| 摘要 |
An air foil bearing is provided to prevent damage to the internal parts by making the height of the foil parts of the bump foil uniform so that the radial inner and outer parts of the bump unit are equal in height. An air foil bearing(300) comprises a base plate(310) in which a rotator(390) is combined to rotate, a bump foil(320) whose one end(329) is fixed to the base plate, and a top foil(330) arranged between the rotator and the bump foil so as to overlap with the bump foil. The bump foil consists of a plurality of foil parts(321~327) arranged at regular intervals in the circumferential direction and bridges(328) connecting the foil parts. The inner and the outer length of the bump foil are determined at different angles. |
