Two-stage flow divider with pressure-relief valves in each stage

Details Two-stage flow divider with pressure-relief valves in each stage Two-stage flow divider with pressure-relief valves in each stage

1988-07-01

1989-09-19

Garrett, Robert E.

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

91532, B62D 508, F15B 1306

Patent

active

048669369

ABSTRACT:
A hydraulic flow divider has first and second flow control valves each dividing its inflow into two flows. The first flow control has a pressure relief valve and a constant orifice dividing flow to two outlets. The second flow control further divides one of these flows into a second set of two output flows. One of the output flows of the second flow control valve is directed to a power steering cylinder while secondary output flow of the second flow control valve joins flow from the other outlet of the first flow control. The arrangement secures adequate fluid supply to a priority load of the hydraulic system at low pump drive engine speeds.

REFERENCES:
patent: 3456560 (1969-07-01), Brannon
patent: 3811363 (1974-05-01), Cryder
patent: 4005636 (1977-02-01), Dunn
patent: 4034563 (1977-07-01), Orth
patent: 4070857 (1978-01-01), Wible
patent: 4070858 (1978-01-01), Hand
patent: 4154257 (1979-05-01), Adachi
patent: 4558631 (1985-12-01), Fassbender

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