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    • 5. 发明专利
    • Anti jerk valve
    • 防盗阀
    • JP2006316998A
    • 2006-11-24
    • JP2006130582
    • 2006-05-09
    • Eaton Corpイートン コーポレーションEaton Corporation
    • GEHLHOFF WADE L
    • F15B11/16B62D5/07B62D5/09B62D5/28
    • B62D12/00B62D5/093F15B11/0445F15B2211/3051F15B2211/528F15B2211/55F15B2211/57F15B2211/7107F15B2211/7128F15B2211/853F15B2211/8613
    • PROBLEM TO BE SOLVED: To suppress pressure spike in a hydraulic control system. SOLUTION: The hydraulic control system includes a source 11 of fluid having a pressure responsive means 15 and an actuator. A main control valve 21 has ports 27, 29 communicating with the actuator ports by means of first 41 and second 43 conduits, and means to generate a load pressure 45. A pressure spike suppression valve 51 has ports connected across the first and second conduits 41, 43, and includes a spool 65 moveable between a first position blocking communication between the ports, and a second position permitting communication. The pressure spike suppression valve 51 defines a spring chamber 67 including a spring 69 biasing the spool 65 toward the first position, a load signal passage 83 to communicate the load pressure to the spring chamber 67 also to bias the spool 65 toward the first position, and a pressure chamber 81 in communication with the source of fluid 11, and fluid pressure therein biases the spool 65 toward the second position. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:抑制液压控制系统中的压力尖峰。 解决方案:液压控制系统包括具有压力响应装置15和致动器的流体源11。 主控制阀21具有通过第一41和第二管道43与致动器端口连通的端口27,29,以及产生负载压力45的装置。压力抑制阀51具有连接在第一和第二管道41之间的端口 ,43,并且包括可在阻挡端口之间的通信的第一位置和允许通信的第二位置之间移动的线轴65。 压力尖峰抑制阀51限定弹簧室67,弹簧室67包括使阀芯65朝向第一位置偏压的弹簧69,将负载压力传递到弹簧室67的负载信号通道83也用于将阀芯65偏压到第一位置, 以及与流体源11连通的压力室81,并且其中的流体压力使阀芯65朝向第二位置偏压。 版权所有(C)2007,JPO&INPIT