公开(公告)号：US06314997B1

公开(公告)日：2001-11-13

申请号：US09564869

申请日：2000-05-04

申请人： Shigeru Yamashita

发明人： Shigeru Yamashita

IPC分类号： F15B1308

CPC分类号： F15B20/00 ,  B66F9/22 ,  F15B11/162 ,  F15B2211/3116 ,  F15B2211/4053 ,  F15B2211/41509 ,  F15B2211/41554 ,  F15B2211/426 ,  F15B2211/428 ,  F15B2211/46 ,  F15B2211/50518 ,  F15B2211/55 ,  F15B2211/6303 ,  F15B2211/71 ,  F15B2211/781 ,  Y10T137/87185 ,  Y10T137/87885

摘要： A multiple valve apparatus is formed of a priority valve mechanism for dividing an operating liquid into a priority flow and a surplus flow, at least one switching valve mechanism attached to the priority valve mechanism, a parallel line for guiding the surplus flow discharged from the priority valve mechanism to an input port of the at least one switching valve mechanism, a tank line for discharging the operating liquid to a tank, and an urgent valve situated between the parallel line and the tank line. The urgent valve is operated in a predetermined condition to regulate an operation actuated by the surplus flow through the at least one switching valve mechanism. Therefore, the supply of the operating fluid only to the switching mechanism can be stopped or regulated by this simple structure, and an automatic stop or regulating function of an actuator can be achieved in the apparatus.

摘要翻译： 多阀装置由优先阀机构形成，用于将操作液体分为优先流和剩余流，至少一个连接到优先阀机构的切换阀机构，用于引导从优先排出的剩余流的平行线 阀机构连接到至少一个切换阀机构的输入端口，用于将操作液体排放到罐的罐管线以及位于平行管线和罐管线之间的紧急阀。 紧急阀在预定条件下操作以调节由通过至少一个切换阀机构的剩余流动致动的操作。 因此，仅通过这种简单的结构可以停止或限制对切换机构供给工作流体，能够在该装置中实现致动器的自动停止或调节功能。

公开(公告)号：US5752546A

公开(公告)日：1998-05-19

申请号：US713232

申请日：1996-09-12

申请人： Shigeru Yamashita

发明人： Shigeru Yamashita

IPC分类号： F16K17/18 ,  F15B11/02 ,  F15B11/028 ,  F15B11/16 ,  F15B13/01 ,  F16K11/07 ,  F16K15/02 ,  F16K17/04 ,  F15B13/08

CPC分类号： F15B13/01 ,  Y10T137/7929 ,  Y10T137/87169 ,  Y10T137/87185

摘要： Fluid control valves are combined to form a layered multi-directional valve, each having a high-pressure port connected to a high-pressure source, a tank port opened to a low-pressure region, an actuator port, a spool capable of connecting said actuator port selectively either to the high-pressure port or to the tank port, and a load check valve capable of blocking the passage of a fluid through the high-pressure port. The load check valve includes a poppet which encloses a spring chamber and is forwardly biased by a spring contained inside the spring chamber. The poppet is movable between a backward position and a forward position inside a valve-containing chamber which has an opening on a portion of the outer wall of the control valve but this opening is blocked by a portion of the outer wall of another similarly structured control valve. When the poppet is moved to its forward position, the poppet comes into contact with a seat disposed inside the high-pressure port to block it, but high-pressure oil on one side of the load check valve in the high-pressure port can flow into the spring chamber through an liquid inlet formed through the poppet. Grooves are formed either on the side of the poppet or on the side of the outer wall of the adjacent control valve which comes into contact with the poppet when the poppet is at its backward position.

摘要翻译： 流体控制阀组合形成层状多向阀，每个都具有连接到高压源的高压端口，向低压区域开口的罐口，致动器端口，能够连接所述 致动器端口选择性地到高压端口或罐口，以及能够阻挡流体通过高压端口的负载止回阀。 负载止回阀包括一个包围弹簧室的提升阀，并由弹簧室内的弹簧向前偏置。 提升阀可以在具有在控制阀的外壁的一部分上的开口的阀容纳室内的向后位置和向前位置之间移动，但是该开口被另一类似结构化控制的外壁的一部分阻挡 阀。 当提升阀移动到其前进位置时，提升阀与设置在高压端口内部的座接触以阻塞，但是高压端口中的负载止回阀一侧的高压油可以流动 通过通过提升阀形成的液体入口进入弹簧室。 沟槽形成在提升阀的侧面或相邻控制阀的外壁的侧面，当提升阀处于其后部位置时，与提升阀接触。

公开(公告)号：USD351025S

公开(公告)日：1994-09-27

申请号：US781

申请日：1992-10-20

申请人： Shigeru Yamashita ,  Yasuo Hattori

设计人： Shigeru Yamashita ,  Yasuo Hattori