PROBLEM TO BE SOLVED: To reduce a loss by a leakage flow passing through a blade end clearance by gently inclining a blade tip part to the circumferential directional negative pressure side, and setting an inclined part to a specific moving blade height position and an inclination. ;SOLUTION: A blade tip part 11 (a tip part) of an axial flow compressor moving blade 10 gently inclines to the circumferential directional negative pressure side. According to an analytical result, a loss factor running along a moving blade height L becomes maximum in a position of 95% of the moving blade height L, and becomes a large value in a range not less than 85% around it. Therefore, an inclined part 12 is set not less than at least 10% of the moving blade height L, preferably, about 30%, and is gently inclined. Even it is set not less than 30%, an effect is little, and bending stress by centrifugal force becomes large, and fatigue strength of a moving blade 10 reduces. An inclination αof the inclined part 12 is preferable to be about 20° to about 30°. According to an analytical result, when it is not more than 20°, a reducing effect of a loss factor is almost eliminated, and in the case of 30°, the loss factor can be sharply reduced. When it exceeds 30°, the bending stress becomes large.;COPYRIGHT: (C)1998,JPO
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