EP 0554325 B1 19950726 - GASTURBINE COMBUSTION CHAMBER AND METHOD OF OPERATION THEREOF.
Title (en)
GASTURBINE COMBUSTION CHAMBER AND METHOD OF OPERATION THEREOF.
Title (de)
GASTURBINENBRENNKAMMER UND DEREN ARBEITSWEISE.
Title (fr)
CHAMBRE DE COMBUSTION POUR MOTEUR A TURBINE A GAZ ET MODE DE FONCTIONNEMENT DE LADITE CHAMBRE.
Publication
Application
Priority
- GB 9101658 W 19910926
- GB 9118945 A 19910905
- GB 9023004 A 19901023
Abstract (en)
[origin: WO9207221A1] A gas turbine engine combustion chamber (36) which has staged combustion to reduce nitrous oxides comprises a first radial flow swirler (70) and a second radial flow swirler (74) which supply primary air into a first fuel and air mixing zone (64). A pilot injector (86) only supplies fuel to be burnt into the mixing zone (64) at low power levels. At high power levels primary fuel injectors (88) inject fuel into the passages (72, 80) formed between the vanes (70, 74) of the first and second swirlers so that fuel and air mixture flows into the first fuel and air mixing zone (64) to be burnt. Simultaneously secondary fuel injectors (104) inject fuel into an annular secondary fuel and air mixing zone (94) which surrounds the first mixing zone (64). Fuel and air from the second mixing zone (94) flow through apertures (106) into the combustion chamber (36) downstream of the first mixing zone (64) and the additional fuel is burnt in the zone (112).
IPC 1-7
IPC 8 full level
F02C 9/28 (2006.01); F23C 6/04 (2006.01); F23R 3/14 (2006.01); F23R 3/34 (2006.01)
CPC (source: EP)
F23C 6/047 (2013.01); F23R 3/14 (2013.01); F23R 3/346 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9207221 A1 19920430; DE 69111614 D1 19950831; DE 69111614 T2 19951221; EP 0554325 A1 19930811; EP 0554325 B1 19950726; JP 3077939 B2 20000821; JP H06502240 A 19940310
DOCDB simple family (application)
GB 9101658 W 19910926; DE 69111614 T 19910926; EP 91918884 A 19910926; JP 51711691 A 19910926