High speed electromagnetic valve

Details High speed electromagnetic valve High speed electromagnetic valve

1986-01-02

1987-07-07

Rosenthal, Arnold

Fluid handling

Processes

251 75, 25112916, 2511291, 25112906, 310328, F16K 3106

Patent

active

046780009

ABSTRACT:
A high speed electromagnetic valve is disclosed in which an electromagnetic actuator is provided in which an armature is moved relative to a stator having excitation coils, and a valve rod fixed to the armature and a holding means capable of holding the armature and the valve rod according to electric current. This holding means is formed in such way that a plurality of piezoelectric elements are sandwiched in a plurality of electrode plates, and holding power by the piezoelectric operation is generated to hold the armature and the valve rod.

REFERENCES:
patent: 3292019 (1966-12-01), Hsu et al.
patent: 3390559 (1968-07-01), Steutzer
patent: 3771760 (1973-11-01), Sheldon et al.
patent: 4165762 (1979-08-01), Alar
patent: 4492891 (1985-01-01), Wieters

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