公开(公告)号：US4819692A

公开(公告)日：1989-04-11

申请号：US49395

申请日：1987-04-29

申请人： Rohn L. Olson ,  Jose G. Caero

发明人： Rohn L. Olson ,  Jose G. Caero

IPC分类号： F16L29/00 ,  F16L29/04 ,  F16L37/28 ,  F16L37/36

CPC分类号： F16L29/04 ,  Y10T137/87949 ,  Y10T137/87973

摘要： A quick connect/disconnect hydraulic coupler is provided especially for connecting rigid hydraulic members where no axial movement of the coupling halves can be achieved. The quick coupler comprises a male connector attached to one hydraulic line and a female connector attached to another hydraulic line. The male and female connectors each include an annular check valve that is spring-biased against a poppet seat to prevent loss of hydraulic fluid when the coupler halves are disconnected. The male connector has an annular coupling nut surrounding and confining the male check valve. When the male and female connector halves are aligned, the coupling nut can be moved axially toward the female connector and rotated to engage threads on the outside circumference of the female connector. Tightening the coupling nut onto the female connector forces the male check valve to extend and to form a seal with the female check valve. Tightening the coupling nut also forces both the male and female check valves off their poppet seats to open hydraulic ports and establish fluid flow through the coupler.

摘要翻译： 提供快速连接/断开液压联轴器，尤其适用于连接不能实现联轴器半部的轴向运动的刚性液压构件。 快速联接器包括连接到一个液压管线的公连接器和连接到另一液压管线的阴连接器。 公连接器和阴连接器各自包括环形止回阀，该止回阀弹簧偏置抵靠提升阀座，以防止当连接器半部断开时液压流体的损失。 公连接器具有围绕并限制公止动阀的环形联接螺母。 当阳连接器和阴连接器半部对准时，联接螺母可以朝向阴连接器轴向移动并且旋转以接合阴连接器的外圆周上的螺纹。 将联轴器螺母拧紧到阴连接器上将强制公止动阀延伸并与母单向阀形成密封。 拧紧联轴器螺母还会迫使公和止回阀从其提升阀座上脱离以打开液压端口并建立通过联接器的流体流动。

公开(公告)号：US4679765A

公开(公告)日：1987-07-14

申请号：US853312

申请日：1986-04-14

申请人： Kenneth D. Kramer ,  Rohn L. Olson

发明人： Kenneth D. Kramer ,  Rohn L. Olson

IPC分类号： F15B13/01 ,  F16K31/40 ,  F16K31/122

CPC分类号： F15B13/015 ,  F16K31/408

摘要： An orifice controlled poppet valve includes a pilot poppet pressure balancing arrangement which prevents fluid leakage between the valve inlet and outlet. The pressure balancing arrangement includes a pin slidable in a passage in the main valve member, which passage extends between the inlet and a pilot outlet passage. One end of the pin engages a stem which projects from from the pilot poppet. The other end of the pin engages a flexible diaphragm which forms a seal between the valve inlet and the passage which receives the pin. An inlet pilot passage includes an annular clearance upstream of an orifice. The radial dimension of the annular clearance is smaller than the diameter of the orifice.

摘要翻译： 孔口控制的提升阀包括一个先导式提升阀压力平衡装置，其防止阀入口和出口之间的流体泄漏。 压力平衡装置包括可在主阀构件的通道中滑动的销，该通道在入口和先导出口通道之间延伸。 销的一端接合从导向提升阀突出的杆。 销的另一端接合柔性隔膜，该柔性隔膜在阀入口和接收销的通道之间形成密封。 入口引导通道包括孔口上游的环形间隙。 环形间隙的径向尺寸小于孔口的直径。

公开(公告)号：US4494726A

公开(公告)日：1985-01-22

申请号：US520925

申请日：1983-08-08

申请人： Viraraghavan S. Kumar ,  Rohn L. Olson

发明人： Viraraghavan S. Kumar ,  Rohn L. Olson

IPC分类号： F16K31/06 ,  F16K31/40 ,  F16K31/02

CPC分类号： F16K31/408

摘要： A solenoid-operated control valve has a main orifice and a valve member for controlling fluid flow therethrough. A leakage orifice extends through the valve member. A check valve seals the leakage orifice when the main orifice is blocked and moves to open the leakage orifice before the main orifice is opened.

摘要翻译： 电磁操作控制阀具有用于控制流过其中的流体的主孔和阀构件。 泄漏孔延伸穿过阀构件。 当主孔被堵塞时，止回阀密封泄漏孔，并在主孔打开之前移动以打开泄漏孔。