EP0061159A3 - Reversible centrifugal pump with identical hydraulic performance either way - Google Patents
Reversible centrifugal pump with identical hydraulic performance either wayInfo
- Publication number
- EP0061159A3 EP0061159A3 EP82102236A EP82102236A EP0061159A3 EP 0061159 A3 EP0061159 A3 EP 0061159A3 EP 82102236 A EP82102236 A EP 82102236A EP 82102236 A EP82102236 A EP 82102236A EP 0061159 A3 EP0061159 A3 EP 0061159A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- impeller
- exit
- flow
- angle
- centrifugal pump
- 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.)
- Withdrawn
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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/04—Helico-centrifugal pumps
-
- 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
- F04D29/2283—Rotors specially for centrifugal pumps with special measures for reverse pumping action
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A reversible enclosed cast centrifugal impeller contain
ing radial impeller vanes shaped with a gradual change in
the vane angle on both identical working sides for identical
hydraulic performance in either direction is provided in a
centrifugal pump. Fluid flow enters into the impeller eye and
careful rounding of the inlet edges to an airfoil shape,
combined with a small vane thickness reduces cavitation. A
fully concentric case gives symmetrical uniform flow areas
between the vanes and an exit flow splitter directing the flow
through the impeller into the concentric case, thereby
eliminating flow separation at the impeller exit and control
ing required exit area. Axial thrust balancing holes are used
to reduce the pressure area behind the back shroud. The
splitter angle is the same as the absolute exit angle of the
fluid leaving the impeller to avoid shock losses.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24612381A | 1981-03-20 | 1981-03-20 | |
| US246123 | 1981-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0061159A2 EP0061159A2 (en) | 1982-09-29 |
| EP0061159A3 true EP0061159A3 (en) | 1983-04-20 |
Family
ID=22929395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82102236A Withdrawn EP0061159A3 (en) | 1981-03-20 | 1982-03-18 | Reversible centrifugal pump with identical hydraulic performance either way |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0061159A3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4203391A1 (en) * | 1992-02-06 | 1993-08-12 | Schaeffler Waelzlager Kg | Sealing arrangement for IC engine water pump - has funnel-shaped cap attached to rotor shaft and to pump housing |
| EP0664397A1 (en) * | 1994-01-24 | 1995-07-26 | JUWEL AQUARIUM GmbH & Co. KG | Impeller pump |
| AUPN715595A0 (en) * | 1995-12-14 | 1996-01-18 | Warman International Limited | Improved centrifugal pump |
| DE19732062A1 (en) * | 1997-07-25 | 1999-01-28 | Uraca Pumpen | Pump arrangement with a piston pump and a booster pump |
| CN103591046B (en) * | 2013-11-12 | 2016-06-15 | 大连理工大学 | A kind of high-power shield electric machine core main pump high-efficiency hydraulic model under multi-source constraint |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2291478A (en) * | 1939-08-12 | 1942-07-28 | Bour Harry E La | Centrifugal pump |
| DE1528861A1 (en) * | 1963-05-15 | 1970-10-22 | Stulens Jean Louis | Circulating turbine pump, especially for central heating systems |
| FR2281045A7 (en) * | 1974-07-30 | 1976-02-27 | Bosch Siemens Hausgeraete | Centrifugal pump with driving motor - has annular protrusion from impeller plate coaxial to motor shaft |
-
1982
- 1982-03-18 EP EP82102236A patent/EP0061159A3/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2291478A (en) * | 1939-08-12 | 1942-07-28 | Bour Harry E La | Centrifugal pump |
| DE1528861A1 (en) * | 1963-05-15 | 1970-10-22 | Stulens Jean Louis | Circulating turbine pump, especially for central heating systems |
| FR2281045A7 (en) * | 1974-07-30 | 1976-02-27 | Bosch Siemens Hausgeraete | Centrifugal pump with driving motor - has annular protrusion from impeller plate coaxial to motor shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0061159A2 (en) | 1982-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): AT BE DE FR GB IT NL SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Designated state(s): AT BE DE FR GB IT NL SE |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19840327 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LEGAULT, JOHN FRANCIS |