Power transmission device

Details Power transmission device Power transmission device

1996-01-24

1998-03-31

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Automatic

192 37, 192 451, 192 47, 192 486, B60K 2308

Patent

active

057328072

ABSTRACT:
An automotive power transmission device which can change over the driving mode between two-wheel drive and four-wheel drive mode. The device when combined with a differential as an integral unit can be assembled easily. This device includes an axle made up of axially separated first and second portions, a differential coupled to one end of the first portion of the axle and having a differential cover, and a clutch device coupled to the other end of the first portion of the axle which is enclosed in the differential cover. The clutch includes an inner ring connected to the differential, an outer ring connected to a vehicle wheel and rotatably mounted around the inner ring, sprags and cages mounted between the inner and outer rings, a biasing member for biasing and rotating the cages relative to the inner ring, and a locking system for detachably coupling the cage and the outer ring together. While the transfer is set in the two-wheel drive mode, the outer ring is allowed to free-run. During the four-wheel drive mode, the rotation of the axle is transmitted to the wheels through the inner ring, sprags and outer ring.

REFERENCES:
patent: 2041445 (1936-05-01), Warren
patent: 2079527 (1937-05-01), Rauen
patent: 2403378 (1946-07-01), Kilpela
patent: 3123169 (1964-03-01), Young et al.
patent: 3300002 (1967-01-01), Roper
patent: 3437186 (1969-04-01), Roper
patent: 4212557 (1980-07-01), Overbeek
patent: 5103690 (1992-04-01), Macpherson et al.
patent: 5286239 (1994-02-01), Ito et al.
patent: 5355748 (1994-10-01), Ito et al.
patent: 5529158 (1996-06-01), Itoh et al.
patent: 5542514 (1996-08-01), Itoh et al.

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