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1. 发明申请

US20050112003A1 Pump design for circulating supercritical carbon dioxide 失效
标题翻译：循环超临界二氧化碳的泵设计
公开(公告)号：US20050112003A1
公开(公告)日：2005-05-26
申请号：US10718964
申请日：2003-11-21
申请人： William Jones , Bryan Seegers , Hugh Spilsbury
发明人： William Jones , Bryan Seegers , Hugh Spilsbury
IPC分类号： F04B15/08 , F04D7/02 , F04D13/06 , F04D29/02 , F04B17/00 , F04B35/04
CPC分类号： F04B15/08 , F04D7/02 , F04D13/0633 , F04D13/064 , F04D29/026 , F05D2300/2283 , F05D2300/436
摘要： In accordance with an embodiment of the present invention, a pump assembly for circulating a supercritical fluid is disclosed. The pump assembly comprises an impeller for pumping fluid between a pump inlet and a pump outlet; a rotating pump shaft coupled to the impeller, wherein the pump shaft is supported by corrosion resistant bearings; a rotor of a DC motor potted in epoxy and encased in a non-magnetic material sleeve; and a stator sealed from the fluid via a polymer sleeve. The pump can be of centrifugal type. The bearings can be made of silicon nitride balls combined with bearing races made of Cronidur® and can operate without oil or grease lubrication. The polymer sleeve can be a PEEK™ sleeve which forms a casing for the stator. The non-magnetic material sleeve encasing the rotor of the DC motor is preferably made of stainless steel. A portion of the fluid passing through the pump assembly can be diverted over the bearings and/or the rotor and stator.
摘要翻译：根据本发明的实施例，公开了一种用于循环超临界流体的泵组件。泵组件包括用于在泵入口和泵出口之间泵送流体的叶轮; 联接到叶轮的旋转泵轴，其中泵轴由耐腐蚀轴承支撑; 直流电动机的转子，以环氧树脂封装并封装在非磁性材料套筒中; 以及通过聚合物套筒与流体密封的定子。泵可以是离心式的。轴承可以由与Cronidur（R）制成的轴承座组合的氮化硅球制成，并可在无油脂润滑的情况下运行。聚合物套管可以是形成用于定子的壳体的PEEK TM套筒。封装DC电机的转子的非磁性材料套筒最好由不锈钢制成。通过泵组件的流体的一部分可以转过轴承和/或转子和定子。

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