Valves and valve actuation – Electrically actuated valve – Rotary electric actuator
Patent
1985-05-30
1987-03-17
Rosenthal, Arnold
Valves and valve actuation
Electrically actuated valve
Rotary electric actuator
251274, F16K 3104
Patent
active
046501568
ABSTRACT:
A sealed type motor-operated flow control valve comprises a valve body including two passages and a valve port connecting the two passages and formed with a valve seat, a valve member provided on the body so as to be movable between a closed position and an open position, a rotor having a rotating shaft one end of which is coupled to that end portion of the valve member more distant from the valve seat, the rotor being supported by the body so as to be rotatable in the circumferential direction of the shaft, a casing including a first half member hermetically coupled to the body and a second half member adjoining the first half member in a direction along the shaft of the rotor and hermetically coupled to the first half member, the respective inner surfaces of the first and second half members defining a sealed space to contain the rotor therein, a stator disposed in the casing and fixed to the first half member, a bracket disposed in the casing and fixed to the first half member, a bearing supported by the bracket and supporting the other end portion of the shaft of the rotor so as to be rotatable in the circumferential direction of the shaft, and a valve member drive mechanism for moving the valve member between the closed and open positions as the rotor rotates in one and the other directions.
REFERENCES:
patent: 2860266 (1958-11-01), Schrader
Fuji Koki Manufacturing Co., Ltd.
Rosenthal Arnold
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