Gelsenkirchen Verfahren zum Herstellen eines Kolbenbodenrohlings durch Schmieden für einen gebauten Kolben
DE3329787A1 (de) 1982-08-20 1984-02-23 AE PLC, Rugby, Warwickshire Kolben und verfahren zu ihrer herstellung
US4517930A (en) 1982-09-28 1985-05-21 Kawasaki Jukogyo Kabushiki Kaisha Piston of combustion engine
EP0141992B1 (de) 1983-10-26 1988-05-04 Mahle Gmbh Mehrteiliger Kolben für Verbrennungsmotoren mit teilisoliertem Kühlölkanal
US4546048A (en) 1984-03-23 1985-10-08 Dana Corporation Composite thermal shield for engine components
DE3502644A1 (de) 1985-01-26 1986-07-31 M.A.N.-B & W Diesel GmbH, 8900 Augsburg Oelgekuehlter, mehrteiliger tauchkolben fuer hubkolbenbrennkraftmaschinen
DE3511835A1 (de) 1985-03-30 1986-10-09 M.A.N.- B & W Diesel GmbH, 8900 Augsburg Oelgekuehlter tauchkolben einer brennkraftmaschine
DE4118400A1 (de) 1990-06-29 1992-01-02 Kolbenschmidt Ag Gebauter, oelgekuehlter kolben fuer dieselmotoren
DE4040611A1 (de) 1990-12-19 1992-07-02 Man B & W Diesel Ag Jet-kolbenkuehlung
DE4120850A1 (de) 1991-06-25 1993-01-07 Kolbenschmidt Ag Gebauter, oelgekuehlter kolben fuer dieselmotoren
DE4430137B4 (de) 1994-08-25 2004-07-22 Mahle Gmbh Mehrteiliger, gekühlter Kolben für Verbrennungsmotoren
DE19618625C1 (de) 1996-05-09 1997-10-23 Daimler Benz Ag Flüssigkeitsgekühlter Kolben für Verbrennungsmotoren
US6003479A (en) 1997-05-12 1999-12-21 Evans; Mark M. Piston construction
EP1222364B2 (en) 1999-10-08 2018-03-28 Federal-Mogul Corporation Dual gallery piston
US20010025568A1 (en) 2000-03-28 2001-10-04 Mahle Gmbh One-piece piston
DE60139329D1 (de) 2000-10-18 2009-09-03 Federal Mogul Corp Mehraxial geschmiedeter kolben
CA2453167A1 (en) 2001-07-30 2003-02-13 Roberto Oscar Appo Metal ring assembly which is assembled and soldered to a support collar in order to form the annular cooling conduit of an internal combustion engine piston, the method of producing said finned metal ring and the metal ring thus obtained
US6513477B1 (en) 2001-09-19 2003-02-04 Federal-Mogul World Wide, Inc. Closed gallery piston having pin bore lubrication
US6491013B1 (en) 2001-09-19 2002-12-10 Federal-Mogul World Wide, Inc. Closed gallery piston having reinforced oil hole
US6539910B1 (en) 2001-09-19 2003-04-01 Federal-Mogul World Wide, Inc. Closed gallery piston having con rod lubrication
US6862976B2 (en) * 2001-10-23 2005-03-08 Federal-Mogul World Wide, Inc. Monobloc piston
DE10214830A1 (de) 2002-04-04 2004-01-08 Mahle Gmbh Öleinlass für einen mit Kühlkanal versehenen Kolben eines Verbrennungsmotors
DE10257022A1 (de) 2002-12-06 2004-06-17 Mahle Gmbh Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor
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
DE112004002568T5 (de) 2004-01-07 2006-11-30 Komatsu Ltd. Kolben für einen Verbrennungsmotor
DE102005042857A1 (de) 2005-09-08 2007-03-22 Ks Kolbenschmidt Gmbh Kolben für eine Brennkraftmaschine
CN1944994A (zh) 2005-10-08 2007-04-11 山东滨州渤海活塞股份有限公司 焊接式锻钢整体活塞及其制造方法
DE102006027354A1 (de) * 2006-06-13 2007-12-20 Mahle International Gmbh Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor
US7654240B2 (en) 2006-08-18 2010-02-02 Caterpillar Inc. Engine piston having an insulating air gap
DE102006055251A1 (de) 2006-11-23 2008-05-29 Mahle International Gmbh Zweiteiliger Kolben für einen Verbrennungsmotor
CN101092914A (zh) 2007-07-20 2007-12-26 山东滨州渤海活塞股份有限公司 带封闭内冷油腔的焊接式锻钢整体活塞及其制造方法
US20110203545A1 (en) 2008-09-05 2011-08-25 Ks Kolbenschmidt Gmbh Method For Manufacturing A Piston Of An Internal Combustion Engine, Comprising An Improved Aluminum Silicon Alloy
DE102008055848A1 (de) 2008-11-04 2010-05-06 Ks Kolbenschmidt Gmbh Kühlkanalkolben einer Brennkraftmaschine mit einem Verschlusselement, das den Kühlkanal verschließt
DE102008056203A1 (de) 2008-11-06 2010-05-12 Mahle International Gmbh Mehrteiliger Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung
US8601996B2 (en) 2009-05-08 2013-12-10 Caterpillar Inc. Single piece piston body for an internal combustion engine
US20110073061A1 (en) * 2009-09-28 2011-03-31 Jeungsuck Chae Pistons with a rough surface
US8327537B2 (en) 2009-12-23 2012-12-11 Federal Mogul Corporation Reinforced dual gallery piston and method of construction
US20110197845A1 (en) 2010-02-17 2011-08-18 William Flowers Piston assembly
DE102010015568A1 (de) 2010-04-19 2011-10-20 Ks Kolbenschmidt Gmbh Kolbenoberteil eines gebauten oder geschweißten Kolbens mit erweiterten Kühlräumen
US9856820B2 (en) 2010-10-05 2018-01-02 Mahle International Gmbh Piston assembly
US8522745B2 (en) 2010-10-25 2013-09-03 Eddie H. Doss Reinforced piston and connecting rod assembly
DE102010051681B4 (de) 2010-11-17 2019-09-12 Daimler Ag Verfahren zur Herstellung eines Kühlkanalkolbens
US8863381B2 (en) 2010-12-22 2014-10-21 GM Global Technology Operations LLC Method of making a piston oil gallery using a hollow metallic core
US8863647B2 (en) 2011-05-04 2014-10-21 GM Global Technology Operations LLC Oil gallery piston with improved thermal conductivity
US8973484B2 (en) 2011-07-01 2015-03-10 Mahle Industries Inc. Piston with cooling gallery
DE102011111319A1 (de) 2011-08-26 2013-02-28 Mahle International Gmbh Kolben für einen Verbrennungsmotor
US9593641B2 (en) 2011-09-21 2017-03-14 Mahle International Gmbh Laser welded piston assembly
US8739755B2 (en) 2011-10-24 2014-06-03 Mahle International Gmbh Piston for an internal combustion engine
DE102011085442A1 (de) 2011-10-28 2013-05-02 Ks Kolbenschmidt Gmbh Verfahren und Werkzeugmaschine zur spanenden Bearbeitung
US9163579B2 (en) 2011-11-28 2015-10-20 Federal-Mogul Corporation Piston with anti-carbon deposit coating and method of construction thereof
US9169800B2 (en) 2011-11-28 2015-10-27 Federal-Mogul Corporation Piston with anti-carbon deposit coating and method of construction thereof
US8662026B2 (en) * 2012-02-10 2014-03-04 Federal-Mogul Corporation Piston with supplemental cooling gallery and internal combustion engine therewith
US8955486B2 (en) 2012-02-10 2015-02-17 Federal Mogul Corporation Piston with enhanced cooling gallery
US8955487B2 (en) 2012-02-10 2015-02-17 Federal-Mogul Corporation Piston and cooled piston ring therefor and method of construction thereof
DE102012206392A1 (de) 2012-04-18 2013-10-24 Mahle International Gmbh Kolben für eine Brennkraftmaschine
DE102012215541A1 (de) 2012-08-31 2014-03-06 Mahle International Gmbh Kolben
WO2014052779A2 (en) 2012-09-27 2014-04-03 Federal-Mogul Corporation Reduced compression height piston and piston assembly therewith and methods of construction thereof
WO2014071274A1 (en) 2012-11-02 2014-05-08 Federal-Mogul Corporation Piston with a cooling gallery partially filled with a thermally conductive metal-containing composition
BR112015020267A2 (pt) 2013-02-22 2017-08-22 Mahle Int Gmbh Conjunto do piston com apoio de solda
US9291119B2 (en) 2013-03-14 2016-03-22 Mahle International Gmbh Piston assembly with preloaded support surfaces
KR101383121B1 (ko) 2013-07-01 2014-04-09 삼영기계주식회사 피스톤 조립체
KR20160146925A (ko) * 2014-04-30 2016-12-21 페더럴-모걸 코오포레이숀 갤러리가 채워지는 강철 피스톤
US10184422B2 (en) 2014-12-30 2019-01-22 Tenneco Inc. Reduced compression height dual gallery piston, piston assembly therewith and methods of construction thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1091513A (en) * 1965-06-11 1967-11-15 Mirrlees Nat Ltd Improvements in or relating to pistons for internal combustion engines
JPH06262298A (ja) * 1993-03-09 1994-09-20 Aisin Seiki Co Ltd 冷却空洞付ピストンの製造方法
US20130055969A1 (en) * 2010-03-02 2013-03-07 Mahle International Gmbh Piston for an internal combustion engine
JP2014034917A (ja) * 2012-08-08 2014-02-24 Hino Motors Ltd エンジンのピストン構造

Also Published As

Publication number Publication date
KR102636266B1 (ko) 2024-02-16
EP3377749B1 (en) 2021-11-03
CN110809669B (zh) 2022-03-18
CN110809669A (zh) 2020-02-18
US10294887B2 (en) 2019-05-21
KR20180081755A (ko) 2018-07-17
US20170138296A1 (en) 2017-05-18
WO2017087433A1 (en) 2017-05-26
EP3377749A1 (en) 2018-09-26

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