Steering system including accumulator for supplying emergency re

Details Steering system including accumulator for supplying emergency re Steering system including accumulator for supplying emergency re

1980-11-24

1982-04-27

Nilson, Robert G.

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

60328, 60404, 91 28, 137113, 180133, 251 54, 251 634, 251297, B62D 508

Patent

active

043265588

ABSTRACT:
A hydraulic fluid power system includes an accumulator which stores a reserve of pressure fluid at pump standby pressure. The charging and discharging of the accumulator is controlled by an emergency steering valve which is operable in response to a predetermined minimum fluid pressure outputted by the steering pump to discharge the stored fluid for emergency steering. The emergency steering valve also has components which serve as a pressure switch which is actuated to complete a circuit through an indicator light whenever the emergency steering valve moves to effect the discharge of the accumulator. The steering valve components are arranged so that premature actuation of the indicator light during pressure drops of short duration are avoided.

REFERENCES:
patent: 3174500 (1965-03-01), Johnson
patent: 3227172 (1966-01-01), Sims
patent: 3448756 (1969-06-01), Nordegren
patent: 4160490 (1979-07-01), Bexten
patent: 4242867 (1981-01-01), Belart

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