Valves and valve actuation – Electrically actuated valve – Balanced valve
Patent
1994-09-02
1996-12-17
Solis, Erick R.
Valves and valve actuation
Electrically actuated valve
Balanced valve
25112917, 137100, 123527, F16K 3102
Patent
active
055844677
ABSTRACT:
A fluid flow control system which can function under a range of input pressures for regulating the flow of fluid as a function of a variable input voltage and having a feedback feature which produces an electrical signal equivalent to the volume of fluid actually flowing from the control system, comprising a pressure balanced valve, a proportional solenoid having a movable shaft responsive to the input voltage and adapted to open the valve, said valve including, a fluid intake chamber having an intake port and a valve port, a fluid discharge chamber having a discharge port, a valve disk and a cooperating valve seat where the valve disk is connected to the shaft of the proportional solenoid so as to open and close the valve, a flexible diaphragm having a centrally disposed piston in contact with the valve disk a pressure equalizing chamber contiguous to the diaphragm, a biasing spring in contact with the piston and exerting a force thereon in a direction toward the valve disk for normally maintaining the valve disk sealed against its valve seat, and a fluid flow measurement device disposed in the discharge port for measuring the fluid flowing from the fluid discharge chamber.
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Chasteen Ronald E.
Cornelison Terry L.
Harnett Sean O.
Echlin Inc.
Hanes Richard W.
Solis Erick R.
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