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1. 发明授权

US4821773A Directional control valve 失效
标题翻译：定向控制阀
公开(公告)号：US4821773A
公开(公告)日：1989-04-18
申请号：US164562
申请日：1988-03-07
申请人： Erich Herion , Helmut Motzer
发明人： Erich Herion , Helmut Motzer
IPC分类号： F16K11/07 , F15B13/044
CPC分类号： F15B13/0433 , F15B13/0402 , F16K11/0708 , Y10T137/86622
摘要： A directional control valve for liquid and gaseous fluids includes a valve piston and magnets controlling the valve piston and arranged at a distance at the end faces of the valve piston to define respective chambers therebetween. Flow forces prevailing during operation of the control valve and opposing the actuation force of the magnets are countered by providing a throttle in the connections to the tank to create a dynamic pressure to support the magnetic force. In order to limit the magnitude of the hydraulic force as provided by the dynamic pressure, the chambers in front of the end faces of the valve piston are connected to each other via two passageways in which a pressure relief valve is respectively arranged.
摘要翻译：用于液体和气体流体的方向控制阀包括阀活塞和控制阀活塞的磁体，并且在阀活塞的端面处一定距离设置，以在其间限定相应的室。通过在与罐的连接中提供节气门以产生支撑磁力的动态压力来抵消控制阀操作期间所产生的流动力并且与磁体的致动力相反。为了限制由动压提供的液压力的大小，阀活塞的端面前面的室通过分别布置有泄压阀的两个通道相互连接。

2. 发明授权

US4237930A Safety valve 失效
标题翻译：安全阀门
公开(公告)号：US4237930A
公开(公告)日：1980-12-09
申请号：US950632
申请日：1978-10-11
申请人： Erich Herion , Erich Ruchser
发明人： Erich Herion , Erich Ruchser
IPC分类号： F15B20/00 , F16K37/00 , F15B13/043 , F15B13/08
CPC分类号： F15B20/001 , Y10T137/87209
摘要： The coupling and brake of a press receive pressurized fluid through a safety valve. The safety valve comprises two switching valves, so that if one of the switching valves fails and cannot close the other one can be closed. The safety valve is provided with a pressure-responsive switch which generates a shut-off signal commanding that the press be shut off, in response to a variety of malfunction situations, e.g., when the switching valves are closed but nevertheless a pressure build-up is occurring, or when the switching valves are open but the pressure being furnished to the coupling and brake does not reach or suddenly drops below the threshold levels to which the coupling and brake can respond. A differential pressure-responsive switch can be used to sense fluid flow through the safety valve; if the switching valves are moved to open setting, the differential pressure-responsive switch changes setting in response to the resulting fluid flow to the coupling and brake, but thereafter should revert to the previous setting and if it does not this triggers shut-off of the press.
摘要翻译：压力机的联轴器和制动器通过安全阀接收加压流体。安全阀包括两个切换阀，使得如果一个切换阀故障并且不能关闭，则另一个可以关闭。安全阀设置有压力响应开关，其响应于各种故障情况，例如当切换阀关闭但仍然存在压力积聚时，产生指令压力机切断的切断信号或者当切换阀打开时，但是提供给联轴器和制动器的压力没有达到或突然降低到低于联接器和制动器可以响应的阈值水平。差压响应开关可用于感测通过安全阀的流体流动; 如果切换阀被移动到打开设置，差压响应开关响应于所产生的流体流向联轴器和制动器而改变设定，但此后应该恢复到先前的设定，如果不这样做则触发关闭新闻。

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