RU2008144966A - FAN BLADES - Google Patents
FAN BLADES Download PDFInfo
- Publication number
- RU2008144966A RU2008144966A RU2008144966/06A RU2008144966A RU2008144966A RU 2008144966 A RU2008144966 A RU 2008144966A RU 2008144966/06 A RU2008144966/06 A RU 2008144966/06A RU 2008144966 A RU2008144966 A RU 2008144966A RU 2008144966 A RU2008144966 A RU 2008144966A
- Authority
- RU
- Russia
- Prior art keywords
- ellipse
- curvature
- fan blade
- blade according
- hub
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/24—Moulded or cast structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/24—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like
-
- 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
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1. Лопасть вентилятора, выполненная с возможностью установки на вращающуюся ступицу вентилятора, содержащая верхнюю поверхность, имеющую, в основном, эллиптическую кривизну, причем кривизна верхней поверхности образована на первом эллипсе, нижнюю поверхность, имеющую, в основном, эллиптическую кривизну, причем кривизна нижней поверхности образована на втором эллипсе, а также переднюю кромку, при этом каждая из верхней поверхности и нижней поверхности заканчивается на передней кромке, и заднюю кромку, при этом каждая из верхней поверхности и нижней поверхности заканчивается на задней кромке. ! 2. Лопасть вентилятора по п.1, в которой первый радиус кривизны выполнен рядом с передней кромкой, а второй радиус кривизны, рядом с задней кромкой, причем первый радиус кривизны меньше, чем второй радиус кривизны. ! 3. Лопасть вентилятора по п.1, в которой кривизна второго эллипса выполнена зависимой от кривизны второго эллипса. ! 4. Лопасть вентилятора по п.1, которая, по существу, выполнена полой. ! 5. Лопасть вентилятора по п.1, которая выполнена с возможностью установки на нее установочного элемента ступицы вентилятора. ! 6. Лопасть вентилятора по п.5, которая выполнена с возможностью крепления к ступице вентилятора посредством, по меньшей мере, одного крепления. ! 7. Лопасть вентилятора по п.1, которая имеет хорду и максимальную толщину, причем максимальная толщина составляет, в основном, 14,2% хорды. ! 8. Лопасть вентилятора по п.1, которая имеет хорду и максимальный изгиб, причем максимальный изгиб составляет, в основном, 15,6% хорды. ! 9. Лопасть вентилятора по п.1, которая установлена на ступице и имеет угол атаки, в основном, от -1° д� 1. A fan blade configured to be mounted on a rotating fan hub, comprising an upper surface having a generally elliptical curvature, the curvature of the upper surface being formed on the first ellipse, a lower surface having a generally elliptical curvature, and the curvature of the lower surface formed on the second ellipse, as well as a leading edge, each of the upper surface and the lower surface ending at the leading edge, and the trailing edge, wherein each of the upper surface and the lower surface ends at the trailing edge. ! 2. A fan blade according to claim 1, in which the first radius of curvature is made near the leading edge, and the second radius of curvature, near the trailing edge, and the first radius of curvature is less than the second radius of curvature. ! 3. A fan blade according to claim 1, wherein the curvature of the second ellipse is made dependent on the curvature of the second ellipse. ! 4. A fan blade according to claim 1, which is substantially hollow. ! 5. A fan blade according to claim 1, which is configured to install the mounting element of the fan hub thereon. ! 6. A fan blade according to claim 5, which is configured to be attached to the fan hub by means of at least one attachment. ! 7. A fan blade according to claim 1, which has a chord and a maximum thickness, the maximum thickness being generally 14.2% of the chord. ! 8. A fan blade according to claim 1, which has a chord and a maximum bend, the maximum bend being generally 15.6% of the chord. ! 9. A fan blade according to claim 1, which is mounted on the hub and has an angle of attack generally from -1 ° d�
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US58994504P | 2004-07-21 | 2004-07-21 | |
US60/589,945 | 2004-07-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
RU2008144966A true RU2008144966A (en) | 2010-05-20 |
Family
ID=35967818
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2007106444/06A RU2353817C2 (en) | 2004-07-21 | 2005-01-28 | Blades of fan and modifications |
RU2008144966/06A RU2008144966A (en) | 2004-07-21 | 2008-11-13 | FAN BLADES |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2007106444/06A RU2353817C2 (en) | 2004-07-21 | 2005-01-28 | Blades of fan and modifications |
Country Status (17)
Country | Link |
---|---|
JP (2) | JP2008507654A (en) |
KR (3) | KR101320805B1 (en) |
CN (2) | CN101608640B (en) |
AU (2) | AU2005278207B2 (en) |
BR (1) | BRPI0513587B1 (en) |
CA (1) | CA2574762C (en) |
CR (1) | CR8933A (en) |
EC (1) | ECSP077265A (en) |
EG (1) | EG24639A (en) |
IL (2) | IL180822A (en) |
MX (1) | MX2007000821A (en) |
NO (1) | NO20070961L (en) |
NZ (2) | NZ553003A (en) |
RU (2) | RU2353817C2 (en) |
SG (1) | SG139757A1 (en) |
WO (1) | WO2006022812A1 (en) |
ZA (1) | ZA200701425B (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7934907B2 (en) | 2004-07-21 | 2011-05-03 | Delta T Corporation | Cuffed fan blade modifications |
US7252478B2 (en) | 2004-07-21 | 2007-08-07 | Delta T Corporation | Fan blade modifications |
US8162613B2 (en) | 2007-03-01 | 2012-04-24 | Delta T Corporation | Angled airfoil extension for fan blade |
US8721305B2 (en) * | 2009-05-04 | 2014-05-13 | Delta T Corporation | Ceiling fan with variable blade pitch and variable speed control |
KR101331103B1 (en) * | 2011-05-20 | 2013-11-19 | 성광기전주식회사 | Fan blade for the indoor air circulation and its instrument using this blade |
US8842000B2 (en) | 2012-07-17 | 2014-09-23 | 4Front Engineered Solutions, Inc. | Fire control systems |
CN103708038B (en) * | 2012-10-09 | 2016-08-17 | 袁锋 | Double-dragon aircraft |
KR102200395B1 (en) * | 2013-12-12 | 2021-01-08 | 엘지전자 주식회사 | An axial fan and an air conditioner including the same |
US9874214B2 (en) | 2014-01-28 | 2018-01-23 | 4Front Engineered Solutions, Inc. | Fan with fan blade mounting structure |
CN104044729B (en) * | 2014-05-27 | 2016-04-06 | 北京航空航天大学 | A kind of high-altitude propeller arrangement |
US9726192B2 (en) | 2015-03-31 | 2017-08-08 | Assa Abloy Entrance Systems Ab | Fan blades and associated blade tips |
GB2551311A (en) * | 2016-05-24 | 2017-12-20 | Airbus Operations Ltd | Winglet |
TWI648470B (en) * | 2017-09-04 | 2019-01-21 | 建準電機工業股份有限公司 | Blade deflector |
KR102326771B1 (en) * | 2021-01-06 | 2021-11-15 | 윤형탁 | Impeller and method for manufacturing the same, and blade for an impeller |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3017226A1 (en) * | 1979-05-12 | 1980-11-20 | Papst Motoren Kg | FAN BLADE |
US4968216A (en) * | 1984-10-12 | 1990-11-06 | The Boeing Company | Two-stage fluid driven turbine |
DE3819145A1 (en) * | 1988-06-04 | 1989-12-14 | Albrecht George Prof D Fischer | Aerodynamically active end plates for aircraft-wing and propeller-blade tips |
JP2859448B2 (en) * | 1990-12-29 | 1999-02-17 | 株式会社東芝 | Multi-wing fan |
US5823480A (en) * | 1993-04-05 | 1998-10-20 | La Roche; Ulrich | Wing with a wing grid as the end section |
US5564901A (en) * | 1993-12-14 | 1996-10-15 | The Moore Company | Low noise fan |
US6161797A (en) * | 1996-11-25 | 2000-12-19 | Dugan Air Technologies, Inc. | Method and apparatus for reducing airplane noise |
CN2284082Y (en) * | 1996-12-30 | 1998-06-17 | 浙江永安消防有限公司 | High effective and high multiple foam generator |
US6244821B1 (en) * | 1999-02-19 | 2001-06-12 | Mechanization Systems Company, Inc. | Low speed cooling fan |
JP2002021777A (en) * | 2000-07-12 | 2002-01-23 | Michihiro Nishi | Jet fan |
CN100484831C (en) * | 2000-07-13 | 2009-05-06 | 韩玮 | Fan-type fluid transportation and power propulsion propeller |
US6565320B1 (en) * | 2000-11-13 | 2003-05-20 | Borgwarner, Inc. | Molded cooling fan |
US6626640B2 (en) * | 2001-11-19 | 2003-09-30 | Durmitor Inc. | Fan with reduced noise |
-
2005
- 2005-01-28 AU AU2005278207A patent/AU2005278207B2/en active Active
- 2005-01-28 JP JP2007522481A patent/JP2008507654A/en active Pending
- 2005-01-28 CA CA2574762A patent/CA2574762C/en active Active
- 2005-01-28 NZ NZ553003A patent/NZ553003A/en unknown
- 2005-01-28 KR KR1020127032180A patent/KR101320805B1/en active IP Right Grant
- 2005-01-28 CN CN2009101505341A patent/CN101608640B/en active Active
- 2005-01-28 NZ NZ578817A patent/NZ578817A/en unknown
- 2005-01-28 MX MX2007000821A patent/MX2007000821A/en active IP Right Grant
- 2005-01-28 WO PCT/US2005/002703 patent/WO2006022812A1/en active Application Filing
- 2005-01-28 KR KR1020077003964A patent/KR20070083496A/en not_active Application Discontinuation
- 2005-01-28 SG SG200800636-3A patent/SG139757A1/en unknown
- 2005-01-28 KR KR1020137007280A patent/KR101297469B1/en active IP Right Grant
- 2005-01-28 RU RU2007106444/06A patent/RU2353817C2/en not_active IP Right Cessation
- 2005-01-28 BR BRPI0513587-7A patent/BRPI0513587B1/en active IP Right Grant
- 2005-01-28 CN CN200580030869XA patent/CN101099028B/en active Active
-
2007
- 2007-01-21 IL IL180822A patent/IL180822A/en unknown
- 2007-01-22 EG EGNA2007000051 patent/EG24639A/en active
- 2007-02-16 CR CR8933A patent/CR8933A/en not_active Application Discontinuation
- 2007-02-19 ZA ZA200701425A patent/ZA200701425B/en unknown
- 2007-02-20 NO NO20070961A patent/NO20070961L/en not_active Application Discontinuation
- 2007-02-21 EC EC2007007265A patent/ECSP077265A/en unknown
-
2008
- 2008-11-13 RU RU2008144966/06A patent/RU2008144966A/en unknown
-
2010
- 2010-04-18 IL IL205173A patent/IL205173A/en unknown
- 2010-09-01 AU AU2010214764A patent/AU2010214764B2/en active Active
-
2011
- 2011-07-11 JP JP2011152967A patent/JP4987147B2/en active Active
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