Laser clad fuel injector premix barrel
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United States of America Patent
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Jun 5, 2018
Issued Date -
N/A
app pub date -
Oct 9, 2015
filing date -
Mar 1, 2012
priority date (Note) -
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Abstract
A fuel injector for a gas turbine engine may include a center body disposed about a longitudinal axis, and a premix barrel positioned radially outwardly from the center body to define an annular passageway between the center body and the premix barrel. The annular passageway may extend from an upstream end that is configured to be fluidly coupled to a compressor to a downstream end that is configured to be fluidly coupled to a combustor. The premix barrel may include a first portion at the upstream end and a second portion at the downstream end. The first portion may include a stainless steel material, and the second portion may include a nickel based superalloy material. The second portion may be coupled to the first portion by a laser clad coupling.
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