JPS5683594A - Rotary casing type liquid sealed rotary pump - Google Patents
Rotary casing type liquid sealed rotary pumpInfo
- Publication number
- JPS5683594A JPS5683594A JP16087479A JP16087479A JPS5683594A JP S5683594 A JPS5683594 A JP S5683594A JP 16087479 A JP16087479 A JP 16087479A JP 16087479 A JP16087479 A JP 16087479A JP S5683594 A JPS5683594 A JP S5683594A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- space
- pump
- pressure
- impeller
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To keep the shaft power of an impeller at a necessary minimum level, by providing check valves which are seated in their valve seats by their own weight when the pump is not in operation, and thereby controlling the gas pressure such that it may not become higher than the discharge pressure of the pump or lower than a necessary level.
CONSTITUTION: As an impeller 4 is rotated, a space S1 is shifted to S2, S3 and so on, successively. At the position of the spaces S2, S3, pressure of the gas that has been enclosed in space S1 is raised gradually. In a space S5, for instance, a valve body 8a of a check valve 8 is urged by the gas pressure and discharges a portion of the gas in space S5 toward an outlet port 9. Similarly, gas is released to the outside from check valves 8', 8", successively. Thus, gas is released to the outside successively from check valves 8, 8', 8" and so on, the valve body 8a of which is fitted in its valve seat 8b only by its own weight, so that it is prevented that the gas pressure becomes excessively higher than the discharge pressure of the pum or lower than the necessary level. Therefore, the shaft power of the impeller shaft 6 can be kept at a necessary minimum level.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16087479A JPS5683594A (en) | 1979-12-13 | 1979-12-13 | Rotary casing type liquid sealed rotary pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16087479A JPS5683594A (en) | 1979-12-13 | 1979-12-13 | Rotary casing type liquid sealed rotary pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5683594A true JPS5683594A (en) | 1981-07-08 |
Family
ID=15724228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16087479A Pending JPS5683594A (en) | 1979-12-13 | 1979-12-13 | Rotary casing type liquid sealed rotary pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5683594A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04269390A (en) * | 1990-12-28 | 1992-09-25 | Nash Eng Co:The | Liquid ring pump having protrusion liner with end wall part |
-
1979
- 1979-12-13 JP JP16087479A patent/JPS5683594A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04269390A (en) * | 1990-12-28 | 1992-09-25 | Nash Eng Co:The | Liquid ring pump having protrusion liner with end wall part |
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