| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor which is prevented from troubles, such as crack or vibration, under high temperature environment, and has durability.SOLUTION: A rotor includes a hollow barrel part made from ceramic, and a solid shaft part fitted into both end portions of the barrel part and made from ceramic. The barrel part and the shaft part have respective fitting faces on which they are fitted in close contact. A fitting interface between the barrel part and the shaft part is provided with an air hole extending along a rotation axis direction of the rotor. |
