FR2359284A1 - Ensemble de piston a rapport de compression variable - Google Patents

Ensemble de piston a rapport de compression variable

Info

Publication number
FR2359284A1
FR2359284A1 FR7721670A FR7721670A FR2359284A1 FR 2359284 A1 FR2359284 A1 FR 2359284A1 FR 7721670 A FR7721670 A FR 7721670A FR 7721670 A FR7721670 A FR 7721670A FR 2359284 A1 FR2359284 A1 FR 2359284A1
Authority
FR
France
Prior art keywords
fluid
compression ratio
variable compression
chamber
piston assembly
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
FR7721670A
Other languages
English (en)
Other versions
FR2359284B1 (fr
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.)
TDY Industries LLC
Original Assignee
Teledyne Industries 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 Teledyne Industries Inc filed Critical Teledyne Industries Inc
Publication of FR2359284A1 publication Critical patent/FR2359284A1/fr
Application granted granted Critical
Publication of FR2359284B1 publication Critical patent/FR2359284B1/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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D15/00—Varying compression ratio
    • F02D15/04—Varying compression ratio by alteration of volume of compression space without changing piston stroke
    • 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
    • F02B75/00—Other engines
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/044—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of an adjustable piston length
    • 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
    • F16J1/09—Pistons; Trunk pistons; Plungers with means for guiding fluids
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

L'invention concerne un piston de moteur à combustion interne à rapport de compression variable. Le piston 10 comprend un organe intérieur 12 et un organe extérieur 16 monté télescopiquement sur l'organe intérieur de façon à former entre eux une chambre à fluide 36 dont le volume varie en réponse au mouvement relatif des organes et aux variations de quantité de fluide qu'elle contient et des moyens pour alimenter la chambre en fluide qui comprennent un passage 65, 66, 110 dans lequel est montée une soupape de retenue 68, et une pompe 90, 94 formée dans l'organe intérieur 12 et réalisée de façon à refouler le fluide dans la chambre par le passage d'alimentation. L'invention est applicable aux pistons de moteurs à deux temps.
FR7721670A 1976-07-19 1977-07-13 Ensemble de piston a rapport de compression variable Granted FR2359284A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/706,586 US4079707A (en) 1976-07-19 1976-07-19 Variable compression ratio piston

Publications (2)

Publication Number Publication Date
FR2359284A1 true FR2359284A1 (fr) 1978-02-17
FR2359284B1 FR2359284B1 (fr) 1984-05-11

Family

ID=24838237

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721670A Granted FR2359284A1 (fr) 1976-07-19 1977-07-13 Ensemble de piston a rapport de compression variable

Country Status (10)

Country Link
US (1) US4079707A (fr)
JP (1) JPS6022182B2 (fr)
BR (1) BR7704516A (fr)
CA (1) CA1063449A (fr)
DE (1) DE2732063C2 (fr)
FR (1) FR2359284A1 (fr)
GB (1) GB1530439A (fr)
IL (1) IL52287A (fr)
IT (1) IT1107725B (fr)
SE (1) SE428309B (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827427Y2 (ja) * 1977-09-07 1983-06-14 株式会社東芝 磁気録音再生装置
DE3444834C2 (de) * 1984-02-21 1985-12-19 Mahle Gmbh, 7000 Stuttgart Mehrteiliger Kolben zur Spitzendruckbegrenzung
DE3807244C1 (fr) * 1988-03-05 1989-03-23 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE4041637C1 (fr) * 1990-12-22 1992-04-09 Mtu Friedrichshafen Gmbh
DE4117131C1 (fr) * 1991-05-25 1992-01-23 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De
US5247911A (en) * 1991-10-23 1993-09-28 Vratislav Nenicka Compression ratio control in gasoline engines
US5331928A (en) * 1992-06-03 1994-07-26 Southwest Research Institute Variable compression piston
US5257600A (en) * 1993-01-07 1993-11-02 Ford Motor Company Variable compression piston
US5476074A (en) * 1994-06-27 1995-12-19 Ford Motor Company Variable compression height piston for internal combustion engine
JP4084718B2 (ja) * 2003-07-31 2008-04-30 本田技研工業株式会社 内燃機関の圧縮比可変装置
JP4430654B2 (ja) * 2005-12-28 2010-03-10 本田技研工業株式会社 内燃機関の圧縮比可変装置
EP2543849A1 (fr) * 2010-03-02 2013-01-09 Toyota Jidosha Kabushiki Kaisha Dispositif de commande de pression de combustion
US9856790B2 (en) * 2015-08-10 2018-01-02 Hyundai Motor Company Variable compression ratio apparatus
AT519156B1 (de) * 2016-09-30 2018-11-15 Avl List Gmbh Längenverstellbares Pleuel für eine Hubkolbenmaschine, Hubkolbenmaschine und Fahrzeug
DE102018210265B4 (de) 2018-06-25 2022-04-21 Ford Global Technologies, Llc Kolben für eine Brennkraftmaschine und Verfahren zum Betreiben einer Brennkraftmaschine mit einem derartigen Kolben
CN114776554B (zh) * 2022-06-20 2022-11-15 徐州晟煜隆信息科技有限公司 一种活塞式空气压缩机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1098040A (fr) * 1952-11-11 1955-07-15 Nat Res Dev Moteurs à combustion interne alimentés par turbocompresseur
US2742027A (en) * 1952-06-10 1956-04-17 British Internal Combust Eng Piston means for varying the clearance volume of an internal-combustion engine
US3205878A (en) * 1963-11-29 1965-09-14 Eaton Mfg Co Variable compression ration piston
US3527264A (en) * 1968-03-14 1970-09-08 Continental Aviat & Eng Corp Cooling means for variable compression ratio piston assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1825163A (en) * 1926-08-02 1931-09-29 Schweter Erich Device for altering the clearance space in piston machines
GB1032523A (en) * 1964-01-15 1966-06-08 British Internal Combust Eng Improvements in or relating to internal combustion engines and pistons therefor
US3450113A (en) * 1967-12-08 1969-06-17 Continental Aviat & Eng Corp Valve construction for variable compression ratio piston

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742027A (en) * 1952-06-10 1956-04-17 British Internal Combust Eng Piston means for varying the clearance volume of an internal-combustion engine
FR1098040A (fr) * 1952-11-11 1955-07-15 Nat Res Dev Moteurs à combustion interne alimentés par turbocompresseur
US3205878A (en) * 1963-11-29 1965-09-14 Eaton Mfg Co Variable compression ration piston
US3527264A (en) * 1968-03-14 1970-09-08 Continental Aviat & Eng Corp Cooling means for variable compression ratio piston assembly

Also Published As

Publication number Publication date
BR7704516A (pt) 1978-05-02
IL52287A0 (en) 1977-08-31
JPS5311215A (en) 1978-02-01
SE428309B (sv) 1983-06-20
IT1107725B (it) 1985-11-25
IL52287A (en) 1980-01-31
DE2732063A1 (de) 1978-02-02
DE2732063C2 (de) 1983-06-01
CA1063449A (fr) 1979-10-02
FR2359284B1 (fr) 1984-05-11
US4079707A (en) 1978-03-21
GB1530439A (en) 1978-11-01
JPS6022182B2 (ja) 1985-05-31
SE7705490L (sv) 1978-01-20

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Legal Events

Date Code Title Description
ST Notification of lapse