Internal combustion engine with variable combustion chamber

Details Internal combustion engine with variable combustion chamber Internal combustion engine with variable combustion chamber

F - Mech Eng,Light,Heat,Weapons

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F02B 75/04 (2006.01) F02B 41/04 (2006.01) F02D 15/04 (2006.01) F02F 1/42 (2006.01) F02B 1/04 (2006.01) F02B 3/06 (2006.01) F02B 75/02 (2006.01)

Patent

CA 2125039

2125039 9311350 PCTABS00022 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 (9) that is inserted into the combustion chamber, and wherein the intake valve (34) is closed before the piston (32) 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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