SE8104956L - SET TO DRIVE AN AXIAL FLOW MACHINE AND MACHINE PERFORMANCE MACHINE - Google Patents
SET TO DRIVE AN AXIAL FLOW MACHINE AND MACHINE PERFORMANCE MACHINEInfo
- Publication number
- SE8104956L SE8104956L SE8104956A SE8104956A SE8104956L SE 8104956 L SE8104956 L SE 8104956L SE 8104956 A SE8104956 A SE 8104956A SE 8104956 A SE8104956 A SE 8104956A SE 8104956 L SE8104956 L SE 8104956L
- Authority
- SE
- Sweden
- Prior art keywords
- rotor
- machine
- decreasing
- energy
- downstream
- 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
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/007—Axial-flow pumps multistage fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/024—Multi-stage pumps with contrarotating parts
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/682—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid extraction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The machine e.g. a fan, has a cylindrical housing (2) around a rotor (1), and a guide wheel (3) downstream of the rotor (1). Upstream or downstream of the latter there is a further auxiliary rotor (4), co-axial with rotor (1), and having blades of a smaller radial size. In the part of the hub of rotor (1) where flow separation is likely, for decreasing the deflection of the relative flow and for this reason for decreasing the blade grid loading, the supply of energy is decreased in the profile sections in question by decreasing the change in the circumferential velocity component of the absolute flow between the inlet and outlet of rotor (1). The auxiliary rotor (4) supplies further energy in these profile sections for keeping substantially constant the design- dependent energy amount in all blade sections. In a modification boundary layer aspiration is used in the region of potential flow separation. Rings (5,9) may be provided. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803031686 DE3031686A1 (en) | 1980-08-22 | 1980-08-22 | METHOD FOR OPERATING AN AXIAL FLOW WORKING MACHINE, AND SUCH A MACHINE FOR CARRYING OUT THIS METHOD |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8104956L true SE8104956L (en) | 1982-02-23 |
SE457277B SE457277B (en) | 1988-12-12 |
Family
ID=6110180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8104956A SE457277B (en) | 1980-08-22 | 1981-08-21 | AXIAL FAN WITH STABLE OPERATING COUNTRIES, EVENING AT SMALL VOLUME NUMBERS, RECOVERED BY ALTERNATIVE EXECUTIONS THAT APPLY ENERGY IN THE NAVY AREA |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5773894A (en) |
DE (1) | DE3031686A1 (en) |
FR (1) | FR2488950A1 (en) |
GB (1) | GB2082688B (en) |
SE (1) | SE457277B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5931640A (en) * | 1997-10-17 | 1999-08-03 | Robert Bosch Corporation | Oppositely skewed counter-rotating fans |
US7815418B2 (en) * | 2005-08-03 | 2010-10-19 | Mitsubishi Heavy Industries, Ltd. | Shroud and rotary vane wheel of propeller fan and propeller fan |
CN103244459B (en) * | 2013-04-25 | 2015-08-05 | 哈尔滨工业大学 | A kind of aerodynamic design method of subsonic adsorption type axial compressor |
BE1023233B1 (en) * | 2015-07-01 | 2017-01-05 | Safran Aero Boosters S.A. | PERFORATED TURBOMACHINE AXIAL COMPRESSOR DRUM |
CN110107529A (en) * | 2019-05-13 | 2019-08-09 | 西华大学 | A kind of axial-flow pump impeller and its axial-flow pump |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE62510C (en) * | G. schiele & CO. in Bockenheim bei Frankfurt a. Main | Impeller fan with auxiliary wing | ||
DE815374C (en) * | 1950-02-25 | 1951-10-01 | Voith Gmbh J M | Axial fan with intermediate ring to prevent the flow from jumping around |
DE1001113B (en) * | 1954-04-17 | 1957-01-17 | Ernst Beck Dr Ing | Device for reducing the inlet height required for centrifugal pumps |
DE1064191B (en) * | 1956-07-26 | 1959-08-27 | Voith Gmbh J M | Device for shielding the normal flow against the discharge area in the hub area of axial flow machines |
GB1342590A (en) * | 1970-07-17 | 1974-01-03 | Secr Defence | Suppression of noise in gas turbine engines |
DE2204247A1 (en) * | 1971-02-12 | 1972-08-17 | Luft U Kaeltetechnik Veb K | Boundary layer influencing in turbo machines, in particular for use in air conditioning devices |
DE2951775A1 (en) * | 1978-12-26 | 1980-07-03 | Nissan Motor | COOLING FAN |
-
1980
- 1980-08-22 DE DE19803031686 patent/DE3031686A1/en active Granted
-
1981
- 1981-08-20 GB GB8125503A patent/GB2082688B/en not_active Expired
- 1981-08-21 FR FR8116337A patent/FR2488950A1/en active Granted
- 1981-08-21 SE SE8104956A patent/SE457277B/en not_active IP Right Cessation
- 1981-08-22 JP JP56132026A patent/JPS5773894A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2488950B1 (en) | 1985-04-19 |
GB2082688B (en) | 1984-10-31 |
DE3031686C2 (en) | 1989-08-03 |
SE457277B (en) | 1988-12-12 |
JPS5773894A (en) | 1982-05-08 |
GB2082688A (en) | 1982-03-10 |
DE3031686A1 (en) | 1982-04-01 |
FR2488950A1 (en) | 1982-02-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
PT92217A (en) | CENTRIFUGAL PUMP OF APPROPRIATE FLUIDIFICATION AND IMPULSOR FOR THE PUMP REFERENCE | |
JPS5688992A (en) | Axial fan for cooling internal combustion engine | |
ES486329A1 (en) | Regenerative rotodynamic machines. | |
SE8801986L (en) | PUMP | |
GB1387480A (en) | Energy transfer machine | |
ES527272A0 (en) | MILL FOR MILLING MATERIAL ABLE TO FLOW | |
SE8104956L (en) | SET TO DRIVE AN AXIAL FLOW MACHINE AND MACHINE PERFORMANCE MACHINE | |
US2875696A (en) | Centrifugal pumps, in particular for feeding fuel to fuel injection engines | |
GB2101685B (en) | Stall-free axial flow fan | |
ES483641A1 (en) | Turbomachine | |
GB937987A (en) | ||
KR830003011A (en) | Axial Centrifugal Pumps for Fluid Circulation | |
GB999038A (en) | Axial flow fan with adjustable blades | |
GB581444A (en) | Improvements in or relating to pumps, fans and like machines for transmitting energy to fluids | |
US2325530A (en) | Fluid driven gyroscope | |
GB765345A (en) | Improvements relating to the construction of axial flow fans | |
GB873592A (en) | Apparatus for separating moisture and condensable vapors from a gas | |
JPS5577349A (en) | Cooling device for enclosed motor | |
JPS5491805A (en) | Suction passage in fluid machine | |
GB2014663A (en) | Gas Turbine Ducted Fan Engine | |
SU1724898A1 (en) | Controllable partial hydraulic machine | |
SU1498956A1 (en) | Pump | |
CA1099612A (en) | Water turbine | |
RU1275994C (en) | Axial-flow compressor stage | |
SU777365A1 (en) | Apparatus for feeding in-flow air |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAL | Patent in force |
Ref document number: 8104956-1 Format of ref document f/p: F |
|
NUG | Patent has lapsed |
Ref document number: 8104956-1 Format of ref document f/p: F |