[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO2019128560A1 - 一种高抗热震性能的蜂窝陶瓷过滤器 - Google Patents

一种高抗热震性能的蜂窝陶瓷过滤器 Download PDF

Info

Publication number
WO2019128560A1
WO2019128560A1 PCT/CN2018/116703 CN2018116703W WO2019128560A1 WO 2019128560 A1 WO2019128560 A1 WO 2019128560A1 CN 2018116703 W CN2018116703 W CN 2018116703W WO 2019128560 A1 WO2019128560 A1 WO 2019128560A1
Authority
WO
WIPO (PCT)
Prior art keywords
outlet
inlet
passage
honeycomb ceramic
shock resistance
Prior art date
Application number
PCT/CN2018/116703
Other languages
English (en)
French (fr)
Inventor
宋锡滨
张兵
张曦
Original Assignee
山东国瓷功能材料股份有限公司
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 山东国瓷功能材料股份有限公司 filed Critical 山东国瓷功能材料股份有限公司
Publication of WO2019128560A1 publication Critical patent/WO2019128560A1/zh

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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs

Definitions

  • the present invention relates to the field of honeycomb ceramic filters, and more particularly to a ceramic ceramic filter having high thermal shock resistance.
  • Honeycomb ceramic wall flow filters remove carbon black from gasoline and diesel exhaust.
  • the conventional filter design has an imported honeycomb ceramic surface and an outlet honeycomb ceramic surface as an inlet and an outlet, and a porous wall separating the inlet and outlet. These interconnected walls divide the filter into an inlet channel (abbreviation: I) and an outlet channel (abbreviation: O).
  • I inlet channel
  • O outlet channel
  • the structure in which such an interval is blocked is like a chess board.
  • This design forces the exhaust gas to pass through the porous wall, allowing the particulate matter to deposit in the channel or wall.
  • the inlet and outlet channels have a square cross section of the same area. When the amount of carbon black reaches a certain level, the regeneration process takes place and the carbon black is burned off.
  • the thermal stress generated during the regeneration process causes great problems to the filter.
  • the thermal stress is large, it causes the filter to crack, which does not meet the environmental requirements.
  • One solution is to regenerate when the carbon load is low, but this will result in an increase in fuel consumption of the vehicle. Therefore, the method of reducing thermal stress is preferably through improvements in filter materials and design.
  • the angles of the inlet channel and the outlet channel perpendicularly or nearly perpendicular to the skin are made into an exit chamfer, thereby enhancing the thermal shock resistance.
  • the thermal stress in this area can be reduced, the thermal stress in other areas is not reduced.
  • not all of the diagonals are under high thermal stress. Therefore, some export chamfers are over-designed and cause an increase in filter back pressure.
  • the object of the present invention is to provide a honeycomb ceramic filter with high thermal shock resistance, which solves the problems of low thermal shock resistance and high back pressure of the honeycomb ceramic filter in the prior art.
  • the present invention provides a honeycomb ceramic filter having high thermal shock resistance, comprising: an inlet honeycomb ceramic surface and an outlet honeycomb ceramic surface, the inlet honeycomb ceramic surface and the outlet honeycomb ceramic The surface is provided with an inlet passage and an outlet passage, the inlet passage is in communication with the outlet passage, the outlet end of the inlet passage and the inlet end of the outlet passage are blocked, and the outlet passage has a square cross section With an exit chamfer or an exit fillet.
  • the radius of the outlet rounding is greater than 0.2 times the wall thickness between the inlet passage and the outlet passage, and is less than 0.35 Mm.
  • the length of the oblique side of the outlet chamfer ranges from 5% to 30% of the side length of the outlet passage.
  • the inlet passage has a square cross section.
  • the inlet passage is further provided with an inlet rounded corner.
  • the radius of the inlet rounded corner is less than 0.125 mm.
  • the radius of the inlet fillet is smaller than the radius of the exit fillet.
  • the honeycomb ceramic filter with high thermal shock resistance provided by the invention can reduce the thermal stress generated during the regeneration process by changing the structural design of the exit passage angle, and the honeycomb ceramic filter can be improved without affecting other performances. It can have better thermal shock resistance.
  • FIG. 1 is a structural view of an inlet honeycomb ceramic surface according to Embodiment 1 of the present invention.
  • FIG. 2 is a detailed view of the inlet honeycomb ceramic surface I of Figure 1;
  • FIG. 3 is a detailed view of the outlet passage II of Figure 2;
  • FIG. 4 is a structural view of an inlet honeycomb ceramic surface according to Embodiment 2 of the present invention.
  • FIG. 5 is a detailed view of the inlet honeycomb ceramic surface I of Figure 4.
  • Figure 6 is a detailed view of the outlet passage II of Figure 5;
  • Figure 7 is a structural view of an inlet honeycomb ceramic surface according to Embodiment 3 of the present invention.
  • Figure 8 is a detailed view of the inlet honeycomb ceramic surface I of Figure 7;
  • FIG. 9 is a detailed view of the outlet passage II of Figure 8.
  • Figure 10 is a structural view of an inlet honeycomb ceramic surface according to Embodiment 4 of the present invention.
  • FIG 11 is a detailed view of the inlet honeycomb ceramic surface I of Figure 10;
  • Figure 12 is a detailed view of the outlet passage II of Figure 11.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • an inlet honeycomb ceramic surface and an outlet honeycomb ceramic surface, the inlet honeycomb ceramic surface and the outlet honeycomb ceramic surface are respectively provided with an inlet passage and an outlet passage, the inlet passage and the inlet passage
  • the outlet passage is in communication, the outlet end of the inlet passage and the inlet end of the outlet passage are closed, the outlet passage has a square cross section and is provided with an outlet chamfer or an outlet rounded corner.
  • the filter has a skin (i.e., an outer side wall) and the filter may be circular, elliptical, or other shape.
  • the filter consists of a series of inlet and outlet channels formed by interconnected porous walls. The inlet and outlet channels extend all the way to the ends of the filter.
  • This filter is formed by an extrusion process.
  • the material of this filter is ceramic materials such as cordierite, silicon carbide, aluminum titanate, and mullite, but other extrudable materials such as glass, glass ceramics, plastics, and metals. .
  • the honeycomb ceramic filter has an inlet passage for the exhaust gas to enter, and an outlet passage for the tail gas to flow out.
  • the outlet end is blocked and the inlet end is not blocked; for the outlet channel, the inlet end is blocked and the outlet end is not blocked.
  • the inlet and outlet channels are separated by walls.
  • the filter has a porosity of between 20% and 70%.
  • the average pore size is between 5 and 50 microns, preferably between 10 and 30 microns.
  • Honeycomb ceramic filters have from 50 to 350 squares per square inch, preferably from 100 to 300 squares.
  • the wall thickness can range from 0.05 to 0.5 mm, preferably from 0.1 to 0.4 mm.
  • the angle of the outlet passage is designed.
  • thermodynamic strengthening is not necessary because they are under compressive stress during sudden changes in temperature during regeneration. To maintain a low back pressure, it is best to keep the square shape or only a small rounded corner.
  • the inlet passage has a square cross section and no rounded corners.
  • the outlet passage has a square cross section and is provided with an outlet fillet, and the radius of the outlet fillet is greater than 0.2 times the wall thickness between the inlet passage and the outlet passage, and is less than 0.35 mm.
  • the inlet passage has a square cross section with no rounded corners.
  • the outlet passage has a square cross section and is provided with an outlet chamfer having a bevel length ranging from 5% to 30% of the side length of the outlet passage.
  • the inlet passage has a square cross section and is provided with inlet fillets.
  • the outlet passage has a square cross section and is provided with an outlet fillet, and the radius of the outlet fillet is greater than 0.2 times the wall thickness between the inlet passage and the outlet passage and is less than 0.35 mm.
  • the inlet passage has a square cross section and is provided with inlet fillets.
  • the outlet passage has a square cross section and is provided with an outlet chamfer having a bevel length ranging from 5% to 30% of the side length of the outlet passage.
  • the present embodiment is substantially the same as the embodiment 3.
  • the same technical features as those of the embodiment 3 will not be described in the description of the embodiment, and only the difference between the embodiment and the embodiment 3 will be described.
  • the radius of the imported rounded corner is less than 0.125mm.
  • This embodiment is basically the same as the embodiment 4. For the sake of brevity of description, the same technical features as those of the embodiment 4 will not be described in the description of the embodiment, and only the difference between the embodiment and the embodiment 4 will be described.
  • the radius of the imported rounded corner is less than 0.125mm.
  • This embodiment is basically the same as the embodiment 5.
  • the same technical features as those of the embodiment 5 will not be described in the description of the embodiment, and only the difference between the embodiment and the embodiment 5 will be described.
  • the radius of the inlet fillet is smaller than the radius of the exit fillet.
  • the present embodiment is substantially the same as the embodiment 6.
  • the radius of the inlet fillet is smaller than the radius of the exit fillet.
  • the rounded corners of the above embodiments are formed by electric discharge machining or by grinding with an abrasive tool.
  • the honeycomb ceramic filter can have superior thermal shock resistance without affecting other properties.
  • the honeycomb ceramic filter with high thermal shock resistance provided by the invention can reduce the thermal stress generated during the regeneration process by changing the structural design of the exit passage angle, and the honeycomb ceramic filter can be improved without affecting other performances. It can have better thermal shock resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

一种高抗热震性能的蜂窝陶瓷过滤器，包括：进口蜂窝陶瓷面和出口蜂窝陶瓷面，进口蜂窝陶瓷面设有进口通道(1)，出口蜂窝陶瓷面设有出口通道(2)，进口通道(1)与出口通道(2)连通，进口通道(1)的出口端和出口通道(2)的进口端封堵，出口通道(2)的横截面为正方形，且设有出口倒角(5)或出口圆角(4)。

Description

一种高抗热震性能的蜂窝陶瓷过滤器 技术领域
本发明涉及蜂窝陶瓷过滤器领域，特别是涉及一种高抗热震性能的蜂窝陶瓷过滤器。
背景技术
蜂窝陶瓷壁流式过滤器可将汽油机及柴油机尾气中的碳黑去除。目前传统的过滤器设计，它有进口蜂窝陶瓷面和出口蜂窝陶瓷面作为进口和出口，以及将进出口隔开的多孔壁。这些相互连接的壁将过滤器分成了进口通道(简称：I)及出口通道(简称：O)。为捕捉碳黑及灰，进口通道的出口端被封堵，而出口通道的进口被堵。这样的间隔被堵的结构就象国际象棋的棋盘。这种设计可强迫尾气从多孔壁上通过，使得颗粒物沉积在通道里或壁上。通常，进出口通道具有同样面积的正方形截面。当碳黑量达到一定程度，再生过程发生，会烧去这些碳黑。
在实际应用中，再生过程中产生的热应力会对过滤器造成很大的问题。当热应力很大时，它会导致过滤器开裂，从而不能满足环保的需求。一种解决方案是在碳载少时再生，但这会导致车辆的油耗增加。因此，降低热应力的方法是最好通过过滤器材料及设计的改进。
目前，在选择的区域(20到70度之间)，进口通道及出口通道对角线垂直或接近垂直于皮肤的角做成出口倒角，从而起到加强抗热震强度的效果。虽然在此区域的热应力可以降低，但别的区域的热应力并没降低。此外，在此选择的区域，并不是所有的对角都在高热应力下。所以，有一些出口倒角是过分设计了，会造成过滤器背压的增高。
因此，需要搞清楚高热应力的区域，并在不影响其他性能的情况下，如何改进蜂窝陶瓷过滤器的结构，增加其抗热震性能成为亟待解决的问题。
发明内容
(一)要解决的技术问题
本发明的目的是提供一种高抗热震性能的蜂窝陶瓷过滤器，解决现有技术中蜂窝陶瓷过滤器抗热震性能低和背压高的问题。
(二)技术方案
为了解决上述技术问题，本发明提供一种高抗热震性能的蜂窝陶瓷过滤器，其特征在于，包括：进口蜂窝陶瓷面和出口蜂窝陶瓷面，所述进口蜂窝陶瓷面和所述出口蜂窝陶瓷面均设有进口通道和设有出口通道，所述进口通道与所述出口通道连通，所述进口通道的出口端和所述出口通道的进口端封堵，所述出口通道的横截面为正方形，且设有出口倒角或出口圆角。
其中，当所述出口通道的横截面为正方形，且设有出口圆角时，所述出口圆角的半径大于所述进口通道与所述出口通道之间的壁厚的0.2倍，且小于0.35mm。
其中，当所述出口通道的横截面为正方形，且设有出口倒角时，所述出口倒角的斜边长度范围为所述出口通道的边长的5％-30％。
其中，所述进口通道的横截面为正方形。
其中，所述进口通道还设有进口圆角。
其中，所述进口圆角的半径小于0.125mm。
其中，所述进口圆角的半径小于所述出口圆角的半径。
(三)有益效果
本发明提供的一种高抗热震性能的蜂窝陶瓷过滤器，通过改变出口通道角的结构设计，可降低在再生过程中产生的热应力，在不影响其它性能的情况下，蜂窝陶瓷过滤器可具有更优异的抗热震性能。
附图说明
图1为本发明实施例1的进口蜂窝陶瓷面结构图；
图2为图1进口蜂窝陶瓷面Ⅰ细节图；
图3为图2出口通道Ⅱ细节图；
图4为本发明实施例2的进口蜂窝陶瓷面结构图；
图5为图4进口蜂窝陶瓷面Ⅰ细节图；
图6为图5出口通道Ⅱ细节图；
图7为本发明实施例3的进口蜂窝陶瓷面结构图；
图8为图7进口蜂窝陶瓷面Ⅰ细节图；
图9为图8出口通道Ⅱ细节图；
图10为本发明实施例4的进口蜂窝陶瓷面结构图；
图11为图10进口蜂窝陶瓷面Ⅰ细节图；
图12为图11出口通道Ⅱ细节图。
图中，1、进口通道；2、出口通道；3、进口圆角；4、出口圆角；5、出口倒角。
具体实施方式
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
如图1-图12所示，进口蜂窝陶瓷面和出口蜂窝陶瓷面，所述进口蜂窝陶瓷面和所述出口蜂窝陶瓷面均设有进口通道和设有出口通道，所述进口通道与所述出口通道连通，所述进口通道的出口端和所述出口通道的进口端封堵，所述出口通道的横截面为正方形，且设有出口倒角或出口圆角。
具体的，此过滤器有皮肤(即外侧壁)，此过滤器可以是圆形，椭圆， 或其它形状。过滤器的组成是一系列的相互连接的多孔的壁构成的进口及出口通道。进口及出口通道一直延伸到整个过滤器的两端。此过滤器由挤出工艺形成。一般来说，此过滤器的材料是陶瓷材料，如堇青石，碳化硅，钛酸铝，及莫来石等，但也可是其它可挤出的材料，如玻璃，玻璃陶瓷，塑料，以及金属。
蜂窝陶瓷过滤器具有进口通道，让尾气进入；也有出口通道，让尾气流出。对进口通道来说，其出口端被封堵，而进口端不堵；对出口通道来说，其进口端被封堵，而出口端不堵。进口及出口通道由壁隔开。一般来说，过滤器的气孔率在20％到70％之间。对汽油机及柴油机尾气过滤器，气孔平均尺寸在5到50微米间，优选10到30微米间。蜂窝陶瓷过滤器每平方英寸有50到350个格子，优选100到300个格子。壁厚可从0.05到0.5毫米，优选0.1到0.4毫米。
为提高出口通道的抗热震强度，要对出口通道的角进行设计。关于进口通道，因为在再生过程的温度突变中，它们处于压应力下，所以没有必要进行热力学加强。为保持低背压，最好保持正方形状或只进行小圆角处理。
实施例1：
如图1-图3所示，进口通道的横截面为正方形，不设圆角。出口通道的横截面为正方形，且设有出口圆角，且出口圆角的半径大于所述进口通道与所述出口通道之间的壁厚的0.2倍，且小于0.35mm。
实施例2：
如图4-图6所示，进口通道的横截面为正方形，不设圆角。出口通道的横截面为正方形，且设有出口倒角，出口倒角的斜边长度范围为所述出口通道的边长的5％-30％。
实施例3：
如图7-图9所示，进口通道的横截面为正方形，且设有进口圆角。出口通道的横截面为正方形，且设有出口圆角，且出口圆角的半径大于 所述进口通道与所述出口通道之间的壁厚的0.2倍，且小于0.35mm。
实施例4：
如图10-图12所示，进口通道的横截面为正方形，且设有进口圆角。出口通道的横截面为正方形，且设有出口倒角，出口倒角的斜边长度范围为所述出口通道的边长的5％-30％。
实施例5：
本实施例与实施例3基本相同，为了描述的简要，在本实施例的描述过程中，不再描述与实施例3相同的技术特征，仅说明本实施例与实施例3不同之处：其中，进口圆角的半径小于0.125mm。
实施例6：
本实施例与实施例4基本相同，为了描述的简要，在本实施例的描述过程中，不再描述与实施例4相同的技术特征，仅说明本实施例与实施例4不同之处：其中，进口圆角的半径小于0.125mm。
实施例7：
本实施例与实施例5基本相同，为了描述的简要，在本实施例的描述过程中，不再描述与实施例5相同的技术特征，仅说明本实施例与实施例5不同之处：其中，所述进口圆角的半径小于所述出口圆角的半径。
实施例8：
本实施例与实施例6基本相同，为了描述的简要，在本实施例的描述过程中，不再描述与实施例6相同的技术特征，仅说明本实施例与实施例6不同之处：其中，所述进口圆角的半径小于所述出口圆角的半径。
具体的，以上实施例的圆角为电火花加工而成或利用磨具打磨实现。
根据上述实施例进行实验，检测本过滤器的最大热应力，设进口和出口通道均为正方形，且不设圆角和倒角为现有技术的比较例；出口通道设有圆角，且圆角半径为0.25mm为本发明的实施例子1；出口通道设有倒角，且倒角的斜边长度为0.25mm为本发明实施例子2。以下为实验对比：
Figure PCTCN2018116703-appb-000001
从上面的解释与计算可看出，通过改变出口通道角的设计，可降低在再生过程中产生的热应力。因此，在不影响其它性能的情况下，蜂窝陶瓷过滤器可具有更优异的抗热震性能。
本发明提供的一种高抗热震性能的蜂窝陶瓷过滤器，通过改变出口通道角的结构设计，可降低在再生过程中产生的热应力，在不影响其它性能的情况下，蜂窝陶瓷过滤器可具有更优异的抗热震性能。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (7)

  1. 一种高抗热震性能的蜂窝陶瓷过滤器，其特征在于，包括：进口蜂窝陶瓷面和出口蜂窝陶瓷面，所述进口蜂窝陶瓷面和所述出口蜂窝陶瓷面均设有进口通道和设有出口通道，所述进口通道与所述出口通道连通，所述进口通道的出口端和所述出口通道的进口端封堵，所述出口通道的横截面为正方形，且设有出口倒角或出口圆角。
  2. 如权利要求1所述的高抗热震性能的蜂窝陶瓷过滤器，其特征在于，当所述出口通道的横截面为正方形，且设有出口圆角时，所述出口圆角的半径大于所述进口通道与所述出口通道之间的壁厚的0.2倍，且小于0.35mm。
  3. 如权利要求1所述的高抗热震性能的蜂窝陶瓷过滤器，其特征在于，当所述出口通道的横截面为正方形，且设有出口倒角时，所述出口倒角的斜边长度范围为所述出口通道的边长的5％-30％。
  4. 如权利要求2或3所述的高抗热震性能的蜂窝陶瓷过滤器，其特征在于，所述进口通道的横截面为正方形。
  5. 如权利要求4所述的高抗热震性能的蜂窝陶瓷过滤器，其特征在于，所述进口通道还设有进口圆角。
  6. 如权利要求5所述的高抗热震性能的蜂窝陶瓷过滤器，其特征在于，所述进口圆角的半径小于0.125mm。
  7. 如权利要求6所述的高抗热震性能的蜂窝陶瓷过滤器，其特征在于，所述进口圆角的半径小于所述出口圆角的半径。
PCT/CN2018/116703 2017-12-27 2018-11-21 一种高抗热震性能的蜂窝陶瓷过滤器 WO2019128560A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711451086.XA CN108286466A (zh) 2017-12-27 2017-12-27 一种高抗热震性能的蜂窝陶瓷过滤器
CN201711451086.X 2017-12-27

Publications (1)

Publication Number Publication Date
WO2019128560A1 true WO2019128560A1 (zh) 2019-07-04

Family

ID=62832469

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/116703 WO2019128560A1 (zh) 2017-12-27 2018-11-21 一种高抗热震性能的蜂窝陶瓷过滤器

Country Status (2)

Country Link
CN (2) CN108286466A (zh)
WO (1) WO2019128560A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108286466A (zh) * 2017-12-27 2018-07-17 山东国瓷功能材料股份有限公司 一种高抗热震性能的蜂窝陶瓷过滤器
CN110107379A (zh) * 2019-06-10 2019-08-09 常州浩蔚环保科技有限公司 一种蜂窝陶瓷颗粒捕捉器的非对称倒角结构
CN110173328A (zh) * 2019-06-18 2019-08-27 常州浩蔚环保科技有限公司 一种蜂窝陶瓷颗粒捕捉器的边缘倒角结构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417908A (en) * 1982-02-22 1983-11-29 Corning Glass Works Honeycomb filter and method of making it
CN1671460A (zh) * 2002-09-13 2005-09-21 揖斐电株式会社 蜂窝状结构体
CN104379232A (zh) * 2012-06-15 2015-02-25 揖斐电株式会社 蜂窝过滤器
CN104602785A (zh) * 2012-10-04 2015-05-06 揖斐电株式会社 蜂窝过滤器
CN106076625A (zh) * 2016-08-11 2016-11-09 天津大学 一种圆筒形微静电过滤器
CN106179751A (zh) * 2016-08-31 2016-12-07 天津大学 一种平板形微静电过滤器
CN108286466A (zh) * 2017-12-27 2018-07-17 山东国瓷功能材料股份有限公司 一种高抗热震性能的蜂窝陶瓷过滤器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7393377B2 (en) * 2004-02-26 2008-07-01 Ngk Insulators, Ltd. Honeycomb filter and exhaust gas treatment apparatus
JP6239303B2 (ja) * 2013-07-31 2017-11-29 イビデン株式会社 ハニカムフィルタ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417908A (en) * 1982-02-22 1983-11-29 Corning Glass Works Honeycomb filter and method of making it
CN1671460A (zh) * 2002-09-13 2005-09-21 揖斐电株式会社 蜂窝状结构体
CN104379232A (zh) * 2012-06-15 2015-02-25 揖斐电株式会社 蜂窝过滤器
CN104602785A (zh) * 2012-10-04 2015-05-06 揖斐电株式会社 蜂窝过滤器
CN106076625A (zh) * 2016-08-11 2016-11-09 天津大学 一种圆筒形微静电过滤器
CN106179751A (zh) * 2016-08-31 2016-12-07 天津大学 一种平板形微静电过滤器
CN108286466A (zh) * 2017-12-27 2018-07-17 山东国瓷功能材料股份有限公司 一种高抗热震性能的蜂窝陶瓷过滤器

Also Published As

Publication number Publication date
CN109630236A (zh) 2019-04-16
CN108286466A (zh) 2018-07-17

Similar Documents

Publication Publication Date Title
US9080484B2 (en) Wall flow type exhaust gas purification filter
US9700842B2 (en) Honeycomb filter
CN106481390B (zh) 封孔蜂窝结构体以及封孔蜂窝单元
CN106481412B (zh) 封孔蜂窝结构体以及封孔蜂窝单元
US9803596B2 (en) Honeycomb filter
US20120317946A1 (en) Exhaust gas purification filter
WO2019128560A1 (zh) 一种高抗热震性能的蜂窝陶瓷过滤器
WO2019128559A1 (zh) 一种抗热震非对称蜂窝陶瓷壁流式过滤器
CN108691606B (zh) 蜂窝过滤器
JP6014526B2 (ja) ハニカム構造体
CN108686440B (zh) 蜂窝过滤器
CN110947258B (zh) 蜂窝过滤器
JP2016172223A (ja) ハニカム構造体
CN111886073B (zh) 封孔蜂窝单元及封孔蜂窝结构体
CN107224812B (zh) 蜂窝过滤器
WO2019128561A1 (zh) 一种蜂窝陶瓷堵孔结构
CN111749761B (zh) 蜂窝过滤器
JP7097327B2 (ja) 排ガス浄化フィルタ
JP5456268B2 (ja) ハニカム構造体
WO2016013361A1 (ja) 排ガス浄化フィルタ
JP5580241B2 (ja) 目封止ハニカム構造体
US11260383B2 (en) Honeycomb structure
US10857531B2 (en) Honeycomb structure
CN105986856B (zh) 蜂窝结构体
CN111749757B (zh) 蜂窝结构体

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18896758

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18896758

Country of ref document: EP

Kind code of ref document: A1