Document Type and Number:
Japanese Patent JPS5139308
Kind Code:
B2
Abstract:
The impeller wheel of the invention comprises a shell, a plurality of blades connected in one body and a core ring, each blade having a rib at its outer periphery. Each blade seats on the inner surface of the shell and is rigidly secured, at the rib, to the shell for increased durability and rigidity of the blade structure.
Application Number:
JP6782772A
Publication Date:
October 27, 1976
Filing Date:
July 05, 1972
Export Citation:
International Classes:
B23P15/02; F16D33/18; F16H41/28