EP 1342955 A1 20030910 - Injection system for air-fuel mixture in a combustion chamber
Title (en)
Injection system for air-fuel mixture in a combustion chamber
Title (de)
Einspritzsystem für Luft/Brennstoff-Gemisch in einer Brennkammer
Title (fr)
Système d'injection d'un mélange air carburant dans une chambre de combustion
Publication
Application
Priority
FR 0202875 A 20020307
Abstract (en)
The system for injection of an air/fuel mixture into the combustion chamber of a gas turbine engine includes a fuel injectors which are specifically placed with regard to air injectors. The fuel injector positions ensure that the fuel is injected in a direction perpendicular to air flow. This allows various operating modes for use at different speeds. The system for injection of an air/fuel mixture into the combustion chamber of a gas turbine engine includes a fuel injector situated between first (22) and second (24) air injectors. This is placed in the internal cavity of a venture (26), and includes a first fuel admission circuit (32) and a second fuel admission circuit (34). These are independent and enable a number of different modes of injection of the fuel and air. At least one orifice of the first circuit is formed in a front wall (28) of the venture, in order to inject the fuel in a direction perpendicular to the flow of air from the first air injector. A further orifice (38) in the second circuit is formed in a wall upstream of the venture, in order to inject fuel in a direction perpendicular to the flow of air from the second air injector.
Abstract (fr)
Système d'injection (12) d'un mélange air/carburant dans une chambre de combustion d'un moteur à turbine à gaz, comportant des moyens d'injection de carburant interposés entre des premiers (22) et seconds moyens d'injection d'air (24), disposés dans une cavité interne d'un venturi (26), et comportant au moins un premier circuit d'admission de carburant (32), et une pluralité de seconds circuits d'admission de carburant (34) indépendants des premiers de façon à définir une pluralité de modes indépendants d'injection du mélange air/carburant, au moins un orifice (36) du premier circuit étant pratiqué dans une paroi amont (28) du venturi afin d'injecter du carburant selon une direction perpendiculaire à un flux d'air issu des premiers moyens d'injection d'air, et au moins un orifice (38) du second circuit étant pratiqué dans une paroi aval (30) du venturi afin d'injecter du carburant selon une direction perpendiculaire à un flux d'air issu des seconds moyens d'injection d'air. <IMAGE>
IPC 1-7
IPC 8 full level
F23R 3/04 (2006.01); F23R 3/14 (2006.01); F23R 3/28 (2006.01); F23R 3/30 (2006.01); F23R 3/34 (2006.01)
CPC (source: EP US)
F23R 3/14 (2013.01 - EP US); F23R 3/28 (2013.01 - EP US); F23R 3/343 (2013.01 - EP US)
Citation (search report)
- [A] US 6345505 B1 20020212 - GREEN JOHN WILLIAM [US]
- [A] US 6256995 B1 20010710 - SAMPATH PARTHASARATHY [CA], et al
- [AD] US 5816049 A 19981006 - JOSHI NARENDRA D [US]
- [AP] EP 1193449 A2 20020403 - GEN ELECTRIC [US]
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 1342955 A1 20030910; EP 1342955 B1 20080903; CA 2420313 A1 20030907; CA 2420313 C 20100504; DE 60323286 D1 20081016; ES 2312731 T3 20090301; FR 2836986 A1 20030912; FR 2836986 B1 20041119; JP 2003262337 A 20030919; JP 4188724 B2 20081126; RU 2303199 C2 20070720; UA 76427 C2 20060815; US 2004025508 A1 20040212; US 6799427 B2 20041005
DOCDB simple family (application)
EP 03290428 A 20030221; CA 2420313 A 20030303; DE 60323286 T 20030221; ES 03290428 T 20030221; FR 0202875 A 20020307; JP 2003055618 A 20030303; RU 2003106166 A 20030305; UA 2003032019 A 20030306; US 37991703 A 20030306