Engine brake and method
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United States of America Patent
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Aug 6, 1991
Grant Date -
N/A
app pub date -
Aug 7, 1990
filing date -
Aug 7, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A compression relieve type braking apparatus comprising a slave piston, a master piston, a housing defining a first passageway, and a pressure release mechanism. The first passageway interconnects the master piston and the slave piston. The master piston is responsive to the engine cycle in a manner to move between a first master piston position and a second master piston position. The pressure release means is responsive to positioning of the master piston in a manner to relieve pressure in the first passageway when the matter piston (in moving between the first and second master piston positions) reaches a predetermined relief location. The relief of the pressure acts to cause the exhaust valve to retract.
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