Patent ID: 6543597
Filing Date: 2003-04-08
Classification: F16D

Abstract:
A clutch device for an automatic transmission comprising:an input member having an input hub portion and an input drum portion which together establish an annular space; a first output member having a first output drum portion extending in an axial direction in the annular space; a second output member having a second output drum portion disposed between the input drum portion and the first output drum portion and extending in the axial direction in the annular space; a first clutch mechanism for effecting engagement and disengagement between the input hub portion and the first output drum portion; a second clutch mechanism for effecting engagement and disengagement between the input drum portion and the second output drum portion; a first piston movable along an inner surface of the first output drum portion for effecting operation of the first clutch mechanism; a movable second piston guided by an inner surface of the input drum portion and an outer surface of the input hub portion for effecting operation of the second clutch mechanism; and the first and second pistons moving in opposite directions to effect engagement of the first and second clutch mechanisms, respectively.