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5 条记录 (耗时 0.01 秒)

    Steering control valve with contoured control surfaces
    1.
    发明公开
    Steering control valve with contoured control surfaces 失效
    Steuerventil mit gekerbtenSteuerflächenfüreine Lenkung。

    公开(公告)号：EP0585107A1

    公开(公告)日：1994-03-02

    申请号：EP93306706.8

    申请日：1993-08-24

    申请人： TRW INC.

    发明人： Harpole, George M. ,  Behrens, Herman W. ,  Wolff, Michael F. ,  Lin, Jane Ming-Chin

    IPC分类号： B62D5/083

    CPC分类号： B62D5/0837 ,  Y10T137/86638 ,  Y10T137/86662

    摘要： A valve for controlling flow of hydraulic fluid. The valve includes a valve sleeve (82) and a valve core (80). The core (80) is disposed within the sleeve (82). The core (80) and sleeve (82) are relatively rotatable. Each of said core (80) and sleeve (82) has an axially extending land (192,220) and an axially extending groove (110,122).
    The core (80) and sleeve (82) have relative rotational positions such that the lands (192,220) overlap to define a flow gap for flow of hydraulic fluid from the groove (110) in the sleeve (82) to the groove (122) in the core (80). The flow gap has a minimum cross-sectional flow area adjacent to the groove (122) in the core (80). The minimum cross-sectional flow area constantly varies as the core (80) and sleeve (82) relatively rotate. The land (192) on the sleeve (82) has a notch (202) immediately adjacent to, and downstream of the minimum cross-sectional flow area which provides an abrupt increase in cross-sectional flow area for suppressing valve noise due to cavitation.

    摘要翻译： 用于控制液压油流量的阀。 阀包括阀套（82）和阀芯（80）。 芯（80）设置在套筒（82）内。 芯部（80）和套筒（82）可相对旋转。 所述芯部（80）和套管（82）中的每个具有轴向延伸的平台（192,220）和轴向延伸的凹槽（110,122）。 芯部（80）和套筒（82）具有相对的旋转位置，使得焊盘（192,220）重叠以限定用于使液压流体从套筒（82）中的凹槽（110）流到凹槽（122）的流动间隙， 在核心（80）。 流动间隙具有与芯部（80）中的凹槽（122）相邻的最小横截面流动面积。 当芯（80）和套筒（82）相对旋转时，最小横截面流动面积不断变化。 套筒（82）上的平台（192）具有与最小横截面流动区域紧邻并且在最小横截面流动区域下游的切口（202），其提供了横截面流动面积的突然增加，用于抑制由气蚀引起的阀门噪声。

    Steering control valve with contoured control surfaces
    2.
    发明公开
    Steering control valve with contoured control surfaces 失效
    Steuerventil mitabgeschrägterSteuerflächenfüreine Lenkung。

    公开(公告)号：EP0592095A1

    公开(公告)日：1994-04-13

    申请号：EP93306705.0

    申请日：1993-08-24

    申请人： TRW INC.

    发明人： Behrens, Hermann W. ,  Harpole, George M. ,  Lin, Jane Ming-Chin ,  Wolff, Michael F.

    IPC分类号： B62D5/083

    CPC分类号： B62D5/0837 ,  Y10T137/86638 ,  Y10T137/86662

    摘要： A valve for controlling flow of hydraulic fluid. The valve includes a valve sleeve (82) and a valve core (80). The core (80) is disposed within the sleeve (82). The core (80) and sleeve (82) are relatively rotatable. The sleeve (82) has grooves (98,110) connected to a utilization device. The core (80) has grooves (116,122) connected to a fluid supply and reservoir. The core (80) and sleeve (82) have lands (200,212,240,260) which radially overlap during relative rotation of said core (80) and sleeve (82) to restrict fluid flow from a portion of the grooves (98,110) in the sleeve (82) to the grooves (122) in the core (80) connected to the reservoir. The lands (212) on the sleeve (82) have chamfered end faces (220,222) with tapered segments.

    摘要翻译： 用于控制液压油流量的阀。 阀包括阀套（82）和阀芯（80）。 芯（80）设置在套筒（82）内。 芯部（80）和套筒（82）可相对旋转。 套筒（82）具有连接到利用装置的凹槽（98,110）。 芯（80）具有连接到流体供应和储存器的凹槽（116,122）。 芯部（80）和套筒（82）具有在所述芯体（80）和套筒（82）的相对旋转期间径向重叠的平台（200,212,240,260），以限制来自套筒（82）中的凹槽（98,110）的一部分的流体流动 ）连接到与储存器连接的芯部（80）中的凹槽（122）。 套筒（82）上的平台（212）具有锥形段的倒角端面（220,222）。

    Steering control valve with different size flow gaps for noise suppression
    4.
    发明公开
    Steering control valve with different size flow gaps for noise suppression 失效
    Servolenkungsventil mitStrömungsöffnungenvon unterschiedlicherGrössezurGeräuschunterdrückung

    公开(公告)号：EP0728654A1

    公开(公告)日：1996-08-28

    申请号：EP96102381.9

    申请日：1996-02-16

    申请人： TRW INC.

    发明人： Behrens, Hermann W. ,  Harpole, George M. ,  Lin, Jane Ming-Chin ,  Wolff, Michael F. ,  Gilbert, Wendell L.

    IPC分类号： B62D5/083

    CPC分类号： B62D5/0837 ,  Y10T137/86654 ,  Y10T137/86662

    摘要： A valve (10) for controlling flow of hydraulic fluid. The valve (10) has first and second valve members (80, 82) which have a plurality of lands and grooves. The valve members (80, 82) are relatively movable from a neutral position to a displaced position in which surface segments (202, 226, 208, 218) of respective pairs of lands overlap to form flow gaps (232, 234) for restricting flow of fluid between respective pairs of grooves. At least one (234) of the flow gaps is divergent by having a cross-sectional flow area which increases along a direction of fluid flow and at least one (232) of the flow gaps is convergent by having a cross-sectional flow area which decreases along a direction of fluid flow. The flow gaps (232, 234) have minimum cross-sectional flow areas (A, B) defined by the surface segments. The flow gaps (232, 234) are sized such that the minimum cross-sectional flow area (A) of the convergent flow gap (232) is larger than the minimum cross-sectional flow area (B) of the divergent flow gap (234) for suppressing valve noise.

    摘要翻译： 一种用于控制液压流体流动的阀门（10）。 阀（10）具有第一和第二阀构件（80,82），其具有多个平台和凹槽。 阀构件（80,82）可从中性位置相对移动到位移位置，在该位置处，相应对的脊的表面段（202,226,208,218）重叠以形成用于限制流动的流动间隙（232,234） 的各对槽之间的流体。 至少一个（234）的流动间隙通过具有沿流体流动方向增加的横截面流动面积而发散，并且流动间隙的至少一个（232）通过具有横截面流动面积而会聚， 沿流体流动的方向减小。 流动间隙（232,234）具有由表面段限定的最小横截面流动面积（A，B）。 流动间隙（232,234）的尺寸使得会聚流动间隙（232）的最小横截面流动面积（A）大于发散流动间隙（234）的最小横截面积面积（B） ）用于抑制阀门噪音。