F - Mech Eng,Light,Heat,Weapons – 23 – R
Patent
F - Mech Eng,Light,Heat,Weapons
23
R
F23R 3/28 (2006.01) F23D 14/02 (2006.01) F23D 14/64 (2006.01) F23R 3/20 (2006.01)
Patent
CA 2430657
A fuel/air premixer (16) for an industrial type gas turbine combustor (10) wherein the premixer (16) includes a diffuser ring assembly (20) made up of annular concentric rings (22) and upstream of the diffuser ring assembly (20) in the airflow path is a corresponding fuel manifold ring assembly (32), each ring (34) in the manifold ring assembly (32) corresponding to a passageway formed between the diffuser rings (22), and each manifold ring (34) includes a downstream channel (40) for feeding the fuel to the air as the air passes by the ring (34). The passageways have an upstream section and a downstream section relative to the airflow with a converging cross-sectional area of the upstream and a diverging cross-sectional area at the downstream section.
La présente invention concerne un prémélangeur destiné à un moteur à turbine à gaz de type industriel. Ce prémélangeur comprend un ensemble bague de diffuseur constitué de bagues concentriques annulaires et, en amont de cet ensemble bague de diffuseur dans le trajet du flux d'air, un ensemble bague de collecteur de carburant, chaque bague de cet ensemble bague de collecteur de carburant correspondant à un passage formé entre les bagues de diffuseur, et chaque bague de collecteur comprend un canal aval destiné à alimenter l'air en carburant lorsque cet air passe par cette bague.
Cowburn David E.
Oikawa Stephen O.
Stuttaford Peter
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Pratt & Whitney Canada Corp.
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