Compression ratio control mechanism for internal combustion engines
Patent
·
OSTI ID:6811349
An internal combustion engine is described comprising: a combustion chamber, the chamber having a pair of pistons disposed therein; a pressure chamber; first valve means for providing selective communication between the pressure chamber and the combustion chamber; second valve means for providing selective communication between the pressure chamber and a fuel and air mixture supply; and compression ratio control means connected to the first valve means for opening the first valve means during the intake stroke of the piston and closing the first valve means at selected points during the compression stroke of the piston and retaining the first valve means closed until the subsequent intake stroke, whereby the compression ratio of the engine is variably controlled as a function of the point in the compression stroke at which the first valve means is closed.
- Assignee:
- NOV; NOV-88-027181; EDB-88-178024
- Patent Number(s):
- US 4753198
- OSTI ID:
- 6811349
- Country of Publication:
- United States
- Language:
- English
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