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    • 2. 发明专利
    • Hydraulic valve provided with annular filter element fixed by coil spring
    • 液压阀提供带有螺旋固定的环形滤芯元件
    • JP2013060998A
    • 2013-04-04
    • JP2011199012
    • 2011-09-13
    • Husco Automotive Holdings Llcフスコ オートモーティブ ホールディングス エル・エル・シーHUSCO Automotive Holdings LLC
    • STEPHENS KIRT N
    • F16K51/00F01M11/03F16K11/07F16K31/06
    • PROBLEM TO BE SOLVED: To provide a spool type valve having an integrated type filter in a hydraulic valve.SOLUTION: In a valve body 20 provided with a bore 21 in a longitudinal direction therein, an annular recess is formed in the bore in the longitudinal direction, and the annular recess includes an inner peripheral face opened with a fluid port penetrating therethrough. A filter band 82 with a plurality of apertures penetrating therethrough is provided in the annular recess, and abuts on the inner peripheral face. A coil spring 90 includes a plurality of vortex parts isolated from each other, is engaged with the filter band, and is configured to apply a force toward the radius outer direction for holding the filter band in relation to the inner peripheral face of the annular recess in the bore in the longitudinal direction. A valve element 44 such as a spool is slidably contained in the bore in the longitudinal direction in order to control the flow of fluid passing through the fluid port.
    • 要解决的问题:提供一种在液压阀中具有一体式过滤器的阀芯型阀。 解决方案:在沿其长度方向设置有孔21的阀体20中,在孔中沿纵向方向形成有环形凹部,并且环形凹部包括开口的流体端口穿过的内周面 。 在该环形凹部设置有贯穿其的多个孔的过滤带82,并与内周面邻接。 螺旋弹簧90包括彼此隔离的多个涡流部,与过滤带接合,并且构造成向半径外侧施加力,以相对于环状凹部的内周面保持过滤带 在纵向的孔中。 诸如阀芯的阀元件44沿纵向方向可滑动地容纳在孔中,以便控制通过流体端口的流体的流动。 版权所有(C)2013,JPO&INPIT