Slide exhaust control valve for fuel injected two-stroke cycle engines and process for using same
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United States of America Patent
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-
Mar 27, 1990
Issued Date -
N/A
app pub date -
May 15, 1989
filing date -
Sep 15, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sliding exhaust control valve for two-stroke cycle engines is disclosed. This valve actuates at least partially through the exhaust passage and delays flow from the combustion chamber through the exhaust passage during the expansion stroke of the piston while permitting full opening of the exhaust passage and giving complete blow down before the scavenging cycle of the engine. Also disclosed is a mechanical linkage mechanism between the slide valve and the crankshaft and cam controlled actuation means to provide precise control of the exhaust valve throughout the engine cycle.
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