CA2252522A1 - Fluted filter media - Google Patents

Fluted filter media

Info

Publication number
CA2252522A1
CA2252522A1 CA002252522A CA2252522A CA2252522A1 CA 2252522 A1 CA2252522 A1 CA 2252522A1 CA 002252522 A CA002252522 A CA 002252522A CA 2252522 A CA2252522 A CA 2252522A CA 2252522 A1 CA2252522 A1 CA 2252522A1
Authority
CA
Canada
Prior art keywords
flutes
upstream
filter
filter media
edge
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002252522A
Other languages
French (fr)
Other versions
CA2252522C (en
Inventor
Wayne M. Wagner
Gary R. Gillingham
Joseph C. Tokar
Daniel T. Risch
Jim C. Rothman
Fred H. Wahlquist
Bernard A. Matthys
Stephen W. Sabelko
Bryan D. Patten
Gregory L. Reichter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Donaldson Co Inc
Original Assignee
Donaldson Company, Inc.
Wayne M. Wagner
Gary R. Gillingham
Joseph C. Tokar
Daniel T. Risch
Jim C. Rothman
Fred H. Wahlquist
Bernard A. Matthys
Stephen W. Sabelko
Bryan D. Patten
Gregory L. Reichter
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 Donaldson Company, Inc., Wayne M. Wagner, Gary R. Gillingham, Joseph C. Tokar, Daniel T. Risch, Jim C. Rothman, Fred H. Wahlquist, Bernard A. Matthys, Stephen W. Sabelko, Bryan D. Patten, Gregory L. Reichter filed Critical Donaldson Company, Inc.
Priority claimed from PCT/US1997/007050 external-priority patent/WO1997040918A1/en
Publication of CA2252522A1 publication Critical patent/CA2252522A1/en
Application granted granted Critical
Publication of CA2252522C publication Critical patent/CA2252522C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B01D46/525—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material which comprises flutes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/001—Making filtering elements not provided for elsewhere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/22—Cell-type filters
    • B01D25/24—Cell-type roll filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/22—Cell-type filters
    • B01D25/26—Cell-type stack filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/30—Feeding devices ; Discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/30—Feeding devices ; Discharge devices
    • B01D25/305—Feeding devices ; Discharge devices for discharging filtrate
    • 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
    • B01D46/0001—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/44—Special measures allowing the even or uniform distribution of fluid along the length of a conduit

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

Fluted filter media includes filter material (100) having a plurality of flutes formed therein having alternating ends of adjacent flutes closed (120) to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends ( 122) of the flutes larger in cross-section than the closed flutes (120), wherein the up-stream open flutes converge toward the downstream end and the upstream closed end flutes diverge toward the downstream end. A second embodiment includes filter media which is asymmetric formed with dissimilar upstream and downstream flute cross-sections with larger flute openings to the upstream side of the filter. A third embodiment includes filer media with an up-stream edge crushed to improve flow at the upstream edge. A fourth embodiment includes filter media with the upstream sealing material recessed from the upstream edge for reducing effects from blockages at the upstream edge of the filter.
CA002252522A 1996-04-26 1997-04-25 Fluted filter media Expired - Lifetime CA2252522C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US63922096A 1996-04-26 1996-04-26
US08/639,220 1996-04-26
PCT/US1997/007050 WO1997040918A1 (en) 1996-04-26 1997-04-25 Fluted filter media

Publications (2)

Publication Number Publication Date
CA2252522A1 true CA2252522A1 (en) 1997-11-06
CA2252522C CA2252522C (en) 2006-10-10

Family

ID=37114288

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002252522A Expired - Lifetime CA2252522C (en) 1996-04-26 1997-04-25 Fluted filter media

Country Status (1)

Country Link
CA (1) CA2252522C (en)

Also Published As

Publication number Publication date
CA2252522C (en) 2006-10-10

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Legal Events

Date Code Title Description
EEER Examination request