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Title:
HOLLOW TUBULAR FILTER AND MANUFACTURING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2016/068250
Kind Code:
A1
Abstract:
　Provided is a hollow tubular filter with which it is possible to efficiently eliminate foreign matter, by forming complex flow paths that include the axial direction and the radial direction within the filter. This hollow tubular filter 10 is formed by winding metal wire materials 20 into a helical and multilayered configuration. The metal wire materials have recessed portions that are formed across the entire length thereof in the lengthwise direction, or that repeat in the lengthwise direction, and the wire materials that constitute each of the wire material layers extend in directions inclined with respect to the axial direction of the hollow tubular filter. By extending the metal wire materials constituting adjacent wire material layers in mutually intersecting directions, a plurality of communicating paths communicating in the direction of overlap of the wire material layers are formed, and spaces for communication among the plurality of communicating paths are formed between the recessed portions of the metal wire materials that constitute one of the wire material layers, and the metal wire materials that constitute the other wire material layers adjacent to the one wire material layer.

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Inventors:
MATSUMOTO TAKASHI (JP)
YOSHIDA YUTAKA (JP)
KIKUCHI KIYOHISA (JP)
Application Number:
PCT/JP2015/080589
Publication Date:
May 06, 2016
Filing Date:
October 29, 2015
Export Citation:
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Assignee:
FUJI FILTER MFG CO LTD (JP)
International Classes:
B01D39/12; B21B1/16; B21C37/04; B21F27/18
Domestic Patent References:
WO2008143606A12008-11-27
Foreign References:
JP2002301317A2002-10-15
JP2001171472A2001-06-26
JP2005212606A2005-08-11
JP2007137105A2007-06-07
JPH07136729A1995-05-30
JP2009533221A2009-09-17
JP2014221522A2014-10-30
JP2009190656A2009-08-27
JP2002301317A2002-10-15
JP2001171472A2001-06-26
JP2009190656A2009-08-27
JP2002301317A2002-10-15
JPH05154503A1993-06-22
JPH07164006A1995-06-27
JP2013126690A2013-06-27
JP2007302237A2007-11-22
Other References:
See also references of EP 3213805A4
Attorney, Agent or Firm:
SUZUKI HITOSHI (JP)
Hitoshi Suzuki (JP)
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