Turbomachine nozzle with noise reduction

Details Turbomachine nozzle with noise reduction Turbomachine nozzle with noise reduction

2005-08-30

2005-08-30

Tyler, Cheryl (Department: 3746)

Power plants

Reaction motor

Air passage bypasses combustion chamber

C060S770000, C060S263000, C239S127300, C181S213000

Reexamination Certificate

active

06935098

ABSTRACT:
A nozzle comprising an inner barrel, a centerbody disposed inside the inner barrel so as to define a first channel for a primary flow, and an outer barrel surrounding the inner barrel so as to define a second annular channel for a secondary flow, the free end of the inner barrel presenting a surface having a first series of undulations made up of negative undulations alternating with positive undulations, the centerbody presenting a second series of undulations made up of negative undulations alternating with positive undulations, the negative and positive undulations of the series of undulations being of radial height that varies angularly and being disposed in such a manner that the negative undulations of the first series are disposed facing negative undulations of the second series, and vice versa, so as to generate turbulence and radial shear between the primary and secondary flows while conserving a constant flow section around the entire circumference of the nozzle.

REFERENCES:
patent: 3153319 (1964-10-01), Geoffrey et al.
patent: 3192713 (1965-07-01), Baird
patent: 3455413 (1969-07-01), Henley
patent: 3578106 (1971-05-01), Ellis
patent: 3592291 (1971-07-01), Medawar et al.
patent: 3696617 (1972-10-01), Ellis
patent: 3710890 (1973-01-01), True et al.
patent: 3815360 (1974-06-01), Wellinitz
patent: 3934675 (1976-01-01), Lear
patent: 4045957 (1977-09-01), DiSabato
patent: 4052847 (1977-10-01), Rodgers et al.
patent: 4066214 (1978-01-01), Johnson
patent: 4077206 (1978-03-01), Ayyagari
patent: 4117671 (1978-10-01), Neal et al.
patent: 4240252 (1980-12-01), Sargisson et al.
patent: 4401269 (1983-08-01), Eiler
patent: 4543784 (1985-10-01), Kirker
patent: 4548034 (1985-10-01), Maguire
patent: 4576002 (1986-03-01), Mavrocostas
patent: 4592201 (1986-06-01), Dusa et al.
patent: 4696159 (1987-09-01), Horgan
patent: 4786016 (1988-11-01), Presz et al.
patent: 4819425 (1989-04-01), Farquhar et al.
patent: 5216879 (1993-06-01), Zysmaan
patent: 5638675 (1997-06-01), Zysman et al.
patent: 5755092 (1998-05-01), Dessale et al.
patent: 5775095 (1998-07-01), Zysman et al.
patent: 5924632 (1999-07-01), Seiner et al.
patent: 6012281 (2000-01-01), Hauser
patent: 6082635 (2000-07-01), Seiner et al.
patent: 6233920 (2001-05-01), Presz et al.
patent: 6276127 (2001-08-01), Alberti
patent: 6606854 (2003-08-01), Siefker et al.
patent: 6786038 (2004-09-01), Lair
patent: 6804948 (2004-10-01), Oishi
patent: 6854260 (2005-02-01), Anderson
patent: 1 084 419 (1955-01-01), None
patent: 2 529 956 (1984-01-01), None
patent: WO 00/40851 (2000-07-01), None
Search Report for FR 0306484, Feb. 16, 2004.

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