CN101815569B - 过滤器元件和过滤器系统 - Google Patents
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Abstract
本发明涉及一种过滤器元件,该过滤器元件包括以同心的形式设计的z字形折叠的过滤器介质(10)。在介质的端侧处存在端盘(11,12)。端盘(12)具有同心的开口并且具有第一环形凸起(14)和第二环形凸起(15)以及布置在两者之间的密封槽(16)。在过滤器介质和环形凸起(14,15)之间的区域中布置有加强板(17)。环形凸起(14,15)的端面(18,19)支承在过滤器元件罩壳的径向伸延的肋条(20,21)处。
Description
技术领域
本发明涉及尤其用于内燃机的吸入空气的过滤器元件(Filterelement)和过滤器系统(Filtersystem)。
技术背景
从文件US 4,720,292中已知一种带有以下特征的空气过滤器:带有轴向排出口和基本上敞开的第二端部(其可通过可拆卸的盖板而闭合)的罩壳。在罩壳的周缘处布置有空气进入口。在罩壳中存在基本上圆柱形的带有内支撑管(Stützrohr)、带有外支撑管的过滤器的过滤器元件,其中,过滤器元件同轴地布置在罩壳中。罩壳处的过滤器元件的密封通过环形端盘(Endscheibe)而实现,该端盘具有基本上圆柱形的径向向内指向的表面并且被推动通过出口部分的内区段。
已知地,空气过滤器的滤芯(Filtereinsatz)在一定的使用时间后被更换。根据灰尘量,空气过滤器的寿命可达到几天(工程器械)至数月。
从上文所提及的US文件中已知的滤芯以及其它通常应用的滤芯由材料的结合组成,其中尤其地,钢片或塑料用于支撑管。过滤器介质(Filtermedium)为纸或塑料无纺织物(Kunststoffvlies)。端盘由塑料、例如由软性弹性体(Weichelastomer)制成。
尤其在过滤器元件的频繁更换下,罩壳中的过滤器元件的可靠的且过程稳妥(prozesssicher)的密封就显得重要。密封应实施成耐温且抗振击。即使在遭受强烈振动和冲击的设备或装置处,也必须保证过滤器元件的密封。但同时,过滤器元件自身应尽可能不具有金属元件,由此其可容易地以热学的方式清除(entsorgen)。
发明内容
因此,本发明的目的是,提供带有高过滤性能及未过滤的介质的区域和已过滤的介质的区域之间的可靠密封的过滤器元件及过滤器系统。该目的通过主权利要求的特征得以实现。
本发明的根本优点在于,通过带有两个环形凸起状的组件(Anordnung)和位于两者之间的密封槽的过滤器元件的密封件的设计方案,保证了一方面实现高密封效果并且另一方面实现过滤器元件在罩壳中的良好的支承。尤其在应用塑料以用于在承受振动负载的元件处的密封下,设计要求即便在极端温度波动下也能可靠地工作。
根据本发明的一种设计方案,承载(tragen)有密封件的端盘由聚氨酯(Polyurethan)制成。当然也存在这样的可能性,即,由软性弹性体或由多种组分(Komponente)制造端盘(例如,以装配注塑工艺(Montagespritzgieβverfahren)),其中,形成密封件的组分包括弹性体,而建立与过滤器介质的连接的组分为热塑性塑料。热塑性塑料可与过滤器介质相焊接或胶合(verkleben)。
在本发明的另一设计方案中设置,设有带有穿孔的加强板该加强板位于端盘中。穿孔使得在制造过滤器元件时聚氨酯的透过成为可能,并且由此实现了过滤器介质和密封件轮廓以及加强板之间的紧密的(innig)的形状配合(formschlüssig)的连接。
根据一改进方案,在延伸越过聚氨酯泡沫塑料(Polyurethanschaum)的区域中,将加强板设有环面或圆柱形环套(Ringmantel)。其在过滤器介质的折叠部(Falte)上延伸(例如,在过滤器元件的总长度的0至30%的区域上),并且由此在不正确的操作中或者例如在敲落污物(Ausklopfen)或手动清洁过滤器元件时保护折叠部。
根据发明的一种设计方案,第二且与密封端盘相对的端盘同样可由聚氨酯泡沫塑料制成,并且具有由热塑性塑料制成的闭合件,该闭合件密封过滤器元件的内部空间。
端盘也可以触变涂覆工艺(thixotrop Auftragsverfahren)而制造。这意味着触变性材料的计量涂覆(aufdosieren),其中,同时在无需附加的模具铸型(Formschale)的情况下制造密封件结构。
本发明还涉及带有过滤器元件的过滤器系统。过滤器系统尤其适用于内燃机的吸入空气的过滤并且包括罩壳和盖罩以用于容纳过滤器元件。以有利的方式,过滤器系统配备有两个环形槽,其在密封区域中与过滤器元件的密封轮廓(Dichtkontur)相关联(kommunizieren)。
根据一改进方案,在罩壳处在进口的区域中布置有旋风或旋流分离器旋风或旋流分离器由使待过滤的介质置于(versetzen)旋转状态中的引导几何结构组成。通过这种旋转,使污物在罩壳壁的区域中集中并且在合适的部位处通过污物出口而被排出(austragen)。
根据本发明的另一设计方案,设有次级元件,该次级元件定位在过滤器系统的内部中。次级元件的任务是,在更换过滤器元件时继续保持过滤器系统的出口的闭合,以使得在清洁或更新过滤器元件期间没有污物可穿入到该区域中。在优选的设计方案中,次级元件通过螺栓连接与罩壳相连接并且相对于罩壳设有密封件。
不仅从权利要求而且从附图描述和附图中得出这些和其它特征。
附图说明
下面根据实施例进一步解释本发明。其中:
图1显示了穿过过滤器系统的截面,并且
图2显示了过滤器罩壳的密封区域中的细节图示。
具体实施方式
根据图1的过滤器系统包括罩壳26,该罩壳26构造成基本上同心并且具有进口28。过滤器系统适用于内燃机吸入空气的过滤。通过进口28待净化的空气按箭头38被输送,流动通过旋风预分离器(Zyklonvorabscheider)34并且在该处被置于旋流状态中。由于这种旋流,存在于空气中的颗粒物到达罩壳外壁处并且从该处通过污物出口35(其可通过合适的阀门而闭合)而被向外运载。
在罩壳26处布置有中间件(Mittelstück)37。该中间件37同样设计成同心的并且在区域40中例如通过焊接连接而与罩壳相联结。在中间件37处存在盖罩27。该盖罩27通过夹紧闭合件(Spannverschluss)或者其它合适的闭合系统而与中间件可分离地相连接。由此,盖罩、中间件以及罩壳形成了封闭系统,该封闭系统具有用于导出已净化的空气的出口29。
在整体系统内存在过滤器元件39。该过滤器元件39包括z字形折叠的过滤器介质10并且以同心的形式被构造。过滤器元件39在端侧处具有端盘11,12。端盘12具有同心的开口13,而另一端盘11利用闭合件24被闭合。也有可能的是,另一端盘设有同心的开口,其通过盖罩27处的接管(Stutzen)所闭合。待净化的空气按照箭头41流动通过过滤器元件并且按照箭头42以已净化的形式通过出口29流动到此处未显示的内燃机。过滤器元件在布置在右侧的端盘12处具有第一环形凸起(Ringwürst)14和第二环形凸起15。两者之间存在密封槽16。
在端盘12内设有加强板17。该加强板17具有穿孔22。加强板在外区域中(即在密封料区域(Dichtungsmassenbereich)外)设有环面23。该环面23适用于在装配或敲落污物或其它手动操作时防护过滤器介质或元件。
环形凸起14及环形凸起15触碰肋条(Rippe)20,21上并且由此限定过滤器元件在罩壳中的轴向位置。
在备选的不限于该实例的设计方案中,可通过将环形凸起14和15接合在环形槽31和32中(而未触碰肋条20,21)来限定过滤器元件的位置。备选地,也可使用其它点(Punkt)以用于附加的轴向和/或径向固定。
在图2中进一步示出肋条,这些肋条为所谓的双肋条,即两个相邻的肋条20a,20b,20c,其布置在环形槽31的槽底中和环形槽32的槽底中并且具有例如3至6mm的高度。
位于两个环形槽之间的密封桥接部(Dichtungssteg)33在其侧面处具有密封区域,此处端盘12利用其密封槽16密封。由此,通过这两个侧面形成了双重密封原理。密封槽16比密封桥接部33略深,以使得在该区域中一定的轴向公差成为可能。如已经提及的那样,端盘由聚氨酯泡沫塑料或其它弹性体制成,如此地确定其硬度大小,即,一方面端盘施加所必须的密封力,但另一方面同样提供过滤器元件在过滤器罩壳中的良好定位。由于两侧面密封和环形凸起14,15支承在肋条20上,需要相对小的装配力和用于更换过滤器元件的同样小的松动力。
在备选的不限于该实例的设计方案中,密封桥接部33在其轴向端部处具有附加的密封凸起(Dichtwulst),例如环形的、在密封桥接部33上伸延的、轴向指向到罩壳内部中的结构。由此可实现附加的轴向密封(而在将过滤器元件安装到过滤器罩壳中时不会对压紧力有大的影响)。例如,这可通过相对于密封桥接部33薄的密封凸起来实现。
端盘11设有支撑凸耳(Stütznase)43,44。支撑凸耳43,44支承在盖罩27处并且由此提供在端盘12方向上的足够的轴向力以及由此提供可靠的密封。在端盘12中置入(einbetten)有闭合件24。闭合件24将初始空气空间(Rohrluftraum)与清洁空气空间相隔开。在过滤器元件内存在次级元件36,该次级元件36包围内部空间25。已净化的空气流动经过次级元件,其通常具备无纺织物衬垫(Vliesauflage)45。无纺织物衬垫固定在热塑性或者金属基体46上。次级元件36通过螺纹47固定在出口29的出口接管处并且同时通过O形环48在该区域中被密封。
罩壳26设有内壁49。内壁具有相距环面23的较小的间距。根据图3在内壁处设有夹紧元件50。
夹紧元件由弹簧钢制成,其在多个部位处成型(ausformen)并且伸出到过滤器系统的安装空间中。成型的部位可在图1中看出并且设有参考标记51。在安装过滤器元件时,成型的部位被向外压并适用于过滤器元件的定心。如果不带环面23的过滤器元件插入到罩壳中,则不存在过滤器元件定心的可能性。在这种情况下,过滤器元件即过滤器介质可能损坏。由此,夹紧元件适用于防止无意地安装错误的或有缺陷的过滤器元件。
Claims (15)
1.一种过滤器元件,包括以同心的形式的z字形折叠的过滤器介质(10)、布置在端侧处的敞开或封闭的第一端盘(11)以及布置在相对端侧处的第二端盘(12),其中,第二端盘(12)具有同心的开口(13)并且基本上以圆环形的方式在过滤器介质的折叠部上延伸,其特征在于,第二端盘(12)具有轴向向外延伸的第一环形凸起(14)以及密封槽(16),其中,所述环形凸起(14)具有外端面(18,19),所述外端面(18,19)支承在容纳所述过滤器元件的罩壳的径向伸延的肋条(20,21)处,并且其中第二端盘具有与所述第一环形凸起(14)有间距的且同样向外延伸的第二环形凸起(15),并且两个环形凸起(14,15)围绕所述密封槽(16)。
2.根据权利要求1所述的过滤器元件,其特征在于,第二端盘在所述过滤器介质和环形凸起之间的区域中具有加强板(17)。
3.根据权利要求1所述的过滤器元件,其特征在于,第二端盘在所述过滤器介质和环形凸起之间的区域中具有加强环。
4.根据权利要求1所述的过滤器元件,其特征在于,第二端盘(12)由弹性体制成。
5.根据权利要求4所述的过滤器元件,其特征在于,第二端盘(12)由聚氨酯泡沫塑料制成。
6.根据权利要求5所述的过滤器元件,其特征在于,在端盘中置入加强板(17),其中,所述加强板具有穿孔(22),所述穿孔(22)使得在装配时聚氨酯泡沫塑料的穿流成为可能。
7.根据权利要求2所述的过滤器元件,其特征在于,所述加强板具有轴向向外在所述过滤器元件上延伸的环面(23)。
8.根据权利要求1所述的过滤器元件,其特征在于,第一端盘(11)由聚氨酯泡沫塑料制成并且具有同心布置的闭合件(24),所述闭合件(24)在第一端盘的区域中密封所述过滤器元件的内部空间(25)。
9.根据上述权利要求1-8中任一项所述的过滤器元件,其特征在于,两个端盘配备有槽-双凸起-密封系统。
10.一种带有根据上述权利要求中任一项所述的过滤器元件的过滤器系统,包括:
-基本上同心构造的罩壳(26),
-同样同心构造的闭合所述罩壳(26)的盖罩(27),
-布置在所述罩壳和/或盖罩处的以用于输送待过滤的介质的进口(28),
其中,在所述罩壳(26)处同心地设置有用于导出已过滤的介质的出口(29),
其中,在所述罩壳处在所述出口(29)的区域中设置有密封轮廓,所述密封轮廓与环形凸起(14,15)和密封槽(16)相对应。
11.根据权利要求10所述的过滤器系统,其特征在于,所述密封轮廓包括两个同心地伸延的环形槽(31,32)和布置在所述两个环形槽之间的密封桥接部(33),其中,所述环形槽在槽底处具有肋条(20,21)并且所述密封桥接部(33)具有比所述过滤器元件的密封槽(16)更小的高度。
12.根据权利要求10或11所述的过滤器系统,其特征在于,在所述进口(28)的区域中设置有旋风分离器(34)并且在所述罩壳(26)或盖罩(27)处设置有污物出口(35)。
13.根据权利要求10所述的过滤器系统,其特征在于,设置有次级元件(36),所述次级元件(36)可定位在所述过滤器元件的内部中,其中所述次级元件的任务是,在更换过滤器元件时继续保持过滤器系统的出口的闭合,以使得在清洁或更新过滤器元件期间没有污物可穿入到该区域中。
14.根据权利要求13所述的过滤器系统,其特征在于,所述次级元件(36)通过螺栓连接与所述罩壳(26)相连接。
15.根据权利要求10所述的过滤器系统,其特征在于,所述待过滤的介质为空气。
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DE202007013822.9 | 2007-10-02 | ||
DE202007013822U DE202007013822U1 (de) | 2007-10-02 | 2007-10-02 | Filterelement und Filtersystem |
PCT/EP2008/063202 WO2009047196A1 (de) | 2007-10-02 | 2008-10-02 | Filterelement und filtersystem |
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EP (2) | EP2813275B1 (zh) |
JP (1) | JP5133420B2 (zh) |
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CN (1) | CN101815569B (zh) |
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- 2008-10-02 JP JP2010527451A patent/JP5133420B2/ja active Active
- 2008-10-02 EP EP14181905.2A patent/EP2813275B1/de active Active
- 2008-10-02 BR BRPI0817906-9A patent/BRPI0817906B1/pt active IP Right Grant
- 2008-10-02 ES ES14181905.2T patent/ES2685629T3/es active Active
- 2008-10-02 EP EP08804988.7A patent/EP2227307B1/de active Active
- 2008-10-02 WO PCT/EP2008/063202 patent/WO2009047196A1/de active Application Filing
- 2008-10-02 ES ES08804988.7T patent/ES2524256T3/es active Active
- 2008-10-02 US US12/680,978 patent/US8142533B2/en active Active
- 2008-10-02 DE DE112008002470T patent/DE112008002470A5/de not_active Withdrawn
- 2008-10-02 KR KR1020107007142A patent/KR101501796B1/ko not_active IP Right Cessation
- 2008-10-02 CN CN200880110845.9A patent/CN101815569B/zh active Active
-
2009
- 2009-04-01 US US12/996,600 patent/US8591621B2/en active Active
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2012
- 2012-03-25 US US13/429,397 patent/US8287612B2/en active Active
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Also Published As
Publication number | Publication date |
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US20120210683A1 (en) | 2012-08-23 |
ES2524256T3 (es) | 2014-12-04 |
US8142533B2 (en) | 2012-03-27 |
WO2009047196A1 (de) | 2009-04-16 |
BRPI0817906A2 (pt) | 2015-04-07 |
US8591621B2 (en) | 2013-11-26 |
EP2813275A1 (de) | 2014-12-17 |
DE102008027279A1 (de) | 2009-04-09 |
US20110094197A1 (en) | 2011-04-28 |
DE112008002470A5 (de) | 2010-10-07 |
BRPI0817906B1 (pt) | 2019-03-26 |
US20100263339A1 (en) | 2010-10-21 |
EP2813275B1 (de) | 2018-08-08 |
EP2227307A1 (de) | 2010-09-15 |
JP2010540234A (ja) | 2010-12-24 |
DE202007013822U1 (de) | 2009-02-19 |
DE102008027279B4 (de) | 2020-06-04 |
KR101501796B1 (ko) | 2015-03-11 |
EP2227307B1 (de) | 2014-10-01 |
ES2685629T3 (es) | 2018-10-10 |
US8287612B2 (en) | 2012-10-16 |
KR20100080523A (ko) | 2010-07-08 |
CN101815569A (zh) | 2010-08-25 |
JP5133420B2 (ja) | 2013-01-30 |
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