公开(公告)号：US4418715A

公开(公告)日：1983-12-06

申请号：US292195

申请日：1981-08-12

申请人： Karoly Balazs ,  Vladislav D. Firstov ,  Miklos Frcska ,  Laszlo Gal ,  Sandor Hlavay ,  Lajos Huber ,  Jozsef Korbuly ,  Laszlo Mahig ,  Juri F. Ponomarenko ,  Juri G. Shein ,  Ferenc Simon

发明人： Karoly Balazs ,  Vladislav D. Firstov ,  Miklos Frcska ,  Laszlo Gal ,  Sandor Hlavay ,  Lajos Huber ,  Jozsef Korbuly ,  Laszlo Mahig ,  Juri F. Ponomarenko ,  Juri G. Shein ,  Ferenc Simon

IPC分类号： F16K17/02 ,  F16K17/04 ,  F16K31/12

CPC分类号： F16K17/04 ,  F16K17/02 ,  F16K17/044 ,  Y10T137/7834 ,  Y10T137/7905

摘要： The invention relates to a pressure limiting valve, mainly for hydraulic mine props, which has a working space with an inlet opening connected to a high-pressure space and an outlet opening connected to low-pressure space in the operative position of the valve, a displaceable first valve member engageable with a valve seat within this working space in the shut-off position of the valve, a spring pressing the first valve member to the valve seat and in a given case, a spring sustaining the valve seat, suitably a gas spring and in which according to the invention the first valve member has transfer passages ensuring communication between the inlet opening and the outlet opening in the open position of the valve, as well as second valve member provided with a frustoconical head facing the cover plate and having a stem loosely fitted in a guide bore formed in the first valve member which is formed with an annular axial flange surrounding the head of the second valve member which is concentrically arranged within this flange.

摘要翻译： 本发明涉及一种主要用于液压矿道的压力限制阀，其具有连接到高压空间的入口和与阀的操作位置连接的低压空间的出口开口的工作空间， 可移位的第一阀构件可与在阀的关闭位置的该工作空间内的阀座接合，弹簧将第一阀构件压向阀座，并且在给定的情况下，弹簧支撑阀座，适当地为气体 弹簧，根据本发明，第一阀构件具有确保在阀的打开位置处的入口和出口之间的连通的传送通道，以及设置有面向盖板的截头圆锥形头部的第二阀构件，并且具有 一个松动地安装在形成在第一阀构件中的引导孔中的杆，该引导孔形成有围绕第二阀构件头部的环形轴向凸缘， 排列在该法兰内。