Torque transmission device of a four-wheel drive vehicle

Details Torque transmission device of a four-wheel drive vehicle Torque transmission device of a four-wheel drive vehicle

1993-04-22

1995-02-14

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Automatic

192 483, 192 57, 192 85AA, 192103F, 74650, 180249, B60K 1735, F16D 2502

Patent

active

053886798

ABSTRACT:
A torque transmission device of a four-wheel drive vehicle having a pair of drive shafts includes a hydraulic pump for transmitting torque to both drive shafts through a variable oil pressure generated therein according to the difference in rotational speed between both drive shafts, and a multiple disc clutch for transmitting torque to both drive shafts by a frictional coupling power. The hydraulic pump has a casing and a rotor housed therein. The casing is rotated by one of the drive shafts. The rotor is rotated by the other drive shaft through a transmitting member, a hydraulic piston mechanism and a rotary sleeve. The transmitting member has a clutch operating portion for operating the clutch. When the transmitted torque exceeds a predetermined level, the hydraulic piston mechanism is adapted to move the transmitting member to operate the multiple disc clutch with no intermediary of the casing.

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