Gasturbinen-Abgasgeräuschdämpfung

Details

Veröffentlichungs-Nr.

EP2757241

Aktenzeichen

EP14151985

Anmeldetag

21. Januar 2014

Veröffentlichung

31. Juli 2019

Erteilung

31. Juli 2019

Rechtsraum

EP

IPC

F02K1/00F02K1/12F02K1/15F02K1/46

Abstract

A gas turbine jet noise reduction apparatus including a variable geometry gas turbine engine nozzle comprising a circumferentially distributed array of nozzle flap panels supported for alternate collective splaying and gathering motion, with the collective splaying motion of the flap panels being from a narrow position defining a minimum cross-sectional area at a nozzle exit plane, to a wide position defining a maximum cross-sectional area at the nozzle exit plane. A plurality of nozzle seal panels is supported in a circumferentially distributed array within the array of nozzle flap panels. A seal panel actuator is operatively engageable with the seal panels to deflect the seal panels radially inward into respective deployed positions to reduce jet noise by increasing exhaust stream mixing with ambient air.

Anmelder

Firma

Lockheed Martin Corporation

Land

🇺🇸 USA

Fachgebiete