Valves and valve actuation – Electrically actuated valve – Including solenoid
Patent
1985-07-11
1987-12-22
Chambers, A. Michael
Valves and valve actuation
Electrically actuated valve
Including solenoid
25112907, 2513352, 137375, 604249, F16K 3104
Patent
active
047142340
ABSTRACT:
An electromagnetic valve comprising a housing having fluid containing region and first and second ports in communication therewith, an electromagnet carried by the housing located external to the region, and a thin fluid impermeable diaphragm barrier hermetically isolating the electromagnet from the region. An armature in the housing is movable within a body of magnetically permeable material and has a pole portion located for magnetic attraction by the electromagnet and has a valve portion located for opening and closing one of the ports to place the ports in fluid communication through the region in one state of the valve and to block fluid communication between the ports in another state of the valve. The armature is moved from a rest position through a forward stroke when attracted by the electromagnet and is returned by a biasing spring to the rest position. A magnetic circuit includes the electromagnet, a portion of the barrier, the body, the armature pole portion and a gap between the pole portion and the electromagnet located in the fluid containing region of the housing which gap is closed during forward movement of the armature. The valve is made electrically and magnetically efficient by minimizing the total gap within the magnetic circuit, by having the armature pole face area relatively large, and by having the electromagnet coil or core of relatively small diameter.
REFERENCES:
patent: 2548239 (1951-04-01), Ray
patent: 2820604 (1958-01-01), Ray
patent: 2925985 (1960-02-01), MacDavid
patent: 3235223 (1966-02-01), Wintriss
patent: 3424429 (1969-01-01), Monnich
patent: 3531080 (1970-09-01), Dillon
patent: 3750698 (1973-08-01), Walchle et al.
patent: 3937242 (1976-02-01), Echert
patent: 3942759 (1976-03-01), Passera
patent: 3948284 (1976-04-01), Walworth
patent: 4102526 (1978-07-01), Hargraves
patent: 4218669 (1980-08-01), Hitchcock et al.
patent: 4262877 (1981-04-01), Lang
patent: 4399834 (1983-08-01), Baumann
Falk Theodore J.
Morris Lawrence E.
Chambers A. Michael
Fox John C.
Greatbatch Enterprises, Inc.
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