Pressure-activated flow-control valve

Details Pressure-activated flow-control valve Pressure-activated flow-control valve

1994-05-27

1995-10-24

Hepperle, Stephen M.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

137490, 137491, F16K 1710

Patent

active

054601983

ABSTRACT:
A valve assembly used in combination with a pressurized-fluid source having a high-pressure side and a low-pressure side and a load has a pressure-actuated flow regulating valve having a housing and a valve body movable in the housing and defining therein a pump compartment connectable to the high-pressure side of the source and a load compartment connectable to the load. The body is movable between a front position permitting free flow from the pump to the load compartment and a rear position limiting such flow. The valve body is formed with a throughgoing bypass passage having one end open into the load compartment and an opposite end. A spring braced between the valve body and the housing urges the valve body forwardly along an axis toward the load compartment. A relief valve in the housing connected to the opposite bypass passage end and to the low-pressure side of the source relieves pressure in the load compartment when pressure in the load compartment exceeds a predetermined limit.

REFERENCES:
patent: 2420394 (1947-05-01), Gilman
patent: 2496577 (1950-02-01), Cahill
patent: 2989066 (1961-06-01), Norlin
patent: 3587619 (1971-06-01), Krechel
patent: 3752174 (1973-08-01), Turolla
patent: 3757811 (1973-09-01), Broker
patent: 4171004 (1979-10-01), Cerrato et al.

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