High temperature fuel manifold for gas turbine engines

摘要

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.

主权项

1. A segment of a fluid manifold for a gas turbine engine comprising:
a flexible thermal shield with an insulation space defined inboard of the flexible thermal shield to provide thermal isolation from conditions external to the flexible thermal shield, wherein the flexible thermal shield includes a helically corrugated metal tube having opposed first and second ends; and an outer collar threaded to a first end of the helically corrugated metal tube, wherein a vent is defined between the outer collar and the flexible thermal shield in venting communication with the insulation space.