Valves and valve actuation – Electrically actuated valve – Solenoid having plural coils
Patent
1986-05-14
1988-09-13
Rosenthal, Arnold
Valves and valve actuation
Electrically actuated valve
Solenoid having plural coils
251 65, 25112904, F16K 3106
Patent
active
047703890
ABSTRACT:
The present invention relates to an electric valve device used in subsea applications. It comprises a valve body with a centrally placed slidable valve core. The core has an aperture for fluid passage and may be held in position by 2 permanent magnets in the valve body. Windings are placed in the valve body so that they encircle the slidable core. To move the core, a DC current source is attached to the windings so that when they are energized a force is generated to move the core in a specific direction. The core is then held in this position by the contact between the magnets in the valve body and the valve core until the polarity of the windings is switched and the valve is moved in the opposite direction.
REFERENCES:
patent: 1475129 (1923-11-01), Mayer
patent: 3203447 (1965-08-01), Bremner et al.
patent: 3332045 (1967-07-01), Rodaway
patent: 3368788 (1968-02-01), Padula
patent: 3379214 (1968-04-01), Weinberg
patent: 4065096 (1977-12-01), Frantz et al.
Bodine James A.
Kuehn Judson S.
Silcox William H.
Chevron Research Company
Keeling E. J.
LaPaglia S. R.
Norviel V. A.
Rosenthal Arnold
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