Method of starting turbine engines

Details Method of starting turbine engines Method of starting turbine engines

1979-12-26

1982-09-21

Garrett, Robert E.

Power plants

Combustion products used as motive fluid

Different fluids

60 3928R, F02C 726

Patent

active

043500080

ABSTRACT:
A method of starting a gas turbine engine, particularly one having a high inertia rotor, in which the engine is cranked until sufficient air flow is available for lightoff, at which time fuel is injected at a fixed rate until ignition occurs, and fuel flow is then increased at a rate that is a function of rotor speed and ambient temperature. During the acceleration to operating speed, the turbine temperature is compared to a temperature reference that is based on rotor speed and ambient temperature and a lower fuel flow rate is selected, if necessary, to prevent overheating within the engine.

REFERENCES:
patent: 3520133 (1970-07-01), Loft et al.
patent: 3686859 (1972-08-01), White
patent: 3793825 (1974-02-01), Dickhart et al.
patent: 3793826 (1974-02-01), Holleboom et al.
patent: 3844111 (1974-10-01), Fenton
patent: 4044554 (1977-08-01), West
patent: 4274255 (1981-06-01), Pollak

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