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    • 1. 发明申请
    • PRESSURE CONTROL VALVE
    • 压力控制阀
    • WO2003093708A1
    • 2003-11-13
    • PCT/AU2003/000529
    • 2003-05-06
    • MORRISON, Walter, GeorgeMORRISON, Jean, Hilary
    • MORRISON, Walter, GeorgeMORRISON, Jean, Hilary
    • F16K15/06
    • G05D16/103Y10T137/7808Y10T137/7811
    • A pressure control valve (10) is disclosed which includes an inlet (11); an outlet (12); a valve body (13) between the inlet (11) and the outlet (12); a piston (14) having opposed smaller and larger ends (15, 16) each having a circumferentially extending piston wall, the piston (14) being slideably received within the valve body (13) and having a bore (19) therethrough; a porting assembly (20, 22) for providing a fluid passageway between the inlet (11) and the bore (12), and biasing means (26) for biasing the piston (14) against the pressure at the outlet (12) towards a first position proximate the outlet (12) from a second position proximate the inlet (11); wherein in the first position (FIG 1) fluid communication is made between the inlet (11) and the outlet (12) via the porting assembly (20, 22) and the bore (19), and in the second position fluid communication between the inlet (11) and the outlet (12) is prevented by the circumferentially extending piston wall of the smaller end (15) of the piston (14) cooperating with the porting assembly (20, 22) to close the fluid passageway between the inlet (11) and the bore (19).
    • 公开了一种压力控制阀(10),其包括入口(11); 出口(12); 在入口(11)和出口(12)之间的阀体(13); 具有相对的较小和较大端部(15,16)的活塞(14),每个具有周向延伸的活塞壁,所述活塞(14)可滑动地容纳在所述阀体(13)内并且具有穿过其中的孔(19); 用于在所述入口(11)和所述孔(12)之间提供流体通道的移植组件(20,22)和用于将所述活塞(14)抵抗所述出口(12)处的压力偏置的偏压装置(26) 从靠近入口(11)的第二位置靠近出口(12)的第一位置; 其中在所述第一位置(图1)中,经由所述移入组件(20,22)和所述孔(19)在所述入口(11)和所述出口(12)之间形成流体连通,并且在所述第二位置 入口(11)和出口(12)通过活塞(14)的较小端(15)的周向延伸的活塞壁被阻止,与活塞(14)配合,以便关闭入口(20,22)之间的流体通道 11)和孔(19)。