Patent ID: 6817834
Filing Date: 2004-11-16
Classification: F16H

Abstract:
An impeller for a fluid transmitting device, comprising a bowl-shaped or annular shell, a plurality of blades coupled to an inner side of said shell at predetermined locations, an annular retainer plate brazed to an inner side of said shell to retain radially inner ends of said blades, and a hub welded to an inner peripheral edge of said shell,wherein a cylindrical section is integrally formed at an inner peripheral edge of said shell and bent axially to extend through an inner periphery of said retainer plate, and a brazing material sump for receiving a brazing material molten during brazing of said shell and said retainer plate is provided between an outer peripheral surface of said cylindrical section and an inner peripheral surface of said retainer plate, said cylindrical section being fitted over an outer peripheral surface of said hub and welded to said hub on a side of an outer surface of said shell.