• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a filter element (1) which is designed as an inertia separator, that is to say which has means (2) which separate particles by deflecting a circulating fluid. The invention aims to indicate a filter element that can be used as an inertia separator and that can be used in small installation spaces thanks to a compact structure, knowing that it has a low resistance to flow, a capacity maximum accumulation of dust and an optimum separating action. For this purpose, the filter element (1) is characterized in that the means (2) consist of a nonwoven or have a nonwoven.
    公开号:FR3016804A1
    申请号:FR1550284
    申请日:2015-01-14
    公开日:2015-07-31
    发明作者:Alexandra Lazarevic；Volker Braeunling；Robert Loesel
    申请人:Carl Freudenberg KG；
    IPC主号:
    专利说明:

    [0001] The invention relates to a filter element which is designed as an inertia separator, that is to say which has means which separate particles by deflecting a circulating fluid. Document EP 1 262 223 A1 discloses a separator for paint mist. Such inertia separators mainly separate coarse particles. Also known in the state of the art designs for the separation of liquid aerosols. However, the already known inertia separators do not allow a compact construction method, which makes them suitable for use in small installation spaces. In this context, there is a need for inertial separators that can be used in relatively small installation spaces. In particular, there are relatively small installation spaces in motor vehicles.
    [0002] In addition, the inertia separators known in the state of the art often have a high resistance to flow, a low separating action and a low dust accumulation capacity. The invention therefore aims to indicate a filter element that can be used as an inertia separator and that can be used in small installation spaces thanks to a compact structure, knowing that it has a low resistance to flow, maximum dust accumulation capacity and optimum separating action. The present invention achieves this object by the fact that said means consist of a nonwoven or comprise (present) a nonwoven. It was initially found that pure inertial separators do not develop additional filtration action. That being so, it has been found according to the invention that a filter element which consists of a non-woven fabric can be made in the form of an inertia separator. According to the invention, a combination of two separation mechanisms, ie inertial separation and filtration, is thus produced in a filter element. It is thus possible to obtain high usage times. In addition, structural designs based on a two-storey construction can be avoided. These designs would require a large installation space. According to the invention, this disadvantage can be overcome by using a single filter element. This allows a small and compact construction mode for the whole of a filtration system. By the combination and nesting of the two separation mechanisms mentioned above, it is possible to use filtering agents having a high permeability to air, so that low pressure losses can be obtained. Thanks to the combination according to the invention of an inertia separator and the "non-woven" filtering agent, two filter stages are grouped into one. Usually, the coarse dust is filtered by a pre-filter element or a filter mat. It is only in the second filter stage that the fine dust is retained. The prefilter element often has a lower replacement interval than the second filter stage. This requires a significant maintenance expense. On the other hand, the filter element according to the invention makes it possible to obtain a pressure loss which, compared to two filter stages, is very low. In addition, the filter element can be installed in a small installation space. The filter element can be used for a longer duration and thus has a long service life, since its dust accumulation capacity is significantly increased and the separated dust does not cause a decrease in the porosity of the filtering agent. This provides a filter element which can be used as an inertia separator and which can be used in small installation spaces thanks to a compact structure, knowing that this filter element has a low resistance to flow, a maximum capacity of accumulation of dust and an optimal separating action. The purpose mentioned in the introduction is therefore achieved. Said means could be made in the form of ply walls which are made of a nonwoven or which have (include) a nonwoven. The filter element has these means to produce a deflection of a circulating fluid. In this way, the coarse particles are separated on the basis of inertia effects and bonded in the nonwoven and on the surface of the latter. Advantageously, particles are bound in the nonwoven by deep filtration and particles are bound on the surface of the latter by surface filtration. At the same time, a portion of the amount of air can flow through the nonwoven, so that the fine particles are also retained in an efficient manner. The filter element could have a plurality of pairs of V-shaped or roof-shaped fold walls, with two pairs of fold walls each opposed at a mutual distance and disposed mutually. shifted so that at least one flow channel is formed between them. A flowing fluid can thus bypass the open edges of the fold wall pairs, and is thereby deflected into flow channels. The pairs of fold walls could respectively underlie two planes, knowing that the planes are mutually distant and that the pairs of fold walls are also mutually distant in the planes. A circulating fluid can thus be deflected in a particularly efficient manner. With this open construction mode, there can be no clogging of the filter element. It has been surprisingly found that the quality of particle separation is not impaired by the bypass channels produced to promote flow. This is due to the combination of inertial separation by coarse particle deflection and simultaneous deep filtration by the "nonwoven" filter medium. The filter element could have two flat filters. From two commercially available flat filters, it is possible, following a simple assembly, to create a base body in which a plurality of flow channels are provided. The fold edges of the flat filters could rest one on the other, so that four fold walls each form a flow channel. This creates a closed flow channel, which can be traversed axially by a circulating fluid. Two passages could be formed in at least one flow channel, knowing that a first passage is designed as an inlet opening in the flow channel and a second passage is designed as an outlet opening of the flow channel. flow. It is thus possible to pass a fluid flowing through the filter element in order to produce an inertial separation of the particles carried in the circulating fluid. The passages are arranged relative to each other such that the direction of flow of a circulating fluid is deflected, preferably 90 °, at its exit from the flow channel. This produces an inertial separation. Among the drawings: FIG. 1 is a schematic projection view of a first exemplary embodiment of a filter element, in which V-shaped or roof-shaped roof walls are arranged by being mutually opposed, but mutually offset, and Fig. 2: represents two flat filters which are arranged mutually opposed, knowing that their fold edges rest on each other and thus form flow channels in which passages are formed on opposite sides.
    [0003] FIG. 1 represents a filter element 1 which is designed as an inertia separator, that is to say which has means 2 which separate particles by deflection of a circulating fluid. The means 2 have (include) a nonwoven. The means 2 are in the form of ply walls 3 which are made of a nonwoven or which have a nonwoven. The filter element 1 has several pairs 4 of fold walls arranged V-shaped or roof-shaped with two slopes, knowing that two pairs 4 of fold walls are each opposed at a mutual distance and are arranged mutually offset such that at least one flow channel 5 is formed between them. The flow channel 5 is schematically represented by an arrow. The pairs 4 of fold walls sub-tend respectively two planes, knowing that the planes are mutually distant and the pairs 4 of fold walls are also mutually distant in the planes.
    [0004] FIG. 2 shows a filter element 1 which is formed as an inertia separator, that is to say which has means 2 'which separate particles by deflecting a circulating fluid. The means 2 'have a nonwoven. The means 2 'are in the form of ply walls 3' which are made of a nonwoven or which have a nonwoven. The filter element has two flat filters 6 '. The fold edges of the flat filters 6 'rest on each other, so that four fold walls 3' each form a flow channel 5 '.
    [0005] Two passages 7'a, 7'b are formed in at least one flow channel 5 ', whereby a first passage 7'a is designed as an inlet opening in the flow channel 5'. and that a second passage 7'b is designed as the outlet opening of the flow channel 5 '. The passages 7'a, 7'b are arranged relative to each other so that the flow direction of a circulating fluid is deflected by 90 ° at its exit from the flow channel 5 '. Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.
    权利要求:
    Claims (8)
    [0001]
    REVENDICATIONS1. Filter element (1, 1 ') which is formed as an inertia separator, that is to say which has means (2, 2') which separate particles by deflection of a circulating fluid, characterized in that the means (2, 2 ') consist of a nonwoven or comprise a nonwoven.
    [0002]
    2. Filter element according to claim 1, characterized in that the means (2, 2 ') are in the form of ply walls (3, 3') which are made of a nonwoven or which have a nonwoven .
    [0003]
    3. Filter element according to claim 1 or 2, characterized in that the filter element (1) has a plurality of pairs (4) of fold walls arranged V-shaped or roof-shaped with two slopes, knowing that two pairs (4) fold walls are each opposed at a mutual distance and are arranged mutually offset so that at least one flow channel (5) is formed between them.
    [0004]
    4. Filter element according to claim 3, characterized in that the pairs (4) of fold walls sub-tend respectively two planes, knowing that the planes are mutually distant and that the pairs (4) of fold walls are also mutually distant in the plans.
    [0005]
    5. Filter element according to claim 1 or 2, characterized in that the filter element (1 ') has two flat filters (6').
    [0006]
    6. Filter element according to claim 5, characterized in that the fold edges of the flat filters (6 ') rest one on the other, so that four fold walls (3') each form a channel d flow (5 ').
    [0007]
    7. Filter element according to claim 6, characterized in that two passages (7'a, 7'b) are formed in at least one flow channel (5 '), knowing that a first passage (7'a) is designed as an inlet opening in the flow channel (5 ') and a second passage (7'b) is designed as the outlet opening of the flow channel (5').
    [0008]
    8. Filter element according to claim 7, characterized in that the passages (7'a, 7'b) are arranged relative to each other so that the direction of flow of a circulating fluid is deviated at its exit from the flow channel (5 ').
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    同族专利:
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    KR20150099406A|2015-08-31|
    CN204672070U|2015-09-30|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4437867A|1977-05-12|1984-03-20|Lerner Bernard J|Removal of undesired components from gases|
    US5552048A|1988-06-15|1996-09-03|Pall Corporation|Two pleated filter composite having cushioning layers|
    CH678154A5|1989-04-26|1991-08-15|Robert Andreae|
    DE19903591A1|1999-01-29|2000-08-10|Oberland Mangold Gmbh|Support structure for an exhaust gas purification device|
    DE10125404A1|2001-05-25|2002-11-28|Mann & Hummel Filter|Inertial separator for cleaning gas stream has pattern of curved blades to bend gas stream and with sloping collecting surface for impurities|
    CN2582728Y|2002-12-05|2003-10-29|成都炉莱特尔净化技术实业有限公司|Lampblack filtering plate|
    FR2891158B1|2005-09-27|2007-11-23|Renault Sas|FILTER FOR GASEOUS FLUID|
    CN101021342A|2006-02-16|2007-08-22|张利勋|Oil fume filter board|
    US20080315465A1|2007-03-05|2008-12-25|Alan Smithies|Method of manufacturing composite filter media|
    KR20080093655A|2007-04-18|2008-10-22|주식회사 세원|Filter exchange type of oil separator|
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    JP2010131580A|2008-10-30|2010-06-17|Duskin Co Ltd|Filter, exhauster using the same, manufacturing method of filter and filter manufacturing device|
    KR20120109696A|2011-03-25|2012-10-09|유성엔비텍|Static filter media type filter with demister|
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    DE102014000914A1|2014-01-28|2015-07-30|Carl Freudenberg Kg|filter element|DE102014000914A1|2014-01-28|2015-07-30|Carl Freudenberg Kg|filter element|
    DE102018000357A1|2017-01-18|2018-07-19|Mann+Hummel Gmbh|Road vehicle with ambient air cleaning device, ambient air cleaning device and filter element|
    CN109663443B|2019-01-17|2021-04-13|中煤科工集团重庆研究院有限公司|Respiratory dust trapping apparatus|
    CN109621580B|2019-01-17|2021-05-04|中煤科工集团重庆研究院有限公司|Filtering component and filtering device|
    LU101440B1|2019-10-17|2021-04-19|Ucube Lab Sa|Air filter for a painting booth used for spray coating|
    法律状态:
    2016-01-28| PLFP| Fee payment|Year of fee payment: 2 |
    2017-01-26| PLFP| Fee payment|Year of fee payment: 3 |
    2018-09-07| PLSC| Publication of the preliminary search report|Effective date: 20180907 |
    2018-11-02| ST| Notification of lapse|Effective date: 20180928 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014000914.9A|DE102014000914A1|2014-01-28|2014-01-28|filter element|
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