Flexible heat shields and method
First Claim
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1. A heat shield assembly for a stem of a fuel nozzle, the assembly comprising:
- a fuel nozzle having a stem extending along a central axis between a mounting portion and a nozzle tip, the stem having at least one non-linear portion in which the central axis is non-linear;
a flexible inner jacket disposed around at least the non-linear portion of the stem of the fuel nozzle, the inner jacket comprising at least one layer of meshed thermal insulation material; and
a flexible outer jacket disposed around the inner jacket, the outer jacket comprising at least one layer of meshed wires.
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Abstract
A heat shield comprises a flexible inner jacket configured and disposed to be fitted around at least a portion of a component, and a flexible outer jacket configured and disposed to be fitted around the inner jacket.
48 Citations
16 Claims
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1. A heat shield assembly for a stem of a fuel nozzle, the assembly comprising:
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a fuel nozzle having a stem extending along a central axis between a mounting portion and a nozzle tip, the stem having at least one non-linear portion in which the central axis is non-linear; a flexible inner jacket disposed around at least the non-linear portion of the stem of the fuel nozzle, the inner jacket comprising at least one layer of meshed thermal insulation material; and a flexible outer jacket disposed around the inner jacket, the outer jacket comprising at least one layer of meshed wires. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A heat shield assembly for a fuel nozzle component, the heat shield assembly comprising:
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a fuel component having a stem extending between a base and a nozzle tip, the stem having at least one non-linear portion including two linear portions connecting at an obtuse angle; a flexible thermal insulation inner jacket covering at least the non-linear portion of the component; and an outer jacket covering the inner jacket between two opposite ends of the heat shield, the outer jacket comprising meshed wires wherein at least some junctions between wires of the meshed wires are attached by attachment points made from braze wires interwovenly provided within the outer jacket, the braze wires having a lower melting point than the meshed wires, at least portions of the braze wires having been selectively melted to provide said attachment points. - View Dependent Claims (13, 14, 15, 16)
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Specification