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1. 发明授权

US5305858A Rotary shock absorber having vanes with radial flow clearance 失效
标题翻译：具有径向流动间隙的叶片的旋转减震器
公开(公告)号：US5305858A
公开(公告)日：1994-04-26
申请号：US918221
申请日：1992-07-21
申请人： Kyosuke Haga , Toshifumi Sakai , Naoyuki Kokubo , Masaharu Ooba , Youzo Yamaguchi , Sadamu Tuge
发明人： Kyosuke Haga , Toshifumi Sakai , Naoyuki Kokubo , Masaharu Ooba , Youzo Yamaguchi , Sadamu Tuge
IPC分类号： F16F9/14 , F16F9/12
CPC分类号： F16F9/145 , B60G2202/135 , B60G2202/42
摘要： A rotary shock absorber suitable for use in a suspension system of a vehicle. The shock absorber is provided with a housing and a rotary shaft supported by the housing for relative rotation thereto. A pressure chamber is formed in the housing and a rotor having a pair of blades is received within the pressure chamber. Further, a pair of partition walls are formed within the pressure chamber to define first and second chambers at both sides of each blade, and the first and second chambers are communicated with each other through throttles. When the rotary shaft is rotated, a high viscous fluid filled within the first and second chambers flows therebetween through the throttles. Due to the flow resistances of the throttles, pressures are generated in the first or second chambers. This pressure generation is used to generate a damping force. The shock absorber is further provided with a mechanism which changes the characteristic of damping force generation depending on the rotational direction of the rotary shaft. In some embodiments, the shock absorber has a stopper function which drastically increases the damping force at the stroke ends.
摘要翻译：适用于车辆悬架系统的旋转减震器。减震器设置有壳体和由壳体支撑的用于相对旋转的旋转轴。压力室形成在壳体中，具有一对叶片的转子被容纳在压力室内。此外，在压力室内形成一对分隔壁，以在每个叶片的两侧限定第一和第二腔室，并且第一和第二腔室通过节流阀相互连通。当旋转轴旋转时，填充在第一和第二腔室内的高粘性流体通过节流阀在其间流动。由于节流阀的流动阻力，在第一或第二腔室中产生压力。该压力产生用于产生阻尼力。减震器还具有根据旋转轴的旋转方向改变阻尼力产生特性的机构。在一些实施例中，减震器具有止动器功能，其大大增加行程末端处的阻尼力。

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