Title:
CONTROL UNIT FOR SELF-PRIMING PUMP
Document Type and Number:
Japanese Patent JP2002005074
Kind Code:
A
Abstract:
To provide a control unit for a self-priming pump which can attain excellent self-priming characteristics in self-priming running.
A self-priming pump having a variable speed motor as a driving source comprises a rotational speed detecting means 21 for detecting a rotational speed of a motor, and a control unit 22 for controlling the variable speed motor so as to rotate the motor at a predetermined constant rotational speed N during self-priming period by receiving the signal output from the rotational speed detecting means 21. Thus, a self-priming pump showing excellent self-priming characteristics during the self-priming period can be obtained.
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Inventors:
HARAKAWA ATSUSHI
SHIMOMURA SHINSUKE
SHUKURI YOICHI
SHIMOMURA SHINSUKE
SHUKURI YOICHI
Application Number:
JP2000192272A
Publication Date:
January 09, 2002
Filing Date:
June 27, 2000
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F04D15/00; F04B49/00; F04D9/02; (IPC1-7): F04D15/00; F04B49/00; F04D9/02
Domestic Patent References:
| JPH01294993A | 1989-11-28 | |||
| JPH09209969A | 1997-08-12 | |||
| JPS5932686A | 1984-02-22 | |||
| JPS62184189U | 1987-11-21 | |||
| JPS61204992U | 1986-12-24 | |||
| JPS63314393A | 1988-12-22 | |||
| JPH11201085A | 1999-07-27 | |||
| JPH09303284A | 1997-11-25 | |||
| JPS63302198A | 1988-12-09 | |||
| JPH08196592A | 1996-08-06 |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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