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Patent Searching and Data


Title:
BACKFLUSH TYPE FILTER
Document Type and Number:
WIPO Patent Application WO/2013/114329
Kind Code:
A1
Abstract:
The invention relates to a backflush filter for filtering liquids, with the filter having a filter housing (1) with inlet (5) and an outlet (6) an filter elements (7), which are arranged offset with respect to each other on at least one circle, which are open at both ends (8, 9) and which have an outer surface of filter material (14) which is passed through for the filtering. The filter housing (1) has an inlet chamber (4) and an outlet chamber (11) and a cleaning device (30) which is rotatable about the centre axis (M) for backflushing individual filter elements (7), The cleaning device has a first body (32) associated with the first ends (8) and a second body (34) associated with the second ends (9) of the filter elements and movable together with the first body (32). According to the invention, the inlet chamber (4) is associated with the first ends (8) of the filter elements (7) for unidirectional supply of the filter elements (7) with liquid to be filtered in the filtering operation, while the second body (34) of the cleaning device forms a closure member (33) for the second ends (9) of all the filter elements (7) undergoing the filtering operation. Furthermore, the second body comprises for each circle (18) a backflush opening for backflushing individual filter elements (7) in the backflush operation, and the first body (32) forms a partial closure member for the associated first end (8) of the filter element (7) undergoing the back- flushing operation.

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Inventors:
VIETEN WILHELM (DE)
Application Number:
PCT/IB2013/050864
Publication Date:
August 08, 2013
Filing Date:
February 01, 2013
Export Citation:
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Assignee:
BOLL & KIRCH FILTER (DE)
VIETEN WILHELM (DE)
International Classes:
B01D35/147; B01D29/23; B01D29/52; B01D29/66
Foreign References:
DE3141900A11983-05-05
US20020162786A12002-11-07
EP0656223A11995-06-07
KR20100121278A2010-11-17
US20090107904A12009-04-30
Attorney, Agent or Firm:
ALTHAUS, Arndt et al. (Postfach 19 04 08, Köln, DE)
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Claims: