SILENCER FOR SUPERCHARGER AND SUPERCHARGER USING THIS SILENCER

摘要

[Problem] To provide: a silencer for a supercharger, that has optimal cost reduction and good improvement in amount of silencing; and a supercharger using this silencer. [Solution] Any sound-absorbing splitter (20) and another sound-absorbing splitter (20) adjacent thereto that are formed in a shape along a site having the same distance interval from an origin in each of a plurality of involute curves having different origins having as the basis therefor a fixed circle having the same center as a central axis (CA) and the same radius. A flow path width (w) being the dimension in the normal direction of the involute curve in a flow path (19) between any sound-absorbing splitter (20) and another sound-absorbing splitter (20) is set to a prescribed constant value suitable for the wavelength of the noise to be silenced.