CN109779758B - 微粒物质传感器隔热罩 - Google Patents
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- 239000013618 particulate matter Substances 0.000 title claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 239000011888 foil Substances 0.000 claims abstract description 4
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 3
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 3
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 3
- 239000000523 sample Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1445—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being related to the exhaust flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0656—Investigating concentration of particle suspensions using electric, e.g. electrostatic methods or magnetic methods
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
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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
- 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
- F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust apparatus
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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
- F01N2510/00—Surface coverings
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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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/05—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a particulate sensor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1466—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being a soot concentration or content
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0042—Investigating dispersion of solids
- G01N2015/0046—Investigating dispersion of solids in gas, e.g. smoke
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Abstract
一种用于微粒物质传感器的隔热罩包括铝箔外层和内层,该内层由包括52‑60%的SiO2、16‑25%的CaO和12‑16%的Al2O2的组合物制成。隔热罩形成为套接结构,并包括用于容纳微粒物质传感器的开口端。
Description
技术领域
本公开涉及一种用于微粒物质传感器的隔热罩。
背景技术
本部分提供和本公开有关的背景信息,其不必然是现有技术。
排气微粒物质传感器监测柴油机微粒过滤器(DPF)的效率。由于车辆制造限制,微粒物质传感器的传感器控制单元安装在非常靠近发动机排气管路的位置,并通常安装于在某些车辆运行条件下环境温度可达150℃的发动机室中。即使传感器耐高温,为了防止在极端高温下的过热损害,需要对传感器进行热保护。
发明内容
本部分提供本公开的简要的发明内容,且并不是本发明全部范围或所有特征的综合公开。
一种用于微粒物质传感器的隔热罩包括铝箔外层和内层,该内层由包括52-60%的SiO2、16-25%的CaO和12-16%的Al2O2的组合物制成。隔热罩形成为套接结构,并包括用于容纳微粒物质传感器的开口端。
通过此处提供的描述,进一步的适用领域将变得明显。本发明内容的描述和具体实例只是为了说明的目的,并不意为限制本公开的范围。
附图说明
此处描述的附图说明只是为了说明所选择实施例、并非说明所有可能的实现方式的目的,并不意图限制本公开的范围。
图1是根据本公开原理用于微粒物质传感器的隔热罩的透视图;
图2是示例性微粒物质传感器的透视图;
图3是拆卸状态下隔热罩和微粒物质传感器的顶部平面图;
图4是根据本发明公开原理组装在微粒物质传感器顶部之上的隔热罩的顶部平面图。
在附图的多个视图中,对应的附图标记指示对应部件。
具体实施方式
现在将参照附图更充分地描述示例性实施例。
提供示例性实施例以使得本公开将是彻底的,并且将向本领域的那些技术人员全面地传达保护范围。阐明了许多具体细节,如具体部件、装置和方法的实例,以提供本公开内容的实施例的彻底理解。对于本领域的技术人员显而易见的是,不需要使用特定细节,示例性实施例可以以多种不同形式具体实施,也不应被理解为限制本公开的范围。在一些示例性实施例中,未详细描述熟知的过程、熟知的设备结构和熟知的技术。
此处所用的术语仅用于描述特定示例性实施例,而不意在限制本发明。此处所用的单数形式“一个(a、an)”、“该(the)”也意为包括复数形式,除非本文明确表示并非如此。术语“包含”(comprises/comprising)、“包括(including)”和“具有(having)”是包含性的,因此确定所述特征、整体、步骤、运行、元件和/或部件的存在,但并不排除一个或多个其他特征、整体、步骤、运行、元件和/或部件的存在或增加。此处所述的方法步骤、顺序和操作不应被理解为必须按照所讨论或所示的具体次序进行,除非具体指明按次序进行。也应理解可使用附加的和可替代的步骤。
当元件或层被称为“在另一个元件或层上”、“与另一个元件或层接合”、“连接至另一个元件或层”或“与另一个元件或层联接”时,元件或层可以直接在另一个元件或层上、与另一个元件或层接合、连接至另一个元件或层或与另一个元件或层联接,或者可存在中间元件或层。相比之下,当元件被称为“直接在另一个元件或层上”、“”与另一个元件或层直接接合”、“直接连接至另一个元件或层”或“与另一个元件或层直接联接”时,则没有中间元件或层存在。用于描述元件之间关系的其他词汇应该以相似的方式理解(例如,“在……之间”与“在……之间直接”、“相邻”与“直接相邻”等。)。此处所使用的术语“和/或”包括任何及所有一个或多个相关所列项目的组合。
虽然在此可使用第一、第二和第三等术语来描述多个元件、部件、区域、层和/或段,这些元件、部件、区域、层和/或段不应受限于这些术语。这些术语可只用来区分一个元件、部件、区域、层或段与另一个元件、部件、区域、层或段。除非本文明确指示,此处使用的例如“第一”、“第二”和其他序数词术语不表示次序或顺序。因此,在不偏离示例性实施例教导的前提下,下面讨论的第一元件、部件、区域、层或段可称为第二元件、部件、区域、层或段。
例如“内”、“外”、“在……之下”、“在……下面”、“下部的”、“在……上面”、“上部的”诸如此类的空间相关术语此处可为了便于描述,用于描述如附图中所示的一个元件或特征件相对于另一个元件或特征件的关系。空间相关术语可意为除了附图所示方位之外,包括使用中或运行中的设备的不同方位。例如,如果图中的设备翻转,则被描述为“在其它元件或特征件下面”和“在其他元件或特征件之下”的元件可被定位为“在其他元件或特征件上面”。因此,示例性术语“在……下面”可包括上面和下面的方位。设备可被另外定位(旋转90度或在其它方位),应相应地理解此处使用的空间相关描述符。
参考图1-4,现将描述根据本公开的原理的用于微粒物质传感器12的隔热罩10。示例性微粒物质传感器12通常包括壳体14、探针16和电接口18。壳体14包括安装特征件20a,20b,安装特征件从壳体延伸以安装在车辆上。传感器控制单元设置于壳体14内,并且与探针16和电接口18通信以向表示微粒物质堆积水平的车辆控制单元提供信号。
隔热罩10包括由纯铝箔制成的外层22和由纤维玻璃“E”型制成的内层24,纤维玻璃“E”型含有包括52-60%的SiO2、16-25%的CaO、12-16%的Al2O2和8-20%的其他氧化物的组合物。隔热罩10可形成为套接结构,套接结构具有上部26和下部28以容纳微粒物质传感器12。隔热罩10可包括开口端30,开口端30用于容纳微粒物质传感器12的壳体14,微粒物质传感器12位于上部26和下部28之间。如图4所示,可设置附加开口32,电接口18和安装特征件20a可延伸通过附加开口32。上部26、下部28可切割为具有连接带34所需的形状,并沿接缝边缘36缝制在一起。如图4的组装状态所示,微粒物质传感器12可插入隔热罩10的开口端30中。在组装状态下,电接口18和安装特征件20可延伸穿过附加开口32,其中连接带34设置于电接口18和安装特征件20之间。
隔热罩10的铝外层22具有高反射性,以便使来自微粒物质传感器12的热量偏离。隔热罩的内层24不易燃烧,并且使微粒物质传感器12与热量隔绝。隔热罩10以低成本保护微粒物质传感器12免于高热量损坏。隔热罩10具有紧凑结构,为所有车辆应用提供改善的隔热质量。
上述实施例的描述已提供了说明和描述的目的。并不意图详尽或限制本公开。具体实施例的单个元件或特征件通常不局限于该具体实施例,而是在适用时可互换并且可用于所选的实施例中,即使未具体示出或描述也是如此。同样可以以多种方式变化。这样的变化并不被认为是偏离本公开,并且所有这样的修改都旨在包括在本公开范围之内。
Claims (2)
1.一种隔热罩和微粒物质传感器组件,包含:
所述微粒物质传感器,其包括壳体、从所述壳体延伸的探针和电接口;以及
所述隔热罩,其形成为套接结构并包括用于将所述微粒物质传感器的壳体容纳于所述套接结构内的开口端,其中所述隔热罩包括铝箔外层和内层,所述内层由包括52-60%的SiO2、16-25%的CaO和12-16%的Al2O2的组合物制成,其中所述套接结构包括第一层和第二层,所述第一层和所述第二层沿其侧边缘缝制在一起,所述套接结构进一步包含连接带,所述连接带延伸于所述第一层和所述第二层之间。
2.如权利要求1所述的隔热罩和微粒物质传感器组件,其中所述内层进一步包括除SiO2、CaO和Al2O2之外的8-20%的氧化物。
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US15/810,185 US10480440B2 (en) | 2017-11-13 | 2017-11-13 | Particulate matter sensor heat cover |
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US2571074A (en) * | 1948-11-02 | 1951-10-09 | Owens Corning Fiberglass Corp | Glass composition |
US5765332A (en) * | 1995-02-21 | 1998-06-16 | Minnesota Mining And Manufacturing Company | Fire barrier protected dynamic joint |
US6971258B2 (en) | 2003-12-31 | 2005-12-06 | Honeywell International Inc. | Particulate matter sensor |
US7216622B2 (en) * | 2004-10-01 | 2007-05-15 | Federal-Mogul World Wide, Inc. | Wiring harness with integrated component heat shield |
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US8975199B2 (en) * | 2011-08-12 | 2015-03-10 | Corsam Technologies Llc | Fusion formable alkali-free intermediate thermal expansion coefficient glass |
US9593618B2 (en) * | 2013-06-28 | 2017-03-14 | Cummins Ip, Inc. | Exhaust aftertreatment sensor assembly |
US9695081B2 (en) * | 2014-05-15 | 2017-07-04 | Corning Incorporated | Surface nitrided alkali-free glasses |
US10488315B2 (en) * | 2016-02-12 | 2019-11-26 | Ford Global Technologies, Llc | Methods and systems for prediction of sensor response time |
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