CN104832449B - A kind of carbon fiber fan blade for big-and-middle-sized diesel engine radiator - Google Patents
A kind of carbon fiber fan blade for big-and-middle-sized diesel engine radiator Download PDFInfo
- Publication number
- CN104832449B CN104832449B CN201510183765.8A CN201510183765A CN104832449B CN 104832449 B CN104832449 B CN 104832449B CN 201510183765 A CN201510183765 A CN 201510183765A CN 104832449 B CN104832449 B CN 104832449B
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- China
- Prior art keywords
- fan blade
- carbon fiber
- back blades
- blade
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 38
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 38
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 7
- 241001075561 Fioria Species 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 229920002239 polyacrylonitrile Polymers 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005087 graphitization Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910000926 A-3 tool steel Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials 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
- F04D29/26—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/303—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the leading edge of a rotor blade
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/30—Inorganic materials other than provided for in groups F05D2300/10 - F05D2300/2291
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of carbon fiber fan blade for big-and-middle-sized diesel engine radiator, and the fan blade material is carbon fiber；The trailing edge minimum thickness of the fan blade is 0.1 2mm.The blade face of the fan blade sets the back blades of carbon fiber, and the back blades is arranged on the windward side of the fan blade；Back blades and the angle of the fan blade are 15 25 degree；The width of the back blades is 0.2 0.15 times of fan blade；The length of back blades is 0.25 0.3 times of fan blade；Back blades is arranged at the fan blade length of 0.12 0.2 times of fan blade root.It is an advantage of the invention that：Due to the fan blade using the manufacture of full carbon fiber, weight saving is a lot, and intensity is got back raising, thus it is guaranteed that the thickness of blade trailing edge reaches 0.1 2mm, still with preferable intensity, the wind energy of trailing edge both sides is gently converged, and effectively reduces noise；In addition, using the structure of back blades, the flow direction of wind is changed, improves radiating effect.
Description
Technical field
The present invention relates to field of engineering technology, the carbon fiber fan of specifically a kind of big-and-middle-sized diesel engine radiator
Blade.
Background technology
Carbon fiber is the microcrystalline graphite material as obtained from organic fiber through carbonization and graphitization processing.Carbon fiber it is microcosmic
Structure is random graphits structure similar to Delanium.
Carbon fiber is a kind of new material of excellent in mechanical performance, 1/4 of its proportion less than steel, carbon fibre resin composite wood
Expect that tensile strength is general all in more than 3500Mpa, be 7~9 times of steel, tensile modulus of elasticity is that 230~430Gpa is also higher than steel.
Therefore CFRP specific strength is that the ratio between intensity and its density of material can reach more than 2000Mpa/ (g/cm3), and the ratio of A3 steel
Intensity is only 59Mpa/ (g/cm3) left and right, and its specific modulus is also higher than steel.The specific strength of material is higher, then member dead weight is smaller, than
Modulus is higher, then the rigidity of component is bigger, in this sense predictive of carbon fiber engineering broad prospect of application.
Carbon fiber can use polyacrylonitrile fibre, pitch fibers, viscose or phenolic fibre to be made through being carbonized respectively；By state
It is divided into long filament, chopped fiber and chopped strand；It is divided into universal and high-performance type by mechanical property.Common carbon fiber intensity is
1000 MPas (MPa), modulus are 100GPa or so.High-performance carbon fibers are divided into high-strength (intensity 2000MPa, modulus again
250GPa) and high model (more than modulus 300GPa).Also known as superelevation strong type of the intensity more than 4000MPa；Modulus is more than
450GPa's is referred to as superelevation model.With space flight and the development of aircraft industry, it have also appeared high-strength height and stretch type carbon fiber, it extends
Rate is more than 2%.Dosage maximum is polyacrylonitrile (PAN) base carbon fibre.
The more universal carbon fiber of application is mainly polyacrylonitrile carbon fiber and asphalt-based carbon fiber at present.The manufacture bag of carbon fiber
Include 4 processes such as fibre spinning, thermostabilization (pre-oxidation), carbonization, graphitization.Adjoint chemical change includes therebetween, dehydrogenation,
Cyclisation, pre-oxidation, oxidation and deoxidation etc..
It is well known that big-and-middle-sized diesel engine heat dissipation problem is motor vehicle asking of being frequently encountered in transportation
Topic, it is forced to stop due to radiating bad, under extreme case, or even damage engine.Traditional radiator uses aluminum blade,
For strengthen radiating effect, often using increase blade method, but this method on the one hand by engine bin volumetric constraint, separately
On the one hand due to larger, it is bad to often result in intensity, leaf destruction accident easily occurs, in particular for bullet train
When, harmfulness is bigger.Using other metal materials, such as steel, not only manufacturing cost is high, and weight is big, virtually increases
Energy resource consumption is added.In addition, producing larger noise during blade working, its reason is that existing blade is generally metal material system
Into being proof strength, thickness is larger at trailing edge, and in blade working, the high speed winds of the both sides of blade are converged herein, is formed larger
Noise, to solve the technical problem, prior art typically carries out appropriate change using the shape to trailing edge, such as in blade table
Face or trailing edge set the non-smooth-shapeds such as bumps, groove, i.e., so-called " vortex generator ", and the trailing edge in blade also having is set
Zigzag part, but these methods are all only capable of improving, fundamentally solve gas conflux caused by huge noise.
Again, because blade is made of metal, weight is larger, and therefore, centrifugal force caused by rotation is larger at a high speed for blade, easily causes leaf
Piece is broken, to prevent this kind of situation from occurring, it is necessary to increase the thickness of blade；And another direct result of leaf weight greatly is just
It is that blade rotational speed is restricted, therefore, wind-force is smaller.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of for big-and-middle-sized diesel engine radiator
Carbon fiber fan blade, the fan blade material are carbon fiber；The trailing edge minimum thickness of the fan blade is 0.1-2mm.
Due to using carbon fiber, and carbon fiber lighter in weight, intensity are preferable, it is ensured that even if the thickness of trailing edge reaches
0.1-2mm, still with preferable intensity, therefore, the wind energy of trailing edge both sides is gently converged, and effectively reduces noise；In addition,
In light weight because carbon fiber strength is good, the centrifugal force of blade is smaller, can improve the service life of blade bearing；Blade can also
Higher speed rotation, wind-force are larger；When the product of the present invention is used on railway locomotive, the volume of engine bin can be reduced,
So as to reduce locomotive weight.
The flow of wind during to improve fan work, the blade face of the fan blade sets the back blades of carbon fiber, described
Back blades is arranged on the windward side of the fan blade；Back blades and the angle of the fan blade are 15-25 degree；The accessory lobes
The width of piece is 0.2-0.15 times of fan blade；The length of back blades is 0.25-0.3 times of fan blade；Back blades is arranged on
At the fan blade length of 0.12-0.2 times of fan blade root；The subtask face of fan blade and the working face of secondary fan will
Wind pushes front to, and certain vortex is generated at the back in secondary fan work face, and blast is smaller at this, and then drives more wind
Flow to the main working face of fan blade.
The present invention can be used for the big-and-middle-sized diesel engine radiator of automobile, train and tank.
It is an advantage of the invention that：Due to the fan blade using the manufacture of full carbon fiber, weight saving is a lot, and intensity is again
To raising, ensure that will not damage during blade working, still have when the minimum thickness of trailing edge reaches 0.1-2mm preferably strong
Degree, therefore, the wind energy of trailing edge both sides is gently converged, and effectively reduces noise；In addition, using the structure of back blades, change
The flow direction of wind, improves radiating effect.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the noise and trailing edge minimum thickness relation schematic diagram of carbon fiber blade and high intensity aluminum blades；
In Fig. 1,1 is fan shaft, and 2 be fan blade, and 3 be back blades, and 4 be the main working face of fan blade, 5 secondary fan works
Face, 6 fan blade subtask faces, 7 trailing edges.
Embodiment
The present invention is illustrated below in conjunction with the accompanying drawings, as shown in figure 1, the fan blade 2 of the present invention uses carbon fibre material
It is made, carbon fiber uses high-performance carbon fibers, intensity 2000MPa, modulus 250GPa, it is ensured that the intensity of fan blade.Leaf
The minimum thickness of piece trailing edge 7 reaches 0.1-2mm, and because the minimum thickness of trailing edge 7 is smaller, therefore, the wind of blade both sides is high
It is smaller that speed converges caused noise；Through experiment, the blade of same structure, it is made up respectively of high intensity aluminium and carbon fiber, aluminum leaf
The trailing edge minimum thickness of piece is 5mm, and the thickness of carbon fiber blade is 1.2mm, and under 3000 revs/min of rotating speed, noise can subtract
It is small 3 decibels；And equally all it is the shape identical blade made of carbon fiber, for engine, when trailing edge minimum thickness is big
Noise significantly increases when 2mm, as shown in Figure 2；In Fig. 2, solid line is carbon fiber blade, and dotted line is aluminium alloy vane.
Described trailing edge minimum thickness refers to the vane thickness at trailing edge outermost 1mm.
In addition, to improve the efficiency of fan, the form of back blades 3 is employed, the back blades 3 is arranged on the fan leaf
The windward side of piece 2；Back blades 3 and the angle a of the fan blade 2 are 15-25 degree, and the width of back blades 3 is fan blade 2
0.2-0.15 times；The length of back blades 3 is 0.25-0.3 times of fan blade 2；Back blades 3 is arranged on apart from fan blade 2
The distance L in portion is the 0.12-0.2 times of length of fan blade 2.
It is using the benefit of back blades：During due to fan work, the subtask face 6 of fan blade and the working face of secondary fan
5 push wind to front, and certain vortex is generated at the back in secondary fan work face 5, and blast is smaller at this, and then drive more
The distinguished and admirable main working face 4 to fan blade, so as to ensure that the more efficient of the main working face of fan.Size on back blades
And position, drawn through applicant's many experiments, the position and size can obtain highest efficiency, the same shape with no back blades
The fan blade of shape is compared, and can improve 1.3 times of efficiency.Because if back blades is too high, the face of the main working face of blade is influenceed
Product, it is too low, then do not reach the effect for producing and being necessarily vortexed.
On the manufacture method of blade, Chinese Patent Application No. 201210261878.1 is referred to, will not be repeated here.This
The carbon fiber of invention can use the T700 products of toray.
Claims (2)
- A kind of 1. carbon fiber fan blade for big-and-middle-sized diesel engine radiator, it is characterised in that：The fan blade Material is carbon fiber；To reduce noise, the trailing edge minimum thickness of the fan blade is 0.1-2mm；The leaf of the fan blade Face sets the back blades of carbon fiber, and the back blades is arranged on the windward side of the fan blade；Back blades and the fan leaf The angle of piece is 15-25 degree；The width of the back blades is 0.2-0.15 times of fan blade；The length of back blades is fan leaf 0.25-0.3 times of piece；Back blades is arranged at the fan blade length of 0.12-0.2 times of fan blade root；Fan blade The working face of subtask face and secondary fan pushes wind to front, and certain vortex is generated at the back in secondary fan work face, should It is smaller to locate blast, and then drives more distinguished and admirable main working faces to fan blade；The minimum thickness of trailing edge reaches 0.1- During 2mm, the wind energy of trailing edge both sides is gently converged, and effectively reduces noise.
- A kind of 2. application of the carbon fiber fan blade described in claim 1, it is characterised in that：For automobile, train and tank Big-and-middle-sized diesel engine radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183765.8A CN104832449B (en) | 2014-05-16 | 2015-04-15 | A kind of carbon fiber fan blade for big-and-middle-sized diesel engine radiator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209535X | 2014-05-16 | ||
| CN201410209535.XA CN103953567A (en) | 2014-05-16 | 2014-05-16 | Carbon fiber fan blade for large and medium diesel engine radiator |
| CN201510183765.8A CN104832449B (en) | 2014-05-16 | 2015-04-15 | A kind of carbon fiber fan blade for big-and-middle-sized diesel engine radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104832449A CN104832449A (en) | 2015-08-12 |
| CN104832449B true CN104832449B (en) | 2018-01-19 |
Family
ID=51330886
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410209535.XA Pending CN103953567A (en) | 2014-05-16 | 2014-05-16 | Carbon fiber fan blade for large and medium diesel engine radiator |
| CN201510183765.8A Active CN104832449B (en) | 2014-05-16 | 2015-04-15 | A kind of carbon fiber fan blade for big-and-middle-sized diesel engine radiator |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410209535.XA Pending CN103953567A (en) | 2014-05-16 | 2014-05-16 | Carbon fiber fan blade for large and medium diesel engine radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103953567A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214132A (en) * | 2014-08-12 | 2014-12-17 | 苏州通力电气有限公司 | Energy-saving submersible pump |
| CN104154031A (en) * | 2014-08-12 | 2014-11-19 | 苏州通力电气有限公司 | Energy-saving impeller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4512718A (en) * | 1982-10-14 | 1985-04-23 | United Technologies Corporation | Tandem fan stage for gas turbine engines |
| CN201318325Y (en) * | 2008-12-01 | 2009-09-30 | 漳州灿坤实业有限公司 | Fan vane group |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI101565B (en) * | 1997-01-17 | 1998-07-15 | Flaekt Woods Ab | Evaporator fan and its impeller |
| DE102010062301A1 (en) * | 2010-12-01 | 2012-06-06 | Behr Gmbh & Co. Kg | Axial |
-
2014
- 2014-05-16 CN CN201410209535.XA patent/CN103953567A/en active Pending
-
2015
- 2015-04-15 CN CN201510183765.8A patent/CN104832449B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4512718A (en) * | 1982-10-14 | 1985-04-23 | United Technologies Corporation | Tandem fan stage for gas turbine engines |
| CN201318325Y (en) * | 2008-12-01 | 2009-09-30 | 漳州灿坤实业有限公司 | Fan vane group |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103953567A (en) | 2014-07-30 |
| CN104832449A (en) | 2015-08-12 |
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Effective date of registration: 20190704 Address after: 110000 No. 82B Shenbei Road, Shenyang New District, Shenyang City, Liaoning Province Patentee after: Shenyang innovation Huaxia Machinery Manufacturing Co., Ltd. Address before: 11 006 No. 5-3-2-1, 61 Mudanjiang Street, Huanggu District, Shenyang City, Liaoning Province Patentee before: Tong Baoyi |
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| TR01 | Transfer of patent right |