CATALYTIC CONVERTER
    1.
    发明申请
    CATALYTIC CONVERTER 审中-公开
    催化转换器

    公开(公告)号:US20160102591A1

    公开(公告)日:2016-04-14

    申请号:US14786341

    申请日:2014-04-23

    IPC分类号: F01N3/20

    摘要: A catalytic converter (10) includes i) an outer tube (1) that includes a cylindrical portion (1a), an upstream-side cone portion (1b), and a downstream-side cone portion (1c), and ii) a substrate (2) having a cell structure that is arranged in the cylindrical portion (1a) of the outer tube (1). The substrate (2) has a center region (2a) where a cell density is relatively high and a peripheral region (2b) where the cell density is relatively low, in a cross-section that is orthogonal to a length direction of the substrate (2). A projection portion when a connecting portion (5) of the exhaust duct (4) and the downstream-side cone portion (1c) is projected onto the substrate (2) is within the center region (2a).

    摘要翻译: 催化转化器(10)包括i)包括圆筒部分(1a),上游侧锥形部分(1b)和下游侧锥形部分(1c)的外管(1),以及ii)基底 (2)具有布置在外管(1)的圆筒部分(1a)中的单元结构。 基板(2)具有细胞密度相对较高的中心区域(2a)和细胞密度相对较低的周边区域(2b),其与基板的长度方向正交的截面 2)。 当排气管道(4)和下游侧锥形部分(1c)的连接部分(5)突出到基板(2)上时,突出部分在中心区域(2a)内。

    Exhaust gas purifying catalyst
    9.
    发明授权
    Exhaust gas purifying catalyst 有权
    废气净化催化剂

    公开(公告)号:US07842643B2

    公开(公告)日:2010-11-30

    申请号:US12442825

    申请日:2007-09-19

    IPC分类号: B01J23/10

    摘要: An exhaust gas purifying catalyst exhibiting high catalytic performance and restraining an amount of noble metals used is provided. An exhaust gas purifying catalyst has a catalyst substrate and a catalyst coating layer formed on the catalyst substrate. The catalyst coating layer has a layered structure including an inside layer containing (a-1) Pd, (a-2) Pt, and (a-3) an inorganic oxide, and an outside layer containing (b-1) a noble metal and (b-2) an inorganic oxide. A part of (a-3) the inorganic oxide carries Pd and Pt so that a weight ratio Pd/Pt is within a range of 8 to 12, whereas the other part of (a-3) the inorganic oxide carries Pd and Pt so that a weight ratio Pd/Pt is within a range of 4 to 6 or within a range of 18 to 22.

    摘要翻译: 提供了表现出高催化性能并抑制所用贵金属量的废气净化催化剂。 废气净化催化剂具有形成在催化剂基板上的催化剂基板和催化剂涂层。 催化剂涂层具有层状结构,其包含含有(a-1)Pd,(a-2)Pt和(a-3)无机氧化物的内层,以及含有(b-1)贵金属 和(b-2)无机氧化物。 (a-3)无机氧化物的一部分携带Pd和Pt,使得Pd / Pt的重量比在8至12的范围内,而(a-3)的另一部分无机氧化物携带Pd和Pt Pd / Pt的重量比在4〜6的范围内或18〜22的范围内。

    EXHAUST GAS PURIFYING CATALYST
    10.
    发明申请
    EXHAUST GAS PURIFYING CATALYST 有权
    排气净化催化剂

    公开(公告)号:US20100016150A1

    公开(公告)日:2010-01-21

    申请号:US12442825

    申请日:2007-09-19

    IPC分类号: B01J23/10 B01J23/44 B01J23/42

    摘要: An exhaust gas purifying catalyst exhibiting high catalytic performance and restraining an amount of noble metals used is provided. An exhaust gas purifying catalyst has a catalyst substrate and a catalyst coating layer formed on the catalyst substrate. The catalyst coating layer has a layered structure including an inside layer containing (a-1) Pd, (a-2) Pt, and (a-3) an inorganic oxide, and an outside layer containing (b-1) a noble metal and (b-2) an inorganic oxide. A part of (a-3) the inorganic oxide carries Pd and Pt so that a weight ratio Pd/Pt is within a range of 8 to 12, whereas the other part of (a-3) the inorganic oxide carries Pd and Pt so that a weight ratio Pd/Pt is within a range of 4 to 6 or within a range of 18 to 22.

    摘要翻译: 提供了表现出高催化性能并抑制所用贵金属量的废气净化催化剂。 废气净化催化剂具有形成在催化剂基板上的催化剂基板和催化剂涂层。 催化剂涂层具有层状结构,其包含含有(a-1)Pd,(a-2)Pt和(a-3)无机氧化物的内层,以及含有(b-1)贵金属 和(b-2)无机氧化物。 (a-3)无机氧化物的一部分携带Pd和Pt,使得Pd / Pt的重量比在8至12的范围内,而(a-3)的另一部分无机氧化物携带Pd和Pt Pd / Pt的重量比在4〜6的范围内或18〜22的范围内。