JPH0250114U

JPH0250114U -

Info

Publication number: JPH0250114U
Application number: JP12735988U
Authority: JP
Priority date: 1988-09-30
Filing date: 1988-09-30
Publication date: 1990-04-09

Description

[Brief explanation of drawings]

第１図は本考案の排気ガス浄化用触媒コンバー
タの一実施例を示す側面図、第２図乃至第５図は
第１図に示す金属モノリス担体の製造工程を示し
、第２図は金属シートの斜視図、第３図は金属シ
ートの巻き上げた状態を示す斜視図、第４図は治
具による押し出し工程を説明するための側面図、
第５図は他の押し出し工程を説明するための斜視
図、第６図は第１図の触媒コンバータにおける排
気ガスの線速分布を示す図、第７図は本考案の排
気ガス浄化用触媒コンバータの他の実施例を示す
側面構成図、第８図は第７図の触媒コンバータに
おける排気ガスの線速分布を示す図、第９図及び
第１１図は夫々本考案の触媒コンバータの比較例
を示す側面構成図、第１０図及び第１２図は夫々
第９図及び第１１図の触媒コンバータにおける排
気ガスの線速分布を示す図、第１３乃至第１５図
は本考案の触媒コンバータの他の実施例を示し、
第１３図は触媒コンバータの側面構成図、第１４
図は第１３図の金属モノリス担体の製造工程を示
す斜視図、第１５図は第１３図の触媒コンバータ
における排気ガスの線速分布を示す図、第１６図
は従来の触媒コンバータの側面構成図、第１７図
第１６図の触媒コンバータにおける排気ガスの線
速分布を示す図、第１８図は従来の金属モノリス
担体の側面図、第１９図は金属シートの切断方法
を示す平面図である。１１，１１′，２１，２１′，３１……排気ガ
ス浄化用触媒コンバータ、１３，２３，３３……
金属モノリス担体、１３ａ，２３ａ，３３ａ……
突出端面、１６……押し出し治具、１９……押し
出し金具。 FIG. 1 is a side view showing an embodiment of the exhaust gas purifying catalytic converter of the present invention, FIGS. 2 to 5 show the manufacturing process of the metal monolith carrier shown in FIG. 1, and FIG. 2 is a metal sheet 3 is a perspective view showing the rolled up state of the metal sheet, and FIG. 4 is a side view for explaining the extrusion process using a jig.
FIG. 5 is a perspective view for explaining another extrusion process, FIG. 6 is a diagram showing the linear velocity distribution of exhaust gas in the catalytic converter of FIG. 1, and FIG. 7 is a catalytic converter for exhaust gas purification according to the present invention. FIG. 8 is a diagram showing the linear velocity distribution of exhaust gas in the catalytic converter of FIG. 7, and FIGS. 9 and 11 are comparative examples of the catalytic converter of the present invention. 10 and 12 are diagrams showing the linear velocity distribution of exhaust gas in the catalytic converters of FIGS. 9 and 11, respectively, and FIGS. 13 to 15 are side views of other catalytic converters of the present invention. Examples are shown;
Figure 13 is a side configuration diagram of the catalytic converter;
The figure is a perspective view showing the manufacturing process of the metal monolith carrier shown in Fig. 13, Fig. 15 is a view showing the linear velocity distribution of exhaust gas in the catalytic converter shown in Fig. 13, and Fig. 16 is a side configuration diagram of the conventional catalytic converter. , FIG. 17 is a diagram showing the linear velocity distribution of exhaust gas in the catalytic converter of FIG. 16, FIG. 18 is a side view of a conventional metal monolith carrier, and FIG. 19 is a plan view showing a method of cutting a metal sheet. 11, 11', 21, 21', 31... Catalytic converter for exhaust gas purification, 13, 23, 33...
Metal monolith carrier, 13a, 23a, 33a...
Projecting end surface, 16... extrusion jig, 19... extrusion metal fitting.

Claims

[Scope of utility model registration request]

In a catalytic converter for exhaust gas purification, which includes a metal monolith carrier produced by winding a metal sheet carrying a catalyst component, the exhaust gas upstream end face of the metal monolith carrier projects toward the upstream side, and the downstream end face A catalytic converter for exhaust gas purification, characterized in that a concave portion having substantially the same shape as the protruding portion of the upstream end face is formed in the catalytic converter.