CENTRIFUGAL BLOWER AND MANUFACTURING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To solve the problem of low reliability at the time of high speed rotation due to deformation at a fixed part of a main plate and a blade with a relatively low load when an axial force acts on the main plate fixed on a rotation shaft in a centrifugal blower using the blade manufactured by extruding a metallic lump. SOLUTION: The blade is inserted and fixed inside a groove to a position where the tip of the blade contacts the tip of the groove for engaging the blade formed on the main plate for fixing the blade not only in the side surface directions but also at the tip of the blade. COPYRIGHT: (C)2003,JPO