Patent ID: 8251649

Claim:
A blade row of an axial flow type compressor in which a rotor blade row and a stator blade row are alternately arranged in an axial direction, wherein the stator blade row is formed by plural main stator blades which are located in a circumferential direction of a rotary axis of the rotor blade row so as to have an interval therebetween and plural sub-stator blades which are located between the main stator blades in a circumferential direction so as to have an interval therebetween, wherein each main stator blade is formed by a basic blade portion which has the same shape as that of each sub-stator blade and a forward blade portion which extends to the upstream side of the basic blade portion, wherein the basic blade portion of the main stator blade and the sub-stator blade are located at the same position in an axial direction so as to form a basic stator blade row therebetween, and wherein the forward blade portion of the main stator blade forms a forward stator blade row which has a circumferential interval larger than that of the basic stator blade row in the vicinity of at least a radial inner end.