PILOT MIXER FOR MIXER ASSEMBLY OF GAS TURBINE ENGINE COMBUSTOR INCLUDING PRIMARY FUEL INJECTOR AND A PLURALITY OF SECONDARY FUEL INJECTION PORTS

摘要

PROBLEM TO BE SOLVED: To reduce discharge of harmful combustion components in a wide operating state of a gas turbine.;SOLUTION: The pilot mixer 102 includes: an annular pilot housing 108 having a hollow interior; the primary fuel injector 110 mounted inside the pilot housing 108 for supplying fuel droplets to the hollow interior of the pilot housing 108; a plurality of axial swirlers 112, 114 disposed upstream of the primary fuel injector 110; and the plurality of secondary fuel injection ports 134 for introducing fuel into the hollow interior of the pilot housing 108. A main mixer 104 further includes: a main housing 124 surrounding the pilot housing 108 and forming an annular hollow 126; a plurality of fuel injection ports 128 for introducing fuel into the hollow 126; and at least one swirler 130 disposed upstream of the plurality of fuel injection ports 128.;COPYRIGHT: (C)2009,JPO&INPIT