High temperature fuel manifold for gas turbine engines
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United States of America Patent
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Jan 31, 2017
Grant Date -
Oct 10, 2013
app pub date -
Jun 5, 2013
filing date -
Sep 23, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A segment of a fluid manifold includes a flexible thermal shield with an insulation space defined inboard of the thermal shield to provide thermal isolation from conditions external to the thermal shield. The thermal shield includes a helically corrugated metal tube having opposed first and second ends. An outer collar is threaded to an end of the helically corrugated metal tube. The outer collar includes a crimped portion and an uncrimped portion. The uncrimped portion is spaced apart from the corrugated helical metal tube more than the crimped portion to define a vent between the outer collar and the corrugated helical metal tube in venting communication with the insulation space to vent hot gases.
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