SE9503281D0 - Combustion engine with variable geometric compression ratio - Google Patents

Combustion engine with variable geometric compression ratio

Info

Publication number
SE9503281D0
SE9503281D0 SE9503281A SE9503281A SE9503281D0 SE 9503281 D0 SE9503281 D0 SE 9503281D0 SE 9503281 A SE9503281 A SE 9503281A SE 9503281 A SE9503281 A SE 9503281A SE 9503281 D0 SE9503281 D0 SE 9503281D0
Authority
SE
Sweden
Prior art keywords
cylinder
combustion engine
valve
compression ratio
movable piston
Prior art date
Application number
SE9503281A
Other languages
Swedish (sv)
Other versions
SE504993C2 (en
SE9503281L (en
Inventor
Christer Lindstroem
Original Assignee
Beta Maskin Ab
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 Beta Maskin Ab filed Critical Beta Maskin Ab
Priority to SE9503281A priority Critical patent/SE504993C2/en
Publication of SE9503281D0 publication Critical patent/SE9503281D0/en
Priority to PCT/SE1996/001190 priority patent/WO1997011264A1/en
Priority to AU71026/96A priority patent/AU7102696A/en
Publication of SE9503281L publication Critical patent/SE9503281L/en
Publication of SE504993C2 publication Critical patent/SE504993C2/en

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
    • 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

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)
  • Valve Device For Special Equipments (AREA)

Abstract

The invention relates to a method and to an arrangement pertaining to internal combustion engines in which each cylinder (1) communicates with a second cylinder (4) that includes a movable piston (5), by means of which the volume of the combustion chamber (3) can be varied. The movable piston (5) is connected to a double-acting hydraulic piston (7) in a hydraulic cylinder (8), which communicates with a pressure source (15) through the medium of an electromagnetically controlled directional valve (13). A microprocessor (20) controls the valve (13) in response to the position of the engine crank angle and load, and closes the valve to lock the movable piston (5) in a position depending upon the value of said parameters in its cylinder (8) during the compression stroke.
SE9503281A 1995-09-21 1995-09-21 Combustion engine with variable geometric compression ratio SE504993C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9503281A SE504993C2 (en) 1995-09-21 1995-09-21 Combustion engine with variable geometric compression ratio
PCT/SE1996/001190 WO1997011264A1 (en) 1995-09-21 1996-09-23 Method and device at a combustion engine with variable geometrical compression ratio
AU71026/96A AU7102696A (en) 1995-09-21 1996-09-23 Method and device at a combustion engine with variable geometrical compression ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9503281A SE504993C2 (en) 1995-09-21 1995-09-21 Combustion engine with variable geometric compression ratio

Publications (3)

Publication Number Publication Date
SE9503281D0 true SE9503281D0 (en) 1995-09-21
SE9503281L SE9503281L (en) 1997-03-22
SE504993C2 SE504993C2 (en) 1997-06-09

Family

ID=20399558

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9503281A SE504993C2 (en) 1995-09-21 1995-09-21 Combustion engine with variable geometric compression ratio

Country Status (3)

Country Link
AU (1) AU7102696A (en)
SE (1) SE504993C2 (en)
WO (1) WO1997011264A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO904197A0 (en) * 1997-09-09 1997-10-02 Dixon, Michael Patrick Internal combusion engine
CN102937052A (en) * 2012-11-30 2013-02-20 长城汽车股份有限公司 Variable-compression-ratio mechanism of engine
KR101534709B1 (en) * 2013-12-18 2015-07-08 현대자동차 주식회사 Variable compression ratio engine
KR101510352B1 (en) * 2013-12-30 2015-04-08 현대자동차 주식회사 Variable compression ratio engine
CN103953437B (en) * 2014-04-02 2016-09-21 孙大林 A kind of Dual-piston IC engine
CN109339959A (en) * 2018-09-27 2019-02-15 朱伟林 A kind of internal combustion engine and its method improved efficiency

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01100328A (en) * 1987-10-09 1989-04-18 Fuji Heavy Ind Ltd Variable-compression ratio type engine

Also Published As

Publication number Publication date
SE504993C2 (en) 1997-06-09
AU7102696A (en) 1997-04-09
SE9503281L (en) 1997-03-22
WO1997011264A1 (en) 1997-03-27

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