Valves and valve actuation – Permanent or constantly energized magnet actuator
Patent
1994-10-21
1996-12-17
Michalsky, Gerald A.
Valves and valve actuation
Permanent or constantly energized magnet actuator
335234, 25112915, F15B 13044, F16K 3108
Patent
active
055844669
ABSTRACT:
A self-holding type solenoid valve has an exciting coil 1 and an exciting circuit that switches the direction of flow of exciting current passing through the coil. When a positive exciting current flows through the coil, a movable iron core is attracted to a stationary iron core and held in the attracted position by a self-contained permanent magnet. When a reversed current flows through the coil, a return spring releases the movable iron core away from the stationary iron core.
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Azuma Shinichi
Fukano Yoshihiro
Nishibe Atsushi
Michalsky Gerald A.
SMC Corporation
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