Fluid sprinkling – spraying – and diffusing – Reaction motor discharge nozzle – With addition of secondary fluid upstream of outlet
Patent
1997-02-24
1999-06-01
Casaregola, Louis J.
Fluid sprinkling, spraying, and diffusing
Reaction motor discharge nozzle
With addition of secondary fluid upstream of outlet
60262, F02K 136
Patent
active
059081597
ABSTRACT:
An aircraft axisymmetric exhaust nozzle (36) is provided for reducing noise in an intermediate bypass ratio turbofan engine. The nozzle (36) includes a plurality of chute ejectors (38) placed equal distances about the circumference of a nozzle outer structure (46). A translatable centerbody (52) is located within the outer structure (46). The annular space between the outer structure (46) and the centerbody (52) defines a convergent-divergent exhaust duct (56). Each chute ejector (38) includes an inlet ramp (70) rotatably connected to the outer structure (46) along a ramp forward end (78). Each inlet ramp (70) moves between opposed stationary side panels (39) that extend inwardly from the outer structure interior surfaces (50). The side panels (39) are located in longitudinal planes and are triangular in shape. Nozzle aft flaps (114) are used to form the rearmost portions of the nozzle (36). During noise suppression, the inlet ramp (70) is rotated inwardly to allow ambient air (40) to enter the exhaust duct (56) at aspiration ratios of less than 40% of the engine exhaust. When noise suppression is not needed, the inlet ramp (70) is rotated outwardly to a position that is flush and pressure sealed with the outer structure exterior surface (48).
REFERENCES:
patent: 2803944 (1957-08-01), Kroon
patent: 2838909 (1958-06-01), Meulien
patent: 2938335 (1960-05-01), Cook, Jr.
patent: 2952124 (1960-09-01), Pearson
patent: 2997845 (1961-08-01), Oulianoff
patent: 3027714 (1962-04-01), Parker
patent: 3237864 (1966-03-01), Taylor et al.
patent: 3263931 (1966-08-01), Bartek et al.
patent: 3333772 (1967-08-01), Bruner
patent: 3346193 (1967-10-01), Tumicki
patent: 3352494 (1967-11-01), Colville et al.
patent: 3372876 (1968-03-01), Colville et al.
patent: 3409228 (1968-11-01), Mehr
patent: 3432100 (1969-03-01), Hardy et al.
patent: 3463402 (1969-08-01), Langston, Jr.
patent: 3524588 (1970-08-01), Duval
patent: 3550721 (1970-12-01), Bruner
patent: 3613826 (1971-10-01), Cabassut
patent: 3637041 (1972-01-01), Hilbig
patent: 3647020 (1972-03-01), MacDonald
patent: 3664455 (1972-05-01), Duvvuri
patent: 3695387 (1972-10-01), Hilbig
patent: 3710890 (1973-01-01), True et al.
patent: 3774868 (1973-11-01), Goetz
patent: 3829020 (1974-08-01), Stearns
patent: 3830431 (1974-08-01), Schwartz
patent: 3897169 (1975-07-01), Fowler
patent: 3910375 (1975-10-01), Hache et al.
patent: 3990530 (1976-11-01), Helfrich et al.
patent: 4064692 (1977-12-01), Johnson et al.
patent: 4074859 (1978-02-01), Lowman, Jr.
patent: 4095417 (1978-06-01), Banthin
patent: 4165609 (1979-08-01), Rudolph
patent: 4175640 (1979-11-01), Birch et al.
patent: 4215536 (1980-08-01), Rudolph
patent: 4422524 (1983-12-01), Osborn
patent: 4537026 (1985-08-01), Nightingale
patent: 4690329 (1987-09-01), Madden
patent: 4819876 (1989-04-01), Thayer
patent: 4909346 (1990-03-01), Torkelson
patent: 4958489 (1990-09-01), Simmons
patent: 5044553 (1991-09-01), Degress
patent: 5044559 (1991-09-01), Russell et al.
patent: 5154052 (1992-10-01), Giffin et al.
patent: 5216879 (1993-06-01), Zysmaan
patent: 5261229 (1993-11-01), Ford et al.
patent: 5291672 (1994-03-01), Brown
patent: 5343697 (1994-09-01), Johnson et al.
patent: 5351480 (1994-10-01), Kretschmer
"The Jet Engine," chapters 6, 14, 15 and 19, Rolls-Royce plc, 1992.
Casaregola Louis J.
The Boeing Company
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