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1. EP2900957 - NACELLE ANTI-ICE VALVE UTILIZED AS COMPRESSOR STABILITY BLEED VALVE DURING STARTING

Office
European Patent Office
Application Number 13842277
Application Date 24.09.2013
Publication Number 2900957
Publication Date 05.08.2015
Publication Kind B1
IPC
F02C 7/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7Features, component parts, details or accessories, not provided for in, or of interest apart from, groups F02C1/-F02C6/158; Air intakes for jet-propulsion plants
04Air intakes for gas-turbine plants or jet-propulsion plants
F02K 3/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
KJET-PROPULSION PLANTS
3Plants including a gas turbine driving a compressor or a ducted fan
02in which part of the working fluid by-passes the turbine and combustion chamber
04the plant including ducted fans, i.e. fans with high volume, low-pressure outputs, for augmenting jet thrust, e.g. of double-flow type
06with front fan
CPC
F02C 7/047
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
04Air intakes for gas-turbine plants or jet-propulsion plants
047Heating to prevent icing
F02C 7/26
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
26Starting; Ignition
F02C 9/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
9Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
16Control of working fluid flow
18by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages
F05D 2270/101
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2270Control
01Purpose of the control system
10to cope with, or avoid, compressor flow instabilities
101Compressor surge or stall
B64D 15/04
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
15De-icing or preventing icing on exterior surfaces of aircraft
02by ducted hot gas or liquid
04Hot gas application
B64D 2033/0233
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
33Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
02of combustion air intakes
0233comprising de-icing means
Applicants UNITED TECHNOLOGIES CORP
Inventors MERCIER CLAUDE
COLLOPY GARY
Designated States
Priority Data 13731133 31.12.2012 US
201261706367 27.09.2012 US
Title
(DE) ALS KOMPRESSORSTABILITÄTS-ENTLÜFTUNGSVENTIL WÄHREND DES STARTENS VERWENDETES GONDELENTEISUNGSVENTIL
(EN) NACELLE ANTI-ICE VALVE UTILIZED AS COMPRESSOR STABILITY BLEED VALVE DURING STARTING
(FR) VANNE D'ANTIGIVRAGE DE NACELLE SERVANT DE VANNE DE PRÉLÈVEMENT DE STABILITÉ DE COMPRESSEUR PENDANT UN DÉMARRAGE
Abstract
(EN) A gas turbine engine has a compressor section received within an inner housing. An is an outer housing is spaced radially outwardly of the inner core housing. A nacelle has an anti-icing system which taps compressed air from the compressor section through an anti-ice valve and to the nacelle. The anti-ice valve is opened at startup of the gas turbine engine to assist compressor stability.
(FR) Selon la présente invention, un moteur de turbine à gaz possède une section compresseur accueillie dans un logement interne. Un logement externe est espacé de façon radiale vers l'extérieur du logement de cœur interne. Une nacelle possède un système d'antigivrage qui soutire de l'air comprimé de la section compresseur à travers une vanne d'antigivrage et en direction de la nacelle. La vanne d'antigivrage est ouverte au démarrage du moteur de turbine à gaz pour faciliter la stabilité du compresseur.
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