Power transfer device for four-wheel drive
A power transfer device is described for four-wheel drive in combination with a power transmission, comprising: a first differential of the bevel gear type arranged to split the two driving torque from the power transmission into two torque delivery paths respectively for front-wheel drive and rear-wheel drive; a second differential of the bevel gear type arranged coaxially with the first differential at one side thereof to transfer the split driving torque from a first side gear of the first differential to one of front and rear-wheel axles; an output gear arranged coaxially with the first differential at the other side thereof to transfer the split driving torque from a second side gear of the first differential to the other of the rear and front-wheel axles; and a limited-slip differential assembled within a mounting case for the output gear to effect limited slip torque proportional to the difference in rotational speed between the side gears.
- Assignee:
- Toyota Jidosha Kabushiki Kaisha, Toyota
- Patent Number(s):
- US 4802383
- OSTI ID:
- 6002811
- Resource Relation:
- Patent File Date: Filed date 22 May 1987
- Country of Publication:
- United States
- Language:
- English
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Power transfer device for four-wheel drive