| 摘要 |
PROBLEM TO BE SOLVED: To provide a blade profile part of a rotor of a compressor which has an improvement in aerodynamic performance despite an increased clearance of a blade end because of friction of the end. SOLUTION: The blade profile part (20) of the compressor includes opposite positive and negative pressure sides(26, 28) which are connected to each other at the front and rear edges(30, 32), and are extending between a root(34) and the end(36) along a span. The blade profile part(20) includes a stagger which increases above the root(34) and decreases above a middle pitch section(40) of the span of the blade profile part. Furthermore, the root(34) and the end(36) of a concave projected line in the axial direction along the front edge(30) are extended ahead of the pitch section(40) along the front edge. COPYRIGHT: (C)2005,JPO&NCIPI
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