Motor vehicles – Having four wheels driven – With differential means for driving two wheel sets at...
Patent
1991-06-17
1993-07-13
Mitchell, David M.
Motor vehicles
Having four wheels driven
With differential means for driving two wheel sets at...
180248, 180244, 192 8711, B60K 1735
Patent
active
052265030
ABSTRACT:
An arrangement for the operating of clutches of an all-wheel transmission line has two hydraulically operated clutches inserted in the transmission line of a motor vehicle. The first clutch is used as the separating clutch to a first vehicle axle; the second clutch is used as a locking clutch for the blocking of a lock system by which the second vehicle axle can be connected as a function of the rotational speed. The separating clutch can be closed against the force of a diaphragm spring by a first hydraulic piston with a second hydraulic piston, which is concentric with respect to the first hydraulic piston, the locking clutch can be opened against the force of a diaphragm spring.
REFERENCES:
patent: 3365985 (1968-01-01), Johnson
patent: 3384214 (1968-05-01), Wilson
patent: 4237749 (1980-12-01), Koivunen
patent: 4484654 (1984-11-01), Hayakawa
patent: 4862768 (1989-09-01), Iwatsuki et al.
Dr. Ing. h.c.F. Porsche AG
English Peter C.
Mitchell David M.
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