JPH06101516A - Oxygen sensor installation structure in manifold catalyst converter - Google Patents

Oxygen sensor installation structure in manifold catalyst converter

Info

Publication number
JPH06101516A
JPH06101516A JP24995992A JP24995992A JPH06101516A JP H06101516 A JPH06101516 A JP H06101516A JP 24995992 A JP24995992 A JP 24995992A JP 24995992 A JP24995992 A JP 24995992A JP H06101516 A JPH06101516 A JP H06101516A
Authority
JP
Japan
Prior art keywords
oxygen sensor
assembly panel
curved assembly
exhaust gas
catalytic converter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP24995992A
Other languages
Japanese (ja)
Other versions
JP3028882B2 (en
Inventor
Yoichi Takahashi
洋一 高橋
Koji Noda
浩二 野田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marelli Corp
Original Assignee
Calsonic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Calsonic Corp filed Critical Calsonic Corp
Priority to JP4249959A priority Critical patent/JP3028882B2/en
Publication of JPH06101516A publication Critical patent/JPH06101516A/en
Application granted granted Critical
Publication of JP3028882B2 publication Critical patent/JP3028882B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/008Mounting or arrangement of exhaust sensors in or on exhaust apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

PURPOSE:To certainly detect an oxygen density in exhaust gas flowed from a plurality of branch pipes by means of a detecting part on an end of an oxygen sensor in respect to the oxygen sensor installation structure of a manifold catalyst converter which is arranged in an exhaust system of a multicylinder engine substantially in a vertical manner, and is used for purification of the exhaust gas or the like. CONSTITUTION:A benging collection panel 6 has a recession 11 which is actually projected into a bending collection panel 6. An oxygen sensor 13, penetrating through the recession 11, has a detection part 13B which is located in the vicinity of a joining point of exhaust gas flowing through a plurality of branch pipes 3, 3, 3, 3.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、多気筒エンジンの排気
系に略垂直に配置され、排気ガス等の浄化に使用される
マニホールド触媒コンバータの酸素センサ取付構造に関
する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oxygen sensor mounting structure for a manifold catalytic converter which is arranged substantially perpendicular to an exhaust system of a multi-cylinder engine and is used for purifying exhaust gas and the like.

【0002】[0002]

【従来の技術】一般に、排気ガスを浄化するため、自動
車の排気系には、触媒コンバータが床下に配置される
が、かかる触媒コンバータ以外に、例えば実開昭59−
34012号公報に示すようにエンジンのシリンダヘッ
ドの直ぐ排気下流に配置されたマニホールド触媒コンバ
ータも知られている。
2. Description of the Related Art Generally, in order to purify exhaust gas, a catalytic converter is arranged under the floor in the exhaust system of an automobile.
As shown in Japanese Patent No. 34012, there is also known a manifold catalytic converter arranged immediately downstream of the cylinder head of the engine and downstream of the exhaust gas.

【0003】図7,図8はこの種のマニホールド触媒コ
ンバータの一例を示す。図において、符号101は図示
しないエンジンのシリンダヘッドに取り付けられるマニ
ホールド触媒コンバータで、このマニホールド触媒コン
バータ101は、フランジ102と、4つのブランチ管
103,103,103,103と、断面楕円形状のシ
ェル104とを備えている。シェル104は、胴体部1
05と、胴体部105の上端に一体に設けられた半球状
の湾曲集合パネル106からなる上流側ディフューザ
と、胴体部105の他端に一体に設けられた下流側ディ
フューザ107と、下流側ディフューザ107の下端に
設けられて図示しない排気管が接続される接続フランジ
108とから構成されている。シェル104の胴体部1
05には、触媒担体110が収容されている。
7 and 8 show an example of this type of manifold catalytic converter. In the figure, reference numeral 101 is a manifold catalytic converter that is attached to a cylinder head of an engine (not shown). The manifold catalytic converter 101 includes a flange 102, four branch pipes 103, 103, 103, 103, and a shell 104 having an elliptical cross section. It has and. The shell 104 is the body portion 1.
05, an upstream diffuser consisting of a hemispherical curved assembly panel 106 integrally provided at the upper end of the body 105, a downstream diffuser 107 integrally provided at the other end of the body 105, and a downstream diffuser 107. And a connection flange 108 that is provided at the lower end of the connection flange to which an exhaust pipe (not shown) is connected. Body part 1 of shell 104
The catalyst carrier 110 is accommodated in 05.

【0004】上記の各フランジ102にそれぞれ各ブラ
ンチ管103の一端103Aが固着され、シェル104
の湾曲集合パネル106に各ブランチ管103の他端1
03Bがそれぞれ固着されている。
One end 103A of each branch pipe 103 is fixed to each of the above flanges 102, and a shell 104 is formed.
The other end 1 of each branch pipe 103 on the curved assembly panel 106 of
03B is fixed.

【0005】そして、シェル104の湾曲集合パネル1
06に、雌螺子111Aを有するボス部111が溶接W
3で固着され、このボス部111の雌螺子111Aに酸
素センサ112の雄螺子部112Aが螺合して装着され
る。上記の酸素センサ112は、排気ガス中の酸素濃度
をエンジンの燃焼状態を最適にする制御装置(図示せ
ず)にフィードバックするもので、その先端の検出部1
12Bにより、排気ガス中の酸素を検出する。
Then, the curved assembly panel 1 of the shell 104
At 06, the boss portion 111 having the female screw 111A is welded W
The male screw portion 112A of the oxygen sensor 112 is screwed and attached to the female screw 111A of the boss portion 111. The oxygen sensor 112 described above feeds back the oxygen concentration in the exhaust gas to a control device (not shown) that optimizes the combustion state of the engine.
Oxygen in the exhaust gas is detected by 12B.

【0006】[0006]

【発明が解決しようとする課題】ところが、従来のマニ
ホールド触媒コンバータ101にあっては、湾曲集合パ
ネル106に装着された酸素センサ112の検出部11
2Bは、湾曲集合パネル106の内側近傍に位置してい
るため、検出部112Bが各ブランチ管103からの排
気ガスの合流点からずれた位置にあり、従って、酸素セ
ンサ112の先端の検出部112Bで、複数のブランチ
管103から流れる排気ガスが確実に検出できず、エン
ジンの燃焼状態を最適にする制御装置(図示せず)に排
気ガス中の検出した酸素濃度をフィードバックする際、
確実に酸素濃度を検出することができず、酸素濃度のフ
ィードバック情報の誤差が多く、その結果、エンジンの
排気ガス中に含まれる未燃焼成分の低減が不充分である
という問題がある。
However, in the conventional manifold catalytic converter 101, the detecting portion 11 of the oxygen sensor 112 mounted on the curved assembly panel 106 is used.
Since 2B is located in the vicinity of the inside of the curved assembly panel 106, the detection unit 112B is at a position displaced from the confluence point of the exhaust gas from each branch pipe 103, and therefore, the detection unit 112B at the tip of the oxygen sensor 112. Therefore, when the exhaust gas flowing from the plurality of branch pipes 103 cannot be reliably detected, and when the detected oxygen concentration in the exhaust gas is fed back to the control device (not shown) that optimizes the combustion state of the engine,
There is a problem that the oxygen concentration cannot be reliably detected, and there are many errors in the oxygen concentration feedback information, resulting in insufficient reduction of unburned components contained in the exhaust gas of the engine.

【0007】これは、マニホールド触媒コンバータ10
1では、複数のブランチ管102が湾曲集合パネル10
6に分散して接合され、しかも、酸素センサ112を湾
曲集合パネル106に装着するという構造の制約下で生
じる問題である。
This is a manifold catalytic converter 10
1, the plurality of branch pipes 102 includes the curved assembly panel 10.
This is a problem that occurs under the restriction of the structure in which the oxygen sensors 112 are dispersed and bonded to the curved assembly panel 106 and the oxygen sensor 112 is mounted on the curved assembly panel 106.

【0008】本発明は、上述の問題点を解決するために
なされたもので、その目的は、酸素センサの先端の検出
部で、複数のブランチ管から流れる排気ガス中の酸素濃
度を確実に検出し、酸素濃度のフィードバック情報の誤
差を少なくしてエンジンの排気ガス中に含まれる未燃焼
成分の低減を充分に図ることができるマニホールド触媒
コンバータにおける酸素センサ取付構造を提供すること
である。
The present invention has been made to solve the above-mentioned problems, and an object thereof is to reliably detect the oxygen concentration in exhaust gas flowing from a plurality of branch pipes at a detection portion at the tip of an oxygen sensor. However, it is another object of the present invention to provide an oxygen sensor mounting structure in a manifold catalytic converter that can sufficiently reduce unburned components contained in engine exhaust gas by reducing an error in oxygen concentration feedback information.

【0009】[0009]

【課題を解決するための手段】請求項1記載の発明は、
複数のブランチ管と、複数のブランチ管が固着される湾
曲集合パネルを有して触媒担体を収容するシェルと、湾
曲集合パネルに装着される酸素センサとを有してなるマ
ニホールド触媒コンバータにおいて、シェルの湾曲集合
パネルに、該湾曲集合パネル内に突出する凹部を形成
し、この凹部を貫通して、酸素センサを、その先端の検
出部が複数のブランチ管からの排気ガスの合流点付近に
位置するように装着したことを特徴とする。
The invention according to claim 1 is
A manifold catalytic converter including a plurality of branch pipes, a shell having a curved assembly panel to which the plurality of branch pipes are fixedly mounted to accommodate a catalyst carrier, and an oxygen sensor attached to the curved assembly panel, the shell comprising: A curved concave panel is formed with a concave portion projecting into the curved circular panel, and the oxygen sensor is penetrated through the concave concave panel so that the detection portion at the tip is located near the confluence point of exhaust gas from a plurality of branch pipes. It is characterized in that it is attached so that

【0010】請求項2記載の発明は、請求項1記載の発
明において、湾曲集合パネルの凹部を、湾曲集合パネル
に形成した孔に基端が溶接された有底円筒体で構成した
ことを特徴とする。
The invention according to claim 2 is characterized in that, in the invention according to claim 1, the concave portion of the curved assembly panel is constituted by a bottomed cylindrical body whose base end is welded to a hole formed in the curved assembly panel. And

【0011】請求項3記載の発明は、請求項2記載の発
明において、湾曲集合パネルの凹部を、湾曲集合パネル
に絞り加工を施して形成される窪み部で構成したことを
特徴とする。
A third aspect of the present invention is characterized in that, in the second aspect of the invention, the concave portion of the curved assembly panel is formed by a recessed portion formed by subjecting the curved assembly panel to a drawing process.

【0012】[0012]

【作用】本発明においては、シェルの湾曲集合パネル
に、該湾曲集合パネル内に突出して形成された凹部に、
酸素センサを、その先端の検出部がブランチ管からの排
気ガスの合流点付近に位置するように装着したので、酸
素センサの検出部で、複数のブランチ管から流れる排気
ガスが確実に検出される。
In the present invention, in the curved assembly panel of the shell, the recess formed by projecting into the curved assembly panel,
Since the oxygen sensor is mounted so that the detection part at the tip of the oxygen sensor is located near the confluence point of the exhaust gas from the branch pipe, the detection part of the oxygen sensor can reliably detect the exhaust gas flowing from the plurality of branch pipes. .

【0013】[0013]

【実施例】以下、図面により本発明の実施例について説
明する。図1ないし図4は本発明の実施例に係わるマニ
ホールド触媒コンバータの酸素センサ取付構造を示す。
Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an oxygen sensor mounting structure of a manifold catalytic converter according to an embodiment of the present invention.

【0014】図において、符号1は図示しないエンジン
のシリンダヘッドに取り付けられたマニホールド触媒コ
ンバータで、このマニホールド触媒コンバータ1は、フ
ランジ2,2と、4つのブランチ管3,3,3,3と、
シェル4とを備えている。シェル4は、断面楕円形状の
胴体部5と、胴体部5の上端に一体に設けられた半球状
の湾曲集合パネル6からなる上流側ディフューザと、胴
体部5の他端に一体に設けられた下流側ディフューザ7
と、下流側ディフューザ7の下端に設けられて図示しな
い排気管が接続される接続フランジ8とから構成されて
いる。シェル4の胴体部5には、触媒担体10が収容さ
れている。
In the figure, reference numeral 1 is a manifold catalytic converter attached to a cylinder head of an engine (not shown). The manifold catalytic converter 1 includes flanges 2, 2 and four branch pipes 3, 3, 3, 3.
And a shell 4. The shell 4 is provided with a body portion 5 having an elliptical cross section, an upstream diffuser including a hemispherical curved assembly panel 6 integrally provided at the upper end of the body portion 5, and integrally provided at the other end of the body portion 5. Downstream diffuser 7
And a connection flange 8 provided at the lower end of the downstream diffuser 7 and connected to an exhaust pipe (not shown). The catalyst carrier 10 is housed in the body portion 5 of the shell 4.

【0015】上記の各フランジ2にそれぞれ各ブランチ
管3の一端3Aが固着され、シェル4の湾曲集合パネル
6に各ブランチ管3の他端3Bがそれぞれ固着されてい
る。そして、シェル4の湾曲集合パネル6に、該湾曲集
合パネル6内に突出する凹部11が形成され、この凹部
11は、湾曲集合パネル6の孔6Aに基端12Eが溶接
線W1で溶接された有底円筒体12の内壁面12Aで構
成されている。また、有底円筒体12の底部12Bに
は、雌螺子部12Cが切られている。
One end 3A of each branch pipe 3 is fixed to each flange 2 and the other end 3B of each branch pipe 3 is fixed to the curved assembly panel 6 of the shell 4. Then, the curved assembly panel 6 of the shell 4 is formed with a recess 11 projecting into the curved assembly panel 6, and the recessed portion 11 has a base end 12E welded to a hole 6A of the curved assembly panel 6 at a welding line W1. It is configured by the inner wall surface 12A of the bottomed cylindrical body 12. A female screw portion 12C is cut on the bottom portion 12B of the bottomed cylindrical body 12.

【0016】13は酸素センサで、排気ガス中の酸素濃
度をエンジンの燃焼状態を最適にする制御装置(図示せ
ず)にフィードバックするもので、その途中には雄螺子
部13Aが設けられ、その先端には検出部13Bが形成
されている。雄螺子部13Aが有底円筒体12の雌螺子
部12Cに螺合することにより、酸素センサ13は凹部
11に装着され、その検出部13Bが各ブランチ管3か
らの排気ガスの合流点付近に位置している。
An oxygen sensor 13 feeds back the oxygen concentration in the exhaust gas to a control device (not shown) for optimizing the combustion state of the engine. A male screw portion 13A is provided in the middle of the oxygen sensor. A detector 13B is formed at the tip. The oxygen sensor 13 is mounted in the recess 11 by screwing the male screw portion 13A into the female screw portion 12C of the bottomed cylindrical body 12, and the detection portion 13B is located near the confluence point of the exhaust gas from each branch pipe 3. positioned.

【0017】以上の如き構成によれば、シェル4の湾曲
集合パネル6に、該湾曲集合パネル6内に突出して形成
された凹部11に、酸素センサ13を、その先端の検出
部13Bが複数のブランチ管3からの排気ガスの合流点
付近に位置するように装着したので、酸素センサ13の
先端の検出部13Bで、複数のブランチ管3から流れる
排気ガスが確実に検出される。
According to the above-described structure, the curved assembly panel 6 of the shell 4 is provided with the oxygen sensor 13 in the concave portion 11 formed so as to project into the curved assembly panel 6, and the oxygen sensor 13 and the detection portion 13B at the tip thereof are plural. Since the exhaust pipes are mounted so as to be located near the confluence of the exhaust gases from the branch pipes 3, the exhaust gas flowing from the plurality of branch pipes 3 can be reliably detected by the detection unit 13B at the tip of the oxygen sensor 13.

【0018】従って、エンジンの燃焼状態を最適にする
制御装置(図示せず)に排気ガス中の検出した酸素濃度
をフィードバックする際、確実に酸素濃度を検出して酸
素濃度のフィードバック情報の誤差を少なくし、その結
果、エンジンの排気ガス中に含まれる未燃焼成分を低減
することができる。
Therefore, when the detected oxygen concentration in the exhaust gas is fed back to the control device (not shown) for optimizing the combustion state of the engine, the oxygen concentration is surely detected to eliminate the error in the oxygen concentration feedback information. As a result, unburned components contained in the exhaust gas of the engine can be reduced.

【0019】また、凹部11を形成する有底円筒体12
は、その基端12Eが湾曲集合パネル6の孔6Aと溶接
線W1で溶接されるので、万一、溶接不良が発見されて
も、外側からの溶接補修が容易で、保守性に優れてい
る。
Further, a bottomed cylindrical body 12 forming the concave portion 11 is formed.
Since its base end 12E is welded to the hole 6A of the curved assembly panel 6 at the welding line W1, even if a welding defect is found, it is easy to repair the welding from the outside and is excellent in maintainability. .

【0020】なお、本実施例においては、湾曲集合パネ
ル6の凹部11は、湾曲集合パネル6の孔6Aに基端1
2Aが溶接された有底円筒体12の内壁面12Aで構成
されているが、凹部11を形成する手段として、これに
限定されることなく、例えば、図5,図6に示すよう
に、湾曲集合パネル6の凹部11を、湾曲集合パネル6
に絞り加工を施して形成される窪み部21の内壁面21
Aで構成することもできる。この場合には、窪み部21
に孔部21Bが形成され、孔部21Bの裏側周縁に雌螺
子部22Aを有するボス部22が溶接線W2で溶接さ
れ、このボス部22の雌螺子部22Aに酸素センサ13
の雄螺子部13Aが螺合して装着される。
In the present embodiment, the concave portion 11 of the curved assembly panel 6 has the base end 1 in the hole 6A of the curved assembly panel 6.
2A is formed by the inner wall surface 12A of the bottomed cylindrical body 12 welded, but the means for forming the concave portion 11 is not limited to this, and for example, as shown in FIGS. The concave portion 11 of the gathering panel 6 is replaced by the curved gathering panel 6
Inner wall surface 21 of the recessed portion 21 formed by drawing
It can also be configured with A. In this case, the depression 21
A hole portion 21B is formed in the hole 21B, and a boss portion 22 having a female screw portion 22A is welded to the back side peripheral edge of the hole portion 21B at a welding line W2.
The male screw portion 13A is attached by screwing.

【0021】[0021]

【発明の効果】以上説明したように、本発明によれば、
シェルの湾曲集合パネルに、該湾曲集合パネル内に突出
して形成された凹部に、酸素センサを、その先端の検出
部がブランチ管からの排気ガスの合流点付近に位置する
ように装着したので、酸素センサの先端の検出部で、複
数のブランチ管から流れる排気ガスが確実に検出され
る。
As described above, according to the present invention,
In the curved assembly panel of the shell, in the concave portion formed to project in the curved assembly panel, the oxygen sensor was mounted so that the detection portion at the tip thereof was located near the confluence of the exhaust gas from the branch pipe, Exhaust gas flowing from the plurality of branch pipes is reliably detected by the detection unit at the tip of the oxygen sensor.

【0022】従って、エンジンの燃焼状態を最適にする
制御装置(図示せず)に排気ガス中の検出した酸素濃度
をフィードバックする際、確実に酸素濃度を検出して酸
素濃度のフィードバック情報の誤差を少なくし、その結
果、エンジンの排気ガス中に含まれる未燃焼成分を低減
することができる効果を奏する。
Therefore, when the detected oxygen concentration in the exhaust gas is fed back to the control device (not shown) for optimizing the combustion state of the engine, the oxygen concentration is surely detected to eliminate the error in the oxygen concentration feedback information. As a result, the unburned component contained in the exhaust gas of the engine can be reduced.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例に係わるマニホールド触媒コン
バータの斜視図である。
FIG. 1 is a perspective view of a manifold catalytic converter according to an embodiment of the present invention.

【図2】同マニホールド触媒コンバータのシェルを示す
一部断面側面図である。
FIG. 2 is a partial cross-sectional side view showing a shell of the same manifold catalytic converter.

【図3】酸素センサの取付構造を示す断面側面図であ
る。
FIG. 3 is a sectional side view showing a mounting structure of an oxygen sensor.

【図4】図3の湾曲集合パネルの凹部を示す断面図であ
る。
4 is a cross-sectional view showing a concave portion of the curved assembly panel of FIG.

【図5】酸素センサの取付構造の変形例を示す断面側面
図である。
FIG. 5 is a sectional side view showing a modified example of the mounting structure of the oxygen sensor.

【図6】図5の湾曲集合パネルの凹部を示す断面図であ
る。
6 is a cross-sectional view showing a concave portion of the curved assembly panel of FIG.

【図7】従来におけるマニホールド触媒コンバータの斜
視図である。
FIG. 7 is a perspective view of a conventional manifold catalytic converter.

【図8】同マニホールド触媒コンバータのシェルを示す
一部断面側面図である。
FIG. 8 is a partial cross-sectional side view showing a shell of the manifold catalytic converter.

【符号の説明】[Explanation of symbols]

1 マニホールド触媒コンバータ 3 ブランチ管 4 シェル 6 湾曲集合パネル 10 触媒担体 11 凹部 12 有底円筒体 12E 基端 13 酸素センサ 13B 検出部 DESCRIPTION OF SYMBOLS 1 Manifold catalytic converter 3 Branch pipe 4 Shell 6 Curved assembly panel 10 Catalyst carrier 11 Recessed portion 12 Bottomed cylindrical body 12E Base end 13 Oxygen sensor 13B Detection section

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 複数のブランチ管(3,3,3,3)
と、 複数のブランチ管(3,3,3,3)が固着される湾曲
集合パネル(6)を有して触媒担体(10)を収容する
シェル(4)と、 湾曲集合パネル(6)に装着される酸素センサ(13)
とを有してなるマニホールド触媒コンバータにおいて、 シェル(4)の湾曲集合パネル(6)に、該湾曲集合パ
ネル(6)内に突出する凹部(11)を形成し、 この凹部(11)を貫通して、酸素センサ(13)を、
その先端の検出部(13B)が複数のブランチ管(3,
3,3,3)からの排気ガスの合流点付近に位置するよ
うに装着したことを特徴とするマニホールド触媒コンバ
ータにおける酸素センサ取付構造。
1. A plurality of branch pipes (3, 3, 3, 3)
A shell (4) having a curved assembly panel (6) to which a plurality of branch pipes (3, 3, 3, 3) are fixed and containing a catalyst carrier (10); and a curved assembly panel (6). Attached oxygen sensor (13)
In a manifold catalytic converter comprising: a curved assembly panel (6) of a shell (4), a recess (11) protruding into the curved assembly panel (6) is formed, and the recess (11) is penetrated. Then, the oxygen sensor (13)
The detection part (13B) at the tip of the branch pipes (3, 3)
(3,3,3) An oxygen sensor mounting structure in a manifold catalytic converter, which is mounted so as to be located near a confluence point of exhaust gas from (3, 3, 3).
【請求項2】 湾曲集合パネル(6)の凹部(11)
は、湾曲集合パネル(6)に形成した孔(6A)に基端
(12E)が溶接された有底円筒体(12)で構成され
ていることを特徴とする請求項1記載のマニホールド触
媒コンバータにおける酸素センサ取付構造。
2. Recesses (11) in a curved assembly panel (6).
The manifold catalytic converter according to claim 1, characterized in that the base is constituted by a bottomed cylindrical body (12) in which a base end (12E) is welded to a hole (6A) formed in the curved assembly panel (6). Oxygen sensor mounting structure in.
【請求項3】 湾曲集合パネル(6)の凹部(11)
は、湾曲集合パネル(6)に絞り加工を施して形成され
る窪み部(21)で構成されていることを特徴とする請
求項1記載のマニホールド触媒コンバータにおける酸素
センサ取付構造。
3. Recesses (11) in a curved assembly panel (6)
The oxygen sensor mounting structure in a manifold catalytic converter according to claim 1, wherein the curved assembly panel (6) is formed of a recess (21) formed by drawing.
JP4249959A 1992-09-18 1992-09-18 Oxygen sensor mounting structure in manifold catalytic converter Expired - Fee Related JP3028882B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4249959A JP3028882B2 (en) 1992-09-18 1992-09-18 Oxygen sensor mounting structure in manifold catalytic converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4249959A JP3028882B2 (en) 1992-09-18 1992-09-18 Oxygen sensor mounting structure in manifold catalytic converter

Publications (2)

Publication Number Publication Date
JPH06101516A true JPH06101516A (en) 1994-04-12
JP3028882B2 JP3028882B2 (en) 2000-04-04

Family

ID=17200736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4249959A Expired - Fee Related JP3028882B2 (en) 1992-09-18 1992-09-18 Oxygen sensor mounting structure in manifold catalytic converter

Country Status (1)

Country Link
JP (1) JP3028882B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0886216A (en) * 1994-09-19 1996-04-02 Nissan Motor Co Ltd Catalytic converter device having oxygen sensor for internal combustion engine
WO2006027904A1 (en) * 2004-09-09 2006-03-16 Isuzu Motors Limited Guide structure and exhaust emission control device
CN102762842A (en) * 2010-02-17 2012-10-31 双叶产业株式会社 Exhaust device
JP2016160915A (en) * 2015-03-05 2016-09-05 本田技研工業株式会社 Exhaust system for engine
JP2018168805A (en) * 2017-03-30 2018-11-01 日野自動車株式会社 Exhaust emission control device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0886216A (en) * 1994-09-19 1996-04-02 Nissan Motor Co Ltd Catalytic converter device having oxygen sensor for internal combustion engine
WO2006027904A1 (en) * 2004-09-09 2006-03-16 Isuzu Motors Limited Guide structure and exhaust emission control device
JP2006077675A (en) * 2004-09-09 2006-03-23 Isuzu Motors Ltd Induction structure and exhaust emission control device
US7963109B2 (en) 2004-09-09 2011-06-21 Isuzu Motors Limited Guide structure and exhaust gas purification device
CN102762842A (en) * 2010-02-17 2012-10-31 双叶产业株式会社 Exhaust device
EP2538060A1 (en) * 2010-02-17 2012-12-26 Futaba Industrial Co. Ltd. Exhaust device
EP2538060A4 (en) * 2010-02-17 2014-03-05 Futaba Ind Co Ltd Exhaust device
US8935914B2 (en) 2010-02-17 2015-01-20 Futaba Industrial Co., Ltd. Exhaust device
JP2016160915A (en) * 2015-03-05 2016-09-05 本田技研工業株式会社 Exhaust system for engine
JP2018168805A (en) * 2017-03-30 2018-11-01 日野自動車株式会社 Exhaust emission control device

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