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    • 59. 发明申请
    • Oil passage switching valve having oil filter
    • 油路切换阀具有滤油器
    • US20050011703A1
    • 2005-01-20
    • US10868831
    • 2004-06-17
    • Takashi Yamaguchi
    • Takashi Yamaguchi
    • F15B21/04F01L1/34F01L1/46F16K11/07F16K31/06F01M1/00
    • F01L1/344F01L2001/3444F01L2101/00F16K11/07F16K27/041
    • Oil ports formed on a cylindrical sleeve of an oil passage switching valve are covered with respective filters. The filter is formed in a ring shape by rounding a resilient metal strip having plural filter holes formed thereon. The filter clings around the outer periphery of the cylindrical sleeve by its own resiliency. A contacting portion is formed on one of overlapping ends of the filter ring or on both overlapping ends so that the contacting portion engages with the other overlapping end to prevent the filter ring from being enlarged by an oil pressure applied to the filter from its inside. Foreign particles in the oil are surely prevented from entering into the sleeve by the filter covering the oil port in close contact therewith.
    • 在油路切换阀的圆筒套上形成的油口被各自的过滤器覆盖。 过滤器通过对形成有多个过滤孔的弹性金属带进行四舍五入而形成环形。 过滤器通过其自身的弹性力围绕圆柱形套筒的外周边附着。 接触部分形成在过滤环的一个重叠的端部上或两个重叠的端部上,使得接触部分与另一个重叠的端部接合,以防止过滤器环从其内部施加到过滤器上的油压而增大。 可靠地防止油中的异物颗粒通过覆盖油口的过滤器与其紧密接触而进入套筒。