Power plants – Reaction motor – With thrust direction modifying means
Patent
1975-07-28
1977-01-04
Croyle, Carlton R.
Power plants
Reaction motor
With thrust direction modifying means
60266, 60271, 23926535, F02K 112, F02K 120, F02K 1104
Patent
active
040006123
ABSTRACT:
A thrust vectoring gas turbine engine exhaust nozzle is provided with a variable area flow path wherein cooling of the stationary flow path side walls is partially obtained by the film cooling technique. Regulating means, such as a valve, is provided to control the pressure drop of the cooling fluid across the walls as a function of nozzle flow path area, thus optimizing the coolant flow rate as a function of flow path area. Where a rotating bonnet-type deflector is employed to divert the exhaust stream downward to obtain a vertical take-off and landing capability, a system is provided to cool the deflector walls by both the impingement and convection cooling techniques. A favorable pressure gradient for the cooling fluid is obtained by exhausting the cooling fluid to ambient pressure whenever the deflector is deployed. Another valve is provided to regulate the flow of coolant to an expansion flap when the deflector is in its stowed position external to the flow path.
REFERENCES:
patent: 2831321 (1958-04-01), Laucher
patent: 3004385 (1961-10-01), Spears et al.
patent: 3046730 (1962-07-01), Petren
patent: 3091082 (1963-05-01), Newcomb et al.
patent: 3214905 (1965-11-01), Beavers et al.
Nash Dudley O.
Wakeman Thomas G.
Croyle Carlton R.
Garrett Robert E.
General Electric Company
Lampe, Jr. Robert C.
Lawrence Derek P.
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