Valves and valve actuation – Electrically actuated valve – Including solenoid
Patent
1995-09-28
1998-05-05
Lee, Kevin
Valves and valve actuation
Electrically actuated valve
Including solenoid
F16K 3106
Patent
active
057464120
ABSTRACT:
An electromagnetic valve device capable of reducing the number of assembled parts and manufacturing cost thereof includes a stable core arranged in a solenoid, a movable core slidable in the solenoid to form a magnetic gap with the stable core, a casing made of magnetic material and provided with a holder portion extending along the outer periphery of the solenoid and a yoke portion extending inside of the solenoid in sliding contact with the movable core, and a base made of synthetic resin unitedly molded with the casing and opposed to the movable core so as to form a valve member with the movable core. The yoke portion of the casing can sufficiently contact the movable core so as to allow the movable core to act as a valve with the base in association with a return spring for normally biasing the movable core toward the base. The casing and the base are unitedly molded to prevent positional deviations of the axial centers therebetween so that the base and the movable core can properly serve as a valve to open and close a fluid passage with less leakage therefrom.
REFERENCES:
patent: 4262877 (1981-04-01), Lang
patent: 5143301 (1992-09-01), Reiter et al.
Aisin Seiki Kabushiki Kaisha
Lee Kevin
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