Solenoid-controlled valve

Details Solenoid-controlled valve Solenoid-controlled valve

1984-12-28

1986-10-28

Focarino, Margaret A.

Fluid handling

Systems

Sequentially closing and opening alternately seating flow...

13759617, F16K 3102

Patent

active

046192891

ABSTRACT:
A solenoid-controlled valve of the present invention is provided with a valve housing having first, second and third ports, first and second movable members housed in the valve housing to freely move along its longitudinal axis and is made of magnetic material, and a magnetic circuit for magnetically attracting the first and second movable members independently in order to move them in the direction of the axis. The magnetic circuit includes a solenoid, a magnetic flux by-pass for by passing the second movable member, and a magnetic resistance attached to that portion of the magnetic circuit which is by-passed by the magnetic flux by-pass. The solenoid-controlled valve further has first and second valve members, which are actuated by the movement of the first and second movable members in the direction of the axis to independently open and close the first and second ports.

REFERENCES:
patent: 1193036 (1916-08-01), McElroy
patent: 3040775 (1962-06-01), Ray
patent: 3853269 (1974-12-01), Graber
patent: 3970111 (1976-07-01), Brune et al.
patent: 3989063 (1976-11-01), Brouwers et al.
patent: 4086889 (1978-05-01), Yagi et al.

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