Vehicle power steering electro-hydraulic safety backup system

Details Vehicle power steering electro-hydraulic safety backup system Vehicle power steering electro-hydraulic safety backup system

1976-03-18

1976-12-07

Peters, Joseph F.

Motor vehicles

Surface effect vehicles

Dynamic seal or fluid curtain

60405, B62D 506

Patent

active

039957110

ABSTRACT:
Disclosed is a vehicle power steering system including an electro-hydraulic safety backup system for supplying pressurized fluid to the steering motor of the vehicle when the pressure between the main pump and the power steering system drops below a predetermined pressure level. The safety backup system includes an electrical circuit which is added on to the ignition and starting circuits of a vehicle such that the backup system will not operate in response to intermittent short duration pressure drops. The electrical circuit includes an arming feature to prevent the backup system from operating during initial start-up of the vehicle and further provides for operation of the vehicle's starting motor to have priority over the backup system operation.

REFERENCES:
patent: 2836960 (1958-06-01), Wittren
patent: 3558239 (1971-01-01), Schiber
patent: 3820620 (1974-06-01), Miller
patent: 3923423 (1975-12-01), Lauck

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