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    • 3. 发明授权
    • Air drag reduction unit for vehicles
    • 用于车辆的空气减阻单元
    • US6092861A
    • 2000-07-25
    • US360447
    • 1999-07-26
    • William Whelan
    • William Whelan
    • B62D35/00
    • B62D35/001
    • An air drag reducing apparatus is mounted on the rearward surface of a large vehicle. The apparatus comprises first and second pairs of identical panels having a base edge and first and second side edges extending from the base edge, and mating hinge plates and hinge pin. The base edges of the first pair of panels are adapted for mounting to one of the opposed vertical side edges of the rearward surface of the large vehicle and the base edges of the second pair of panels are adapted for mounting to one of the upper and lower side edges of the rearward surface. The second side edge of each of the first pair of panels is hingedly connected to the first side edge of a respective one the second pair of panels so as to form one of two fold-away portions of the apparatus. Each of the panels is symmetric about a respective axis of symmetry. At least one of the angles formed between the edges of the panels and the sides of the rearward surface of the vehicle is between 18 and 30 degrees. When mounted, the air drag reducing apparatus has the configuration of a horizontally directed pyramid, which may be truncated.
    • 减压装置安装在大型车辆的后表面上。 该装置包括第一和第二对相同的面板,其具有基部边缘以及从基部边缘延伸的第一和第二侧边缘以及配合铰链板和铰链销。 第一对面板的基部边缘适于安装到大型车辆的后表面的相对的垂直侧边中的一个,并且第二对面板的基部边缘适于安装在上部和下部中的一个上 后表面的侧边缘。 第一对面板中的每一个的第二侧边缘铰接地连接到相应的第一对面板的第一侧边缘,以形成设备的两个折叠部分之一。 每个面板关于相应的对称轴对称。 在面板的边缘和车辆的后表面的侧面之间形成的至少一个角度在18和30度之间。 当安装时,减风装置具有可以被截断的水平定向的金字塔的构造。