Variable orifice valve

Details Variable orifice valve Variable orifice valve

1994-05-06

1996-04-02

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Piston type expansible chamber reciprocating valve actuator

138 45, 251 63, 251122, 405 52, F16K 31122, F16K 4700

Patent

active

055033636

ABSTRACT:
The Variable Orifice Valve is disclosed and the preferred embodiment of a hydraulically actuated device that permits the calibrated throttling of water used in an Aquifer Storage and Recovery (ASR). ASR is the storage of treated drinking water in an aquifer during periods of surplus water for recovery during peak demands. This device is installed below the static water level and at or near the bottom of the column pipe in the recharge well. The size of the orifice and the flow of water is varied by the axial adjustment of a hydraulic piston. The axial position of the piston is controlled by a hydraulic actuator competed through steel tubing to a hydraulic pump at the well head. The flow is monitored by using a flow meter and pressure gage in the hydraulic fluid passageway. The desired flow is set by adjusting the Variable Orifice Valve hydraulically while monitoring the flow. The operator may adjust the flow of water to any increment within the range of the valve.

REFERENCES:
patent: 2654395 (1953-10-01), Kaye
patent: 3220693 (1965-11-01), Dickson
patent: 3679169 (1972-07-01), Bedo et al.
patent: 3761053 (1973-09-01), Bedo et al.
patent: 4047695 (1977-09-01), Cleveland et al.
patent: 4114851 (1978-09-01), Shivak et al.
patent: 4280569 (1981-07-01), Mount, II
patent: 4377177 (1983-03-01), Claycomb

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