Systems and methods for radiant heat reflective aircraft evacuation systems
AssigneeGoodrich Corporation
InventorsRajamanikandan Sivaraman, Parthasarathy Govindaraju, Chana Kesava Reddy
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Abstract
An aircraft evacuation slide assembly may be comprised of a plurality of composite textiles. Each composite textile may comprise a fabric substrate, an inner polyurethane coating, and an outer heat reflective coating. The outer heat reflective coating may comprise nanofillers that improve polymer properties, such as mechanical, barrier, thermal, flame retardancy, and electrical properties. Moreover, the outer heat reflective coating may comprise nanofillers that enable hot air welding and radio frequency welding of the plurality composite textiles to form the aircraft evacuation slide assembly.
Claims18
A composite textile, consisting of:
- a fabric substrate;
- an inner polyurethane coating applied to a first surface of the fabric substrate;
- and
- an outer heat reflective coating applied to a second surface of the fabric substrate, wherein the outer heat reflective coating comprises nanofillers, wherein the nanofillers are configured to be mixed into the outer heat reflective coating, wherein the outer heat reflective coating further comprises ceramic nanoparticles, and wherein an amount of ceramic nanoparticles in the outer heat reflective coating imparts requisite thermal properties to support at least one of hot air welding or radio frequency welding of the fabric substrate.
An aircraft evacuation slide assembly, comprising:
- an inert gas inflation system;
- and
- an evacuation slide including an inner surface and an outer surface, wherein the evacuation slide is comprised of a plurality of composite textiles, wherein each composite textile of the plurality of composite textiles is configured to be joined to one another, wherein each composite textile consists of:
- a fabric substrate;
- an inner polyurethane coating applied to a first surface of the fabric substrate, wherein the inner polyurethane coating is configured for the inner surface of the evacuation slide;
- and
- an outer heat reflective coating applied to a second surface of the fabric substrate, wherein the outer heat reflective coating comprises nanofillers, wherein the nanofillers are configured to be mixed into the outer heat reflective coating, wherein the outer heat reflective coating further comprises ceramic nanoparticles, and wherein an amount of ceramic nanoparticles in the outer heat reflective coating imparts requisite thermal properties to support at least one of hot air welding or radio frequency welding of the fabric substrate.
A method of manufacturing an aircraft evacuation slide, comprising:
- assembling a plurality of composite textiles, wherein the assembling of each composite textile further comprises:
- forming an outer heat reflective coating, wherein the forming further comprises mixing a nanofiller compound in a polyurethane coating, wherein the outer heat reflective coating further comprises ceramic nanoparticles;
- applying the outer heat reflective coating to a first surface of a fabric substrate, wherein an amount of ceramic nanoparticles in the outer heat reflective coating imparts requisite thermal properties to support at least one of hot air welding or radio frequency welding of the fabric substrate;
- applying an inner polyurethane coating to a second surface of the fabric substrate;
- bonding the outer heat reflective coating and the inner polyurethane coating to the fabric substrate;
- and
- joining the plurality of composite textiles to one another, wherein the joining is configured to form the aircraft evacuation slide with the inner polyurethane coating forming an inner surface of the aircraft evacuation slide.
Dependencies are inferred from the claim text.