GB535738A - Improvements in or relating to pumps - Google Patents
Improvements in or relating to pumpsInfo
- Publication number
- GB535738A GB535738A GB28105/39A GB2810539A GB535738A GB 535738 A GB535738 A GB 535738A GB 28105/39 A GB28105/39 A GB 28105/39A GB 2810539 A GB2810539 A GB 2810539A GB 535738 A GB535738 A GB 535738A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pump
- pipe
- delivery
- pumps
- 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
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
- F04D1/10—Multi-stage pumps with means for changing the flow-path through the stages, e.g. series-parallel, e.g. side loads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
535,738. Rotary pumps. SULZER FRERES SOC. ANON. Oct. 18, 1939, No. 28105. Convention date, Dec 24, 1938. [Class 110 (i)] A pumping plant comprises two. or more centrifugal &c, pumps 2, 3, Fig. 1, driven by a motor 1, the delivery of pump 2 communicating by pipe 5 with the inlet of pump 3 and also by pipe 6 and valve 8 with the main delivery pipe 7, so that against a low head they work in parallel. When the pressure in pipe 7 reaches a certain value valve 8 closes and throws the whole output of pump 2 into the inlet of pump 3, so that two pumps operate in series. In the form shown in Fig. 3, valve 14 between the delivery ends of a pump 10 and the pipe 7 is coupled by a lever 15 to a secondary valve 16 on the delivery side of a second pump 11, so that when valve 14 closes, valve 16 opens and vice versa. The valve 17 controlling the delivery of pump 11 to pipe 7 is coupled by a lever 21 to a secondary valve 22 on the delivery side of a third pump 12, so that when valve 17 closes, valve 22 opens, and vice versa.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH535738X | 1938-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB535738A true GB535738A (en) | 1941-04-21 |
Family
ID=4518756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28105/39A Expired GB535738A (en) | 1938-12-24 | 1939-10-18 | Improvements in or relating to pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB535738A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4850806A (en) * | 1988-05-24 | 1989-07-25 | The Boc Group, Inc. | Controlled by-pass for a booster pump |
| CN106500393A (en) * | 2016-11-10 | 2017-03-15 | 青岛海尔中央空调有限公司 | There is the multi-connected machine heat pump of three-level centrifugal compressor |
-
1939
- 1939-10-18 GB GB28105/39A patent/GB535738A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4850806A (en) * | 1988-05-24 | 1989-07-25 | The Boc Group, Inc. | Controlled by-pass for a booster pump |
| CN106500393A (en) * | 2016-11-10 | 2017-03-15 | 青岛海尔中央空调有限公司 | There is the multi-connected machine heat pump of three-level centrifugal compressor |
| CN106500393B (en) * | 2016-11-10 | 2023-09-29 | 青岛海尔中央空调有限公司 | Multi-split heat pump system with three-stage centrifugal compressor |
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