JPS6162220U

JPS6162220U -

Info

Publication number: JPS6162220U
Application number: JP14778284U
Authority: JP
Priority date: 1984-09-28
Filing date: 1984-09-28
Publication date: 1986-04-26

Description

[Brief explanation of the drawing]

第１図は、本考案の触媒コンバータの１実施例
を示す縦断面図、第２図は、第１図のＡ−Ａ断面
図、第３図は、第１図のＢ−Ｂ断面図、第４図は
、第１図のＣ−Ｃ断面図、第５図は、自動車用エ
ンジン用排気系配管の構成を示す斜視図、第６図
は、従来の触媒コンバータを示す縦断面図である
。１……自動車用排気系配管、２……フロントパ
イプ、３……フランジ、４……触媒コンバータ、
５……フランジ、６……センタパイプ、７……マ
フラ、８……テールパイプ、１１……排気ガス拡
張部、１２……触媒担体層、１３……排気ガス収
縮部、１４……シール材、１５……外筒、１６ａ
，１６ｂ，１６ｃ……案内部材、１７ａ，１７ｂ
，１７ｃ……案内部材、ａ……排気ガス流入部断
面積、ｂ……触媒担体層流入部断面積、ｃ……渦
流、ｄ……排気ガス流入方向、ｅ……触媒担体層
への排気ガス流入方向、θ……角度。 FIG. 1 is a longitudinal sectional view showing one embodiment of the catalytic converter of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is a sectional view taken along line BB in FIG. 1. FIG. 4 is a sectional view taken along the line C-C in FIG. 1, FIG. 5 is a perspective view showing the configuration of exhaust system piping for an automobile engine, and FIG. 6 is a longitudinal sectional view showing a conventional catalytic converter. . 1... Automotive exhaust system piping, 2... Front pipe, 3... Flange, 4... Catalytic converter,
5... Flange, 6... Center pipe, 7... Muffler, 8... Tail pipe, 11... Exhaust gas expansion section, 12... Catalyst carrier layer, 13... Exhaust gas contraction section, 14... Seal material , 15...outer cylinder, 16a
, 16b, 16c...guiding member, 17a, 17b
, 17c... Guide member, a... Cross-sectional area of exhaust gas inlet, b... Cross-sectional area of catalyst carrier layer inlet, c... Eddy flow, d... Exhaust gas inflow direction, e... Exhaust gas to catalyst carrier layer Gas inflow direction, θ...angle.

Claims

[Scope of claim for utility model registration] Exhaust gas discharged from the engine flows in,
The catalytic converter is a catalytic converter in which harmful components in exhaust gas are purified and discharged during the process of flowing through a catalyst carrier layer disposed inside the catalytic converter. An exhaust gas expansion section that allows the exhaust gas to flow into the layer, a catalyst carrier layer where the exhaust gas is purified as it flows through the flow path therein, and an exhaust gas contraction section where the exhaust gas flowing out from the catalyst carrier layer converges. and the change in the flow direction of the exhaust gas flowing into the catalytic converter from the exhaust gas extension part to the catalyst carrier layer and from the catalyst carrier layer to the exhaust gas storage part is in an angular range of 45 to 90 degrees, and , the exhaust gas flow direction guide member that smoothes the change in the exhaust gas flow direction described above is installed in the exhaust gas extension part upstream of the catalyst carrier layer and downstream of the catalyst carrier layer in the catalytic converter. A catalytic converter characterized in that it is provided in an exhaust gas contraction section.