Electro-hydraulic regulating valve system

Details Electro-hydraulic regulating valve system Electro-hydraulic regulating valve system

1977-01-26

1979-01-09

Schwadron, Martin P.

Valves and valve actuation

With correlated flow path

With mounting or support

1374875, 13762565, 251215, F15B 13044, F16K 3102

Patent

active

041335112

ABSTRACT:
In the disclosed system a motor axially displaces a screw-threaded movable valve member by rotating it within an interiorly threaded collar. A sensor detects the movable valve member's axial position. An electrical feed-back circuit compares the sensor output with a reference value and drives the motor accordingly. In one embodiment the motor possesses a disc rotor and in another embodiment a moving coil rotor. In each case the stator links the rotor conductors which extend radially from the rotor center.

REFERENCES:
patent: 3756282 (1973-09-01), Knutson
patent: 3819292 (1974-06-01), Wentworth

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