Reciprocating exhauster
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United States of America Patent
Stats
-
Jun 25, 1985
Grant Date -
N/A
app pub date -
Jun 9, 1983
filing date -
Jun 9, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A reciprocating, preferably a piston-type, exhauster adapted for mounting on an engine crankcase and having, on opposite sides of the piston, a high clearance volume inlet chamber and a low clearance volume exhaust chamber. The piston is operated by an engine driven cam acting on the piston rod which passes through the exhaust chamber and moves against a return spring in the inlet chamber. As the piston moves in the cylinder air is drawn from the inlet chamber through a non-return valve in the piston to the exhaust chamber and then is discharged directly into the engine crankcase.
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