SUPPLY AIR DUCT WITH NOISE REDUCING FUNCTION TO REDUCE NOISE

摘要

PURPOSE: A supply duct having noise reduction function is provided to reduce the noise generating by the inner pressure of the main duct.;CONSTITUTION: The supply duct(1) having the noise reduction function comprises the main body(10), the absorber(20), the expansion member(30), the porous plate(40). The main body includes the vent, the supporting plate and flange. The absorber is attached to the inner wall whole of the main body with the attachment means. The porous plate covers the surface of the expansion member included in the surface of absorber and 'the absorber attached to the inner wall of the main body.;COPYRIGHT KIPO 2012