Surge detector for gas turbine engines

Details Surge detector for gas turbine engines Surge detector for gas turbine engines

1977-01-26

1979-02-06

Garrett, Robert E.

Power plants

Reaction motor

With destruction sensing and preventing means

60 3928R, F02C 722

Patent

active

041377109

ABSTRACT:
Sensed engine inlet temperature is utilized to detect compressor surge whenever its computed temperature rate of change or rise signal exceeds a predetermined value. This signal may be coupled to another engine operating parameter, such as rotor speed, compressor discharge pressure and the like and permutations thereof, to guard against false detection. Engine inlet temperature rate of change or rise is an efficacious surge detection parameter particularly when an afterburner is used inasmuch as the hot gases of the afterburner will have a significant influence on the engine inlet temperature sensor in a reverse flow situation making that signal a positive indication of imminent surge.

REFERENCES:
patent: 3128603 (1964-04-01), Haigh
patent: 3526384 (1970-09-01), Alberani
patent: 3688504 (1972-09-01), Hutchinson
patent: 3739250 (1973-06-01), Beadman
patent: 3830055 (1974-08-01), Erlund
patent: 3852958 (1974-12-01), Adams
patent: 3867717 (1975-02-01), Moehring
patent: 3902315 (1975-09-01), Martin
patent: 3911285 (1975-10-01), Yannone et al.
patent: 4060980 (1977-12-01), Elsaesser

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