Turbomachine nozzle cover for reducing jet noise

Details Turbomachine nozzle cover for reducing jet noise Turbomachine nozzle cover for reducing jet noise

2008-07-01

2008-07-01

Kim, Ted (Department: 3746)

Power plants

Reaction motor

Air passage bypasses combustion chamber

C060S264000, C239S265170, C239S265190, C181S213000, C181S220000

Reexamination Certificate

active

11178476

ABSTRACT:
A cowl for a turbomachine nozzle, the cowl having a plurality of repeated patterns disposed circumferentially at a trailing edge, each pattern being asymmetrical about a midplane of the pattern containing a longitudinal axis of the cowl, and each pattern having a first portion inclined radially towards the inside of the cowl and a second portion inclined radially towards the outside of the cowl.

REFERENCES:
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patent: 4576002 (1986-03-01), Mavrocostas
patent: 6314721 (2001-11-01), Mathews et al.
patent: 6578355 (2003-06-01), Mundt
patent: 6606854 (2003-08-01), Siefker et al.
patent: 2002/0178711 (2002-12-01), Martens
patent: 0 984 152 (2000-03-01), None
European Search Report, French Appl. FR 0407792, Mar. 4, 2005.

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