JPS58162226U

JPS58162226U - Exhaust purification device

Info

Publication number: JPS58162226U
Application number: JP6091282U
Authority: JP
Inventors: 磯部　昌広
Original assignee: トヨタ自動車株式会社
Priority date: 1982-04-26
Filing date: 1982-04-26
Publication date: 1983-10-28
Also published as: JPS6233059Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る排気浄化装置の斜視図
、第２図は第１図の排気浄化装置のうち排気マニホルド
部分の一部を断面にして示した平　゛面図、第３図は第
２図の排気マニホルドの一部を断面にして示した正面図
、第４図は第２図の排気マニホルドのＩＶ−ＩＶ線に沿
う部分断面図、である。１・・・排気マニホルド、３・・・拡張室、４・・・触
媒コンバータ、１０．１２・・・湾曲通路部、１３・・
・拡張室壁面、１３ａ・・・酸素センサ取付側の拡張室
壁面、１３１〕・・・酸素センサ取付側と反対側の拡張
室壁面、１４・・・酸素センサ、２０・・・凸化部分、
２１・・・凹部部分、２２・・・副室、２３．　２４．
　２５・・・エツジ化された角部。第２図第３図FIG. 1 is a perspective view of an exhaust gas purification device according to an embodiment of the present invention, FIG. 2 is a plan view showing a part of the exhaust manifold portion of the exhaust gas purification device of FIG. 1 in cross section, and FIG. 3 is a partially sectional front view of the exhaust manifold shown in FIG. 2, and FIG. 4 is a partial sectional view of the exhaust manifold shown in FIG. 2 taken along line IV--IV. 1... Exhaust manifold, 3... Expansion chamber, 4... Catalytic converter, 10.12... Curved passage section, 13...
- Expansion chamber wall surface, 13a... Expansion chamber wall surface on the oxygen sensor mounting side, 131]... Expansion chamber wall surface on the opposite side to the oxygen sensor mounting side, 14... Oxygen sensor, 20... Convex portion,
21... Concave portion, 22... Sub-chamber, 23. 24.
25... Edged corner. Figure 2 Figure 3

Claims

[Scope of utility model registration request]

In an exhaust gas purification device in which an expansion chamber is provided in the center of the exhaust manifold, curved passages of the exhaust manifold are opened from the left and right sides, and an oxygen sensor is installed in the expansion chamber, the wall surface of the expansion chamber on the side where the oxygen sensor is installed is curved. The extension line of the passage section into the expansion chamber is made convex, and the wall surface near the intersection of the extension lines of the left and right curved passage sections is recessed from the inside of the expansion chamber, and an oxygen sensor is installed in the recess. Exhaust purification device.