Rotary solenoid actuator

Details Rotary solenoid actuator Rotary solenoid actuator

1981-08-27

1985-01-29

Rosenthal, Arnold

Valves and valve actuation

Permanent or constantly energized magnet actuator

251129, 251137, 335230, 335272, F16K 3108

Patent

active

044961340

ABSTRACT:
A rotary solenoid actuator for proportionally controlling the flow of fluid, such as air, in a pipe comprises a housing with a rotor rotatably mounted thereon. A stationary coreless coil for generating a magnetic field in response to a control current therethrough is mounted in the housing. A permanent magnet is affixed to a rotatably mounted shaft within the coil, and a return spring is attached to the rotating shaft. Due to low hysteresis in the coreless coil, there is a linear relationship between the control current and the fluid flow.

REFERENCES:
patent: 2405429 (1946-08-01), Jewell
patent: 2473939 (1949-06-01), Clark
patent: 2841779 (1958-07-01), Peterson, Jr.
patent: 2872154 (1959-02-01), Jones
patent: 3054426 (1962-09-01), Fritz et al.
patent: 3206160 (1965-09-01), Bennett
patent: 3323548 (1967-06-01), Lugwig
patent: 3861644 (1975-01-01), Knape
patent: 4135119 (1979-01-01), Brosens
Nishimiya et al., "Proportional Solenoid", Technical Report (Kokai Giho), vol. 3-5, No. 78-780, published May 20, 1978.

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