SE9501962L - Combustion engine with variable compression ratio - Google Patents
Combustion engine with variable compression ratioInfo
- Publication number
- SE9501962L SE9501962L SE9501962A SE9501962A SE9501962L SE 9501962 L SE9501962 L SE 9501962L SE 9501962 A SE9501962 A SE 9501962A SE 9501962 A SE9501962 A SE 9501962A SE 9501962 L SE9501962 L SE 9501962L
- Authority
- SE
- Sweden
- Prior art keywords
- piston
- cylinder
- work
- compression ratio
- hydraulic
- 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
Abstract
The internal combustion (IC) engine is of the Otto or diesel type with one or more work cylinders with variable geometrical compression ratio, and incorporates, for each work cylinder, a combustion chamber formed between a work piston and a cylinder head with a movable wall for variation of the combustion chamber vol. The wall is formed by a second piston in a second cylinder communicating with the work cylinders. A drive unit is connected to the second piston, which via control components controls the second piston position in the second cylinder at least in relation to the engine crankshaft position and load. The drive unit comprises a hydraulic piston (8), which is connected with the second piston (5), and is accommodated in a hydraulic cylinder (9), which via a valve arrangement (13, 14, 15, 16) controlled by an electronic control unit (17) communicates with a pressure chamber (18) contg. hydraulic fluid and gas under excess pressure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9501962A SE504359C2 (en) | 1995-05-29 | 1995-05-29 | IC engine with variable compression ratio |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9501962A SE504359C2 (en) | 1995-05-29 | 1995-05-29 | IC engine with variable compression ratio |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9501962D0 SE9501962D0 (en) | 1995-05-29 |
SE9501962L true SE9501962L (en) | 1996-11-30 |
SE504359C2 SE504359C2 (en) | 1997-01-20 |
Family
ID=20398444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9501962A SE504359C2 (en) | 1995-05-29 | 1995-05-29 | IC engine with variable compression ratio |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE504359C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE539155C2 (en) * | 2015-10-07 | 2017-04-18 | Hedman Ericsson Patent Ab | Procedure for diesel engine and diesel engine for application of the procedure |
SE543587C2 (en) * | 2018-12-14 | 2021-04-06 | Hedman Ericsson Patent Ab | Method for producing a high exhaust temperature at engine part load in a diesel engine and apparatus for carrying out the method |
-
1995
- 1995-05-29 SE SE9501962A patent/SE504359C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9501962D0 (en) | 1995-05-29 |
SE504359C2 (en) | 1997-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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