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公开(公告)号：US5123446A
公开(公告)日：1992-06-23
申请号：US726031
申请日：1991-07-05
CPC分类号： F16L37/23 , F16L37/34 , Y10T137/87925 , Y10T137/87941 , Y10T137/87949
摘要： A sealing system for high pressure fluid couplings wherein male and female valved coupling parts are interconnected while under fluid pressure, the sealing system including a pair of diverse characteristic seal rings axially spaced in the direction of relative coupling part movement. The seal ring closest to the pressurized medium is semi-rigid to prevent blow-out from its recess during coupling disconnection and interconnection while the second seal ring is of greater elasticity and sealability to prevent leakage. The axial spacing between the seal rings permits adequate internal support for the second seal prior to the opening of the coupling parts' valves.
摘要翻译： 一种用于高压流体联接器的密封系统，其中阳和阴阀联接部件在流体压力下相互连接，所述密封系统包括在相对联接部件运动的方向上轴向间隔开的一对不同的特征密封环。 最靠近加压介质的密封环是半刚性的，以防止在连接断开和互连期间从其凹部吹出，而第二密封环具有更大的弹性和密封性以防止泄漏。 密封环之间的轴向间隔允许在联接部件阀的打开之前的第二密封件具有足够的内部支撑。
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公开(公告)号：US4786029A
公开(公告)日：1988-11-22
申请号：US118565
申请日：1987-11-09
CPC分类号： F16L37/40 , Y10T137/87965
摘要： A coupling for use with pressurized systems permitting coupling of valved coupling parts even though one of the parts may be under high pressure. An axially reciprocal valve which automatically opens upon the coupling halves being connected is guided within a shell within the pressurized coupling half and a sealed relationship between the valve and shell minimizes the area of valve surfaces exposed to the pressurized medium reducing the axial forces imposed upon the valve toward the closed position. A bleed valve communicating with the valve interior permits valve operation with hydraulic systems in the event of seal leakage.
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