JPS5593994A - Pump - Google Patents
PumpInfo
- Publication number
- JPS5593994A JPS5593994A JP131379A JP131379A JPS5593994A JP S5593994 A JPS5593994 A JP S5593994A JP 131379 A JP131379 A JP 131379A JP 131379 A JP131379 A JP 131379A JP S5593994 A JPS5593994 A JP S5593994A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- accumulator
- regulating valve
- chamber
- upstream
- 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
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To maintain the fluid pressure of an accumulator within a fixed range by sealing a gas pressurized above the atmospheric pressure in one of the chambers of an accumulator and introducing the liquid in the upstream of a pressure regulating valve for maintaining constant output pressure of the pump to the other chamber of the accumulator.
CONSTITUTION: When the pressure in a centrifugal pump 8 is lowered below a set pressure as a faucet 16 is opened, a pressure regulating valve 20 closes and a pressure switch 18 is closed to raise the pressure. When the pressure in the centrifugal pump 8 is raised above a set pressure, pressure regulating valve 12 opens and the pressure switch 18 is opened, while the pressure in a liquid chamber 28 is maintained above the pressure of the gas sealed in a pressure chamber 26 as the liquid chamber 28 of the accumulator 20 is connected to the upstream of the pressure regulating valve 12. Accordingly, a diaphragm 24 in the pressure accumulator 20 is maintained at a position between positions (B) and (C), thus reducing the amplitude of the diaphragm relative to the conventional device so that the life time of the disphragm 24 is remarkably extended.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP131379A JPS5593994A (en) | 1979-01-12 | 1979-01-12 | Pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP131379A JPS5593994A (en) | 1979-01-12 | 1979-01-12 | Pump |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5593994A true JPS5593994A (en) | 1980-07-16 |
JPS6228320B2 JPS6228320B2 (en) | 1987-06-19 |
Family
ID=11498003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP131379A Granted JPS5593994A (en) | 1979-01-12 | 1979-01-12 | Pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5593994A (en) |
-
1979
- 1979-01-12 JP JP131379A patent/JPS5593994A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6228320B2 (en) | 1987-06-19 |
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