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1. 发明申请

WO9950524A3 SUBSEA MUD PUMP 审中-公开
标题翻译： SUBSEA泥浆泵
公开(公告)号：WO9950524A3
公开(公告)日：1999-12-02
申请号：PCT/US9906111
申请日：1999-03-26
申请人： HYDRIL CO
发明人： MOTT KEITH C DI , PELATA KENNETH L , COLVIN KENNETH W
IPC分类号： E21B21/00 , E21B21/01 , E21B21/08 , E21B33/08 , E21B43/36 , F04B19/00 , F04B43/06 , F04B17/00 , E21B15/02 , F04B35/02 , F04B43/10
CPC分类号： F04B19/003 , E21B21/001 , E21B21/01 , E21B21/08 , E21B33/085 , E21B43/36 , E21B2021/006 , F04B43/06 , Y10T137/87217
摘要： A positive-displacement pump (102) includes multiple pumping elements (355, 356). Each pumping element having a pressure vessel (356) with a first (372) and a second (370) chamber and a separating member (362) disposed between the first (372) and second (370) chambers. The first (372) chambers and the second (370) chambers are hydraulically connected to receive and discharge fluid, wherein the separating members (362) move within the pressure vessels (356) in response to pressure differential between the first (372) and second (370) chambers. A valve assembly (378) having suction (380) and discharge (382) valves communicates with the first (372) chambers. The suction (380) and discharge (382) valves are operable to permit fluid to alternately flow into and out of the first (372) chambers. A hydraulic drive (420) alternately supplies hydraulic fluid to and withdraws hydraulic fluid from the second (370) chambers such that the fluid discharged from the first (372) chambers is free of pulsation.
摘要翻译：正排量泵（102）包括多个泵送元件（355,356）。每个泵送元件具有带有第一（372）和第二（370）室的压力容器（356）和设置在第一（372）和第二（370）室之间的分离构件（362）。第一（372）腔室和第二腔室（370）液压连接以接收和排出流体，其中分离构件（362）响应于第一（372）和第二腔室（372）之间的压差而在压力容器（356）内移动（370）室。具有抽吸（380）和排出（382）阀的阀组件（378）与第一（372）室连通。抽吸（380）和排出（382）阀可操作以允许流体交替地流入和流出第一（372）室。液压驱动器（420）交替地向第二（370）室供应液压流体并从其中取出液压流体，使得从第一（372）室排放的流体没有脉动。

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