PUMP HAVING AN ADDITIONAL FLUID SUPPLY

WIPO Patent Application WO2004110598

A3

The invention relates to a pump device (10) for treating liquids according to the principle of reverse osmosis, whereby two pumps are connected to a shaft and driven by a common motor, and a first pump delivers liquids into the casing of a second pump. A multi-stage first centrifugal pump (1.1) delivers a liquid with high pressure into a collecting chamber (17). The collecting chamber (17) comprises an inlet opening (18) for an additional supply (14) of highly pressurized liquid, and a second centrifugal pump (6.1), which is designed for high pump capacities (6.1) and low pressure increases is connected to the collecting chamber (17).

MOLLENKOPF GERHARD (DE)
BRUHNS UWE (DE)
KOCHANOWSKI WOLFGANG (DE)
BAUMGARTEN SVEN (DE)
BROSS STEPHAN (DE)
BRECHT BERNHARD (DE)
JAEGER CHRISTOPH (DE)
ELLEGAARD MOGENS (DK)
SCHWARZ GERHARD (DE)

PCT/EP2004/006218

March 31, 2005

June 09, 2004

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KSB AG (DE)
MOLLENKOPF GERHARD (DE)
BRUHNS UWE (DE)
KOCHANOWSKI WOLFGANG (DE)
BAUMGARTEN SVEN (DE)
BROSS STEPHAN (DE)
BRECHT BERNHARD (DE)
JAEGER CHRISTOPH (DE)
ELLEGAARD MOGENS (DK)
SCHWARZ GERHARD (DE)

B01D61/02; B01D61/06; B01D61/10; C02F1/44; F04D1/10; F04D13/12; F04D13/14; (IPC1-7): B01D61/06; B01D61/10; F04D13/14; F04D1/10; C02F1/44

EP1256371A1	2002-11-13
EP0570350A1	1993-11-18
US5567312A	1996-10-22
DE3719292C1	1988-12-29
US5482441A	1996-01-09
FR727653A	1932-06-22

PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05)

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