Title:
SELF-PRIMING PUMP
Document Type and Number:
Japanese Patent JP2002089478
Kind Code:
A
Abstract:
To provide a self-priming pump allowing simplification of a structure to reduce the number of components, and allowing reduction of a noise.
In this self-priming pump rotating an impeller by a driving motor to circulate a liquid in a pump chamber, a partition wall is formed between the impeller and the peripheral wall of the pump chamber, a channel allowing circulation of self-priming circulation water is formed between the peripheral wall of the pump chamber and the partition wall, and the partition wall is formed with a circulation port.
Inventors:
KISHIMOTO KOICHI
TANIFUJI ATSUO
TANIFUJI ATSUO
Application Number:
JP2000273632A
Publication Date:
March 27, 2002
Filing Date:
September 08, 2000
Export Citation:
Assignee:
NIDEC SHIBAURA CORP
International Classes:
F04D9/02; F04D29/42; F04D29/66; (IPC1-7): F04D9/02; F04D29/42; F04D29/66
Domestic Patent References:
| JPS42736B1 | ||||
| JPS48104103A | 1973-12-27 | |||
| JPS2912470Y1 |
Attorney, Agent or Firm:
Hitoko Tsuda (3 others)