用于泵送流体,控制进出口。
专利摘要
一种泵,包括与设置有第一阀座和第二阀座的阀腔连通的活塞,以及弹性阀元件,所述弹性阀元件包括第一锥形部分、第二锥形部分和从第一锥形部分的周边延伸的凸缘部分,其中所述凸缘部分与第一阀座配合形成入口阀,所述第二锥形部分与第二阀座配合形成出口阀,并且其中在使用中由压力装置施加到凸缘部分的负压将其从第一阀座提升,并且在使用中由活塞施加到第一锥形部分的正压将第二锥形部分从第二阀座提升。
Original abstractA pump comprising a piston in communication with a valve chamber provided with a first valve seat and a second valve seat, and a resilient valve element comprising a first tapered portion, a second tapered portion and a flange portion extending from a periphery of the first tapered portion, in which the flange portion co-operates with the first valve seat to form an inlet valve, and the second tapered portion co-operates with the second valve seat to form an outlet valve, and in which negative pressure applied to the flange portion by the pressure means in use lifts it from the first valve seat, and positive pressure applied to the first tapered portion by the piston in use lifts the second tapered portion from the second valve seat.
专利附图(8)








来源状态与事件
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