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    • 8. 发明授权
    • Spool valve arrangement
    • 阀芯装置
    • US4056126A
    • 1977-11-01
    • US661164
    • 1976-02-25
    • Manfred HauserWerner Schumacher
    • Manfred HauserWerner Schumacher
    • F16K31/06F15B13/044
    • F16K31/0613Y10T137/86622Y10T137/8671
    • A spool valve arrangement includes a housing having a flow-through passage formed with a fluid-admitting inlet and a pair of fluid-discharging outlets, and a pair of pressure-relief chambers each associated with a respective outlet for relieving pressure thereat. The arrangement further comprises a spool slide having respective ends each facing into one of the pressure-relief chambers and also has a pair of lands. The spool slide is mounted in the passage for movement from a neutral position in which the lands prevent communication between the inlet and the outlets and in which communication is also prevented between the latter and their associated chambers, towards operative positions in which pressure relief is permitted at a respective one of the outlets so that pressurized fluid escaping from one outlet into its associated chamber acts on the respective end of the slide which faces the latter and tends to accelerate the movement of the spool slide towards one of its operative positions. Attenuation elements, each formed with a deflecting surface positioned to be impinged by the pressurized fluid escaping into the respective pressure-relief chamber, dampens the acceleration of the spool slide and slows the movement of the latter towards the respective operative positions.
    • 滑阀装置包括具有形成有流体容纳入口和一对流体排出口的流通通道的壳体,以及一对分别与相应出口相关联的排泄室,用于缓解压力。 该装置还包括滑阀,其具有各自的端部,每个端部均面向其中一个压力释放室,并且还具有一对平台。 滑阀滑块安装在通道中,用于从中间位置移动,在该中间位置,平台防止入口和出口之间的连通,并且还可以在后者和其相关联的腔室之间进行连通以防止压力释放的操作位置 在相应的一个出口处,使得从一个出口排出到其相关联的室中的加压流体作用在面向其的滑动件的相应端部上,并且趋向于加速滑阀滑块朝向其操作位置之一运动。 每个形成有被定位成被加压流体撞击到相应的减压室中的偏转表面的衰减元件减弱了滑阀滑块的加速度并且减慢了后者朝向相应操作位置的运动。