| 摘要 |
A throttle actuator for a vehicle having a source of compressed air. A power wall having a constant pressure applied to one side and means for applying or dumping pressure from the other side. A rod extending from the power wall through seals to a chain which is coupled to a throttle arm. The power wall return spring and the throttle arm return spring respectively return the power wall and throttle arm to the closed throttle position. Said throttle actuator comprising solenoid operated valves which control movement of said power wall upon demand by storing or dumping compressed air from one side of said power wall.
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