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公开(公告)号：US6155502A
公开(公告)日：2000-12-05
申请号：US378694
申请日：1999-08-23
CPC分类号： B05B1/14 , F04C29/0092 , F04C18/126 , F04C23/001 , F04C25/02
摘要： A nozzle device for purging a vacuum pump includes a nozzle, the top portion of the nozzle is a tapered portion, two sides of the tapered portion are installed with nozzle holes for guiding the exhausted air sub-flow to be exhausted from the two sides of vent end.
摘要翻译： 用于吹扫真空泵的喷嘴装置包括喷嘴，喷嘴的顶部是锥形部分，锥形部分的两侧安装有喷嘴孔，用于引导从两侧的排出的排出的空气子流 排气口。
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公开(公告)号：US6123526A
公开(公告)日：2000-09-26
申请号：US156585
申请日：1998-09-18
CPC分类号： F04C23/001
摘要： A multistage pump includes a shaft assembly and a housing and spacing plates. The shaft assembly completed by forming shafts and rotors integrally. The spacing plates defining a plurality of successive compression chambers, each chamber is delimited by two symmetrical spacing plates, there has a ring groove associated with the spacing plates, and having an elastic component placed. When the elastic component pressed by the housing, it became leakage and the clearance between the rotors and the spacing plates be easily controlled, by this way, the pump using parts are easy to manufacture, can be machined accurately and which enable highly accurate assembly to be achieved. As to the assembling method, which is characterized by mounting the high pressure end axial bearing seat and the high pressured end plate, then to control the clearance between the high pressure end plate of the bearing seat and the rotors. Furthermore, to install the spacing plates and the housing make the compression chamber formed.
摘要翻译： 多级泵包括轴组件和壳体和间隔板。 轴组件通过一体形成轴和转子而完成。 间隔板限定多个连续的压缩室，每个室由两个对称的间隔板限定，其中有一个与间隔板相关的环槽，并具有放置的弹性部件。 当由壳体挤压的弹性部件变得泄漏时，转子和间隔板之间的间隙容易控制，这样，泵的使用部件易于制造，可以精确地加工，并且能够高精度地组装 实现。 关于组装方法，其特征在于安装高压端轴向座和高压端板，以控制轴承座的高压端板与转子之间的间隙。 此外，为了安装间隔板和壳体，形成压缩室。
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