公开(公告)号：US5727441A

公开(公告)日：1998-03-17

申请号：US376271

申请日：1995-01-20

申请人： Chiun Lern Fu ,  Jiun-Jeng Chen ,  Chaur-Chyn Luoh ,  Chen-Der Tsai

发明人： Chiun Lern Fu ,  Jiun-Jeng Chen ,  Chaur-Chyn Luoh ,  Chen-Der Tsai

IPC分类号： F04B1/20 ,  F04B13/04

CPC分类号： F04B1/2042

摘要： An improved valve plate structure for use in axial plunger pumps is disclosed. It comprises: (a) a valve plate, which comprises a suction port, a displacement port, and a pressure build-up zone therebetween; (b) a valve cover, which is in close contact with the valve plate, comprises a suction port at a location corresponding to the suction port of the valve plate and a displacement port at a location corresponding to the displacement port of the valve plate; (c) a flow-diverted channel formed in the pressure build up zone of the valve plate; (d) a through hole provided in the bottom of the flow-diverted channel penetrating through the bottom part of the valve plate; (e) a guided channel formed in the valve cover at an interface between the cover and the valve plate abutting the through hole of the flow-diverted channel. The guided channel comprises a receptacle, which can be connected to the guided channel via the through hole, and an oil guided ditch which connects the receptacle with the second displacement port of the cover, whereby a spring-resisted seal device is provided in the receptacle of the guided channel of the valve cover the spring-resisted seal device is structured such that, under normal conditions, its spring force will push against and close the through hole of the valve plate, thus preventing the flow of fluid from the flow-diverted channel to the guided channel.

摘要翻译： 公开了一种用于轴向柱塞泵的改进的阀板结构。 其包括：（a）阀板，其包括吸入口，位移口和它们之间的压力积聚区域; （b）与阀板紧密接触的阀盖包括在对应于阀板的吸入口的位置处的吸入口和与阀板的位移口对应的位置处的位移口; （c）形成在阀板的压力积聚区中的流动转向通道; （d）设置在贯穿阀板的底部的分流流路的底部的通孔; （e）导向通道，其形成在所述盖和所述阀板之间的与所述流动通道的通孔相邻的界面处的所述阀盖中。 引导通道包括可以经由通孔连接到被引导通道的插座和将插座与盖的第二移位端口连接的导油沟，由此在容器中设置弹性阻挡的密封装置 弹簧阻挡密封装置的阀盖导向通道的构造使得在正常情况下，其弹簧力将推动和关闭阀板的通孔，从而防止流体从流动的流体 通道到引导通道。