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1. 发明公开

EP0330430A2 High pressure hydraulic flow control valve 失效
标题翻译： Hydraulisches Hochdruckstromregellventil。
公开(公告)号：EP0330430A2
公开(公告)日：1989-08-30
申请号：EP89301674.1
申请日：1989-02-21
申请人： Diesel Equipment Limited
发明人： Martin, Paul H. , Martin, John C. , Furzer, Roy G. R.
IPC分类号： F15B13/042 , F16K11/10
CPC分类号： F15B13/02 , Y10T137/7768 , Y10T137/7782 , Y10T137/7835 , Y10T137/87177 , Y10T137/87394 , Y10T137/87845 , Y10T137/87861
摘要： A high pressure hydraulic flow control valve (16) is formed with a spool (62) which is capable of operating as a conventional spool to control the flow of fluid from an input port (38) to an output port (40) or to a return port (50). The spool also provides overload protection which will permit fluid to pass from the input port (38) directly to the return port (50) when an overload pressure condition exists in the fluid supply line. In alternative structure, the overload pressure release system may be incorporated into the valve which is used to control the return of fluid from the output port (40) to the return passage (50). The high pressure hydraulic flow control valve is formed from a die-cast housing (34) and has hardened seats mounted in access passages so as to bear against a seating shoulder. Preferably, a retaining sleeve is mounted in the access passage to bear against the hardened seat to retain it against the seating shoulder.
摘要翻译：高压液压流量控制阀（16）形成有一个阀芯（62），该阀芯能够作为传统阀芯操作，以控制流体从输入端口（38）到输出端口（40）的流动返回端口（50）。阀芯还提供过载保护，当流体供应管线中存在过载压力条件时，允许流体从输入端口（38）直接传递到返回端口（50）。在替代结构中，过载压力释放系统可以结合到阀中，该阀用于控制流体从输出端口（40）返回到返回通道（50）的返回。高压液压流量控制阀由压铸壳体（34）形成，并且具有安装在进入通道中以固定在座椅肩上的硬化座。优选地，保持套筒安装在进入通道中以抵靠硬化的座椅以将其保持抵靠着座椅的肩部。

2. 发明公开

EP0330430A3 High pressure hydraulic flow control valve 失效
标题翻译：高压液压流量控制阀
公开(公告)号：EP0330430A3
公开(公告)日：1990-07-18
申请号：EP89301674.1
申请日：1989-02-21
申请人： Diesel Equipment Limited
发明人： Martin, Paul H. , Martin, John C. , Furzer, Roy G. R.
IPC分类号： F15B13/042 , F16K11/10
CPC分类号： F15B13/02 , Y10T137/7768 , Y10T137/7782 , Y10T137/7835 , Y10T137/87177 , Y10T137/87394 , Y10T137/87845 , Y10T137/87861
摘要： A high pressure hydraulic flow control valve (16) is formed with a spool (62) which is capable of operating as a conventional spool to control the flow of fluid from an input port (38) to an output port (40) or to a return port (50). The spool also provides overload protection which will permit fluid to pass from the input port (38) directly to the return port (50) when an overload pressure condition exists in the fluid supply line. In alternative structure, the overload pressure release system may be incorporated into the valve which is used to control the return of fluid from the output port (40) to the return passage (50). The high pressure hydraulic flow control valve is formed from a die-cast housing (34) and has hardened seats mounted in access passages so as to bear against a seating shoulder. Preferably, a retaining sleeve is mounted in the access passage to bear against the hardened seat to retain it against the seating shoulder.
摘要翻译：高压液压流量控制阀（16）形成有一个阀芯（62），该阀芯能够作为传统阀芯操作，以控制流体从输入端口（38）到输出端口（40）的流动返回端口（50）。阀芯还提供过载保护，当流体供应管线中存在过载压力条件时，允许流体从输入端口（38）直接传递到返回端口（50）。在替代结构中，过载压力释放系统可以结合到阀中，该阀用于控制流体从输出端口（40）返回到返回通道（50）的返回。高压液压流量控制阀由压铸壳体（34）形成，并且具有安装在进入通道中以固定在座椅肩上的硬化座。优选地，保持套筒安装在进入通道中以抵靠硬化的座椅以将其保持抵靠着座椅的肩部。

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