Title:
METERING PUMP AND ITS DRVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2009/132494
Kind Code:
A1
Abstract:
A metering pump includes a pump sleeve (3) and a pump body (2) slidably mounted in the pump sleeve (3), a plunger (1) is arranged in the chamber of the pump body (2), a flow guiding hole communicated with the chamber is provided in the side wall of the pump body (2), and a liquid suction hole (9) and a liquid discharging hole (10) are provided in the pump sleeve (3), the openings of the liquid suction hole (9) and the liquid discharging hole (10) opened on the inner side of the pump sleeve (3) are on the sliding track of the opening of the flow guiding hole (11) opened on the pump body (2).
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Inventors:
LIN BO (CN)
LIN JIANG (CN)
LIN JIANG (CN)
Application Number:
PCT/CN2008/071796
Publication Date:
November 05, 2009
Filing Date:
July 29, 2008
Export Citation:
Assignee:
LIN BO (CN)
LIN JIANG (CN)
LIN JIANG (CN)
International Classes:
F04B53/00; F04B13/00; F04B53/14
Domestic Patent References:
| WO2000061943A1 | 2000-10-19 |
Foreign References:
| US4105146A | 1978-08-08 | |||
| CN101144466A | 2008-03-19 | |||
| CN2837546Y | 2006-11-15 | |||
| CN2895789Y | 2007-05-02 | |||
| DE4330574A1 | 1995-03-16 |
Other References:
None
See also references of EP 2270334A4
See also references of EP 2270334A4
Attorney, Agent or Firm:
CHENGDU JIUDINGTIANYUAN INTELLECTUAL PROPERTY AGENCY LTD. (Human Art Wisdom Plaza 33 Ximianqiao Street, Wuhou Distric, Chengdu Sichuan 1, CN)
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