GB877878A - Improvements in or relating to centrifugal pumps - Google Patents
Improvements in or relating to centrifugal pumpsInfo
- Publication number
- GB877878A GB877878A GB1770658A GB1770658A GB877878A GB 877878 A GB877878 A GB 877878A GB 1770658 A GB1770658 A GB 1770658A GB 1770658 A GB1770658 A GB 1770658A GB 877878 A GB877878 A GB 877878A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reservoir
- impeller
- liquid
- pump
- port
- 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
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2277—Rotors specially for centrifugal pumps with special measures for increasing NPSH or dealing with liquids near boiling-point
-
- 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
- F04D9/02—Self-priming pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
877,878. Centrifugal pumps. GIRDLESTONE PUMPS Ltd. May 28, 1959 [June 3, 1958], No. 17706/58. Class 110 (1). In a self-priming centrifugal pump 1 having an impeller chamber 6 formed integrally with a coaxially disposed impeller bearing housing 7 of less radial dimension, an integral reservoir 9 for priming liquid is located at least in part beneath the said bearing housing and a port 13 is arranged to afford communication between the impeller chamber and the reservoir so that during priming liquid is directed on to the periphery of the impeller which is provided with a series of interruptions or irregularities 15 to increase turbulence on priming. The reservoir 9 extends upwardly as at 9a around the portion 6a of the impeller chamber 6 and, is connected to the impeller chamber by the port 13. In operation, liquid is drawn from the reservoir 9 through port 13 and is expelled by the impeller through upper port 12 back to the reservoir. Thus air is removed from the impeller chamber, creating a suction which draws liquid, from inlet 5, to the pump which then functions normally. When the pump is stopped sufficient liquid is retained in the reservoir to prime the pump when next started.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1770658A GB877878A (en) | 1958-06-03 | 1958-06-03 | Improvements in or relating to centrifugal pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1770658A GB877878A (en) | 1958-06-03 | 1958-06-03 | Improvements in or relating to centrifugal pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB877878A true GB877878A (en) | 1961-09-20 |
Family
ID=10099780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1770658A Expired GB877878A (en) | 1958-06-03 | 1958-06-03 | Improvements in or relating to centrifugal pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB877878A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3401640A (en) * | 1965-12-03 | 1968-09-17 | Newage Lyon Ltd | Centrifugal pumps |
US3746467A (en) * | 1971-08-24 | 1973-07-17 | Ingersoll Rand Co | Toothed shroud centrifugal impeller |
US4944653A (en) * | 1988-03-24 | 1990-07-31 | Jacuzzi, Inc. | Plastic centrifugal pump |
EP1348871A1 (en) * | 2002-03-27 | 2003-10-01 | Pompes Salmson | Low flow centrifugal pump with increased suction height |
WO2017034693A1 (en) * | 2015-08-24 | 2017-03-02 | Woodward, Inc. | Centrifugal pump with serrated impeller |
-
1958
- 1958-06-03 GB GB1770658A patent/GB877878A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3401640A (en) * | 1965-12-03 | 1968-09-17 | Newage Lyon Ltd | Centrifugal pumps |
US3746467A (en) * | 1971-08-24 | 1973-07-17 | Ingersoll Rand Co | Toothed shroud centrifugal impeller |
US4944653A (en) * | 1988-03-24 | 1990-07-31 | Jacuzzi, Inc. | Plastic centrifugal pump |
EP1348871A1 (en) * | 2002-03-27 | 2003-10-01 | Pompes Salmson | Low flow centrifugal pump with increased suction height |
FR2837880A1 (en) * | 2002-03-27 | 2003-10-03 | Pompes Salmson Sa | PUMP FOR LOW FLOW AND LARGE SUCTION HEIGHT |
WO2017034693A1 (en) * | 2015-08-24 | 2017-03-02 | Woodward, Inc. | Centrifugal pump with serrated impeller |
US20170058911A1 (en) * | 2015-08-24 | 2017-03-02 | Woodward, Inc. | Centrifugal pump with serrated impeller |
US10907647B2 (en) | 2015-08-24 | 2021-02-02 | Woodward, Inc. | Centrifugal pump with serrated impeller |
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