Title:
PUMP SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/168008
Kind Code:
A3
Abstract:
A fluid pump, for example being adapted to operate in a well bore, and a well bore tool are presented, the fluid pump comprising a pump housing comprising a cylinder, the cylinder having a first and a second chamber and a constriction between the first and the second chamber. The fluid pump further comprises a double action piston assembly arranged movably in the pump housing for pumping fluid, the double action piston assembly extending from the first chamber through the constriction into the second chamber.
Inventors:
HEIJNEN WILHELMUS HUBERTUS PAULUS MARIA (DE)
Application Number:
PCT/EP2017/057845
Publication Date:
December 28, 2017
Filing Date:
April 03, 2017
Export Citation:
Assignee:
YTA B V (NL)
International Classes:
F04B5/02; F04B9/109; F04B9/115; F04B9/135; F04B23/02; F04B47/08
Domestic Patent References:
| WO2006027562A1 | 2006-03-16 |
Foreign References:
| US4405291A | 1983-09-20 | |||
| US4690160A | 1987-09-01 | |||
| US20040037709A1 | 2004-02-26 | |||
| US4678406A | 1987-07-07 | |||
| US4611974A | 1986-09-16 | |||
| US6929064B1 | 2005-08-16 |
Attorney, Agent or Firm:
BLUMBACH & ZINNGREBE (DE)
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