CN101784319B - 具有破碎筋条的滤清器滤筒 - Google Patents
具有破碎筋条的滤清器滤筒 Download PDFInfo
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- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
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- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
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- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
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- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/42—Installation or removal of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/24—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
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Abstract
本发明提供一种滤清器滤筒,其呈具有内滤清器和外滤清器的滤清器套滤清器设计。例如破碎筋条的机构将所述外滤清器的上端板与所述内滤清器的上端板连接,以防止其间在组装时的相对轴向和径向移动。相对轴向或径向运动可产生有时被视为低质量滤清器的喀啦噪声。所述破碎筋条例如形成于所述外滤清器的所述上端板的内部表面上,且所述筋条啮合所述内滤清器的所述上端板的外周边。当将内滤清器安装到所述外滤清器中时,所述筋条中的一者或一者以上破碎,以确保所述滤清器之间的紧密轴向和径向啮合。
Description
优先权信息
本申请案正以康明斯滤清系统IP公司的名义作为PCT国际申请案而申请,且主张2007年9月6日申请的标题为“具有破碎筋条的滤清器滤筒(FILTER CARTRIDGE WITH CRUSH RIBS)”的第11/851163号美国专利申请案的权益,所述专利申请案以全文引用的方式并入本文中。
技术领域
本揭示案大体上涉及滤清领域,且更明确地说,涉及供滤清系统(例如燃油滤清系统)中使用的滤清器滤筒。
背景技术
滤清器滤筒在许多不同技术中用于对流体进行滤清。滤清器滤筒的一个实例是燃油滤清系统中所使用的燃油滤清器滤筒。
滤清器滤筒可构造有单个滤清媒介,或具有多个滤清媒介,例如使用安置在外滤清媒介内部的内滤清媒介的滤清器套滤清器(filter-in-filter)设计。滤清器套滤清器设计可在较宽的燃油界面值范围内提供较高的微粒滤清效率和较高的燃油/水分离度。
发明内容
滤清器滤筒用于滤清流体,例如燃油、润滑剂、水和其它液体,以及空气。滤清器滤筒的许多不同用途是可能的。举例来说,在一个实施例中,滤清器滤筒可用于“没有滤清器则不运转”的滤清系统中,所述滤清系统检验滤清器滤筒存在以预防对燃油喷射器、相关联的燃油组件等的损害以及引擎失灵。在此滤清系统中,如果未安装有滤清器滤筒,那么完全阻止燃油流到引擎,或准许不足以允许引擎操作的量的燃油流到引擎,且需要使用经适当设计的滤清器滤筒,以便准许足够的燃油流动用于引擎操作。
一种滤清器滤筒为具有内滤清器和外滤清器的滤清器套滤清器设计。在一个实施例中,例如破碎筋条的机构将所述外滤清器的上端板与所述内滤清器的上端板连接,以防止组装内滤清器和外滤清器之后其间的相对轴向和径向移动。内滤清器与外滤清器之间的相对轴向或径向运动可导致有时被视为低质量滤清器的喀啦噪声。所述筋条(例如)形成于所述外滤清器的所述上端板的内部表面上,且所述筋条啮合所述内滤清器的所述上端板的外周边。当将内滤清器安装到所述外滤清器中时,所述筋条中的一者或一者以上破碎,从而以防止相对轴向和径向移动的方式确保所述滤清器之间的啮合。
外滤清器形成外滤清器组合件,其包含围绕中心轴安置的滤清媒介。所述滤清媒介包含上端和底端,上端板连接到上端,且底端板连接到底端。上端板包含大体上圆形的水平板、从所述板向下延伸的凸缘以及连接到所述凸缘的大体上水平的环。所述环包含附接到滤清媒介的上端的底表面。另外,凸缘包含内部表面和连接到所述内部表面的多个可变形筋条。
附图说明
图1是在滤清器外壳中包含滤清器滤筒的滤清器组合件的截面图。
图2是盖被移除以展示外壳的内部的滤清器外壳的透视图。
图3是滤清器滤筒的详细横截面图。
图4是外滤清器上端板的横截面图。
图5是内滤清器上端板的透视图。
图6A和图6B分别是内滤清器下端板的透视图和侧视横截面图。
图7是外滤清器下端板的横截面图。
具体实施方式
2007年7月19日申请且标题为“具有限流阀的立管和滤清器滤筒(Standpipe With Flow Restriction Valve,and Filter Cartridge)”的第11/780,176号美国专利申请案中的揭示内容以全文引用的方式并入本文中。
图1说明滤清器组合件10,例如燃油滤清器组合件,其既定对流体(例如柴油)进行滤清,且在流体到达受保护系统(例如燃油喷射泵和燃油喷射器)之前,将水从流体中移除。此描述内容在下文中将把所述流体描述为燃油。然而,将认识到,本文所描述的概念可用于其它流体。另外,在适当的情况下,本文所描述的概念可用于将除水之外的污染物从流体中移除。而且,在适当的情况下,本文所描述的概念中的一者或一者以上可应用于对其它类型的流体(例如润滑剂、水和其它液体,以及空气)进行滤清的其它类型的滤清器组合件。
组合件10包含滤清器外壳12,其经设计以将滤清器滤筒14接纳在其中,以对流体进行滤清。滤清器外壳12包含外壳主体,其具有侧壁16和端壁18。侧壁16和端壁18界定滤清器滤筒空间20,其足够大以将滤清器滤筒14接纳在其中,其中端壁18形成空间20的封闭端。外壳主体具有大体上与端壁18相对的开口端,其中开口端在使用中由封闭空间20的盖22封闭。外壳主体还包含:入口开口24(图2),待滤清的燃油穿过所述入口开口24进入空间20;以及出口26(将其说明为从端壁18延伸),燃油穿过出口26到达引擎。将认识到,滤清器外壳12可具有除本文所描述的配置之外的其它配置。
呈立管30的形式的流体通道部件紧固到端壁18,且朝开口端和帽22向上延伸到空间20中。在所说明的实施例中,立管30从其连接到端壁18的端部32到其尖端通常是中空的,从而界定内部流道36。流道36与出口26连通,使得进入立管30的燃油可从立管流动,且流动到到达引擎的出口26中。立管30安置在外壳12中,外壳12具有中心轴A-A。在一些实施例中,外壳12的轴A-A可不在外壳的正中心。
立管30可具有若干横截面形状,例如椭圆形或圆形。第6,884,349号美国专利中和第11/780,176号美国专利申请案中揭示椭圆形立管的实例。
限流阀50安置在立管30的尖端处,以控制燃油流入立管中。阀50可在未安装滤清器滤筒14时或在安装了不正确的滤清器滤筒时,阻止燃油流入立管中。当安装了滤清器滤筒14或其它经适当设计的滤清器滤筒时,滤清器滤筒经设计以便以使阀不阻止燃油流入立管中的方式与阀相互作用。第6,884,349号美国专利中和第11/780,176号美国专利申请案中揭示以此方式操作的阀的实例。
参看图1到图3,将滤清器滤筒14说明为具有内滤清器60和外滤清器62的滤清器套滤清器类型。内滤清器60经设计以在滤筒14的组装期间与外滤清器62搭扣配合连接,以形成一体式单元。
内滤清器60包含:滤清媒介环64;上端板66,其紧固到媒介64的上端;以及下端板68,其紧固到媒介64的底端。同样,外滤清器62包含:滤清媒介环70;上端板72,其紧固到媒介70的上端;以及下端板74,其紧固到媒介70的底端。端板66、68、72、74由合适的材料(例如塑料)形成。
燃油中可能包含不同形式的水,包含自由水(例如小水滴)和乳化水。优选的是,滤清媒介70经设计以使得当燃油从外部进入滤清器时,自由水最初被去除。自由水无法渗透媒介70,且实质上保留在滤清器外部。
媒介70还聚结大多数乳化水,并使现已聚结的水与燃油分离。媒介70还将软性和固体污染物从燃油去除。水(比燃油重)沉到滤清器滤筒14的底部,且通过开口排到外壳12的基座处的水收集区域。到燃油与媒介64接触时,大部分水已被分离,且在燃油进入滤清器滤筒的中心之前,媒介64将微粒从燃油滤除。媒介64还将剩余的水从燃油去除,且防止水进入媒介64。经滤清的燃油接着进入立管30,且流到出口26,通向下游的受保护组件,例如燃油泵。
滤清媒介64的外侧大体上面向滤清器62的滤清媒介70的内部,其中媒介环64的内侧界定滤清器滤筒14的干净或经滤清燃油侧,且媒介70的外侧界定脏污或未经滤清燃油侧,借此滤清器滤筒经配置以用于从外侧进来的流。在适当的情况下,本文所描述的概念可应用于从内侧出去类型的流的滤清器滤筒。
如图3和图4中所说明,上端板72包含第一大体上圆形的水平板80。凸缘82从板80向下延伸,且大体水平的环84在凸缘82的端部中间连接到凸缘82,且从所述凸缘向外延伸。环84的底表面(例如)使用粘合剂或使用热量以将环84熔合到滤清媒介来合适地附接到滤清媒介70的上端。
板80和凸缘82界定如图3中所示接纳内滤清器60的端部的中空区域86。这准许使用较长的内滤清器来增加用于滤清的滤清媒介的量。可变形筋条88连接到区域86内的端板72的内部,在板80的内部表面与凸缘82的内部表面之间延伸。当内滤清器60安装到外滤清器62中时,上端板66啮合筋条88。继续的安装导致筋条88破碎,从而确保上端板66与上端板72之间的紧密的径向和轴向连接,以防止在组装滤清器60和62时在滤清器60的上端与上端板72之间发生相对轴向和径向移动。这防止在组装滤清器60、62之后在内滤清器与外滤清器之间发生相对轴向和径向运动。相对运动可导致有时被察觉为低质量滤清器的喀啦噪声。然而,如下文将描述,内滤清器60可相对于外滤清器62旋转。
参看图1和图4,板80的边缘延伸经过凸缘82以形成圆周唇缘90。提供用于经由端板72将盖22连接到滤清器滤筒14的机构。明确地说,多个弹性指状物92从盖22向下突出。每一指状物92包含放大端94,指状物92借助于放大端94搭扣配合在唇缘90上。盖22还包含内部螺纹(未图示),其与形成于侧壁16的上端的外部螺纹(未图示)啮合,盖22可借助于所述外部螺纹旋拧到外壳主体上。
在使用中,在将滤清器滤筒14插入到外壳中之前,可将滤清器滤筒14连接到盖22,其后将盖22旋拧到侧壁16上。指状物92可相对于唇缘90的外边缘滑动,以允许盖22相对于上端板72而旋转。或者,可首先将滤筒14安装在外壳中,且其后将盖22经由指状物92连接到滤筒,且将盖22旋拧到壁16上。通过拧松所述盖且从外壳一起提起盖和滤筒14来进行盖22的移除。随着盖22向上提起,指状物92的端部94啮合唇缘90,从而导致滤筒14也被向上提起。接着可通过手动使指状物92的端部向上偏斜以从唇缘90脱离,来从盖22移除滤筒14。
如果需要的话,可将把手附接到板80的上表面,以促进滤筒14的操纵,例如将滤筒从外壳提起。然而,唇缘90还提供用以允许用户抓住滤筒14且将其从外壳提起的构件。因此,把手是任选的。
转向图3和图5,内滤清器60的上端板66包含大体上圆形的水平板110。板110包含周边部分112,其(例如)使用粘合剂或使用热量以将部分112熔合到滤清媒介来合适地附接到滤清媒介64的上端。销114从板110的中心向下突出。销114经设计为以第6,884,349号美国专利中和第11/780,176号美国专利申请案中所描述的方式与阀50相互作用。销114经由向销114提供加固的四个加固筋条116连接到板110。
保护性裙套118从板110向下延伸,且环绕销114和筋条116。将裙套118说明为从一端到另一端为大体上实心的,且裙套118的基座120连接到板110且连接到筋条116的端部。如果认为适当的话,可在裙套118中提供孔或其它流动增强构件,以促进燃油流动经过裙套且进入立管30中。
图3、图6A和图6B中说明内滤清器60的下端板68。端板68包含大体上环形的水平板130,其(例如)使用粘合剂或使用热量以将板130熔合到滤清媒介来合适地附接到滤清媒介64的底端。在板130的中心处形成立管孔132,其经配置以允许立管30通过。在所说明的实施例中,孔132的形状类似于立管30的形状,例如椭圆形。然而,如果立管具有不同形状,例如圆形,那么孔132的形状(例如圆形)可类似于立管的形状。
密封支撑件134(例如凸缘)从板130向下延伸,用于支撑密封件138(在图3中可见),其经设计以在安装滤清器滤筒时与立管30的外侧表面密封。支撑件134可围绕孔132的整个周边或仅围绕周边的多个部分延伸。在所说明的实施例中,密封支撑件134包括:多个间隔开的突出部135,其连接到板130的底表面;以及环形凸耳136,其位于突出部135的基座处,用于支撑密封件138的底部。
密封件138可具有适合与立管的外侧密封的任何形状。举例来说,在椭圆形立管的情况下,密封件可为椭圆形;对于圆形立管,密封件可为圆形。另外,密封件138可以任何合适方式紧固到支撑件134。举例来说,密封件138可通过过盈配合、粘合剂等紧固到支撑件134。
多个柔性连接臂142在其外边缘附近连接到板130的底部,且以角度α(例如20度)从板130向下延伸。在所说明的实例中,臂142可围绕板以相等间隔定位,但间距可不相等。另外,在所说明的实施例中,存在四个臂142,但可使用较大或较小数目的臂142。臂142每一者延伸一角度,使得臂的端部144径向定位超过板130的外边缘距离“d”(图6B)。臂142还有助于在滤清媒介64、70之间形成间隙。
臂142用于有助于将内滤清器60的下端板68连接到外滤清器62的下端板74。图3和图7中所说明的端板74包含大体上环形的水平板150,其(例如)使用粘合剂或使用热量以将板150熔合到滤清媒介,来合适地附接到滤清媒介70的底端。板150环绕孔152,内滤清器60可穿过孔152插入外滤清器62中。孔152由凸缘154界定,凸缘154围绕孔152的整个周边从板150向下延伸,以有助于界定所述孔。
向内延伸的凸耳156形成于凸缘154的基座处。凸耳156形成承座以在其上接纳内滤清器60的下端板68的臂142的端部,如图3中所见。由臂142的端部形成的外径优选大于凸耳156的内边缘的内径,使得臂142随着内滤清器60插入外滤清器62中而向内压缩。一旦臂142的端部完全离开凸耳156,端部144就向外弹到图3中所示的位置。因此,臂142、凸缘154和凸耳156的设计在滤清器60、62之间形成搭扣配合连接。破碎筋条88和搭扣配合连接准许外滤清器62与内滤清器60之间围绕中心轴A-A的相对旋转运动,以准许开口132与立管30对准。
参看图7,切口158围绕下端板74的凸缘154的外周边形成。切口158在其中接纳密封件160(图3),其经设计以密封外壳的侧壁16的内部表面,如图1所示。
滤清器滤筒14以第6,884,349号美国专利和第11/780,176号美国专利申请案中所描述的方式与阀50相互作用且致动阀50。然而,本文所描述的概念可以其它方式且在除燃油滤清之外的技术中使用。
本发明可在不脱离本发明的精神或新颖特征的情况下以其它形式体现。本申请案中所揭示的实施例在所有方面都被视为说明性而非限制性的。本发明的范围由所附权利要求书而不是由前面的描述内容指示;且在权利要求书的均等物的意义和范围内的所有改变都既定包含在本发明中。
Claims (9)
1.一种滤清器滤筒,其包括:
外滤清器,其包含:第一滤清媒介;塑料形成的第一端板,其连接到所述第一滤清媒介的端部;以及塑料形成的第二端板,其连接到所述第一滤清媒介的相对端,所述外滤清器包含中心轴;
内滤清器,其包含:第二滤清媒介;塑料形成的第一端板,其连接到所述第二滤清媒介的端部;以及塑料形成的第二端板,其连接到所述第二滤清媒介的相对端,其中所述内滤清器的大小经足以至少部分地被纳入所述外滤清器内;
第一机构,其将所述外滤清器的所述第一端板与所述内滤清器的所述第一端板相互连接,以防止其间的相对径向和轴向移动;以及
第二机构,所述第二机构将所述外滤清器的所述第二端板与所述内滤清器的所述第二端板相互连接。
2.根据权利要求1所述的滤清器滤筒,其中所述第一机构包括多个破碎筋条。
3.根据权利要求2所述的滤清器滤筒,其中所述多个破碎筋条一体形成于所述外滤清器的所述第一端板上,且所述破碎筋条啮合所述内滤清器的所述第一端板的外周边边缘。
4.根据权利要求2所述的滤清器滤筒,其中所述外滤清器的所述第一端板包含:大体上圆形的水平板、从所述水平板向下延伸的凸缘以及连接到所述凸缘的大体上水平的环;所述凸缘包含内部表面,且所述多个破碎筋条连接到所述凸缘的所述内部表面和所述水平板的内部表面。
5.根据权利要求4所述的滤清器滤筒,其中所述大体上水平的环包含附接到所述第一滤清媒介的端部的底表面。
6.根据权利要求2所述的滤清器滤筒,其中所述多个破碎筋条中的至少一者发生形变。
7.根据权利要求1所述的滤清器滤筒,其中所述内滤清器包含与所述外滤清器的所述中心轴同轴的轴。
8.一种用于滤清器滤筒的外滤清器组合件,所述滤清器滤筒由所述外滤清器组合件和内滤清器组合件构造,所述外滤清器组合件包括:
滤清媒介,其围绕中心轴安置,所述滤清媒介包含上端和底端;
上端板,其包含板、从所述板向下延伸的凸缘以及连接到所述凸缘的大体上水平的环,所述板、所述凸缘和所述大体上水平的环由塑料形成;所述凸缘包含内部表面,所述大体上水平的环包含附接到所述滤清媒介的所述上端的底表面;且多个可变形破碎筋条连接到所述凸缘的所述内部表面;以及
塑料形成的底端板,其连接到所述滤清媒介的所述底端,所述底端板包括将所述底端板连接到所述内滤清器组合件的端板的形成的连接机构。
9.根据权利要求8所述的外滤清器组合件,其中所述上端板的所述板为大体上圆形的且大体上水平的。
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