| 摘要 |
A torque transmitting device (10) for transmitting torque from a power source to a rotating driven load. The device (10) comprises a cylindrical assembly (12) adapted to be mechanically coupled via its outer circumference to the rotating driven load. The device (10) is provided with a port (18) at on its inner circumference and a rotor assembly (20) adapted to be mechanically coupled to the power source, and rotatably mounted within the cylindrical assembly (12) so as to form a fluid chamber (22) between the rotor assembly (20) and the inner circumference of the cylindrical assembly (12). The rotor assembly (20) comprises a plurality of pistons (26) at angularly spaced intervals, each piston (26) being movable between a retracted position and an extended position in which it extends into the fluid chamber (22). The device (10) also comprises a hydraulic fluid provided in the fluid chamber (22) whereby, in use, upon activation of the pistons (26) an hydraulic lock is formed between the rotor assembly (20) and the cylindrical assembly (12) to transmit torque from the rotor assembly (20) to the cylindrical assembly (12).
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