SE9503281D0 - Combustion engine with variable geometric compression ratio - Google Patents
Combustion engine with variable geometric compression ratioInfo
- 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
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.
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)
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)
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 |
-
1995
- 1995-09-21 SE SE9503281A patent/SE504993C2/en not_active IP Right Cessation
-
1996
- 1996-09-23 WO PCT/SE1996/001190 patent/WO1997011264A1/en active Application Filing
- 1996-09-23 AU AU71026/96A patent/AU7102696A/en not_active Abandoned
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5271229A (en) | Method and apparatus to improve a turbocharged engine transient response | |
US4615306A (en) | Engine valve timing control system | |
US5255650A (en) | Engine braking utilizing unit valve actuation | |
US6354252B1 (en) | Device for varying a piston engine effective volumetric displacement and/or volumetric ratio of during its operation | |
WO1996030631A3 (en) | Camless engines with compression release braking | |
US5522358A (en) | Fluid controlling system for an engine | |
CA2047219A1 (en) | A method and a device for engine braking a four stroke internal combustion engine | |
WO2003040530A3 (en) | Split four stroke engine | |
DE60225451D1 (en) | DIVIDED FOUR-STORE COMBUSTION ENGINE | |
ATE497093T1 (en) | COMBUSTION ENGINE WITH FREE PISTONS | |
WO1999015872A3 (en) | Method for evaluating the march of pressure in a combustion chamber | |
JPH04504157A (en) | Variable compression ratio internal combustion engine | |
CA2031592A1 (en) | Internal combustion engine | |
ATE405734T1 (en) | COMBUSTION ENGINE WITH STEAM EXPANSION STROKE | |
WO2002027163A8 (en) | Internal combustion engine | |
GB2119853A (en) | Four-cylinder I.C. engine operable with two effective cylinders | |
SE9503281L (en) | Combustion engine with variable geometric compression ratio | |
JPS5685527A (en) | Double piston combustion chamber moving type internal combustion engine | |
EP0156996A1 (en) | Engine valve timing control system | |
GB2363164A (en) | Method of operating a free piston internal combustion engine with pulse compression | |
DE69701585D1 (en) | Two stroke internal combustion engine with valve motion control means | |
CA2234150A1 (en) | Floating piston, piston-valve engine | |
WO2004109077B1 (en) | Hcci engine with combustion-tailoring chamber | |
ATE15527T1 (en) | VARIABLE COMPRESSION RATIO STRATIFICATION LOAD ENGINE. | |
ES8306828A1 (en) | Internal combustion engine with variable auxiliary chamber. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 9503281-9 Format of ref document f/p: F |