Fuel/air premixer for gas turbine combustor

Details Fuel/air premixer for gas turbine combustor Fuel/air premixer for gas turbine combustor

2004-08-03

2008-10-14

Kramer, Devon (Department: 3746)

Power plants

Combustion products used as motive fluid

Combustion products generator

C060S748000

Reexamination Certificate

active

07434401

ABSTRACT:
A fuel/air premixer for use in a gas turbine improves the atomization performance and mixing performance of the fuel by guiding an air so as to flow in an outward radial direction. A flow-deflecting tubular body having an annular cross section is disposed on the inside of and coaxially with a liquid film-forming body of an airbiast atomizer nozzle disposed at the inlet portion of a premixing tube. The outer peripheral surface of the flow-deflecting tubular body has a wall surface which increases in outer diameter toward the tip end of a first annular passage. The inner peripheral surface of the flow-deflecting tubular body has a form in which the inner diameter has a minimum to form a contracted portion, and then increases dramatically toward the tip end.

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