Servo valve

Details Servo valve Servo valve

Filed on

1991-05-13

Date issued

1992-09-29

Examiner

Hepperle, Stephen M.

Patent Class

Valves and valve actuation

SubClass

Fluid actuated or retarded

SubSubClass

Fluid and non-fluid actuators

Other Related Categories

137117, 25112903, F16K 1102, F16K 3116

Type

Patent

Status

active

Patent number

051508761

Description

ABSTRACT:
A servo valve comprises an electrical winding, an armature, flapper means fixed to the armature and a feedback arrangement including a radially extending plug fixed to an end of one of the arms of the flapper arrangement. The plug is located within the fluid flow of a supply bore and is deflected according to the flow. This deflection is passed back to the flapper to vary its position relative to the jet pipe nozzles thus offering feedback control.

REFERENCES:
patent: 3101650 (1963-08-01), Blanton
patent: 3563262 (1971-02-01), Wood
patent: 4157366 (1979-06-01), Ruth et al.
patent: 4226344 (1980-10-01), Booth et al.
patent: 4385642 (1983-05-01), Robinson

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