SU1694993A1 - Axial fan impeller - Google Patents
Axial fan impeller Download PDFInfo
- Publication number
- SU1694993A1 SU1694993A1 SU874239391A SU4239391A SU1694993A1 SU 1694993 A1 SU1694993 A1 SU 1694993A1 SU 874239391 A SU874239391 A SU 874239391A SU 4239391 A SU4239391 A SU 4239391A SU 1694993 A1 SU1694993 A1 SU 1694993A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pen
- sleeve
- gap
- root
- feather
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- 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
-
- 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
- F04D29/684—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid injection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Изобретение относитс к вентил торостроению и позвол ет повысить КПД вентил тора путем уменьшени аэродинамических потерь. Перо 2 каждой лопатки, закрепленной на втулке 1, в корневой части имеет участки 3, 4, соединенные между собой криволинейной перемычкой (П) 5. Профильна пластина 6 закреплена на вогнутой поверхности пера и образует с П полость 7, а с поверхностью втулки зазор 8. Отверсти 9 П расположены со стороны выходной кромки пера. Часть основного потока, обтекающего корневую часть пера, отсасываетс через зазор и выходит через отверсти на выпуклую поверхность пера, что позвол ет улучшить обтекание втулки потоком в области корневой части пера. 1 ил.The invention relates to a fan construction and makes it possible to increase the efficiency of a fan by reducing aerodynamic losses. The pen 2 of each blade fixed on the sleeve 1, in the root part has sections 3, 4 interconnected by a curvilinear jumper (P) 5. The profile plate 6 is fixed on the concave surface of the pen and forms a gap 7 with the sleeve 7, and with the surface of the sleeve a gap 8 . Holes 9 P located on the side of the output edge of the pen. A portion of the main flow around the root of the pen is sucked through the gap and out through the holes onto the convex surface of the pen, which allows for improved flow of the sleeve around the root of the pen. 1 il.
Description
Изобретение относитс к вентил торо- строению, в частности к рабочим колесам осевых вентил торов.The invention relates to a torus valve, in particular to impellers of axial fans.
Цель изобретени - повышение КПД вентил тора путем уменьшени аэродинамических потерь.The purpose of the invention is to increase the efficiency of the fan by reducing aerodynamic losses.
На чертеже изображена рабоча лопатка осевого вентил тора, закрепленна на втулке.The drawing shows a working blade of an axial fan mounted on a sleeve.
Рабочее колесо осевого вентил тора содержит втулку 1 и закрепленные на ней лопатки , перо 2 каждой из которых в корневой части имеет участки 3 и 4, соединенные между собой криволинейной перемычкой 5. При этом перо 2 каждой лопатки снабжено профильной пластиной 6, закрепленной на вогнутой поверхности пера 2 и образующей с перемычкой 5 полость 7, а с поверхностью втулки 1 - зазор 8, причем перемычка 5 имеет отверсти 9, расположенные со стороны выходной кромки пера 2.The impeller of an axial fan contains a sleeve 1 and blades fixed on it, feather 2 of each of which in the root part has sections 3 and 4 interconnected by a curvilinear jumper 5. At that, feather 2 of each blade is provided with a profile plate 6 fixed on a concave surface pen 2 and forming with lintel 5 cavity 7, and with the surface of the sleeve 1 - the gap 8, and the jumper 5 has holes 9 located on the side of the output edge of the pen 2.
При работе вентил тора основной поток воздуха поступает на лопатки. Часть основного потока, обтекающего корневую часть пера, отсасываетс через зазор 8 и выходит через отверсти 9 на выпуклую поверхность пера 2 лопатки, что позвол ет улучшить обтекание втулки 1 потоком в области корневой части пера 2When the fan is operating, the main air flow enters the vanes. A portion of the main flow around the root of the pen is sucked through the gap 8 and exits through the holes 9 onto the convex surface of the pen 2 of the blade, which allows for better flow around the sleeve 1 in the root of the pen 2
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874239391A SU1694993A1 (en) | 1987-05-04 | 1987-05-04 | Axial fan impeller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874239391A SU1694993A1 (en) | 1987-05-04 | 1987-05-04 | Axial fan impeller |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1694993A1 true SU1694993A1 (en) | 1991-11-30 |
Family
ID=21302069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874239391A SU1694993A1 (en) | 1987-05-04 | 1987-05-04 | Axial fan impeller |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1694993A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113056611A (en) * | 2018-11-30 | 2021-06-29 | 富士通将军股份有限公司 | Propeller fan |
EP3889438A4 (en) * | 2018-11-30 | 2022-08-24 | Fujitsu General Limited | Propeller fan |
EP3889439A4 (en) * | 2018-11-30 | 2022-08-24 | Fujitsu General Limited | Propeller fan |
EP3889440A4 (en) * | 2018-11-30 | 2022-08-31 | Fujitsu General Limited | Propeller fan |
-
1987
- 1987-05-04 SU SU874239391A patent/SU1694993A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 1624207, кл. F 04 D 29/38, 09.03.1987. * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113056611A (en) * | 2018-11-30 | 2021-06-29 | 富士通将军股份有限公司 | Propeller fan |
EP3889438A4 (en) * | 2018-11-30 | 2022-08-24 | Fujitsu General Limited | Propeller fan |
EP3889441A4 (en) * | 2018-11-30 | 2022-08-24 | Fujitsu General Limited | Propeller fan |
EP3889439A4 (en) * | 2018-11-30 | 2022-08-24 | Fujitsu General Limited | Propeller fan |
EP3889440A4 (en) * | 2018-11-30 | 2022-08-31 | Fujitsu General Limited | Propeller fan |
US11512710B2 (en) | 2018-11-30 | 2022-11-29 | Fujitsu General Limited | Propeller fan |
AU2019387842B2 (en) * | 2018-11-30 | 2022-12-08 | Fujitsu General Limited | Propeller fan |
AU2019389710B2 (en) * | 2018-11-30 | 2022-12-15 | Fujitsu General Limited | Propeller fan |
CN113056611B (en) * | 2018-11-30 | 2023-12-26 | 富士通将军股份有限公司 | propeller fan |
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