Power transmission device for four wheel drive vehicle
This patent describes a power transmission device with an improved differential motion limiting mechanism for a four wheel drive vehicle having automatic transmission means, front wheel differential gear means, differential motion limiting means and transfer unit means including center differential gear means, comprising: a first gear mount casing having a gear adapted to mesh with an output of a transmission; a differential motion limiting device arranged together with a front wheel differential gear in the first gear mount casing. The front wheel differential gear having a first diff-carrier and the differential motion limiting device comprising a hydraulic friction clutch for engaging and disengaging the first gear mount casing with the first diff-carrier of the front wheel differential gear; a second gear mount casing disposed coaxially with respect to the first gear mount casing; and a transfer unit including a center differential gear arranged in the second gear mount casing, the center differential gear comprising a second diff-carrier coupled with the first gear mount casing, a first side gear coupled with the first diff-carrier of the front wheel differential gear, and a second side gear coupled with the second gear mount casing for transmitting power to the rear wheels.
- Assignee:
- Aisin-Warner Kabushiki Kaisha, Anjo
- Patent Number(s):
- US 4790211
- OSTI ID:
- 6232149
- Resource Relation:
- Patent File Date: Filed date 31 Dec 1986
- Country of Publication:
- United States
- Language:
- English
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Power transfer device for four-wheel drive vehicle
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