-
公开(公告)号：US5297579A
公开(公告)日：1994-03-29
申请号：US868361
申请日：1992-04-14
CPC分类号： F16K15/06 , F16K15/04 , Y10T137/7857 , Y10T137/7917 , Y10T137/7919 , Y10T137/7933
摘要： The plunger of the valve has a semi-spherical valve member of reduced diameter, so that it is inwardly spaced from the ribs of the cage. The plunger is centralized and guided by top and bottom stems attached to the ball and working loosely in apertured webs carried by the cage and seat member. The cage has 2 or 3 ribs only, so that the windows are wider. The cage web is downwardly spaced from the top of the cage, to maximize the area of the cage outlet. The valve member has a reduced diameter neck at its upper end, to keep the valve member downwardly spaced from the cage web when the valve is fully open. As a result of these features the cross-sectional areas of the flow passage through the opened valve are increased. The stems are preferably straight-sided and the web openings are circular so fluid may flush out solids packing between the stems and webs. The valve has been improved to increase flow capacity and ensure line contact seating which can be maintained even though there is wear of the parts.
摘要翻译： 阀的柱塞具有减小直径的半球形阀构件，使得其与保持架的肋向内间隔开。 柱塞集中并由附接到球体的顶部杆和底部杆引导，并且由保持架和座椅构件承载的多孔网中松动地工作。 笼子只有2或3个肋，使窗户更宽。 笼腹网与保持架的顶部向下间隔开，以最大限度地提高保持架出口的面积。 阀构件在其上端处具有缩径的颈部，以在阀完全打开时保持阀构件与保持架腹板向下间隔开。 作为这些特征的结果，通过打开的阀的流动通道的横截面面积增加。 杆优选是直的，并且腹板开口是圆形的，因此流体可以冲出杆和腹板之间的固体填充物。 改进了阀门以增加流量并确保线路接触座位，即使有部件磨损，也可以保持阀座接触。
-
公开(公告)号：US5117861A
公开(公告)日：1992-06-02
申请号：US529497
申请日：1990-05-29
CPC分类号： F16K15/06 , F16K15/04 , Y10T137/7857 , Y10T137/7917 , Y10T137/7919 , Y10T137/7933
摘要： The plunger of the valve has a ball of reduced diameter, so that it is inwardly spaced from the ribs of the cage. The plunger is centralized and guided by top and bottom stems attached to the ball and working in apertured webs carried by the cage and seat member. The cage has 3 ribs only, so that the windows are wider. As a result of these features the areas of the flow passage through the valve are increased. The stems are straight-sided and the web openings are circular so fluid may flush out solids packing between the stems and webs. The valve has been improved to increase flow capacity.
摘要翻译： 阀的柱塞具有直径减小的球，使得其与保持架的肋向内间隔开。 柱塞集中并由附接到球的顶部和底部杆引导并且在由保持架和座椅构件承载的多孔网中工作。 笼子只有3个肋，使窗户更宽。 作为这些特征的结果，通过阀的流动通道的面积增加。 杆是直的，并且腹板开口是圆形的，因此流体可以冲出杆和腹板之间的固体填充物。 改进了阀门以增加流量。
-
3.发明授权
公开(公告)号：US5249936A
公开(公告)日：1993-10-05
申请号：US891579
申请日：1992-06-01
摘要： The travelling check valve of the pump is adapted to be automatically opened at the bottom of the down stroke, so that gasses trapped between the travelling and standing check valves may escape and eliminate gas locking. The valve member of the travelling check valve is provided with a downwardly extending, axial stem. The barrel carries a stationary pin extending transversely across its bore just above the standing check valve. The pump piston, carrying the travelling check valve, brings the stem into contact with the pin as the piston reaches the bottom of its down stroke. This causes the valve member to temporarily unseat until the piston commences the up stroke.
摘要翻译： 泵的行进止回阀适于在下冲行程的底部自动打开，从而捕获行进式和立式止回阀之间的气体可能会逸出并消除气体锁定。 行进止回阀的阀构件设置有向下延伸的轴向杆。 枪管承载一个固定销，横向穿过立管止回阀正上方的孔。 携带行驶止回阀的泵活塞在活塞到达其下冲程的底部时使杆与销接触。 这使得阀构件暂时不起作用直到活塞开始向上冲程。
-
-
搜索结果
3 条记录 (耗时 0.018 秒)
