GB719248A - Self-priming centrifugal pumps - Google Patents
Self-priming centrifugal pumpsInfo
- Publication number
- GB719248A GB719248A GB9369/52A GB936952A GB719248A GB 719248 A GB719248 A GB 719248A GB 9369/52 A GB9369/52 A GB 9369/52A GB 936952 A GB936952 A GB 936952A GB 719248 A GB719248 A GB 719248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impeller
- auxiliary
- water
- pump
- volute
- 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
719,248. Centrifugal pumps. PULSOMETER ENGINEERING CO., Ltd., and PRICE, A. V. April 7, 1953 [April 15, 1952], No. 9369/52. Class 110(1) A self-priming centrifugal pump comprises an auxiliary impeller with an inlet which is separate from that of the main impeller and is arranged to be submerged in liquid, and communicating passages leading from the main impeller to the auxiliary impeller, the flow of liquid through the auxiliary impeller exerting an ejector effect to draw off air or other gases from the main impeller. The auxiliary impeller comprises vanes 26 formed on the rear wall 23 of the main impeller 22. Initially, the whole of the pump is filled with water. On rotation, the auxiliary impeller draws water from a reservoir 12 through a passage 16 and delivers it to a discharge volute 13. In passing the communicating passages 27, the liquid flowing through the auxiliary impeller exerts an ejector effect and draws water from the main impeller, together with any entrained air or gas, thereby priming the pump. The air or gas separates from the water in the volute 13 and passes to the delivery pipe, while the water passes from the top of the volute to the reservoir 12. When the pump is stopped, water will remain in the reservoir 12 at least up to the lowest discharge level of the volute 13, so that on subsequent operation of the pump the auxiliary impeller will automatically exert its priming function. The auxiliary impeller may be shrouded and may be arranged on the front wall instead of the back wall of the main impeller. Or, there may be auxiliary impellers on both walls.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9369/52A GB719248A (en) | 1952-04-15 | 1952-04-15 | Self-priming centrifugal pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9369/52A GB719248A (en) | 1952-04-15 | 1952-04-15 | Self-priming centrifugal pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB719248A true GB719248A (en) | 1954-12-01 |
Family
ID=9870637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9369/52A Expired GB719248A (en) | 1952-04-15 | 1952-04-15 | Self-priming centrifugal pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB719248A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2949859A (en) * | 1955-02-03 | 1960-08-23 | Albert J Granberg | Self-priming centrifugal pump assembly |
US3013501A (en) * | 1956-12-27 | 1961-12-19 | Skoglund & Olson Ab | Centrifugal impeller |
-
1952
- 1952-04-15 GB GB9369/52A patent/GB719248A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2949859A (en) * | 1955-02-03 | 1960-08-23 | Albert J Granberg | Self-priming centrifugal pump assembly |
US3013501A (en) * | 1956-12-27 | 1961-12-19 | Skoglund & Olson Ab | Centrifugal impeller |
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