WO2008096731A1 - Pump - Google Patents
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- Publication number
- WO2008096731A1 WO2008096731A1 PCT/JP2008/051823 JP2008051823W WO2008096731A1 WO 2008096731 A1 WO2008096731 A1 WO 2008096731A1 JP 2008051823 W JP2008051823 W JP 2008051823W WO 2008096731 A1 WO2008096731 A1 WO 2008096731A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flow rate
- control
- flowmeter
- current value
- exhaust flow
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
[PROBLEMS] To provide a reliable pump which can control a flow rate with a simple structure at a reasonable cost. [MEANS FOR SOLVING PROBLEMS] By referencing a current value-exhaust flow rate relationship (4000 rpm) (64) stored in a judgment reference storage unit (6), an exhaust flow rate is calculated from a detected current value obtained by a current value detection unit (3). A flow rate judging unit (53) judges whether the obtained exhaust flow rate is a predetermined set flow rate (10L/min). According to the result of the judgment, the rpm of a motor is controlled so as to control the exhaust flow rate. Accordingly, there is no need of expensive parts such as a flowmeter or a pressure detector which have been conventionally required. Thus, it is possible to control a flow rate with a simple structure at a reasonable cost. Furthermore, since no flowmeter or no pressure detector is used, there is no danger of a pump failure caused by clogging of a flowmeter or a pressure detector with foreign matters. That is, it is possible to perform a highly reliable flow rate control.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007025094A JP2008190401A (en) | 2007-02-05 | 2007-02-05 | Pump |
JP2007-025094 | 2007-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008096731A1 true WO2008096731A1 (en) | 2008-08-14 |
Family
ID=39681640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/051823 WO2008096731A1 (en) | 2007-02-05 | 2008-02-05 | Pump |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2008190401A (en) |
WO (1) | WO2008096731A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015144310A1 (en) * | 2014-03-26 | 2015-10-01 | Wilo Se | Method for determining the hydraulic operating point of a pump assembly |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5491657B1 (en) * | 2013-05-11 | 2014-05-14 | 株式会社マツサカエンジニアリング | Pump device |
JP7293712B2 (en) * | 2019-02-22 | 2023-06-20 | Toto株式会社 | flush toilet device |
JP7270897B2 (en) * | 2019-02-22 | 2023-05-11 | Toto株式会社 | flush toilet device |
JP7421727B2 (en) * | 2020-02-28 | 2024-01-25 | Toto株式会社 | Flush toilet device |
JP7421728B2 (en) * | 2020-02-28 | 2024-01-25 | Toto株式会社 | Flush toilet device |
JP2021134603A (en) * | 2020-02-28 | 2021-09-13 | Toto株式会社 | Water toilet bowl device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08270595A (en) * | 1995-04-03 | 1996-10-15 | Ntn Corp | Magnetic levitation pump |
JPH1176394A (en) * | 1997-09-05 | 1999-03-23 | Terumo Corp | Centrifugal liquid pumping device |
JP2003021091A (en) * | 2001-07-03 | 2003-01-24 | Nikkiso Co Ltd | Flow control device of centrifugal pump |
JP2003062065A (en) * | 2001-08-29 | 2003-03-04 | Senko Medical Instr Mfg Co Ltd | Device for driving centrifugal pump |
-
2007
- 2007-02-05 JP JP2007025094A patent/JP2008190401A/en active Pending
-
2008
- 2008-02-05 WO PCT/JP2008/051823 patent/WO2008096731A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08270595A (en) * | 1995-04-03 | 1996-10-15 | Ntn Corp | Magnetic levitation pump |
JPH1176394A (en) * | 1997-09-05 | 1999-03-23 | Terumo Corp | Centrifugal liquid pumping device |
JP2003021091A (en) * | 2001-07-03 | 2003-01-24 | Nikkiso Co Ltd | Flow control device of centrifugal pump |
JP2003062065A (en) * | 2001-08-29 | 2003-03-04 | Senko Medical Instr Mfg Co Ltd | Device for driving centrifugal pump |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015144310A1 (en) * | 2014-03-26 | 2015-10-01 | Wilo Se | Method for determining the hydraulic operating point of a pump assembly |
US10184476B2 (en) | 2014-03-26 | 2019-01-22 | Wilo Se | Method of determining hydraulic operating point of a pump |
Also Published As
Publication number | Publication date |
---|---|
JP2008190401A (en) | 2008-08-21 |
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