Variable compression system for internal combustion engines

Details Variable compression system for internal combustion engines Variable compression system for internal combustion engines

1983-03-18

1985-05-14

Feinberg, Craig R.

Internal-combustion engines

Adjustable combustion chamber

Piston in head adjusted

123 78AA, F02B 7504

Patent

active

045165378

ABSTRACT:
A variable compression system for internal combustion engines whose compression ratio is varied by hydraulic regulation of back and forth movement of a sub-piston slidably mounted within a sub-cylinder communicated with a combustion chamber, comprising a control valve for controlling pressure oil supply to a pressure oil chamber formed on a back face of the sub-piston and communicated, via passages, with a spill port for pressure oil release which is formed in a hollow, reciprocative member cooperatively connected to the sub-piston and relatively movably mounting a spilling regulation member thereon.

REFERENCES:
patent: Re18595 (1932-09-01), Wilson
patent: 830099 (1906-09-01), Packard
patent: 2040652 (1936-05-01), Gaty
patent: 2163015 (1939-06-01), Wagner
patent: 2769433 (1956-11-01), Humphreys
patent: 2883974 (1959-04-01), Heising
patent: 2970581 (1961-02-01), Georges
patent: 4187808 (1980-02-01), Audoux
Paul et al.; "Humphreys Engine Provides Variable Clearance Volume"; SAE Journal, Aug. 1952; pp. 56-60.

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