Drive assembly for a four wheel drive vehicle, having a disconne

Details Drive assembly for a four wheel drive vehicle, having a disconne Drive assembly for a four wheel drive vehicle, having a disconne

1992-12-22

1994-05-24

Hill, Mitchell J.

Motor vehicles

Having four wheels driven

With differential means for driving two wheel sets at...

180249, 192 35, 192 488, 192 4892, 192 58B, B60K 17346

Patent

active

053140397

ABSTRACT:
A drive assembly for a four wheel drive vehicle, which drive assembly, during forward driving, automatically assumes a freewheeling position if the speed of the dependent wheel axle is higher than that of the permanently driven axle, with the four wheel drive function otherwise being maintained with a reduced driving torque, even during reversing, the drive assembly providing the freewheeling unit with a second viscous coupling which is connected in parallel and whose torque transmitting capacity is smaller than, or equal to, that of the first viscous coupling.

REFERENCES:
patent: 4848507 (1989-07-01), Masuda et al.
patent: 4966265 (1990-10-01), Wiese et al.
patent: 4982808 (1991-01-01), Taureg et al.
patent: 5056640 (1991-10-01), Yamamoto
patent: 5174408 (1992-12-01), Hock

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