Self-holding type solenoid valves

Details Self-holding type solenoid valves Self-holding type solenoid valves

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.

REFERENCES:
patent: 3368788 (1968-02-01), Padula
patent: 3379214 (1968-04-01), Weinberg
patent: 3458769 (1969-07-01), Stampfli
patent: 3683239 (1972-08-01), Sturman
patent: 3821967 (1974-07-01), Sturman et al.
patent: 4056255 (1977-11-01), Lace
patent: 4403765 (1983-09-01), Fisher
patent: 4720078 (1988-01-01), Nakamura et al.
patent: 4758811 (1988-07-01), Slavin et al.
patent: 5127625 (1992-07-01), Kleinhappl
patent: 5259416 (1993-11-01), Kunz et al.

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