Self-checking speed governor arrangement

Details Self-checking speed governor arrangement Self-checking speed governor arrangement

1989-06-23

1991-04-02

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

415 16, F02C 928

Patent

active

050037692

ABSTRACT:
A simple rotary bobweight overspeed governor mechanism is conveniently incorporated in a main fuel control system for a gas turbine aeroengine in order to prevent overspeeds of one and more of its compressor/turbine rotating spools. In order to prevent so-called "dormant" failures of the overspeed governor mechanism going undetected, the invention provides automatic checking of governor function by means of a microswitch linked to a main digital electronic controller of the fuel control system. The position of a spindle in the governor mechanism is proportional to the speed of the spool from which it is driven and each time the spindle is at the position which should correspond to a predetermined proportion of the maximum allowable spool speed, the microswitch is actuated and signals the electronic controller. The latter already receivers a spool speed signal from a tachometer on the engine and if the microswitch signal oocurs at the predetermined proportion of maximum spool speed as measured by the tachometer, the electronic controller outputs a validation signal, otherwise it outputs a warning signal.

REFERENCES:
patent: 4528812 (1985-07-01), Cantwell
patent: 4712372 (1987-12-01), Dickey et al.
patent: 4837697 (1989-06-01), Eisa et al.

Affiliated with

Also associated with

Rating

Self-checking speed governor arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-checking speed governor arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-checking speed governor arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-319988