Power plants – Reaction motor – Interrelated reaction motors
Patent
1976-01-22
1977-10-11
Croyle, Carlton R.
Power plants
Reaction motor
Interrelated reaction motors
60244, 415153A, 137862, 13762544, 137875, F02K 306
Patent
active
040528456
ABSTRACT:
A variable ratio bypass turbojet engine comprising a front fan core engine and a forward fan connected thereto by an inverter valve arrangement which comprises a fixed forward duct system and a fixed after duct system selectively shaped and joined by flapper valve mechanism. The flapper valve mechanism may be actuated so that the bypass ratio of the engine can be varied to produce a low bypass ratio engine during cruise operation mode wherein the front fan air is conducted to the core engine fan and the auxiliary inlet air is discharged overboard, or to a high bypass ratio engine for take-off condition mode wherein the front fan air is discharged to atmosphere through a thrust nozzle and the auxiliary inlet air is directed to the core engine fan.
REFERENCES:
patent: 760633 (1904-05-01), Kurzwernhart
patent: 1169448 (1916-01-01), Williams
patent: 1405900 (1922-02-01), Cassalette
patent: 2225071 (1940-12-01), Meyerhoofer
patent: 3255585 (1966-06-01), Grieb
patent: 3331394 (1967-07-01), Hefler et al.
patent: 3769797 (1973-11-01), Stevens
patent: 3879941 (1975-04-01), Sargisson
patent: 3913321 (1975-10-01), Snell
patent: 3938328 (1976-02-01), Klees
Croyle Carlton R.
Garrett Robert E.
Hauschild Vernon F.
United Technologies Corporation
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