公开(公告)号：US5207975A

公开(公告)日：1993-05-04

申请号：US798091

申请日：1991-11-27

申请人： Youichirou Murakami ,  Zen-ichi Yoshida ,  Otomasa Mukouhara ,  Chikara Kurimura ,  Kenji Umeda

发明人： Youichirou Murakami ,  Zen-ichi Yoshida ,  Otomasa Mukouhara ,  Chikara Kurimura ,  Kenji Umeda

IPC分类号： G21C7/16

CPC分类号： G21C7/16 ,  G21Y2002/101 ,  G21Y2004/30 ,  G21Y2004/302 ,  Y02E30/39

摘要： According to the present invention, there is provided a hydraulic control rod driving system in which radial clearance is formed between a piston portion and a cylinder, one or two or more step portions each composed of a cylindrical upper part having a large diameter and a cylindrical lower part having a small diameter arranged adjacent to the lower side of the upper part are provided on the piston portion along an axial direction thereof, circumferential grooves for partitioning off respective step portions are provided, and a ratio of the length of each step portion to the maximum outside diameter of the piston portion is set at 0.5 to 1.0.

摘要翻译： 根据本发明，提供了一种液压控制杆驱动系统，其中在活塞部分和气缸之间形成径向间隙，一个或两个或更多个台阶部分，每个台阶部分由具有大直径的圆柱形上部和圆柱形 沿着活塞部的轴向设置具有邻近上部下侧布置的小直径的下部，设置用于分隔各台阶部的周向槽，并且将各台阶部的长度与 活塞部的最大外径为0.5〜1.0。