F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
F23D 11/36 (2006.01) F23R 3/28 (2006.01)
Patent
CA 2384153
A fuel nozzle support stem for a gas turbine engine the stem having: a longitudinal axis (9); an elongated substantially cylindrical body (4) symmetric about the axis and having an outer diameter DO and Length L; an inlet end (11) with primary (12) and secondary (13) fuel inlet ports; and an outlet end (14) with primary (15) and secondary (16) fuel outlet ports, the support stem having a concentric longitudinal secondary fuel bore (17) having an inner diameter DI and communicating between the secondary in- let port and the secondary outlet port, and a concentric primary fuel tube (20) disposed within the bore, sealed to the inlet and outlet ends of the sup- port stem and communicating between the primary inlet port and the primary outlet port; wherein Do is greater than 2DI, and L is less than 10 (Do - DI).
L'invention concerne une tige de support d'injecteur de carburant pour turbine à gaz. La tige comporte un axe longitudinal (9); un corps (4) cylindrique sensiblement allongé, symétrique autour de l'axe, de diamètre extérieur D0 et de longueur L ; une extrémité d'entrée (11) comportant des orifices primaire (12) et secondaire (13) d'entrée de carburant; et une extrémité de sortie (14) comportant des orifices primaire (15) et secondaire (16) de sortie de carburant. La tige de support comporte un orifice (17) de carburant secondaire longitudinal concentrique, de diamètre interne DI, qui permet à l'orifice d'entrée secondaire de communiquer avec l'orifice de sortie secondaire ; et un tube (20) de carburant primaire concentrique placé dans l'orifice, scellé aux extrémités d'entrée et de sortie de la tige de support et permettant à l'orifice d'entrée primaire de communiquer avec l'orifice de sortie primaire. D0 est supérieur à 2DI, et L est inférieur à 10 (D0 - DI).
Kostka Richard Alan
Sampath Parthasarathy
Bailey Todd D.
Pratt & Whitney Canada Corp.
Pratt & Whitney Canada Corp./pratt & Whitney Canada Cie.
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