Patent ID: 11927199
Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 9:
10. A compressor comprising:
a rotation shaft which rotates around an axis;
an impeller which press-feeds a fluid from one side in an axial direction toward an outward side in a radial direction by rotating together with the rotation shaft;
a casing which surrounds the rotation shaft and the impeller and in which an exit flow channel for introducing the fluid press-fed from the impeller is formed; and
an acoustic liner which is provided so as to face an inside of the exit flow channel in the casing, wherein
the acoustic liner has:
a plurality of open hole portions which are arranged with intervals therebetween; and
acoustic spaces which each communicate with one or more of the open hole portions, and

each of the acoustic spaces communicates with the exit flow channel only through the open hole portions that are disposed along a direction perpendicular to a direction of flow of the fluid in the exit flow channel.