Engine braking system using spring loaded valve
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United States of America Patent
Stats
-
Dec 31, 2013
Grant Date -
Aug 15, 2013
app pub date -
Apr 16, 2010
filing date -
Apr 16, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An engine braking system includes an exhaust control path between an engine cylinder and an exhaust discharge path. A relief valve has a valve element located within the path, the valve element operable between a closed position to close the exhaust control path, corresponding to an engine operating condition, and an open position to open the exhaust control path, corresponding to an engine-braking condition. A spring urges the valve element toward the closed position. A retainer is arranged to be positioned in two operating positions, a first operating position which prevents opening of the valve element and a second operating position which allows opening of the valve element. An actuator wedge is operable to move between a first position and a second position to move the retainer between the first and second operating positions.
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