| 摘要 |
A friction device includes a clutch pack operable to connect and disconnect drive and driven members for transferring and interrupting torque therebetween. A piston is supported in the clutch housing and defines a first expandable chamber. The piston carries a control module responsive to pressure in the expandable chamber for controlling coolant flow through a dedicated coolant flow passage through the actuator piston that includes mist-forming outlets on the face of the actuator piston.
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