Valves and valve actuation – Electrically actuated valve – Rotary electric actuator
Patent
1985-02-21
1986-03-25
Scott, Samuel
Valves and valve actuation
Electrically actuated valve
Rotary electric actuator
239229, 25112912, 25112909, F16K 3102
Patent
active
045778329
ABSTRACT:
A rotary driving apparatus having a tubular casing in which a stator having a pair of circumferentially spaced pole portions and a rotor having a pair of radially spaced pole portions are arranged. One of the rotor and the stator is made of a permanent magnet. The apparatus has a coil for magnetizing the other one of the rotor and the stator. The rotor extends out of the inner periphery of the stator so that rotation of a limited angle of the rotor is allowed, the direction of which is changed in accordance with the direction of the electric current applied to the coil.
REFERENCES:
patent: 2718614 (1955-09-01), Gamble
patent: 3120943 (1964-02-01), Donelan
patent: 3175585 (1965-03-01), Faisandier
Kamen Noah
Nippondenso Co. Ltd.
Scott Samuel
Toyota Jidosha & Kabushiki Kaisha
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