• 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:
    The invention relates to an aerodynamic wheel (1) of a vehicle. The invention is characterized in that the wheel (1) further comprises blades (6) arranged radially between the central hub (4) and the outer peripheral edge (3) of the rim (2) and intended only to deflect a lateral air flow and channeling it through radial perforations (7) formed between the blades (6) and the radial branches (5) of the wheel (1) during the rotational drive (R) of the wheel (1). The invention finds its application in the field of the automotive industry.
    公开号:FR3045460A1
    申请号:FR1562504
    申请日:2015-12-16
    公开日:2017-06-23
    发明作者:Eric Palpacuer
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:
    专利说明:

    "AERODYNAMIC WHEEL OF A VEHICLE" [0001] The invention relates to an aerodynamic wheel of a vehicle, in particular an automobile.
    It is known from the application for a utility certificate FR 0655465 a wheel comprising eight radial branches extending from the central hub to the peripheral edge of the rim, these branches being formed of profiled blades and oriented so as to orient a flow lateral air towards the inside of the wheel rim to reduce the aerodynamic drag of a vehicle equipped with such wheels.
    However, because of the number of radial branches, radial openings between the branches have too large a surface to allow a correct deflection of the lateral air flow. The result is that cooling of the brakes induced by the air circulation in the wheels is not optimal.
    To overcome this drawback, it is known to add radial branches to the wheel to reduce the surface of the radial openings defined between the radial branches. Such a solution is disclosed in patent application DE 10158408, in which a fifteen-spoke wheel is proposed.
    However, such a solution has the disadvantage of significantly increasing the weight of the wheel, which has a deleterious effect on the energy consumption and performance of the vehicle.
    The present invention aims to overcome the above disadvantages of the prior art.
    To achieve this object, the invention relates to an aerodynamic wheel of a vehicle, including a motor vehicle, comprising a rim, branches arranged radially between the central hub and the outer peripheral edge of the rim and intended to ensure alone the mechanical strength of the wheel, characterized in that the wheel further comprises blades arranged radially between the central hub and the outer peripheral edge of the rim and intended only to deflect a lateral air flow and to channel it through radial perforations formed between the blades and the radial branches of the wheel during the rotational drive of the wheel.
    In another feature, the branches and the radial blades are regularly spaced apart from each other relative to the central hub, and at least one radial blade is disposed between two consecutive radial branches. According to another feature, the wheel comprises five radial branches and ten radial blades, and two radial blades are arranged between two consecutive radial branches.
    In another feature, the cross section of each radial blade has a length about ten times greater than its width.
    According to another feature, the radial blades have a profile of the type "aircraft wing", each having a lower surface and an upper surface, and in that they are inclined at an angle of between 3 ° and 13 ° relative to a plane perpendicular to the axis of rotation of the wheel.
    According to another feature, the underside of each radial blade is oriented towards the inside of the rim so that the lateral air flow can be deflected towards the inside of the wheel through the radial perforations of the wheel. wheel.
    According to another feature, the underside of each radial blade is oriented towards the outside of the rim so that the lateral air flow can be diverted to the outside of the wheel through the radial perforations of the wheel.
    According to another feature, the radial blades are bent to optimize the speed field related to the centrifugal force exerted by the wheel in rotational motion.
    The invention also relates to a vehicle, in particular an automobile, each of whose wheels is an aerodynamic wheel as described above.
    The invention will be better understood, and other objects, features, details and advantages thereof will appear more clearly in the explanatory description which follows with reference to the accompanying drawings given solely by way of example illustrating a embodiment of the invention and in which: - Figure 1 shows a perspective view of an aerodynamic wheel according to the invention; - Figure 2 shows a front view of the aerodynamic wheel along the arrow II of Figure 1; FIG. 3 represents an enlarged partial view, in cross-section and in front of it, showing mainly the cross-section of a radial blade of the wheel of FIG. 1, the intrados of the radial blade being oriented towards the inside of the rim; ; - Figure 4 shows a view similar to that of Figure 3, the lower surface of the radial blade being oriented towards the outside of the rim.
    Referring to Figures 1 to 4, the reference numeral 1 denotes an aerodynamic wheel which may comprise a tire to form a wheel / tire assembly of a vehicle, particularly automobile. As will be seen below, the wheel 1 is shaped to ensure both a good cooling of the corresponding wheel brake of the vehicle and a low aerodynamic drag without significantly increasing the weight of the wheel 1.
    The aerodynamic wheel 1 comprises a peripheral portion 2 of generally cylindrical shape which is the wheel rim, a central hub 4, and branches 5 arranged radially between the central hub 4 and the outer peripheral edge 3 of the rim 2, also called rim hook, so that the angle between two consecutive radial branches 5 is constant over the entire periphery of the wheel 1. Preferably, the wheel 1 comprises five radial branches 5 regularly distributed relative to the central hub 4.
    These radial branches 5, substantially rectilinear, are intended to ensure alone the mechanical strength of the wheel 1. Thus, all the mechanical stresses applied to the wheel 1 regardless of their directions, such as radial stresses related the weight of the vehicle or the axial stresses applied to the wheel 1 in particular during the movement of the vehicle in a turn, are supported only by the radial branches 5 of the wheel 1. Naturally, these radial branches 5 are sufficiently strong to ensure the integrity mechanical wheel 1 and prevent any deformation of the wheel 1 of the vehicle.
    According to the invention, the aerodynamic rim comprises blades 6 profiled in "air wing" arranged radially between the central hub 4 and the outer peripheral edge 3 of the rim 2. Each radial blade 6 therefore comprises a lower surface 8 and an extrados 9. Preferably, the wheel 1 comprises ten radial blades 6. The number of radial blades 6 between two radial branches 5 consecutive is constant over the entire periphery of the rim 2. Thus, in the embodiment shown on the figures, there are two radial blades 6 arranged between two consecutive radial branches 5, but there may be only one or three depending on the width of each radial blade 6.
    In addition, the branches and the radial blades 5, 6 are regularly spaced from each other relative to the central hub 4.
    The radial blades 6 are only intended to deflect the lateral air flow F, so as to channel this flow F through a plurality of radial openings 7 formed between the blades 6 and the radial branches 5 of the wheel 1, during the rotational drive R of the wheel 1.
    Preferably, the profile "aircraft wing" radial blades 6 is a profile type "CLARK Y", relatively simple shape, very effective small scale. The profile "CLARK Y" is a particular aerodynamic profile, very widely used in aeronautical construction and model making. In addition, the radial vanes 6 are identical and can be bent in their longitudinal direction, in the same direction which is the opposite direction of the clockwise with reference to FIG. 2, to optimize the force-related velocity field. centrifugal force exerted by the wheel in rotational movement.
    In addition, the radial blades 6 are inclined at an angle of between 3 ° and 13 ° of angle relative to a plane orthogonal to the axis of rotation XX 'of the rim 2. Depending on the type of airflow deflection F desired by the manufacturer, the intrados 8 of the radial blades 6 may be oriented either outwardly of the rim 2, or towards the inside of the rim 2.
    Referring to Figure 3, if the intrados 8 of each radial blade 6 of the wheel 1 is oriented towards the inside of the rim 2, then the lateral air flow F is deflected inwardly of the wheel 1 through the corresponding radial opening 7. The aerodynamic wheel 1 is called suction.
    Conversely, with reference to FIG. 4, if the lower surface 8 of each radial blade 6 of the wheel 1 is oriented towards the outside of the rim 2, then the lateral air flow F is deflected. to the outside of the wheel 1 through the corresponding radial opening 7. The aerodynamic wheel 1 is then called blower.
    As specified above, the radial blades 6 have the sole function of deflecting the lateral air flow F and channeling through the radial openings 7 of the wheel 1. It is therefore not necessary to size the radial blades 6 so that they are intended to withstand the mechanical stresses that can be applied to the wheel 1.
    Indeed, it is well known that the effectiveness of the radial blades 6 having a profile "aircraft wing" to deflect the lateral air flow F and to channel through the radial openings 7 of the wheel 1 is correlated with a small cross-sectional area of each radial blade 6. For this reason, the cross section of each radial blade 6 has a length about ten times greater than its section width corresponding to its thickness. It should be noted in this regard that Figures 3 and 4 are not to scale.
    By way of non-limiting example, each radial blade 6 of the wheel 1 according to the invention has a length and a width respectively of 40 mm and 4 mm. Thus, the wheel 1 of the invention makes it possible to use very thin radial blades 6.
    Preferably, the aerodynamic wheel 1 is made in one piece, steel or aluminum. Alternatively, the hub 4, the radial branches 5 and the rim 2 are made in one piece and the radial blades 6 are then secured by welding to the outer peripheral edge 3 and the central hub 4, possibly on one side of a radial branch 5 of the wheel 1.
    The aerodynamic wheel 1 according to the invention, by the presence of radial blades 6 between the successive radial branches 5, reduces the surfaces of the radial openings 7 and, therefore, to increase the flow rate of air flow F crossing the wheel 1, without significant increase in the weight of the wheel 1. This results in better cooling of the vehicle brakes without the performance and energy consumption of the vehicle suffers.
    权利要求:
    Claims (9)
    [1" id="c-fr-0001]
    Aerodynamic wheel (1) of a vehicle, in particular an automobile, comprising a rim (2), branches (5) arranged radially between the central hub (4) and the outer peripheral edge (3) of the rim (2) and intended to ensure alone the mechanical strength of the wheel (1), characterized in that the wheel (1) further comprises blades (6) arranged radially between the central hub (4) and the outer peripheral edge (3). ) of the rim (2) and intended only to deflect a lateral air flow (F) and to channel it through radial perforations (7) formed between the blades (6) and the radial branches (5) of the wheel (1) during the rotational drive (R) of the wheel (1).
    [2" id="c-fr-0002]
    Aerodynamic wheel according to claim 1, characterized in that the branches and the radial blades (5, 6) are regularly spaced from one another relative to the central hub (4), and at least one radial blade (6) is arranged between two radial branches (5) consecutive.
    [3" id="c-fr-0003]
    3. Aerodynamic wheel (1) according to claim 2, characterized in that it comprises five radial branches (5) and ten radial blades (6), and in that two of the radial blades (6) are arranged between two radial branches (5) consecutive.
    [4" id="c-fr-0004]
    4. aerodynamic wheel (1) according to any one of claims 1 to 3, characterized in that the cross section of each radial blade (6) has a length about ten times greater than its width.
    [5" id="c-fr-0005]
    5. aerodynamic wheel (1) according to any one of claims 1 to 4, characterized in that the radial blades (6) have a profile of the type "aircraft wing", each having a lower surface (8) and a extrados (9), and in that they are inclined at an angle between 3 ° and 13 ° with respect to a plane perpæidicular to the axis of rotation (XX ') of the wheel (1).
    [6" id="c-fr-0006]
    6. aerodynamic wheel (1) according to claim 5, characterized in that the intrados (8) of each radial blade (6) is oriented towards the inside of the rim (2) so that the lateral air flow (F) can be deflected towards the inside of the wheel (1) through the radial apertures (7) of the wheel (1).
    [7" id="c-fr-0007]
    Aerodynamic wheel (1) according to claim 5, characterized in that the lower surface (8) of each radial blade (6) is oriented towards the outside of the rim (2) so that the lateral air flow (F) can be deflected outwardly of the wheel (1) through the radial apertures (7) of the wheel (1).
    [8" id="c-fr-0008]
    8. aerodynamic wheel (1) according to any one of claims 1 to 7, characterized in that the radial blades (6) are bent to optimize the speed field related to the centrifugal force exerted by the wheel (1) in motion of rotation.
    [9" id="c-fr-0009]
    9. Vehicle, especially automobile, characterized in that each of its wheels is an aerodynamic wheel (1) according to claims 1 to 8.
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR3045460B1|2019-05-24|
    WO2017103359A1|2017-06-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2441392A|2006-09-02|2008-03-05|Joshua Nicholas George Reid|Wind powered vehicle having variable pitch blades inside wheel rims|
    EP2560826A1|2010-04-17|2013-02-27|Audi AG|Rim for a vehicle wheel|
    EP2605920A1|2010-08-16|2013-06-26|Audi AG|Vehicle wheel|
    US20130264861A1|2012-04-05|2013-10-10|Samsung Electronics Co., Ltd.|Wheel assembly of in-wheel system|IT201800010194A1|2018-11-09|2020-05-09|Ferrari Spa|RIM FOR A VEHICLE|
    FR3078922A1|2018-03-19|2019-09-20|Psa Automobiles Sa|STRUCTURAL WHEEL OF VEHICLE WITH AERODYNAMIC EFFECT AND VEHICLE COMPRISING SUCH A WHEEL|
    CN110682728B|2018-07-06|2021-05-14|广州汽车集团股份有限公司|Automobile hub heat dissipation method and device and automobile|
    FR3092520B1|2019-02-12|2021-05-21|Psa Automobiles Sa|TRIM WITH AN AERODYNAMIC PROFILE ALLOWING GOOD COOLING OF THE BRAKING SYSTEM|
    法律状态:
    2016-11-21| PLFP| Fee payment|Year of fee payment: 2 |
    2017-06-23| PLSC| Publication of the preliminary search report|Effective date: 20170623 |
    2017-11-21| PLFP| Fee payment|Year of fee payment: 3 |
    2018-06-29| CA| Change of address|Effective date: 20180312 |
    2018-06-29| CD| Change of name or company name|Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR Effective date: 20180312 |
    2019-11-20| PLFP| Fee payment|Year of fee payment: 5 |
    2020-11-20| PLFP| Fee payment|Year of fee payment: 6 |
    2021-11-18| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1562504A|FR3045460B1|2015-12-16|2015-12-16|AERODYNAMIC WHEEL OF A VEHICLE|
    FR1562504|2015-12-16|FR1562504A| FR3045460B1|2015-12-16|2015-12-16|AERODYNAMIC WHEEL OF A VEHICLE|
    PCT/FR2016/052940| WO2017103359A1|2015-12-16|2016-11-14|Aerodynamic wheel of a vehicle|
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