CN103863420A - Air flow guiding device for reducing truck wind resistance - Google Patents
Air flow guiding device for reducing truck wind resistance Download PDFInfo
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- CN103863420A CN103863420A CN201210526239.3A CN201210526239A CN103863420A CN 103863420 A CN103863420 A CN 103863420A CN 201210526239 A CN201210526239 A CN 201210526239A CN 103863420 A CN103863420 A CN 103863420A
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- flexible fluid
- air guide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/82—Elements for improving aerodynamics
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Abstract
The invention relates to an air flow guiding device for reducing truck wind resistance. A truck comprises a cab and a carriage; a first flow guiding mechanism with a streamline counter is arranged above the cab; a second flow guiding mechanism with a streamline counter is at least arranged above the carriage; the first flow guiding mechanism is in sliding connection with the second flow guiding mechanism; the second flow guiding mechanism also comprises a flexible flow guiding part which at least covers the upper portion of the carriage and a frame body which supports the flexible guiding part. According to the air flow guiding device for reducing the truck wind resistance, the truck wind resistance is effectively reduced due to a streamline integral structure which confirms to aerodynamics and is formed by the first flow guiding mechanism and the second flow guiding mechanism and accordingly truck oil consumption is greatly reduced and the beneficial effects of energy saving and emission reducing are achieved. The oil consumption of the truck which uses the air flow guiding device is reduced by more than 10 % compared with the truck does not use the air flow guiding device.
Description
Technical field
The present invention relates to a kind of air guide structure, particularly relate to a kind of air guide device that reduces truck windage.
Background technology
Current, a lot of users in buying truck, except price and vehicle performance concern no more than truck oil consumption; And the age of skyrocketing in this oil price, when speaking of oil consumption problem, people are always entangled with in problems such as tare, engine technology, gearbox gear compare.In fact all the time a lot of people all to have ignored a problem be exactly air resistance.
Some user thinks that the air resistance of vehicle body is not sufficient to cause very large oil consumption, and this is actually mistaken ideas.Because studies confirm that, in the time of high vehicle speeds, maximum resistance all derives from air; And experiment shows, when the speed of a motor vehicle is higher than 80km per hour time, just there is the oil consumption of half to be nearly used for overcoming air resistance.The speed of a motor vehicle is higher, and the air resistance that vehicle is subject to is just larger, and square being directly proportional of the added value of air resistance and speed of a motor vehicle added value that is to say, the speed of a motor vehicle improves twice, and air resistance can corresponding raising four times.
Air resistance is topmost branch in aerodynamics, so-called aerodynamics, research be all processes of the observable air-flow activity around object or by object.In the process of moving, the air resistance being subject to is made up of four parts truck:
1: skin resistance, refer to the friction drag producing when air-flow passes through vehicle external surface, this resistance is mainly by car body profile, and be arranged on the parts outside car body, as the resistance that back mirror, Door Handle, car light, headstock ornamental trimming etc. cause interference in air flow, this resistance can produce considerable influence to superimposed trailer and the isometric size vehicle of city motor bus.Skin resistance, pressure drag, induced drag.
2: pressure drag, the size of pressure drag depends on the size with turbulent region, particularly the size of afterbody turbulent region.Become turbulent some place at air-flow, the region of no pressure of meeting forming section, has so just produced pressure drag.In the time that truck designs, design engineer need to make great efforts to reduce turbulent flow surface, thereby reduces region of no pressure area.
3: induced drag, it is the part as pressure drag, is different the causing of air pressure due to top in Vehicle Driving Cycle process and bottom, pressure drag and induced drag be proportion maximum in total air resistance.
4: car internal resistance is because the resistance that air-flow causes by radiator, driving engine etc. in headstock.
Therefore, advocate energy-conserving and environment-protective, reducing the society discharging, be necessary for very much a kind of device that reduces windage of haulage truck design that oil consumption is higher, quantity is huge.
Summary of the invention
The object of the invention is to propose a kind of structure comparatively simple, reduce windage successful, fuel economy better, the air guide device of lower, the convenient reduction truck windage of installing of cost.
For achieving the above object, the invention provides a kind of air guide device that reduces truck windage, described truck comprises operator's compartment and compartment, above described operator's compartment, be provided with first deflector with sweep outline, at least above described compartment, be provided with second deflector with sweep outline, smooth connection between described the first deflector and the second deflector, and described the second deflector also comprises the flexible fluid-directing part that at least covers top, described compartment and the support body that supports described flexible fluid-directing part.
Preferably, described air guide device also comprises the taking-up device between described the first deflector and the second deflector, is provided with spool in taking-up device, and the spool of at least part of described flexible fluid-directing part in described taking-up device furls or stretch.
More preferably, described taking-up device is provided with the Bringing-back mechanism that furls of flexible fluid-directing part, and described support body is the swing arm type structure with actuating device, and described flexible fluid-directing part stretches under the driving of described support body, or furls under the described driving that furls Bringing-back mechanism.
Preferably, described support body comprises at least one pack support, described support supports described flexible fluid-directing part at two or more contact positions and is sweep outline, is also provided with at least local fan-shaped flexibility or the elasticity conducting element that be between each support of described support body.
More preferably, described support at least has L-type radian in part.
Further, described the second deflector is arranged on rear or the below of the first deflector after shrinking.
Preferably, described the second deflector also comprises the afterbody conducting element with sweep outline that is arranged on rear, described compartment, and described afterbody conducting element and smooth connection between the flexible fluid-directing part above compartment.
Preferably, described support body at least comprises compartment upper bracket and compartment posterior bracket, the flexible fluid-directing part that the upper bracket support of described compartment is positioned at top, compartment is sweep outline, and the flexible fluid-directing part that posterior bracket support in described compartment is positioned at rear portion, compartment is sweep outline.
More preferably, described afterbody conducting element is air conducting board component.
Preferably, described flexible fluid-directing part is the full flexible fluid-directing structure of canvas fabric formula, or is telescopic step by step semi-rigid flow-guiding structure.
Based on technique scheme, advantage of the present invention is:
What the first deflector by smooth connection of the present invention and the second deflector formed meets aerodynamic streamline integral structure, can effectively reduce the windage of truck, thereby realize significantly reducing of truck oil consumption, reaches the beneficial effect of energy-saving and emission-reduction.Use the truck of air guide device of the present invention with respect to not using truck of the present invention, its oil consumption can reduce more than 10%, and this,, for the great haulage truck of oil consumption own, has great economic benefit and social benefit.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the first embodiment of the present invention;
Fig. 2 is the structural representation of the second embodiment of the present invention;
Fig. 3-1 is the backside perspective view of structure shown in Fig. 2;
Fig. 3-2 are the back view of structure shown in Fig. 3-1;
Fig. 4 is the structural representation of the third embodiment of the present invention;
Fig. 5 is the structural representation of the 4th kind of embodiment of the present invention;
Fig. 6 is the structural representation of the 5th kind of embodiment of the present invention;
Fig. 7 is the structural representation of the 6th kind of embodiment of the present invention;
Fig. 8 does not do any velocity field cloud charts that resistance is processed of falling after slag-soil truck is fully loaded with;
Fig. 9 is that slag-soil truck adds the velocity field cloud charts after truck box canopy;
Figure 10 is the velocity field cloud charts adopting after the present invention.
Detailed description of the invention
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Referring to Fig. 1, Fig. 2, Fig. 3-1, Fig. 3-2, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the various preferred embodiments of a kind of air guide device that reduces truck windage of the present invention shown in it.
Embodiment 1:
First referring to Fig. 1, truck of the present invention comprises operator's compartment 1 and compartment 2, this compartment 2 can be hermetic type compartment, also can be the open-type vehicle carriage of goods transport or material transportation, above described operator's compartment 1, be provided with first deflector 3 with sweep outline, this first deflector 3 can be the various guiding devices with sweep outline in prior art, and in the present invention, the first deflector 3 is preferably flexible fluid-directing part; And, the present invention is at least provided with second deflector 4 with sweep outline above described compartment 2, smooth connection between described the first deflector 3 and the second deflector 4, formation meets the streamline integral structure of aerodynamic reduction truck windage, as shown in Figure 1, and described the second deflector 4 also comprise the flexible fluid-directing part 5 that at least covers 2 tops, described compartment and the support body 6 that supports described flexible fluid-directing part 5.
Embodiment 2:
Referring to Fig. 2, a kind of embodiment of the present invention shown in it, in the present embodiment, described air guide device also comprises the taking-up device 7 between described the first deflector 3 and the second deflector 4, in taking-up device 7, be provided with spool (not shown), the spool of at least part of described flexible fluid-directing part 5 in described taking-up device 7 furls or stretches, in embodiment illustrated in fig. 2, for the first deflector 3 in the not shown embodiment 1 in position of demonstration taking-up device 7, but the present embodiment still can comprise the first described deflector 3.In the time not using, the spool of flexible fluid-directing part 5 in taking-up device 7 furl the rear of the first deflector 3 or below, it should be noted that: " front " of the present invention and " afterwards " refer to respectively the direction that truck advances and the direction retreating; When use, by described support body 6, by flexible fluid-directing part 5, stretch at the rear along the spool in taking-up device 7 to truck, until flexible fluid-directing part 5 at least covers the top in described compartment 2, form the second deflector 4 of the present invention, make the overall truck for sweep outline can effectively reduce under steam its skin resistance.In the present embodiment, described support body 6 can be fixed on for top the linear pattern support at flexible fluid-directing part 5 edges, and the bottom of support body 6 can be fixed on the both sides in compartment 2, as shown in Figure 2.
Preferably, what described taking-up device 7 was provided with flexible fluid-directing part furls Bringing-back mechanism (not shown), and described support body 6 is for having the swing arm type structure of actuating device (not shown), as shown in Fig. 2 and Fig. 3-1, Fig. 3-2; Certainly, in order to reduce the quantity of mechanism, can, by manual mode, described flexible fluid-directing part 5 at least be covered to the top in described compartment 2, form the second deflector 4 of the present invention; In the present embodiment, in order to increase work efficiency and automation performance, described flexible fluid-directing part 5 stretches under the driving of described support body 6, or furls under the described driving that furls Bringing-back mechanism.Actuating device of the present invention can be connected with the control mechanism of truck, realizes chaufeur and can realize furling of flexible fluid-directing part 5 or stretch at operator's compartment.
Embodiment 3:
Continue referring to Fig. 1 and Fig. 3-1, Fig. 3-2, described support body 6 comprises at least one pack support, a pack support of the present invention can comprise respectively one, the supporting structure of two or more monomers, has comprised in the present embodiment the support body 6 that multiple support units form, as shown in Figure 1, described support supports described flexible fluid-directing part 5 at two or more contact positions and is sweep outline, particularly, described support body 6 can local location be arc line type structure 63, and at the arc line type place of support body by multiple contact position supporting flexible conducting elements 5, in Fig. 3-1, for being shown, arc line type structure 63 do not draw the part of flexible fluid-directing part 5 boundary positioies, but be understood that to those skilled in the art, the corner, top of support body 6 is arc line type structure 63, and arc line type structure 63 is closely connected with flexible fluid-directing part 5 by multiple contact positions, and supporting flexible conducting element 5 is sweep outline in the direction perpendicular to truck axis, as shown in Fig. 3-2.Meanwhile, because the support body 6 in the present embodiment has comprised the supporting structure that multiple monomers form, make thus flexible fluid-directing part 5 be sweep outline in the direction of truck axis, as shown in Fig. 3-2, be more conducive to reduce windage.
Further, in the present embodiment, after described the second deflector 4 shrinks, be arranged on rear or the below of the first deflector 3, be convenient to thus the use in compartment 2, for example: the loading or the removal that carry out material.
Embodiment 4:
Referring to Fig. 4, another embodiment of the present invention shown in it, the key distinction of the present embodiment and above-described embodiment is: described the second deflector 4 also comprises the afterbody conducting element 8 with sweep outline that is arranged on 2 rears, described compartment, as shown in Figure 4, and described afterbody conducting element 8 and smooth connection between the flexible fluid-directing part 5 above compartment, thereby realize the reduction of compartment 2 overall windages, thereby reduce all sidedly the skin resistance in travelling truck, pressure drag and induced drag, in the present embodiment, described afterbody conducting element 8 is also for flexible material is made, preferably, it can be the extendible portion of flexible fluid-directing part 5.More preferably, in the present embodiment, described support body 6 at least comprises compartment upper bracket 61 and compartment posterior bracket 62, the flexible fluid-directing part that upper bracket 61 supports in described compartment are positioned at top, compartment is sweep outline, and the flexible fluid-directing part that posterior bracket 62 supports in described compartment are positioned at rear portion, compartment is sweep outline.
For the ease of the folding and unfolding of described compartment upper bracket 61 and compartment posterior bracket 62, the bottom of compartment upper bracket 61 and compartment posterior bracket 62 coaxially can be arranged on to the both sides in compartment 2, " bottom " of the present invention refers to: the bottom that is support body with respect to the far-end of supporting flexible conducting element 5 positions, the position of supporting flexible conducting element 5 is top.
Certainly, also the bottom of compartment upper bracket 61 and the bottom of compartment posterior bracket 62 can be separately positioned on to different position, 2 both sides, compartment, and drive respectively described flexible fluid-directing part 5 successively to furl or stretching routine.
Embodiment 5:
Referring to Fig. 5, another embodiment of the present invention shown in it, the difference of the present embodiment and above-described embodiment 4 is: the air conducting board component (structures as shown in 2 afterbodys of compartment in Fig. 5) that described afterbody conducting element 8 is rigidity.The structure of the present embodiment, can reduce pressure drag, the induced drag of truck in advancing equally effectively.
It should be noted that: flexible fluid-directing part 5 of the present invention not only can be for being similar to the full flexible fluid-directing structure of the fabric formulas such as canvas, can also be sheet telescopic semi-rigid flow-guiding structure step by step.When adopting sheet step by step when telescopic semi-rigid flow-guiding structure, this flexible fluid-directing part 5 still can be under the driving of support body 6, covers step by step successively top or the rear in compartment 2.
Embodiment 6:
Referring to Fig. 6, the difference of the present embodiment and above-described embodiment is: between each support of described support body 6, be also provided with at least local fan-shaped flexibility or the elasticity conducting element 63 that be, this flexibility or elasticity conducting element 63 can make truck sidepiece also have corresponding deflector, thereby make the top of truck of the present invention and sidepiece all have the guiding device that reduces windage, the windage of car load is further reduced.
Embodiment 7:
Referring to Fig. 7, the difference of the present embodiment and above-described embodiment is: described support body 6 comprises compartment upper bracket 61 and compartment posterior bracket 62, wherein, between each support of compartment upper bracket 61 and between each support of compartment posterior bracket 62, be equipped with at least local fan-shaped flexibility or the elasticity conducting element 63 that be, this flexibility or elasticity conducting element 63 can make truck sidepiece also have corresponding deflector, thereby all there is the guiding device that reduces windage at the top, sidepiece and the rear portion that make truck of the present invention, and the windage of car load is further reduced.
Referring to Fig. 8, Fig. 9 and Figure 10, wherein illustrating respectively that slag-soil truck does not do after fully loaded anyly falls velocity field cloud charts that resistance processes, adds the velocity field cloud charts after truck box canopy and adopt the velocity field cloud charts after the deflector (comprising the first deflector 3 and the second deflector 4) in the embodiment of the present invention 1.
Define according to air resistance coefficient: air resistance coefficient=front air draught × 2 ÷ (density of air × headstock frontal area × speed of a motor vehicle square), and Windage loss by experiment, the air resistance coefficient value and the aeroperformance that calculate above each scheme are improved as:
Can find out from above experimental result and data analysis, adopt the present invention to improve effect to the aerodynamic drag of slag-soil truck extremely obvious.
Particularly, adopt shown in Figure 10 of the present invention and reduce after the device of truck windage, the air resistance coefficient of slag-soil truck can be reduced to 0.735 from 0.857, air resistance coefficient has declined 0.122, has approximately declined 14.2% altogether.
Through further measuring, the embodiment of the present invention 4 and embodiment 5, and embodiment 6 and embodiment 7 have the effect of better reduction windage.
Obviously, those of ordinary skill in the art, can with a kind of air guide device that reduces truck windage of the present invention, form the air conducting equipment of all kinds power actuated vehicle.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present invention; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request protection of the present invention.
Claims (10)
1. one kind is reduced the air guide device of truck windage, described truck comprises operator's compartment (1) and compartment (2), it is characterized in that: be provided with first deflector (3) with sweep outline in the top of described operator's compartment (1), at least be provided with second deflector (4) with sweep outline in the top of described compartment (2), smooth connection between described the first deflector (3) and the second deflector (4), and described the second deflector (4) also comprises the flexible fluid-directing part (5) that at least covers top, described compartment (2) and the support body (6) that supports described flexible fluid-directing part (5).
2. air guide device according to claim 1, it is characterized in that: described air guide device also comprises the taking-up device (7) being positioned between described the first deflector (3) and the second deflector (4), taking-up device is provided with spool in (7), and the spool of at least part of described flexible fluid-directing part (5) in described taking-up device (7) furls or stretch.
3. air guide device according to claim 2, it is characterized in that: described taking-up device (7) is provided with the Bringing-back mechanism that furls of flexible fluid-directing part, described support body (6) is for having the swing arm type structure of actuating device, described flexible fluid-directing part (5) stretches under the driving of described support body (6), or furls under the described driving that furls Bringing-back mechanism.
4. air guide device according to claim 1, it is characterized in that: described support body (6) comprises at least one pack support, described support supports described flexible fluid-directing part (5) at two or more contact positions and is sweep outline, is also provided with at least local fan-shaped flexibility or the elasticity conducting element (63) that be between each support of described support body (6).
5. air guide device according to claim 4, is characterized in that: described support at least part has L-type radian.
6. air guide device according to claim 5, is characterized in that: described the second deflector (4) is arranged on rear or the below of the first deflector (3) after shrinking.
7. air guide device according to claim 1, it is characterized in that: described the second deflector (4) also comprises the afterbody conducting element (8) with sweep outline that is arranged on rear, described compartment (2), and described afterbody conducting element (8) and be positioned at smooth connection between the flexible fluid-directing part (5) of compartment top.
8. according to the air guide device described in claim 4 or 7, it is characterized in that: described support body (6) at least comprises compartment upper bracket (61) and compartment posterior bracket (62), the flexible fluid-directing part that described compartment upper bracket (61) support is positioned at top, compartment is sweep outline, and the flexible fluid-directing part that described compartment posterior bracket (62) support is positioned at rear portion, compartment is sweep outline.
9. air guide device according to claim 7, is characterized in that: described afterbody conducting element (8) is air conducting board component.
10. air guide device according to claim 1, is characterized in that: the full flexible fluid-directing structure that described flexible fluid-directing part (5) is canvas fabric formula, or be telescopic step by step semi-rigid flow-guiding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210526239.3A CN103863420A (en) | 2012-12-07 | 2012-12-07 | Air flow guiding device for reducing truck wind resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210526239.3A CN103863420A (en) | 2012-12-07 | 2012-12-07 | Air flow guiding device for reducing truck wind resistance |
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| Publication Number | Publication Date |
|---|---|
| CN103863420A true CN103863420A (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210526239.3A Pending CN103863420A (en) | 2012-12-07 | 2012-12-07 | Air flow guiding device for reducing truck wind resistance |
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| CN (1) | CN103863420A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386147A (en) * | 2014-11-15 | 2015-03-04 | 江苏海鹏特种车辆有限公司 | Air flow guide mechanical structure of middle fuselage of aircraft |
| US11912116B2 (en) | 2019-03-26 | 2024-02-27 | European Trailer Systems Gmbh | Tarpaulin superstructure |
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| WO2012010922A1 (en) * | 2010-07-22 | 2012-01-26 | Renault Trucks | Vehicle having a deformable roof for aerodynamics improvement |
| CN102387956A (en) * | 2009-03-30 | 2012-03-21 | 约斯特-沃克有限公司 | System for reducing the air resistance of a truck |
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| CN1590148A (en) * | 2004-05-18 | 2005-03-09 | 王峻 | Reeling type automobile sunshade inclosure |
| US20080211259A1 (en) * | 2007-03-02 | 2008-09-04 | Daniel Nadeau | Teardrop travel trailer |
| GB2443035A (en) * | 2007-04-16 | 2008-04-23 | Don Bur | Trailer or container with a curved roof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386147A (en) * | 2014-11-15 | 2015-03-04 | 江苏海鹏特种车辆有限公司 | Air flow guide mechanical structure of middle fuselage of aircraft |
| CN104386147B (en) * | 2014-11-15 | 2016-09-07 | 江苏海鹏特种车辆有限公司 | Fuselage transport vehicle air conducting frame for movement in aircraft |
| US11912116B2 (en) | 2019-03-26 | 2024-02-27 | European Trailer Systems Gmbh | Tarpaulin superstructure |
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Application publication date: 20140618 |