Internal combustion engine with variable combustion chambers and

Details Internal combustion engine with variable combustion chambers and Internal combustion engine with variable combustion chambers and

1991-12-03

1994-08-30

Okonsky, David A.

Internal-combustion engines

Adjustable combustion chamber

Piston in head adjusted

123316, F02B 7504

Patent

active

053417712

ABSTRACT:
An internal combustion engine and method for operating the same wherein the combustion chamber volume can be varied depending on throttle position by a member that is inserted into the combustion chamber, and wherein the intake valve is closed before the piston completes its intake stroke so that the expansion stroke is effectively lengthened. In the case of a two-stroke engine, some of the intake gas is expelled before combustion to achieve an effective lengthening of the expansion stroke.

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patent: 4987863 (1991-01-01), Daly
patent: 5063883 (1991-11-01), Dingess

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