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发明公开
CN104989514A 高性能的真空文丘里泵 无效 - 驳回

高性能的真空文丘里泵
摘要：
本发明公开了一种高性能的真空文丘里泵。文丘里阀组件具有流管、与流管一体地形成的上端口、设置在流管中的流腔、入口、出口和设置在流管中的文丘里喷嘴，入口形成为流管的部分使得入口形成流腔的一部分，出口形成为流管的部分使得出口形成流腔的一部分。加压空气从入口流入到流腔中，使得加压空气围绕文丘里喷嘴流动。清除蒸汽从上端口流入到流腔中，且加压空气的流速在围绕文丘里喷嘴流动后增加，从而在清除蒸汽与加压空气在流管中混合之后增加了清除蒸汽的流。
摘要（英）：

The present invention relates to a high performance vacuum venturi pump. A venturi valve assembly, having a flow tube, an upper port integrally formed with flow tube, a flow cavity disposed within the flow tube, an inlet formed as part of the flow tube such that the inlet forms a part of the flow cavity, an outlet formed as part of the flow tube such that the outlet forms a part of the flow cavity, and a venturi nozzle disposed in the flow tube. Pressurized air flows into the flow cavity from the inlet such that the pressurized air flows around the venturi nozzle. Purge vapor flows into the flow cavity from the upper port, and the flow rate of the pressurized air is increased after flowing around the venturi nozzle, increasing the flow of the purge vapor after the purge vapor is mixed with the pressurized air in the flow tube.

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