GB262920A - Improvements in and connected with pumps - Google Patents
Improvements in and connected with pumpsInfo
- Publication number
- GB262920A GB262920A GB3021225A GB3021225A GB262920A GB 262920 A GB262920 A GB 262920A GB 3021225 A GB3021225 A GB 3021225A GB 3021225 A GB3021225 A GB 3021225A GB 262920 A GB262920 A GB 262920A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- pump
- valve
- piston
- delivery
- 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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
- F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
262,920. Walker, J. R. Nov. 30, 1925. Regulating or controlling.-The discharge pressure of a centrifugal pump 1 is maintained constant or regulated at will by the introduction of a small quantity of fluid under high pressure into the inlet of the pump. The nozzle 5 of a manually adjusted needle valve 6 is so disposed that the jet from it exercises an injector action on, the water in the suction main 3, thereby increasing its pressure and the pressure on the delivery side. The casing 8 contains a piston valve 7 urged into open position by a spring 9; the piston has a head 10 beneath which are ports 10<1> communicating with a conduit through the stem. A pipe 13 connects the pump discharge 4 and the casing 8. With the valve 7 at its maximum opening as shown and the needle valve 6 withdrawn to its limit, the maximum flow occurs from the pressure side 4 of the pump to the nozzle 5. An increase, in delivery pressure depresses the piston 7, partially shrouds the ports 10<1> and diminishes the flow to the nozzle 5, thus acting to keep the delivery pressure constant. In a modification the controlling valve 17, Fig. 2, is of the double beat type with branches 15, 16 connected to the delivery and suction sides of the pump. The valve spindle 18 carries at its upper end a piston 21 in a cylinder open at the top to the atmosphere. The pump delivery side is connected to the pipe 24 and the pressure acts against the spring 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3021225A GB262920A (en) | 1925-11-30 | 1925-11-30 | Improvements in and connected with pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3021225A GB262920A (en) | 1925-11-30 | 1925-11-30 | Improvements in and connected with pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB262920A true GB262920A (en) | 1926-12-23 |
Family
ID=10304051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3021225A Expired GB262920A (en) | 1925-11-30 | 1925-11-30 | Improvements in and connected with pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB262920A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2545278A (en) * | 1948-01-28 | 1951-03-13 | Cornelius R Head | Line cleaner |
| US2853013A (en) * | 1954-12-24 | 1958-09-23 | Tait Mfg Co The | Pumps |
| US3490377A (en) * | 1967-08-23 | 1970-01-20 | Bosch Gmbh Robert | Pump |
| US4362474A (en) * | 1979-12-20 | 1982-12-07 | United Technologies Corp. | Centrifugal fuel pump with automatically switched jet injection |
| GB2135022A (en) * | 1983-02-14 | 1984-08-22 | Stephen Walker Tebby | Improvements in or relating to impeller pumps particularly for fire fighting |
| CN103075352A (en) * | 2013-02-05 | 2013-05-01 | 王耀洲 | Regulating device and regulating method for widening use range of pump |
-
1925
- 1925-11-30 GB GB3021225A patent/GB262920A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2545278A (en) * | 1948-01-28 | 1951-03-13 | Cornelius R Head | Line cleaner |
| US2853013A (en) * | 1954-12-24 | 1958-09-23 | Tait Mfg Co The | Pumps |
| US3490377A (en) * | 1967-08-23 | 1970-01-20 | Bosch Gmbh Robert | Pump |
| US4362474A (en) * | 1979-12-20 | 1982-12-07 | United Technologies Corp. | Centrifugal fuel pump with automatically switched jet injection |
| GB2135022A (en) * | 1983-02-14 | 1984-08-22 | Stephen Walker Tebby | Improvements in or relating to impeller pumps particularly for fire fighting |
| CN103075352A (en) * | 2013-02-05 | 2013-05-01 | 王耀洲 | Regulating device and regulating method for widening use range of pump |
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