NOISE REDUCTION WALL AND NOISE REDUCTION WALL STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a light noise reduction wall and a noise reduction wall structure for circulating a gas body that can effectively eliminate high-frequency vibration or noise being generated from all fixed or mobile noise sources.;SOLUTION: An inlet pipe where a number of opening are punched is arranged in a radial direction penetrating through the longitudinal direction of a hollow triangular prism for jetting out a sound pressure pulsation gas into the hollow triangular prism, and gas pulsation being reflected by a wall in the hollow triangular is allowed to collide each other for canceling pulsation. This sort of noise reducing unit is arranged in parallel in the direction of the thickness of a noise reduction wall.;COPYRIGHT: (C)2001,JPO