Fluid control valve

Details Fluid control valve Fluid control valve

1974-07-24

1976-01-27

Schwadron, Martin P.

Valves and valve actuation

With correlated flow path

With mounting or support

251 30, 251 44, 335229, F16K 3102

Patent

active

039348164

ABSTRACT:
An electromagnetically operated fluid control valve having an armature mounted within the valve housing and a coil assembly mounted outside of the housing. Actuation of the coil assembly causes the armature to shift away from a valve port, thereby allowing fluid flow through the port. The armature is mounted on the housing by means of a torsion bar which permits fluid flow to be proportional to the input signal to the coil assembly and minimizes hysteresis. The coil assembly includes a permanent magnet and also a pair of pole pieces. Pole extensions are sealed in the housing wall in alignment with the pole pieces and adjacent to the armature. Thus, the coil assembly is not subject to corrosion or contamination from fluid passing through the valve.

REFERENCES:
patent: 2292477 (1942-08-01), Ray
patent: 2760509 (1956-08-01), Side
patent: 2774564 (1956-12-01), Biggle
patent: 2905871 (1959-09-01), Martin
patent: 3090592 (1963-05-01), Fleer
patent: 3140727 (1964-07-01), Cutler
patent: 3357676 (1967-12-01), Boonshaft
patent: 3366132 (1968-01-01), Fore
patent: 3457956 (1969-07-01), Andrews
patent: 3498308 (1970-03-01), Miller, Jr. et al.
patent: 3677826 (1972-07-01), Pointout et al.
patent: 3714610 (1973-01-01), Duff et al.
patent: 3794868 (1974-02-01), Haigh
patent: 3796229 (1974-03-01), Wright

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