Multi-disk friction device selective lubrication on demand

Details Multi-disk friction device selective lubrication on demand Multi-disk friction device selective lubrication on demand

2005-01-11

2005-01-11

Lorence, Richard M. (Department: 3681)

192 clutches and power-stop control

Clutches

Axially engaging

C192S085060, C192S10600R, C192S113350

Reexamination Certificate

active

06840363

ABSTRACT:
A friction device (10, 110) having a drive member (12, 112) and a driven member (14, 114) which define a clutch housing (16, 116) therebetween. A clutch pack (24, 124) is interposed between the drive and driven members and is operable to connect and disconnect the drive and driven members for transferring and interrupting torque therebetween. A control valve (74, 174) is supported in the clutch housing (16, 116) and is moveable between open and closed positions. The control valve (74, 174) is operable to control the flow of cooling fluid from the source to the clutch pack (24, 124). The friction device also includes an actuator (80, 180) that is operatively connected to either a piston assembly (40) or the clutch pack (124) and is adapted to engage the control valve (74, 174) such that movement of the piston assembly (40) from its disengaged position to its engaged position moves the control valve (74, 174) from its closed position to its open position to selectively allow flow of pressurized cooling fluid past the control valve (74, 174) and into contact with the clutch pack (24, 124) when the drive and driven members are connected.

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