Title:
CASCADE PUMP
Document Type and Number:
Japanese Patent JP2003106283
Kind Code:
A
Abstract:
To provide a cascade pump which can suppress the defective rotation of an impeller by inclining the impeller to a drive shaft, and exert the table pump performance.
This cascade pump 51 comprises a boss 52 which is rotatably fixed to the drive shaft 21 together with the drive shaft 21 and has a boss 52 having fitting projections 54 on an outer circumference thereof, and the impeller 57 having a recessed groove 58 in which the fitting projections 54 of the boss 52 can be fitted in the axial direction of the drive shaft 21.
Inventors:
ISAYAMA KAZUHIRO
Application Number:
JP2001306541A
Publication Date:
April 09, 2003
Filing Date:
October 02, 2001
Export Citation:
Assignee:
MARUYAMA MFG CO
International Classes:
F04D5/00; (IPC1-7): F04D5/00
Attorney, Agent or Firm:
Mitsuo Kuribayashi