COMPRESSOR COVER, CENTRIFUGAL COMPRESSOR, AND SUPERCHARGER, AND COMPRESSOR COVER MANUFACTURING METHOD

Provided is a compressor cover that covers a delivery fan which outwardly discharges in the radial direction a fluid sucked in from an axial direction by rotating around the axis, the compressor cover comprising: a cover body that includes a tubular part in which a tubular inner peripheral surface along the axis and a shroud surface that is disposed on an axially downstream side of the tubular inner peripheral surface and expands in diameter toward the downstream side are formed; and a sleeve that includes an outer tube having an outer peripheral surface that is fixed to the tubular inner peripheral surface, an inner tube that is disposed on a radially inner side of the outer tube and defines a recirculation flow path in which a portion of the fluid that is sucked in by the delivery fan circulates between the inner tube and the outer tube, and a plurality of struts that are disposed at intervals in the peripheral direction so as to connect the outer tube and the inner tube, thereby partitioning the recirculation flow path into a plurality of sections.