| 摘要 |
An engine brake rocker arm assembly 12 operable in a combustion engine mode and an engine braking mode, the engine brake rocker arm assembly 12 selectively opening first and second exhaust valves 30 and comprising: a rocker shaft16, an exhaust rocker arm 14 that receives the rocker shaft and is configured to rotate around the rocker shaft; an actuator assembly 40 having an engine brake actuator 26, an actuator lever 42, an actuator piston and an actuator spring; and a latch pin assembly 50 that cooperates with the actuator assembly. Wherein in a combustion engine mode the actuator piston and the actuator lever are in a retracted position (shown as a solid line in fig 1) such that the first and second exhaust valves move contemporary, and when in an engine braking mode, the actuator piston and the actuator lever are in a forward position (shown as a dotted line in fig 1) such that the latch pin assembly locks the engine brake actuator. |
