Fluid sprinkling – spraying – and diffusing – Reaction motor discharge nozzle – With addition of secondary fluid upstream of outlet
Patent
1982-04-07
1985-03-05
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Reaction motor discharge nozzle
With addition of secondary fluid upstream of outlet
23926525, 23926539, F02K 112, F02K 109, F02K 128
Patent
active
045026360
ABSTRACT:
An ejector nozzle for a turbomachine comprising fixed inner and outer ducts 16,19 to the downstream ends of which is provided a mechanism for varying the geometry and area of the nozzle. A plurality of pivotal flaps 20,20a are mounted on the inner duct 16 for rotation about their pivots. An axially movable shroud 25 is provided downstream of the outer duct 19. A plurality of second flaps 23,23a are pivotally attached to the first flaps 20,20a and slide relative to the shroud 25. The second flaps 23 have openings therein and doors 30 to close the openings. Links 31 which are connected to the shroud 25 are used to open and close the doors. Rotation of the flaps 20,20a and axial movement of the shroud 25 alters the geometry of the nozzle and can be used to open air inlet openings on the downstream side of the flaps 20,20a and also open the doors 30 in the second flaps 23,23 a to provide a mixer to reduce infra-red radiation emitted by the hot gas plume from the engine.
REFERENCES:
patent: 3493178 (1970-02-01), Bruner
patent: 4145877 (1979-03-01), Montgomery
Nightingale Douglas J.
Szuminski Gary F.
Kashnikow Andres
Rolls-Royce Inc.
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