WO1995019503A1 - Roue mobile de pompe centrifuge en tole avec orifices de decharge - Google Patents
Roue mobile de pompe centrifuge en tole avec orifices de decharge Download PDFInfo
- Publication number
- WO1995019503A1 WO1995019503A1 PCT/EP1995/000016 EP9500016W WO9519503A1 WO 1995019503 A1 WO1995019503 A1 WO 1995019503A1 EP 9500016 W EP9500016 W EP 9500016W WO 9519503 A1 WO9519503 A1 WO 9519503A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- centrifugal pump
- pump impeller
- impeller
- sheet metal
- Prior art date
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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
-
- 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
- F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance
-
- 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
- F04D29/2272—Rotors specially for centrifugal pumps with special measures for influencing flow or boundary layer
Definitions
- Centrifugal pump impeller made of sheet metal equipped with relief openings
- the invention relates to a centrifugal pump impeller formed from sheet metal, which has relief openings arranged in the pressure-side cover disk.
- the object on which the invention is based is to create a centrifugal pump impeller made of sheet metal, the relief openings of which can be produced with little effort direct the relief flow in a direction which has little effect on the flow in the impeller inlet.
- the pockets can be shaped in a simple manner, optionally simultaneously with one or more further shaping measures for producing the impeller, accomplish.
- the individual pocket can be formed by a bulge embossed into the cover plate from only one side or by two bulges lying opposite one another. The opening located at the raised end of a bulge or between two bulges can already arise when a pocket is formed, so that a further step is not necessary for this.
- Fig. 1 is a partial view of a centrifugal pump impeller according to the invention shown in section, and in
- FIG. 2 is a plan view of a relief opening of the impeller of FIG. 1, shown as a detail.
- the centrifugal pump impeller 1 made of sheet metal is arranged with a hub 2 on a shaft, not shown.
- the centrifugal pump impeller 1 has several over its circumference evenly distributed impeller blades 3, which are arranged between a front, suction-side cover plate 4 and a rear, pressure-side cover plate 5.
- a plurality of pockets 6 Arranged in the pressure-side cover plate 5 are a plurality of pockets 6 distributed uniformly over the circumference, each of which is formed by two bulges 7 and 8 pressed into the cover plate 5 in the opposite direction.
- the connection which is initially present between the bulges 7 and 8 is torn open, as a result of which an opening 9 is created.
- the pocket 6 and the opening 9 are aligned so that the relief current flowing from the hub space 10 into the impeller inlet 11, shown here by arrow 12, has approximately the same direction as the main flow symbolized by an arrow 13 at the impeller inlet 11.
- such a pocket can also be formed by a single bulge 7 or 8, each of which has the same shaping direction, as shown here.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59504143T DE59504143D1 (de) | 1994-01-12 | 1995-01-04 | Mit entlastungsöffnungen ausgestattetes kreiselpumpenlaufrad aus blech |
EP95906291A EP0739452B1 (fr) | 1994-01-12 | 1995-01-04 | Roue mobile de pompe centrifuge en tole avec orifices de decharge |
DK95906291T DK0739452T3 (da) | 1994-01-12 | 1995-01-04 | Centrifugalpumperotor af plade og med aflastningsåbninger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4400633A DE4400633A1 (de) | 1994-01-12 | 1994-01-12 | Mit Entlastungsöffnungen ausgestattetes Kreiselpumpenlaufrad aus Blech |
DEP4400633.0 | 1994-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995019503A1 true WO1995019503A1 (fr) | 1995-07-20 |
Family
ID=6507746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1995/000016 WO1995019503A1 (fr) | 1994-01-12 | 1995-01-04 | Roue mobile de pompe centrifuge en tole avec orifices de decharge |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0739452B1 (fr) |
DE (2) | DE4400633A1 (fr) |
DK (1) | DK0739452T3 (fr) |
WO (1) | WO1995019503A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8398375B2 (en) | 2008-03-26 | 2013-03-19 | Hitachi Plant Technologies, Ltd. | Impeller |
US9556876B2 (en) | 2012-01-23 | 2017-01-31 | Mitsubishi Heavy Industries, Ltd. | Centrifugal fluid machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140108389A (ko) * | 2013-02-26 | 2014-09-11 | 현대중공업 주식회사 | 밸런싱홀을 구비하는 원심 펌프 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR972528A (fr) * | 1948-05-05 | 1951-01-31 | Cie Des Surchauffeurs | Perfectionnements aux pompes centrifuges |
US3632220A (en) * | 1970-08-27 | 1972-01-04 | Chrysler Corp | Coolant pump |
WO1986006799A1 (fr) * | 1985-05-15 | 1986-11-20 | Klein, Schanzlin & Becker Aktiengesellschaft | Roue a aubes |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE518179C (de) * | 1929-09-20 | 1931-02-12 | Hans Reinecke | Entlastung der innerhalb der rueckseitigen Dichtungsringe der Laufraeder umlaufenderhydraulischer Maschinen befindlichen Raeume |
JPH05288803A (ja) * | 1992-04-14 | 1993-11-05 | Fujitsu Ltd | Icトレー |
-
1994
- 1994-01-12 DE DE4400633A patent/DE4400633A1/de not_active Withdrawn
-
1995
- 1995-01-04 WO PCT/EP1995/000016 patent/WO1995019503A1/fr active IP Right Grant
- 1995-01-04 DK DK95906291T patent/DK0739452T3/da active
- 1995-01-04 DE DE59504143T patent/DE59504143D1/de not_active Expired - Lifetime
- 1995-01-04 EP EP95906291A patent/EP0739452B1/fr not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR972528A (fr) * | 1948-05-05 | 1951-01-31 | Cie Des Surchauffeurs | Perfectionnements aux pompes centrifuges |
US3632220A (en) * | 1970-08-27 | 1972-01-04 | Chrysler Corp | Coolant pump |
WO1986006799A1 (fr) * | 1985-05-15 | 1986-11-20 | Klein, Schanzlin & Becker Aktiengesellschaft | Roue a aubes |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8398375B2 (en) | 2008-03-26 | 2013-03-19 | Hitachi Plant Technologies, Ltd. | Impeller |
US9556876B2 (en) | 2012-01-23 | 2017-01-31 | Mitsubishi Heavy Industries, Ltd. | Centrifugal fluid machine |
Also Published As
Publication number | Publication date |
---|---|
EP0739452B1 (fr) | 1998-11-04 |
DE4400633A1 (de) | 1995-07-13 |
DE59504143D1 (de) | 1998-12-10 |
EP0739452A1 (fr) | 1996-10-30 |
DK0739452T3 (da) | 1999-07-19 |
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