EP 0414863 B1 19940727 - NOISE ATTENUATING SUPERSONIC NOZZLE.
Title (en)
NOISE ATTENUATING SUPERSONIC NOZZLE.
Title (de)
ÜBERSCHALLDÜSE MIT REDUZIERTEM GERÄUSCH.
Title (fr)
TUYERE SUPERSONIQUE ATTENUANT LE BRUIT.
Publication
Application
Priority
- US 9000688 W 19900207
- US 30817389 A 19890208
Abstract (en)
[origin: WO9009243A1] A sound attenuating supersonic nozzle (1) has an exit (9) to throat (8) ratio in the range of 2.5 to 6.0, with longitudinal grooves (17) formed in the interior wall of the supersonic passageway (6) of the nozzle body (2). A shield is disposed about the exterior surface of the nozzle body, forming an exit cavity and an exit opening, and has gill cavity through which auxiliary air flows into the exit cavity and mixes with the supersonic flow.
IPC 1-7
IPC 8 full level
B05B 1/00 (2006.01); B05B 1/04 (2006.01); B05B 1/06 (2006.01); B24C 1/00 (2006.01); B24C 5/04 (2006.01)
CPC (source: EP US)
B05B 1/002 (2018.07 - EP US); B24C 1/003 (2013.01 - EP); B24C 5/04 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9009243 A1 19900823; AT E109030 T1 19940815; DE 69011014 D1 19940901; DE 69011014 T2 19950323; EP 0414863 A1 19910306; EP 0414863 B1 19940727; JP H03504824 A 19911024
DOCDB simple family (application)
US 9000688 W 19900207; AT 90904011 T 19900207; DE 69011014 T 19900207; EP 90904011 A 19900207; JP 50402290 A 19900207