CN2404762Y - Automobile inclined or shape variable flow deflector - Google Patents
Automobile inclined or shape variable flow deflector Download PDFInfo
- Publication number
- CN2404762Y CN2404762Y CN 99241074 CN99241074U CN2404762Y CN 2404762 Y CN2404762 Y CN 2404762Y CN 99241074 CN99241074 CN 99241074 CN 99241074 U CN99241074 U CN 99241074U CN 2404762 Y CN2404762 Y CN 2404762Y
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- automobile
- deflecting plate
- speed
- shape
- utility
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- Expired - Fee Related
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Abstract
The utility model relates to an automobile inclined or shape changing flow deflector. The lower part forms a curved surface shape, the utility model is arranged at the tail part of an automobile, and the slope angle and the shape of the utility model is controlled by a control mechanism. The sizes, the shapes, and the angles of the utility model can be changed with the change of the automobile speed, and thereby, the relationship between the automobile speed and the axle load can be optimized. When the automobile is at a high speed, the axle load is increased, the automobile adhesive power is improved, and the utility model is favorable for the power performance, the braking performance, and the control stability of the automobile at a high speed; when the automobile is at a medium low speed, the axle load is smaller, the air resistance coefficient is less, and the utility model is favorable for the power performance and the economy; when the automobile is braked, the air resistance and the axle load can be increased.
Description
The utility model relates to automotive field, relates to the deflecting plate that relates to be installed in automobile tail in more detail.
Automobile during the raising speed of a motor vehicle, because the variation of automobile axle load is little, or owing to generation buoyancy makes axle load decline, causes automobile adhesive ability to reduce, thereby influences the braking ability and the road-holding property of automobile in the process of moving, causes vehicle body to be sent out and floats.
The automobile axle load is that automobile acts on the application force on its wheel shaft, is generally equal to its gravity.But the effect that produces because of the Pneu characteristic of automobile may cause the axle load sum less than the gravity of car or greater than the gravity of car.Adhesive ability is by wheel and ground effects and the application force that produces, and adhesive ability is directly proportional with axle load, and adhesive ability must be more than or equal to propulsive effort.Dynamic property is meant that automobile keeps maximum speed, has and quicken and gradeability, and dynamic property relies on the power of automobile on the one hand, and the tractive force that produces of its power is limited by adhesive ability again on the other hand.Braking ability is meant that automobile has the rapid reduction speed of a motor vehicle and keeps direction to stablize and keep the ability of long sloping constant speed.Road-holding property is meant that automobile has the ability that the manipulative capability of turning to does not produce sideslip etc.
In order to address this problem, prior art is in the automobile tail mounting guiding board, utilize the air dynamic behaviour of the curved surface body of deflecting plate, the axle load of automobile when increasing high speed, improve the adhesive ability of automobile, prevent that automobile is unstable, the riding stability when helping high speed, road-holding property, insensitivity.Existing automobile deflecting plate is the afterbody that is fixed on automobile by attaching parts, and its position, direction, shape are changeless.Its principle of work is: during running car, when air from deflecting plate, when following two sides are flow through, starting point is at the head of deflecting plate, terminal point is at the afterbody of deflecting plate, horizontal displacement equates, because the upper side of deflecting plate is the plane substantially, downside is a curved surface, therefore, the distance distance that air flows through at downside causes the density of air of deflecting plate upper side big greater than upper side, the air pressure height, following density of air is little, air pressure is low, because this air pressure characteristic must cause air that deflecting plate is had a downward application force, thereby the trend of the axle load that increases automobile is arranged.The size of this application force with influenced by following factors: 1, air flows through the speed of deflecting plate, and this speed dependent is in automobile speed; 2, the plane degree on the curved surface degree of crook of deflecting plate downside and top thereof; 3, the area of conter of deflecting plate on force direction; 4, the area of conter of deflecting plate on velocity reversal.
As seen the effect of deflecting plate is when the speed of a motor vehicle improves, and makes the corresponding increase of axle load of automobile, causes adhesive ability also to improve thereupon, thereby helps improving dynamic property, braking ability and the road-holding property of automobile.
But existing automobile deflecting plate because its position, shape and direction are changeless, certainly exists following shortcoming when the speed of a motor vehicle changes:
1, because during middle low speed, the braking ability and the operational stability of automobile are secure, need not increase axle load, more help economy and dynamic property this moment.But then must increase axle load during high speed, to improve braking ability and operational stability.Existing deflecting plate is because position, shape, direction are constant, though the increase of axle load is relevant with the speed of a motor vehicle, but the two is not best matching relationship, because when increasing axle load, the aerodynamic drag factor of automobile must increase, the medium speed of a motor vehicle is the speed of a motor vehicle commonly used of automobile, at this moment, because the increase of the aerodynamic drag factor of automobile can influence the dynamic property and the economy of the interval automobile of this speed of a motor vehicle;
2, the axle load of glancing impact because the application force that acts on the deflecting plate reduces, promptly descends along with the decline of the speed of a motor vehicle, is unfavorable for braking ability and road-holding property;
The purpose of this utility model is the shortcoming at the prior art existence, the automobile deflecting plate of a kind of leaning angle or shape variable is provided, the size of this automobile deflecting plate, shape, angle can be along with the variation and the variation of the speed of a motor vehicle, thereby optimize the relation between automobile speed and the axle load, when high speed, increase load on axle journals, improve the adhesive ability of automobile, the dynamic property of automobile, braking ability, road-holding property when helping high speed; During the low speed of a motor vehicle, axle load is less, aerodynamic drag factor is also less, helps dynamic property, the economy of automobile; Glancing impact can increase air resistance and axle load.
The automobile deflecting plate of leaning angle of the present utility model or shape variable, the bottom is curved, is installed in automobile tail, is controlled by control mechanism.
Automobile deflecting plate of the present utility model can be by hinge or axle mounting at automobile tail.
The employed control mechanism of the utility model can be hand gear or motor drive mechanism or hydraulic gear.
The automobile deflecting plate of leaning angle of the present utility model or shape variable can be indeformable deflecting plate, adjusts its leaning angle by control mechanism.
The automobile deflecting plate of leaning angle of the present utility model or shape variable can also be made of two or two above patchs, joins between this patch to forming the deflecting plate bottom, and patch changes the lower curved face shape by stretching or shrink along the curved surface direction.Adjust its leaning angle and/or shape by control mechanism.
Above-mentioned patch can be the curved surface of Any shape, for example rectangle, circle, ellipse, irregularly shaped etc.; When patch is identical by shape, inside face is spill flaky material constitutes, best results.
Automobile deflecting plate of the present utility model can be made corresponding change according to the variation of the speed of a motor vehicle:
1, the inclination angle of automobile deflecting plate changes.Hand gear or motor drive mechanism or hydraulic gear are according to the inclination angle of mode conversion deflecting plates such as the speed of a motor vehicle and braking thereof;
2, the profile of automobile deflecting plate changes.For by two or two deflecting plates that above patch constitutes, hand gear or motor drive mechanism or hydraulic gear reach the profile of conversion deflecting plate according to the lower curved face radian of mode conversion deflecting plates such as the speed of a motor vehicle and braking thereof;
3, the change of the inclination angle of automobile deflecting plate and profile for by two or two deflecting plates that above patch constitutes, realizes in conjunction with above-mentioned 1,2 modes.
The utility model compared with prior art has following advantage:
1, can regulate the axle load of automobile according to the speed of a motor vehicle, the adhesive ability in the time that high speed can being increased, the dynamic property of automobile when helping bringing into play high speed;
2, can regulate the axle load of automobile according to the speed of a motor vehicle, the adhesive ability in the time that high speed can being increased, the braking ability of automobile and insensitivity when helping improving high speed;
3, can regulate the axle load of automobile according to the speed of a motor vehicle, the adhesive ability in the time that high speed can being increased, the operational stability of automobile when helping improving high speed;
4, in, during low speed, the shape and the orientation of deflecting plate remain unchanged, and can not influence any performance of automobile; In, during low speed, do not need by increasing braking ability and the road-holding property that axle load improves automobile, but therefore help improving in the automobile, dynamic property and economy during low speed;
5, the axle load of glancing impact descends along with the decline of the speed of a motor vehicle.The automobile deflecting plate can be in the direction and the angle of glancing impact conversion deflecting plate, even make that the speed of a motor vehicle descends in the scope more than the safety speed of a motor vehicle, less variation only takes place axle load, increases frontal resistance simultaneously, improves vehicle brake efficacy.
Fig. 1 is the structural representation of the automobile deflecting plate of leaning angle of the present utility model or shape variable.
Fig. 2 is that the automobile deflecting plate of leaning angle of the present utility model or shape variable is constant in profile, the structural representation under the angle of inclination may situation.
Fig. 3 is the structural representation of the automobile deflecting plate of the leaning angle of the utility model shape variable or shape variable.
Fig. 4 is that the variable deflecting plate of Fig. 3 is constant at leaning angle, the structural representation under the profile variation situation.
Fig. 5 is the structural representation of variable deflecting plate under leaning angle, profile variation situation of Fig. 3.
Below by embodiment and accompanying drawing the utility model is done further narration.
Embodiment
As shown in Figure 1, the automobile deflecting plate 1 of leaning angle of the present utility model or shape variable, the bottom is curved, is installed in automobile 3 afterbodys by hinge 2, and the electrical motor 4-1 of motor drive mechanism 4 drives bent axle 4-2, by bent axle 4-2 Control of Automobile deflecting plate 1.
As shown in Figure 2, the profile of automobile deflecting plate 1 is constant, and motor drive mechanism is adjusted its leaning angle, the speed of a motor vehicle hour, the angle of inclination beta of variable deflecting plate and horizontal surface is near 0; When the speed of a motor vehicle was big, it is big that the angle of inclination beta of automobile deflecting plate and horizontal surface becomes.
As shown in Figure 3, the automobile deflecting plate 1 of leaning angle of the present utility model or shape variable is made of two above patch 1-1, and the inside face of this patch meets a portable bar 1-2, and the other end of portable bar 1-2 is connected with variable deflecting plate top.Joining between this patch forms the deflecting plate bottom, and patch is by stretching or shrink change lower curved face shape along the curved surface direction.The patch that this example is used is the oblong iron plate that inside face is spill.
As shown in Figure 4, the shape variable of automobile deflecting plate 1, motor drive mechanism are regulated its profile, the speed of a motor vehicle hour, automobile deflecting plate lower external face area is less; When the speed of a motor vehicle was big, it is big that automobile deflecting plate lower external face area becomes.
As shown in Figure 5, the profile of automobile deflecting plate 1 and angle of inclination may, motor drive mechanism is regulated its profile and leaning angle, the speed of a motor vehicle hour, automobile deflecting plate lower external face area is less, the angle of inclination beta of automobile deflecting plate and horizontal surface is near 0; When the speed of a motor vehicle was big, it is big that automobile deflecting plate lower external face area becomes, and it is big that the angle of inclination beta of automobile deflecting plate and horizontal surface becomes.
Claims (6)
1, the automobile deflecting plate of a kind of leaning angle or shape variable is characterized in that the bottom is curved, is installed in automobile tail, is controlled by control mechanism.
2,, it is characterized in that described control mechanism can be hand gear or motor drive mechanism or hydraulic gear according to the automobile deflecting plate of described leaning angle of claim 1 or shape variable.
3, according to the automobile deflecting plate of claim 1 or 2 described leaning angles or shape variable, it is characterized in that described automobile deflecting plate by hinge or axle mounting at automobile tail.
4,, it is characterized in that described automobile deflecting plate is indeformable deflecting plate, adjusts its leaning angle by control mechanism according to the automobile deflecting plate of claim 1 or 2 or 3 described leaning angles or shape variable.
5, according to the automobile deflecting plate of claim 1 or 2 or 3 described leaning angles or shape variable, it is characterized in that described automobile deflecting plate is made of two or two above patchs, join between this patch and form the deflecting plate bottom, patch changes the lower curved face shape by stretching or shrink along the curved surface direction, adjusts its leaning angle and/or shape by control mechanism.
6,, it is characterized in that described is that patch is the flaky material that shape is identical, inside face is spill according to the automobile deflecting plate of described leaning angle of claim 5 or shape variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241074 CN2404762Y (en) | 1999-12-17 | 1999-12-17 | Automobile inclined or shape variable flow deflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241074 CN2404762Y (en) | 1999-12-17 | 1999-12-17 | Automobile inclined or shape variable flow deflector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2404762Y true CN2404762Y (en) | 2000-11-08 |
Family
ID=34028001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99241074 Expired - Fee Related CN2404762Y (en) | 1999-12-17 | 1999-12-17 | Automobile inclined or shape variable flow deflector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2404762Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120416A (en) * | 2010-01-07 | 2011-07-13 | 福特全球技术公司 | Method and device for adjusting cooling airflow of automotive vehicle |
| CN1891556B (en) * | 2005-06-29 | 2011-10-05 | F.波尔希名誉工学博士公司 | Air flow guiding device for a vehicle |
-
1999
- 1999-12-17 CN CN 99241074 patent/CN2404762Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1891556B (en) * | 2005-06-29 | 2011-10-05 | F.波尔希名誉工学博士公司 | Air flow guiding device for a vehicle |
| CN102120416A (en) * | 2010-01-07 | 2011-07-13 | 福特全球技术公司 | Method and device for adjusting cooling airflow of automotive vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |