Title:
CONTROL DEVICE AND CONTROL METHOD OF PUMP DEVICE
Document Type and Number:
Japanese Patent JP2009052403
Kind Code:
A
Abstract:
To provide a control device of a pump device capable of appropriately controlling a motor of a pump in response to the opening/closing states of a valve.
When a certain pressure is continued in a water supply side pressure at lower than a stop pressure value, the control device stores the rotation speed of a motor 14, decelerates the motor 14 during a set period T2 from the stored time, detects the water supply side pressure after the set period T2 elapses and determines the opening/closing states of a valve 18 therefrom.
Inventors:
MIYAMOTO MASAHIRO
NISHINO AKIHIRO
NISHINO AKIHIRO
Application Number:
JP2007216936A
Publication Date:
March 12, 2009
Filing Date:
August 23, 2007
Export Citation:
Assignee:
NIDEC SHIBAURA CORP
International Classes:
F04D15/02; F04B23/02; F04B49/00; F04D15/00
Attorney, Agent or Firm:
Tamako Tsutada
Masato Tsuda
Tetsuji Nakamura
Katsuyuki Tomita
Masato Tsuda
Tetsuji Nakamura
Katsuyuki Tomita