JPS5540281A - Pump of constant discharge pressure - Google Patents
Pump of constant discharge pressureInfo
- Publication number
- JPS5540281A JPS5540281A JP6827079A JP6827079A JPS5540281A JP S5540281 A JPS5540281 A JP S5540281A JP 6827079 A JP6827079 A JP 6827079A JP 6827079 A JP6827079 A JP 6827079A JP S5540281 A JPS5540281 A JP S5540281A
- Authority
- JP
- Japan
- Prior art keywords
- discharge pressure
- pressure
- main shaft
- discharge
- piston
- 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.)
- Pending
Links
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To keep the discharge pressure of a pump constant, by securing a piston on one end of a main shaft whereon impellers are fixed, applying pressure equal to the discharge pressure to one face of the piston and applying pressure equal to a desired discharge level to the other face of the piston.
CONSTITUTION: The main shaft 1 whereon the imellers 5, 6 are fixed are supported so that main shaft cah slide rightward from such a state that the distance (a) between the blades 11, 12 of the impellers 5, 6 is minimum. The piston 9 is secured on one end of the main shaft 1. The pressure equal to the discharge pressure is applied to one chamber 39 of a cylinder 8 through a diaphragm 122. The pressure equalized to the desired discharge level by a constant pressure valve 51 is applied to another chamber 40 of the cylinder 8 through a diaphragm 123. When the discharge pressure rises, the main shaft 1 moves rightward and the distance (a) increases to reduce the discharge pressure. When the discharge pressure falls, the main shaft 1 moves leftward and the distance (a) decreases to raise the discharge pressure. The discharge pressure is thus kept constant.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6827079A JPS5540281A (en) | 1979-05-31 | 1979-05-31 | Pump of constant discharge pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6827079A JPS5540281A (en) | 1979-05-31 | 1979-05-31 | Pump of constant discharge pressure |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5121178A Division JPS54142603A (en) | 1978-04-27 | 1978-04-27 | Constant discharge pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5540281A true JPS5540281A (en) | 1980-03-21 |
Family
ID=13368886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6827079A Pending JPS5540281A (en) | 1979-05-31 | 1979-05-31 | Pump of constant discharge pressure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5540281A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4846902A (en) * | 1971-10-14 | 1973-07-04 | ||
| JPS4919281A (en) * | 1972-04-17 | 1974-02-20 |
-
1979
- 1979-05-31 JP JP6827079A patent/JPS5540281A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4846902A (en) * | 1971-10-14 | 1973-07-04 | ||
| JPS4919281A (en) * | 1972-04-17 | 1974-02-20 |
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