Motor vehicles – Having four wheels driven – With manually operated means for disengaging drive to one or...
Patent
1982-09-28
1984-11-27
Pekar, John A.
Motor vehicles
Having four wheels driven
With manually operated means for disengaging drive to one or...
180248, 74867, B60K 1734
Patent
active
044846541
ABSTRACT:
A torque transfer mechanism includes the output shaft of a power source to be connected to the rear axle, a first intermediate output shaft disposed concentrically with said output shaft, a second intermediate output shaft to be connected to the front axle, a power transmitting means for drivingly connecting said first and second intermediate output shafts, and a frictional coupling means interposed between said output shaft and said first intermediate output shaft. Said frictional coupling means comprises frictional members, a first cylinder, a first piston received in said first cylinder and adapted to apply a pressure to said frictional members, a second cylinder formed in said first piston, and a second piston received in said second cylinder. When the pressurized fluid is supplied only to said second cylinder, a slip between said output shaft and said first intermediate output shaft is allowed during the running of the vehicle along a curve to allow easy running operation of the vehicle.
REFERENCES:
patent: 4185723 (1980-01-01), Kelbel
patent: 4298085 (1981-11-01), Moroto et al.
patent: 4369671 (1983-01-01), Matsumoto
Aisin Warner Kabushiki Kaisha
Pekar John A.
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