GB757486A - Improvements in or relating to the pumping of liquids and centrifugal pumps therefor - Google Patents
Improvements in or relating to the pumping of liquids and centrifugal pumps thereforInfo
- Publication number
- GB757486A GB757486A GB3029252A GB3029252A GB757486A GB 757486 A GB757486 A GB 757486A GB 3029252 A GB3029252 A GB 3029252A GB 3029252 A GB3029252 A GB 3029252A GB 757486 A GB757486 A GB 757486A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- chamber
- clearance
- pump
- unshrouded
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
757,486. Centrifugal pumps. MURRAY, W. Feb. 26, 1954 [Nov. 28, 1952], No. 30292/52. Class 110(1) A single-stage centrifugal pump adapted to operate at more than 4,000 revolutions per minute, with a blade tip velocity of at least 25 metres per second, comprises an unshrouded impeller operating in a chamber of non- volute construction which is provided with one or more tangential discharge ducts, the clearance between the sides of the blades and the end walls of the chamber being smaller than the clearance between the blade tips and the peripheral wall of the chamber. The impeller comprises six unshrouded radial blades e, the spaces between the blades being open at both sides. The running clearance between the edges of the blades e and the walls of the pump casing a are kept small, i.e., of the order of 0.020 inch, and labyrinth seals or wearing rings are dispensed with. The contents of the pump as a whole are set in rotation at the high operating speed, and this prevents a return flow through the narrow running clearances. Two cylindrical or conical discharge ducts (not shown) are arranged tangentially to the outer wall of the casing at an angular spacing of about 90 degrees. Alternatively, a single discharge duct may be provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3029252A GB757486A (en) | 1952-11-28 | 1952-11-28 | Improvements in or relating to the pumping of liquids and centrifugal pumps therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3029252A GB757486A (en) | 1952-11-28 | 1952-11-28 | Improvements in or relating to the pumping of liquids and centrifugal pumps therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB757486A true GB757486A (en) | 1956-09-19 |
Family
ID=10305321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3029252A Expired GB757486A (en) | 1952-11-28 | 1952-11-28 | Improvements in or relating to the pumping of liquids and centrifugal pumps therefor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB757486A (en) |
-
1952
- 1952-11-28 GB GB3029252A patent/GB757486A/en not_active Expired
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