JPS5440301A - Device for automatically operating pump - Google Patents
Device for automatically operating pumpInfo
- Publication number
- JPS5440301A JPS5440301A JP10826277A JP10826277A JPS5440301A JP S5440301 A JPS5440301 A JP S5440301A JP 10826277 A JP10826277 A JP 10826277A JP 10826277 A JP10826277 A JP 10826277A JP S5440301 A JPS5440301 A JP S5440301A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- pump
- faucet
- pressure
- flow rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To start a pump simultaneously with the opening of a faucet, miniaturize or eliminate a pressure tank, allow for continuous run even at a very low flow rate and improve the reliability of the pump.
CONSTITUTION: Since the pressure difference (P1-P2) between the front and rear of a resistance valve 11 is large when the degree of opening of the faucet 4 is large and the flow rate is high, a differential pressure diaphragm 12 compresses a spring 12' and is in lower position. Therefore, the distance between a magnet 15 and a reed switch 13 is large and the switch 13 is turned on. At that time, the pump is operated. When the degree of opening of the faucet 4 is reduced and the flow rate Q is approximate to zero, the pressure difference is eliminated and the differential pressure diaphragm 12 rises. Then, the diaphragm turns off the reed switch 13 and the pump is stopped. When the faucet 4 is opened in that state, the discharge pressure drops and a pressure receiving diaphragm 16 descends. Then, the diaphragm 16 pulles down the differential pressure diaphragm 12 through a lever 17, the reed switch 13 is turned on and the pump 1 is started
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10826277A JPS5917278B2 (en) | 1977-09-05 | 1977-09-05 | Pump automatic operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10826277A JPS5917278B2 (en) | 1977-09-05 | 1977-09-05 | Pump automatic operation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5440301A true JPS5440301A (en) | 1979-03-29 |
| JPS5917278B2 JPS5917278B2 (en) | 1984-04-20 |
Family
ID=14480184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10826277A Expired JPS5917278B2 (en) | 1977-09-05 | 1977-09-05 | Pump automatic operation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5917278B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844494U (en) * | 1981-09-19 | 1983-03-25 | 有光工業株式会社 | Pump operation control device |
| US4482936A (en) * | 1982-03-31 | 1984-11-13 | Mitsubishi Denki Kabushiki Kaisha | Drawer type enclosed switchboard with automatic grounding device |
| JPH01121577A (en) * | 1987-11-05 | 1989-05-15 | Shibaura Eng Works Co Ltd | Flow control pump unit |
| JPH02136583A (en) * | 1988-11-14 | 1990-05-25 | Matsushita Electric Ind Co Ltd | Electric pump |
-
1977
- 1977-09-05 JP JP10826277A patent/JPS5917278B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5844494U (en) * | 1981-09-19 | 1983-03-25 | 有光工業株式会社 | Pump operation control device |
| US4482936A (en) * | 1982-03-31 | 1984-11-13 | Mitsubishi Denki Kabushiki Kaisha | Drawer type enclosed switchboard with automatic grounding device |
| JPH01121577A (en) * | 1987-11-05 | 1989-05-15 | Shibaura Eng Works Co Ltd | Flow control pump unit |
| JPH02136583A (en) * | 1988-11-14 | 1990-05-25 | Matsushita Electric Ind Co Ltd | Electric pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5917278B2 (en) | 1984-04-20 |
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