GB1352290A - Multi-piece pistons - Google Patents

Multi-piece pistons

Info

Publication number
GB1352290A
GB1352290A GB4871472A GB4871472A GB1352290A GB 1352290 A GB1352290 A GB 1352290A GB 4871472 A GB4871472 A GB 4871472A GB 4871472 A GB4871472 A GB 4871472A GB 1352290 A GB1352290 A GB 1352290A
Authority
GB
United Kingdom
Prior art keywords
head
skirt
bridge member
piston
flanges
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
Application number
GB4871472A
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Publication of GB1352290A publication Critical patent/GB1352290A/en
Expired legal-status Critical Current

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 
    • F02F3/0015—Multi-part pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
    • F01M2001/086—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating gudgeon pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0448—Steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/042—Expansivity

Abstract

1352290 Pistons TRW Inc 23 Oct 1972 [1 March 1972] 48714/72 Heading F2T A piston comprises a head 10 having a crown 12, a separate skirt having opposed thrust faces 36, 37, alignable bores 22, 24 in the head and the skirt respectively to receive a gudgeon pin for interconnecting the two parts and a bridge member 31 having a coefficient of thermal expansion less than that of the skirt and having its ends anchored in the thrust face regions. The bridge member has its ends formed with tabs 35 to facilitate anchoring and has an upwardly bowed central portion 32 having flanges 33, 34 and forming with the head a cooling chamber 39. In use, during reciprocation of the piston oil entering the chamber 39 through openings 38 in the bridge member cools the underside 20 of the head and is returned to the sump through spaces 40 between the flanges 33, 34, and the confronting walls of the head. A circumferential groove 27 and a space 29 is provided between the head and the skirt. Oil scraped from the cylinder wall by the piston rings is drained through a port 30. The top piston ring groove 17 is formed in an insert 18. The head and skirt are of aluminium alloy and the bridge member is of steel.
GB4871472A 1972-03-01 1972-10-23 Multi-piece pistons Expired GB1352290A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00230741A US3805677A (en) 1972-03-01 1972-03-01 Two-piece oil-cooled piston with thermal expansion control

Publications (1)

Publication Number Publication Date
GB1352290A true GB1352290A (en) 1974-05-08

Family

ID=22866378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4871472A Expired GB1352290A (en) 1972-03-01 1972-10-23 Multi-piece pistons

Country Status (9)

Country Link
US (1) US3805677A (en)
JP (1) JPS526406B2 (en)
AU (1) AU464577B2 (en)
BR (1) BR7208492D0 (en)
CA (1) CA961357A (en)
DE (1) DE2253961B2 (en)
FR (1) FR2174482A5 (en)
GB (1) GB1352290A (en)
IT (1) IT970445B (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5729348Y2 (en) * 1975-09-08 1982-06-26
DE2717692A1 (en) * 1977-04-21 1978-10-26 Elsbett L PISTONS FOR RECEPTACLE COMBUSTION MACHINES, IN PARTICULAR DIESEL ENGINES
US4180027A (en) * 1977-07-20 1979-12-25 Mack Trucks, Inc. Two-piece oil-cooled piston
BR7806090A (en) * 1978-09-15 1980-03-25 Metal Leve Sa Ind Com PISTON WITH INDEPENDENT SKIRT
US4377967A (en) * 1981-03-27 1983-03-29 Mack Trucks, Inc. Two-piece piston assembly
US4508019A (en) * 1982-03-29 1985-04-02 Deere & Company Reduced impact piston assembly
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
JPS6090876U (en) * 1983-11-25 1985-06-21 日本電気ホームエレクトロニクス株式会社 Panel mounting structure
JPS60153453A (en) * 1984-01-24 1985-08-12 Toyota Motor Corp Piston for internal-combustion engine
DE3516308A1 (en) * 1985-05-07 1986-11-13 Daimler-Benz Ag, 7000 Stuttgart Piston for an internal combustion engine
DE3540085A1 (en) * 1985-11-12 1987-05-14 Alcan Aluminiumwerke PISTON FOR INTERNAL COMBUSTION ENGINES
DE3643039A1 (en) * 1986-12-17 1988-06-30 Mahle Gmbh COOLABLE SUBMERSIBLE PISTON FOR COMBUSTION ENGINES
US4986167A (en) * 1989-05-25 1991-01-22 Caterpillar Inc. Articulated piston with a cooling recess having a preestablished volume therein
BR9001916A (en) * 1990-04-20 1991-11-12 Metal Leve Sa PROCESS OF OBTAINING REFRIGERATED PUMP AND REFRIGERATED PUMP
DE4108650C2 (en) * 1990-05-08 1999-04-15 Mahle Gmbh Cooled plunger for internal combustion engines with separate piston upper part and piston skirt
US5868112A (en) * 1996-12-19 1999-02-09 Cummins Engine Company, Inc. Deep angle injection nozzle and piston having complementary combustion bowl
DE19846496A1 (en) * 1998-10-09 2000-04-13 Mahle Gmbh Internal combustion engine piston with base, beneath which is oil-fed cooling chamber with lower limit formed by plate fixed to piston, pressure-loaded devices pressing elastically deformable plate in direction of piston base
EP1268991B1 (en) * 2000-03-28 2006-07-05 Federal-Mogul Corporation Heavy duty piston having oil splash deflector
US6499387B2 (en) 2001-03-06 2002-12-31 Federal-Mogul World Wide, Inc. Unified multi-piece piston and method of manufacture
US6557514B1 (en) * 2001-10-23 2003-05-06 Federal-Mogul World Wide, Inc. Closed gallery monobloc piston having oil drainage groove
US6732703B2 (en) * 2002-06-11 2004-05-11 Cummins Inc. Internal combustion engine producing low emissions
US7210448B2 (en) * 2002-06-11 2007-05-01 Cummins, Inc. Internal combustion engine producing low emissions
DE102004061778A1 (en) 2004-09-29 2006-04-06 Ks Kolbenschmidt Gmbh Simple friction weld
DE102004057284A1 (en) * 2004-11-26 2006-06-14 Fev Motorentechnik Gmbh Lightweight piston for thermally highly stressed pistons
DE102005055365A1 (en) * 2004-12-10 2006-06-22 Mahle International Gmbh Piston for an internal combustion engine and method for coating its hub bores
DE102004061777A1 (en) * 2004-12-22 2006-08-17 Ks Kolbenschmidt Gmbh Piston window with Scupperslots and clearance
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
SE535330C2 (en) 2010-12-09 2012-06-26 Peter Nyberg Högtemperaturkolv
WO2012125961A1 (en) 2011-03-17 2012-09-20 Cummins Intellectual Property, Inc. Piston for internal combustion engine
US9216474B2 (en) * 2012-04-24 2015-12-22 Industrial Parts Depot, Llc Two-piece friction-welded piston
US9797337B2 (en) 2015-07-10 2017-10-24 Mahle International Gmbh Oil-cooled piston for an internal combustion engine
EP3452712A1 (en) 2016-05-04 2019-03-13 KS Kolbenschmidt GmbH Piston

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1548329A (en) * 1923-06-02 1925-08-04 Adolph L Nelson Piston
US1745860A (en) * 1927-06-17 1930-02-04 Noble Warren Piston
US1929831A (en) * 1931-06-05 1933-10-10 Perfect Circle Co Composite piston
US2110346A (en) * 1934-07-31 1938-03-08 Perfect Circle Co Piston
US2180521A (en) * 1937-12-08 1939-11-21 Harley Davidson Motor Co Inc Piston
US2240967A (en) * 1940-03-11 1941-05-06 Sterling Corp Piston

Also Published As

Publication number Publication date
JPS4899513A (en) 1973-12-17
FR2174482A5 (en) 1973-10-12
DE2253961B2 (en) 1977-08-11
AU4831072A (en) 1974-05-02
IT970445B (en) 1974-04-10
DE2253961A1 (en) 1973-09-13
AU464577B2 (en) 1975-08-28
BR7208492D0 (en) 1973-12-13
JPS526406B2 (en) 1977-02-22
CA961357A (en) 1975-01-21
US3805677A (en) 1974-04-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee