Thermal insulation system and method of forming thereof

• US 5,626,951 A
• Filed: 04/03/1995
• Issued: 05/06/1997
• Est. Priority Date: 04/03/1995
• Status: Expired due to Fees

• Current Assignee: Rockwell International Corporation
• Original Assignee: Rockwell International Corporation
• Inventors: Hogenson, Peter A.
• Primary Examiner(s): Bell, James J.
• Application Number:
  US08/416,125
• Time in Patent Office: 764 Days
• Field of Search: 428/229, 428/237, 428/252, 428/902, 428/920, 428/245, 428/260, 428/246
• US Class Current: 442/262
• CPC Class Codes: B32B 19/06 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 2262/105 Ceramic fibres
• CPC Class Codes: B32B 2307/304 Insulating
• CPC Class Codes: B32B 2605/18 Aircraft blades, propellers B32B2603/00
• CPC Class Codes: B32B 5/024 Woven fabric
• CPC Class Codes: B32B 5/26 another layer next to it also being fibrous or filamentary relative arrangement of fibres or filaments of different layers B32B5/12
• CPC Class Codes: B64G 1/58 Thermal protection, e.g. heat shields
• CPC Class Codes: Y10S 428/902 High modulus filament or fiber
• CPC Class Codes: Y10S 428/92 Fire or heat protection feature
• CPC Class Codes: Y10T 442/3659 At least one layer comprises ceramic or glass material in other than particulate form

Abstract

A thermal insulation system comprising an insulator core formed of ceramic material and, an outer layer integrally connected on an inner surface to a first side of the insulator core, the outer layer comprising a woven material impregnated with a ceramic matrix. In one embodiment, a thermal insulation blanket is formed having a flexible insulator core formed of ceramic fibrous materials, an outer layer integrally connected to one side of the insulator core, and an inner layer connected to a second side of that core. The inner layer is formed of woven material. In a second embodiment, a thermal insulation tile is formed including a rigid insulator core formed of ceramic material and an outer layer integrally connected to an inner surface to a first side of insulator core. The outer layer comprises a woven ceramic material impregnated with a ceramic matrix.

Claims

1. A thermal insulation blanket, comprising:

a flexible insulator core formed of ceramic fibrous materials;

an outer layer integrally connected on an inner surface to a first side of said insulator core, said outer layer comprising a woven ceramic material impregnated with a ceramic matrix, said woven ceramic being impregnated by infiltration or deposition; and

an tuner layer connected to a second side of said insulator core, said inner layer comprising a woven material.

3. The thermal insulation system of claim 1, wherein an outer surface of said outer layer is substantially smooth.

2. A thermal insulation tile, comprising:

a rigid insulator core formed of ceramic material, said core being sized so as to be capable of being installed at a desired location on the surface of an aerospace vehicle; and

,

an outer layer chemically and integrally connected on an inner surface to a first side of said insulator core, said outer layer comprising a woven material impregnated with a ceramic matrix, said woven material being impregnated by infiltration or depositon, said insulator core and outer layer forming a unified structure which can be installed at said desired location.