| 摘要 |
A turbomachine (100a) of this disclosure includes a rotation shaft (4), a first impeller (3a), a first bearing (1), and a second bearing (2). The first impeller (3a) is fixed to the rotation shaft (4) and includes a low-pressure-side surface (31). The first bearing (1) is adjacent to the low-pressure-side surface (31) of the first impeller (3a) and supports the rotation shaft (4). The second bearing (2) is disposed on an opposite side of the first impeller (3a) from the first bearing (1) and supports the rotation shaft (4). The rotation shaft includes a first tapered portion (41) gradually increasing in diameter toward the first impeller (3a). The first bearing (1) includes a first support surface (11) supporting the first tapered portion (41) . |
