JP6435055B2 - Exhaust pipe manufacturing method - Google Patents

Exhaust pipe manufacturing method Download PDF

Info

Publication number
JP6435055B2
JP6435055B2 JP2017542614A JP2017542614A JP6435055B2 JP 6435055 B2 JP6435055 B2 JP 6435055B2 JP 2017542614 A JP2017542614 A JP 2017542614A JP 2017542614 A JP2017542614 A JP 2017542614A JP 6435055 B2 JP6435055 B2 JP 6435055B2
Authority
JP
Japan
Prior art keywords
stirring
exhaust pipe
exhaust
members
outer shell
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.)
Active
Application number
JP2017542614A
Other languages
Japanese (ja)
Other versions
JPWO2017056256A1 (en
Inventor
俊樹 桂川
俊樹 桂川
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.)
Futaba Industrial Co Ltd
Original Assignee
Futaba Industrial Co Ltd
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 Futaba Industrial Co Ltd filed Critical Futaba Industrial Co Ltd
Publication of JPWO2017056256A1 publication Critical patent/JPWO2017056256A1/en
Application granted granted Critical
Publication of JP6435055B2 publication Critical patent/JP6435055B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/36—Arrangements for supply of additional fuel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Description

本開示は、排気の流下方向を変化させる撹拌装置が設けられた排気管の製造方法と、撹拌装置を構成する部品である撹拌部材とに関する。   The present disclosure relates to a method for manufacturing an exhaust pipe provided with a stirring device that changes a flow direction of exhaust gas, and a stirring member that is a component constituting the stirring device.

ディーゼルエンジン等の排気経路に、羽根状の部材により排気を撹拌させる排気撹拌装置を設けることが知られている（特許文献１）。このような排気撹拌装置を、尿素等の還元剤を排気中に噴射する装置の下流側や、窒素化合物の還元触媒の上流側等に隣接して配置することで、排気の浄化作用を高めることができる。   It is known to provide an exhaust stirrer that stirs exhaust gas with a blade-like member in an exhaust path of a diesel engine or the like (Patent Document 1). By arranging such an exhaust stirrer adjacent to the downstream side of the device for injecting a reducing agent such as urea into the exhaust, upstream of the nitrogen compound reduction catalyst, etc., the exhaust purification action is enhanced. Can do.

特開２０１４−４３７７８号公報JP 2014-43778 A

しかしながら、特許文献１の排気撹拌装置を排気流路に取り付ける際には、排気流路を構成する筒体の一端から排気撹拌装置を挿入した状態で、溶接により排気撹拌装置を筒体に接合させる必要があり、取付作業が困難であった。   However, when the exhaust stirrer of Patent Document 1 is attached to the exhaust flow path, the exhaust stirrer is joined to the cylinder by welding with the exhaust stirrer inserted from one end of the cylindrical body constituting the exhaust flow path. It was necessary and installation work was difficult.

排気管に撹拌装置を取り付ける作業を容易にすることが望ましい。   It is desirable to facilitate the work of attaching a stirrer to the exhaust pipe.

本開示は、排気の流下方向を変化させる撹拌装置が内部に設けられた排気管の製造方法に関する。この製造方法は、撹拌装置を構成する撹拌部材であって、流下方向を変化させるための板状の変化部と、排気管の内壁に接合するための板状の接合部とが設けられている撹拌部材を、板状部材をプレス成形することで製作し、予め定められた方向に延びる複数の外殻部材の各々における予め定められた配置位置に、接合部が該外殻部材に当接した状態で、１又は複数の撹拌部材を配置する。そして、配置位置に配置された撹拌部材の接合部を、溶接により外殻部材に接合し、撹拌部材が接合されたそれぞれの外殻部材を、撹拌部材が配置された側が対面し、且つ、各々の外殻部材に接合された撹拌部材が外殻部材の延びる方向に交差して並ぶように配置することで、撹拌装置が配された排気の流路を形成し、排気の流路を形成した状態で配置された複数の外殻部材同士を、溶接により接合すること、を特徴とする。   The present disclosure relates to a method of manufacturing an exhaust pipe in which a stirring device that changes the flow direction of exhaust gas is provided. This manufacturing method is a stirring member that constitutes a stirring device, and is provided with a plate-like changing portion for changing the flow direction and a plate-like joining portion for joining to the inner wall of the exhaust pipe. The stirring member is manufactured by press-molding a plate-like member, and the joint portion abuts against the outer shell member at a predetermined arrangement position in each of the plurality of outer shell members extending in a predetermined direction. In the state, one or more stirring members are arranged. And the joint part of the stirring member arranged in the arrangement position is joined to the outer shell member by welding, and each outer shell member to which the stirring member is joined faces the side where the stirring member is arranged, and each The stirrer joined to the outer shell member is arranged so as to cross and extend in the extending direction of the outer shell member, thereby forming an exhaust flow path in which the stirrer is arranged, and forming an exhaust flow path A plurality of outer shell members arranged in a state are joined by welding.

このような構成によれば、まず、排気管を構成する外殻部材に対し撹拌部材が溶接される。その後、これらの外殻部材同士を溶接することで、内部に撹拌装置が設けられた排気管が製造される。このため、撹拌装置を排気管の内壁に溶接する場合に比べ、容易且つ正確に溶接を行うことができる。したがって、排気管に撹拌装置を取り付ける作業が容易になる。   According to such a configuration, first, the stirring member is welded to the outer shell member constituting the exhaust pipe. Thereafter, these outer shell members are welded together to produce an exhaust pipe having a stirring device inside. For this reason, compared with the case where a stirring apparatus is welded to the inner wall of an exhaust pipe, welding can be performed easily and correctly. Therefore, the work of attaching the stirring device to the exhaust pipe becomes easy.

なお、本開示において、 配置位置とは、排気管を流下する排気を浄化する浄化部の上流側に位置しても良い。
このような構成によれば、浄化部による排気の浄化作用を向上させることができる。In the present disclosure, the arrangement position may be located on the upstream side of the purification unit that purifies the exhaust gas flowing down the exhaust pipe.
According to such a configuration, the exhaust gas purification action by the purification unit can be improved.

また、本開示において、撹拌部材には、配置位置に配置された当該撹拌部材を固定するため、予め定められた形状に形成された固定部が設けられており、配置位置に配置された撹拌部材を、固定部を介して該配置位置に固定した状態で、該撹拌部材の接合部を溶接により外殻部材に接合しても良い。   In the present disclosure, the stirring member is provided with a fixing portion formed in a predetermined shape in order to fix the stirring member arranged at the arrangement position, and the stirring member arranged at the arrangement position. May be joined to the outer shell member by welding in a state of being fixed at the arrangement position via the fixing portion.

このような構成によれば、より容易且つ正確に、外殻部材と撹拌部材とを接合できる。
また、本開示において、それぞれの外殻部材に１つの撹拌部材を配置しても良い。
このような構成によれば、撹拌部材を外殻部材に配置する作業、及び、撹拌部材と外殻部材とを溶接する作業が容易となる。このため、排気管に撹拌装置を取り付ける作業がより一層容易になる。According to such a configuration, the outer shell member and the stirring member can be joined more easily and accurately.
In the present disclosure, one stirring member may be disposed for each outer shell member.
According to such a structure, the operation | work which arrange | positions a stirring member to an outer shell member, and the operation | work which welds a stirring member and an outer shell member become easy. For this reason, the operation | work which attaches a stirring apparatus to an exhaust pipe becomes still easier.

また、本開示は、排気の流下方向を変化させるために排気管の内部に配される撹拌装置を構成する撹拌部材であって、排気管の内壁に接合される板状の接合部と、接合部の縁部に繋がっている板状の部位であって、排気に衝突することで、該排気の流下方向を変化させる変化部と、を備え、撹拌部材は、１枚の板状部材をプレス成形することで製作されたものであること、を特徴とする。   Further, the present disclosure is a stirring member that constitutes a stirring device disposed inside the exhaust pipe in order to change the flow direction of the exhaust, and includes a plate-like joint portion that is joined to the inner wall of the exhaust pipe, A stirrer that presses a single plate-like member, and a stirrer that changes a flow direction of the exhaust by colliding with the exhaust. It is produced by molding.

このような構成によれば、撹拌部材が接合された外殻部材同士を溶接することで、内部に撹拌装置が設けられた排気管を製造可能となる。このため、撹拌装置を排気管の内壁に溶接する場合に比べ、容易且つ正確に溶接を行うことができる。したがって、排気管に撹拌装置を取り付ける作業が容易になる。   According to such a configuration, it is possible to manufacture an exhaust pipe provided with a stirring device inside by welding the outer shell members joined to the stirring member. For this reason, compared with the case where a stirring apparatus is welded to the inner wall of an exhaust pipe, welding can be performed easily and correctly. Therefore, the work of attaching the stirring device to the exhaust pipe becomes easy.

図１Ａは、第１〜第３実施形態における排気経路の概略図である。図１Ｂは、第１実施形態の撹拌装置の斜視図である。図１Ｃは、排気管に配された第１実施形態の撹拌部材を、排気管の中央側から見た説明図である。図１Ｄは、排気管に配された第１実施形態の撹拌部材を、排気管の下流側から見た説明図である。図１Ｅは、排気管に配された第１実施形態の撹拌部材を側方から見た説明図である。図１Ｆは、第１実施形態の撹拌部材の斜視図である。FIG. 1A is a schematic view of an exhaust path in the first to third embodiments. FIG. 1B is a perspective view of the stirring device of the first embodiment. FIG. 1C is an explanatory view of the stirring member according to the first embodiment arranged in the exhaust pipe when viewed from the center side of the exhaust pipe. FIG. 1D is an explanatory view of the stirring member according to the first embodiment disposed in the exhaust pipe as viewed from the downstream side of the exhaust pipe. FIG. 1E is an explanatory view of the stirring member of the first embodiment arranged in the exhaust pipe as viewed from the side. FIG. 1F is a perspective view of the stirring member of the first embodiment. 図２Ａは、第１実施形態の撹拌部材が配置された第１，第２溝部材（排気管を構成する部材）の斜視図である。図２Ｂは、第１実施形態の撹拌部材が配置された第１溝部材の内側を示す説明図である。図２Ｃは、図２ＢにおけるIIC−IIC断面図である。FIG. 2A is a perspective view of first and second groove members (members constituting an exhaust pipe) in which the stirring members of the first embodiment are arranged. Drawing 2B is an explanatory view showing the inside of the 1st slot member where the stirring member of a 1st embodiment is arranged. 2C is a cross-sectional view taken along the line IIC-IIC in FIG. 2B. 図３Ａは、第１排気管の製造方法を示すフローチャートである。図３Ｂは、排気管に配された第２実施形態の撹拌装置を、排気管の下流側から見た説明図である。図３Ｃ及び図３Ｄは、排気管に配された第２実施形態の撹拌部材を側方から見た説明図である。FIG. 3A is a flowchart showing a method for manufacturing the first exhaust pipe. FIG. 3B is an explanatory view of the stirring device of the second embodiment arranged in the exhaust pipe as viewed from the downstream side of the exhaust pipe. 3C and 3D are explanatory views of the stirring member according to the second embodiment arranged in the exhaust pipe as viewed from the side. 図４Ａは、第２実施形態の撹拌部材の斜視図である。図４Ｂは、第２実施形態の撹拌部材が配置された第１，第２溝部材（排気管に含まれる部材）の斜視図である。図４Ｃは、第２実施形態の撹拌部材が配置された第１溝部材の内側を示す説明図である。図４Ｄは、図４ＣにおけるIVD−IVD断面図である。FIG. 4A is a perspective view of the stirring member of the second embodiment. FIG. 4B is a perspective view of the first and second groove members (members included in the exhaust pipe) in which the stirring members of the second embodiment are arranged. FIG. 4C is an explanatory view showing the inside of the first groove member in which the stirring member of the second embodiment is arranged. 4D is a cross-sectional view taken along the line IVD-IVD in FIG. 4C. 図５Ａは、排気管に配された第３実施形態の撹拌装置を、排気管の下流側から見た説明図である。図５Ｂは、第３実施形態の撹拌部材の斜視図である。図５Ｃは、排気管に配された第３実施形態の撹拌部材を側方から見た説明図である。図５Ｄは、排気管に配された第３実施形態の撹拌部材を側方から見た説明図である。FIG. 5A is an explanatory view of the stirring device of the third embodiment arranged in the exhaust pipe as viewed from the downstream side of the exhaust pipe. FIG. 5B is a perspective view of the stirring member of the third embodiment. FIG. 5C is an explanatory view of the stirring member of the third embodiment arranged in the exhaust pipe as viewed from the side. FIG. 5D is an explanatory view of the stirring member of the third embodiment arranged in the exhaust pipe as viewed from the side.

１…排気経路、２０…第１排気管、２１…撹拌装置配置位置、２２…第１溝部材、２３…第２溝部材、３０…上流側浄化部、４０…噴射装置、５０…第２排気管、６０…下流側浄化部、１００…撹拌装置、１１０…撹拌部材、１１１…接合部、１１２…接続部、１１３…羽根部、１１４…中央部、１１４ａ…穴部、２００…撹拌装置、２１０…撹拌部材、２１１…接合部、２１２…接続部、２１２ｃ…切欠き部、２１３…羽根部、３００…撹拌装置、３１０…撹拌部材、３１１…第１接合部、３１２…第２接合部、３１３…接続部、３１４…第１羽根部、３１５…第２羽根部、３１５…第３羽根部、３１６…第３羽根部、３１７…第４羽根部。 DESCRIPTION OF SYMBOLS 1 ... Exhaust path, 20 ... 1st exhaust pipe, 21 ... Stirring device arrangement position, 22 ... 1st groove member, 23 ... 2nd groove member, 30 ... Upstream purification | cleaning part, 40 ... Injection apparatus, 50 ... 2nd exhaust Pipe: 60 ... downstream side purification unit, 100 ... stirring device, 110 ... stirring member, 111 ... joining portion, 112 ... connecting portion, 113 ... blade portion, 114 ... central portion, 114a ... hole, 200 ... stirring device, 210 DESCRIPTION OF SYMBOLS ... Stirring member 211 ... Joint part 212 ... Connection part 212c ... Notch part, 213 ... Blade | wing part, 300 ... Stirrer, 310 ... Stirring member, 311 ... 1st junction part, 312 ... 2nd joint part, 313 ... connection part, 314 ... 1st blade part, 315 ... 2nd blade part, 315 ... 3rd blade part, 316 ... 3rd blade part, 317 ... 4th blade part.

以下、本開示の実施形態について図面を用いて説明する。なお、本開示の実施の形態は、下記の実施形態に何ら限定されることはなく、本開示の技術的範囲に属する限り種々の形態を採りうる。   Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Embodiments of the present disclosure are not limited to the following embodiments, and various forms can be adopted as long as they belong to the technical scope of the present disclosure.

［第１実施形態］
［構成の説明］
第１実施形態の排気経路１は、ディーゼルエンジンから排出された排気を浄化して車外に排出する管状の装置である（図１Ａ）。排気経路１は、ステンレス鋼等から構成されている。以後、排気経路１における排気の流れる方向の上流側，下流側を、単に上流側，下流側と記載する。[First Embodiment]
[Description of configuration]
The exhaust path 1 of the first embodiment is a tubular device that purifies the exhaust discharged from the diesel engine and discharges it outside the vehicle (FIG. 1A). The exhaust path 1 is made of stainless steel or the like. Hereinafter, the upstream side and the downstream side in the exhaust flow direction in the exhaust path 1 are simply referred to as the upstream side and the downstream side.

排気経路１には、上流側浄化部３０及び下流側浄化部６０が設けられている。上流側浄化部３０及び下流側浄化部６０は、排気経路１に含まれる他の排気管１０，５０等に比べて径が太くなっている。上流側浄化部３０及び下流側浄化部６０には、それぞれ、排気を浄化するための浄化装置が配されている。   In the exhaust path 1, an upstream purification unit 30 and a downstream purification unit 60 are provided. The upstream side purification unit 30 and the downstream side purification unit 60 are thicker than the other exhaust pipes 10 and 50 included in the exhaust path 1. Each of the upstream side purification unit 30 and the downstream side purification unit 60 is provided with a purification device for purifying the exhaust gas.

上流側浄化部３０に配された浄化装置は、例えば、ＣＯやＨＯ等を酸化させる酸化触媒３２、排気中の煤等の微粒子を捕集するＤＰＦ３１（ディーゼルパティキュレートフィルタ）等である。また、下流側浄化部６０に配された浄化装置は、例えば、排気中のＮＯｘを還元するＳＣＲ触媒（Selective Catalytic Reduction）等である。さらに、下流側浄化部６０の上流側（上流側浄化部３０の下流側）には、噴射装置４０が設けられている。噴射装置４０は、排気経路１を流下する排気中にＳＣＲ還元剤（例えば、尿素水）を噴射する。   The purification device disposed in the upstream purification unit 30 is, for example, an oxidation catalyst 32 that oxidizes CO, HO, or the like, a DPF 31 (diesel particulate filter) that collects particulates such as soot in the exhaust, and the like. The purification device disposed in the downstream purification unit 60 is, for example, an SCR catalyst (Selective Catalytic Reduction) that reduces NOx in the exhaust gas. Further, an injection device 40 is provided on the upstream side of the downstream side purification unit 60 (downstream side of the upstream side purification unit 30). The injection device 40 injects an SCR reducing agent (for example, urea water) into the exhaust gas flowing down the exhaust path 1.

そして、第１排気管２０、及び、第２排気管５０には、それぞれ、撹拌装置１００が設けられている（図１Ｂ）。第１排気管２０は、上流側浄化部３０の上流側に位置する。また、第２排気管５０は、下流側浄化部６０の上流側に位置する。撹拌装置１００は、排気経路１を流下する排気の流下方向を変化させる。撹拌装置１００は、排気の流れを分散させることで、上流側浄化部３０や下流側浄化部６０に配された浄化装置による浄化作用を向上させる。   The first exhaust pipe 20 and the second exhaust pipe 50 are each provided with a stirring device 100 (FIG. 1B). The first exhaust pipe 20 is located on the upstream side of the upstream side purification unit 30. Further, the second exhaust pipe 50 is located on the upstream side of the downstream side purification unit 60. The stirring device 100 changes the flow direction of the exhaust gas flowing down the exhaust path 1. The agitation device 100 improves the purification action of the purification device disposed in the upstream purification unit 30 or the downstream purification unit 60 by dispersing the flow of exhaust.

撹拌装置１００の用途や配置位置は、これに限定されない。撹拌装置１００は、様々な用途に応じて、排気経路１上の様々な位置に設けても良い。また、ディーゼルエンジンの排気経路１に限らず、ガソリンエンジン等といった様々な内燃機関の排気経路に撹拌装置１００を設けても良い。   The application and arrangement position of the stirring device 100 are not limited to this. The stirring device 100 may be provided at various positions on the exhaust path 1 according to various applications. Moreover, you may provide the stirring apparatus 100 not only in the exhaust path 1 of a diesel engine but in the exhaust paths of various internal combustion engines, such as a gasoline engine.

次に、第１実施形態の撹拌装置１００の構成について説明する。撹拌装置１００は、２つの撹拌部材１１０を含む。２つの撹拌部材１１０は、同じ形状である（図１Ｃ〜１Ｆ）。   Next, the structure of the stirring apparatus 100 of 1st Embodiment is demonstrated. The stirring device 100 includes two stirring members 110. The two stirring members 110 have the same shape (FIGS. 1C to 1F).

撹拌部材１１０は、例えばステンレス鋼等の耐食性の高い金属材料により構成されている。撹拌部材１１０は、細長い板状の部位である。撹拌部材１１０は、後述する羽根部１１３に相当する２つの部分が側方（同方向）に突出した細長い板状部材を、プレス形成することで生成される。   The stirring member 110 is made of a metal material having high corrosion resistance such as stainless steel. The stirring member 110 is an elongated plate-like part. The agitating member 110 is generated by press-forming an elongated plate-like member in which two portions corresponding to a blade portion 113 to be described later project laterally (in the same direction).

撹拌部材１１０は、略Ｍ字型に形成されている。撹拌部材１１０は、２つの接合部１１１と、２つの接続部１１２と、２つの羽根部１１３と、１つの中央部１１４とを含む。
接合部１１１は、矩形の部位である。接合部１１１は、溶接により排気管の内壁に接合される。接合部１１１は、撹拌部材１１０における長手方向の両端に設けられている。接合部１１１は、短手方向が排気管方向（排気管の延びる方向）に沿った状態で、排気管の内壁に接合される。接合部１１１は、短手方向に沿って見ると、接合される内壁の形状に合わせて円弧状に湾曲している。The stirring member 110 is formed in a substantially M shape. The stirring member 110 includes two joint portions 111, two connection portions 112, two blade portions 113, and one central portion 114.
The joint part 111 is a rectangular part. The joining part 111 is joined to the inner wall of the exhaust pipe by welding. The joint portions 111 are provided at both ends of the stirring member 110 in the longitudinal direction. The joining portion 111 is joined to the inner wall of the exhaust pipe in a state where the short side direction is along the exhaust pipe direction (the direction in which the exhaust pipe extends). When viewed along the short direction, the joint portion 111 is curved in an arc shape in accordance with the shape of the inner wall to be joined.

接続部１１２は、矩形の部位である。接続部１１２は、接合部１１１と羽根部１１３とを繋ぐ。そして、撹拌部材１１０が排気管に配された時、接続部１１２の長手方向は、排気管の内壁から中央に向かって延びる。また、この時、接続部１１２の短手方向は、排気管方向に沿った状態となる。   The connection part 112 is a rectangular part. The connection part 112 connects the joint part 111 and the blade part 113. When the stirring member 110 is arranged in the exhaust pipe, the longitudinal direction of the connecting portion 112 extends from the inner wall of the exhaust pipe toward the center. At this time, the short side direction of the connecting portion 112 is in a state along the exhaust pipe direction.

羽根部１１３は、略三角形状の板状の部位である。２つの羽根部１１３は、撹拌部材１１０の側方における同じ側に位置する。羽根部１１３は、各接続部１１２の長手方向に延びる縁部から突出している。羽根部１１３は、撹拌部材１１０の短手方向に対し傾いている。そして、撹拌部材１１０が排気管に配された時、羽根部１１３は、排気管方向に対して傾いた状態となる。この時、排気管を流れる排気が羽根部１１３に衝突することで、排気が拡散される。   The blade part 113 is a substantially triangular plate-like part. The two blade portions 113 are located on the same side of the stirring member 110. The blade portion 113 protrudes from an edge portion extending in the longitudinal direction of each connection portion 112. The blade portion 113 is inclined with respect to the short direction of the stirring member 110. When the stirring member 110 is disposed in the exhaust pipe, the blade portion 113 is inclined with respect to the exhaust pipe direction. At this time, the exhaust flowing through the exhaust pipe collides with the blade portion 113, so that the exhaust is diffused.

中央部１１４は、２つの接続部１１２を繋ぐ矩形の部位である。中央部１１４には、円形の穴部１１４ａが形成されている。詳細は後述するが、穴部１１４ａは、撹拌部材１１０を接合する際に用いられる。そして、撹拌部材１１０が排気管に配された時、中央部１１４は、排気管内部における中央に位置する。   The central portion 114 is a rectangular portion that connects the two connecting portions 112. A circular hole 114a is formed in the central portion 114. Although details will be described later, the hole 114a is used when the stirring member 110 is joined. When the stirring member 110 is disposed in the exhaust pipe, the central portion 114 is located at the center inside the exhaust pipe.

次に、撹拌部材１１０の配置状態について説明する。図２Ａ〜２Ｃは、撹拌装置１００が、第１排気管２０における円筒状の部分である撹拌装置配置位置２１に配置された様子を示している。第１排気管２０は、上流側浄化部３０の上流側に隣接する。第１排気管２０は、全体としてテーパ形状になっている。   Next, the arrangement state of the stirring member 110 will be described. 2A to 2C show a state where the stirring device 100 is disposed at the stirring device arrangement position 21 which is a cylindrical portion in the first exhaust pipe 20. The first exhaust pipe 20 is adjacent to the upstream side of the upstream purification unit 30. The first exhaust pipe 20 has a tapered shape as a whole.

撹拌装置１００に含まれる２つの撹拌部材１１０は、排気管方向に直交する向きに並んで第１排気管２０の内部に配置される。２つの撹拌部材１１０は、線対称となる。２つの撹拌部材１１０に形成された複数の羽根部１１３は、下流側から見ると、反時計回りの方向に傾いている。なお、複数の羽根部１１３は、時計回りの方向に傾いていても良い。   The two stirring members 110 included in the stirring device 100 are arranged inside the first exhaust pipe 20 side by side in a direction orthogonal to the exhaust pipe direction. The two stirring members 110 are line symmetric. When viewed from the downstream side, the plurality of blade portions 113 formed on the two stirring members 110 are inclined in the counterclockwise direction. Note that the plurality of blade portions 113 may be inclined in a clockwise direction.

より詳しくは、第１排気管２０は、断面が半円状の第１溝部材２２及び第２溝部材２３を含む。撹拌部材１１０は、第１溝部材２２における撹拌装置配置位置２１と、第２溝部材２３における撹拌装置配置位置２１とに１つずつ配置される。この時、羽根部１１３は、下流側に位置する。また、撹拌部材１１０の短手方向は、排気管方向に沿った状態となる。また、２つの接合部１１１は、溝部材の内壁に接合された状態となる。   More specifically, the first exhaust pipe 20 includes a first groove member 22 and a second groove member 23 having a semicircular cross section. The stirring members 110 are arranged one by one at the stirring device arrangement position 21 in the first groove member 22 and at the stirring device arrangement position 21 in the second groove member 23. At this time, the blade | wing part 113 is located in the downstream. Further, the short direction of the stirring member 110 is in a state along the exhaust pipe direction. Moreover, the two joining parts 111 will be in the state joined to the inner wall of the groove member.

なお、第２排気管５０においても、同様にして撹拌装置１００が配置される。
［排気管の製造方法］
次に、撹拌装置１００が設けられた第１排気管２０の製造方法について説明する（図３Ａ）。In the second exhaust pipe 50, the stirring device 100 is similarly arranged.
[Exhaust pipe manufacturing method]
Next, the manufacturing method of the 1st exhaust pipe 20 provided with the stirring apparatus 100 is demonstrated (FIG. 3A).

Ｓ１００では、予め定められた形状の板状部材をプレス成形することで、撹拌装置１００に含まれる撹拌部材１１０を製作する。なお、該板状部材は、例えばステンレス鋼等により構成されている。   In S100, the stirring member 110 included in the stirring device 100 is manufactured by press-molding a plate-shaped member having a predetermined shape. The plate-like member is made of, for example, stainless steel.

Ｓ１０５では、予め定められた形状の板状部材をプレス成形することで、第１，第２溝部材２２，２３を製作する（図２Ａ〜２Ｃ）。第１，第２溝部材２２，２３には、それぞれ、予め定められた方向に延びる溝部２２ａ，２３ａが形成されている。なお、該板状部材は、例えばステンレス鋼等により構成されている。   In S105, the 1st, 2nd groove members 22 and 23 are manufactured by press-molding the plate-shaped member of a predetermined shape (FIGS. 2A-2C). The first and second groove members 22 and 23 are formed with groove portions 22a and 23a that extend in predetermined directions, respectively. The plate-like member is made of, for example, stainless steel.

Ｓ１１０では、上述した態様で、撹拌部材１１０を、第１溝部材２２の撹拌装置配置位置２１、及び、第２溝部材２３の撹拌装置配置位置２１に１つずつ配置する。この時、撹拌部材１１０の２つの接合部１１１は、溝部材の内壁に当接した状態となる。   In S110, the stirring member 110 is arrange | positioned 1 each at the stirring apparatus arrangement position 21 of the 1st groove member 22, and the stirring apparatus arrangement position 21 of the 2nd groove member 23 by the aspect mentioned above. At this time, the two joint portions 111 of the stirring member 110 are in contact with the inner wall of the groove member.

Ｓ１１５では、第１，第２溝部材２２，２３に配置された撹拌部材１１０を固定する。具体的には、例えば、撹拌部材１１０の穴部１１４ａに棒状部材を挿通する。そして、該棒状部材を側方等から支持することで、撹拌部材１１０を固定しても良い。その後、例えばスポット溶接により、接合部１１１と溝部材の内壁とを接合する。なお、スポット溶接に替えて、ミグ溶接やティグ溶接を行っても良い。   In S115, the stirring member 110 disposed in the first and second groove members 22 and 23 is fixed. Specifically, for example, a rod-like member is inserted into the hole 114a of the stirring member 110. Then, the stirring member 110 may be fixed by supporting the rod-like member from the side or the like. Thereafter, the joint portion 111 and the inner wall of the groove member are joined by, for example, spot welding. Note that MIG welding or TIG welding may be performed instead of spot welding.

Ｓ１２０では、撹拌部材１１０が接合された第１，第２溝部材２２，２３により、第１排気管２０を組み立てる。具体的には、第１溝部材２２における溝部２２ａに沿った第１縁部２２ｂと、第２溝部材２３における溝部２３ａに沿った第１縁部２３ｂとを当接させる。これと同時に、第１溝部材２２における溝部２２ａに沿った第２縁部２２ｃと、第２溝部材２３における溝部２３ａに沿った第２縁部２３ｃとを当接させる。これにより、第１溝部材２２の溝部２２ａと、第２溝部材２３の溝部２３ａが対面した状態になる。そして、撹拌装置１００が配された排気の流路が形成される。また、この時、第１，第２溝部材２２，２３に接合された２つの撹拌部材１１０は、溝部２２ａ，２３ａの方向（排気管方向）に直交して並んだ状態（撹拌装置１００が構成された状態）となる。   In S120, the first exhaust pipe 20 is assembled by the first and second groove members 22 and 23 to which the stirring member 110 is joined. Specifically, the first edge 22b along the groove 22a in the first groove member 22 and the first edge 23b along the groove 23a in the second groove member 23 are brought into contact with each other. At the same time, the second edge 22c along the groove 22a in the first groove member 22 and the second edge 23c along the groove 23a in the second groove member 23 are brought into contact with each other. Thereby, the groove part 22a of the 1st groove member 22 and the groove part 23a of the 2nd groove member 23 will be in the state which faced. And the flow path of the exhaust_gas | exhaustion in which the stirring apparatus 100 was distribute | arranged is formed. At this time, the two stirring members 110 joined to the first and second groove members 22 and 23 are arranged in a direction perpendicular to the direction of the groove portions 22a and 23a (exhaust pipe direction) (the stirring device 100 is configured). State).

Ｓ１２５では、Ｓ１２０にて組み立てられた第１，第２溝部材２２，２３を、溶接により接合させる。これにより、撹拌装置配置位置２１に撹拌装置１００が配された第１排気管２０が製作される。   In S125, the first and second groove members 22 and 23 assembled in S120 are joined by welding. Thereby, the 1st exhaust pipe 20 with which the stirring apparatus 100 was distribute | arranged to the stirring apparatus arrangement position 21 is manufactured.

なお、第２排気管５０も、同様の製造方法により製造される。
また、第１，第２排気管２０，５０に限らず、撹拌装置が配された様々な形状の排気管を、同様の製造方法により製造できる。The second exhaust pipe 50 is also manufactured by a similar manufacturing method.
In addition to the first and second exhaust pipes 20 and 50, various shapes of exhaust pipes provided with a stirring device can be manufactured by the same manufacturing method.

［効果］
第１実施形態の第１排気管２０の製造方法によれば、まず、第１，第２溝部材２２，２３に対し撹拌部材１１０が溶接される。その後、第１，第２溝部材２２，２３同士を溶接することで、内部に撹拌装置１００が設けられた第１排気管２０が製造される。このため、撹拌装置１００を第１排気管２０の内壁に溶接する場合に比べ、容易且つ正確に溶接を行うことができる。したがって、排気管に撹拌装置を取り付ける作業が容易になる。[effect]
According to the method for manufacturing the first exhaust pipe 20 of the first embodiment, first, the stirring member 110 is welded to the first and second groove members 22 and 23. Then, the 1st exhaust pipe 20 with which the stirring apparatus 100 was provided inside is manufactured by welding the 1st, 2nd groove members 22 and 23 mutually. For this reason, compared with the case where the stirring apparatus 100 is welded to the inner wall of the 1st exhaust pipe 20, it can weld easily and correctly. Therefore, the work of attaching the stirring device to the exhaust pipe becomes easy.

また、第１排気管２０の上流側に繋がる円筒状の排気管１０は、第１排気管２０の下流側に繋がる上流側浄化部３０よりも径が小さい。このため、排気管１０を通過して上流側浄化部３０に流入した排気の経路は、中央に偏る。これにより、排気が浄化装置に一様に衝突しなくなる。これに対し、上流側浄化部３０の上流側に撹拌装置１００を設けることで、撹拌装置１００を通過する排気の流下経路が均一に分散される。その結果、上流側浄化部３０に流入した排気は、一様に浄化装置に衝突する。換言すれば、排気が浄化装置に衝突する際の一様度が高くなる。これにより、上流側浄化部３０に配された浄化装置の浄化作用が向上する。   In addition, the cylindrical exhaust pipe 10 connected to the upstream side of the first exhaust pipe 20 has a smaller diameter than the upstream purification unit 30 connected to the downstream side of the first exhaust pipe 20. For this reason, the route of the exhaust gas that has passed through the exhaust pipe 10 and has flowed into the upstream purification unit 30 is biased toward the center. Thereby, exhaust does not collide uniformly with a purification apparatus. On the other hand, by providing the agitation device 100 on the upstream side of the upstream purification unit 30, the flow down path of the exhaust gas passing through the agitation device 100 is uniformly dispersed. As a result, the exhaust gas flowing into the upstream side purification unit 30 uniformly collides with the purification device. In other words, the uniformity when the exhaust gas collides with the purification device is increased. As a result, the purification action of the purification device disposed in the upstream purification unit 30 is improved.

また、第２排気管５０に設けられた撹拌装置１００は、ＳＣＲ還元剤の噴射装置４の下流側に位置する。このため、噴射装置４から噴射されたＳＣＲ還元剤を含んだ排気は、撹拌装置１００を通過する。これにより、排気中のＳＣＲ還元剤が一様に拡散する。換言すれば、排気中のＳＣＲ還元剤の一様度が高くなる。その結果、下流側浄化部６０に配された浄化装置による浄化作用が向上する。   The stirring device 100 provided in the second exhaust pipe 50 is located downstream of the SCR reducing agent injection device 4. For this reason, the exhaust gas containing the SCR reducing agent injected from the injection device 4 passes through the stirring device 100. As a result, the SCR reducing agent in the exhaust gas diffuses uniformly. In other words, the uniformity of the SCR reducing agent in the exhaust becomes high. As a result, the purification action by the purification device arranged in the downstream purification unit 60 is improved.

［第２実施形態］
［構成の説明］
次に、第２実施形態の撹拌装置２００の構成について説明する（図３Ｂ〜４Ａ）。撹拌装置２００は、第１実施形態の撹拌装置１００と同様の機能を有する。また、撹拌装置２００は、第１実施形態と同様の材料により構成される。しかし、撹拌装置２００は、４つの撹拌部材２１０を含む点で、第１実施形態と相違する。また、撹拌部材２１０の形状が第１実施形態と相違する。なお、各撹拌部材２１０は、同じ形状である。[Second Embodiment]
[Description of configuration]
Next, the structure of the stirring apparatus 200 of 2nd Embodiment is demonstrated (FIGS. 3B-4A). The stirring device 200 has the same function as the stirring device 100 of the first embodiment. Moreover, the stirring apparatus 200 is comprised with the material similar to 1st Embodiment. However, the stirring device 200 is different from the first embodiment in that it includes four stirring members 210. Further, the shape of the stirring member 210 is different from that of the first embodiment. Each stirring member 210 has the same shape.

撹拌部材２１０は、後述する羽根部２１３に相当する２つの部分が側方（同方向）に突出した細長い板状部材を、プレス形成することで生成される。撹拌部材２１０は、細長い板状の部位である。撹拌部材２１０は、略Ｚ字型に形成されている。撹拌部材２１０は、１つの接合部２１１と、１つの接続部２１２と、２つの羽根部２１３とを含む。   The agitating member 210 is generated by press-forming an elongated plate-like member in which two portions corresponding to a blade portion 213, which will be described later, protrude laterally (in the same direction). The stirring member 210 is an elongated plate-like part. The stirring member 210 is formed in a substantially Z shape. The stirring member 210 includes one joint portion 211, one connection portion 212, and two blade portions 213.

接合部２１１は、矩形の部位である。接合部２１１は、溶接により排気管の内壁に接合される。接合部２１１は、第１実施形態の接合部１１１と同様に構成されている。
接続部２１２は、Ｖ字状に屈曲した細長い部位である。接続部２１２は、接合部２１１と羽根部２１３を繋ぐ。接続部２１２は、一端が接合部２１１に繋がっている。そして、撹拌部材２１０が排気管に配された時、接続部２１２は、両端が排気管の内壁側に位置する。また、この時、接続部２１２の屈曲した部分は、排気管の中央に位置する。また、この時、接続部２１２の短手方向は、排気管方向に沿った状態となる。The joining part 211 is a rectangular part. The joining part 211 is joined to the inner wall of the exhaust pipe by welding. The joining part 211 is configured similarly to the joining part 111 of the first embodiment.
The connecting portion 212 is an elongated portion bent in a V shape. The connection part 212 connects the joint part 211 and the blade part 213. One end of the connection part 212 is connected to the joint part 211. When the stirring member 210 is disposed in the exhaust pipe, both ends of the connection part 212 are located on the inner wall side of the exhaust pipe. At this time, the bent portion of the connecting portion 212 is located at the center of the exhaust pipe. At this time, the short side direction of the connecting portion 212 is in a state along the exhaust pipe direction.

また、接続部２１２は、矩形の第１部分２１２ａと、矩形の第２部分２１２ｂとを含む。第１部分２１２ａは、接合部２１１に繋がる。また、第２部分２１２ｂは、撹拌部材２１０の端部に位置する。第１，第２部分２１２ａ，２１２ｂにおける長手方向に延びる一方の縁部には、それぞれ、１つの羽根部２１３が設けられている。そして、第１部分２１２ａにおける羽根部２１３に対面する縁部には、半円状の切欠き部２１２ｃが形成されている。詳細は後述するが、切欠き部２１２ｃは、撹拌部材２１０を接合する際に用いられる。   The connecting portion 212 includes a rectangular first portion 212a and a rectangular second portion 212b. The first portion 212a is connected to the joint portion 211. The second portion 212b is located at the end of the stirring member 210. One blade portion 213 is provided on one edge portion extending in the longitudinal direction of each of the first and second portions 212a and 212b. A semicircular cutout 212c is formed at the edge of the first portion 212a facing the blade 213. Although the details will be described later, the notch 212c is used when the stirring member 210 is joined.

羽根部２１３は、略三角形状の板状の部位である。２つの羽根部２１３は、撹拌部材２１０の側方における同じ側に位置する。羽根部２１３は、第１，第２部分２１２ａ，２１２ｂの各々の長手方向に延びる縁部から突出している。そして、羽根部２１３は、第１実施形態と同様、撹拌部材２１０の短手方向に対し傾いている。   The wing | blade part 213 is a substantially triangular plate-shaped site | part. The two blade parts 213 are located on the same side of the stirring member 210. The wing | blade part 213 protrudes from the edge part extended in the longitudinal direction of each of the 1st, 2nd part 212a, 212b. And the blade | wing part 213 inclines with respect to the transversal direction of the stirring member 210 similarly to 1st Embodiment.

次に、撹拌部材２１０の配置状態について説明する。図４Ｂ〜４Ｄは、撹拌装置２００が、第１排気管２０の撹拌装置配置位置２１に配置された様子を示している。
撹拌装置２００に含まれる４つの撹拌部材２１０は、排気管方向に直交する向きに４つ並んだ状態で第１排気管２０の内部に配置される。この時、４つの撹拌部材２１０は、第１排気管２０の内壁に沿って周方向に並ぶ。４つの撹拌部材２１０に形成された複数の羽根部２１３は、下流側から見ると、反時計回りの方向に傾いている。なお、複数の羽根部２１３は、時計回りの方向に傾いていても良い。Next, the arrangement state of the stirring member 210 will be described. 4B to 4D illustrate a state in which the stirring device 200 is disposed at the stirring device placement position 21 of the first exhaust pipe 20.
The four stirring members 210 included in the stirring device 200 are arranged inside the first exhaust pipe 20 in a state in which four stirring members 210 are arranged in a direction orthogonal to the exhaust pipe direction. At this time, the four stirring members 210 are arranged in the circumferential direction along the inner wall of the first exhaust pipe 20. When viewed from the downstream side, the plurality of blade portions 213 formed on the four stirring members 210 are inclined in the counterclockwise direction. Note that the plurality of blade portions 213 may be inclined in the clockwise direction.

より詳しくは、撹拌部材２１０は、第１溝部材２２における撹拌装置配置位置２１と、第２溝部材２３における撹拌装置配置位置２１とに２つずつ配置される。各溝部材に配された２つの撹拌部材２１０は、排気管方向に直交する向きに並ぶ。この時、羽根部２１３は、下流側に位置する。また、撹拌部材２１０の短手方向は、排気管方向に沿った状態となる。また、接合部２１１は、溝部材の内壁に接合された状態となる。また、接合部２１１は、隣接する他の撹拌部材２１０の接続部２１２と隣り合う状態となる。   More specifically, two stirring members 210 are disposed at each of the stirring device arrangement position 21 in the first groove member 22 and the stirring device placement position 21 in the second groove member 23. The two stirring members 210 arranged in each groove member are arranged in a direction orthogonal to the exhaust pipe direction. At this time, the blade portion 213 is located on the downstream side. Further, the short direction of the stirring member 210 is in a state along the exhaust pipe direction. Moreover, the joining part 211 will be in the state joined to the inner wall of the groove member. Moreover, the joining part 211 will be in the state adjacent to the connection part 212 of the other adjacent stirring member 210. FIG.

なお、第２排気管５０においても、同様にして撹拌装置１００が配置される。
［排気管の製造方法］
次に、第１排気管２０の製造方法について説明する。第２実施形態の第１排気管２０の製造方法は、第１実施形態と同様である。しかし、Ｓ１１５が第１実施形態と相違する。In the second exhaust pipe 50, the stirring device 100 is similarly arranged.
[Exhaust pipe manufacturing method]
Next, a method for manufacturing the first exhaust pipe 20 will be described. The manufacturing method of the 1st exhaust pipe 20 of 2nd Embodiment is the same as that of 1st Embodiment. However, S115 is different from the first embodiment.

Ｓ１１５では、第１実施形態と同様、第１，第２溝部材２２，２３に配置された撹拌部材２１０を固定する。具体的には、例えば、撹拌部材２１０の切欠き部２１２ｃに、固定部材を嵌合させる。そして、固定部材を側方等から支持することで、撹拌部材１１０を固定しても良い。その後、第１実施形態と同様にして、溶接により接合部２１１と溝部材の内壁とを接合する。   In S115, the stirring member 210 arranged in the first and second groove members 22 and 23 is fixed as in the first embodiment. Specifically, for example, the fixing member is fitted into the notch 212c of the stirring member 210. Then, the stirring member 110 may be fixed by supporting the fixing member from the side or the like. Thereafter, similarly to the first embodiment, the joint portion 211 and the inner wall of the groove member are joined by welding.

なお、第２排気管５０も、同様の製造方法により製造される。
また、第１，第２排気管２０，５０に限らず、撹拌装置が配された様々な形状の排気管を、同様の製造方法により製造できる。The second exhaust pipe 50 is also manufactured by a similar manufacturing method.
In addition to the first and second exhaust pipes 20 and 50, various shapes of exhaust pipes provided with a stirring device can be manufactured by the same manufacturing method.

［効果］
第２実施形態によれば、第１実施形態と同様の効果を奏する。
［第３実施形態］
［構成の説明］
次に、第３実施形態の撹拌装置３００の構成について説明する（図５Ａ〜５Ｄ）。撹拌装置３００は、第１実施形態の撹拌装置１００と同様の機能を有する。また、撹拌装置３００は、第１実施形態と同様の材料により構成されている。また、撹拌装置３００は、第１実施形態と同様に２つの撹拌部材３１０を含む。しかし、撹拌部材３１０の形状が第１実施形態と相違している。なお、各撹拌部材３１０は、同じ形状である。[effect]
According to 2nd Embodiment, there exists an effect similar to 1st Embodiment.
[Third Embodiment]
[Description of configuration]
Next, the structure of the stirring apparatus 300 of 3rd Embodiment is demonstrated (FIGS. 5A-5D). The stirring device 300 has the same function as the stirring device 100 of the first embodiment. Moreover, the stirring apparatus 300 is comprised with the material similar to 1st Embodiment. In addition, the stirring device 300 includes two stirring members 310 as in the first embodiment. However, the shape of the stirring member 310 is different from that of the first embodiment. Each stirring member 310 has the same shape.

撹拌部材３１０は、後述する第１〜第４羽根部３１４〜３１７に相当する４つの部分が側方（同方向）に突出した細長い板状部材を、プレス形成することで生成される。撹拌部材３１０は、細長い板状の部位である。撹拌部材３１０は、略Ｍ字型に形成されている。撹拌部材３１０は、２つの接合部（第１，第２接合部３１１，３１２）と、１つの接続部３１３と、４つの羽根部（第１〜第４羽根部３１４〜３１７）とを含む。   The stirring member 310 is generated by press-forming an elongated plate-like member in which four portions corresponding to first to fourth blade portions 314 to 317, which will be described later, protrude laterally (in the same direction). The stirring member 310 is an elongated plate-like part. The stirring member 310 is formed in a substantially M shape. The stirring member 310 includes two joint portions (first and second joint portions 311 and 312), one connection portion 313, and four blade portions (first to fourth blade portions 314 to 317).

第１，第２接合部３１１，３１２は、矩形の部位である。第１，第２接合部３１１，３１２は、溶接により排気管の内壁に接合される。第１，第２接合部３１１，３１２は、撹拌部材３１０における長手方向の両端に設けられている。なお、第１接合部３１１の長手方向の長さは、第２接合部３１２の長手方向の長さの約２倍程度である。第１，第２接合部３１１，３１２は、短手方向が排気管方向に沿った状態で、排気管の内壁に接合される。第１，第２接合部３１１，３１２は、短手方向に沿って見ると、接合される内壁の形状に合わせて円弧状に湾曲している。   The first and second joint portions 311 and 312 are rectangular portions. The first and second joint portions 311 and 312 are joined to the inner wall of the exhaust pipe by welding. The first and second joint portions 311 and 312 are provided at both ends of the stirring member 310 in the longitudinal direction. The length of the first joint 311 in the longitudinal direction is about twice the length of the second joint 312 in the longitudinal direction. The first and second joint portions 311 and 312 are joined to the inner wall of the exhaust pipe in a state where the short side direction is along the exhaust pipe direction. The first and second joint portions 311 and 312 are curved in an arc shape according to the shape of the inner wall to be joined when viewed along the short direction.

接続部３１３は、Ｖ字状に屈曲した細長い部位である。接続部３１３は、一端が第１接合部３１１の縁部に繋がっている。また、接続部３１３は、他端が第２接合部３１２の縁部に繋がっている。そして、撹拌部材３１０が排気管に配された時、接続部３１３の両端は、排気管の内壁側に位置する。また、この時、接続部３１３の屈曲した部分は、排気管の中央に位置する。また、この時、接続部３１３の短手方向は、排気管方向に沿った状態となる。   The connecting portion 313 is an elongated portion bent in a V shape. One end of the connection portion 313 is connected to the edge of the first joint portion 311. The other end of the connection portion 313 is connected to the edge of the second joint portion 312. When the stirring member 310 is disposed on the exhaust pipe, both ends of the connection portion 313 are located on the inner wall side of the exhaust pipe. At this time, the bent portion of the connecting portion 313 is located at the center of the exhaust pipe. At this time, the short side direction of the connecting portion 313 is in a state along the exhaust pipe direction.

また、接続部３１３は、矩形の第１部分３１３ａと、矩形の第２部分３１３ｂとを含む。第１部分３１３ａは、第１接合部３１１に繋がる。また、第２部分３１３ｂは、第２接合部３１２に繋がる。   The connecting portion 313 includes a rectangular first portion 313a and a rectangular second portion 313b. The first portion 313 a is connected to the first joint portion 311. The second portion 313b is connected to the second joint portion 312.

第１〜第４羽根部３１４〜３１７は、撹拌部材３１０の側方における同じ側に設けられている。
第１羽根部３１４は、第１接合部３１１の長手方向に延びる縁部に設けられている。第１羽根部３１４は、撹拌部材３１０の一端に隣接する。第１羽根部３１４は、根元部３１４ａとフィン部３１４ｂとを含む。根元部３１４ａは、第１接合部３１１から延びている。また、フィン部３１４ｂは、略三角形状の板状の部位である。フィン部３１４ｂは、根元部３１４ａの先端から突出している。The first to fourth blade portions 314 to 317 are provided on the same side of the stirring member 310.
The first blade portion 314 is provided at an edge portion extending in the longitudinal direction of the first joint portion 311. The first blade portion 314 is adjacent to one end of the stirring member 310. The first blade portion 314 includes a root portion 314a and a fin portion 314b. The root portion 314 a extends from the first joint portion 311. Moreover, the fin part 314b is a substantially triangular plate-shaped part. The fin portion 314b protrudes from the tip of the root portion 314a.

第２羽根部３１５は、略三角形状の板状の部位である。第２羽根部３１５は、第１部分３１３ａの長手側の縁部から突出している。第２羽根部３１５は、フィン部３１４ｂに隣接する。   The 2nd blade | wing part 315 is a substantially triangular plate-shaped site | part. The 2nd blade | wing part 315 protrudes from the edge part of the longitudinal side of the 1st part 313a. The second blade portion 315 is adjacent to the fin portion 314b.

第３羽根部３１６は、略三角形状の板状の部位である。第３羽根部３１６は、第２部分３１３ｂの長手側の縁部から突出している。第３羽根部３１６は、第２羽根部３１５に隣接する。   The 3rd blade | wing part 316 is a substantially triangular plate-shaped site | part. The third blade portion 316 protrudes from the longitudinal edge of the second portion 313b. The third blade portion 316 is adjacent to the second blade portion 315.

第４羽根部３１７は、第２接合部３１２の長手方向に延びる縁部に設けられている。第４羽根部３１７は、撹拌部材３１０の他端に隣接する。第４羽根部３１７は、根元部３１７ａとフィン部３１７ｂとを含む。根元部３１７ａは、第２接合部３１２から延びている。また、フィン部３１７ｂは、略三角形状の板状の部位である。フィン部３１４ｂは、根元部３１７ａの先端から突出している。   The fourth blade portion 317 is provided at an edge portion extending in the longitudinal direction of the second joint portion 312. The fourth blade portion 317 is adjacent to the other end of the stirring member 310. The fourth blade portion 317 includes a root portion 317a and a fin portion 317b. The root portion 317 a extends from the second joint portion 312. Moreover, the fin part 317b is a substantially triangular plate-shaped part. The fin portion 314b protrudes from the tip of the root portion 317a.

なお、フィン部３１４ｂ，３１７ｂ、及び、第２，第３羽根部３１５，３１６は、第１実施形態の羽根部１１３と同様、撹拌部材３１０の短手方向に対し傾いている。
次に、撹拌部材３１０の配置状態について説明する。撹拌装置３００に含まれる２つの撹拌部材３１０は、第１実施形態と同様、第１排気管２０の撹拌装置配置位置２１に、排気管方向に直交する向きに並ぶ。２つの撹拌部材３１０は、撹拌装置配置位置２１の断面を中心として点対称に配置される。２つの撹拌部材３１０に形成された複数の羽根部やフィン部は、下流側から見ると、反時計回りの方向に傾いている。なお、複数の羽根部やフィン部は、時計回りの方向に傾いていても良い。Note that the fin portions 314b and 317b and the second and third blade portions 315 and 316 are inclined with respect to the short direction of the stirring member 310, like the blade portion 113 of the first embodiment.
Next, the arrangement state of the stirring member 310 will be described. The two stirring members 310 included in the stirring device 300 are arranged in the direction perpendicular to the exhaust pipe direction at the stirring device arrangement position 21 of the first exhaust pipe 20 as in the first embodiment. The two stirring members 310 are arranged point-symmetrically around the cross section of the stirring device arrangement position 21. When viewed from the downstream side, the plurality of blade portions and fin portions formed on the two stirring members 310 are inclined in the counterclockwise direction. Note that the plurality of blade portions and fin portions may be inclined in the clockwise direction.

また、第２排気管５０においても、同様にして撹拌装置３００が配置される。
［排気管の製造方法］
次に、第１排気管２０の製造方法について説明する。第３実施形態の製造方法は、第１実施形態と同様である。しかし、Ｓ１１５が第１実施形態と相違する。In the second exhaust pipe 50, the stirrer 300 is similarly arranged.
[Exhaust pipe manufacturing method]
Next, a method for manufacturing the first exhaust pipe 20 will be described. The manufacturing method of the third embodiment is the same as that of the first embodiment. However, S115 is different from the first embodiment.

Ｓ１１５では、第１実施形態と同様、第１，第２溝部材２２，２３に配置された撹拌部材３１０を固定する。具体的には、撹拌部材３１０を側方や上方から押さえることにより、撹拌部材３１０を固定しても良い。そして、第１実施形態と同様にして、溶接により、第１，第２接合部３１１，３１２と溝部材の内壁とを接合する。   In S115, as in the first embodiment, the stirring member 310 disposed in the first and second groove members 22 and 23 is fixed. Specifically, the stirring member 310 may be fixed by pressing the stirring member 310 from the side or from above. In the same manner as in the first embodiment, the first and second joint portions 311 and 312 and the inner wall of the groove member are joined by welding.

なお、例えば、撹拌部材３１０の接続部３１３における屈曲部分（第１部分３１３ａと第２部分３１３ｂとの接続部分）に形成された空洞に固定部材を嵌合させても良い。そして、固定部材を側方等から支持することで、撹拌部材３１０を固定しても良い。   In addition, for example, the fixing member may be fitted into a cavity formed in a bent portion (a connection portion between the first portion 313a and the second portion 313b) in the connection portion 313 of the stirring member 310. Then, the stirring member 310 may be fixed by supporting the fixing member from the side or the like.

なお、第２排気管５０も、同様の製造方法により製造される。
また、第１，第２排気管２０，５０に限らず、撹拌装置が配された様々な形状の排気管を、同様の製造方法により製造できる。The second exhaust pipe 50 is also manufactured by a similar manufacturing method.
In addition to the first and second exhaust pipes 20 and 50, various shapes of exhaust pipes provided with a stirring device can be manufactured by the same manufacturing method.

［効果］
第３実施形態によれば、第１実施形態と同様の効果を奏する。
［他の実施形態］
（１）第１〜第３実施形態の撹拌装置は、羽根部が下流側に位置する。しかし、羽根部が上流側に位置しても良い。[effect]
According to 3rd Embodiment, there exists an effect similar to 1st Embodiment.
[Other Embodiments]
(1) As for the stirring apparatus of 1st-3rd embodiment, a blade | wing part is located downstream. However, the blade portion may be located on the upstream side.

（２）第１〜第３実施形態では、排気管の内部では、複数の撹拌部材は、排気管方向に直交する方向に並んだ状態となる。しかし、複数の撹拌部材は、排気管方向に対し予め定められた角度で交差する方向に並んだ状態で、排気管の内部に配置されても良い。   (2) In the first to third embodiments, inside the exhaust pipe, the plurality of stirring members are arranged in a direction orthogonal to the exhaust pipe direction. However, the plurality of stirring members may be arranged inside the exhaust pipe in a state where they are aligned in a direction intersecting at a predetermined angle with respect to the exhaust pipe direction.

（３）第１〜第３実施形態の撹拌装置は、同一形状の２つ、又は、４つの撹拌部材を含んでいる。しかし、撹拌装置は、３つ、又は、５つ以上の撹拌部材を含んでいても良い。また、撹拌装置は、異なる形状の撹拌部材を含んでいても良い。   (3) The stirring devices of the first to third embodiments include two or four stirring members having the same shape. However, the stirring device may include three or five or more stirring members. Further, the stirring device may include stirring members having different shapes.

つまり、第１〜第３実施形態では、第１，第２溝部材２２，２３に、１つ又は２つの撹拌部材が配置される。しかし、各溝部材に３つ以上の撹拌部材が配置されても良い。さらに、撹拌装置に含まれる各撹拌部材の接合部や接続部や羽根部等の位置，形状，数等は、異なっていても良い。そして、各溝部材に配される撹拌部材の数は、異なっていても良い。具体的には、例えば、撹拌装置は、第１実施形態の１つの撹拌部材１１０と、第２実施形態の２つの撹拌部材２１０とを含んでいても良い。   That is, in the first to third embodiments, one or two stirring members are disposed in the first and second groove members 22 and 23. However, three or more stirring members may be disposed in each groove member. Furthermore, the positions, shapes, numbers, etc., of the joint portions, connection portions, blade portions, etc. of the respective stirring members included in the stirring device may be different. And the number of stirring members arranged in each groove member may differ. Specifically, for example, the stirring device may include one stirring member 110 according to the first embodiment and two stirring members 210 according to the second embodiment.

（４）第１〜第３実施形態では、第１排気管２０を構成する２つの溝部材に、撹拌部材が配置される。しかしながら、板状の細長い外殻部材を、３つ以上接合させて排気管を製作する場合が想定される。このような場合、各外殻部材における撹拌装置配置位置に撹拌部材を接合させても良い。そして、これらの外殻部材を接合させることで、撹拌装置を構成しても良い。この時、各外殻部材の撹拌装置配置位置には、１つ又は複数の撹拌部材を接合させても良い。   (4) In the first to third embodiments, the stirring member is disposed in the two groove members constituting the first exhaust pipe 20. However, it is assumed that the exhaust pipe is manufactured by joining three or more plate-like elongated outer shell members. In such a case, you may join a stirring member to the stirring apparatus arrangement position in each outer shell member. And you may comprise an agitator by joining these outer shell members. At this time, one or a plurality of stirring members may be joined to the stirring device arrangement position of each outer shell member.

［特許請求の範囲との対応］
上記実施形態の説明で用いた用語と、特許請求の範囲の記載に用いた用語との対応を示す。[Correspondence with Claims]
The correspondence between the terms used in the description of the above embodiment and the terms used in the description of the claims is shown.

第１〜第３実施形態における第１，第２溝部材２２，２３が、外殻部材の一例に相当する。
また、第１実施形態の撹拌部材１１０における接続部１１２，羽根部１１３，中央部１１４が変化部の一例に相当し、穴部１１４ａが固定部の一例に相当する。The first and second groove members 22 and 23 in the first to third embodiments correspond to an example of an outer shell member.
Moreover, the connection part 112, the blade | wing part 113, and the center part 114 in the stirring member 110 of 1st Embodiment correspond to an example of a change part, and the hole part 114a corresponds to an example of a fixing | fixed part.

また、第２実施形態の撹拌部材２１０における接続部２１２，羽根部２１３が変化部の一例に相当し、切欠き部２１２ｃが固定部の一例に相当する。
また、第３実施形態の撹拌部材３１０における接続部３１３，第１〜第４羽根部３１４〜３１７が変化部の一例に相当する。Moreover, the connection part 212 and the blade | wing part 213 in the stirring member 210 of 2nd Embodiment correspond to an example of a change part, and the notch part 212c corresponds to an example of a fixing | fixed part.
Moreover, the connection part 313 in the stirring member 310 of 3rd Embodiment, and the 1st-4th blade | wing parts 314-317 correspond to an example of a change part.

Claims (5)

排気の流下方向を変化させる撹拌装置が内部に設けられた排気管であって、予め定められた方向に延びる複数の外殻部材によりその外周面が形成される前記排気管の製造方法であって、
前記撹拌装置を構成する撹拌部材であって、前記流下方向を変化させるための板状の変化部と、前記排気管の内壁に接合するための板状の接合部とが設けられている前記撹拌部材を、板状部材をプレス成形することで製作し、
複数の前記外殻部材の各々における前記排気管の内壁を形成する内側面の予め定められた配置位置に、前記接合部が前記外殻部材の前記内側面に当接した状態で、１又は複数の前記撹拌部材を配置し、
前記配置位置に配置された前記撹拌部材の前記接合部を、溶接により前記外殻部材に接合し、
前記撹拌部材が接合された複数の前記外殻部材を、前記内側面が対面した状態で前記排気の流路を囲み、且つ、各々の前記外殻部材に接合された前記撹拌部材が前記撹拌装置を構成した状態で配置することで、前記撹拌装置が配された前記排気の流路を形成し、
前記排気の流路を形成した状態で配置された複数の前記外殻部材同士を、溶接により接合すること、
を特徴とする排気管の製造方法。 An exhaust pipe having an agitator for changing the flow direction of exhaust gas provided therein, the outer peripheral surface of which is formed by a plurality of outer shell members extending in a predetermined direction. ,
The stirring member constituting the stirring device, wherein the stirring member is provided with a plate-shaped changing portion for changing the flow-down direction and a plate-shaped joint portion for bonding to the inner wall of the exhaust pipe. The member is manufactured by press-molding a plate-like member,
A predetermined position of the inner surface forming an inner wall of the exhaust pipe at each of the outer shell member of the multiple, in a state where the joint portion is in contact with the inner surface of the outer shell member, one or Arranging a plurality of the stirring members,
The joining portion of the stirring member arranged at the arrangement position is joined to the outer shell member by welding,
The plurality of outer shell members to which the stirring members are joined surround the exhaust passage in a state where the inner surfaces face each other, and the stirring members joined to the outer shell members are the stirring devices. By forming the exhaust gas flow path in which the stirring device is disposed,
Joining the plurality of outer shell members arranged in a state in which the exhaust passage is formed, by welding;
An exhaust pipe manufacturing method characterized by the above. 請求項１に記載の排気管の製造方法において、
前記配置位置とは、前記排気管を流下する前記排気を浄化する浄化部の上流側に位置すること、
を特徴とする排気管の製造方法。 In the manufacturing method of the exhaust pipe according to claim 1,
The arrangement position is located upstream of a purification unit that purifies the exhaust gas flowing down the exhaust pipe,
An exhaust pipe manufacturing method characterized by the above. 請求項１又は請求項２に記載の排気管の製造方法において、
前記撹拌部材には、前記配置位置に配置された当該撹拌部材を固定するため、予め定められた形状に形成された固定部が設けられており、
前記配置位置に配置された前記撹拌部材を、前記固定部を介して該配置位置に固定した状態で、該撹拌部材の前記接合部を溶接により前記外殻部材に接合すること、
を特徴とする排気管の製造方法。 In the manufacturing method of the exhaust pipe according to claim 1 or 2,
In order to fix the stirring member arranged at the arrangement position, the stirring member is provided with a fixing portion formed in a predetermined shape,
Joining the joint portion of the stirring member to the outer shell member by welding in a state where the stirring member placed at the placement position is fixed to the placement position via the fixing portion;
An exhaust pipe manufacturing method characterized by the above. 請求項１から請求項３のうちのいずれか１項に記載の排気管の製造方法において、
それぞれの前記外殻部材に１つの前記撹拌部材を配置すること、
を特徴とする排気管の製造方法。 In the manufacturing method of the exhaust pipe according to any one of claims 1 to 3,
Disposing one stirring member on each outer shell member;
An exhaust pipe manufacturing method characterized by the above. 請求項１から請求項４のうちのいずれか１項に記載の排気管の製造方法において、In the manufacturing method of the exhaust pipe according to any one of claims 1 to 4,
前記撹拌部材は、Ｍ状又はＺ状の本体部を有し、The stirring member has an M-shaped or Z-shaped main body,
前記接合部は、前記本体部により形成され、The joint portion is formed by the main body portion,
前記変化部は、前記本体部から突出する部位であること、The change part is a part protruding from the main body part;
を特徴とする排気管の製造方法。An exhaust pipe manufacturing method characterized by the above.
JP2017542614A 2015-09-30 2015-09-30 Exhaust pipe manufacturing method Active JP6435055B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/077804 WO2017056256A1 (en) 2015-09-30 2015-09-30 Exhaust pipe manufacturing method and stirring member

Publications (2)

Publication Number Publication Date
JPWO2017056256A1 JPWO2017056256A1 (en) 2018-03-01
JP6435055B2 true JP6435055B2 (en) 2018-12-05

Family

ID=58423036

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017542614A Active JP6435055B2 (en) 2015-09-30 2015-09-30 Exhaust pipe manufacturing method

Country Status (2)

Country Link
JP (1) JP6435055B2 (en)
WO (1) WO2017056256A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101939813B1 (en) * 2017-08-18 2019-04-11 디젠스 주식회사 Gas mixer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5456279B2 (en) * 2008-07-08 2014-03-26 三菱ふそうトラック・バス株式会社 Exhaust gas purification system for internal combustion engine
DE102011077645A1 (en) * 2011-06-16 2012-12-20 Bosch Emission Systems Gmbh & Co. Kg Static mixer
CN107476859B (en) * 2012-08-10 2019-11-22 天纳克汽车经营有限公司 Method for mixing exhaust stream
DE102013208184A1 (en) * 2013-05-03 2014-11-06 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust system component

Also Published As

Publication number Publication date
JPWO2017056256A1 (en) 2018-03-01
WO2017056256A1 (en) 2017-04-06

Similar Documents

Publication Publication Date Title
KR101360161B1 (en) Reductant aqueous solution mixing device and exhaust aftertreatment device provided with the same
JP5985822B2 (en) Exhaust purification device
JP5977375B2 (en) Exhaust gas purification device
KR20140102122A (en) Reductant aqueous solution mixing device and exhaust aftertreatment device provided with the same
KR20140102123A (en) Reductant aqueous solution mixing device and exhaust aftertreatment device provided with the same
US10030560B2 (en) Exhaust purification device
CN112424455B (en) Exhaust mixer, emissions cleaning module, and method of manufacture
WO2010079847A1 (en) Exhaust gas purification device for an internal combustion engine
JP2018044528A (en) Engine exhaust emission control device
JP2016188579A (en) Exhaust emission control unit
JP6166468B2 (en) Exhaust stirrer
JP6435055B2 (en) Exhaust pipe manufacturing method
US8484948B2 (en) Fixed auger assembly
KR101669657B1 (en) Mixing apparatus for SCR on diesel particular filter
US20160032810A1 (en) Mixer for exhaust gas aftertreatment system
JP6120333B2 (en) Exhaust gas purification device
JP6756629B2 (en) Exhaust gas purification device
JP2016205188A (en) Exhaust emission control unit
JP6894385B2 (en) Mixer
CN111183275B (en) Exhaust gas purification device for internal combustion engine
JP2021156226A (en) Exhaust emission control device
JP7438084B2 (en) Exhaust purification device
WO2020189577A1 (en) Mixer member
JPWO2018051503A1 (en) Reductant mixing device
JP2022079115A (en) Exhaust emission control device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20171101

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180626

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180809

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20181016

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20181109

R150 Certificate of patent or registration of utility model

Ref document number: 6435055

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250