Vehicle propelling apparatus

Details Vehicle propelling apparatus Vehicle propelling apparatus

1990-09-05

1992-06-02

Hill, Mitchell J.

Motor vehicles

Having four wheels driven

Including pump and fluid motor, or generator and electric...

91473, 91488, 180305, 180307, B60K 1710, B60K 17356

Patent

active

051179369

ABSTRACT:
A propelling apparatus for a vehicle switchable between a four wheel drive mode and a two wheel drive mode. The apparatus comprises a hydraulic pump for driving hydraulic motors associated with front wheels and rear wheels, respectively. A shutoff valve is provided on oil lines extending between the hydraulic pump and one of the hydraulic motors, e.g. the motor associated with the front wheels. The shutoff valve is operable to establish the two wheel drive mode for driving only the rear wheels. A pumping preventive device prevents the hydraulic motor associated with the front wheels from effecting pumping action due to power transmitted from the front wheels when the shutoff valve is operated.

REFERENCES:
patent: 3808949 (1974-05-01), Munche et al.
patent: 3899958 (1975-08-01), Spencer
patent: 3910162 (1975-10-01), Nonnenmacher
patent: 4903792 (1990-02-01), Ze-Ying
patent: 4945816 (1990-08-01), Mestieri

Affiliated with

Also associated with

Rating

Vehicle propelling apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vehicle propelling apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle propelling apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2223695