Drive arrangement for a vehicle

Details Drive arrangement for a vehicle Drive arrangement for a vehicle

1987-07-01

1989-03-28

Braun, Leslie A.

Machine element or mechanism

Gearing

Plural prime movers selectively coupled to common output

74675, 74677, 74687, F16H 3706, F16H 4704, F16H 4708

Patent

active

048153346

ABSTRACT:
The invention provides an improved form of drive arrangement for use in a motor vehicle comprising a first prime mover, a hydromechanical power branching transmission, driven by the prime mover, and having at least two hydromechanical transducers, by the inclusion of an emergency drive device which comprises a second prime mover adapted to act as a standby prime mover and an adjustable hydromechanical transducer arranged to be driven by the second prime mover. The second prime mover is adapted to supply hydraulic power via the adjustable hydromechanical transducer to the hydromechanical transducers of the power branching transmission and thence to a driven axle of the vehicle in the event of the first prime mover becoming inoperative, for example, if the first prime mover fails or (in the event of its being an electric motor) if its supply of energy breaks down.

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