CN112145274A - 一体式真空分层保温排气管 - Google Patents

一体式真空分层保温排气管 Download PDF

Info

Publication number
CN112145274A
CN112145274A CN202011070908.1A CN202011070908A CN112145274A CN 112145274 A CN112145274 A CN 112145274A CN 202011070908 A CN202011070908 A CN 202011070908A CN 112145274 A CN112145274 A CN 112145274A
Authority
CN
China
Prior art keywords
heat
exhaust
vacuum
preservation
stainless steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011070908.1A
Other languages
English (en)
Inventor
楼狄明
唐远贽
张允华
房亮
石秀勇
谭丕强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanchang Intelligent New Energy Vehicle Research Institute
Original Assignee
Nanchang Intelligent New Energy Vehicle Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanchang Intelligent New Energy Vehicle Research Institute filed Critical Nanchang Intelligent New Energy Vehicle Research Institute
Priority to CN202011070908.1A priority Critical patent/CN112145274A/zh
Publication of CN112145274A publication Critical patent/CN112145274A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
    • 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
    • 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
    • F01N13/14—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 having thermal insulation
    • F01N13/141—Double-walled exhaust pipes or housings
    • F01N13/146—Double-walled exhaust pipes or housings with vacuum in the space between both walls
    • 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
    • F01N13/14—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 having thermal insulation
    • F01N13/148—Multiple layers of insulating material
    • 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
    • F01N13/16—Selection of particular materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • 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
    • F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure sensor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Silencers (AREA)

Abstract

本发明公开了一体式真空分层保温排气管，发动机与排气管（1）连接，所述排气管（1）从内向外依次分为三层，最内层为排气内管（103），中间层为保温套（101），最外层真空不锈钢保温壳体（102），所述保温套（101）覆设在所述排气内管（103）外，最外层由真空不锈钢保温壳体（102）封装成一体，真空不锈钢保温壳体（102）上设有压差传感器（2），用以监测不锈钢保温壳体（102）的内外压差，预警真空保温状态。本发明通过设置多层保温装置实现了发动机排气保温及驾驶舱隔热，提高废气后处理装置的入口端排气温度，提升了热管理性能及后处理催化转化效率，有效降低尾气污染物排放；并监测不锈钢保温壳体（102）的工作状态。

Description

一体式真空分层保温排气管
技术领域
本发明属于汽车零部件技术领域，尤其涉及一体式真空分层保温排气管。
背景技术
车辆的排气热管理一直是排放控制的关键技术，其难点在于车辆冷车启动或低负荷情况下进入选择性催化还原装置SCR、颗粒捕集器DPF等后处理装置的的排气温度过低使得后处理***无法达到其催化转化效率的最佳工作区间，而从发动机排气至后处理前端的这一段排气行程是排气热量损失、温度下降的主要部分。因此，通过保温隔热措施减少发动机至后处理的排气温度损失是提升排气热管理性能和后处理催化转化效率的重要方法。
现有的汽车排气管保温隔热装置基本上都用于局部防护，以防止排气管的高温烤坏汽车底盘上布置的遇高温容易损坏或变形的零件，对排气管的保温性要求不高，因此都是先用防火布与隔热棉做成板块状棉垫，然后包裹住排气管，用卡箍固定，只用防火棉垫包裹排气管的方法对排气管包裹不严密，并且保温棉垫没有受到保护，容易刮碰损坏和被泥水油污污染，外观也不好看。还有一些排气管包裹材料内层和外层材料为高硅氧布，中间层为陶瓷纤维，由于使用高硅氧布，其价格高，所以制作成本较高，并且其装配程序复杂，装配速度慢，生产效率低。
2011年11月30日公布的专利号为CN102264969A，名称为安装垫和具有该安装垫的污染控制装置包括玄武岩材料制的安装垫，并非保温装置，使用范围包括但不限于汽车排气管，安装方式为可拆装外壳部件，只具有单层材料保温效果，安装后密闭及保温可靠性有待改善。
发明内容
本发明的目的在于克服现有的排气管单层材料保温效果差，安装后密闭及保温可靠性有待改善的不足，提供一种保温密封效果好的一体式保温排气管。
本发明的技术方案是：排气管作为连接件与发动机连接，或作为后处理***中间保温相连件，一体式真空分层保温排气管，排气管1从内向外依次分为三层，最内层为排气内管103，中间层为保温套101，最外层真空不锈钢保温壳体102，所述保温套覆设在所述排气内管103外，最外层由真空不锈钢保温壳体102封装成一体，真空不锈钢保温壳体102上设有压差传感器2，用以监测真空不锈钢保温壳体102的内外压差，预警真空保温状态，可以随时监测管道动态失效，即漏气检测。不锈钢保温壳体102将保温套101紧紧包裹，形成一个一体式有机的多层保温层。
优选地，保温套101为编织式玄武岩纤维，其厚度为3-5mm；玄武岩纤维主要成分为二氧化硅纤维编织，该材料具有高强度，永久阻燃性，短期耐温在1000℃以上，可长期在760℃温度环境下使用，且包裹厚度薄，无毒无害，可实现间隙较小情况的包裹。
更加优选地，压差传感器2与所述ECU3连接，所述ECU3和所述声光预警装置4相连接，所述声光预警装置4进行失效声光预警，过程如下：当排气体积流量大于一定值时，开始下一步，即发动机开始工作，废气从发动机排气管1中排出，通过一体式真空分层保温排气管进入催化净化箱，此时排气管1中通过全部发动机废气，漏气检测开始。否则，发动机无废气排出，结束漏气检测；当压差传感器2压差信号有较大的变化，即，信号电压随转速的升高而升高，上游气压高、下游气压低，产生压差，则判断为不锈钢保温壳体102漏气，ECU3发出指令让声光预警装置4进行声光预警提示。否则，判断不锈钢保温壳体102工作正常，密封性良好。
与现有技术相比，本发明具备以下有益效果：（1）利用其自身S型弯曲的形状及双层隔热保温装置作用能尽可能将排气温度下降幅度减小到最低，使得尾气在较高温度状态进入后处理装置，提升后处理尾气温度，提高后处理催化转化效率，降低排放，同时利用隔热作用，减少高温沿管壁向驾驶舱传递，提升驾驶乘坐舒适性。
（2）通过压差传感器2监测不锈钢保温壳体102的动态失效情况，即漏气检测，并在发现漏气的情况下，由声光预警装置4进行声光报警。
（3）通过设置多层保温装置实现了发动机排气保温及驾驶舱隔热，提高废气后处理装置的入口端排气温度，提升了热管理性能及后处理催化转化效率，有效降低尾气污染物排放。
附图说明
图1为本发明一体式真空分层保温排气管示意图；
图2为本发明一体式真空分层保温排气管A处径向截面示意图。
图3为本发明压差传感器3的工作流程图。
附图标记：1、排气管；2、压差传感器；3、ECU；4、声光预警装置；101、保温层；102、不锈钢真空保温壳体；103、排气内管。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1和图2，本发明的技术方案是：一种发动机排气管，发动机与排气管连接，其特征在于：所述排气管从内向外依次分为三层，最内层为排气内管103，中间层为保温套101，最外层为真空不锈钢保温壳体102，所述保温套101覆设在所述排气内管103外壁，最外层由真空不锈钢壳体102封装成一体。
保温套101为编织式玄武岩纤维，厚度为3-5mm，玄武岩纤维主要成分为二氧化硅纤维编织，该材料具有高强度，永久阻燃性，短期耐温在1000℃以上，可长期在760℃温度环境下使用，且包裹厚度薄，可实现间隙较小情况的包裹。
不锈钢真空保温壳体102将保温套紧紧包裹，形成一个有机的保温层，增强排气管的保温效果。
排气管1整体呈S型弯曲，管道利用其自身S型弯曲的形状能进一步将排气温度下降幅度减小到最低。
如图3所示，压差传感器2用以进行判断不锈钢保温壳体102的动态失效即是否漏气，其工作步骤如下：当排气体积流量大于一定值时，开始下一步，即发动机开始工作，废气从发动机排气管1中排出，通过一体式真空分层保温排气管进入催化净化箱，此时排气管1中通过全部发动机废气，漏气检测开始。否则，发动机无废气排出，结束漏气检测；当压差传感器2压差信号有较大的变化，即，信号电压随转速的升高而升高，上游气压高、下游气压低，产生压差，则判断为不锈钢保温壳体102漏气，ECU3发出指令让声光预警装置4进行声光预警提示。否则，判断不锈钢保温壳体102工作正常，密封性良好。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (4)

1.一体式真空分层保温排气管，其特征在于：排气管（1）从内向外依次分为三层，最内层为排气内管（103），中间层为保温套（101），最外层真空不锈钢保温壳体（102），所述保温套覆设在所述排气内管（103）外，最外层由真空不锈钢保温壳体（102）封装成一体，真空不锈钢保温壳体（102）上设有压差传感器（2），用以监测真空不锈钢保温壳体（102）的内外压差，预警真空保温状态。
2.根据权利要求1所述的一体式真空分层保温排气管，其特征在于：所述保温套（101）为编织式玄武岩纤维套。
3.根据权利要求1所述的一体式真空分层保温排气管，其特征在于：所述排气管（1）整体呈S型弯曲。
4.根据权利要求1所述的一体式真空分层保温排气管，其特征在于：还包括ECU（3）和声光预警装置（4），所述压差传感器（2）与所述ECU（3）连接，所述ECU（3）与所述声光预警装置（4）相连接，所述声光预警装置（4）进行失效声光预警。
CN202011070908.1A 2020-10-09 2020-10-09 一体式真空分层保温排气管 Pending CN112145274A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011070908.1A CN112145274A (zh) 2020-10-09 2020-10-09 一体式真空分层保温排气管

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011070908.1A CN112145274A (zh) 2020-10-09 2020-10-09 一体式真空分层保温排气管

Publications (1)

Publication Number Publication Date
CN112145274A true CN112145274A (zh) 2020-12-29

Family

ID=73952577

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011070908.1A Pending CN112145274A (zh) 2020-10-09 2020-10-09 一体式真空分层保温排气管

Country Status (1)

Country Link
CN (1) CN112145274A (zh)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2611722Y (zh) * 2002-12-18 2004-04-14 齐克先 多屏真空复合防腐保温直埋蒸汽管
US20090184100A1 (en) * 2006-04-25 2009-07-23 Tadahiro Ohmi Heat resisting vacuum insulating material and heating device
CN102042068A (zh) * 2009-10-20 2011-05-04 中川产业株式会社 车辆排气管用保温体及其制造方法
CN202031695U (zh) * 2011-04-20 2011-11-09 山东泰山钢铁集团有限公司 降低汽车排气管热端管热影响的套管
CN103982285A (zh) * 2014-06-04 2014-08-13 潍坊倍力汽车零部件有限公司 基于scr尾气后处理技术的发动机排气管
CN106640398A (zh) * 2016-12-26 2017-05-10 天津大学 一种缩短三效催化转化器起燃时间的装置及控制方法
CN109441605A (zh) * 2018-12-20 2019-03-08 盐城创和新型材料有限公司 一种用于汽车的***隔热罩
CN208885374U (zh) * 2018-09-03 2019-05-21 上汽通用汽车有限公司 一种汽车排气管及车体
CN211397703U (zh) * 2019-12-03 2020-09-01 浙江创格科技有限公司 一种双层隔热型排气管隔罩总成

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2611722Y (zh) * 2002-12-18 2004-04-14 齐克先 多屏真空复合防腐保温直埋蒸汽管
US20090184100A1 (en) * 2006-04-25 2009-07-23 Tadahiro Ohmi Heat resisting vacuum insulating material and heating device
CN102042068A (zh) * 2009-10-20 2011-05-04 中川产业株式会社 车辆排气管用保温体及其制造方法
CN202031695U (zh) * 2011-04-20 2011-11-09 山东泰山钢铁集团有限公司 降低汽车排气管热端管热影响的套管
CN103982285A (zh) * 2014-06-04 2014-08-13 潍坊倍力汽车零部件有限公司 基于scr尾气后处理技术的发动机排气管
CN106640398A (zh) * 2016-12-26 2017-05-10 天津大学 一种缩短三效催化转化器起燃时间的装置及控制方法
CN208885374U (zh) * 2018-09-03 2019-05-21 上汽通用汽车有限公司 一种汽车排气管及车体
CN109441605A (zh) * 2018-12-20 2019-03-08 盐城创和新型材料有限公司 一种用于汽车的***隔热罩
CN211397703U (zh) * 2019-12-03 2020-09-01 浙江创格科技有限公司 一种双层隔热型排气管隔罩总成

Similar Documents

Publication Publication Date Title
JP3294036B2 (ja) ハニカム触媒コンバータ
US4345430A (en) Automotive catalytic converter exhaust system
JP4363211B2 (ja) 内燃機関の排気浄化装置の異常検出装置
US5163289A (en) Automotive exhaust system
RU2414605C2 (ru) Сотовый элемент с по меньшей мере частично керамической структурой и с отверстием под датчик и способ изготовления такого сотового элемента
CN104564252B (zh) 一种柴油车尾气后处理装置
CN110630362B (zh) 一种汽车尾气净化催化器
US5849250A (en) Auxiliary catalytic converter having a back pressure relief device
CN112145271A (zh) 一种柴油机排气***一体化保温装置
KR20020076250A (ko) 촉매 컨버터 및 그 제조방법
CN112145274A (zh) 一体式真空分层保温排气管
CN112127969A (zh) 一种非道路移动机械复合再生颗粒后处理装置
JPH09500434A (ja) 一次配管付き排気コレクタ
CN206016910U (zh) 一种汽车***
JP2979845B2 (ja) 内燃機関の排気管
CN208686456U (zh) 一种汽车尾气管用***
CN101245725B (zh) 内燃机废气净化处理及消声装置
CN201865738U (zh) 管壳共体式排气歧管装置
CN207934977U (zh) 一种车用催化器的进气端保温结构
CN215256417U (zh) 叉车排气***
CN212202184U (zh) 一种具有节能环保结构的***
CN214118297U (zh) 一种柴油发动机尾气净化装置
JPS60198320A (ja) 自動二輪車用多気筒エンジンの排気装置
CN219492369U (zh) 一种天然气紧耦合后处理装置
CN219809062U (zh) 一种降噪型排气管密封环

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20201229

RJ01 Rejection of invention patent application after publication