ROTARY MACHINE

摘要

A rotary machine includes a casing that is disposed on the outer circumference side of a rotating shaft and rotates about the axis relative to the rotating shaft, and a hole pattern seal that is fixed to the casing, divides a space between the rotating shaft and the casing into a high pressure side and a low pressure side, and has a first hole line on which a plurality of first hole portions are formed at intervals in a circumferential direction so as to face an outer circumferential surface of the rotating shaft. The hole pattern seal has fin portions that extend toward the rotating shaft at the high-pressure side of the first hole line and in the circumferential direction. The rotating shaft includes a convex portion that protrude from the outer circumferential surface of the rotating shaft toward the first hole portions to extend in the circumferential direction, and face the first hole portions at the low pressure side of the fin portion. The convex portion has a wall surface facing the fin portions.

主权项

1. A rotary machine comprising:
a rotor configured to extend along an axis; a stator disposed at an outer circumference side of the rotor and configured to rotate about the axis relative to the rotor; and a hole pattern seal fixed to the stator, configured to divide a space between the rotor and the stator into a high pressure side and a low pressure side, and configured to have a first hole line on which a plurality of first hole portions facing an outer circumferential surface of the rotor are formed at intervals in a circumferential direction, wherein the hole pattern seal has fin portions that extend toward the rotor at the high pressure side of the first hole line and in the circumferential direction, wherein the rotor comprises convex portion that protrude from the outer circumferential surface thereof toward the first hole portions to extend in the circumferential direction, and face the first hole portions at the low pressure sides of the fin portions, and wherein the convex portion has a wall surface facing the fin portions.