Gas turbine combustion cap assembly
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United States of America Patent
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Jul 12, 2016
Grant Date -
Nov 22, 2012
app pub date -
Sep 21, 2011
filing date -
May 20, 2011
priority date (Note) -
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Abstract
A gas turbine combustor cap assembly (24) including a pre-mix tube (42, 44) with an upstream flange (60, 62) that aligns and seats the tube against a primary feed plate (66) attached to an upstream end of a support ring (48). The pre-mix tube may have an intermediate flange (64) at an intermediate position on the length of the tube that aligns and seats the tube against an intermediate structural frame (68) attached to the support ring at an intermediate position on the length of the support ring. The combustor cap assembly (24) may have multiple pre-mix tubes, including a central pre-mix tube (44) with upstream (62) and intermediate (64) flanges and a circular array of outer pre-mix tubes (44) with at least an upstream flange (64).
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