WO1999032311A1 - Dispositif de filtration destine a equiper un appareil d'aeration et/ou de chauffage et/ou de climatisation, plus particulierement pour un vehicule - Google Patents
Dispositif de filtration destine a equiper un appareil d'aeration et/ou de chauffage et/ou de climatisation, plus particulierement pour un vehicule Download PDFInfo
- Publication number
- WO1999032311A1 WO1999032311A1 PCT/FR1998/002816 FR9802816W WO9932311A1 WO 1999032311 A1 WO1999032311 A1 WO 1999032311A1 FR 9802816 W FR9802816 W FR 9802816W WO 9932311 A1 WO9932311 A1 WO 9932311A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filtration device
- grid
- frame
- carbon fabric
- card web
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0415—Beds in cartridges
-
- 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
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H3/0658—Filter elements specially adapted for their arrangement in vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/304—Linear dimensions, e.g. particle shape, diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H2003/0691—Adsorption filters, e.g. activated carbon
Definitions
- Filtration device intended to equip a ventilation and / or heating and / or air conditioning device, more particularly for a vehicle.
- the present invention relates to a filtration device intended to equip an aeration and / or heating and / or air conditioning device, more particularly for a vehicle.
- a first object of the invention is to improve the efficiency and the lifespan of such a filtration device. Another object of the invention is to make it easier to change the filtration device when it is dirty.
- Yet another object of the invention is to make such a filtration device more easily recyclable, in particular when the latter comprises means for adsorption of deleterious gases.
- the filtration device comprises a flexible grid surrounded by a relatively flexible frame
- said non-woven mat consisting of a card web is applied against said grid without being secured to it;
- the filtration device includes gas adsorption means placed between the grid and said nonwoven mat;
- said adsorption means comprise an activated carbon fabric; • said carbon fabric is flexible;
- said adsorption means comprise a bed of activated charcoal
- said grid is made of polypropylene
- said second grid is made of polypropylene
- said nonwoven mat is based on long fibers, the length of which is preferably at least 38 mm;
- said long fibers have an average diameter equal to or greater than 10 ⁇ m;
- said fibers are polypropylene fibers
- said frame is made of polypropylene foam or cellular polypropylene; • said frame is secured to the grid by mirror welding;
- said frame is secured to the grid as well as to said second grid by mirror welding; • said frame is molded on said grid;
- said frame is molded on said grid and on said nonwoven mat
- the filtration device according to the invention has better efficiency and opposes a lower pressure drop to the air to be filtered than the filters of the prior art.
- the filtration device according to the invention is advantageously in the form of a flexible cassette capable of being temporarily deformed in all directions during its insertion, or removal, in an aeration device and / or heating and / or air conditioning, which considerably facilitates the corresponding operations, in particular when accessibility to the housing of the filtration device is not, as is in most cases, not easy. Thanks to the constitution of the filtration device according to the invention, the assembly of the different parts of it can be carried out without the use of solvent or glue while obtaining an excellent seal between the frame and the different active parts of the filter. .
- the flexibility of the frame advantageously allows a tight mounting at the periphery thereof without the need to have a seal.
- the flexibility of the frame helps to prevent and absorb vibrations and noises at the level of the filter as well as in the duct where it is placed.
- FIG. 1 a schematic representation of the manufacture of the filtration device according to the invention.
- the filtration device 1 of FIG. 1 comprises a flexible pleated grid 2 against which is disposed, without being joined thereto, a filtering medium 3 forming a particle filter, formed of a nonwoven mat consisting of a card web a unique tablecloth.
- the filter medium 3 is itself pleated in the same way as the grid 2.
- Said nonwoven mat is based on long fibers, the length of which is preferably at least 38 mm.
- Said long fibers have an average diameter equal to or greater than 10 ⁇ m.
- Said fibers are made of thermoplastic material and, in practice, polypropylene.
- Grid 2 is made of polypropylene. It is placed downstream from the direction F of air circulation in the filtration device.
- a second pleated flexible grid 5 is provided so that the filtering medium 3 is placed between the grids 2 and 5 without being secured to either of the two grids 2 and 5.
- the second so-called inlet grid is placed upstream of the media 3 in the direction F of air circulation in the filtration device.
- the second grid 5 is of the same nature as the grid 2 and is made of polypropylene.
- the two grids 2 and 5 are of different natures.
- the filtration device of FIG. 1 constitutes a particle filter.
- the invention also relates to a so-called combined filter, that is to say both a particle filter and a filter stopping harmful gases.
- gas adsorption means 4 placed between the grid 2 and the media are added.
- the medium 3 so as to have the following succession, in the direction F of air circulation: the medium 3, the gas adsorption means
- FIG. 2 shows a combined filter successively comprising in the direction F of air circulation: an inlet grid 5, a medium 6, gas adsorption means 4, a medium 3 and an outlet grid 2.
- the media 3 and 6 are advantageously of the same nature, as that described above. In this way, two nonwoven mats 3 and 6 each consisting of a card web are disposed respectively on either side of the gas adsorption means 4.
- Said gas adsorption means 4 may comprise a bed of activated carbon, but preferably, as shown in FIG. 2, they comprise a flexible carbon fabric pleated in the same way as the grid 2 or 5 and the media 3 or 6.
- the filtration device of FIG. 2 has a symmetrical construction which advantageously allows it to be mounted either in one direction or the other in a heating and / or ventilation and / or air conditioning device, which makes it unnecessary to provide, in this case, a key for the direction of assembly.
- the filtration device is thus reversible.
- the inlet gate can play the role of outlet gate and, conversely, the outlet gate play the role of inlet gate.
- a flexible frame is provided to support the various components of the filtration device. Such a flexible frame is shown at 7 in FIG. 3.
- FIG. 3 corresponds to the embodiment of FIG. 2, the provisions relating to the frame which will be described below also apply to other embodiments and in particular to that described with reference to FIG. 1.
- the frame 7 is made of polypropylene foam or, alternatively, of cellular polypropylene, and is secured to the outlet grid 2 or to the inlet grid 5, and preferably to the two grids 2 and 5 when both are planned.
- the attachment of a grid 2 or 5 to the frame 7 is advantageously carried out, as symbolized in FIGS. 4 and 5, by a so-called mirror welding operation which consists in simultaneously heating until a start of fusion a peripheral part 8 of the grid 2 or 5 on the one hand, and a portion 9 of the frame 7 corresponding to the fixing zone on the other hand, then to bring together and tighten one against the other the peripheral portion 8 and the portion 9 above so as to exert a relative pressure symbolized by the arrows P in Figure 5.
- the mirror welding operation is carried out in such a way that the lateral end 8 of the grid 2 or 5 is caused to bend at a right angle to match the corresponding internal face of the frame 7, which has the advantages of ensuring a better fixing of the grille and avoid any air leakage between grille and frame.
- peripheral parts 8 and corresponding portions 9, and preferably all four, of the grid 2 or 5 and of the frame 7 are thus fixed together.
- the two grids 2 and 5 are fixed to the frame 7 in the manner which has just been described.
- the nonwoven mat (s) are affixed against the corresponding grid (s) 2 and / or 5 with, if necessary, interposition, as described above, of adsorption means 4 such as preferably carbon fabric.
- the frame is molded around the grid 2 or 5 or of the two grids 2 and 5 as well as on the filtering media or media 3 and / or 6.
- the adsorption means 4 preferably in the form of an activated carbon fabric, have on at least one side, and advantageously on the four sides, an extent smaller than that of the grid 2 and / or 5 as well as, preferably, of the filtering medium 3 and / or 6.
- the adsorption means are separated from the frame 7. This has the advantage that the presence of the adsorption means does not disturb the attachment of the grids to the frame and that when recovering a used filter, it is easily possible by sectioning the grid or grids to recover the adsorption means, which constitute an important element in the cost price of a filter, in order to regenerate them with a view to their reuse in a new filter.
- Figures 7 and 8 illustrate a preferred method of manufacturing a filtration device described above.
- the fiber mixture obtained is then introduced into a demotor 10 and then into a storage silo 11 before being carded by means of a wool-type carding machine 12 with a double comber equipped with a jumble type of pell-mell in order to obtain an isotropic carding veil.
- the veil is, at the end of the card, introduced into a condenser 13 to form a sheet.
- the parameters of the card and the condenser are chosen so as to obtain a sheet having a surface mass of approximately 20 to approximately 150 g / m 2 .
- the sheet is placed on a mat and then consolidated by a hydraulic bonding operation at 14.
- the hydraulic tying operation consists in passing through the tablecloth arranged on a rotary drum by very fine jets of water under high pressure (40 to 200 bars).
- the sheet After passing through a drying tunnel 15, the sheet is wound at 16. The sheet is then taken up to undergo a pleating operation at 18 and is then ready to be mounted on a support to form the filtration device as indicated above.
- the filtration device comprises a sheet in a single layer.
- the particles correspond to a powder called "powder
- SAE fine which is defined by the standard of the United States of America, reference SAE J 726 / ISO 5011.
- the particle concentration is 100 mg / m 3 .
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69811862T DE69811862T2 (de) | 1997-12-22 | 1998-12-22 | Filtereinrichtung für belüftungs-, heizungs- und/oder klimaanlagen, insbesondere für kraftfahrzeuge |
EP98962538A EP0961702B1 (fr) | 1997-12-22 | 1998-12-22 | Dispositif de filtration destine a equiper un appareil d'aeration et/ou de chauffage et/ou de climatisation, plus particulierement pour un vehicule |
JP53342699A JP2001512397A (ja) | 1997-12-22 | 1998-12-22 | フィルタ装置 |
US09/367,881 US6228152B1 (en) | 1997-12-22 | 1998-12-22 | Filtering device for equipping a ventilation and/or heating and/or air conditioning unit, more particularly for a motor vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR97/16262 | 1997-12-22 | ||
FR9716262A FR2772670B1 (fr) | 1997-12-22 | 1997-12-22 | Dispositif de filtration destine a equiper un appareil d'aeration et/ou de chauffage et/ou de climatisation, plus particulierement pour un vehicule |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999032311A1 true WO1999032311A1 (fr) | 1999-07-01 |
Family
ID=9514924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/002816 WO1999032311A1 (fr) | 1997-12-22 | 1998-12-22 | Dispositif de filtration destine a equiper un appareil d'aeration et/ou de chauffage et/ou de climatisation, plus particulierement pour un vehicule |
Country Status (7)
Country | Link |
---|---|
US (1) | US6228152B1 (fr) |
EP (1) | EP0961702B1 (fr) |
JP (1) | JP2001512397A (fr) |
DE (1) | DE69811862T2 (fr) |
ES (1) | ES2193596T3 (fr) |
FR (1) | FR2772670B1 (fr) |
WO (1) | WO1999032311A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001293318A (ja) * | 2000-03-15 | 2001-10-23 | Valeo | 自動車の空調用濾過装置 |
DE10111318B4 (de) | 2000-03-15 | 2018-03-22 | Valeo | Filtervorrichtung zur Ausrüstung einer Belüftungs- und/oder Heizungs- und/oder Klimanlage, insbesondere für Kraftfahrzeuge |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2806320B1 (fr) * | 2000-03-15 | 2003-02-07 | Valeo | Dispositif de filtration destine a equiper un appareil d'aeration et/ou de chauffage et/ou de climatisation, en particulier pour vehicule automobile |
FR2815296B1 (fr) * | 2000-10-18 | 2003-07-04 | Valeo | Dispositif de filtration destine a equiper un appareil d'aeration et/ou de chauffage et/ou de climatisation, notamment pour vehicule automobile, et adapte a reduire la vitesse de propagation d'une flamme |
EP1247558A1 (fr) * | 2001-04-07 | 2002-10-09 | 3M Innovative Properties Company | Filtre combiné pour filtrer des fluides |
KR20020088608A (ko) * | 2001-05-18 | 2002-11-29 | 최동식 | 환기장치의 활성탄 정화필터 |
JP2003001028A (ja) * | 2001-06-22 | 2003-01-07 | Bridgestone Corp | フィルター材 |
FR2833859B1 (fr) * | 2001-12-21 | 2004-02-20 | Valeo Materiaux De Friction Sa | Dispositif de filtration d'air perfectionne et installation de circulation d'air dans un vehicule automobile comprenant ce dispositif |
FR2833858B1 (fr) * | 2001-12-21 | 2004-02-20 | Valeo | Dispositif de filtration d'air perfectionne et installation de circulation d'air dans un vehicule automobile comprenant ce dispositif |
US6565627B1 (en) * | 2002-03-08 | 2003-05-20 | Air Products And Chemicals, Inc. | Self-supported structured adsorbent for gas separation |
US6860916B2 (en) * | 2002-06-14 | 2005-03-01 | 3M Innovative Properties Company | Filter assembly |
US7077891B2 (en) * | 2002-08-13 | 2006-07-18 | Air Products And Chemicals, Inc. | Adsorbent sheet material for parallel passage contactors |
FR2849787B1 (fr) * | 2003-01-15 | 2005-05-06 | Valeo Materiaux Friction | Procede de fabrication d'un dispositif de filtration d'air, dispositif de filtration d'air, dispositif pour la mise en oeuvre du procede et installation de circulation d'air dans un vehicule automobile |
US20040163372A1 (en) * | 2003-02-25 | 2004-08-26 | Nguyen Ledu Q. | Environmentally friendly air filter for an internal combustion engine |
FR2852861B1 (fr) * | 2003-03-27 | 2005-12-02 | Valeo Materiaux Friction | Dispositif de filtration d'air, installation de circulation d'air et dispositif de decoupage d'un media filtrant |
ES2593909T3 (es) * | 2003-03-27 | 2016-12-14 | Valeo Matériaux De Friction | Procedimiento de fabricación de un dispositivo de filtración de aire, dispositivo de filtración de aire e instalación de circulación de aire dentro de un vehículo automóvil |
US6905536B2 (en) * | 2003-06-11 | 2005-06-14 | Arvin Technologies, Inc. | Increased surface area hydrocarbon adsorber |
US7070641B1 (en) * | 2003-12-03 | 2006-07-04 | Fleetguard, Inc. | Carbon media filter element |
US7169202B2 (en) * | 2003-12-24 | 2007-01-30 | 3M Innovative Properties Company | Filter assembly |
US7419526B2 (en) * | 2005-03-03 | 2008-09-02 | 3M Innovative Properties Company | Conformal filter cartridges and methods |
WO2007090011A2 (fr) * | 2006-01-30 | 2007-08-09 | Aerospace Filtration Systems, Inc. | Systeme de filtre barriere d'entree d'air moteur pour aeronef |
FR2898512B1 (fr) * | 2006-03-17 | 2008-05-16 | Valeo Materiaux De Friction Sa | Ensemble de baguettes pour cadre de support d'un media de filtration |
JP4944540B2 (ja) * | 2006-08-17 | 2012-06-06 | 日本バイリーン株式会社 | フィルタエレメント、その製造方法、並びに使用方法 |
US7942947B2 (en) * | 2006-09-26 | 2011-05-17 | Aisan Kogyo Kabushiki Kaisha | Dust filter |
DE202006018865U1 (de) * | 2006-12-12 | 2008-05-15 | Mann+Hummel Gmbh | Mehrschichtiges Filterelement |
DE102007050733B4 (de) * | 2006-12-12 | 2020-03-05 | Mann+Hummel Gmbh | Mehrschichtiges Filterelement und dessen Verwendung |
DE202006018863U1 (de) * | 2006-12-12 | 2008-04-17 | Mann+Hummel Gmbh | Filterelement mit Aktivkohlebeschichtung |
DE102006059783B4 (de) * | 2006-12-15 | 2008-11-06 | Rös, Helmut | Geruchsperrenanordnung mit einem Filtermodul |
FR2912710A1 (fr) * | 2007-02-15 | 2008-08-22 | Renault Sas | Dispositif de grille exterieure de vehicule automobile |
US20090126326A1 (en) * | 2007-11-20 | 2009-05-21 | Mcclellan John P | Ventilation system air filter and method for manufacturing the same |
CA2747632A1 (fr) | 2008-12-18 | 2010-07-15 | 3M Innovative Properties Company | Element filtrant utilisant une toile non tissee contenant des particules profilees |
US9067158B2 (en) | 2010-01-19 | 2015-06-30 | Camfil Ab | Filter unit |
ES2889274T3 (es) * | 2012-07-11 | 2022-01-11 | Mann & Hummel Gmbh | Filtro de aire para el aire interior de cabinas de vehículos, máquinas agrícolas, de construcción y de trabajo |
CN104623989A (zh) * | 2013-11-13 | 2015-05-20 | 法雷奥汽车空调湖北有限公司 | 汽车空调用过滤器件 |
DE102014014006B4 (de) * | 2014-09-25 | 2018-05-09 | Mann + Hummel Gmbh | Filterelement und Filtersystem mit durchströmbarem Akustikelement sowie dessen Verwendung |
US11819792B2 (en) | 2014-11-14 | 2023-11-21 | Columbus Industries, Inc. | Bidirectional airflow filter |
DE102022109239A1 (de) | 2022-04-14 | 2023-10-19 | Mann+Hummel Gmbh | Formstabiles Filterelement, Filterkartusche und Bremsstaubpartikelfilter sowie Verfahren und Werkzeug zur Herstellung des Filterelements |
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WO1998017368A1 (fr) * | 1996-10-18 | 1998-04-30 | Chapman Rick L | Filtre a air permanent extremement efficace |
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1997
- 1997-12-22 FR FR9716262A patent/FR2772670B1/fr not_active Expired - Fee Related
-
1998
- 1998-12-22 ES ES98962538T patent/ES2193596T3/es not_active Expired - Lifetime
- 1998-12-22 JP JP53342699A patent/JP2001512397A/ja not_active Ceased
- 1998-12-22 DE DE69811862T patent/DE69811862T2/de not_active Expired - Lifetime
- 1998-12-22 EP EP98962538A patent/EP0961702B1/fr not_active Expired - Lifetime
- 1998-12-22 WO PCT/FR1998/002816 patent/WO1999032311A1/fr active IP Right Grant
- 1998-12-22 US US09/367,881 patent/US6228152B1/en not_active Expired - Fee Related
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US4731135A (en) * | 1980-11-12 | 1988-03-15 | Toyo Boseki Kabushiki Kaisha | Process for making a filter having a continuous density gradient |
DE3815907A1 (de) * | 1987-05-21 | 1988-12-08 | Icleen Entwicklung Vertrieb | Filter zur filterung der in den innenraum eines kraftfahrzeuges eingefuehrten luft |
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DE4039288A1 (de) * | 1990-12-08 | 1992-06-11 | Knecht Filterwerke Gmbh | Filtereinsatz fuer insbesondere gasfilter |
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US5509950A (en) * | 1992-07-11 | 1996-04-23 | Minnesota Mining And Manufacturing Company | Filter device for the filtration of gases and/or fluids |
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US5679122A (en) * | 1993-08-14 | 1997-10-21 | Minnesota Mining & Manufacturing Company | Filter for the filtration of a fluid flow |
WO1998017368A1 (fr) * | 1996-10-18 | 1998-04-30 | Chapman Rick L | Filtre a air permanent extremement efficace |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001293318A (ja) * | 2000-03-15 | 2001-10-23 | Valeo | 自動車の空調用濾過装置 |
JP4621305B2 (ja) * | 2000-03-15 | 2011-01-26 | ヴァレオ | 自動車の空調用濾過装置 |
DE10111318B4 (de) | 2000-03-15 | 2018-03-22 | Valeo | Filtervorrichtung zur Ausrüstung einer Belüftungs- und/oder Heizungs- und/oder Klimanlage, insbesondere für Kraftfahrzeuge |
Also Published As
Publication number | Publication date |
---|---|
ES2193596T3 (es) | 2003-11-01 |
FR2772670A1 (fr) | 1999-06-25 |
FR2772670B1 (fr) | 2000-02-04 |
DE69811862T2 (de) | 2003-09-04 |
US6228152B1 (en) | 2001-05-08 |
DE69811862D1 (de) | 2003-04-10 |
EP0961702B1 (fr) | 2003-03-05 |
JP2001512397A (ja) | 2001-08-21 |
EP0961702A1 (fr) | 1999-12-08 |
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