| 摘要 |
PROBLEM TO BE SOLVED: To improve the reliability and the compressive performance, and to improve the blade manufacturability by setting the shape and structure of a blade. SOLUTION: This fluid machinery comprises a cylinder 6, a roller eccentrically arranged in this cylinder and put into an eccentric motion, a spiral groove 10 provided on an outer circumferential surface of this roller, and blades attachably/detachably fitted to/from this spiral groove to form a plurality of compression chambers. The blades are divided into a first blade 11A and a second blade 11B along the spiral direction, and connection parts Ra, Rb fitted or closely attached, and connected to each other in the spiral direction are provided on end parts of the divided blades.
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