| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbo machine which stably supports a rotary shaft by a simple structure.SOLUTION: A turbo machine includes: a rotary shaft 40 which has a first tapered portion 41 having a diameter decreasing toward an end, and a first columnar portion 42 having a fixed diameter in an axial direction; a first impeller 30 which is fixed to the rotary shaft, and compresses or expands a hydraulic fluid; a first bearing 10 which rotatably supports the first tapered portion and the first columnar portion; and a second bearing 20 which are positioned on the opposite side to the first bearing in the axial direction of the rotary shaft to the first impeller, and supports the rotary shaft in the axial direction of the rotary shaft and in a radial direction of the rotary shaft.SELECTED DRAWING: Figure 1 |
