Title:
METERING PUMP DEVICE
Document Type and Number:
Japanese Patent JP2009264152
Kind Code:
A
Abstract:
To maintain high accuracy of a metering pump without revising a correction coefficient when changing a target flow rate or when changing flow rate time.
A pump flow rate control means for controlling a rotation positive displacement pump 1 having a stator 3 and a rotor 4 to a predetermined flow rate includes a storage means 23 for storing relational data between stator temperature and a flow rate per one rotation of the rotor and with a stator temperature detection means. The relational data corresponding to the stator temperature detected by the stator temperature detection means is read from the storage means, and rotational frequency of the rotor is controlled to rotor rotational frequency corresponding to a target flow rate per time.
Inventors:
FUKUMARU KENICHIRO
YUMINO AKITOSHI
KUSHI TATSUYA
MIYAZAKI YASUNORI
YUMINO AKITOSHI
KUSHI TATSUYA
MIYAZAKI YASUNORI
Application Number:
JP2008112098A
Publication Date:
November 12, 2009
Filing Date:
April 23, 2008
Export Citation:
Assignee:
TOYOTA MOTOR CORP
RIX CORP
HEISHIN ENG & EQUIPMENT CO LTD
RIX CORP
HEISHIN ENG & EQUIPMENT CO LTD
International Classes:
F04C14/08; F04C2/107; F04C13/00
Domestic Patent References:
| JP2006307672A | 2006-11-09 |
Attorney, Agent or Firm:
Patent Business Corporation Cosmos Patent Office