Multi-wheel drive system

Details Multi-wheel drive system Multi-wheel drive system

1984-03-02

1986-02-18

Camby, John J.

Motor vehicles

Having four wheels driven

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

180 655, 180308, B60K 17356, B60K 100, B60K 700

Patent

active

045707413

ABSTRACT:
A selectable multi-wheel drive system for a mining machine has an electrical motor directly driving a wheel and driving a hydraulic pump through a clutching mechanism. Another wheel is connected to be driven by a hydraulic motor connected through a hydraulic circuit to be driven by the hydraulic pump. The hydraulic pump is selectively connected to the hydraulic motor so that one wheel or both wheels may be driven. The hydraulic circuit is controlled so that when in a one wheel drive condition the hydraulic motor is placed in a free-wheeling mode and no losses occur in the hydraulic circuit because of connection to the wheel.

REFERENCES:
patent: 3811525 (1974-05-01), Stuart
patent: 4133403 (1979-01-01), Priddy, Jr.

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