Method and device for reversing the thrust of very high bypass r

Details Method and device for reversing the thrust of very high bypass r Method and device for reversing the thrust of very high bypass r

1999-03-04

2000-11-21

Freay, Charles G.

Power plants

Reaction motor

Method of operation

602262, 415123, 416169R, F02K 302

Patent

active

061486051

ABSTRACT:
A high bypass ratio turbojet engine comprising a fan rotated by the shaft of a low pressure turbine via a speed reducer is provided with a thrust reverser device by providing the speed reducer with first and second epicyclic gear trains which are mounted in parallel between the low pressure turbine and the fan and which are arranged in such a way as to drive the fan in a first direction of rotation when the engine is operated in a direct thrust mode, and to drive the fan in the opposite direction of rotation when the engine is to be operated in the reverse thrust mode.

REFERENCES:
patent: 3080774 (1963-03-01), Nickerson et al.
patent: 3116817 (1964-01-01), Quick et al.
patent: 3138972 (1964-06-01), Murgue et al.
patent: 3217564 (1965-11-01), Smith
patent: 3507113 (1970-04-01), Herrmann et al.
patent: 4005575 (1977-02-01), Scott et al.
patent: 4251987 (1981-02-01), Adamson

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