Acoustic and thermal protection device

摘要

The device (1) has a self-supporting body structure (3) with base of thermo-compressed glass felt joined by a thermosetting resin. The structure is associated to an outer metallic sheet (4), and has an inner surface part associated to a flexible acoustic absorption complex (5). The complex has a glass felt based absorbing layer (6) with an inner face associated to a porous protection layer (7). The metallic sheet is made of aluminum, and the protection layer is made of fabric or glass felt. An independent claim is also included for an assembly comprising a thermal and acoustic protection device and a hot and sound source.