GB886248A - Improvements in or relating to centrifugal pumps - Google Patents
Improvements in or relating to centrifugal pumpsInfo
- Publication number
- GB886248A GB886248A GB1583558A GB1583558A GB886248A GB 886248 A GB886248 A GB 886248A GB 1583558 A GB1583558 A GB 1583558A GB 1583558 A GB1583558 A GB 1583558A GB 886248 A GB886248 A GB 886248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- back plate
- orifices
- impeller
- blade
- 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
- F04D9/001—Preventing vapour lock
- F04D9/002—Preventing vapour lock by means in the very pump
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
886,248. Centrifugal pumps. EDWARDS, M. L. May 16, 1958, No. 15835/58. Class 110 (1). In an impeller for a centrifugal pump comprising blades projecting from a back plate, the back plate is shaped to provide orifices on the trailing sides of the blades and to allow liquid at the leading sides of the blades to flow past the orifices to entrain vapour or gas through the orifices from between the blades, portions of the back plate extending from leading edges of the blades to points on the blades adjacent the orifices. In the submersible centrifugal fuel pump shown in Fig. 1, the impeller back plate 52 is cut away as shown in Fig. 3 to form projections 53 adjacent each impeller blade. Preferably, a kink 62 is provided in each impeller blade, fading out towards the bottom edge of the blade. The inlet portion of each impeller blade between the leading edge 51 and the kink 62 is shaped to provide an axial component of motion towards the back plate 52. A jet of liquid passes upwardly along the pressure face 60 of each impeller blade at the kink 62 and through the adjacent cut-away part of the back plate 52 towards a stationary diffuser 40, thereby exerting an ejector effect at an orifice 64 to entrain and remove gas or vapour accumulating at the opposite face 61 of the blade. After passing through the diffuser 40, the mixture of liquid and gas or vapour escapes into the fuel tank 11.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1583558A GB886248A (en) | 1958-05-16 | 1958-05-16 | Improvements in or relating to centrifugal pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1583558A GB886248A (en) | 1958-05-16 | 1958-05-16 | Improvements in or relating to centrifugal pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB886248A true GB886248A (en) | 1962-01-03 |
Family
ID=10066390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1583558A Expired GB886248A (en) | 1958-05-16 | 1958-05-16 | Improvements in or relating to centrifugal pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB886248A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3227089A (en) * | 1963-04-23 | 1966-01-04 | Philips Corp | Centrifugal pump |
-
1958
- 1958-05-16 GB GB1583558A patent/GB886248A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3227089A (en) * | 1963-04-23 | 1966-01-04 | Philips Corp | Centrifugal pump |
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