ELECTRICALLY HEATED CATALYTIC CONVERTER

    公开(公告)号:EP3015668B1

    公开(公告)日:2018-12-12

    申请号:EP15191059.3

    申请日:2015-10-22

    IPC分类号: F01N3/20 F01N13/14

    摘要: The present invention provides a highly durable, electrically heated catalytic converter including an inner tube on which an insulation layer is formed, wherein the insulation layer is less susceptible to damage such as cracking and peeling even when thermal stress occurs in a curvature section of the inner tube where the insulation layer is formed. The present invention provides an electrically heated catalytic converter for purifying exhaust gas, the electrically heated catalytic converter including a catalyst carrier supporting a catalyst and configured to generate heat by energization; a case for accommodating the catalyst carrier; and an electrical insulation mat interposed between the catalyst carrier and the case, wherein the case includes an outer tube disposed at the outermost side and an inner tube disposed inside the outer tube; in a cross section upstream of the catalyst carrier taken along a plane including the central axis of the case, the inner tube includes one or more curvature sections curved so as to outwardly project and extended sections connected to the one or more curvature sections, an insulation layer including an amorphous inorganic material is formed at least on an inner surface of the one or more curvature sections and the extended sections of the inner tube, the one or more curvature sections include a first curvature section located closest to the catalyst carrier, the first curvature section has a first curvature section insulation layer formed thereon, the first curvature section insulation layer having a thickness of 100 to 400 µm, the extended sections include a first extended section connected to the first curvature section and adjacent to the catalyst carrier, the first extended section has a first extended section insulation layer formed thereon, and the thickness of the first curvature section insulation layer is greater than 1 time to less than 1.4 times the thickness of the first extended section insulation layer.

    ELECTRICALLY HEATED CATALYTIC CONVERTER
    3.
    发明公开
    ELECTRICALLY HEATED CATALYTIC CONVERTER 有权
    电加热催化转化器

    公开(公告)号:EP3015667A1

    公开(公告)日:2016-05-04

    申请号:EP15191058.5

    申请日:2015-10-22

    IPC分类号: F01N3/20 F01N3/28 F01N13/18

    摘要: The present invention provides a highly durable, electrically heated catalytic converter including an insulation layer formed on an inner tube, wherein the insulation layer is less susceptible to cracking and peeling even when high thermal stress occurs in the insulation layer at and near the end portion of an inner tube, at upstream of a catalyst carrier. An electrically heated catalytic converter for purifying exhaust gas includes a catalyst carrier supporting a catalyst and configured to generate heat by energization; a case for accommodating the catalyst carrier; and an electrical insulation mat interposed between the catalyst carrier and the case, wherein the case includes an outer tube disposed at the outermost side and an inner tube disposed inside the outer tube; in a cross section upstream of the catalyst carrier taken along a plane including the central axis of the case, the inner tube is curved at least once so as to outwardly project and then obliquely extends toward the central axis of the case, an insulation layer having a thickness of 100 to 200 µm is formed in the range from an end portion of the inner tube to 10% of the length of the inner tube from the end portion of the inner tube to an end of the catalyst carrier, an insulation layer having a thickness of 100 to 400 µm is formed in the range from a point immediately after 10% of the length away from the end portion of the inner tube to 50% of the length of the inner tube from the end portion to the end of the catalyst carrier, and the insulation layer formed in the range from the end portion of the inner tube to 10% of the length is thinner than the insulation layer formed in the range from a point immediately after 10% of the length away from the end portion of the inner tube to 50% of the length.

    摘要翻译: 本发明提供一种高耐久性电加热式催化转换器,其包括形成在内管上的绝缘层,其中即使当在绝缘层中和其附近的绝缘层中出现高热应力时,绝缘层也不易于破裂和剥落 内管,位于催化剂载体的上游。 一种用于净化废气的电加热式催化转化器,包括:催化剂载体,负载催化剂并被配置为通过激励产生热量; 容纳催化剂载体的壳体; 以及介于催化剂载体和壳体之间的电绝缘垫,其中壳体包括设置在最外侧的外管和设置在外管内的内管; 在沿着包括壳体的中心轴线的平面截取的催化剂载体的上游横截面中,内管至少弯曲一次以向外突出,然后朝壳体的中心轴线倾斜延伸,绝缘层具有 在从内管的端部到内管的从内管的端部到催化剂载体的端部的长度的10%的范围内形成100至200μm的厚度,绝缘层具有 在距离内管端部的长度的10%之后的点至从内管的端部到内管的长度的50%的范围内形成100至400μm的厚度 催化剂载体,并且形成在从内管的端部至长度的10%的范围内的绝缘层比形成在从紧接在远离端部的长度的10%之后的点处形成的绝缘层更薄 的内管 长度的50%。

    CATALYTIC CONVERTER APPARATUS
    4.
    发明公开
    CATALYTIC CONVERTER APPARATUS 审中-公开
    催化转化器装置

    公开(公告)号:EP2995789A1

    公开(公告)日:2016-03-16

    申请号:EP15178676.1

    申请日:2015-07-28

    摘要: A catalytic converter apparatus (12) includes a catalyst substrate (14) that supports a catalyst for cleaning exhaust gas exhausted from an internal combustion engine, the catalyst substrate being heated by electrification; a case (28) formed in a tubular shape, the catalyst substrate being accommodated inside the case (28) and the case being attached to an exhaust pipe (10); an outer pipe (10, 22) provided at the case, the outer pipe being disposed at least at an upstream side of an exhaust gas flow direction relative to the catalyst substrate (14); an inner pipe (32) provided at the case inside the outer pipe (20, 22), an axial direction end portion of the inner pipe being formed in a tapered shape and a distal end face of the axial direction end portion being formed in a curved surface shape; and an insulating layer (26) provided at least at an inner side face and the axial direction end portion of the inner pipe.

    摘要翻译: 催化剂转换装置(12)包括:催化剂基板(14),该催化剂基板支承用于净化从内燃机排出的排气的催化剂,该催化剂基板通过带电被加热; 形成为管状的壳体(28),所述催化剂基板容纳在所述壳体(28)的内部,并且所述壳体安装在排气管(10)上。 设置在所述壳体上的外管,所述外管至少设置在相对于所述催化剂基板(14)的排气流动方向的上游侧; 设置在外管内侧的壳体的内管,该内管的轴向端部形成为锥状,轴向端部的前端面形成为 曲面形状; 和至少设置在内管的内侧面和轴向端部的绝缘层(26)。

    ELECTRICALLY HEATED CATALYTIC CONVERTER
    6.
    发明公开
    ELECTRICALLY HEATED CATALYTIC CONVERTER 审中-公开
    ELEKTRISCH BEHEIZTER KATALYTISCHER UMWANDLER

    公开(公告)号:EP3015668A1

    公开(公告)日:2016-05-04

    申请号:EP15191059.3

    申请日:2015-10-22

    IPC分类号: F01N3/20 F01N13/14

    摘要: The present invention provides a highly durable, electrically heated catalytic converter including an inner tube on which an insulation layer is formed, wherein the insulation layer is less susceptible to damage such as cracking and peeling even when thermal stress occurs in a curvature section of the inner tube where the insulation layer is formed. The present invention provides an electrically heated catalytic converter for purifying exhaust gas, the electrically heated catalytic converter including a catalyst carrier supporting a catalyst and configured to generate heat by energization; a case for accommodating the catalyst carrier; and an electrical insulation mat interposed between the catalyst carrier and the case, wherein the case includes an outer tube disposed at the outermost side and an inner tube disposed inside the outer tube; in a cross section upstream of the catalyst carrier taken along a plane including the central axis of the case, the inner tube includes one or more curvature sections curved so as to outwardly project and extended sections connected to the one or more curvature sections, an insulation layer including an amorphous inorganic material is formed at least on an inner surface of the one or more curvature sections and the extended sections of the inner tube, the one or more curvature sections include a first curvature section located closest to the catalyst carrier, the first curvature section has a first curvature section insulation layer formed thereon, the first curvature section insulation layer having a thickness of 100 to 400 µm, the extended sections include a first extended section connected to the first curvature section and adjacent to the catalyst carrier, the first extended section has a first extended section insulation layer formed thereon, and the thickness of the first curvature section insulation layer is greater than 1 time to less than 1.4 times the thickness of the first extended section insulation layer.

    摘要翻译: 本发明提供了一种耐用性高的电加热催化转化器,其包括形成有绝缘层的内管,其中即使在内部的曲率部分发生热应力,绝缘层也不易受损,例如破裂和剥离 管,其中形成绝缘层。 本发明提供了一种用于净化废气的电加热催化转化器,该电加热催化转化器包括负载催化剂并被配置为通过通电产生热量的催化剂载体; 用于容纳催化剂载体的壳体; 以及插入在所述催化剂载体和所述壳体之间的电绝缘垫,其中所述壳体包括设置在最外侧的外管和设置在所述外管内的内管; 在沿着包括壳体的中心轴线的平面截取的催化剂载体的上游侧的横截面中,内管包括一个或多个弯曲部分,其弯曲成向外突出,并且连接到一个或多个曲率部分的延伸部分,绝缘体 至少在所述一个或多个曲率部分的内表面和所述内管的延伸部分上形成包括无定形无机材料的层,所述一个或多个曲率部分包括位于最靠近所述催化剂载体的第一曲率部分,所述第一 所述弯曲部具有形成在其上的第一曲率部绝缘层,所述第一曲率部绝缘层的厚度为100〜400μm,所述延伸部包括与所述第一弯曲部连接且与所述催化剂载体相邻的第一延伸部, 延伸部分具有形成在其上的第一延伸部分绝缘层和第一弯曲部的厚度 ure段绝缘层大于1倍至小于第一延伸段绝缘层厚度的1.4倍。

    ELECTRICALLY HEATED CATALYTIC CONVERTER

    公开(公告)号:EP3015666B1

    公开(公告)日:2018-06-06

    申请号:EP15191057.7

    申请日:2015-10-22

    IPC分类号: F01N3/20 F01N3/28 F01N13/18

    摘要: The present invention provides a highly durable, electrically heated catalytic converter having a relatively simple structure while its inner tube is curved toward the central axis, wherein an insulation layer formed on the inner tube is less susceptible to cracking and peeling even when the inner tube is subjected to temperature changes or temperature gradients. An electrically heated catalytic converter for purifying exhaust gas includes a catalyst carrier supporting a catalyst and configured to generate heat by energization; a case for accommodating the catalyst carrier; and an electrical insulation mat interposed between the catalyst carrier and the case, wherein the case includes an outer tube disposed at the outermost side and an inner tube disposed inside the outer tube; in a cross section upstream of the catalyst carrier taken along a plane including the central axis of the case, the inner tube includes a first curved portion and a second curved portion formed in this order from the side closer to the catalyst carrier, the first curved portion is curved so as to outwardly project and the second curved portion is curved in the direction opposite to the curvature of the first curved portion so as to project toward the central axis, the second curved portion has a curvature radius larger than that of the first curved portion, and an insulation layer is formed on at least one portion of the inner tube.

    ELECTRICALLY HEATED CATALYTIC CONVERTER
    8.
    发明公开
    ELECTRICALLY HEATED CATALYTIC CONVERTER 有权
    电加热催化转化器

    公开(公告)号:EP3015666A1

    公开(公告)日:2016-05-04

    申请号:EP15191057.7

    申请日:2015-10-22

    IPC分类号: F01N3/20 F01N3/28 F01N13/18

    摘要: The present invention provides a highly durable, electrically heated catalytic converter having a relatively simple structure while its inner tube is curved toward the central axis, wherein an insulation layer formed on the inner tube is less susceptible to cracking and peeling even when the inner tube is subjected to temperature changes or temperature gradients. An electrically heated catalytic converter for purifying exhaust gas includes a catalyst carrier supporting a catalyst and configured to generate heat by energization; a case for accommodating the catalyst carrier; and an electrical insulation mat interposed between the catalyst carrier and the case, wherein the case includes an outer tube disposed at the outermost side and an inner tube disposed inside the outer tube; in a cross section upstream of the catalyst carrier taken along a plane including the central axis of the case, the inner tube includes a first curved portion and a second curved portion formed in this order from the side closer to the catalyst carrier, the first curved portion is curved so as to outwardly project and the second curved portion is curved in the direction opposite to the curvature of the first curved portion so as to project toward the central axis, the second curved portion has a curvature radius larger than that of the first curved portion, and an insulation layer is formed on at least one portion of the inner tube.

    摘要翻译: 本发明提供一种高耐久性电加热催化转化器,其结构相对简单,而其内管朝向中心轴弯曲,其中形成在内管上的绝热层即使在内管处于内部时也不易破裂和剥离 受到温度变化或温度梯度的影响。 一种用于净化废气的电加热式催化转化器,包括:催化剂载体,负载催化剂并被配置为通过激励产生热量; 容纳催化剂载体的壳体; 以及介于催化剂载体和壳体之间的电绝缘垫,其中壳体包括设置在最外侧的外管和设置在外管内的内管; 在沿着包括壳体的中心轴线的平面截取的催化剂载体上游的截面中,内管包括从靠近催化剂载体的一侧依次形成的第一弯曲部分和第二弯曲部分,第一弯曲部分 所述第二弯曲部分弯曲以向外突出,并且所述第二弯曲部分在与所述第一弯曲部分的弯曲相反的方向上弯曲以朝向所述中心轴线突出,所述第二弯曲部分的曲率半径大于所述第一弯曲部分 弯曲部分,并且在内管的至少一部分上形成绝缘层。

    GAS CIRCULATION MEMBER
    9.
    发明授权
    GAS CIRCULATION MEMBER 有权
    燃气循环成员

    公开(公告)号:EP3059410B1

    公开(公告)日:2018-03-07

    申请号:EP14851886.3

    申请日:2014-10-07

    申请人: Ibiden Co., Ltd.

    摘要: The present invention provides a gas flow member capable of preventing a decrease in engine output and a decrease in exhaust gas purification performance even when the surface of a housing component of a turbo engine or the surface of an exhaust system component is a surface having high roughness or waviness. The gas flow member includes a metal base having a gas flow surface and a surface coat layer containing an amorphous inorganic material and a crystalline inorganic material, the gas flow surface of the base being coated with the surface coat layer, wherein the crystalline inorganic material contains at least one selected from the group consisting of calcia, magnesia, ceria, alumina, and zirconia, the gas flow surface of the base is a surface having a ten-point average roughness RzJIS of a roughness curve of 10 to 50 µm and having a maximum waviness height Wz of a waviness curve of 15 to 100 µm, roughness and waviness of the gas flow surface of the base are covered with the surface coat layer, the surface coat layer has an average thickness of more than 50 µm, and a coated gas flow surface which is a surface formed by covering the gas flow surface of the base with the surface coat layer is a smooth surface having a ten-point average roughness RzJIS of a roughness curve of 5 µm or less and is also a flat surface having a maximum waviness height Wz of a waviness curve of 10 µm or less.