Throttle valve for use in a gas turbine engine fuel control syst

Details Throttle valve for use in a gas turbine engine fuel control syst Throttle valve for use in a gas turbine engine fuel control syst

1976-02-17

1979-05-15

Schwadron, Martin P.

Valves and valve actuation

With correlated flow path

With mounting or support

74661, 74665A, 74665B, 251248, F16k 3104

Patent

active

041544250

ABSTRACT:
A throttle valve has a control member which is angularly positioned by two stepper motors which drive the control member through differential gearing. The drives to the control member are arranged so that a single step displacement of the respective motors in the same direction drives the control member by different amounts in opposite directions, providing a high resolution drive. The control member may be driven at a high speed by reversing one of the motors.

REFERENCES:
patent: 1776444 (1930-09-01), McBane et al.
patent: 2059151 (1936-10-01), Smith, Jr.
patent: 2978536 (1961-04-01), Doran
patent: 3488030 (1970-01-01), Hulme et al.
patent: 3548671 (1970-12-01), Mueller
patent: 3608391 (1971-09-01), Bargstedt et al.
patent: 3709059 (1973-01-01), Elsel
patent: 3726150 (1973-04-01), Ikeda

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