EP 2798187 A4 20150819 - GAS TURBINE ENGINE WITH FAN VARIABLE AREA NOZZLE TO REDUCE FAN INSTABILITY
Title (en)
GAS TURBINE ENGINE WITH FAN VARIABLE AREA NOZZLE TO REDUCE FAN INSTABILITY
Title (de)
GASTURBINENMOTOR MIT LÜFTERDÜSE MIT VERÄNDERLICHEM BEREICH ZUR REDUZIERUNG DER LÜFTERINSTABILITÄT
Title (fr)
MOTEUR À TURBINE À GAZ ÉQUIPÉ D'UNE BUSE À SECTION VARIABLE POUR UN VENTILATEUR AFIN DE RÉDUIRE L'INSTABILITÉ DU VENTILATEUR
Publication
Application
Priority
- US 201113340787 A 20111230
- US 2012071937 W 20121228
Abstract (en)
[origin: WO2013141933A1] A nacelle assembly for a high-bypass gas turbine engine according to an exemplary aspect of the present disclosure includes a core nacelle defined about an engine centerline axis, a fan nacelle mounted at least partially around the core nacelle to define a fan bypass flow path for a fan bypass airflow, a fan variable area nozzle axially movable relative the fan nacelle to vary a fan nozzle exit area and adjust a fan pressure ratio of the fan bypass airflow during engine operation, and a controller operable to control the fan variable area nozzle to vary a fan nozzle exit area and adjust the pressure ratio of the fan bypass airflow.
IPC 8 full level
F02K 3/075 (2006.01)
CPC (source: EP)
F02K 1/06 (2013.01); F02K 1/08 (2013.01); F02K 1/15 (2013.01); F02K 3/06 (2013.01)
Citation (search report)
- [XI] EP 1967701 A2 20080910 - UNITED TECHNOLOGIES CORP [US]
- [XI] EP 2184480 A2 20100512 - ROLLS ROYCE PLC [GB]
- [XI] US 2011004388 A1 20110106 - WINTER MICHAEL [US]
- [XI] US 2010043393 A1 20100225 - ZAMORA SEAN P [US], et al
- [XI] US 2009053058 A1 20090226 - KOHLENBERG GREGORY A [US], et al
- [A] US 3747343 A 19730724 - ROSEN G
Citation (examination)
- US 2009226303 A1 20090910 - GRABOWSKI ZBIGNIEW M [US], et al
- WILLIAM S. WILLIS: "Quiet Clean Short-Haul Experimental Engine (QCSEE) Final Report", NASA CR-159473, 31 August 1979 (1979-08-31), pages 1 - 312, XP055305989, Retrieved from the Internet <URL:http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19800006861.pdf> [retrieved on 20160927]
- BRUCE E WENDUS ET AL: "Follow-On Technology Requirement Study for Advanced Subsonic Transport", NASA/CR-2003-212467, 1 August 2003 (2003-08-01), pages iii - 48, XP055358621, Retrieved from the Internet <URL:https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20030067946.pdf> [retrieved on 20170324]
- BANGALORE PHILIP R. GLIEBE ET AL: "Ultra-High Bypass Engine Aeroacoustic Study", NASA/CR-2003-212525, 1 October 2003 (2003-10-01), XP055277347, Retrieved from the Internet <URL:http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20040000741.pdf> [retrieved on 20160602]
- See also references of WO 2013141933A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013141933 A1 20130926; CN 104011362 A 20140827; CN 104011362 B 20171020; EP 2798187 A1 20141105; EP 2798187 A4 20150819; SG 11201403586Q A 20140730
DOCDB simple family (application)
US 2012071937 W 20121228; CN 201280065401 A 20121228; EP 12872220 A 20121228; SG 11201403586Q A 20121228