GB1145284A - Liquid displacement rotary pumps - Google Patents
Liquid displacement rotary pumpsInfo
- Publication number
- GB1145284A GB1145284A GB2252765A GB2252765A GB1145284A GB 1145284 A GB1145284 A GB 1145284A GB 2252765 A GB2252765 A GB 2252765A GB 2252765 A GB2252765 A GB 2252765A GB 1145284 A GB1145284 A GB 1145284A
- Authority
- GB
- United Kingdom
- Prior art keywords
- passage
- piston
- manually
- division
- flow
- 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
- F04D15/0027—Varying behaviour or the very pump
- F04D15/0033—By-passing by increasing clearance between impeller and its casing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
1,145,284. Regulating fluid-now; fluidpressure servomotor systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug.22, 1966 [May 27, 1965; Dec. 9, 1965], Nos.22527/65 and 52218/65. Headings G3H and G3P. [Also in Division F1] The volume of the pumping chamber of the second stage of a two-stage centrifugal pump (see Division F1), is varied by an annular piston 19, Fig. 2, in accordance with the pump discharge pressure communicated through passages 21, 23 to the underside of the piston. The effect of the pressure on the piston is modified by a variable bleed valve 26 controlled by manual or automatic means. Alternatively, the passage 21 communicates with a hollow lever 33, Fig.4, manually or automatically pivotable about the axis of the passage to proportion the flow discharging therefrom between the passage 23 and a drain 39. In a further alternative, Fig. 3 (not shown), the passage (21) terminates in a discharge nozzle (27) aligned with an inlet nozzle (28) of the passage (23), and a knife-edged member (29) is manually or automatically movable transversely through the flow between the nozzles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2252765A GB1145284A (en) | 1965-05-27 | 1965-05-27 | Liquid displacement rotary pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2252765A GB1145284A (en) | 1965-05-27 | 1965-05-27 | Liquid displacement rotary pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1145284A true GB1145284A (en) | 1969-03-12 |
Family
ID=10180817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2252765A Expired GB1145284A (en) | 1965-05-27 | 1965-05-27 | Liquid displacement rotary pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1145284A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2861815A1 (en) * | 2003-11-04 | 2005-05-06 | Ksb Sas | Motor pump unit for lift pump, has coil and magnet to move shaft between upper and lower positions, and detector to provide signal if delivery pipe pressure exceeds threshold value to control coil and magnet |
-
1965
- 1965-05-27 GB GB2252765A patent/GB1145284A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2861815A1 (en) * | 2003-11-04 | 2005-05-06 | Ksb Sas | Motor pump unit for lift pump, has coil and magnet to move shaft between upper and lower positions, and detector to provide signal if delivery pipe pressure exceeds threshold value to control coil and magnet |
| EP1529961A1 (en) * | 2003-11-04 | 2005-05-11 | Ksb S.A.S | Motor pump unit with axially shiftable rotor |
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