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1. 发明公开

EP0952358A2 Hose rupture control valve unit 有权
标题翻译：配管破裂控制阀装置
公开(公告)号：EP0952358A2
公开(公告)日：1999-10-27
申请号：EP99201251.8
申请日：1999-04-20
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Takahashi, Tarou , Sugiyama, Genroku , Toyooka, Tsukasa
IPC分类号： F15B13/01
CPC分类号： F15B20/005 , F15B13/01 , Y10T137/7727
摘要： A hose rupture control valve unit comprises a housing (100) provided with two input/output ports (12). One input/output port (1) is directly attached to a bottom port of a hydraulic cylinder (102), and the other input/output port (2) is connected to one of actuator ports of a control valve via an actuator line (105). Within the housing (100), there are provided a poppet valve body (5) serving as a main valve, a spool valve body (6) serving as a pilot valve which is operated with a pilot pressure supplied as an external signal from a manual pilot valve (108), thereby operating the poppet valve body (5), and a small spool (7) having the function of an overload relief valve. The above construction reduces the number of components arranged in a flow passage through which a hydraulic fluid passes at a large flow rate, and hence a pressure loss. A further reduction in overall size and production cost of the valve unit is achieved.

2. 发明授权

EP0952358B1 Hose rupture control valve unit 有权
标题翻译：配管破裂控制阀装置
公开(公告)号：EP0952358B1
公开(公告)日：2006-06-14
申请号：EP99201251.8
申请日：1999-04-20
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Takahashi, Tarou , Sugiyama, Genroku , Toyooka, Tsukasa
IPC分类号： F15B13/01
CPC分类号： F15B20/005 , F15B13/01 , Y10T137/7727

3. 发明公开

EP0952358A3 Hose rupture control valve unit 有权
标题翻译： Schlauchbruch- Steuerventilaggregat
公开(公告)号：EP0952358A3
公开(公告)日：2000-04-05
申请号：EP99201251.8
申请日：1999-04-20
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Takahashi, Tarou , Sugiyama, Genroku , Toyooka, Tsukasa
IPC分类号： F15B13/01
CPC分类号： F15B20/005 , F15B13/01 , Y10T137/7727
摘要： A hose rupture control valve unit comprises a housing (100) provided with two input/output ports (12). One input/output port (1) is directly attached to a bottom port of a hydraulic cylinder (102), and the other input/output port (2) is connected to one of actuator ports of a control valve via an actuator line (105). Within the housing (100), there are provided a poppet valve body (5) serving as a main valve, a spool valve body (6) serving as a pilot valve which is operated with a pilot pressure supplied as an external signal from a manual pilot valve (108), thereby operating the poppet valve body (5), and a small spool (7) having the function of an overload relief valve. The above construction reduces the number of components arranged in a flow passage through which a hydraulic fluid passes at a large flow rate, and hence a pressure loss. A further reduction in overall size and production cost of the valve unit is achieved.
摘要翻译：软管破裂控制阀单元包括设置有两个输入/输出端口（12）的壳体（100）。一个输入/输出端口（1）直接连接到液压缸（102）的底部端口，另一个输入/输出端口（2）经由致动器线路（105）连接到控制阀的致动器端口中的一个）。在壳体（100）内设置有用作主阀的提升阀体（5），用作先导阀的滑阀体（6），其以从手动提供的作为外部信号的先导压力操作先导阀（108），从而操作提升阀体（5），以及具有过载溢流阀功能的小型阀芯（7）。上述结构减少了布置在液压流体中以大流量通过的流动通道中的部件的数量，并因此减小了压力损失。实现阀单元的总体尺寸和生产成本的进一步减小。

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