GB2204810A - Air filter - Google Patents

Air filter Download PDF

Info

Publication number
GB2204810A
GB2204810A GB08811839A GB8811839A GB2204810A GB 2204810 A GB2204810 A GB 2204810A GB 08811839 A GB08811839 A GB 08811839A GB 8811839 A GB8811839 A GB 8811839A GB 2204810 A GB2204810 A GB 2204810A
Authority
GB
United Kingdom
Prior art keywords
filter
filter material
layer
layers
fine
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.)
Withdrawn
Application number
GB08811839A
Other versions
GB8811839D0 (en
Inventor
Klaus Peter Hammes
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.)
ICLEEN UMWELTPROD SCHAAN
Original Assignee
ICLEEN UMWELTPROD SCHAAN
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 ICLEEN UMWELTPROD SCHAAN filed Critical ICLEEN UMWELTPROD SCHAAN
Publication of GB8811839D0 publication Critical patent/GB8811839D0/en
Publication of GB2204810A publication Critical patent/GB2204810A/en
Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • 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
    • B01D39/1669—Cellular material
    • B01D39/1676—Cellular material of synthetic origin
    • 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
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Filtering Materials (AREA)

Description

. t 2 211 0 4 S 10 Title:
FILTER FOR FILTERING THE AIR INTRODUCED INTO THE INTERIOR OF A MOTOR VEHICLE.
This invention relates to a filter for filtering the air introduced into the interior of a motor vehicle.
The ventilation of or the supply of fresh air to the interior of motor vehicles is generally effected by means of the ventilating system, the outside air frequentli being drawn in by switching on the blower and being blown into the interior either directly or after flowing through the cooling unit of an air-conditioning unit. In this -case, it is a disadvantage that the fresh air is blown unfiltered, that is to say laden with road dust and harmful substances, through the ventilating nozzles, into the faces of the occupants of the car. This is understandably felt to be disturbing and unpleasant and leads to the fact that the ventilation is switched off, particularly on busy roads, in order to avoid the inconvenience.
The present invention aims to provide a simple and inexpensive filter by means of which the air introduced into the interior of motor vehicles can be filtered.
Accordingly, the present invention provides a filter for filtering the air introduced into the interior of a motor vehicle, the filter comprising air-permeable foamed filter material.
The filter material may appropriately consist of resilient foamed material and the filter desirably takes the form of a block consisting of at least one layer of filter material. A plurality of layers of filter material may be provided and a cloth-like fine-mesh filter may be inserted between adjacent layers of filter material.
In this case, it is preferable for the adjacent surfaces of the layers of filter material to be corrugated in zig-zag form. This provides a non-slip connection between the layers of filter material, in a simple manner, and in addition produces a much larger effective area of the cloth-like fine-mesh filter situated in between.
The filter material may be coarse-pored or fine-pored or may consist of at least one layer of coarse-pored filter material and of at least one- layer of fine-pored filter material. In this case, the various layer elements may have different colours for the easy recognition of the pore size of a filter-material element. In addition, the filter may be provided, for example sprinkled, with activated carbon.
It is optimum from the filtering point of view for the filter to consist exclusively of air-permeable components, so as not to cause any rattling noises and in addition even to have a sound-damping effect. The filter block can be introduced easily and be taken out again for cleaning or replacement. It is also a particular advantage that the filter block can be cut to size according to the different sizes of the air-intake housing of the motor vehicle. Finally, the filter can be adapted in a simple manner, individually, to different driving performances and environmental conditions, in that only one or more layers of f ilter material can be used. The fine-mesh filter may also be omitted.
The invention will now be further described, by way of example, with reference to the drawings, in which:- Figure 1 is a perspective view of one embodiment of a filter according to the invention having two layers of foamed filter material and one fine-mesh filter situated in between; and Figure 2 is a perspective view of a second embodiment of a filter according to the invention having three layers of foamed filter material with two fine-mesh filters situated in between each of them.
In the drawings, like parts are denoted by like referenci numerals.
Referring first to Fig.1 of the drawings, the filter comprises layers 1 and 2 of filter material each having a plane outer surface and a corrugated inner surface 6. The surfaces 6 are corrugated in zig-zag form and lie against one another with a cloth-like fine-mesh filter 4 inserted in between. The layers 1 and 2 of filter material are identical in their external shape and fit seamlessly into one another if one turned through 1800 in relation to the other.
layer is In the second embodiment shown in Fig.2 of the drawings, a third layer 3 of filter material additionally lies between the two layers 1 and 2 of filter material. This third layer is corrugated in zig-zag form at both sides 20 in order to fit between the surfaces 6 of the layers 1 and 2 of filter material. Two fine-mesh filters 4 and 5 are inserted respectively between the corrugated surface 6 of the layer 1 and the corrugated surface 6 of the layer 2.
The air intake is effected in the direction of the arrow a in both examples.
The layers 1, 2, 3 of filter material may be selected so that the air first flows through a coarse-pored layer and finally leaves the filter again from a f ine-pored 30 layer.
J The angles of the zig-zag-shaped corrugations on the surfaces 6 of the layers 1, 2, 3 of filter material may be of different steepness. The effective filter area of the fine-mesh filter 4 or 4 and 5 folded into the surface corrugations 6 varies accordingly.
As a result of the resilient construction of the filter and also of the possibility of being able to dress the filter appropriately, the majority of motor vehicles can be equipped easily and inexpensively with an air 10 filter, even after manufacture of the vehicle.
The foamed material of the layers 1, 2 and 3 may consist of any suitable filter material although polypropylene is preferred.
1 W

Claims (11)

1. A filter for filtering the air introduced into the interior of a motor vehicle, the filter comprising airpermeable foamed filter material.
2. A filter according to claim 1, wherein the filter material consists of resilient foamed material.
3. A filter according to claim 1 or claim 2, wherein the filter comprises a block consisting of at least one layer of filter material.
4. A filter according to claim 3, wherein the filter comprises a plurality of layers of filter material and wherein a cloth-like fine-mesh filter is inserted between adjacent layers of filter material.
5. A filter according to claim 4, wherein the facing surfaces of said layers of filter material are corrugated in zig-zag form.
6. A filter according to any preceding claim, wherein said filter is provided with activated carbon.
7. A filter according to claim 6, wherein the activated carbon is sprinkled on the filter.
8. A filter according to any preceding claim, wherein the filter material is coarse-pored or fine-pored orconsists of at least one layer of coarsepored filter material and of at least one layer of fine-pored filter material.
9 1 t 9. A filter according to claim 8, wherein the various layers of filter material have different colours for the easy recognition of the pore size of each layer of filter material.
10. A filter according to any preceding claim, wherein the filter material consists of polypropylene.
11. A filter substantially as described herein with reference to Fig. 1 or Fig.2 of the drawings.
Published 1988 at The Patent Office, State House, 66'71 High Holborn, London WClR 4TP. Further copies may be obtained from The Patent Office, Sales Branch, St Mary Cray, Orpington, Kent BR5 3RD. Printed by Multiplex techniques ltd, St Mary Cray, Kent. Con. 1/87.
GB08811839A 1987-05-21 1988-05-19 Air filter Withdrawn GB2204810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH196987A CH672460A5 (en) 1987-05-21 1987-05-21

Publications (2)

Publication Number Publication Date
GB8811839D0 GB8811839D0 (en) 1988-06-22
GB2204810A true GB2204810A (en) 1988-11-23

Family

ID=4222848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08811839A Withdrawn GB2204810A (en) 1987-05-21 1988-05-19 Air filter

Country Status (3)

Country Link
CH (1) CH672460A5 (en)
DE (1) DE3815907A1 (en)
GB (1) GB2204810A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989320A (en) * 1997-05-05 1999-11-23 Rutkowski; Timothy C. Frameless electrostatic air filter with internal support grill
US6692551B2 (en) 2002-07-17 2004-02-17 Delphi Technologies, Inc. Air cleaner assembly and process
US6692554B1 (en) * 2002-12-10 2004-02-17 Visteon Global Technologies, Inc. Methane storage device
US6752859B2 (en) 2002-10-02 2004-06-22 Delphi Technologies, Inc. Air cleaner assembly for reducing pollutants from being discharged into the atmosphere

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5501794A (en) * 1991-12-31 1996-03-26 Minnesota Mining And Manufacturing Company Wave filter with flexible tensioning members
US5639287A (en) * 1994-05-16 1997-06-17 Minnesota Mining And Manufacturing Company Filter system for filtering fluids
FR2772670B1 (en) 1997-12-22 2000-02-04 Valeo FILTRATION DEVICE FOR FITTING A VENTILATION AND / OR HEATING AND / OR AIR CONDITIONING APPARATUS, PARTICULARLY FOR A VEHICLE
US6533839B2 (en) * 2001-08-09 2003-03-18 3M Innovative Properties Company Visual differentiation of adsorbent-loaded media

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052191A (en) *
GB1041394A (en) * 1963-09-05 1966-09-07 Martindale Electric Company Lt Filter pads for sanitary masks and sanitary masks incorporating such pads
GB1305711A (en) * 1969-03-18 1973-02-07
GB1559924A (en) * 1976-10-18 1980-01-30 Tenneco Chem Filters
GB2032298A (en) * 1978-10-09 1980-05-08 Takeda Chemical Industries Ltd Adsorbent air filter
GB2071518A (en) * 1980-03-04 1981-09-23 Nat Res Dev Elutriators
EP0162022A2 (en) * 1984-05-15 1985-11-21 ITAL IDEE s.r.l. Multiple filter unit, particularly for ventilation and air conditioning systems for motor vehicles and closed environments, and provided with efficiency checking means
US4695300A (en) * 1981-03-22 1987-09-22 Nippon Soken, Inc. Radial flow type dust collecting filter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052191A (en) *
GB1041394A (en) * 1963-09-05 1966-09-07 Martindale Electric Company Lt Filter pads for sanitary masks and sanitary masks incorporating such pads
GB1305711A (en) * 1969-03-18 1973-02-07
GB1559924A (en) * 1976-10-18 1980-01-30 Tenneco Chem Filters
GB2032298A (en) * 1978-10-09 1980-05-08 Takeda Chemical Industries Ltd Adsorbent air filter
GB2071518A (en) * 1980-03-04 1981-09-23 Nat Res Dev Elutriators
US4695300A (en) * 1981-03-22 1987-09-22 Nippon Soken, Inc. Radial flow type dust collecting filter
EP0162022A2 (en) * 1984-05-15 1985-11-21 ITAL IDEE s.r.l. Multiple filter unit, particularly for ventilation and air conditioning systems for motor vehicles and closed environments, and provided with efficiency checking means

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989320A (en) * 1997-05-05 1999-11-23 Rutkowski; Timothy C. Frameless electrostatic air filter with internal support grill
US6063167A (en) * 1997-05-05 2000-05-16 Rutkowski; Timothy C. Frameless electrostatic air filter with internal support grill
US6692551B2 (en) 2002-07-17 2004-02-17 Delphi Technologies, Inc. Air cleaner assembly and process
US6752859B2 (en) 2002-10-02 2004-06-22 Delphi Technologies, Inc. Air cleaner assembly for reducing pollutants from being discharged into the atmosphere
US6692554B1 (en) * 2002-12-10 2004-02-17 Visteon Global Technologies, Inc. Methane storage device

Also Published As

Publication number Publication date
GB8811839D0 (en) 1988-06-22
CH672460A5 (en) 1989-11-30
DE3815907A1 (en) 1988-12-08

Similar Documents

Publication Publication Date Title
US4711159A (en) Built-in vehicle air filtration system
JP2847714B2 (en) Ventilation filter
US4722747A (en) Add-on vehicle air filtration system
US5004487A (en) Filter assembly for protecting motor vehicle occupants from pollution
US5192346A (en) Air purifier pleated filter to stop pollution for passenger inside of the motor vehicle
US3722182A (en) Air purifying and deodorizing device for automobiles
KR20190034534A (en) Composite air filter and its method
CA2114174A1 (en) Passenger vehicle with a filtered air intake
US5810896A (en) Air filtration and purification system for vehicle
CA2232137C (en) Filter element
GB2204810A (en) Air filter
US20090209190A1 (en) Filter for air intake of an automobile
FR2838380B1 (en) PURIFYING THE AIR OF THE CABIN OF A VEHICLE BY ABSORPTION AND PHOTOCATALYSIS
EP0608034B1 (en) Filter device
EP0591673A1 (en) Filter for ventilation ducts of motor vehicle passenger compartments
JPH10113521A (en) Automotive cabin filter
JP2998332B2 (en) Cooling unit for ceiling-mounted vehicles
KR20200007648A (en) Filter arrangement for a vehicle integrated in a interior component
JP3211376B2 (en) Automotive air purifier
JPH01172022A (en) Structure of outside air intake port of automobile provided with filter
JPH05115734A (en) Air filter
JPS5815211Y2 (en) car air purifier
CN2179835Y (en) Air purifier at air inlet of automobile air conditioner
KR19980046748U (en) Car blower filter
JP3874674B2 (en) Air purifier filter mounting structure

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)