JPS5564131A - Compression ratio varied type internal combustion engine - Google Patents

Compression ratio varied type internal combustion engine

Info

Publication number
JPS5564131A
JPS5564131A JP13778778A JP13778778A JPS5564131A JP S5564131 A JPS5564131 A JP S5564131A JP 13778778 A JP13778778 A JP 13778778A JP 13778778 A JP13778778 A JP 13778778A JP S5564131 A JPS5564131 A JP S5564131A
Authority
JP
Japan
Prior art keywords
compression ratio
changed
engine
internal combustion
combustion engine
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
JP13778778A
Other languages
Japanese (ja)
Inventor
Akira Tominaga
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP13778778A priority Critical patent/JPS5564131A/en
Publication of JPS5564131A publication Critical patent/JPS5564131A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F02B75/047—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of variable crankshaft position

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE: To provide an internal combustion engine, which is designed such that center of rotation of crank shaft is displaceable and compression ratio can be changed corresponding to the engine load, whereby fuel consumption can be lowered in low-load region and occurrence of knocking can be prevented in high-load region.
CONSTITUTION: When control gear 17 is turned by a suitable measn corresponding to the load charactrristics of engine or the like, eccentric sleeve 13 fitted on journal 9b of crank shaft 9 is turned around the center As of rotation. This causes turning of journal 9b, so that center Ac of rotation of shaft 9 is displaced and vertical dis-between these points As and Ac is changed. As the result, stroke of piston 3 supported on crank pin 9a by the intermediary of connecting rod 7 is changed and therefore compression ratio of the engine can be changed.
COPYRIGHT: (C)1980,JPO&Japio
JP13778778A 1978-11-10 1978-11-10 Compression ratio varied type internal combustion engine Pending JPS5564131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13778778A JPS5564131A (en) 1978-11-10 1978-11-10 Compression ratio varied type internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13778778A JPS5564131A (en) 1978-11-10 1978-11-10 Compression ratio varied type internal combustion engine

Publications (1)

Publication Number Publication Date
JPS5564131A true JPS5564131A (en) 1980-05-14

Family

ID=15206825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13778778A Pending JPS5564131A (en) 1978-11-10 1978-11-10 Compression ratio varied type internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5564131A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066350A2 (en) * 1981-05-22 1982-12-08 National Aeronautics And Space Administration Automatic compression adjusting mechanism for internal combustion engines
JPS582340U (en) * 1981-06-29 1983-01-08 いすゞ自動車株式会社 variable compression ratio internal combustion engine
JPS5838344A (en) * 1981-08-31 1983-03-05 Toyota Motor Corp Mechanism of variable compression ratio for internal-combustion engine
JPS5857040A (en) * 1981-09-29 1983-04-05 Toyota Motor Corp Variable compression ratio mechanism of internal- combustion engine
JPS5940537U (en) * 1982-09-03 1984-03-15 トヨタ自動車株式会社 Variable compression ratio mechanism for internal combustion engines
JPS61187937U (en) * 1985-05-17 1986-11-22
JPS6223553A (en) * 1985-07-22 1987-01-31 Honda Motor Co Ltd Selecting device for characteristic of internal-combustion engine
US4721073A (en) * 1985-10-25 1988-01-26 Toyota Jidosha Kabushiki Kaisha Compression ratio changing device using an eccentric bearing for an internal combustion engine
US5165368A (en) * 1992-03-23 1992-11-24 Ford Motor Company Internal combustion engine with variable compression ratio
WO1999061766A1 (en) * 1998-05-29 1999-12-02 Edward Charles Mendler Rigid crankshaft cradle and actuator
US6247430B1 (en) * 1997-10-31 2001-06-19 Fev Motorentechnik Gmbh & Co. Kommandgesellschaft Compression ratio setting device for an internal-combustion engine
US6260532B1 (en) 1998-09-28 2001-07-17 Edward Charles Mendler Rigid crankshaft cradle and actuator
US6443107B1 (en) 1999-05-27 2002-09-03 Edward Charles Mendler Rigid crankshaft cradle and actuator
US6637384B1 (en) 1999-11-12 2003-10-28 Edward Charles Mendler Rigid crankshaft cradle and actuator
WO2011042083A1 (en) * 2009-10-08 2011-04-14 Daimler Ag Internal combustion engine
KR101090801B1 (en) 2009-06-30 2011-12-08 현대자동차주식회사 Variable compression ratio apparatus
CN102733945A (en) * 2012-06-27 2012-10-17 苏成胜 Four-stroke reciprocating piston type internal-combustion engine

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066350A2 (en) * 1981-05-22 1982-12-08 National Aeronautics And Space Administration Automatic compression adjusting mechanism for internal combustion engines
JPS582340U (en) * 1981-06-29 1983-01-08 いすゞ自動車株式会社 variable compression ratio internal combustion engine
JPS6334299B2 (en) * 1981-08-31 1988-07-08 Toyota Motor Co Ltd
JPS5838344A (en) * 1981-08-31 1983-03-05 Toyota Motor Corp Mechanism of variable compression ratio for internal-combustion engine
JPS5857040A (en) * 1981-09-29 1983-04-05 Toyota Motor Corp Variable compression ratio mechanism of internal- combustion engine
JPS5940537U (en) * 1982-09-03 1984-03-15 トヨタ自動車株式会社 Variable compression ratio mechanism for internal combustion engines
JPS6343397Y2 (en) * 1982-09-03 1988-11-11
JPH0426670Y2 (en) * 1985-05-17 1992-06-26
JPS61187937U (en) * 1985-05-17 1986-11-22
JPS6223553A (en) * 1985-07-22 1987-01-31 Honda Motor Co Ltd Selecting device for characteristic of internal-combustion engine
US4721073A (en) * 1985-10-25 1988-01-26 Toyota Jidosha Kabushiki Kaisha Compression ratio changing device using an eccentric bearing for an internal combustion engine
US5165368A (en) * 1992-03-23 1992-11-24 Ford Motor Company Internal combustion engine with variable compression ratio
US6247430B1 (en) * 1997-10-31 2001-06-19 Fev Motorentechnik Gmbh & Co. Kommandgesellschaft Compression ratio setting device for an internal-combustion engine
WO1999061766A1 (en) * 1998-05-29 1999-12-02 Edward Charles Mendler Rigid crankshaft cradle and actuator
US6260532B1 (en) 1998-09-28 2001-07-17 Edward Charles Mendler Rigid crankshaft cradle and actuator
US6443107B1 (en) 1999-05-27 2002-09-03 Edward Charles Mendler Rigid crankshaft cradle and actuator
US6637384B1 (en) 1999-11-12 2003-10-28 Edward Charles Mendler Rigid crankshaft cradle and actuator
KR101090801B1 (en) 2009-06-30 2011-12-08 현대자동차주식회사 Variable compression ratio apparatus
US8646420B2 (en) 2009-06-30 2014-02-11 Hyundai Motor Company Variable compression ratio apparatus
WO2011042083A1 (en) * 2009-10-08 2011-04-14 Daimler Ag Internal combustion engine
JP2013507554A (en) * 2009-10-08 2013-03-04 ダイムラー・アクチェンゲゼルシャフト Internal combustion engine
US8474420B2 (en) 2009-10-08 2013-07-02 Daimler Ag Variable compression ratio internal combustion engine with displaceable cylinder head and cylinder housing
CN102733945A (en) * 2012-06-27 2012-10-17 苏成胜 Four-stroke reciprocating piston type internal-combustion engine

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