INLET GUIDE VANE, COMPRESSOR, INLET GUIDE VANE MOUNTING METHOD, AND CENTRIFUGAL COMPRESSOR MANUFACTURING PROCESS

摘要

PROBLEM TO BE SOLVED: To provide an inlet guide vane having a sufficient performance and an easy assembly, a compressor having the inlet guide vane, and a mounting method for an inlet guide vane.SOLUTION: An inlet guide vane comprises a vane body 42 having a belly surface S1 and a back face S2 extending along a radial axis Ar. Each of the belly surface S1 and the back face S2 has an airfoil surface along a surface of a virtual airfoil Pv with an airfoil cross-sectional shape. At least one of the belly surface S1 and the back face S2 has a thin wall part formation surface St retracting to the inside of the virtual airfoil Pv from the surface of the virtual airfoil Pv.SELECTED DRAWING: Figure 3