JPS562499A - Guide vane for multistage oblique flow pump - Google Patents
Guide vane for multistage oblique flow pumpInfo
- Publication number
- JPS562499A JPS562499A JP7820179A JP7820179A JPS562499A JP S562499 A JPS562499 A JP S562499A JP 7820179 A JP7820179 A JP 7820179A JP 7820179 A JP7820179 A JP 7820179A JP S562499 A JPS562499 A JP S562499A
- Authority
- JP
- Japan
- Prior art keywords
- guide vanes
- runner
- vanes
- vane
- guide vane
- 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.)
- Pending
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
- F04D1/06—Multi-stage 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
- F04D29/40—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
- F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/70—Shape
Abstract
PURPOSE: To promote the efficiency of guide vanes by providing the guide vanes with twists to the rotation wise direction of a runner on the boss side of vane-exit ends and to the reverse direction on the tip side for restraining swirls inside the flow passage of guide vanes.
CONSTITUTION: Guide vanes 4W6 are provided with a curvature -θ1 on the tip side (outer wall side) of vane-exit ends reversely to the rotation wise N of a runner. They are also provided with a curvature +θ2 on the boss side (inner wall side) to the rotation wise direction N of the runner. That is, guide vanes 4W6 are twisted on vane-exit ends. In this construction, vanes are bent from the radius of the runner to deform the cross section of a flow passage between vanes in the direction of the pressure gradient of the passage, and consequently, the generation of secondary currents is reduced in itself for promoting the efficiency of guide vanes.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7820179A JPS562499A (en) | 1979-06-22 | 1979-06-22 | Guide vane for multistage oblique flow pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7820179A JPS562499A (en) | 1979-06-22 | 1979-06-22 | Guide vane for multistage oblique flow pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS562499A true JPS562499A (en) | 1981-01-12 |
Family
ID=13655393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7820179A Pending JPS562499A (en) | 1979-06-22 | 1979-06-22 | Guide vane for multistage oblique flow pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS562499A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6415498A (en) * | 1987-07-07 | 1989-01-19 | Hitachi Ltd | Multi-stage centrifugal pump |
JP2011058384A (en) * | 2009-09-08 | 2011-03-24 | Ebara Corp | Pump with diffuser |
EP3361101A1 (en) * | 2017-02-10 | 2018-08-15 | Siemens Aktiengesellschaft | Return channel of a multistage compressor or expander with twisted vanes |
US20180347584A1 (en) * | 2017-06-06 | 2018-12-06 | Elliott Company | Extended Sculpted Twisted Return Channel Vane Arrangement |
DE102020118650A1 (en) | 2020-07-15 | 2022-01-20 | Ventilatorenfabrik Oelde, Gesellschaft mit beschränkter Haftung | centrifugal fan |
-
1979
- 1979-06-22 JP JP7820179A patent/JPS562499A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6415498A (en) * | 1987-07-07 | 1989-01-19 | Hitachi Ltd | Multi-stage centrifugal pump |
JPH0511238B2 (en) * | 1987-07-07 | 1993-02-12 | Hitachi Ltd | |
JP2011058384A (en) * | 2009-09-08 | 2011-03-24 | Ebara Corp | Pump with diffuser |
EP3361101A1 (en) * | 2017-02-10 | 2018-08-15 | Siemens Aktiengesellschaft | Return channel of a multistage compressor or expander with twisted vanes |
WO2018145838A1 (en) * | 2017-02-10 | 2018-08-16 | Siemens Aktiengesellschaft | Return stage of a multi-staged compressor or expander with twisted guide vanes |
US11073162B2 (en) | 2017-02-10 | 2021-07-27 | Siemens Energy Global GmbH & Co. KG | Return stage of a multi-staged compressor or expander with twisted guide vanes |
US20180347584A1 (en) * | 2017-06-06 | 2018-12-06 | Elliott Company | Extended Sculpted Twisted Return Channel Vane Arrangement |
US10760587B2 (en) * | 2017-06-06 | 2020-09-01 | Elliott Company | Extended sculpted twisted return channel vane arrangement |
DE102020118650A1 (en) | 2020-07-15 | 2022-01-20 | Ventilatorenfabrik Oelde, Gesellschaft mit beschränkter Haftung | centrifugal fan |
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