Four wheel drive power train for vehicle

Details Four wheel drive power train for vehicle Four wheel drive power train for vehicle

1991-08-29

1993-03-16

Focarino, Margaret A.

Motor vehicles

Having four wheels driven

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

180247, B60K 17348

Patent

active

051936399

ABSTRACT:
A four wheel drive system for a vehicle comprises a transverse power unit, a first (front) differential unit, an angular drive unit for changing the direction of torque path, a propeller shaft, and a second (rear) differential assembly between left and right permanent drive (rear) wheels which are always connected with the power unit through the differential case of the first differential unit, the angular drive unit, the propeller shaft and the second differential assembly. The first differential unit is provided between left and right nonpermanent drive (front) wheels. One of the nonpermanent drive wheels is simply connected with one side gear of the first differential unit by an axle shaft. The other nonpermanent drive wheel is connected with the other side gear of the first differential unit through a coupling unit, such as an orifice coupling, which can vary a driving torque distribution between the front and rear wheels by varying a transmission torque therebetween.

REFERENCES:
patent: 4915190 (1990-04-01), Iwata
patent: 4919248 (1990-04-01), Hiramatsu et al.
patent: 4921085 (1990-05-01), Takemura et al.
patent: 4957473 (1990-09-01), Takemura et al.
patent: 4958711 (1990-09-01), Okubo et al.
patent: 5005663 (1991-04-01), Niide et al.
patent: 5064017 (1991-11-01), Kikuchi et al.
patent: 5105517 (1992-04-01), Barnow

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