FR2376348A1 - Piston perfectionne pour moteurs a combustion interne - Google Patents

Piston perfectionne pour moteurs a combustion interne

Info

Publication number
FR2376348A1
FR2376348A1 FR7739214A FR7739214A FR2376348A1 FR 2376348 A1 FR2376348 A1 FR 2376348A1 FR 7739214 A FR7739214 A FR 7739214A FR 7739214 A FR7739214 A FR 7739214A FR 2376348 A1 FR2376348 A1 FR 2376348A1
Authority
FR
France
Prior art keywords
engine
main body
body against
piston
composite 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.)
Granted
Application number
FR7739214A
Other languages
English (en)
Other versions
FR2376348B1 (fr
Inventor
John H Stang
Kenneth A Johnson
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.)
Cummins Inc
Original Assignee
Cummins Engine Co 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
Priority claimed from US05/861,467 external-priority patent/US4242948A/en
Application filed by Cummins Engine Co Inc filed Critical Cummins Engine Co Inc
Publication of FR2376348A1 publication Critical patent/FR2376348A1/fr
Application granted granted Critical
Publication of FR2376348B1 publication Critical patent/FR2376348B1/fr
Granted 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
    • F02F7/00—Casings, e.g. crankcases
    • F02F7/0085—Materials for constructing engines or their parts
    • F02F7/0087—Ceramic materials
    • 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
    • F02F3/0023—Multi-part pistons the parts being bolted or screwed together
    • 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
    • F02F3/12—Pistons  having surface coverings on piston heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L'invention décrit un piston composite comprenant une couronne de céramique ou d'une matière réfractaire fixée à un corps d'aluminium par une vis faite d'un alliage réfractaire. Un élément intercalaire à faible conductivité thermique est constitué, entre la couronne et le corps, par un empilement de disques ayant une faible conductivité thermique effective. Les différences de dilatations sont compensées par des ressorts Belleville enfilés sur la vis. Cette disposition isole la couronne du corps du piston, en réduisant ainsi le gradient de température à travers la couronne, de sorte que sa température peut être maintenue suffisamment élevée pour augmenter le rendement du moteur et pour diminuer les émissions nuisibles.
FR7739214A 1976-12-30 1977-12-26 Piston perfectionne pour moteurs a combustion interne Granted FR2376348A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75576076A 1976-12-30 1976-12-30
US05/861,467 US4242948A (en) 1977-12-16 1977-12-16 Insulated composite piston

Publications (2)

Publication Number Publication Date
FR2376348A1 true FR2376348A1 (fr) 1978-07-28
FR2376348B1 FR2376348B1 (fr) 1981-01-23

Family

ID=27116125

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7739214A Granted FR2376348A1 (fr) 1976-12-30 1977-12-26 Piston perfectionne pour moteurs a combustion interne

Country Status (7)

Country Link
JP (1) JPS5395415A (fr)
AU (1) AU507729B2 (fr)
BR (1) BR7708699A (fr)
CA (1) CA1078274A (fr)
FR (1) FR2376348A1 (fr)
MX (1) MX144594A (fr)
SE (1) SE432463B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0155159A3 (en) * 1984-03-13 1986-12-30 Ngk Insulators, Ltd. An internal combustion engine piston and a method of producing the same
EP0321159A3 (en) * 1987-12-14 1989-09-20 Isuzu Motors Limited Heat insulating engine
EP2462366A4 (fr) * 2009-08-06 2015-04-08 Federal Mogul Corp Piston à faible conductivité thermique et son procédé de construction

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55140764A (en) * 1979-04-16 1980-11-04 Tokyo Shibaura Electric Co Diesel engine part
JPS5874853A (ja) * 1982-10-13 1983-05-06 Toshiba Corp ピストンヘツド
DE102005041409A1 (de) * 2005-09-01 2007-03-08 Mahle International Gmbh Zweiteiliger Kolben für einen Verbrennungsmotor
WO2007068222A1 (fr) * 2005-12-17 2007-06-21 Mahle International Gmbh Piston en deux pieces pour moteur a combustion interne
CN113202654A (zh) * 2021-05-18 2021-08-03 大昌汽车部件(苏州)有限公司 一种组合式发动机活塞及其锻造工艺

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0155159A3 (en) * 1984-03-13 1986-12-30 Ngk Insulators, Ltd. An internal combustion engine piston and a method of producing the same
EP0321159A3 (en) * 1987-12-14 1989-09-20 Isuzu Motors Limited Heat insulating engine
EP2462366A4 (fr) * 2009-08-06 2015-04-08 Federal Mogul Corp Piston à faible conductivité thermique et son procédé de construction

Also Published As

Publication number Publication date
SE432463B (sv) 1984-04-02
AU3210277A (en) 1979-07-05
BR7708699A (pt) 1978-08-22
SE7714878L (sv) 1978-07-01
AU507729B2 (en) 1980-02-28
JPS5395415A (en) 1978-08-21
CA1078274A (fr) 1980-05-27
JPS5637419B2 (fr) 1981-08-31
MX144594A (es) 1981-10-28
FR2376348B1 (fr) 1981-01-23

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Legal Events

Date Code Title Description
ST Notification of lapse