초록 ▼

A thermal insulating structure for providing thermal insulation, structural load accommodations, and noise attenuation for surfaces in aerospace systems that are exposed to high temperatures. At the side adjacent the structure to be protected is a high-temperature solid back sheet to which is adhesi

A thermal insulating structure for providing thermal insulation, structural load accommodations, and noise attenuation for surfaces in aerospace systems that are exposed to high temperatures. At the side adjacent the structure to be protected is a high-temperature solid back sheet to which is adhesively bonded a honeycomb core having a perforated buried septum. A layer of cast fiber-ceramic insulation is secured to the honeycomb core, filling portions of the core outward from the septum and extending beyond the outer face of the core. To absorb structural loads, a densified top coat overlies the insulating layer. To minimize the transmission of shear-inducing loads into the insulating layer, the outer face of the honeycomb core has an irregular surface. Core cell vents extending through the walls of adjacent cells provide a controlled airspace between the back sheet and the buried septum through which a fluid coolant may be circulated.

대표청구항

Thermal ceramic insulation, comprising: (a) a honeycomb core having a plurality of cells; (b) fiberformed ceramic insulation partially filling each cell of the core and forming a porous sheet on one face of the core; and (c) a reinforced glass top coat attached to the porous sheet.

Thermal ceramic insulation, comprising: (a) a honeycomb core having a plurality of cells; (b) fiberformed ceramic insulation partially filling each cell of the core and forming a porous sheet on one face of the core; and (c) a reinforced glass top coat attached to the porous sheet.