F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/176
F02C 7/22 (2006.01) F23D 11/24 (2006.01) F23D 17/00 (2006.01)
Patent
CA 1178068
13DV-7418 DUAL FUEL PATH STEM FOR A GAS TURBINE ENGINE ABSTRACT OF THE DISCLOSURE A stem couples a fuel injector inlet to a fuel nozzle. The fuel nozzle includes a primary fuel flow portion and a secondary fuel flow portion. The stem includes an input end for receiving a primary fuel flow and a secondary fuel flow from the fuel injector inlet. The stem includes three concentric tubes with the first tube coupling the primary fuel flow from the injector to the primary portion of the nozzle. A second concentric tube couples the secondary fuel flow from the injector to the secondary portion of the nozzle. The primary fuel flow and the secondary fuel flow in the two concentric tubes are nonlinear with respect to the input and output ends of the stem. The third concentric tube provides structural support and an insulating space for the first two concentric tubes. Methods for constructing the stem are provided. Other embodiments are disclosed.
388660
Ball Craig K.
Richey John M.
Company General Electric
Eckersley Raymond A.
LandOfFree
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