Compression release mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 21, 2004
Grant Date -
Jul 29, 2004
app pub date -
Jan 24, 2003
filing date -
Jan 24, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A compression release mechanism for small internal combustion engines, including a compression release member having an auxiliary cam and a weight section. The compression release member is supported for rotation on an annular bearing surface which is in eccentric relation to the longitudinal axis of the engine camshaft. At engine cranking speeds, the compression release member rotates with the camshaft, and the auxiliary cam projects beyond the base circle of a cam lobe on the camshaft to periodically engage a valve to vent pressure from the engine combustion chamber during the compression stroke of the piston to aid in engine cranking. After the engine starts, rapid rotation of the camshaft causes the compression release member to rotate under the inertial load of the weight section thereof to a position in which the auxiliary cam is retracted within the base circle of the cam lobe such that combustion may proceed in a conventional manner.
First Claim
Other Claims data not available
