CN100526656C - Automobile engine cooling fan - Google Patents
Automobile engine cooling fan Download PDFInfo
- Publication number
- CN100526656C CN100526656C CNB2007101562256A CN200710156225A CN100526656C CN 100526656 C CN100526656 C CN 100526656C CN B2007101562256 A CNB2007101562256 A CN B2007101562256A CN 200710156225 A CN200710156225 A CN 200710156225A CN 100526656 C CN100526656 C CN 100526656C
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- blade
- wheel hub
- blades
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- fan
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Abstract
A vehicle engine cooling fan is disclosed. The invention comprises a tray, a wheel hub and a reinforced rib, and blades. The impeller comprises a tray, a wheel hub, and blades. the blades are airfoil shaped cross section blades, the blades and the wheel hub are formed an integral body, the chord length ratio of the inner and the outer diameters of each blade is between 1:1.1 to 1:1.5, the included angle of each cross section gravity line and the radial straight line of the blades is between 5 degrees to 25 degrees, the projection distance on the rotating axle of each cross section gravity line of the blades is controlled between 2% to 8% of the impeller diameter, the projection distance presents a space twisted shape, and the arc transition is adopted at the connection of the blade and the wheel hub. The reinforced rib is a honeycomb-shaped reinforced rib, and the honeycomb-shaped reinforced rib is of a regular hexagon hexagonal shape. The blades and the diversion ring are connected together. The efficiency is high, the noise is small, the slip flow can not easily occur at the tail part, and the service life is long.
Description
Technical field
The present invention relates to a kind of automobile engine cooling fan.
Background technique
Along with the develop rapidly of national economic development, the use of automobile is day by day popularized.Radiation system is a very important constituent element in the automobile cooling system.And the quality of cooling fan performance directly causes the operational effect of motor car engine.Special-purpose low noise, the high efficient fan of cooling require compact dimensions, light and handy, better aerodynamic characteristics and acoustics index arranged.Automobile has two kinds substantially with fan type, and a class is the open type fan, and a class is a ring-type fan.
The open type cooling fan mainly is made up of pallet, wheel hub, blade.Ring-type fan mainly is made up of pallet, wheel hub, blade, guide ring.The blade and the guide ring of ring-type fan connect, and have alleviated fan weight, have increased rigidity, have reduced the distortion of fan, and the static balancing performance is good, and fan does not have eddy current existence, little air-flow secondary cycle between fan and the air guide sleeve when work.Energy consumption is low, the efficient height.But any class automobile fan no matter, at present, the fan blade shape all adopts the plate shaped blade of garden arc, and this shaping structures is simple, and is quick, but efficient is not high, and noise is big, and afterbody causes the separation of flow easily.This is the deficiency that present motor car engine exists.The aeroperformance of blade and acoustics index are a pair of implacable contradiction.How effectively to solve, cooling fan for cars has also been proposed new requirement.
On general, the fan molding and forming, its intrinsic internal stress forces blade extruding wheel hub, especially ring-type fan, and this will cause fan to produce unnecessary deformation in timeliness, influence the fan overall performance.The stiffening rib of the wheel hub of common ring-type fan all adopts the bar shaped stiffening rib, and this structure die sinking is simple, but poor stability, distortion is big, and then causes each vane stress unbalanced, has reduced balance quality, cause the on-stream generation of fan vibration, increased noise, reduced fan working life.Another deficiency of motor car engine annular cooling fan existence at present that Here it is.
Cooling fan should consume a large amount of engine powers when guaranteeing the motor car engine proper functioning, be again one of automobile main noise source.Therefore, people have done a large amount of work at automobile with the optimization of fan.
Summary of the invention
The objective of the invention is to overcome existing above shortcomings part, a kind of automobile engine cooling fan is provided, the one, make its efficient height, noise is little, and afterbody is difficult for causing the separation of flow, and the 2nd, make it improve working life.
For achieving the above object, the solution that the present invention takes is: a kind of automobile engine cooling fan, comprise pallet, wheel hub and stiffening rib, blade, impeller is by pallet, wheel hub, blade constitutes, blade is a wing blade cross section blade, blade and wheel hub are one-body molded, the two chord length ratio of external diameter is between 1:1.1～1:1.5 in the every blade, angle between each centroid of section on line of blade and radial alignment is between 5 °～25 °, each centroid of section on line of blade projector distance on the running shaft be controlled at impeller diameter 2%～8% between, be the spatial warping shape, arc transition is adopted in blade and wheel hub joint.
A kind of automobile fan machine aerofoil section blade of uniqueness is designed in the invention.Adopt wing blade cross section blade to replace traditional plate shaped blade of circular arc.Blade profile center line curvature of space is optimized design by different service conditions.Make full use of the characteristics of wing profile lift coefficient height, good fluidity.Improve the air quantity and the blast of fan effectively, reduce fan noise simultaneously, improve fan work efficient, energy saving.Each cross section pressure distribution of fan blade adopts and becomes circulation type, negative exponent design, and blade and wheel hub are one-body molded.Make full use of the high characteristics of outer radius peripheral velocity, promote the capacity for work of blade gas.The spatial warping shape of centroid of section line under the prerequisite of confined space size, effectively improves effective work done area of impeller.The reasonable control of inner radius established angle helps preventing that air-flow is in the root separation of flow.The reasonable control of interior external diameter established angle prevents the Radial Flow of air-flow and reduces secondary flow.Garden arc transition is adopted in blade and wheel hub joint, has both effectively improved the rigidity and the intensity of impeller, has reduced the deformable blade problem that impeller produces in rotary course simultaneously again, guarantees the aerodynamic quality of blade.
The another characteristics of the invention are that the reinforcing rib design with fan hub is cellular stiffening rib, and cellular stiffening rib is a regular hexagon.Utilize the characteristics of regular hexagon good stability,, make each vane stress equilibrium, improved balance quality, prevent the on-stream generation vibration of fan, reduced noise, improved fan working life in order to reduce fan distortion.Because regular hexagon has fabulous stability, fan is in ag(e)ing process, and its distortion is minimum.Thereby guaranteed that the fan design performance is unaffected, improved the fan overall performance.Also increased simultaneously the fan aesthetic appearance.
Description of drawings
Fig. 1 is the structural representation of present embodiment.
Fig. 2 is wing blade cross section blade profile figure.
Among the figure: 1, pallet, 2, wheel hub, 3, stiffening rib, 4, blade, 5, guide ring.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof the present invention is remake description.
Embodiment one: referring to Fig. 1 and Fig. 2, a kind of automobile engine cooling fan, comprise pallet 1, wheel hub 2 and stiffening rib 3, blade 4, impeller is by pallet 1, wheel hub 2, blade 4 constitutes, blade 4 is a wing blade cross section blade, blade 4 is one-body molded with wheel hub 2, the two chord length ratio of external diameter is 1:1.1 in the every blade 4, angle between blade 4 each centroid of section on line and radial alignment is 5 °, blade 4 each centroid of section on line projector distance on running shaft is controlled at 2% of impeller diameter, is the spatial warping shape, and blade 4 adopts arc transition with wheel hub 2 joints, stiffening rib 3 is cellular stiffening rib, and cellular stiffening rib is a regular hexagon.Blade 4 connects with guide ring 5.
Embodiment two: referring to Fig. 1 and Fig. 2, a kind of automobile engine cooling fan, comprise pallet 1, wheel hub 2 and stiffening rib 3, blade 4, impeller is made of pallet 1, wheel hub 2, blade 4, blade 4 is a wing blade cross section blade, blade 4 is one-body molded with wheel hub 2, the two chord length ratio of external diameter is 1:1.5 in the every blade 4, angle between blade 4 each centroid of section on line and radial alignment is 25 °, blade 4 each centroid of section on line projector distance on running shaft is controlled at 8% of impeller diameter, be the spatial warping shape, blade 4 adopts arc transition with wheel hub 2 joints.Other is with embodiment one.
Embodiment three: referring to Fig. 1 and Fig. 2, a kind of automobile engine cooling fan, comprise pallet 1, wheel hub 2 and stiffening rib 3, blade 4, impeller is made of pallet 1, wheel hub 2, blade 4, blade 4 is a wing blade cross section blade, blade 4 is one-body molded with wheel hub 2, the two chord length ratio of external diameter is 1:1.3 in the every blade 4, angle between blade 4 each centroid of section on line and radial alignment is 15 °, blade 4 each centroid of section on line projector distance on running shaft is controlled at 5% of impeller diameter, be the spatial warping shape, blade 4 adopts arc transition with wheel hub 2 joints.Other is with embodiment one.
Claims (2)
1, a kind of automobile engine cooling fan, comprise pallet, wheel hub and stiffening rib thereof, blade, impeller is made of pallet, wheel hub, blade, it is characterized in that: blade is a wing blade cross section blade, blade and wheel hub are one-body molded, the two chord length ratio of external diameter is between 1:1.1～1:1.5 in the every blade, angle between each centroid of section on line of blade and radial alignment is between 5 °～25 °, each centroid of section on line of blade projector distance on the running shaft be controlled at impeller diameter 2%～8% between, be the spatial warping shape, arc transition is adopted in blade and wheel hub joint.
2, automobile engine cooling fan according to claim 1 is characterized in that: described stiffening rib is cellular stiffening rib, and cellular stiffening rib is a regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101562256A CN100526656C (en) | 2007-10-04 | 2007-10-04 | Automobile engine cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101562256A CN100526656C (en) | 2007-10-04 | 2007-10-04 | Automobile engine cooling fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144486A CN101144486A (en) | 2008-03-19 |
| CN100526656C true CN100526656C (en) | 2009-08-12 |
Family
ID=39207171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101562256A Expired - Fee Related CN100526656C (en) | 2007-10-04 | 2007-10-04 | Automobile engine cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100526656C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737918B (en) * | 2009-12-17 | 2011-09-14 | 四川长虹空调有限公司 | Deflector |
| CN106402046B (en) * | 2016-11-29 | 2018-04-27 | 苏州华业检测技术服务有限公司 | One kind is without fan leaf type cooling fan of engine |
-
2007
- 2007-10-04 CN CNB2007101562256A patent/CN100526656C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101144486A (en) | 2008-03-19 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WENZHOU YILONG AUTOMOBILE PARTS CO., LTD. Free format text: FORMER OWNER: CHINA WULONG HOLDING CO., LTD. Effective date: 20110504 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325611 SHANGBUTOU, QINGJIANG TOWN, YUEQING CITY, ZHEJIANG PROVINCE TO: 325000 5108, OFFICE BUILDING OF MANAGEMENT COMMITTEE, MINGZHU ROAD, BINHAI PARK, ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, WENZHOU CITY |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110504 Address after: 325000, Wenzhou economic and Technological Development Zone, Binhai District, Pearl Road, CMC office building 5108 Patentee after: Wenzhou Yilong Automobile Components and Parts Co., Ltd. Address before: Qingjiang Town, Yueqing city of Zhejiang Province on the quay 325611 Patentee before: China wulong holding Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20141004 |
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| EXPY | Termination of patent right or utility model |