Method of preventing instabilities produced by combustion in a t

Details Method of preventing instabilities produced by combustion in a t Method of preventing instabilities produced by combustion in a t

1996-03-27

1997-12-23

Freay, Charles G.

Power plants

Reaction motor

Method of operation

60261, 60 3906, B63H 1100

Patent

active

056996632

ABSTRACT:
A method of preventing instabilities due to combustion in a multi-flow turbojet engine including an afterburner into which an air-fuel mixture is injected in proportions measured in richness terms, which includes the steps of detecting experimentally, when tuning the turbojet engine, the zones of vibrations due to afterburn as a function of the operating conditions of the engine and as a function of the afterburn operating region, and selecting operating points for regulating the fuel richness of each flow to enable the detected vibration zones to be avoided.

REFERENCES:
patent: 2911788 (1959-11-01), Lewis et al.
patent: 2934891 (1960-05-01), Brown
patent: 3041826 (1962-07-01), Coar
patent: 3128598 (1964-04-01), Gordon
patent: 3402556 (1968-09-01), Lavash et al.
patent: 4095420 (1978-06-01), Abernethy et al.
patent: 4720971 (1988-01-01), Dubell
patent: 5320490 (1994-06-01), Corbin et al.

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