EP0294308B1 - Impulseur à aubes pour pompe centrifuge - Google Patents
Impulseur à aubes pour pompe centrifuge Download PDFInfo
- Publication number
- EP0294308B1 EP0294308B1 EP88500056A EP88500056A EP0294308B1 EP 0294308 B1 EP0294308 B1 EP 0294308B1 EP 88500056 A EP88500056 A EP 88500056A EP 88500056 A EP88500056 A EP 88500056A EP 0294308 B1 EP0294308 B1 EP 0294308B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- central
- disc
- hub
- orifice
- blades
- 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 - Lifetime
Links
Images
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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
Definitions
- This invention relates to a bladed impellor for centrifugal pumps, of the type formed by two coaxial superimposed discs of equal diameter, between which there is regularly arranged a plurality of blades, the liquid entering axially to said blades and then being discharged by centrifugal force between the edges of the discs.
- the impellor of the invention is characterized in that one of the discs is provided with a large axial orifice and bears the said blades fixedly attached to the inner surface thereof, while the other disc is provided with a central injection moulded hub of a substantially rigid material, provided with a central tubular orifice, coaxial with that of the first disc, but of smaller diameter and provided internally with a key adapted to engage a key slot of the drive shaft, the disc bearing the hub being also provided previously with a central orifice and several smaller orifices around the central one, the injection moulded material of the hub passing through said smaller orifices after being injected.
- the impellor may be seen to comprise two coaxial superimposed discs 1 and 2 of like diameter, between which a plurality of blades 3 are regularly disposed.
- the liquid flows in axially to said blades through a large orifice 5 in the disc 1 and is then discharged by centrifugal force between the edges of the discs 1 and 2, through the openings 4.
- the disc 1, apart from the said central orifice 5, is provided with the blades 3, fixedly attached to the inner surface thereof.
- the disc 2 is provided with a central injection moulded hub 6, of a substantially rigid material, provided with a central tubular orifice 7 coaxial with the orifice 5 but having a smaller diameter than the latter.
- the hub 6 is provided internally with a key 8 adapted to engage a key slot of the drive shaft, not shown.
- the disc 2 is provided initially with a central orifice 9, corresponding to the orifice 7 of the hub 6 and several smaller orifices 10 around the central one 9, so that the injection moulded material of the hub 6 is disposed through said smaller orifices 10 after being injected, as may be seen in Fig. 6.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Claims (1)
- Propulseur à pales pour pompes centrifuges du type à deux disques coaxiaux superposés (1, 2) de même diamètre entre lesquels sont situées de façon règulière plusieurs pales (3), caractérisé par le fait que l'un des diques (1,2) est muni d'un large orifice axial (5) et supporte ces pales (3), fixées sur la surface interne, alors que l'autre disque est muni d'un moyeu central moulé par injection (6) fabriqué dans un matériau extrèmement rigide, muni d'un orifice central tubulaire (7). Le disque qui supporte le moyeu (6) a été préalablement muni d'un orifice central (9) et de plusieurs orifices plus réduits (10) autour de l'orifice central (9), le matériau moulé par injection du moyeu (6) passant à travers ces orifices plus réduits (10) après son injection.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88500056T ATE79928T1 (de) | 1987-06-05 | 1988-06-03 | Kreiselpumpenschaufelrad. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES19878702114U ES1002716Y (es) | 1987-06-05 | 1987-06-05 | Turbina con alabes para bomba centrifuga |
ES8702114U | 1987-06-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0294308A1 EP0294308A1 (fr) | 1988-12-07 |
EP0294308B1 true EP0294308B1 (fr) | 1992-08-26 |
Family
ID=8251811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88500056A Expired - Lifetime EP0294308B1 (fr) | 1987-06-05 | 1988-06-03 | Impulseur à aubes pour pompe centrifuge |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0294308B1 (fr) |
AT (1) | ATE79928T1 (fr) |
DE (1) | DE3874000T2 (fr) |
ES (1) | ES1002716Y (fr) |
GR (1) | GR3006308T3 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3352599A (en) * | 1999-03-23 | 2000-10-09 | Turk Elektrik Endustrisi A.S. | Insulated fan |
CN102116312B (zh) * | 2011-03-09 | 2012-10-17 | 浙江新界泵业股份有限公司 | 用于离心泵的叶轮 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2844100A (en) * | 1954-07-06 | 1958-07-22 | Kurt J Heinicke | Sheet metal centrifugal pump |
US3070026A (en) * | 1958-12-03 | 1962-12-25 | Tait Mfg Co The | Pumps |
CH416921A (de) * | 1964-07-07 | 1966-07-15 | Patege Ag | Metallenes Lüfterrad |
NL6710533A (fr) * | 1967-07-29 | 1969-01-31 | ||
DE2126087A1 (de) * | 1971-05-26 | 1972-12-07 | Engelbrecht & Lemmerbrock | Radialgebläse mit Nabe für die Tragböden der Gebläseflügel |
-
1987
- 1987-06-05 ES ES19878702114U patent/ES1002716Y/es not_active Expired
-
1988
- 1988-06-03 DE DE8888500056T patent/DE3874000T2/de not_active Expired - Fee Related
- 1988-06-03 EP EP88500056A patent/EP0294308B1/fr not_active Expired - Lifetime
- 1988-06-03 AT AT88500056T patent/ATE79928T1/de not_active IP Right Cessation
-
1992
- 1992-11-20 GR GR920402221T patent/GR3006308T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
GR3006308T3 (fr) | 1993-06-21 |
ES1002716Y (es) | 1989-02-01 |
EP0294308A1 (fr) | 1988-12-07 |
DE3874000D1 (de) | 1992-10-01 |
ATE79928T1 (de) | 1992-09-15 |
DE3874000T2 (de) | 1993-01-14 |
ES1002716U (es) | 1988-06-16 |
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