公开(公告)号：US06349788B1

公开(公告)日：2002-02-26

申请号：US09609477

申请日：2000-07-05

申请人： Chaojiu Wang ,  Akihiko Serizawa

发明人： Chaojiu Wang ,  Akihiko Serizawa

IPC分类号： F15B910

CPC分类号： B62D5/083 ,  Y10T137/86654

摘要： In a control valve of a power steering apparatus, mutually adjacent longitudinal grooves are formed at an inner surface of a sleeve, and each upper end of longitudinal grooves is arranged in a stagger layout, and each lower end thereof is arranged in a stagger layout.

摘要翻译： 在动力转向装置的控制阀中，相互相邻的纵向槽形成在套筒的内表面，并且纵向槽的每个上端以错开的布局布置，并且其每个下端布置成错开的布局。

公开(公告)号：US06503068B2

公开(公告)日：2003-01-07

申请号：US09999559

申请日：2001-10-19

申请人： Eiichi Kojima ,  Chaojiu Wang ,  Kiyoshi Ando

发明人： Eiichi Kojima ,  Chaojiu Wang ,  Kiyoshi Ando

IPC分类号： F04C1504

CPC分类号： F04C14/226

摘要： In a variable capacity type pump, in the inner diameter of a cam ring, an inner diameter of a portion forming a middle section between a suction section and a discharge section in a pump chamber is constituted by a negative slope curve in which an end portion of a suction port is set to be a start point, and a complete round curve and a negative slope curve are connected by a high-order curve.

公开(公告)号：US06520278B2

公开(公告)日：2003-02-18

申请号：US09508554

申请日：2000-03-10

申请人： Chaojiu Wang

发明人： Chaojiu Wang

IPC分类号： B62D506

CPC分类号： B62D6/02 ,  B62D5/06 ,  B62D5/062

摘要： A hydraulic power steering apparatus 1 which is arranged so that a damper valve 10 is disposed in hydraulic oil circuits 8 and 9 for connecting an oil passage selector valve 11 in a gear box with right and left oil chambers of a power cylinder 6. The damper valve 10 comprises a spool valve. And a control oil chamber 21 of the spool valve 10 is connected with a hydraulic oil feed passage 18 for connecting a hydraulic pump 13 which is driven by an internal combustion engine so as to discharge hydraulic oil, with the oil passage selector valve 11. Its back pressure chamber 17 is connected with a hydraulic oil circulating passage 19 for connecting the oil passage selector valve 11 with a reservoir tank 12. Orifices 27 and 28 are provided in connecting oil passages 22 and 20, such that when discharge oil pressure of the hydraulic pump 13 rises, opening of the spool valve 10 increase.

摘要翻译： 一种液压动力转向装置1，其设置成使阻尼阀10设置在用于将齿轮箱中的油路切换阀11与动力缸6的左右油室连接的液压油回路8和9中。阻尼器 阀10包括滑阀。 滑阀10的控制油室21与用于连接由内燃机驱动的液压泵13排出液压油的液压油供给通路18与油路切换阀11连接。它 背压室17与用于将油路切换阀11与油箱12连接的液压油循环通路19连接。在连接油路22,20中设置有孔27,28，使得当油压 泵13上升，滑阀10的开度增加。

公开(公告)号：US6148853A

公开(公告)日：2000-11-21

申请号：US389683

申请日：1999-09-02

申请人： Chaojiu Wang

发明人： Chaojiu Wang

IPC分类号： B62D5/08 ,  B62D5/06 ,  F16F1/16 ,  F16F9/16 ,  F16F9/348 ,  F16K47/04 ,  F16K17/18

CPC分类号： F16F9/348 ,  B62D5/062 ,  F15B21/008 ,  F16F9/16 ,  Y10T137/7777 ,  Y10T137/7779

摘要： A damper valve for a hydraulic power steering device is disposed on a hydraulic oil circuit for connecting an oil passage changing-over valve in a gear box and left and right oil chambers of a power cylinder, and is provided with a partition plate member for partitioning the interior of a valve casing into two valve chambers. The partition plate member is formed at equal intervals along a peripheral direction with a plurality of through holes. A first valve spring plate for opening/closing every other one of the plurality of through holes is fixed to one wall face of the partition plate member facing a first valve chamber of the two valve chambers positioned on the oil passage changing-over valve side, while a second valve spring plate for opening/closing the other every other one of the plurality of through holes is fixed to the other wall face of the partition plate member facing a second valve chamber of the two valve chambers positioned on the power cylinder side. The outer diameter of a first flat washer 38 for pressing the first valve spring plate is made larger than that of a second flat washer which holds the second spring plate, and the spring force of the first valve spring plate is made stronger than that of the second spring plate.

摘要翻译： 用于液压动力转向装置的阻尼阀设置在用于连接齿轮箱中的油路切换阀和动力缸的左右油室的液压油回路上，并且设置有用于分隔的隔板构件 阀体内部分成两个阀室。 分隔板构件沿着周向等间隔地形成有多个通孔。 用于打开/关闭多个通孔中的每一个的第一阀弹簧板被固定到分隔板构件的面对位于油路转换阀侧的两个阀室的第一阀室的一个壁面上， 而用于打开/关闭多个通孔中的另一个的第二阀弹簧板固定到面对位于动力缸侧的两个阀室的第二阀室的隔板构件的另一壁面。 用于按压第一阀弹簧板的第一平垫圈38的外径被制成大于保持第二弹簧板的第二平垫圈的外径，并且使第一阀弹簧板的弹簧力比 第二弹簧板。