Rotating Machine

Abstract: The present invention comprises: a rotor; an annular sealing body part that includes the inner peripheral surface which is a static wall surface facing the outer peripheral surface of the rotor and a plurality of holes which are formed in the inner peripheral surface; a plurality of static fin parts that are disposed on the inner peripheral surface at intervals in the axial direction of the rotor; and at least one first rotor fin part that is disposed on the outer peripheral surface of the rotor. Each of the plurality of static fin parts extends along the circumferential direction of the rotor and protrudes toward the outer peripheral surface of the rotor from the inner peripheral surface, and each of the at least one first rotor fin part extends along the circumferential direction and protrudes toward the hole from the outer peripheral surface of the rotor.

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