公开(公告)号：EP0063948A1

公开(公告)日：1982-11-03

申请号：EP82302135.7

申请日：1982-04-26

Applicant: Geosource Inc.

Inventor： Banks, James W.

IPC: F17D3/08

CPC classification number: F16L55/46 ,  Y10T137/4891

Abstract: An injector valve (10) for injecting a charge of a substance such as a plug or a ball into a flow line (12). The injector valve (10) comprises a valve cylinder (20) and a piston (18) which is displaceable in the valve cylinder (20). The valve cylinder (20) has an inlet channel (28) and an outlet channel (30) for connection into a flow line (12) for fluid flow through the valve cylinder (20) between the inlet and outlet channels (28 and 30). The valve cylinder (20) has a loading port (14) for loading a charge of a substance into the injector valve (10). The piston (18) has an injection passageway (22) which is positioned for the piston (18) to be displaceable in the valve cylinder between a loading position where the injection passageway (22) is in register with the loading port (14), and an injection position where the injection passageway (22) is in register with the inlet and outlet channels (28 and 30). An intermediate seal (78) is provided to provide a seal between the piston (18) and the valve cylinder (20), the intermediate seal (78) being positioned to be between the loading port (14) and the injection passageway (22) when the piston (18) is in its injection position; and a pressure balancing cavity area (82) is provided between the valve cylinder (20) and the piston (18) and is positioned to communicate with the intermediate seal (78) when the piston (18) is displaced between its injection and loading positions.

Abstract translation: 一种用于将诸如塞子或球的物质的电荷注入到流动管线（12）中的喷射器阀（10）。 喷射阀（10）包括可在阀缸（20）中移动的阀缸（20）和活塞（18）。 阀芯（20）具有入口通道（28）和用于连接到流线（12）中的出口通道（30），用于流体流过入口和出口通道（28和30）之间的气缸（20） 。 阀筒（20）具有用于将物质的装料装载到喷射阀（10）中的装载口（14）。 活塞（18）具有注射通道（22），其被定位用于活塞（18）能够在注射通道（22）与装载口（14）对准的装载位置之间在阀筒中移动， 以及喷射通道（22）与入口和出口通道（28和30）对准的喷射位置。 设置中间密封件（78）以在活塞（18）和阀缸（20）之间提供密封，中间密封件（78）定位成位于装载口（14）和注射通道（22）之间， 当活塞（18）处于其注射位置时; 并且在所述阀缸（20）和所述活塞（18）之间设置有压力平衡腔区域（82），并且当所述活塞（18）在其注射位置和装载位置之间移动时，所述压力平衡腔区域（82）被定位成与所述中间密封件（78）连通 。