FUEL FILTER, IN PARTICULAR FOR MOTOR VEHICLES

WIPO Patent Application WO2006072545

A3

The invention relates to a fuel filter (10) comprising a filter element (12) which is used to filter particles and water from fuel flowing through the fuel filter (10), and a dehydrator (14) for draining the filtered water from the fuel filter (10). The invention is characterised in that the dehydrator (14) is embodied as an independent component which can be separated, as desired, from the filter element (12). Also, a semi-permeable membrane (78), which is permeable to water and which lies is in a flat manner on the carrier (76), is provided. Alternatively or additionally, the dehydrator (14) comprises a porous element (76) which is used to evaporate the separated water. In another embodiment, said fuel filter comprises a dehydrator (14) which is provided with two water-permeable, semi-permeable and hydrophilic membranes (78).Finally, a filter element (12), which is essentially hollow and cylindrical, is provided and the dehydrator (14) is arranged at least sectionally in the inside of the hollow cylinder.

BRIELMANN VOLKER (ES)
BLASCO REMACHA CARLOS J (ES)
GRANDA MIGUEL (ES)
GAENSWEIN MATTHIAS (DE)
GOMES GAMA VASCO (ES)

PCT/EP2005/056905

September 14, 2006

December 19, 2005

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BOSCH GMBH ROBERT (DE)
BRIELMANN VOLKER (ES)
BLASCO REMACHA CARLOS J (ES)
GRANDA MIGUEL (ES)
GAENSWEIN MATTHIAS (DE)
GOMES GAMA VASCO (ES)

B01D36/00; F02M37/24; F02M37/34

US5645718A	1997-07-08
US5904844A	1999-05-18
US5817234A	1998-10-06
DE10138695A1	2003-02-20

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