Auxiliary drive system

Details Auxiliary drive system Auxiliary drive system

1977-06-07

1979-02-20

Peters, Jr., Joseph F.

Motor vehicles

Steam traction engines

Spring mounted on axle

56 109, 60484, B60K 2504

Patent

active

041401964

ABSTRACT:
A system providing auxiliary power to the non-driving steerable wheels of a four-wheel vehicle utilizing hydraulic power in a parallel circuit from the existing hydrostatic drive system. The steerable wheels are driven by hydraulic motors connected in parallel through a flow divider valve and supplied by the variable displacement pump of the existing drive system through a selector valve which has a free-wheeling position allowing the steering wheels to free-wheel with the return oil from each motor flowing in a closed loop back through the flow divider valve while providing charging pressure to that closed loop circuit.

REFERENCES:
patent: B432969 (1976-03-01), Campbell et al.
patent: 3736732 (1973-06-01), Jennings et al.
patent: 4072009 (1978-02-01), Daschievici et al.

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