| 摘要 |
PURPOSE: A centrifugal compressor is provided to reduce noise by smoothly moving fluid compressed by an impeller between vanes. CONSTITUTION: A centrifugal compressor comprises an impeller, diffusers(120), and a drive unit(150). The impeller is rotated with high speed and compresses fluid. The diffusers are formed along the circumference of the impeller at uniform intervals. The diffusers comprise vanes(133) and multiple vane units(130) with vane bodies(131). The compressed fluid moves between the vanes. The vanes are rotatably coupled to the vane bodies of the vane units. The drive unit adjusts the intervals or angles of the vanes by powering the vane units.
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