Hydraulic steering apparatus

Details Hydraulic steering apparatus Hydraulic steering apparatus

1975-01-13

1976-03-23

Wood, Jr., M. H.

Motor vehicles

Compensating devices

60468, 91400, B62D 506

Patent

active

039454576

ABSTRACT:
A hydraulic steering apparatus comprising a sump, a pair of motors controlling the vehicle parts to be steered, a steering wheel operated control device for controlling the motors, a continuously operable pump between the sump and control device, a pair of control conduits connected to the control device and meeting at a junction, a pair of stroke limiting control valves in the control conduits alternately actuable by the two motors, and an exhaust conduit from the junction to the sump. A short circuiting path shunting the pump, a pressure operated switching valve in the sort circuiting path, a pressure operated pilot valve for controlling the switching valve, a spur connection between the pilot valve and the exhaust conduit downstream from the spur connection to cause concomitant opening the pilot valve and the switching valve.

REFERENCES:
patent: 2728193 (1955-12-01), Bacchi
patent: 2810930 (1957-10-01), Macdonald
patent: 2827976 (1958-03-01), Brand
patent: 3566749 (1971-03-01), Allen

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