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1. 发明申请

US20070095599A1 Hydraulic power steering apparatus 有权
标题翻译：液压动力转向装置
公开(公告)号：US20070095599A1
公开(公告)日：2007-05-03
申请号：US11451944
申请日：2006-06-12
申请人： Satoshi Aiko , Hiroki Iwano
发明人： Satoshi Aiko , Hiroki Iwano
IPC分类号： B62D5/08
CPC分类号： B62D5/062 , B62D5/083
摘要： A hydraulic power steering apparatus is provided with a check valve regulating a back flow of a working fluid from a power cylinder mechanism to a hydraulic pump side. A valve element slidably accommodated within a valve body of the check valve has three guide portions protruding to an outer side in a diametrical direction. A valve internal oil path in which the working fluid circulates by a pair of guide portions adjacent in a peripheral direction is formed in the valve element. The guide portion is constituted by a slidable contact portion having a slidable contact surface surface contacted with an inner peripheral surface of the valve body, and a coupling portion coupling a base body portion and the sidable contact portion. A width (W1) in a peripheral direction of the sidable contact surface is larger than a width in the peripheral direction of the coupling portion.
摘要翻译：液压动力转向装置设有一个止回阀，该止回阀调节工作流体从动力缸机构向液压泵侧的回流。可滑动地容纳在止回阀的阀体内的阀元件具有在直径方向上向外侧突出的三个引导部。在阀元件中形成有通过在周向相邻的一对引导部循环工作流体的阀内部油路。引导部分由具有与阀体的内周面接触的可滑动接触表面的可滑动接触部分和连接基体部分和可弯曲接触部分的联接部分构成。所述侧面接触面的周向的宽度（W1）大于所述连结部的圆周方向的宽度。

2. 发明授权

US07428945B2 Hydraulic power steering apparatus 有权
标题翻译：液压动力转向装置
公开(公告)号：US07428945B2
公开(公告)日：2008-09-30
申请号：US11451944
申请日：2006-06-12
申请人： Satoshi Aiko , Hiroki Iwano
发明人： Satoshi Aiko , Hiroki Iwano
IPC分类号： B62D5/08
CPC分类号： B62D5/062 , B62D5/083
摘要： A hydraulic power steering apparatus is provided with a check valve regulating a back flow of a working fluid from a power cylinder mechanism to a hydraulic pump side. A valve element slidably accommodated within a valve body of the check valve has three guide portions protruding to an outer side in a diametrical direction. A valve internal oil path in which the working fluid circulates by a pair of guide portions adjacent in a peripheral direction is formed in the valve element. The guide portion is constituted by a slidable contact portion having a sidable contact surface surface contacted with an inner peripheral surface of the valve body, and a coupling portion coupling a base body portion and the sidable contact portion. A width (W1) in a peripheral direction of the sidable contact surface is larger than a width in the peripheral direction of the coupling portion.
摘要翻译：液压动力转向装置设有一个止回阀，该止回阀调节工作流体从动力缸机构向液压泵侧的回流。可滑动地容纳在止回阀的阀体内的阀元件具有在直径方向上向外侧突出的三个引导部。在阀元件中形成有通过在周向相邻的一对引导部循环工作流体的阀内部油路。引导部由具有与阀体的内周面接触的可接触的接触表面的滑动接触部分和连接基体部分和可弯曲的接触部分的联接部分构成。所述侧面接触面的周向的宽度（W1）大于所述连结部的圆周方向的宽度。

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