Method and apparatus for rapid thrust increases in a turbofan en

Details Method and apparatus for rapid thrust increases in a turbofan en Method and apparatus for rapid thrust increases in a turbofan en

1977-12-09

1980-01-22

Garrett, Robert E.

Power plants

Reaction motor

Condition responsive thrust varying means

60 3903, 60 3927, F02K 304, F02C 904, F02C 914

Patent

active

041843274

ABSTRACT:
Upon a landing approach, the normal compressor stator schedule of a fan speed controlled turbofan engine is temporarily varied to substantially close the stators to thereby increase the fuel flow and compressor speed in order to maintain fan speed and thrust. This running of the compressor at an off-design speed substantially reduces the time required to subsequently advance the engine speed to the takeoff thrust level by advancing the throttle and opening the compressor stators.

REFERENCES:
patent: 3797233 (1974-03-01), Webb et al.

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