EP 0728989 B1 20011128 - Gas turbine engine combustor
Title (en)
Gas turbine engine combustor
Title (de)
Verbrennungsgerät für Gasturbinenmotor
Title (fr)
Appareil de combustion pour moteur de turbine à gaz
Publication
Application
Priority
- GB 9500627 A 19950113
- GB 9519826 A 19950929
Abstract (en)
[origin: EP0728989A2] A lean burn combustor for a gas turbine engine has a pilot burner (114) which injects fuel and air separately, the air being injected as a swirling column from a circular slot (302) in the burner head (214) to establish a divergent columnar shear layer (303) in the combustor, and the fuel being injected from a peripheral annular gap in the burner head towards the column of air (300) for mixing with it in the shear layer (303). A main burner (120,122) surrounds the pilot burner and by means of swirler passages (122) injects a fuel-lean main fuel/air mixture into the combustor towards the shear layer (303) for mixing with the pilot fuel and air. The shear layer establishes a sheltered combustion region (107) near the pilot burner and some fuel/air mixture (304) capable of stable combustion in the sheltered region is recirculated from the shear layer into the sheltered region to increase the stability of lean burn combustion in the combustor over a wide range of engine load conditions. <IMAGE>
IPC 1-7
IPC 8 full level
F02C 7/057 (2006.01); F23C 7/00 (2006.01); F23D 14/74 (2006.01); F23K 5/00 (2006.01); F23R 3/12 (2006.01); F23R 3/28 (2006.01)
CPC (source: EP)
F23C 7/002 (2013.01); F23D 14/74 (2013.01); F23R 3/286 (2013.01); F23C 2202/40 (2013.01); F23D 2204/00 (2013.01); F23D 2206/10 (2013.01); F23D 2207/00 (2013.01); F23D 2900/00016 (2013.01)
Designated contracting state (EPC)
CH DE FR GB LI SE
DOCDB simple family (publication)
EP 0728989 A2 19960828; EP 0728989 A3 19970820; EP 0728989 B1 20011128; DE 69617290 D1 20020110; DE 69617290 T2 20020613; JP H08240129 A 19960917
DOCDB simple family (application)
EP 96300281 A 19960115; DE 69617290 T 19960115; JP 2310896 A 19960116