Thermal insulation assembly
AssigneeGeneral Electric Company
InventorsKarthick Gourishankar, Mohandas Nayak, Rejin Ratnakar, Eric Daniel Holbrook
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Abstract
A thermal insulation assembly for a duct through which high temperature fluid, greater than 500 Fahrenheit, passes. The thermal insulation assembly can experience pressures less than 80 kilopascals and can be included in a turbine engine. The thermal insulation assembly includes a first foil layer confronting the duct, a second foil layer spaced from the first foil layer, an insulation layer between the first foil layer and the second foil layer, an opacifier layer provided on the insulation layer, and a reflective layer applied to the opacifier layer.
Claims20
A thermal insulation assembly for a duct provided within a turbine engine, the thermal insulation assembly comprising:
- a first foil layer;
- a second foil layer spaced from the first foil layer;
- an insulation layer located between the first foil layer and the second foil layer, the insulation layer having a first insulation surface facing the first foil layer and a second insulation surface facing the second foil layer;
- a first opacifier layer confronting the first insulation surface;
- and
- a first reflective layer located between the first opacifier layer and the first foil layer.
A thermal insulation assembly for a duct, the thermal insulation assembly comprising:
- an insulation layer having a first insulation surface and a second insulation surface;
- a first opacifier layer confronting the first insulation surface;
- and
- a first reflective layer confronting the first opacifier layer.
A thermal insulation assembly for a duct, the thermal insulation assembly comprising:
- an insulation layer having a first insulation surface and a second insulation surface;
- and
- a first bi-layer coating including an opacifier layer provided on the first insulation surface and a reflective layer provided on the opacifier layer.
Dependencies are inferred from the claim text.