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    • 91. 发明申请
    • Dynamic sand drift barrier
    • 动态砂漂屏障
    • US20050013931A1
    • 2005-01-20
    • US10622326
    • 2003-07-17
    • Abdulmalik Alghamdi
    • Abdulmalik Alghamdi
    • E01F7/02B05D1/12
    • E01F7/02
    • A dynamic sand drift barrier stops and accumulates sand, snow or other heavier-than-air particles suspended in moving air currents, to perform as a fence and adjust its position to maintain the operative portions above the top of the accumulated particles using energy derived from the particle and wind movement. The dynamic drift barrier is made of a horizontal Savonius windmill presenting the fence frontal area perpendicular to the prevailing wind direction. Blown particles will rotate the Savonius windmill transferring the longitudinal motion into rotational motion. Two sets of pulleys and related mechanically operative power transmission serves to translate the rotational energy into axial force-displacement energy using four slider crank arm mechanisms. Transported sand will be deposited by the Savonius windmill, and the blown sand energy will drive the four legs of the barrier vertically so that each foot will readjust its height to retain the position of the drift barrier atop the sand dune.
    • 动态的沙滩障碍物阻止并积聚悬浮在移动气流中的沙子,雪或其他比空气中的重要颗粒,作为围栏并调整其位置,以将活动部分保持在积聚的颗粒的顶部之上, 颗粒和风的运动。 动态漂移屏障由水平的Savonius风车制成,呈现垂直于当前风向的栅栏正面。 吹出的颗粒将旋转Savonius风车将纵向运动转移到旋转运动中。 两组滑轮和相关的机械操作动力传动用于使用四个滑块曲柄臂机构将旋转能量转化为轴向力 - 位移能量。 运输的砂将由Savonius风车堆放,吹沙能量将垂直驱动屏障的四条腿,以便每只脚将重新调整其高度,以保持沙丘上方的漂移屏障的位置。