Hydraulic power steering system with a pressure relief valve
    1.
    发明授权
    Hydraulic power steering system with a pressure relief valve 失效
    液压动力转向系统带减压阀

    公开(公告)号:US06394219B1

    公开(公告)日:2002-05-28

    申请号:US09595836

    申请日:2000-06-16

    IPC分类号: B62D5087

    摘要: A hydraulic power steering system (10) for turning steerable wheels of a vehicle. The system (10) comprises a steering gear (12) including a hydraulic motor and a steering valve. The steering gear is susceptible to pressure fluctuations that cause noise during steering. The system (10) further comprises a pressure relief valve (14) having an unactuated condition and actuated conditions. The pressure relief valve (14), in the unactuated condition, restricts fluid flow through the pressure relief valve (14). In an actuated condition, the pressure relief valve (14) permits fluid flow through the pressure relief valve (14). The pressure relief valve (14) progressively is operable from the unactuated condition to an actuated condition as a pressure differential between the inlet (38) and the outlet (40) of the steering gear (12) increases.

    摘要翻译: 一种用于转向车辆的转向轮的液压动力转向系统(10)。 系统(10)包括包括液压马达和转向阀的舵机(12)。 舵机易受压力波动的影响,导致转向过程中的噪音。 系统(10)还包括具有未致动状态和致动状态的减压阀(14)。 在未致动状态下的减压阀(14)限制流过压力释放阀(14)的流体。 在致动状态下,减压阀(14)允许流体流过压力释放阀(14)。 随着转向装置(12)的入口(38)和出口(40)之间的压力差增加,逐渐地,减压阀(14)可从未致动状态操作到致动状态。