IT1303067B1 - Filtro per fluidi con zone di filtrazione differenziate - Google Patents

Filtro per fluidi con zone di filtrazione differenziate

Info

Publication number
IT1303067B1
IT1303067B1 IT1998MI000987A ITMI980987A IT1303067B1 IT 1303067 B1 IT1303067 B1 IT 1303067B1 IT 1998MI000987 A IT1998MI000987 A IT 1998MI000987A IT MI980987 A ITMI980987 A IT MI980987A IT 1303067 B1 IT1303067 B1 IT 1303067B1
Authority
IT
Italy
Prior art keywords
fluids
filter
filtration areas
differentiated
differentiated filtration
Prior art date
Application number
IT1998MI000987A
Other languages
English (en)
Inventor
Alberto Fracassi
Paolo Baracchi
Claudio Crovetti
David Gerola
Original Assignee
Sogefi S P A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sogefi S P A filed Critical Sogefi S P A
Priority to IT1998MI000987A priority Critical patent/IT1303067B1/it
Priority to EP99107405A priority patent/EP0955078A1/en
Publication of ITMI980987A1 publication Critical patent/ITMI980987A1/it
Application granted granted Critical
Publication of IT1303067B1 publication Critical patent/IT1303067B1/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/04—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
    • B01D27/06—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/08—Construction of the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/14—Cartridge filters of the throw-away type having more than one filtering element
    • B01D27/146—Cartridge filters of the throw-away type having more than one filtering element connected in series
    • B01D27/148—Cartridge filters of the throw-away type having more than one filtering element connected in series arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
    • B01D29/07—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported with corrugated, folded or wound filtering sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/10—Filter screens essentially made of metal
    • B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2003—Glass or glassy material
    • B01D39/2017—Glass or glassy material the material being filamentary or fibrous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/18—Filters characterised by the openings or pores
    • B01D2201/188—Multiple filtering elements having filtering areas of different size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/10—Multiple layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/30—Porosity of filtering material
    • B01D2275/305—Porosity decreasing in flow direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/50—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for air conditioning

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Water Treatment By Sorption (AREA)
  • Filtering Materials (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
IT1998MI000987A 1998-05-06 1998-05-06 Filtro per fluidi con zone di filtrazione differenziate IT1303067B1 (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT1998MI000987A IT1303067B1 (it) 1998-05-06 1998-05-06 Filtro per fluidi con zone di filtrazione differenziate
EP99107405A EP0955078A1 (en) 1998-05-06 1999-04-26 Filter for fluids having differentiated filtration regions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1998MI000987A IT1303067B1 (it) 1998-05-06 1998-05-06 Filtro per fluidi con zone di filtrazione differenziate

Publications (2)

Publication Number Publication Date
ITMI980987A1 ITMI980987A1 (it) 1999-11-06
IT1303067B1 true IT1303067B1 (it) 2000-10-23

Family

ID=11379969

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1998MI000987A IT1303067B1 (it) 1998-05-06 1998-05-06 Filtro per fluidi con zone di filtrazione differenziate

Country Status (2)

Country Link
EP (1) EP0955078A1 (it)
IT (1) IT1303067B1 (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20010177A1 (it) * 2001-01-31 2002-07-31 Sogefi S P A Massa filtrante per fluidi con disposizione a strati
JP2002282626A (ja) * 2001-03-29 2002-10-02 Kyosan Denki Co Ltd 液体用濾過体
US7438812B2 (en) 2001-04-10 2008-10-21 Parker-Hannifin Corporation Filter element and method of making
US8776621B2 (en) * 2009-03-06 2014-07-15 Dionex Corporation Fluid sample delivery system and method
DE102009041401A1 (de) * 2009-09-12 2011-03-24 Hydac Filtertechnik Gmbh Filterelement mit einem Filtermedium sowie Verfahren zum Herstellen desselben
IN2014MU00659A (it) 2014-02-25 2015-09-25 Mann & Hummel Gmbh
US10653979B2 (en) * 2014-04-10 2020-05-19 Donaldson Company, Inc. Pleated fluid filter element and methods
DE102016015248A1 (de) * 2016-12-21 2018-06-21 Johns Manville Europe Gmbh Hocheffizientes Filtermedium
CN108295584A (zh) * 2018-04-17 2018-07-20 东莞市东田过滤技术有限公司 一种免金属材料的滤芯及其滤清器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060677A1 (en) * 1981-03-13 1982-09-22 AMSTED Industries Incorporated Composite filter media
US5275743A (en) * 1991-12-10 1994-01-04 Pall Corporation Filter and filtration method
US5403482A (en) * 1993-10-12 1995-04-04 Gelman Sciences Inc. Self-supporting, pleated, spirally wound filter and the corresponding process of making
IT1287629B1 (it) * 1996-03-06 1998-08-06 Universal Filter Spa Processo per la fabbricazione di un mezzo filtrante, mezzo cosi' fabbricato, e filtri impieganti detto mezzo

Also Published As

Publication number Publication date
ITMI980987A1 (it) 1999-11-06
EP0955078A1 (en) 1999-11-10

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0001 Granted