Rocker arm assembly for engine braking
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United States of America Patent
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-
Apr 2, 2019
Grant Date -
Jun 22, 2017
app pub date -
Feb 14, 2014
filing date -
Feb 14, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An exhaust valve rocker arm assembly operable in a combustion engine mode and an engine braking mode can include a rocker shaft and a rocker arm. The rocker shaft can define a pressurized oil supply conduit. The rocker arm can receive the rocker shaft and is configured to rotate around the rocker shaft. The rocker arm can have an oil supply passage defined therein. A valve bridge can engage a first exhaust valve and a second exhaust valve. In the engine braking mode, pressurized oil is communicated through the pressurized oil supply conduit, through the rocker arm oil supply passage and against an actuator such that a first plunger acts on the valve bridge during rotation of the rocker arm to a first angle opening the first valve a predetermined distance while the second valve remains closed.
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