Safety valve for hydraulic receiver and hydraulic circuit compri

Details Safety valve for hydraulic receiver and hydraulic circuit compri Safety valve for hydraulic receiver and hydraulic circuit compri

1989-02-15

1990-06-26

Nilson, Robert G.

Fluid handling

Systems

Dividing into parallel flow paths with recombining

91445, F15B 1304

Patent

active

049360329

ABSTRACT:
Safety valve for a hydraulic circuit supplying a hydraulic receiver having an inlet and an outlet connected to the receiver which includes between the inlet and the outlet a non-return module which has a non-return valve and a selectively operable valve having an unoperated position in which the non-return valve prevents any reverse flow of fluid from the outlet to the inlet and an operated position in which such reverse flow is made possible. A control inlet is provided for applying control pressure to the selectively operable valve. A pressure relief valve is provided between the outlet and the control inlet which is adapted to enable flow from the outlet to the control inlet from a predetermined pressure threshold.

REFERENCES:
patent: 4244275 (1981-01-01), Smilges
patent: 4655039 (1987-04-01), McCabe

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