Self-compensating solenoid valve

Details Self-compensating solenoid valve Self-compensating solenoid valve

1985-11-07

1987-07-21

Chambers, A. Michael

Fluid handling

Systems

Flow path with serial valves and/or closures

13761411, 25112915, 251175, F16K 3102

Patent

active

046811427

ABSTRACT:
Solenoid valve (10) has a valve chamber (18) within valve body (12). Inlet and outlet tubes (22) and (24) extend through plate (14) into the chamber (18). Movable core (32) in chamber (18) extends into solenoid coil (30). Distal end (38) of core (32) has a silicone rubber plug (40). Other than when solenoid (30) is energized, compressed spring (48) biases core (32) downward so that surface (44) of the plug (40) is in sealing engagement with ends (26) and (28) of the tubes (22) and (24). Any leak at ends (26) and (28) increases pressure in the chamber (18), resulting in increased sealing force of the plug (40) against the other end (26) or (28). Flow direction through the valve (20) is easily reversed by changing connections to the tubes (22) and (24).

REFERENCES:
patent: 77517 (1868-05-01), Moore et al.
patent: 504838 (1893-09-01), Jeannotte
patent: 2838068 (1958-06-01), Ray
patent: 2908290 (1959-10-01), Hamilton-Peters et al.
patent: 3082359 (1963-03-01), Mangiafico et al.
patent: 3262027 (1966-07-01), Zaleske et al.
patent: 4341241 (1982-07-01), Baker

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