CN101553650A - 废气流量均衡器 - Google Patents
废气流量均衡器 Download PDFInfo
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- F01N3/28—Construction of catalytic reactors
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- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2807—Metal other than sintered metal
- F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
- F01N3/2814—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates all sheets, plates or foils being corrugated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
- F01N2510/068—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings
- F01N2510/0682—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings having a discontinuous, uneven or partially overlapping coating of catalytic material, e.g. higher amount of material upstream than downstream or vice versa
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Abstract
本发明涉及安装在排气歧管内的废气流量均衡器,和涉及其中安装有这样的均衡器的排气歧管。本发明还涉及废气流量均衡器和排气歧管的制造和使用。按照本发明的废气流量均衡器(2)包括彼此交叉放置的起催化剂作用的金属波纹板(2f),用于至少在横向方向调整废气流量,所述波纹板的折痕的波纹方以一定角度朝向废气(G)的平均流向。
Description
技术领域
本发明涉及一种安装在排气歧管内的废气流量均衡器和安装有这样的均衡器的排气歧管。本发明还涉及废气流量均衡器以及排气歧管的制造和使用。
背景技术
废气处理中经常发生的问题是,废气管道内的废气流是不均匀的。这就引发废气净化和废气特性的测量两方面的问题,由此导致马达调节方面的问题。结果,设备操作的模型化也变得困难。已经有人试图通过构造单独的均衡器件来解决这个问题,其中所述均衡器件比如连接在催化剂的前面。单独的器件附加地引起管道内背压升高,由此部分地降低了马达的动力。这对于低动力马达在一定程度上是特别重要的。
发明内容
现在已经发明出了催化剂型废气流量均衡器,它对于它的整个体积非常高效地均衡废气管道内的废气流量。
为了实现这个目的,本发明的特征通过独立权利要求描述的特征进行限定。本发明的一些优选方案在其它的权利要求中列出。
按照本发明的废气流量均衡器是被安装在排气歧管内的均衡器,基本覆盖整个安装点的横截面。所述均衡器包括彼此交叉放置的起催化剂作用的金属波纹板,波纹板折痕的波纹方向以一定角度朝向平均废气流动方向,用于在横向方向均衡废气流动量。
因为由废气均衡器在排气管内产生的压力损失相对较低,所以它在使用时是具有益处的。这是由于这样的事实,即起催化剂作用的均衡器同时具有废气流量均衡器和催化剂的功能。
另外,所述均衡器的设计是特别简单、耐用的,因为它是由一个结构整体构成,而且能够有效地连接到排气歧管的壳体和/或作为一部分与壳体成为一体。
按照本发明的排气歧管流量均衡器还具有这样的优点,催化剂能够被放置在尽可能靠近马达的位置。这时,它的催化启动/点火是非常快的。
按照本发明的一个实施方案,均衡器的板的波纹方向相对于平均废气流动方向成5-90度,比如10-30度。要选择的安装角度取决于横向混合所需的效率大小。有可能的是,使混合最优或使压力损失最小化。在一些实施方案中,安装角度相对于平均废气流动方向比如为15-25度。这种均衡器产生高效的废气流量的内部混合,而同时对废气流量的流动阻力相对较小。此外,应当指出,按照本发明的均衡器同时具有催化剂的功能,在这种情况下,总的流动阻力优选特别的低。
按照本发明的废气流量均衡器还可以这样的方式实现,即安装角度沿着流动方向有变化。比如,有可能制造起催化剂作用的废气流量均衡器,它的安装角度沿着流动方向从25度到20度变化。结构上的方案因此能够用来使压力损失和/或流量均衡最优。
按照本发明的一个实施方案,废气流量均衡器具有多个区域,这些区域的催化涂层和/或孔数与其它区域不同。所述区域方位能够在一个、两个或三个方向实施。比如,有可能最优地制造废气流量均衡器,其中孔数在入口通道处更高,相应地,在入口通道之间的孔数更低,于是这种布置使得进一步改进废气流量的均衡。同样的布置也能够在横截面方向相对入口通道来实现。
所述区域的方位也能够相对涂层的密度来实现,这时,比如,在废气流动方向被从水平方向转变为在汽车的下方的情况中,更高含量的催化剂被集合到具有更高负荷的那些点,比如在入口通道的孔或均衡器的上表面。所述区域的方位还能够以这样的方式最优地实现,即不同的区域具有不同的催化剂。这种布置使得起催化剂作用的均衡器的调整操作具有极其通用的可能。
按照本发明的一个实施方案,所述排气歧管具有混合室,该混合室的壳体至少是排气歧管壳体的一部分。这样的混合室的制造是有益处的,因为它能够与排气歧管一起制造。所述混合室优选地放置在入口通道之间,这使得来自不同入口通道的废气流量部分地混合在一起。这种布置比如对燃烧的调节能够可靠地利用兰姆达传感器。另外,所述混合室使得废气流量的均衡通常更有效。
按照本发明的一个实施方案,排气歧管附加地具有与其连接的一个或多个催化剂,这些催化剂相对于气体流动方向被安装在废气流量均衡器后面的混合室内。比如,有可能制造这样的排气歧管,其具有在入口管内的起催化剂作用的废气流量均衡器和在连接部的单独的催化剂。该单独的催化剂可以不同于或者类似于本发明的废气流量均衡器。
按照本发明的一个实施方案,排气歧管另外具有一个或多个与其连接的附加均衡器。在一些实施方案中,有必要特别均匀地调整废气流量。所述单独的均衡器优选为网或粗的金属棉。单独的附加均衡器能够放置在实际的均衡器之前或之后。
按照本发明的均衡器良好地适用于各种场合。它可以用在使用各种燃料的马达和具有各种尺寸的不同场合。比如它可特别适合用在低动力的马达中,比如其汽缸的数量是2的马达。
附图说明
下面参照下列附图详细地描述本发明的一些实施例。
图1是排气歧管的截面图。
图2是另一排气歧管的截面图。
图3和4表示在排气歧管中的废气流停滞分布。
图5和6表示在排气歧管中的废气流的速度分布。
图7是排气歧管中的废气流区域。
具体实施方式
图1是排气歧管1,其具有安装到连接部7的排气歧管流量均衡器2。所述废气流量均衡器2包括彼此交叉放置的起催化剂作用的金属波纹板2f(如图所示),波纹板折痕的波纹方向以一定角度朝向废气G的平均流动方向,用于至少在横向方向均衡废气。排气歧管具有废气流量混合室4,该室的壳体4c构成歧管1壳体1c的一部分。废气G在排气歧管1内从入口通道3部分地通过混合室4流向废气流量均衡器2,并进一步流向出口通道5。
图2表示排气歧管1,其具有安装到连接部7和入口通道3的废气流量均衡器2,6。废气流量均衡器2包括彼此交叉放置的起催化剂作用的金属波纹板2f(如图所示),波纹板折痕的波纹方向以一角度朝向废气G的平均流动方向,用于至少在横向方向均衡废气流量。所述折痕的波纹方向相对于平均气流G方向成变化的角度,于是在排气歧管的中心处的所述角度小于在边缘处的角度。排气歧管具有废气流量混合室4,该室的壳体4c构成歧管1壳体1c的一部分。在排气歧管1内的废气G在入口通道3穿过排气歧管均衡器6,部分地流到混合室4和废气流量均衡器2,并进一步流到出口通道5。
图3和4表示在两个不同的排气歧管1内废气流量的停滞分布。在图3中,废气流量均衡器2被安装在连接部7的中心,而图4中,它被安装在连接部1C的底部。图5和6表示在两个不同的排气歧管1内的废气流速分布。在图5中废气流量均衡器2安装在连接部7的中心,而在图6中,它安装在连接部1C的底部。废气G在排气歧管1内从入口通道3部分地穿过混合室4,流向废气流量均衡器2,并进一步流向出口通道5。图3-6很好地表明,废气流量均衡器2已经使来自两个入口通道3的气体混合后产生的废气流量变化变均衡。
图7表示按照图3和5的废气流量均衡器1,它被安装在具有不同区域2A,2C的连接部7的中心,用于使废气G的负荷变均衡。废气G在排气歧管1内从入口通道3部分地穿过混合室4,流向废气流量均衡器2,并进一步流向出口通道5。区域2A的废气流速小于区域2C的流速,并相应地,对区域2A产生的底层含量小于对区域2C的含量。这种布置使得起催化剂作用的均衡器2的操作效率最优。
Claims (19)
1、一种待安装在排气歧管内的废气流量均衡器,其特征在于,所述废气流量均衡器(2)包括彼此交叉放置的起催化剂作用的金属波纹板(2f),用于至少在横向方向均衡废气流量,所述波纹板的折痕的波纹方向以一定角度朝向废气(G)的平均流向。
2、如权利要求1所述的废气流量均衡器,其特征在于,所述金属波纹板(2f)的折痕的波纹方向相对于废气(G)的平均流向成5-90度角。
3、如权利要求1或2所述的废气流量均衡器,其特征在于,所述金属波纹板(2f)的折痕的波纹方向相对于废气(G)的平均流向成10-30度角。
4、如前任一个权利要求所述的废气流量均衡器,其特征在于,所述废气流量均衡器(2)具有催化涂层彼此不同的区域(2A,2C)。
5、如前任一个权利要求所述的废气流量均衡器,其特征在于,所述废气流量均衡器(2)具有孔数彼此不同的区域(2A,2C)。
6、如前任一个权利要求所述的废气流量均衡器,其特征在于,所述金属波纹板(2f)折痕的波纹方向沿着流动方向(G)变化,比如从25度到20度。
7、如前任一个权利要求所述的废气流量均衡器,其特征在于,所述排气歧管(1)具有一个或多个废气流量混合室(4)。
8、如前任一个权利要求所述的废气流量均衡器,其特征在于,所述排气歧管(1)具有一个或多个废气流量混合室(4),该混合室的壳体(4c)是排气歧管(1)的壳体(1c)的至少一部分。
9、如前任一个权利要求所述的废气流量均衡器,其特征在于,所述排气歧管(1)具有附加地与其连接的一个或多个单独的催化剂。
10、如前任一个权利要求所述的废气流量均衡器,其特征在于,所述排气歧管(1)具有附加地与其连接的一个或多个单独的废气流量均衡器。
11、马达排气歧管,其特征在于,它包括一个或多个如权利要求1-10所述的废气流量均衡器(2)。
12、如权利要求11所述的排气歧管,其特征在于,一个或多个如权利要求1-10所述的废气流量均衡器(2)被安装在一个或多个入口室(3)内。
13、如权利要求11和12所述的排气歧管,其特征在于,一个或多个如权利要求1-10所述的废气流量均衡器(2)被安装在所述连接部(7)内。
14、如权利要求11-13所述的排气歧管,其特征在于,一个或多个如权利要求1-10所述的废气流量均衡器(2)被安装在出口通道(5)内。
15、如权利要求11-14所述的排气歧管,其特征在于,兰姆达传感器连接到所述排气歧管(1)。
16、一种用于制造待被安装在排气歧管内的废气流量均衡器的方法,其特征在于,通过将彼此交叉放置的金属波纹板(2f)彼此连接来制造废气流量均衡器(2)用于至少在横向方向使废气流量均衡,所述金属波纹板的折痕的波纹方向以一定角度朝向废气的平均流向。
17、一种制造排气歧管的方法,其特征在于,如权利要求1-10所述的一个或多个废气流量均衡器(2)被连接到所述排气歧管。
18、如权利要求1-10所述的废气流量均衡器的用途,其特征在于,所述废气流量均衡器(2)在使用燃料的马达中使用。
19、如权利要求11-15所述的排气歧管的用途,其特征在于,所述排气歧管(1)在使用燃料的马达中使用。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FI2006/000305 WO2008034933A1 (en) | 2006-09-20 | 2006-09-20 | Exhaust gas flow equalizer |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101553650A true CN101553650A (zh) | 2009-10-07 |
Family
ID=39200212
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2006800558859A Pending CN101553650A (zh) | 2006-09-20 | 2006-09-20 | 废气流量均衡器 |
CNA200780035061XA Pending CN101563530A (zh) | 2006-09-20 | 2007-09-20 | 废气流量调整器 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA200780035061XA Pending CN101563530A (zh) | 2006-09-20 | 2007-09-20 | 废气流量调整器 |
Country Status (5)
Country | Link |
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US (2) | US20100024405A1 (zh) |
EP (2) | EP2069618A4 (zh) |
CN (2) | CN101553650A (zh) |
RU (2) | RU2442901C2 (zh) |
WO (2) | WO2008034933A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106194374A (zh) * | 2014-11-26 | 2016-12-07 | 现代自动车株式会社 | 排气系统结构 |
CN115126580A (zh) * | 2021-03-25 | 2022-09-30 | 普瑞姆有限公司 | 排气/反应剂混合结构组件 |
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US8726643B2 (en) * | 2008-11-13 | 2014-05-20 | Donaldson Company, Inc. | Injector mounting configuration for an exhaust treatment system |
US8677738B2 (en) * | 2011-09-08 | 2014-03-25 | Tenneco Automotive Operating Company Inc. | Pre-injection exhaust flow modifier |
KR20200127370A (ko) * | 2019-05-02 | 2020-11-11 | 현대자동차주식회사 | 차량용 배기시스템 |
EP4245972A1 (en) | 2022-03-18 | 2023-09-20 | Winterthur Gas & Diesel Ltd. | Exhaust gas after treatment device |
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-
2006
- 2006-09-20 RU RU2009113241/06A patent/RU2442901C2/ru not_active IP Right Cessation
- 2006-09-20 WO PCT/FI2006/000305 patent/WO2008034933A1/en active Application Filing
- 2006-09-20 EP EP06794081A patent/EP2069618A4/en not_active Withdrawn
- 2006-09-20 US US12/442,311 patent/US20100024405A1/en not_active Abandoned
- 2006-09-20 CN CNA2006800558859A patent/CN101553650A/zh active Pending
-
2007
- 2007-09-20 US US12/442,281 patent/US20100024404A1/en not_active Abandoned
- 2007-09-20 WO PCT/FI2007/000235 patent/WO2008034941A1/en active Application Filing
- 2007-09-20 CN CNA200780035061XA patent/CN101563530A/zh active Pending
- 2007-09-20 RU RU2009113238/06A patent/RU2481479C2/ru not_active IP Right Cessation
- 2007-09-20 EP EP07823096A patent/EP2074293A4/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106194374A (zh) * | 2014-11-26 | 2016-12-07 | 现代自动车株式会社 | 排气系统结构 |
CN115126580A (zh) * | 2021-03-25 | 2022-09-30 | 普瑞姆有限公司 | 排气/反应剂混合结构组件 |
Also Published As
Publication number | Publication date |
---|---|
RU2481479C2 (ru) | 2013-05-10 |
EP2069618A4 (en) | 2010-12-01 |
EP2074293A4 (en) | 2010-12-08 |
CN101563530A (zh) | 2009-10-21 |
US20100024405A1 (en) | 2010-02-04 |
RU2009113241A (ru) | 2010-10-27 |
US20100024404A1 (en) | 2010-02-04 |
RU2442901C2 (ru) | 2012-02-20 |
WO2008034933A1 (en) | 2008-03-27 |
EP2069618A1 (en) | 2009-06-17 |
WO2008034941A1 (en) | 2008-03-27 |
EP2074293A1 (en) | 2009-07-01 |
RU2009113238A (ru) | 2010-10-27 |
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