Modular sub-assembly for turbine engine fuel control systems

Details Modular sub-assembly for turbine engine fuel control systems Modular sub-assembly for turbine engine fuel control systems

1988-01-28

1989-04-04

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

F02C 928

Patent

active

048173762

ABSTRACT:
A modular control sub-assembly in a fuel control system for a turbine engine such as a jet engine, comprises a pressure drop detector constituted by a slide axially movable in a bore of a casing, and an overspeed limiter disposed coaxially in said casing at one end of the bore containing the detector slide. The slide is rotatably driven by the overspeed limiter through a fork coupling and, when the plant overspeed threshold is exceeded, the slide is moved axially by the overspeed limiter in the same direction as on detecting an increase in the pressure drop across a fuel flow feed regulator to reduce an output control pressure signal and thereby cause a control valve to open which reduces the fuel flow and hence the overspeed.

REFERENCES:
patent: 3173468 (1965-03-01), McCombs
patent: 3695038 (1972-10-01), Greiner
patent: 3726086 (1973-04-01), Herbstritt
patent: 3913317 (1975-10-01), Lewis
patent: 4337617 (1982-07-01), Smith
patent: 4738579 (1988-04-01), Agostino et al.

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