NOZZLE RING WITH NON-UNIFORMLY DISTRIBUTED AIRFOIL AND UNIFORM THROAT AREA

摘要

PROBLEM TO BE SOLVED: To provide a nozzle ring having a uniform individual throat area between neighboring vanes, and divided into segments in which each of the segments is composed of nozzle vanes different in number.SOLUTION: Each segment is composed of different number of vanes per a prescribed angle, the vanes are uniformly distributed in the circumferential direction in each segment, and a threat area (a) between neighboring vanes is same in each pair of neighboring vanes in all of the segments.