LOW NOISE DEVICE FOR BLOWER

摘要

PROBLEM TO BE SOLVED: To provide a low noise device for a blower which fits in with reality, while soundproofing a whole blower. SOLUTION: The low noise device for the blower surrounds the blower having an impeller in a casing provided with a suction and discharge ports. The device is formed of a sound absorbing wall arranged at a proper interval between the wall and the casing. The sound absorbing wall is provided with a suction and discharge openings, and the sound absorbing wall is also constituted of: hard outer and inner wall bodies; and a sound absorbing material surrounded by the outer and inner wall bodies. Further, a sound absorbing means is provided in the inner wall body. COPYRIGHT: (C)2006,JPO&NCIPI