JPH11201879A - Adapter for collecting exhaust gas of motorcycle - Google Patents
Adapter for collecting exhaust gas of motorcycleInfo
- Publication number
- JPH11201879A JPH11201879A JP237098A JP237098A JPH11201879A JP H11201879 A JPH11201879 A JP H11201879A JP 237098 A JP237098 A JP 237098A JP 237098 A JP237098 A JP 237098A JP H11201879 A JPH11201879 A JP H11201879A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- adapter
- main body
- collecting
- muffler
- 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.)
- Pending
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、二輪自動車や原
動機付き自転車（以下、二輪自動車等或いは単に二輪自
動車とする）の排ガスを稀釈することなく採取すること
のできる排ガス採取用アダプタ、特にエンジンの燃焼特
性を変えることなく且つ稀釈されているか否かを確認し
ながらマフラ−から排出される排ガスを採取することの
できる二輪自動車等の排ガス採取用アダプタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust gas collecting adapter which can collect exhaust gas of a two-wheeled vehicle or a motor-driven bicycle (hereinafter referred to as a two-wheeled vehicle or simply a two-wheeled vehicle) without diluting the exhaust gas, particularly an engine. The present invention relates to an exhaust gas collecting adapter for a motorcycle or the like, which can collect exhaust gas discharged from a muffler without changing combustion characteristics and while checking whether or not the exhaust gas is diluted.
【０００２】[0002]
【従来の技術】自動車から排出される排ガス中に含まれ
る有害なガス成分は環境保護の見地から厳しく規制され
るようになっている。更に、近年は二輪自動車等もその
排出する排ガス中の有害成分を規制しようとする動きが
強まっている。従来、自動車から排出される排ガスの成
分測定に際しては、マフラ−の出口から内部奥へ排ガス
採取用のプロ−ブ先端を４０ｃｍ以上挿入し、エンジン
特性に影響を与えないようにして分析用の排ガスを採取
するようになっている。分析に際しては所定の走行モ−
ドでエンジンを駆動して排ガスを採取し、排ガス中に含
まれる一酸化炭素（ＣＯ）や窒素酸化物（ＮＯx ）や炭
化水素類（Ｃm Ｈn ）等が測定される。2. Description of the Related Art Harmful gas components contained in exhaust gas emitted from automobiles are strictly regulated from the viewpoint of environmental protection. Furthermore, in recent years, there has been an increasing movement to control harmful components in exhaust gas emitted from motorcycles and the like. Conventionally, when measuring the components of the exhaust gas emitted from an automobile, the tip of a probe for exhaust gas extraction is inserted at least 40 cm from the exit of the muffler to the inside of the exhaust gas, and the exhaust gas for analysis is not affected by the engine characteristics. Is to be collected. In the analysis, the specified driving mode
The exhaust gas is collected by driving the engine with the engine, and carbon monoxide (CO), nitrogen oxides (NO x ), hydrocarbons (C m H n ) and the like contained in the exhaust gas are measured.
【０００３】[0003]
【発明が解決しようとする課題】二輪自動車等の排ガス
用のマフラ−の排出口の形状は、エンジンの排気量や車
種により或いはメ−カ−により種々のものがあり、現在
採用されている自動車の排ガス採取方法をそのまま採用
することが出来ない。即ち、図５（Ａ）或いは図５
（Ｂ）に示すように、マフラ−４の排出口４ａから排ガ
ス採取用のプロ−ブ３を挿入しても４〜５ｃｍ程度しか
奥に入れることができないものもある。また、図５
（Ｃ）に示すように、排気口径が１１（ｍｍ）φ程度の
ものがあり、このような排気口にプロ−プ３を挿入する
と、排気抵抗が増大し、排ガスの逃げ部が狭くなり、エ
ンジンの燃焼特性が変化して所定の走行モ−ドでの排ガ
ス成分を正しく計測できない、という問題があった。こ
のような場合、排ガス採取用のアダプタを用いる方法が
考えられるが、排ガス採取時にアダプタを用いるにして
も自動車と同様稀釈されない状態で排ガスを採取する方
法はなかった。The shape of the exhaust port of a muffler for exhaust gas of a motorcycle or the like has various shapes depending on the engine displacement, the type of vehicle, or the manufacturer. The exhaust gas sampling method cannot be adopted as it is. That is, FIG.
As shown in (B), even if the exhaust gas sampling probe 3 is inserted from the discharge port 4a of the muffler 4, there is a case where the probe 3 can be inserted only into the depth of about 4 to 5 cm. FIG.
As shown in (C), there is an exhaust port having a diameter of about 11 (mm) φ. When the probe 3 is inserted into such an exhaust port, the exhaust resistance increases, the exhaust gas escape portion becomes narrow, There has been a problem that the combustion characteristics of the engine change and the exhaust gas component in a predetermined running mode cannot be measured correctly. In such a case, a method using an exhaust gas collecting adapter is conceivable. However, even if an adapter is used at the time of collecting the exhaust gas, there has been no method of collecting the exhaust gas in a state where the exhaust gas is not diluted as in an automobile.
【０００４】この発明は、上記する課題に対処するため
になされたものであり、通常の自動車の排ガス採取方法
と何らかわることなく各走行モ−ドでの排ガス採取が可
能であり、また、採取される排ガスが稀釈されない状態
で排ガスを採取することのできる二輪自動車の排ガス採
取用アダプタを提供することを目的としている。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to collect exhaust gas in each traveling mode without any difference from a normal method of collecting exhaust gas from an automobile. It is an object of the present invention to provide an exhaust gas collecting adapter for a two-wheeled motor vehicle capable of collecting exhaust gas in a state where the exhaust gas to be discharged is not diluted.
【０００５】[0005]
【課題を解決するための手段】即ち、この発明は、上記
する課題を解決するために、二輪自動車等の排ガス採
取用アダプタ（１）が、マフラ−（４）の排気口（４
ａ）の外側端部表面（４ｂ）の周囲に周縁部を接触させ
る開口部（１ｂ）を筒状本体（１ａ）の先端部に形成す
ると共に後端部には、該筒状本体部（１ａ）と相対的に
移動可能に排ガス採取用のプロ−ブ（３）を嵌め入れる
緩い穴（１ｃ）を形成して成ることを特徴とする。That is, according to the present invention, in order to solve the above-mentioned problems, an exhaust gas collecting adapter (1) for a motorcycle or the like is provided with an exhaust port (4) of a muffler (4).
An opening (1b) for bringing the peripheral edge into contact with the outer end surface (4b) of (a) is formed at the front end of the tubular main body (1a), and the tubular main body (1a) is formed at the rear end. ), A loose hole (1c) into which a probe (3) for collecting exhaust gas is fitted so as to be relatively movable.
【０００６】また、前記筒状本体部（１ａ）の先端部
の開口部（１ｂ）周囲に耐熱性シ−ル部材（２）を設け
ることを特徴としている。Further, a heat-resistant seal member (2) is provided around the opening (1b) at the tip of the cylindrical main body (1a).
【０００７】或いは、前記筒状本体部（１ａ）の後部
側面に排ガスの排出口（１ｄ）を設けて成ることを特徴
としている。Alternatively, an exhaust gas outlet (1d) is provided on the rear side surface of the cylindrical main body (1a).
【０００８】[0008]
【発明の実施の形態】以下、この発明の具体的実施の形
態について図面を参照しながら説明する。図１（Ａ）
は、この発明の二輪自動車等の排ガス採取用アダプタの
縦断面図である。このアダプタ１は、排気口４ａを設け
た二輪自動車用マフラ−４の外側端部表面４ｂの周囲
に、周縁部を接触させるよう筒状本体１ａの先端部に開
口部１ｂを形成すると共に後端部に排ガス採取用のプロ
−ブ３の先端部３ａや該プロ−ブ３の管路の一部を嵌め
入れる緩い穴１ｃが設けてある。該アダプタ１の筒状本
体１ａの開口部１ｂの端部周縁部には、石綿やシリコン
ゴム等の耐熱性シ−ル部材２が取り付けてある。また、
該アダプタ１の筒状本体１ａの後部側面には排ガス排出
用の排出口１ｄが設けてある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1 (A)
1 is a longitudinal sectional view of an exhaust gas sampling adapter for a motorcycle or the like of the present invention. The adapter 1 has an opening 1b at the front end of a cylindrical main body 1a around an outer end surface 4b of a muffler-4 for a two-wheeled vehicle provided with an exhaust port 4a so as to contact a peripheral edge thereof, and a rear end. The portion is provided with a tip portion 3a of a probe 3 for collecting exhaust gas and a loose hole 1c into which a part of a conduit of the probe 3 is fitted. A heat-resistant seal member 2 such as asbestos or silicone rubber is attached to the peripheral edge of the opening 1b of the tubular main body 1a of the adapter 1. Also,
An outlet 1d for discharging exhaust gas is provided on a rear side surface of the tubular main body 1a of the adapter 1.
【０００９】このアダプタ１の筒状本体１ａの内部に
は、排ガス採取用のプロ−ブ３の一部が嵌め入れてある
が、該アダプタ１の筒状本体１ａとプロ−ブ３とは、排
ガス採取時相対的に移動できるように嵌め入れてある。
即ち、図２に示すように、排ガス採取時には、筒状本体
１ａの開口部１ｂの端部の耐熱性シ−ル部材２をマフラ
−４の排気口４ａの外側面４ｂの周囲に接触させ、プロ
−ブ３の排ガスの取り入れ口３ａの先端部からアダプタ
１の筒状本体１ａの後端部までの距離が４０ｃｍ以上と
なるようにして排ガスを採取する。このようにアダプタ
１の筒状本体１ａをマフラ−４の外側面４ｂに接触させ
れば自動車のマフラ−から排ガスを採取するのと何ら変
わらず且つ空気で稀釈されない自動車等と同等の条件で
排ガスを採取することができる。尚、図１（Ｂ）に示す
ように、プロ−ブは、塵埃除去用のフィルタ部３ｂを設
けたプロ−ブ３’としてもよい。A part of a probe 3 for collecting exhaust gas is fitted into the tubular main body 1a of the adapter 1. The tubular main body 1a and the probe 3 of the adapter 1 are It is fitted so that it can move relatively when collecting exhaust gas.
That is, as shown in FIG. 2, when exhaust gas is collected, the heat-resistant seal member 2 at the end of the opening 1b of the cylindrical main body 1a is brought into contact with the periphery of the outer surface 4b of the exhaust port 4a of the muffler-4, Exhaust gas is collected so that the distance from the tip of the exhaust gas inlet 3a of the probe 3 to the rear end of the tubular main body 1a of the adapter 1 is 40 cm or more. When the tubular main body 1a of the adapter 1 is brought into contact with the outer side surface 4b of the muffler-4 in this manner, the exhaust gas is collected under the same conditions as those for collecting the exhaust gas from the muffler of the vehicle and under the same conditions as those of a vehicle not diluted with air. Can be collected. Incidentally, as shown in FIG. 1B, the probe may be a probe 3 'provided with a filter part 3b for removing dust.
【００１０】次に、マフラ−４の排気口４ａがプロ−ブ
３の先端の取り入れ口３ａの外径より充分大きい時でア
ダプタ１の筒状本体１ａをあまり長くしない場合には、
図３に示すように、マフラ−４の排気口４ａから排出さ
れる排ガスを採取するように、プロ−ブ３の排ガスの取
り入れ口３ａをマフラ−４の排気口４ａの中に嵌め入れ
るようにしてもよい。この場合も自動車のマフラ−から
排ガスを採取するのと変わらない状態で排ガスを採取す
ることができる。Next, when the exhaust port 4a of the muffler-4 is sufficiently larger than the outer diameter of the intake port 3a at the tip of the probe 3, if the tubular main body 1a of the adapter 1 is not made too long,
As shown in FIG. 3, the exhaust gas intake port 3a of the probe 3 is fitted into the exhaust port 4a of the muffler-4 so as to collect the exhaust gas discharged from the exhaust port 4a of the muffler-4. You may. Also in this case, the exhaust gas can be collected in the same state as when collecting the exhaust gas from the muffler of the automobile.
【００１１】図１乃至図３に示す実施例ではアダプタ１
の筒状本体１ａの後部側面に、排ガスを排出するように
排出口１ｄが設けてあるが、この排出口１ｄにより排ガ
ス採取時のマフラ−４内での背圧を大きくすることな
く、即ち、エンジンの燃焼特性を変えることなく所定の
走行モ−ドでの排ガスを採取することができる。勿論、
アダプタ１の本体部１ａの後部に設けた穴１ｃとプロ−
ブ３との隙間からも排ガスは排出される。また、アダプ
タ１の筒状本体１ａに設けた排出口１ｄには風船や流量
計等を設ければ大気側から空気が流入して排ガスを稀釈
するおそれがあるか否かを検出することができるが、空
気の流入状態の確認だけなら細く軽い耐熱性の繊維を該
排出口１ｄに付け外側にたなびいているかどうかを確認
するだけでもよい。更に、逆止弁を設けて大気側から空
気が入らないようにすることもできる。In the embodiment shown in FIGS.
An exhaust port 1d is provided on the rear side surface of the cylindrical main body 1a so as to exhaust the exhaust gas. The exhaust port 1d does not increase the back pressure in the muffler-4 at the time of exhaust gas collection, that is, Exhaust gas in a predetermined running mode can be collected without changing the combustion characteristics of the engine. Of course,
The hole 1c provided at the rear of the main body 1a of the adapter 1 is
Exhaust gas is also discharged from the gap with the valve 3. If a balloon, a flow meter, or the like is provided at the outlet 1d provided in the cylindrical main body 1a of the adapter 1, it is possible to detect whether or not air may flow in from the atmosphere side and dilute the exhaust gas. However, if it is only necessary to check the inflow state of air, it is only necessary to attach a thin and light heat-resistant fiber to the outlet 1d and check whether the fiber is splaying outward. Further, a check valve may be provided to prevent air from entering from the atmosphere side.
【００１２】図４は、この発明の二輪自動車等の排ガス
採取用アダプタの変形例の実施の形態である。この発明
の実施の形態では、アダプタ１’の筒状本体１ａ’の端
部の開口部１ｂ’の端部に耐熱性のシ−ル部材２’を取
り付けて、該筒状本体１ａを長くしてプロ−ブ３の排ガ
スの取り入れ口３ａの先端部からアダプタ１’の筒状本
体１ａ’の後端部までの距離が４０ｃｍ以上となるよう
にして排ガスを採取するものである。このようにマフラ
−４の排気口４ａの外側面４ｂに耐熱性シ−ル部材２’
を接触させ、マフラ−４の排気口４ａより排出される排
ガスを採取すれば、該筒状本体１ａ’の内部の圧力が大
気側より高い限り通常の自動車の排ガス採取方法と何ら
変わることなく、且つ大気で稀釈することなく排ガスを
採取することができる。また、図５（Ｂ）に示すよう
に、排出口４ａが下側斜方向を向いているマフラ−４で
あっても、筒状本体１ａ’の端部の径を大きくすること
によってこの発明の排ガス採取用アダプタを用いて排ガ
スを採取することができる。FIG. 4 shows an embodiment of a modification of the adapter for collecting exhaust gas of a motorcycle or the like according to the present invention. In the embodiment of the present invention, a heat-resistant seal member 2 'is attached to the end of the opening 1b' at the end of the tubular main body 1a 'of the adapter 1' to make the tubular main body 1a longer. The exhaust gas is collected so that the distance from the tip of the exhaust gas inlet 3a of the probe 3 to the rear end of the tubular main body 1a 'of the adapter 1' is 40 cm or more. Thus, the heat-resistant seal member 2 'is provided on the outer surface 4b of the exhaust port 4a of the muffler-4.
And exhaust gas discharged from the exhaust port 4a of the muffler-4 is collected, as long as the pressure inside the cylindrical main body 1a 'is higher than the atmosphere side, without any difference from a normal automobile exhaust gas collecting method. Moreover, the exhaust gas can be collected without dilution in the atmosphere. Further, as shown in FIG. 5B, even if the discharge port 4a is a muffler-4 whose oblique direction is directed downward, the diameter of the end of the cylindrical main body 1a 'is increased to increase the diameter of the end of the cylindrical body 1a'. Exhaust gas can be sampled using the exhaust gas sampling adapter.
【００１３】[0013]
【発明の効果】以上詳述したように、この発明の二輪自
動車等の排ガス採取用アダプタによれば、二輪自動車等
のマフラ−（排気管）から稀釈することなく分析用の排
ガスを採取することができる。また、排ガス採取時にア
ダプタの内圧を高くしないで排ガスの採取が可能とな
る。従って、エンジンの燃焼状態に影響を及ぼすことな
く試験時の各走行モ−ドでの排ガスを採取することが可
能となる。As described above in detail, according to the adapter for collecting exhaust gas of a motorcycle or the like of the present invention, exhaust gas for analysis can be collected from a muffler (exhaust pipe) of a motorcycle or the like without dilution. Can be. Further, exhaust gas can be collected without increasing the internal pressure of the adapter when collecting the exhaust gas. Therefore, it is possible to collect the exhaust gas in each running mode during the test without affecting the combustion state of the engine.
【図１】図１（Ａ）は、この発明の二輪自動車等の排ガ
ス採取用アダプタの断面図であり、図１（Ｂ）は、排ガ
ス採取用のプロ−ブに塵埃除去用のフィルタ部を設けた
例の図である。FIG. 1 (A) is a cross-sectional view of an exhaust gas collecting adapter of a motorcycle and the like according to the present invention, and FIG. 1 (B) is a drawing of a filter for removing dust on a probe for collecting exhaust gas. It is a figure of the example provided.
【図２】この発明の二輪自動車等の排ガス採取用アダプ
タの断面図であって、プロ−ブで二輪自動車のマフラ−
から排ガスを採取している状態を示す図である。FIG. 2 is a sectional view of an exhaust gas collecting adapter for a two-wheeled vehicle or the like according to the present invention;
FIG. 4 is a diagram showing a state in which exhaust gas is being collected from a marine vessel.
【図３】この発明の二輪自動車等の排ガス採取用アダプ
タの断面図であって、マフラ−の排気口内にプロ−ブの
排ガス採取口を入れた状態を示す図である。FIG. 3 is a sectional view of an exhaust gas sampling adapter for a motorcycle or the like according to the present invention, showing a state in which an exhaust gas sampling port of a probe is inserted into an exhaust port of a muffler.
【図４】図４は、この発明の二輪自動車等の排ガス採取
用アダプタの第２の実施の形態を示す断面図であり、ア
ダプタの筒状本体を長くして自動車の排ガス採取方法と
同様の採取方法を示す図である。FIG. 4 is a cross-sectional view showing a second embodiment of an exhaust gas collecting adapter for a two-wheeled vehicle or the like according to the present invention. It is a figure showing a sampling method.
【図５】図５は従来の二輪自動車等のマフラ−の一部断
面図を示し、図５（Ａ）は、排気口が少し狭い状態のも
のに排ガス採取用プロ−ブを挿入した状態を示し、図５
（Ｂ）は、排気口が下方向を向いている状態を示し、図
５（Ｃ）は従来のマフラ−を後方から見た状態を示す図
である。FIG. 5 is a partial sectional view of a conventional muffler of a two-wheeled vehicle or the like, and FIG. 5 (A) shows a state in which an exhaust gas sampling probe is inserted into a state where an exhaust port is slightly narrow. FIG. 5
5B shows a state in which the exhaust port faces downward, and FIG. 5C shows a state in which the conventional muffler is viewed from behind.
１ アダプタ １ａ 筒状本体 １ｂ 開口部 １ｃ 筒状本体後部の穴 １ｄ 筒状本体後部側面の排気ガス排出口 ２ 耐熱性シ−ル部材 ３ プロ−ブ ３ａ プロ−ブの先端部 ４ マフラ− ４ａ マフラ−の排気口 ４ｂ マフラ−の外側端部表面 DESCRIPTION OF SYMBOLS 1 Adapter 1a Cylindrical main body 1b Opening 1c Hole at rear part of cylindrical main body 1d Exhaust gas outlet at rear side of cylindrical main body 2 Heat resistant seal member 3 Probe 3a Tip of probe 4 Muffler 4a Muffler -Exhaust port 4b Outer end surface of muffler
Claims (3)
に周縁部を接触させる開口部を筒状本体の先端部に形成
すると共に後端部には、該筒状本体部と相対的に移動可
能に排ガス採取用のプロ−ブを嵌め入れる緩い穴を形成
して成ることを特徴とする二輪自動車の排ガス採取用ア
ダプタ。An opening is formed at the front end of the cylindrical main body so as to make a peripheral edge contact with the outer end surface of the exhaust port of the muffler, and at the rear end, the opening is formed relative to the cylindrical main body. An exhaust gas sampling adapter for a two-wheeled vehicle, wherein a loose hole is formed so as to movably fit an exhaust gas sampling probe.
性シ−ル部材を設けることを特徴とする請求項１に記載
の二輪自動車の排ガス採取用アダプタ。2. The exhaust gas collecting adapter for a motorcycle according to claim 1, wherein a heat-resistant seal member is provided around an opening at a distal end of the cylindrical main body.
を設けて成ることを特徴とする請求項１又は請求項２に
記載の二輪自動車の排ガス採取用アダプタ。3. The exhaust gas collecting adapter according to claim 1, wherein an exhaust gas outlet is provided on a rear side surface of the tubular main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP237098A JPH11201879A (en) | 1998-01-08 | 1998-01-08 | Adapter for collecting exhaust gas of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP237098A JPH11201879A (en) | 1998-01-08 | 1998-01-08 | Adapter for collecting exhaust gas of motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11201879A true JPH11201879A (en) | 1999-07-30 |
Family
ID=11527373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP237098A Pending JPH11201879A (en) | 1998-01-08 | 1998-01-08 | Adapter for collecting exhaust gas of motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11201879A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010515016A (en) * | 2006-12-21 | 2010-05-06 | 株式会社堀場製作所 | Flow splitter used in solid particle counting system |
| JP2012083205A (en) * | 2010-10-12 | 2012-04-26 | Honda Motor Co Ltd | Attachment for collecting exhaust gas and detachment method for the same |
| KR101173292B1 (en) * | 2010-06-07 | 2012-08-10 | 대한민국(환경부장관) | Apparatus for examining 2-wheeled vehicle emission |
| WO2017154688A1 (en) * | 2016-03-09 | 2017-09-14 | 本田技研工業株式会社 | Open emission analysis method and device |
-
1998
- 1998-01-08 JP JP237098A patent/JPH11201879A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010515016A (en) * | 2006-12-21 | 2010-05-06 | 株式会社堀場製作所 | Flow splitter used in solid particle counting system |
| KR101173292B1 (en) * | 2010-06-07 | 2012-08-10 | 대한민국(환경부장관) | Apparatus for examining 2-wheeled vehicle emission |
| JP2012083205A (en) * | 2010-10-12 | 2012-04-26 | Honda Motor Co Ltd | Attachment for collecting exhaust gas and detachment method for the same |
| WO2017154688A1 (en) * | 2016-03-09 | 2017-09-14 | 本田技研工業株式会社 | Open emission analysis method and device |
| JP2017161373A (en) * | 2016-03-09 | 2017-09-14 | 本田技研工業株式会社 | Open emission analysis method and device |
| US10794799B2 (en) | 2016-03-09 | 2020-10-06 | Honda Motor Co., Ltd. | Open emission analysis method and device |
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