| 摘要 |
PROBLEM TO BE SOLVED: To provide a compressor in which a Helmholtz resonator is constituted in a sound attenuation member to enhance sound attenuation effect in the case of reducing noise of a gas flowing in a gas flow-path by the sound attenuation member. SOLUTION: A recess (52) is formed on the top surface of a stationary scroll (21) of a scroll compressor (20). A discharge hole (54) is made on the bottom face of the recess (52). The recess (52) is blocked up with the sound attenuation member (60), in which a through hole (61) is made in order to allow discharge gas in the recess (52) to flow into a closed vessel (10). A discharge gas flow-path (56) is constituted of the sound attenuation member (60) and the recess (52). The sound attenuation member (60) is made of an inside layer (62) on the down side and an outside layer (63) on the upper side. The inside layer (62) is made of a perforated metal sheet, and the outside layer (63) is made of a foam metal. The Helmholtz resonator (64) is constituted by connecting a 2nd vacancy of the inside layer (62) to a 1st vacancy of the outside layer (63), and making an opening at the discharge gas flow-path (56). COPYRIGHT: (C)2005,JPO&NCIPI
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