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    • 11. 发明公开
    • 서보밸브
    • 伺服阀
    • KR1020130017320A
    • 2013-02-20
    • KR1020110079684
    • 2011-08-10
    • 주식회사 에네스지한국남부발전 주식회사
    • 송인식진해중김석영김순웅
    • F15B13/043F15B21/04
    • F15B13/02F15B21/041F15B2211/305F15B2211/405
    • PURPOSE: A servo valve is provided to remove the pollutants of the servo valve without stopping a servo valve system by having a dual filter and to monitor the filter with a differential pressure sensor. CONSTITUTION: A servo valve comprises a first filter(111), a second filter(112), a differential pressure sensor(120), a direction changing valve(130), and a shuttle valve(140). Pollutants contained in hydraulic working oil are filtered by the first and second filters. The differential pressure sensor measures the differential pressure between the front side and the back side of the first or the second filter. The direction changing valve selects the first filter or the second filter. The shuttle valve blocks a pipeline of unused filter according to the selection of the direction changing valve.
    • 目的:提供伺服阀,通过使用双过滤器,并通过差压传感器对过滤器进行监控,从而消除伺服阀的污染物而不停止伺服阀系统。 构成:伺服阀包括第一过滤器(111),第二过滤器(112),差压传感器(120),方向切换阀(130)和梭阀(140)。 液压工作油中含有的污染物由第一和第二过滤器过滤。 差压传感器测量第一或第二过滤器的前侧和后侧之间的压差。 方向切换阀选择第一个过滤器或第二个过滤器。 梭阀根据方向切换阀的选择阻挡未使用的过滤器的管道。