Title:
AIR PRESSURE DIFFERENTIAL TYPE ENERGY SAVING WATER PUMPING DEVICE
Document Type and Number:
WIPO Patent Application WO/2009/155743
Kind Code:
A1
Abstract:
An air pressure differential type energy saving water pumping device, includes a water storage tank (1), an air pressure differential pump (2), a compressor air storage tank (3), a water tower (4) and a water pumping pipe (5); the air pressure differential pump (2) includes left and right water pumping cylinders (20), left and right pistons (200), left and right water pumping chambers (201),left and right stretchable membranes (230) separating air from water, a double output shaft low friction air cylinder (25), an air cylinder piston (251) and left and right inner covers (271); compressed air is injected from the compressor air storage tank (3) into said double output shaft low friction air cylinder (25), the air cylinder piston (251) reciprocates by means of air pressure, said left and right pistons (200) are driven to reciprocate, and water in said left and right water pumping chambers (201) is pumped to said water tower (4) through the water pumping pipe (5).
Inventors:
LIAO WENTING (CN)
Application Number:
PCT/CN2008/071427
Publication Date:
December 30, 2009
Filing Date:
June 25, 2008
Export Citation:
Assignee:
LIAO WENTING (CN)
International Classes:
F04B9/133; F03B13/00; F04B23/06
Foreign References:
| CN101054962A | 2007-10-17 | |||
| CN1006925B | 1990-02-21 | |||
| TW321069B | ||||
| CN201144775Y | 2008-11-05 | |||
| US20080310973A1 | 2008-12-18 | |||
| CN101078396A | 2007-11-28 | |||
| CN1109229C | 2003-05-21 | |||
| EP0860558A1 | 1998-08-26 |
Attorney, Agent or Firm:
GUANGZHOU SICHEAD PATENT AGENT., LTD. (Huihua Commercial & Trade BuildingNo. 80, XianLie Zhong Road, Yuexiu Distric, Guangzhou Guangdong 0, CN)
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