IMPELLER FOR COMPRESSOR

摘要

Efficiency of a compressor is increased by preventing localization of a boundary layer occurring on the surface of a hub and by reducing the thickness of the boundary layer. An impeller of a compressor, having blades and a hub provided at a root section of the blades and in which at least a part of that surface of the hub where a fluid flows is inclined relative to the rotation axis. A boundary layer reducing section for reducing the thickness of a boundary layer caused by a flow of the fluid is provided.