Valves and valve actuation – Electrically actuated valve – Remote or follow-up control system for electrical actuator
Patent
1980-04-03
1982-07-13
Rosenthal, Arnold
Valves and valve actuation
Electrically actuated valve
Remote or follow-up control system for electrical actuator
251141, 335261, 335258, F16K 3106, H01F 708
Patent
active
043391095
ABSTRACT:
An electromagnetically operated valve unit includes a casing of magnetic material having inlet and outlet ports, a support shaft of non-magnetic material fixed in position within the casing and provided at its one end with an axial bore coaxial with the outlet port and an axial hole formed in the peripheral wall of the bore to provide fluid communication between the inlet and outlet ports, a plunger of magnetic material in the form of a sleeve member axially slidable on the support shaft and cooperating with the axial hole to open and close the fluid communication, a coil spring for biasing the plunger in one direction to normally close the axial hole, a tubular yoke of magnetic material surrounding the support shaft and facing at its inner circumference to the outer circumference of the plunger with a predetermined annular clearance, and a solenoid coil wound around the tubular yoke.
REFERENCES:
patent: 2853659 (1958-09-01), Herion
patent: 3285285 (1966-11-01), Bielefeld
patent: 3588039 (1971-06-01), Chelminski et al.
patent: 4193421 (1980-03-01), Sakakibara et al.
patent: 4216938 (1980-08-01), Inada et al.
patent: 4240468 (1980-12-01), Brand et al.
Kawata Shoji
Kuwana Kazutaka
Aisin Seiki Kabushiki Kaisha
Rosenthal Arnold
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