FR2425544A1 - Two stroke IC engine - has cam operated inlet valve and piston controlled exhaust ports in cylinder - Google Patents
Two stroke IC engine - has cam operated inlet valve and piston controlled exhaust ports in cylinderInfo
- Publication number
- FR2425544A1 FR2425544A1 FR7813637A FR7813637A FR2425544A1 FR 2425544 A1 FR2425544 A1 FR 2425544A1 FR 7813637 A FR7813637 A FR 7813637A FR 7813637 A FR7813637 A FR 7813637A FR 2425544 A1 FR2425544 A1 FR 2425544A1
- Authority
- FR
- France
- Prior art keywords
- engine
- cylinder
- stroke
- inlet valve
- exhaust ports
- 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.)
- Withdrawn
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
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
-
- 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
- F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
- F02B41/02—Engines with prolonged expansion
- F02B41/04—Engines with prolonged expansion in main cylinders
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The engine has a piston reciprocating in a cylinder. There is a poppet type inlet valve in the head of the cylinder worked by a cam on a camshaft driven by the engine. At the lower part of the cylinder there are exhaust ports uncovered by the piston as it reaches the bottom of its stroke. The inlet valve is timed to open before the exhaust ports are uncovered on the downstroke and to close after they are covered on the up stroke. This gives good scavenging. The engine is supercharged by an air pump driven by the engine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7813637A FR2425544A1 (en) | 1978-05-09 | 1978-05-09 | Two stroke IC engine - has cam operated inlet valve and piston controlled exhaust ports in cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7813637A FR2425544A1 (en) | 1978-05-09 | 1978-05-09 | Two stroke IC engine - has cam operated inlet valve and piston controlled exhaust ports in cylinder |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2425544A1 true FR2425544A1 (en) | 1979-12-07 |
Family
ID=9208019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7813637A Withdrawn FR2425544A1 (en) | 1978-05-09 | 1978-05-09 | Two stroke IC engine - has cam operated inlet valve and piston controlled exhaust ports in cylinder |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2425544A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0025503A1 (en) * | 1979-08-30 | 1981-03-25 | Scherf, Eva | Reciprocating piston engine |
FR2486146A1 (en) * | 1980-07-02 | 1982-01-08 | Farkas Pierre | INSTALLATION FOR THE SUPPLY OF A HEAT ENGINE, AS WELL AS THE HEAT ENGINES PROVIDED WITH THIS INSTALLATION |
US4399778A (en) * | 1982-01-18 | 1983-08-23 | Antonio Ancheta | Two cycle internal combustion engine |
-
1978
- 1978-05-09 FR FR7813637A patent/FR2425544A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0025503A1 (en) * | 1979-08-30 | 1981-03-25 | Scherf, Eva | Reciprocating piston engine |
FR2486146A1 (en) * | 1980-07-02 | 1982-01-08 | Farkas Pierre | INSTALLATION FOR THE SUPPLY OF A HEAT ENGINE, AS WELL AS THE HEAT ENGINES PROVIDED WITH THIS INSTALLATION |
US4399778A (en) * | 1982-01-18 | 1983-08-23 | Antonio Ancheta | Two cycle internal combustion engine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |