US Patent 10895268 Variable stator vane structure of axial compressor

In an axial compressor including a row of rotor blades (70) provided on a rotational shaft (20) around a central axial line of the rotational shaft at a prescribed pitch, and a row of stator vanes (40) provided on a casing around the central axial line at a prescribed pitch so as to adjoin the row of rotor blades on an upstream or downstream side thereof, the rotor blades each extend along a radial line (R) emanating from the central axial line, and the stator vanes each extend along a slanted line (I) that is slanted with respect to a corresponding radial line in a circumferential direction.