CA2087773A1 - Material for filters, especially oil, petrol or diesel filters of motor vehicles - Google Patents
Material for filters, especially oil, petrol or diesel filters of motor vehiclesInfo
- Publication number
- CA2087773A1 CA2087773A1 CA 2087773 CA2087773A CA2087773A1 CA 2087773 A1 CA2087773 A1 CA 2087773A1 CA 2087773 CA2087773 CA 2087773 CA 2087773 A CA2087773 A CA 2087773A CA 2087773 A1 CA2087773 A1 CA 2087773A1
- Authority
- CA
- Canada
- Prior art keywords
- metal
- sintered
- filters
- matrix
- material according
- 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.)
- Abandoned
Links
Classifications
-
- 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
- B01D39/2027—Metallic material
- B01D39/2041—Metallic material the material being filamentary or fibrous
- B01D39/2044—Metallic material the material being filamentary or fibrous sintered or bonded by inorganic agents
-
- 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
- B01D39/2027—Metallic material
- B01D39/2031—Metallic material the material being particulate
- B01D39/2034—Metallic material the material being particulate sintered or bonded by inorganic agents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Abstract
A b s t r a c t Material for Filters, especially oil, petrol or diesel filter of motor vehicles As material for filters, especially for oil, petrol or diesel filters of motor vehicles, a sintered metal fleece or mat with a fabric as supporting matrix (1) is used. At least on one side, metallic fibres (2), metal chips or metal powder or a mixture thereof are sintered onto the matrix.
Fig. 2
Fig. 2
Description
2Q~77~
Material for filters, especially oil, petrol or diesel filters of motor vehicles Technical Field The present invention relates to a materlal for filters, especially oil, petrol or diesel filters of motor vehicles, a method for its manufacture and filters manufactured thereafter.
Background of the Invention In particular oil filters that are used in the field of motor vehicles are exchanged with all their oil drawn up by suction and their filtrate. The filtrate consists of abraded metal particles and additives which are simply thrown away with them, resulting in a corresponding pollution of the environment unless measures are taken for sophisticated, and hence expensive, waste disposal. A repeated use of such oil filters is not planned for several reasons, in particular for reasons of lack of shelf life and the lack of the possibility of cleaning the filter.
In general, according to the prior art, such filters consist of a paper fleece or mat, which, because of its low strength and solubility in oil, has only a limited service life. The paper fleece or mat is arranged in a filter cartridge and the oil flows through it.
summary o~ the Invention An ob~ect of the present invention is therefore to create a material for a filter, especially an oil filter of motor vehicles, which possesses a higher strength and which is thereby reusable when needed.
Material for filters, especially oil, petrol or diesel filters of motor vehicles Technical Field The present invention relates to a materlal for filters, especially oil, petrol or diesel filters of motor vehicles, a method for its manufacture and filters manufactured thereafter.
Background of the Invention In particular oil filters that are used in the field of motor vehicles are exchanged with all their oil drawn up by suction and their filtrate. The filtrate consists of abraded metal particles and additives which are simply thrown away with them, resulting in a corresponding pollution of the environment unless measures are taken for sophisticated, and hence expensive, waste disposal. A repeated use of such oil filters is not planned for several reasons, in particular for reasons of lack of shelf life and the lack of the possibility of cleaning the filter.
In general, according to the prior art, such filters consist of a paper fleece or mat, which, because of its low strength and solubility in oil, has only a limited service life. The paper fleece or mat is arranged in a filter cartridge and the oil flows through it.
summary o~ the Invention An ob~ect of the present invention is therefore to create a material for a filter, especially an oil filter of motor vehicles, which possesses a higher strength and which is thereby reusable when needed.
2~8777~
According to this invention, the object of the invention is achieved by a material consisting of a sintered metal fleece or mat with a fabric as supporting or carrying matrix, onto which metallic fibres are sintered at least on one side.
In addition to or instead of metallic fibres, especially short fibres, metal chips or metal powder can also be sintered onto the supporting or carrying matrix. Likewise, mixtures of the said substances are also possible.
In an advantageous way, metallic short fibres, metal chips or metal powder or a mixture thereof are sintered onto both sides of the matrix.
Through this embodiment, even greater stability and improved efficiency are obtained.
One of the main advantages of this filter material consists in that it has a far higher strength than known paper fleeces or mats. For this reason, it has a distinctly greater service life and can, if required, be used many times. In particular, because of its greater strength, the filter is not destroyed or damaged if it is cleaned for multiple use, e.g.
after an oil change. The filter can be back-flushed for this purpose. This can, for example, be done when the filter is not installed or else, if need be, also when it is installed, if appropriate back-flushing means are provided.
A further advantage of the material according to the -3- ~o877~3 invention lies in the fact that it possesses a very high porosity with a high degree of separation of impurities.
Despite the greater strength of the sintered metal fleece or mat, this is, however, sufficiently elastic and/or flexible so that it can be brought into any desired shape or form of filter.
A tangle of endless isotropic metallic fibres are used as the material for the supporting or carrying matrix.
A commercially available product is also suitable for this, which consists, for example, of a fabric with warp and weft threads woven in a well-known linen bond.
Values between 0.05 to 0.2 mm, preferably 0.1 mm have proven to be suitable thicknesses for the supporting or carrying matrix. The total thickness of the material, together with the sintered-on parts lies preferably between O.2 to 1 mm.
Rustfree or stainless or ferritic steel can be used as the material for the matrix and the sintered-on parts.
In case of need, however, other materials are also suitable. When used as a petrol filter, for example, in which event the creation of sparks should be avoided, copper, aluminium or a nonferrous metal is suitable. Aluminium or nonferrous metal have a lower weight as an additional advantage.
The material according to the invention can be manufactured in any way desired. In a simple way a ;2~7773 band or strip material is used as a matrix. This material is brought in a simple manner into the desired filter form or shape, which is generally a cylindrical shape. With the material according to the invention, the joints can be made in a simple way and thus very cheaply, preferably soldered or welded. It goes without saying, however, that a connection can also be made by bonding or gluing.
The manufacture of the sintered metal fleece or mat out of the supporting or carrying matrix and the sintered-on parts can be done in a simple manner by coating the matrix with a bonding agent and subsequently sprinkling on the fibres and/or metal chips or metal powder or a mixture thereof. Because of the bonding agent, these parts then cling to the matrix, after which sintering takes place in the well-known manner, which is effected at appropriate temperatures depending on the metals used.
In the following, an embodiment of the invention is described showing the underlying principle.
Brief Description of the Drawing ig. 1 a section through the material according to the invention;
ig. 2 a view of a filter made out of the material according to the invention.
Detailed Description of the Invention A supporting or carrying matrix is used as the basic material for a filter, which consists of a fabric with 2~8~73 endless isotropic metal fibres.
Metallic short fibres with lengths between 1 mm and 5 mm are applied to both sides of matrix 1, which are sintered together with the matrix.
As can be seen in Fig. 2, the sintered metal fleece or mat is formed from a band or strip of appropriate length, which is wound into a cylindrical form or shape. The two ends of the band or strip are connected to each other by a soldered or welded seam 3.
Sin~e the sintered metal fleece or mat is very variable with regard to its profiling, it can be used in a very advantageous way as a purely exchangeable part for the well-known paper fleece or mat filter.
This means that, for example, oil filters in motor vehicles can be retrofitted or re-equipped in a simple way and without any problems with the sintered metal fleece or mat according to the invention. The sintered metal fleece or mat according to the invention can be inserted in conventional oil-filter tanks or receptacles or oil-filter cartridges. Because of its great stability it can, if need be, remain therein during the entire period of use and must solely be removed and cleaned or subjected to back-flushing at well-defined intervals.
According to this invention, the object of the invention is achieved by a material consisting of a sintered metal fleece or mat with a fabric as supporting or carrying matrix, onto which metallic fibres are sintered at least on one side.
In addition to or instead of metallic fibres, especially short fibres, metal chips or metal powder can also be sintered onto the supporting or carrying matrix. Likewise, mixtures of the said substances are also possible.
In an advantageous way, metallic short fibres, metal chips or metal powder or a mixture thereof are sintered onto both sides of the matrix.
Through this embodiment, even greater stability and improved efficiency are obtained.
One of the main advantages of this filter material consists in that it has a far higher strength than known paper fleeces or mats. For this reason, it has a distinctly greater service life and can, if required, be used many times. In particular, because of its greater strength, the filter is not destroyed or damaged if it is cleaned for multiple use, e.g.
after an oil change. The filter can be back-flushed for this purpose. This can, for example, be done when the filter is not installed or else, if need be, also when it is installed, if appropriate back-flushing means are provided.
A further advantage of the material according to the -3- ~o877~3 invention lies in the fact that it possesses a very high porosity with a high degree of separation of impurities.
Despite the greater strength of the sintered metal fleece or mat, this is, however, sufficiently elastic and/or flexible so that it can be brought into any desired shape or form of filter.
A tangle of endless isotropic metallic fibres are used as the material for the supporting or carrying matrix.
A commercially available product is also suitable for this, which consists, for example, of a fabric with warp and weft threads woven in a well-known linen bond.
Values between 0.05 to 0.2 mm, preferably 0.1 mm have proven to be suitable thicknesses for the supporting or carrying matrix. The total thickness of the material, together with the sintered-on parts lies preferably between O.2 to 1 mm.
Rustfree or stainless or ferritic steel can be used as the material for the matrix and the sintered-on parts.
In case of need, however, other materials are also suitable. When used as a petrol filter, for example, in which event the creation of sparks should be avoided, copper, aluminium or a nonferrous metal is suitable. Aluminium or nonferrous metal have a lower weight as an additional advantage.
The material according to the invention can be manufactured in any way desired. In a simple way a ;2~7773 band or strip material is used as a matrix. This material is brought in a simple manner into the desired filter form or shape, which is generally a cylindrical shape. With the material according to the invention, the joints can be made in a simple way and thus very cheaply, preferably soldered or welded. It goes without saying, however, that a connection can also be made by bonding or gluing.
The manufacture of the sintered metal fleece or mat out of the supporting or carrying matrix and the sintered-on parts can be done in a simple manner by coating the matrix with a bonding agent and subsequently sprinkling on the fibres and/or metal chips or metal powder or a mixture thereof. Because of the bonding agent, these parts then cling to the matrix, after which sintering takes place in the well-known manner, which is effected at appropriate temperatures depending on the metals used.
In the following, an embodiment of the invention is described showing the underlying principle.
Brief Description of the Drawing ig. 1 a section through the material according to the invention;
ig. 2 a view of a filter made out of the material according to the invention.
Detailed Description of the Invention A supporting or carrying matrix is used as the basic material for a filter, which consists of a fabric with 2~8~73 endless isotropic metal fibres.
Metallic short fibres with lengths between 1 mm and 5 mm are applied to both sides of matrix 1, which are sintered together with the matrix.
As can be seen in Fig. 2, the sintered metal fleece or mat is formed from a band or strip of appropriate length, which is wound into a cylindrical form or shape. The two ends of the band or strip are connected to each other by a soldered or welded seam 3.
Sin~e the sintered metal fleece or mat is very variable with regard to its profiling, it can be used in a very advantageous way as a purely exchangeable part for the well-known paper fleece or mat filter.
This means that, for example, oil filters in motor vehicles can be retrofitted or re-equipped in a simple way and without any problems with the sintered metal fleece or mat according to the invention. The sintered metal fleece or mat according to the invention can be inserted in conventional oil-filter tanks or receptacles or oil-filter cartridges. Because of its great stability it can, if need be, remain therein during the entire period of use and must solely be removed and cleaned or subjected to back-flushing at well-defined intervals.
Claims (15)
1. Material for filters, especially oil, petrol or diesel filters of motor vehicles, made out of a sintered metal fleece or mat, with a fabric as supporting or carrying matrix onto which metal fibres are sintered at least on one side.
2. Material according to claim 1, w h e r e i n the fibres are short fibres.
3. Material according to claim 1, w h e r e i n metal chips or metal powder are sintered on.
4. Material according to claim 1, w h e r e i n metallic short fibres, metal chips or metal powder or a mixture thereof are sintered on on both sides.
5. Material according to claim 4, w h e r e i n the metallic short fibres have lengths between 1 mm and 5 mm, preferably 2 mm.
6. Material according to claim 1, w h e r e i n the matrix is formed from an endless, isotropic tangle of metal fibres.
7. Material according to claim 1, w h e r e i n the matrix is formed from MD and CD threads in linen texture.
8. Material according to claim 1, w h e r e i n the thickness of the matrix is between 0.05 and 0.2 mm, preferably 0.1 mm.
9. Material according to claim 1, w h e r e i n its total thickness is between 0.2 mm and 1 mm.
10. Material according to claim 1, w h e r e i n it consists of rustfree (stainless) or ferritic material.
11. Material according to claim 1, w h e r e i n it consists of aluminium, copper or a nonferrous metal.
12. Process for the manufacture of a material for filters, especially for oil, petrol or diesel filters of motor vehicles, w h e r e i n a fabric is used as supporting or carrying matrix into which fibres and/or metal chips or metal powder is sprinkled, after which the material is sintered.
13. Process according to claim 12, w h e r e i n a band or strip is used as matrix, which is wound into the desired filter form or shape, especially into a cylindrical shape, with the connecting seam being welded, soldered or bonded.
14. Filter, especially oil, petrol or diesel filter of motor vehicles, which is formed out of a sintered metal fleece or mat with a fabric as supporting or carrying matrix, onto which at least on one side metal chips or metal powder or a mixture thereof are sintered.
15. Use of a sintered metal fleece or mat with a fabric as supporting matrix, onto which metallic fibres, metal chips or metal powder or a mixture thereof are sintered at least on one side, as a filter that can be used and cleaned in a multiplicity of ways, especially for oil, petrol or diesel filter of motor vehicles.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924201559 DE4201559A1 (en) | 1992-01-22 | 1992-01-22 | MATERIAL FOR FILTERS, IN PARTICULAR OIL, GASOLINE OR DIESEL FILTERS OF MOTOR VEHICLES |
| DEP4201559.6 | 1992-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2087773A1 true CA2087773A1 (en) | 1993-07-23 |
Family
ID=6449972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2087773 Abandoned CA2087773A1 (en) | 1992-01-22 | 1993-01-21 | Material for filters, especially oil, petrol or diesel filters of motor vehicles |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0553637A1 (en) |
| JP (1) | JPH05261223A (en) |
| CA (1) | CA2087773A1 (en) |
| DE (1) | DE4201559A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5545323A (en) * | 1993-09-28 | 1996-08-13 | Pall Corporation | Filter assembly and method of making a filter assembly |
| US5733452A (en) * | 1995-04-21 | 1998-03-31 | Pall Corporation | Filter and end cap assembly including a porous layer for sealing with a potting material and method for making the assembly |
| US7000655B2 (en) | 2004-01-09 | 2006-02-21 | The Lubrizol Corporation | Fluid additive delivery systems |
| AU2002301547B2 (en) * | 2002-10-21 | 2010-04-01 | Ali Hasan Hamdan Abdelqader | Diesel Fuel Purifier |
| US8022021B2 (en) | 2007-02-05 | 2011-09-20 | The Lubrizol Corporation | Low ash controlled release gels |
| US8293119B2 (en) | 2007-10-19 | 2012-10-23 | The Lubrizol Corporation | Filter cap additive delivery system |
| US10226723B2 (en) | 2010-02-12 | 2019-03-12 | Donaldson Company, Inc. | Liquid filtration media, filter elements and methods |
| CN111550492A (en) * | 2020-05-15 | 2020-08-18 | 重庆合达科技有限公司 | Oil-containing bearing assembly and assembling device thereof |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5395039A (en) * | 1993-09-28 | 1995-03-07 | Pall Corporation | Method of making a filter assembly |
| EP0653235A1 (en) * | 1993-11-16 | 1995-05-17 | Scapa Group Plc | Filter |
| GB2283926B (en) * | 1993-11-16 | 1998-01-14 | Scapa Group Plc | Filter |
| DE19624523A1 (en) * | 1996-06-20 | 1998-01-02 | Mann & Hummel Filter | filter |
| FR2777800B1 (en) * | 1998-04-24 | 2000-07-13 | Sintertech | PARTICLE FILTER FOR GAS |
| EP1218088A1 (en) * | 1999-09-10 | 2002-07-03 | N.V. Bekaert S.A. | Welded microfilter tube comprising sintered fibers |
| DE10016841A1 (en) * | 2000-04-05 | 2001-10-18 | Drafas Gmbh | Formable mesh fabric composite |
| KR20030026549A (en) * | 2001-09-26 | 2003-04-03 | 주식회사 미래소재 | Manufacturing Method for Filter of Cars |
| JP2011502743A (en) * | 2007-10-24 | 2011-01-27 | モット・コーポレーション | Sintered fiber filter |
| DE102008056054A1 (en) * | 2008-11-05 | 2010-05-06 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Fleece for exhaust treatment and emission control device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2963163A (en) * | 1957-10-11 | 1960-12-06 | Arrow Tools Inc | Filter unit and method of making |
| US2968405A (en) * | 1959-01-21 | 1961-01-17 | Arrow Tools Inc | Sintered metal filter and method of making |
| FR1333105A (en) * | 1960-08-03 | 1963-07-26 | Purolator Products | Porous objects and process for making them |
| US4257890A (en) * | 1979-07-25 | 1981-03-24 | Hurner Erwin E | Fuel-water separator |
| DE3537672C1 (en) * | 1985-10-23 | 1987-05-14 | Pressmetall Krebsoege Gmbh | Filter body |
-
1992
- 1992-01-22 DE DE19924201559 patent/DE4201559A1/en not_active Withdrawn
-
1993
- 1993-01-13 EP EP93100362A patent/EP0553637A1/en not_active Withdrawn
- 1993-01-21 CA CA 2087773 patent/CA2087773A1/en not_active Abandoned
- 1993-01-22 JP JP2598893A patent/JPH05261223A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5545323A (en) * | 1993-09-28 | 1996-08-13 | Pall Corporation | Filter assembly and method of making a filter assembly |
| US5733452A (en) * | 1995-04-21 | 1998-03-31 | Pall Corporation | Filter and end cap assembly including a porous layer for sealing with a potting material and method for making the assembly |
| AU2002301547B2 (en) * | 2002-10-21 | 2010-04-01 | Ali Hasan Hamdan Abdelqader | Diesel Fuel Purifier |
| US7000655B2 (en) | 2004-01-09 | 2006-02-21 | The Lubrizol Corporation | Fluid additive delivery systems |
| US8022021B2 (en) | 2007-02-05 | 2011-09-20 | The Lubrizol Corporation | Low ash controlled release gels |
| US8293119B2 (en) | 2007-10-19 | 2012-10-23 | The Lubrizol Corporation | Filter cap additive delivery system |
| US10226723B2 (en) | 2010-02-12 | 2019-03-12 | Donaldson Company, Inc. | Liquid filtration media, filter elements and methods |
| US11565206B2 (en) | 2010-02-12 | 2023-01-31 | Donaldson Company, Inc. | Liquid filtration media, filter elements and methods |
| CN111550492A (en) * | 2020-05-15 | 2020-08-18 | 重庆合达科技有限公司 | Oil-containing bearing assembly and assembling device thereof |
| CN111550492B (en) * | 2020-05-15 | 2021-02-09 | 重庆合达科技有限公司 | Oil-containing bearing assembly and assembling device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0553637A1 (en) | 1993-08-04 |
| JPH05261223A (en) | 1993-10-12 |
| DE4201559A1 (en) | 1993-07-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |