Invention Grant
- Patent Title: Multi-stage pump assembly having a pressure controlled valve for controlling recirculation of fluid from the pump stage outlet to the pump stage inlet
- Patent Title (中): 多级泵组件具有用于控制流体从泵级出口到泵级入口的再循环的压力控制阀
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Application No.: US14118733Application Date: 2012-05-18
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Publication No.: US09388809B2Publication Date: 2016-07-12
- Inventor: Mark Joseph Denny
- Applicant: Mark Joseph Denny
- Applicant Address: GB Middlesex
- Assignee: BP EXPLORATION OPERATING COMPANY LIMITED
- Current Assignee: BP EXPLORATION OPERATING COMPANY LIMITED
- Current Assignee Address: GB Middlesex
- Agency: Nixon & Vanderhye P.C.
- Priority: EP11250542 20110520
- International Application: PCT/EP2012/059249 WO 20120518
- International Announcement: WO2012/159985 WO 20121129
- Main IPC: F03C2/00
- IPC: F03C2/00 ; F03C4/00 ; F04C2/00 ; F04C18/00 ; F04C28/26 ; F04C18/48 ; F04C18/16 ; F04C28/10 ; F04C2/16 ; F04C11/00 ; F04C13/00 ; F04C14/26 ; F04C18/08
Abstract:
Pump having a pump inlet, a pump outlet, at least two threaded rotors and a pressure controlled valve. The pressure controlled valve is capable of controlling re-circulation of fluid from the pump outlet to the pump inlet. The pressure controlled valve can be a control valve. A multiple stage pump assembly is also provided having least two pumps arranged in series, in which at least one of the pumps is the aforementioned pump.
Public/Granted literature
- US20140099225A1 PUMP Public/Granted day:2014-04-10
Information query
