SE7509953L - DEVICE FOR AXIAL FLOW GENERATION IN HYDRAULIC DEVICES - Google Patents
DEVICE FOR AXIAL FLOW GENERATION IN HYDRAULIC DEVICESInfo
- Publication number
- SE7509953L SE7509953L SE7509953A SE7509953A SE7509953L SE 7509953 L SE7509953 L SE 7509953L SE 7509953 A SE7509953 A SE 7509953A SE 7509953 A SE7509953 A SE 7509953A SE 7509953 L SE7509953 L SE 7509953L
- Authority
- SE
- Sweden
- Prior art keywords
- inducer
- diameter
- impeller
- fluid flowing
- recirculated
- 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
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2277—Rotors specially for centrifugal pumps with special measures for increasing NPSH or dealing with liquids near boiling-point
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/71—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with propellers
- B01F27/711—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with propellers co-operating with stationary guiding means, e.g. baffles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1523893 Centrifugal pumps NIKKISO CO Ltd 20 Aug 1975 [13 March 1975 (3)] 34529/75 Heading F1C In a pump comprising an impeller preceded by an axial-flow inducer coaxial with the impeller, axial counterflows in the fluid flowing from the pump inlet to the impeller are confined to the downstream side of the inlet so as to reduce noise caused by such counterflows. The first part 16a, Fig. 6, of the inducer is of smaller pitch than the second part 16b whereby fluid flowing back from the main impeller 14 is recirculated through the second part. An annular barrier 22 may be provided to cause fluid flowing back past the first inducer part 16a to be recirculated via the inducer. The axial distance between the inducer parts 16a, 16b, is equal to 0À85 to 0À95 times the inducer diameter. In the pump shown in Fig. 7, the inducer parts differ in diameter, the diameter of the part 16b being 0À9 to 0À97 times the diameter of the part 16a. As before fluid flowing back from the main impeller 14 is recirculated through the inducer part 16b. A sleeve 26 may be secured to the front end of the inducer part 16a, return flow originating in front of the inducer being deflected as shown by an annular flange 28. The part 16b of smaller diameter may be omitted, Figs. 1-3 (not shown).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3058775A JPS51105602A (en) | 1975-03-13 | 1975-03-13 | INDEYUUSATSUKI SUIRYOKUSOCHINO SOONBOSHIHOHO |
| JP3058975A JPS51105604A (en) | 1975-03-13 | 1975-03-13 | JIKURYUINDEYUUSANOKAIRYO |
| JP50030588A JPS51105603A (en) | 1975-03-13 | 1975-03-13 | Jikuryuindeyuusanokairyo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7509953L true SE7509953L (en) | 1976-09-14 |
| SE418890B SE418890B (en) | 1981-06-29 |
Family
ID=27287023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7509953A SE418890B (en) | 1975-03-13 | 1975-09-08 | DEVICE FOR AXIAL FLOOD SPRAYERS FOR HYDRAULIC DEVICES |
Country Status (9)
| Country | Link |
|---|---|
| BR (1) | BR7507097A (en) |
| CA (1) | CA1041834A (en) |
| CH (1) | CH606804A5 (en) |
| DE (1) | DE2538162C3 (en) |
| FR (1) | FR2303975A1 (en) |
| GB (1) | GB1523893A (en) |
| IT (1) | IT1043574B (en) |
| NL (1) | NL175093C (en) |
| SE (1) | SE418890B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2558840C2 (en) * | 1975-12-27 | 1983-03-24 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | Device to reduce cavitation wear |
| US4275988A (en) * | 1978-12-18 | 1981-06-30 | Kalashnikov L F | Axial or worm-type centrifugal impeller pump |
| US4884943A (en) * | 1987-06-25 | 1989-12-05 | A. Ahlstrom Corporation | Method and apparatus for pumping high-consistency fiber suspension |
| US5304033A (en) * | 1992-07-20 | 1994-04-19 | Allied-Signal Inc. | Rotary compressor with stepped cover contour |
| GB2312929B (en) * | 1996-05-07 | 2000-08-23 | Inst Francais Du Petrole | Axial-flow and centrifugal pump system |
| FR2765639B1 (en) * | 1997-07-04 | 2004-11-26 | Europ Propulsion | INDUCER EQUIPMENT FOR PUMP WITH LARGE SUCTION CAPACITY |
| WO1999054026A1 (en) * | 1998-04-22 | 1999-10-28 | Irish & Associates | A flow directing device for a medium consistency pump |
| US6210105B1 (en) | 1998-11-27 | 2001-04-03 | Irish & Asssociates | Flow directing device for a medium consistency pump |
| FI111023B (en) | 1998-12-30 | 2003-05-15 | Sulzer Pumpen Ag | Method and apparatus for pumping material and rotor used in connection with the apparatus |
| DE19918286A1 (en) * | 1999-04-22 | 2000-10-26 | Ksb Ag | Inducer for centrifugal pump is assembled from individual parts, and has blades fitted into and welded to grooves in inducer hub |
| EP2894343B2 (en) * | 2014-01-12 | 2021-09-01 | Alfa Laval Corporate AB | Self-priming centrifugal pump |
| DK2894342T3 (en) | 2014-01-12 | 2017-04-03 | Alfa Laval Corp Ab | SELF-TILTING CENTRIFUGAL PUMP |
| CN112206409B (en) * | 2020-11-10 | 2021-11-30 | 山东大学 | Magnetic suspension mixed flow heart pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3299821A (en) | 1964-08-21 | 1967-01-24 | Sundstrand Corp | Pump inducer |
| DE1931527U (en) | 1965-11-26 | 1966-01-27 | Steinebrunner & Co Maschinenfa | DEVICE FOR TRIMMING BRUSHES WITH A CENTRAL FIELD DETACHED FROM THE OUTSIDE FIELD. |
| US3384022A (en) | 1966-04-27 | 1968-05-21 | Ebara Mfg | Centrifugal pump |
-
1975
- 1975-08-20 GB GB34529/75A patent/GB1523893A/en not_active Expired
- 1975-08-22 NL NLAANVRAGE7509973,A patent/NL175093C/en not_active IP Right Cessation
- 1975-08-26 CA CA234,200A patent/CA1041834A/en not_active Expired
- 1975-08-27 DE DE2538162A patent/DE2538162C3/en not_active Expired
- 1975-08-28 FR FR7526549A patent/FR2303975A1/en active Granted
- 1975-09-04 CH CH1146175A patent/CH606804A5/xx not_active IP Right Cessation
- 1975-09-08 SE SE7509953A patent/SE418890B/en not_active IP Right Cessation
- 1975-10-22 IT IT28561/75A patent/IT1043574B/en active
- 1975-10-29 BR BR7507097A patent/BR7507097A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2538162C3 (en) | 1980-01-03 |
| DE2538162B2 (en) | 1979-04-26 |
| CH606804A5 (en) | 1978-11-15 |
| CA1041834A (en) | 1978-11-07 |
| IT1043574B (en) | 1980-02-29 |
| NL175093C (en) | 1984-09-17 |
| DE2538162A1 (en) | 1976-09-23 |
| GB1523893A (en) | 1978-09-06 |
| FR2303975B1 (en) | 1982-07-30 |
| FR2303975A1 (en) | 1976-10-08 |
| NL175093B (en) | 1984-04-16 |
| SE418890B (en) | 1981-06-29 |
| NL7509973A (en) | 1976-09-15 |
| BR7507097A (en) | 1976-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE7509953L (en) | DEVICE FOR AXIAL FLOW GENERATION IN HYDRAULIC DEVICES | |
| GB1257567A (en) | ||
| SE7612054L (en) | AXIALFLEKT | |
| GB1076785A (en) | Improvements in or relating to centrifugal and mixed-flow fans, pumps and the like | |
| GB1333307A (en) | Centrifugal fan | |
| ES454519A1 (en) | Means for reducing cavitation-induced erosion of centrifugal pumps | |
| GB500965A (en) | Improvements relating to screw impeller fans and pumps | |
| US3588280A (en) | Inducers for centrifugal pumps | |
| ES337516A1 (en) | Centrifugal pump inlet elbow | |
| GB983469A (en) | Axial flow fan | |
| JPS5629088A (en) | Pump device | |
| GB1107050A (en) | Improvements relating to multi-stage centrifugal pumps | |
| JPS57186097A (en) | Axial-flow fan | |
| GB2012361A (en) | Axial-Flow and Mixed-Flow Pumps | |
| GB919498A (en) | Improvements in or relating to fluid couplings | |
| GB1169396A (en) | Self-Priming Centrifugal Pump. | |
| GB594537A (en) | Improvements in centrifugal type impellers for compressors and the like | |
| GB1039473A (en) | Multi-stage fluid machine | |
| GB766216A (en) | Improvements in and relating to pumps or fans provided with an axial flow impeller | |
| JPS5299404A (en) | Suction flow path of centrifugal pump | |
| JPS555432A (en) | Pump with inducer | |
| GB1172996A (en) | Rotary Impeller Pumps | |
| GB500402A (en) | Improvements in and relating to screw propeller pumps and fans | |
| IALOVOI | Improvement of the calculation of the guide vanes of centrifugal pumps | |
| JPS5681296A (en) | Pump with inducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
Ref document number: 7509953-1 Format of ref document f/p: F |
|
| NUG | Patent has lapsed |
Ref document number: 7509953-1 Format of ref document f/p: F |