Exhaust control valve for two-stroke cycle engines and...

Details Exhaust control valve for two-stroke cycle engines and... Exhaust control valve for two-stroke cycle engines and...

F - Mech Eng,Light,Heat,Weapons

02

B

171/18, 123/183

F02B 75/02 (2006.01) F02D 13/02 (2006.01) F02B 1/04 (2006.01)

Patent

CA 1329139

EXHAUST CONTROL VALVE FOR TWO-STROKE CYCLE ENGINES AND PROCESS FOR USING THE SAME ABSTRACT An exhaust control valve for two-stroke cycle engines is disclosed. This valve is within the exhaust passage, seals against the piston, and delays opening of the exhaust passage to the combustion chamber during the expansion stroke of the piston for a preselected number of degrees of rotation of the crankshaft while permitting full opening of the exhaust port during the scavenging cycle. Also disclosed are means for modifying opening of the exhaust valve at high engine speeds to improve scavenging.

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