Control system for gas turbine engines providing extended engine

Details Control system for gas turbine engines providing extended engine Control system for gas turbine engines providing extended engine

1990-03-26

1991-09-17

Casaregola, Louis J.

Power plants

Reaction motor

Method of operation

60233, 60 3924, 36443102, F02C 900

Patent

active

050482858

ABSTRACT:
A control system for use in gas turbine engines simultaneously provides for improved engine efficiency and extended engine life without sacrificing engine performance. The control system is characterized by both standard and extended engine life (EEL) operating modes. The extended engine life (EEL) mode can be requested by the pilot during periods of less extreme flight maneuvers. The control system will, in response to pilot request, determine the current thrust provided by the engine and reconfigure the engine to provide that value of thrust at values of engine pressure ratio (EPR) as a function of engine airflow which produce a reduction in turbine inlet temperature.

REFERENCES:
patent: 4258545 (1981-03-01), Slater
patent: 4423594 (1984-01-01), Ellis
patent: 4425614 (1984-01-01), Barron et al.
patent: 4809500 (1989-03-01), Roberts
patent: 4959955 (1990-10-01), Patterson et al.

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