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    • 9. 发明授权
    • Damper device for hydraulic control valve
    • 液压控制阀减震装置
    • US07066206B2
    • 2006-06-27
    • US10963772
    • 2004-10-14
    • Tohru InoShigeto RyuenHidetoshi WatanabeSatoshi Noda
    • Tohru InoShigeto RyuenHidetoshi WatanabeSatoshi Noda
    • F15B13/44
    • F15B13/0407F15B13/0402Y10T137/86622
    • A damper device for a hydraulic control valve includes: a valve body; a damper oil chamber to which one end surface of a spool is faced; an oil reservoir chamber which is adjacent to the damper oil chamber with a partition wall therebetween; and an orifice provided in the partition wall to allow an upper portion of the damper oil chamber to communicate with the oil reservoir chamber. The damper oil chamber and the oil reservoir chamber are disposed in the valve body. The oil reservoir chamber is constructed by closing an opening of a recessed portion formed on an undersurface of the valve body with a top surface of the support member for supporting the valve body. In order to work the orifice in the partition wall by drilling from the opening of the recessed portion, an axis of the orifice is disposed to pass through the opening of the recessed portion. Thus, it is possible to eliminate need for post-treatment after working the orifice, thereby reducing the cost.
    • 一种用于液压控制阀的阻尼器装置,包括:阀体; 阀芯的一个端面面对的阻尼油室; 储油室,其与阻尼器油室相邻,其间具有隔壁; 以及设置在分隔壁中以允许阻尼器油室的上部与储油室连通的孔口。 阻尼器油室和储油室设置在阀体中。 储油室通过用支撑阀体的支撑构件的上表面封闭形成在阀体的下表面上的凹部的开口而构成。 为了通过从凹部的开口钻出来在分隔壁中加工孔,孔的轴线设置成穿过凹部的开口。 因此,可以在加工孔口之后消除对后处理的需要,从而降低成本。
    • 10. 发明申请
    • Damper device for hydraulic control valve
    • 液压控制阀减震装置
    • US20050133099A1
    • 2005-06-23
    • US10963772
    • 2004-10-14
    • Tohru InoShigeto RyuenHidetoshi WatanabeSatoshi Noda
    • Tohru InoShigeto RyuenHidetoshi WatanabeSatoshi Noda
    • F16K31/06F15B13/04F16K27/04F15B13/044
    • F15B13/0407F15B13/0402Y10T137/86622
    • A damper device for a hydraulic control valve includes: a valve body; a damper oil chamber to which one end surface of a spool is faced; an oil reservoir chamber which is adjacent to the damper oil chamber with a partition wall therebetween; and an orifice provided in the partition wall to allow an upper portion of the damper oil chamber to communicate with the oil reservoir chamber. The damper oil chamber and the oil reservoir chamber are disposed in the valve body. The oil reservoir chamber is constructed by closing an opening of a recessed portion formed on an undersurface of the valve body with a top surface of the support member for supporting the valve body. In order to work the orifice in the partition wall by drilling from the opening of the recessed portion, an axis of the orifice is disposed to pass through the opening of the recessed portion. Thus, it is possible to eliminate need for post-treatment after working the orifice, thereby reducing the cost.
    • 一种用于液压控制阀的阻尼器装置,包括:阀体; 阀芯的一个端面面对的阻尼油室; 储油室,其与阻尼器油室相邻,其间具有隔壁; 以及设置在分隔壁中以允许阻尼器油室的上部与储油室连通的孔口。 阻尼器油室和储油室设置在阀体中。 储油室通过用支撑阀体的支撑构件的上表面封闭形成在阀体的下表面上的凹部的开口而构成。 为了通过从凹部的开口钻出来在分隔壁中加工孔,孔的轴线设置成穿过凹部的开口。 因此,可以在加工孔口之后消除对后处理的需要,从而降低成本。