| 摘要 |
PCT No. PCT/SE94/00369 Sec. 371 Date Oct. 25, 1995 Sec. 102(e) Date Oct. 25, 1995 PCT Filed Apr. 26, 1994 PCT Pub. No. WO94/25139 PCT Pub. Date Nov. 10, 1994A liquid filter comprises a filter rotor with filtering elements and a container for the filtrate. The filtrate is divided in two fractions, a coarse pre-filtrate derived from that side, where the rotor dives into the liquid, and a clear filtrate derived from the opposite side. The pre-filtrate fraction is extracted from the filtrate space such that the filtrate at the side of the container is forced to pass through a number of openings lying close to the liquid surface of the filtrate and leading to a pre-filtrate outlet, whose openings are spaced apart relative to each other and distributed along the rotor.
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