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1. (WO1991008379) DUAL FLOW TURBINE ENGINE MUFFLER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/008379 International Application No.: PCT/US1990/006686
Publication Date: 13.06.1991 International Filing Date: 15.11.1990
Chapter 2 Demand Filed: 21.05.1991
IPC:
F01D 25/30 (2006.01) ,F02K 1/82 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
25
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
30
Exhaust heads, chambers, or the like
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
K
JET-PROPULSION PLANTS
1
Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
78
Other construction of jet pipes
82
Jet pipe walls, e.g. liners
Applicants:
ALLIED-SIGNAL INC. [US/US]; Law Department (C.A. McNally) P.O. Box 2245 R Morristown, NJ 07962-2245, US
Inventors:
ROSS, David, F.; US
ROYALTY, Charles, M.; US
Agent:
MASSUNG, Howard, G.; Allied-Signal Inc. Law Dept. (C.A. McNally) 101 Columbia Road P.O. Box 2245 Morristown, NJ 07962-2245, US
HOLDEN, Jerry, J.; Allied-Signal Inc. Law Department (C.A. McNally) P.O. Box 2245 Morristown, NJ 07962, US
Priority Data:
442,37828.11.1989US
Title (EN) DUAL FLOW TURBINE ENGINE MUFFLER
(FR) SILENCIEUX POUR REACTEUR A DOUBLE FLUX
Abstract:
(EN) An elongate exhaust gas muffler (10) for a turbine engine includes a foraminous central exhaust duct (12) which is circumscribed along its length by a plurality of tuned dissipative and reactive noise attenuation chambers (42-48). At an inlet end (16) of the muffler (10) an annular secondary flow inlet (32) is defined about the central exhaust duct and opens to the first sound attenuation chamber (42). A secondary flow of pressurized bleed air is receivable into the first attenuation chamber (42) in the muffler (10).
(FR) Un silencieux allongé (10) pour les gaz d'échappement d'un réacteur à turbine comporte un conduit d'échappement central à perforations (12) entouré longitudinalement par une pluralité de chambres de dissipation et d'atténuation du bruit du réacteur (42-48). A l'extrémité d'entrée (16) du silencieux (10) est disposée une entrée annulaire d'écoulement secondaire (31) qui est aménagée autour du conduit d'échappement central et débouche sur la première chambre d'atténuation sonore (42). Un deuxième écoulement d'air de prélèvement pressurisé peut passer dans la première chambre d'atténuation (42) du silencieux (10).
Designated States: CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0502924JPH05501743CA2072118