Modulating bypass variable cycle turbofan engine

Details Modulating bypass variable cycle turbofan engine Modulating bypass variable cycle turbofan engine

1976-05-03

1978-03-28

Garrett, Robert E.

Power plants

Reaction motor

Interrelated reaction motors

60262, 415 69, F02K 116, F02K 306

Patent

active

040807851

ABSTRACT:
A turbofan engine is provided with a core engine, a first fan and a second fan. First and second fan ducts are provided for bypassing a portion of the air flow leaving the fans around the core engine. One of these fan ducts has its inlet disposed downstream of the second fan, while the second duct has its inlet disposed between the first and second fan. Means are provided for varying the proportion of the flow of air among the fan ducts and core engine. Integrated, or separate coaxial nozzles are provided for receiving the flows from the individual fan ducts and core engine and exhausting these flows into the atmosphere.

REFERENCES:
patent: 3368352 (1968-02-01), Hewson
patent: 3449914 (1969-06-01), Brown
patent: 3468473 (1969-09-01), Davies et al.
patent: 3514952 (1970-06-01), Schumacher et al.
patent: 3841091 (1974-10-01), Sargisson et al.
patent: 3886737 (1975-06-01), Grieb
patent: 3915413 (1975-10-01), Sargisson
patent: 3937013 (1976-02-01), Aspinwall
patent: 3946554 (1976-03-01), Neumann

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