Thermal and acoustic protective shield for motor vehicle exhaust pipe has rigid structure and multi-layer complex joined by stitches

摘要

The shield (1), comprising rigid structure (2) and multi-layer complex with porous (3) and reflective (4) layers, is assembled by network of filaments passing through components and forming perforations (7) in reflective layer. The filaments are based on glass fibre and are applied in the form of stitches in zigzag rows (6). The shield (1), comprising a rigid structure (2) and a multi-layer complex with porous (3) and reflective (4) layers, is assembled by a network of filaments passing through the components and forming perforations (7) in the reflective layer. The filaments are based on glass fibre and are applied in the form of stitches in zigzag rows (6). The rigid structure is of a molded plastic material with a filler and integral fixings (5), and the multi-layer complex can be overmolded onto it. The reflective layer is of aluminum foil less than 100 microns thick.