Noise screen to be placed in regard of the engine of an automotive vehicle.

摘要

The screen (1) has a structural shell (2) whose face is turned toward a porous absorption layer (3) and provided with high projections (6). The layer has openings (7) through which the projections are passed so as to be projected from the layer from another face opposed to the former face. A porous protection sheet (4) is positioned on the projections so as to be separated from the layer. The former face of the shell is equipped with low projections (5). The layer is placed on the low projections so as to be separated from the face, where the projections are in form of pins and ribs. The sheet is made of thermoplastic or metal material and porous material.