| 摘要 |
PROBLEM TO BE SOLVED: To provide a centrifugal compressor stage for a centrifugal compressor showing small vibration excited through asynchronous excitation, in particular.SOLUTION: A fluid inlet edge part 22 of a guide blade 20 at a stator side is positioned on the first circular contour, i.e. the fluid inlet edges 22 of all the guide blades 20 at the stator side have the same spacing in respect to each of the fluid inlet edges 22 of the adjoining guide blades 20. Fluid outlet edge parts 23 of the guide blades 20 at the stator side are positioned on the second circular contour, i.e. in at least one first peripheral position, each of fluid outlet edge parts 23 of the guide blades 20 at the stator side has a prescribed spacing in respect to at least one adjoining fluid outlet edge part 23 of the guide blades 20 at a position other than the second peripheral position.SELECTED DRAWING: Figure 1 |
