Error detection means for an overspeed governor

Details Error detection means for an overspeed governor Error detection means for an overspeed governor

1987-10-05

1989-06-06

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

F02C 928

Patent

active

048359696

ABSTRACT:
In the fuel management system having an electronic computer (36) for operating a metering valve (50) through which fuel is supplied to operate a turbine engine (10). A mechanical governor (116) responsive to the rotation of a turbine by the combustion of fuel supplied to chamber (16) allows a portion of the fuel supplied to the metering valve (50) to return to a pump supply (30) when the rotational speed of the shaft (20) connected to turbine (18) exceeds a preset valve. An error detection member (440) responds to a mismatch between the force output of flyweight (130) and a speed feedback roller (408) to prevent the return of the entire quantity of fuel to the pump supply (28) and thereby assure a minimum quantity is always available to operate the turbine engine (10).

REFERENCES:
patent: 4578945 (1986-04-01), Peck et al.
patent: 4716723 (1988-01-01), Ralston et al.
patent: 4718229 (1988-01-01), Riley
patent: 4738579 (1988-04-01), D'Agostino et al.

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