| 摘要 |
PROBLEM TO BE SOLVED: To provide a compressor capable of suppressing resonance sound in a circulation flow path, and preventing the increase of noise generated from the compressor. SOLUTION: The compressor comprises a plurality of blades rotationally driven about their rotation axis, a gas entrance 4 extending along the rotation axis and leading gas to the blades, the circulation flow path 5 circumferentially arranged about the rotation axis and interconnecting the gas entrance 4 and a shroud for the blades, and struts 9 extending radially about the rotation axis to divide the circulation path. A resonance frequency obtained based on the circumferential length of the circulation path 5 divided by the struts 9 is greater than a noise frequency obtained based on the number of rotation of the blades and the number of the blades. COPYRIGHT: (C)2009,JPO&INPIT |
