Patent ID: 6619457
Filing Date: 2003-09-16
Classification: F16D

Abstract:
A bi-directional clutch unit comprising:a housing assembly defining an oil sump; an input shaft rotatably supported by said housing assembly; an output shaft rotatably supported by said housing assembly; a clutch disposed between said input shaft and said output shaft, said clutch being selectively moveable between a disengaged condition where said input shaft is rotatable with respect to said output shaft and an engaged condition where said input shaft is drivingly connected to said output shaft; a first oil pump powered by said input shaft, said oil pump including a first port and a second port, said oil pump being operable to pump oil from said sump through said first port when said input shaft rotates in a first direction, said oil pump being operable to pump oil from said sump through said second port when said input shaft rotates in a second direction; a fluid outlet in fluid communication with said first and second ports; a bi-directional check valve moveable between a first position where only said first port communicates with said fluid outlet and a second position where only said second port communicates with said fluid outlet; and a second oil pump powered by said output shaft.