CENTRIFUGAL COMPRESSOR AND GEARED CENTRIFUGAL COMPRESSOR
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United States of America Patent
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app pub date -
Aug 10, 2015
filing date -
Feb 13, 2015
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Abstract
A centrifugal compressor includes a rotation shaft that extends along an axis; an impeller that includes a disk fixed to the rotation shaft and protruding outward in a radial direction, a plurality of blades provided in a surface facing one side in an axial direction of the disk to be separated from each other in a circumferential direction, and a cover covering the blades from the one side in the axial direction; and a casing that includes a facing inner peripheral surface facing an outer peripheral surface of the cover in the impeller and covers the impeller from an outside. The facing inner peripheral surface includes a cylindrical inner peripheral surface that extends along the axis and an enlarged inner peripheral surface that is connected to another side of the cylindrical inner peripheral surface in the axial direction and extends outward in the radial direction toward the other side.
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