GB386232A - Improvements relating to self-priming centrifugal pumps - Google Patents
Improvements relating to self-priming centrifugal pumpsInfo
- Publication number
- GB386232A GB386232A GB18243/32A GB1824332A GB386232A GB 386232 A GB386232 A GB 386232A GB 18243/32 A GB18243/32 A GB 18243/32A GB 1824332 A GB1824332 A GB 1824332A GB 386232 A GB386232 A GB 386232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impeller
- water
- pump
- casing
- wall
- 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.)
- Expired
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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/004—Priming of not self-priming pumps
- F04D9/005—Priming of not self-priming pumps by adducting or recycling liquid
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
386,232. Centrifugal pumps. SCHULE, H. F. W. and GREVE, K. H., (trading as SCHULE & CO., F. W.), 16, Spitalerstrasse, Hamburg, Germany. June 28, 1932, No. 18243. Convention date, Oct. 22, 1931. [Class 110 (i).] A self-priming cen. trifugal pump has an impeller 7 in a casing 1 with a suction branch extending from the impeller eye 15 upwards to the top level of the casing. The wall of the casing closely follows the impeller circumference between the points 3, 10 so that at least one impeller channel is overlapped. The impeller projects into the discharge space so that a line 14 extended from the inner wall 6 of the delivery branch intersects the impeller as a chord. The arrangement of the suction branch enables water to be retained in the pump when it stops working. On the pump restarting, the water is thrown into the extended delivery space 2, 13 thus sealing the pump against the back flow of atmospheric air. The air pressure in the pump and the suction branch is consequently diminished. As the impeller blades travel up to the point 3, they collect water form the discharge chamber which partly fills the channels 11, 12 under the casing wall between the points 3, 10. After the blades pass the point 10 the water is thrown outwards and air is drawn in from the suction opening to escape through the water column in the delivery space 2. This action is repeated until water is drawn into the suction opening.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE386232X | 1931-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB386232A true GB386232A (en) | 1933-01-12 |
Family
ID=6370951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18243/32A Expired GB386232A (en) | 1931-10-22 | 1932-06-28 | Improvements relating to self-priming centrifugal pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB386232A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1127718B (en) * | 1960-08-09 | 1962-04-12 | Siemens Ag | Centrifugal pump, especially a drain pump |
| US3647314A (en) * | 1970-04-08 | 1972-03-07 | Gen Electric | Centrifugal pump |
| US4913620A (en) * | 1987-03-23 | 1990-04-03 | Attwood Corporation | Centrifugal water pump |
-
1932
- 1932-06-28 GB GB18243/32A patent/GB386232A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1127718B (en) * | 1960-08-09 | 1962-04-12 | Siemens Ag | Centrifugal pump, especially a drain pump |
| US3647314A (en) * | 1970-04-08 | 1972-03-07 | Gen Electric | Centrifugal pump |
| US4913620A (en) * | 1987-03-23 | 1990-04-03 | Attwood Corporation | Centrifugal water pump |
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