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1. 发明授权

US5566799A Low aerodynamic noise type current collection equipment 失效
标题翻译：低气动噪音型电流采集设备
公开(公告)号：US5566799A
公开(公告)日：1996-10-22
申请号：US375830
申请日：1995-01-20
申请人： Hideto Hidaka , Kengo Iwamoyto , Yasuhiro Noguchi , Motohiro Miyamura , Seiichi Yazima , Inao Sakai
发明人： Hideto Hidaka , Kengo Iwamoyto , Yasuhiro Noguchi , Motohiro Miyamura , Seiichi Yazima , Inao Sakai
IPC分类号： B60L5/20 , B61D49/00 , G10K11/16 , B60L5/08
CPC分类号： B60L5/20 , B60L2200/26 , B60L2270/142
摘要： Low aerodynamic noise type current collection equipment is provided for reducing variations in aerodynamic force applied to a current collector during train operation. A central region (2a) of a current collector (1) having a collector head (2) with a top surface in which a contact strip (3) is embedded is rectangular in cross-section, and each side region is shaped convex in cross-section in the front and rear directions, with e.g. an elliptical shape. The rectangular shape has characteristics such that the magnitude of the aerodynamic lift force would be kept substantially constant even if the inclination angle against the aerial flow would be changed. Accordingly, the cross-sectional shape of the central region (2a) of the current collector (1), which is liable to receive the turbulent aerial flow from the support portion (4) in the current collector (1), makes it possible to suppress the variation in aerodynamic lift force generated in the current collector even if the angle of the aerial flow that would collide against the current collector (1) would be unstable. The cross-sectional shape of each side region (2b) being made convex in the front and rear directions reduces the aerodynamic noise.
摘要翻译：提供低空气动力噪声型集流设备，用于减少在列车运行期间施加到集电器的空气动力的变化。具有收集头（2）的集电体（1）的中心区域（2a）具有嵌入有接触条（3）的顶表面的横截面矩形，并且每个侧面区域呈十字形的凸形在前后方向上，例如椭圆形矩形形状具有这样的特征，使得即使改变对空中流动的倾斜角度，空气动力升力的大小也将保持基本恒定。因此，容易从集电体（1）的支撑部（4）接受湍流空气流的集电体（1）的中央区域（2a）的截面形状使得可以即使与集电体（1）碰撞的空气流的角度不稳定，也能够抑制集电体内产生的气动升力的变化。每个侧部区域（2b）在前后方向上的横截面形状减小了空气动力学噪声。

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