• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. Heavy vehicle (1) comprising a cabin (2) equipped with a front pillar (7) and an aerodynamic drag reduction system (8) that can be fixed on the front pillar (7) and configured to conduct a flow of air that impacts said windshield (6) of the vehicle (1) around the upright (7) and along a side wall (4) of the vehicle (1). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2834150A1
    申请号:ES202031240
    申请日:2020-12-14
    公开日:2021-06-16
    发明作者:Luca Brondolo
    申请人:Iveco SpA；
    IPC主号:
    专利说明:

    [0004] Cross reference to related patent applications
    [0005] The present application claims the priority of Italian Patent Application No. 102019000024096 filed on December 16, 2019, the content of which is incorporated herein by reference.
    [0006] Technical field
    [0007] The present invention relates to a system for reducing the aerodynamic drag of a vehicle, in particular a system for reducing the aerodynamic drag for a heavy vehicle, for example a truck.
    [0008] Known state of the art
    [0009] As is known, heavy vehicles such as trucks comprise a cabin provided with a windscreen and a pair of side windows.
    [0010] The windshield and the windows are housed in respective openings defined in the structure of the cabin frame that comprises a front pillar, which defines a lateral support edge of the windshield and known as "pillar A".
    [0011] In many truck models this front pillar defines a box shape between the side wall that defines the side opening for the side window and the windshield.
    [0012] This square shape provides strong aerodynamic resistance due to the vortices that are generated by the detachment of the air flow that hits the windshield and passes laterally around the A-pillar.
    [0013] It would be possible to reduce this resistance by modifying the shape of the pillar A itself, however this procedure is obviously impractical in existing vehicle models.
    [0015] Consequently, there is a need to be able to reduce losses due to aerodynamic resistance in a heavy vehicle.
    [0016] The aim of the present invention is to satisfy these needs in an optimized and economical way.
    [0017] Summary of the invention
    [0018] This objective is achieved with a heavy vehicle 1 comprising a cabin 2 provided with a front upright 7 configured to define laterally part of the support for a windshield 6 of the vehicle and of at least part of a side wall 4 of the cabin 2, the vehicle 1 comprises an aerodynamic drag reduction system 8 that can be attached to the front pillar 7 and configured to conduct a flow of air impacting the windshield 6 around the pillar 7 and along the side wall 4, in which the The aerodynamic drag reduction system 8 comprises at least one wall 9 configured to be fixed at a predetermined distance to the upright 7, said wall 9 with the upright 7 defining a passage 10 for air impacting on the windshield 6,
    [0019] wherein the wall 9 is fixed on the upright 7 by interposing a plurality of spacers 13 housed in the passage 10,
    [0020] said spacers 13 are profiled to minimize their friction with the air flow and are spaced from each other by a distance between 10 mm and 70 mm.
    [0021] In particular, the wall 9 does not protrude with respect to a plane n of the windscreen and is advantageously curved.
    [0022] Preferably, the passage 10 has a constant section between an inlet facing the windshield 6 and an outlet facing the wall 4.
    [0023] According to a preferred form, the wall 9 is fixed at three points along the upright 7 and is made of plastic material.
    [0024] In particular, the wall 9 has a shape that defines a concavity facing the upright 7 and a convexity towards the outside.
    [0025] Brief description of the drawings
    [0026] For a better understanding of the present invention, a preferred embodiment is described below, purely by way of non-limiting example and with reference to the attached drawings, in which:
    [0027] • Figure 1 is a perspective view illustrating a vehicle comprising an aerodynamic drag reduction system according to the invention;
    [0028] • figure 2 is a perspective view of part of the vehicle comprising the aerodynamic drag reduction system according to the invention; Y
    [0029] • figure 3 is a schematic sectional view in a transverse plane of the vehicle of figure 1.
    [0030] Detailed description of the invention
    [0031] Figure 1 illustrates a heavy vehicle 1, such as a truck, comprising a cabin 2 provided with a frame, not illustrated, defining the support for the bodywork defining a front wall 3, a side wall 4, a door 5 , a windshield and other elements already known per se and variable according to the type and shape of the vehicle.
    [0032] As is also known, between the windshield 6 and the side wall 4 (or the door 5) there is a pillar 7, located frontally and laterally with respect to a longitudinal axis of the vehicle.
    [0033] The upright 7 has, as can be seen in figure 3, a shape configured to allow the passage from the side wall 4 to the windshield and therefore can be given a shape having a substantially C, V or cross section. in L according to the angle of incidence between the side wall 4 and the windshield 6. Whatever its cross section, the upright 7 can have an outer connection 7a configured to connect the pitch of inclination between the two mentioned elements.
    [0034] According to the invention, the vehicle 1 comprises an aerodynamic drag reduction system 8 configured to be coupled to the pillar 7 and defining a forced passage for air along the pillar 7.
    [0035] In more detail, the system 8 is configured to prevent the formation of vortices by channeling the air impacting the windshield 6 along the side wall 4.
    [0036] Advantageously, this aerodynamic drag reduction system 8 comprises at the hands a wall 9 that can be fixed to the upright 7 as described below. Advantageously the wall 9 has a shape, when fixed to the upright 7, that does not protrude, along the longitudinal axis of the vehicle, with respect to a plane n of the windshield 6 and that defines a passage 10 between the upright 7 and the wall 9 surrounding the upright itself 7.
    [0037] Preferably, the passage 10 has a constant cross section between the wall 9 and the outer surface of the post 7, as can be seen in Figure 3.
    [0038] Even more advantageously, the wall 9 extends only around the upright 7 and does not extend along the wall 4. In particular, the wall 9 is curved and defines a concavity towards the upright 7 and a convexity towards the outside. .
    [0039] Wall 9 can be mounted on upright 7 through mechanical coupling means such as threaded elements or shaped couplings or also the aerodynamic drag reduction system 8 can comprise more walls glued or mechanically fixed on the upright 7 and holding the wall 9.
    [0040] In particular, in the described embodiment, the wall 9 is coupled at three points along the upright 7, that is to say at a pair of mounting points 12a, 12b respectively an upper mounting point 12a and a mounting point 12b lower located both near the upper and lower ends of the wall 9 and a third mounting point 12c located in an intermediate position 12c between the upper and lower mounting points 12a, 12b.
    [0041] As mentioned above, the mounting points 12a, 12b, 12c can correspond to the point of a form coupling made between a bolt placed in the wall 9 and a space placed in the upright 7, or vice versa, or by means of threaded parts. from wall 9 to stud 7.
    [0042] In both cases, to maintain a correct separation between the upright 7 and the wall 9 to define the passage 10, the system 8 comprises spacers 13 for each mounting point, for example made entirely with the wall 9. In the embodiment described, the spacers 13 comprise projections that define, for example, a space for threaded fastening pieces, but obviously they can be made as parts of walls connected to the wall 9.
    [0043] In particular, the spacers 13 define a width of the passage 10 that can vary between 10 and 70 mm. Preferably, the spacers 13 are profiled to minimize their friction with the flow of air that will tend to channel within the passage 10.
    [0044] System 8 can advantageously be made of a single piece and of plastic material. Even more advantageously it is clear that the shape of the wall 9 will depend on the size and shape of the upright 7.
    [0045] The operation of the embodiment of the drag reduction system 8 just described is as follows.
    [0046] With reference to Figure 3, the air flow that hits the windshield 6 tends to channel inside the passage 10 and is then conducted to carry out the specific path defined by the latter until it comes out parallel to the side wall 4. From this Thus, the resistances due to the spiral movement decrease appreciably and consequently the efficiency of vehicle 1 increases.
    [0047] From all that has been exposed so far, the advantages of a vehicle are evident comprising an aerodynamic drag reduction system 8 according to the invention.
    [0048] As the air is guided around the pillar 7, the aerodynamic resistance caused by the turbulent movement of the air that passes around it is reduced by 5% with a reduction in turn of 1.67% in fuel consumption and consequently of emission of carbon dioxide.
    [0049] The proposed embodiment of the aerodynamic drag reduction system 8 also has the advantage of being able to be carried out in an economical way, adaptable to any type of vehicle 1 already in existence and can be easily fixed to the pillar 7.
    [0050] The fixing by means of spacers 13, for example three such as those we have described, prevents the disengagement of the wall 9 from the upright 7 and interferes as little as possible with the air flow F, keeping the reduction of turbulence described above high.
    [0051] Lastly, it is evident that modifications and variants can be made to the vehicle comprising an aerodynamic resistance reduction system 8 made according to the present invention, which, however, are not outside the scope of protection defined by the claims.
    [0052] For example, as we said, the shape of wall 9 can vary depending on the type of upright 7.
    权利要求:
    Claims (7)
    [1]
    1. - Heavy vehicle (1) comprising a cabin (2) equipped with a front upright (7) configured to define laterally part of the support for a windshield (6) of said vehicle and at least part of a side wall (4 ) of said cabin (2), said vehicle (1) comprises an aerodynamic resistance reduction system (8) that can be fixed on said front pillar 7 (and) configured to conduct an air flow that impacts said windshield (6 ) around said upright (7) and along said side wall (4),
    wherein said aerodynamic resistance reduction system (8) comprises at least one wall (9) configured to be fixed at a predetermined distance to said upright (7), said wall (9) with said upright (7) defining a passage (10) for the air that hits said windshield (6),
    wherein said wall (9) is fixed on said upright (7) by interposing a plurality of spacers (13) housed in said passage (10), characterized in that said spacers (13) are profiled to minimize their friction with the air flow and are spaced from each other by a distance between 10 mm and 70 mm.
    [2]
    2. - Vehicle according to claim 1, wherein said wall (9) does not protrude with respect to a plane (n) of said windshield (6).
    [3]
    3. - Vehicle according to claims 1 or 2, wherein said wall (9) is curved.
    [4]
    4. - Vehicle according to one of claims 1 to 3, wherein said passage (10) has a constant section between its inlet facing said windshield (6) and an outlet facing said wall (4).
    [5]
    5. - Vehicle according to one of claims 1 to 4, wherein said wall (9) is fixed at three points along said upright (7).
    [6]
    6. - Vehicle according to one of claims 1 to 5, wherein said wall (9) is made of plastic material.
    [7]
    7. Vehicle according to one of claims 1 to 6, in which said wall (9) has a shape that defines a concavity oriented towards said upright (7) and a convexity towards the outside.
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    同族专利:
    公开号 | 公开日
    DE102020133112A1|2021-06-17|
    FR3104535A1|2021-06-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2012135564A2|2011-03-31|2012-10-04|Volvo Group North America, Llc|Air deflector for a vehicle a-pillar and side view mirror|
    US20160052566A1|2013-04-05|2016-02-25|Andy BACON|Improvements in the fuel efficiency of road vehicles|
    GB2546894A|2017-01-19|2017-08-02|Daimler Ag|Air guiding device for a cab of a commercial vehicle|
    法律状态:
    2021-06-16| BA2A| Patent application published|Ref document number: 2834150 Country of ref document: ES Kind code of ref document: A1 Effective date: 20210616 |
    优先权:
    申请号 | 申请日 | 专利标题
    IT201900024096|2019-12-16|
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