High temperature manifolds for gas turbine engines
AssigneeDelavan Inc.
InventorDaniel E. Bleeker
Life of this patent
Estimating the term…
Abstract
A fuel manifold for distributing fuel to a gas turbine engine includes a plurality of interconnected manifold segments. Each manifold segment extends between a pair of fuel injector inlet fittings. Each manifold segment includes a fuel liner defining an internal fuel passage therethrough fluidly connecting a pair of fuel injector inlet fittings. A wire braid layer surrounds the fuel liner, a fire sleeve surrounds the wire braid layer, and a flexible thermal shield surrounds the fire sleeve. An insulation space is defined between the fire sleeve and the thermal shield to thermally isolate the fire sleeve from conditions external to the thermal shield.
Claims15
A fuel manifold for distributing fuel to a gas turbine engine comprising:
- a plurality of interconnected manifold segments, each manifold segment extending between a pair of fuel injector inlet fittings, each manifold segment including:
- a fuel liner defining an internal fuel passage therethrough fluidly connecting a pair of fuel injector inlet fittings;
- a wire braid layer surrounding the fuel liner;
- a fire sleeve surrounding the wire braid layer;
- and
- a flexible thermal shield surrounding the fire sleeve, wherein an insulation space is defined between the fire sleeve and the thermal shield to thermally isolate the fire sleeve from conditions external to the thermal shield.
A fuel manifold for distributing fuel to a gas turbine engine comprising:
- a plurality of interconnected manifold segments, each manifold segment extending between a pair of fuel injector inlet fittings, each manifold segment including:
- a fuel liner defining an internal fuel passage therethrough fluidly connecting a pair of fuel injector inlet fittings;
- a wire braid layer surrounding the fuel liner;
- a fire sleeve surrounding the wire braid layer;
- a flexible thermal shield surrounding the fire sleeve;
- and
- a layer of solid state insulation material between the fire sleeve and the thermal shield, wherein the thermal shield and the layer of solid state insulation material are configured and adapted to thermally isolate the fire sleeve from conditions external to the thermal shield.
A segment of a fluid manifold comprising:
- a liner of the segment of the fluid manifold defining an internal fluid passage therethrough fluidly connecting a pair of hose fitting inserts;
- a wire braid layer surrounding the liner;
- and
- a flexible thermal shield outboard of the wire braid layer, wherein an insulation space is defined inboard of the thermal shield and outboard of the wire braid layer to provide thermal isolation from conditions external to the insulation space and thermal shield, wherein the thermal shield includes a stripwound metal hose connected at each end to a respective hose fitting insert by a threaded nut having threads which intermesh with the stripwound metal hose.
Dependencies are inferred from the claim text.