Locking disconnect clutch

摘要

A disconnect clutch includes a hub, a carrier, a wedge plate, a friction plate, a pressure plate, and a pin. The hub has a radially outer surface with a ramp and the carrier has a radially inner surface. The wedge plate is disposed radially between the hub and the carrier. It has a radially inner surface with a ramp, proximate and complementary to the hub outer surface, a radially outer surface proximate the carrier inner surface, and a split extending from the radially inner surface to the radially outer surface. The friction plate is drivingly connected to the carrier. The pressure plate is arranged for frictionally engaging the wedge plate with the at least one friction plate. The pin is rotationally fixed and radially or axially displaceable with respect to the hub, and arranged for limiting rotation of the at least one wedge plate relative to the hub.

主权项

1. A power transfer unit comprising:
a disconnect clutch comprising:
a hub comprising a radially outer surface with a ramp and a first radial slot;a carrier comprising a radially inner surface;a cam plate, rotationally displaceable relative to the hub and including a second slot with a radius that varies in a circumferential direction;at least one wedge plate disposed radially between the hub and the carrier, comprising:
a radially inner surface with a ramp, near and complementary to the hub outer surface;a radially outer surface near the carrier inner surface;a split extending from the radially inner surface to the radially outer surface; and,a third radial slot;at least one friction plate drivingly connected to the carrier;a pressure plate arranged for frictionally engaging the at least one wedge plate with the at least one friction plate;a pin disposed in the first radial slot and including an axial protrusion disposed in the second slot, the pin being:
arranged to radially engage the third radial slot;rotationally fixed and radially displaceable with respect to the hub;arranged for limiting rotation of the at least one wedge plate relative to the hub; and,arranged to be radially displaced when the cam plate rotates relative to the hub; a housing; a first piston disposed in the housing and arranged for axially displacing the pressure plate; and, a clamping plate, rotationally fixed relative the housing and arranged for frictional engagement with the cam plate.