JPS5896160A - Exhaust recirculation apparatus for engine in motorcycle - Google Patents

Exhaust recirculation apparatus for engine in motorcycle

Info

Publication number
JPS5896160A
JPS5896160A JP56191842A JP19184281A JPS5896160A JP S5896160 A JPS5896160 A JP S5896160A JP 56191842 A JP56191842 A JP 56191842A JP 19184281 A JP19184281 A JP 19184281A JP S5896160 A JPS5896160 A JP S5896160A
Authority
JP
Japan
Prior art keywords
engine
passage
exhaust
exhaust gas
gas recirculation
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
Application number
JP56191842A
Other languages
Japanese (ja)
Inventor
Yasuo Ikenotani
池ノ谷　保男
Akira Okubo
章 大久保
Masabumi Araki
荒木　正文
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP56191842A priority Critical patent/JPS5896160A/en
Publication of JPS5896160A publication Critical patent/JPS5896160A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/20—Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/39—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/41—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories characterised by the arrangement of the recirculation passage in relation to the engine, e.g. to cylinder heads, liners, spark plugs or manifolds; characterised by the arrangement of the recirculation passage in relation to specially adapted combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/18—DOHC [Double overhead camshaft]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE:To provide a compact engine with simple construction by forming at least a portion of an exhaust reflux path of a guide hole in the wall thickness portion of an engine. CONSTITUTION:At least a portion of an exhaust reflux path 7 is formed of a guide hole 7a preformed in the wall thickness portion 3a of an engine 3. That is, the front portion of the outermost cylinder 13 and the rear portions of the respective cylinders 13 are preformed in the respective wall thickness portions 3a provided with respective vertical guide holes 7a which are made a portion of the exhaust recirculation path 7.

Description

【発明の詳細な説明】 本発明は自動！軸車におけるエンジンの排気還流装置に
関す為。[Detailed Description of the Invention] The present invention is automatic! Regarding the engine exhaust recirculation device in the axle.

本願出願人は先にこの種装置として、前後の車輪を有す
る車体の中間部にエンジンとその上側の燃料タンクとを
設けると共に、該エンジンに排気通路内の排気の一部ｔ
ｇ＆気通路に導く排気還流通路を備える式のものを提案
したが、この場合、諌排気還流通路は該エンジンの外部
の別個の配管で構成すみ式を一般とするもので、かかる
ものではその構成が複雑且大型とな艶勝ちであり、これ
は時に自動２輪車の場合好ましくない。The applicant of this application has previously proposed a device of this type in which an engine and a fuel tank above the engine are provided in the middle of a vehicle body having front and rear wheels, and a part of the exhaust gas in the exhaust passage is provided in the engine.
We have proposed a type with an exhaust gas recirculation passage leading to the exhaust gas passage, but in this case, the exhaust recirculation passage is generally constructed of a separate pipe outside the engine, and in such a type, the configuration is However, they tend to be complex and large, which is sometimes undesirable for motorcycles.

本発明はか−る不都合のない装置を得ることをその目的
としたもので、前後の車輪を有する車体の中間部にエン
ジン ＃４ｒを設けると共に骸エンジンに排気通路内の排気の
一部を吸気通路内に導く排気還流通路を備える式のもの
において、該排気還流通路管少くともその一部において
皺エンジンに予め形成される肉厚部内の導孔で形成させ
ることを特徴とする。The purpose of the present invention is to obtain a device that does not have such inconveniences.An engine #4r is provided in the middle of a vehicle body having front and rear wheels, and a part of the exhaust gas in the exhaust passage is supplied to the main engine for intake. In the exhaust gas recirculation passage having an exhaust gas recirculation passage leading into the passage, at least a part of the exhaust recirculation passage pipe is formed by a conduit hole in a thick part previously formed in the wrinkled engine.

本発明の実施例を別紙図面に付説明する。Embodiments of the present invention will be described with reference to the attached drawings.

図面で（１）は車体を示し、皺車体（１）は前後の車輪
（２）　（２）と、その中間部のエンジン（３）と、そ
の上側の燃料タンク（４）とを備えて全体として自動２
輪車に構ｌ！されるようにし、更に骸エンジン（３）に
は排気通路（５）内の排気の−ａｔ吸気通路（６）側に
導く排気還流通路（７）が備えられるようにした。In the drawing, (1) shows the car body, and the wrinkled car body (1) consists of the front and rear wheels (2), the engine (3) in the middle, and the fuel tank (4) above it. as automatic 2
Make it into a wheelbarrow! Furthermore, the skeleton engine (3) is provided with an exhaust gas recirculation passage (7) that leads the exhaust gas in the exhaust passage (5) to the -at intake passage (6) side.

該排気還流通路（７）には上流側の排気還流制御弁（８
）と下流側の逆止弁（９）とが介入されると共に、更に
該制御弁（８）に作動電圧を導く負圧通路（ｌＱには負
圧制御弁αυと負圧増幅用逆止弁（２）とが備えられる
よう圧した。The exhaust gas recirculation passage (7) is provided with an upstream exhaust gas recirculation control valve (8).
) and a check valve (9) on the downstream side are interposed, and a negative pressure passage (lQ has a negative pressure control valve αυ and a check valve for negative pressure amplification) that leads the operating voltage to the control valve (8). (2).

本発明によれば前記した排気還流通路（７）を少くとも
その一部において該エンジン（３）に予め形成される肉
厚部（３ａ）内の導孔（７＆）で形成するようにした。According to the present invention, at least a portion of the above-mentioned exhaust gas recirculation passage (7) is formed by a guide hole (7&) in a thick wall portion (3a) formed in advance in the engine (3).

図示のものにつき詳述するに、第１図乃至第３図示の実
施例では該エンジン（３）は特に第６図に明示するよう
にシリンダａｓヲー側の２個と他側の２個とに有する４
気筒に構成させ、その最外側の１個のシリンダａｓの前
部と、各シリンダ員の後部とを予め各肉厚部（３ａ）に
形成してこれに上下方向の各導孔（７Ｋ）ｔ−設け、こ
れを前記した通路（７）の一部に構成するようにした。To explain in detail what is shown in the drawings, in the embodiment shown in Figs. 1 to 3, the engine (3) has two cylinders on the one side and two on the other side, as shown in Fig. 6. have 4
The front part of the outermost cylinder as and the rear part of each cylinder member are formed in advance in each thick part (3a), and each vertical guide hole (7K) t is formed in the thick part (3a). - provided and constituted as a part of the above-mentioned passageway (7).

更に説明すれば、核最外側の１個のシリンダα謙の前部
の肉厚部（３＆）内の導孔（７ａ）は第２図に明示する
ように前記した排気通路（５）の上流側の排気ボート（
５＆）から下方にのびる前記した還流通路（７）の上流
側を作ると共に、各シリンダα罎の後部の各肉厚部（Ｓ
ｌ）内の各導孔（７１）は同じく第２図に明示するよう
に前記した吸気通路（６）の下流側の吸気ボー）（６ａ
）から下方にのびる前記した還流通路（７）の各下流側
を作るもので、該通路（７）の中間部は該エンジン（３
）の外部に配管されるパイプ部材（７ｂ）で作られるよ
うにした。To explain further, the guide hole (7a) in the front thick part (3&) of the outermost cylinder α is located upstream of the exhaust passage (5) as shown in FIG. side exhaust boat (
In addition to creating the upstream side of the above-mentioned reflux passage (7) extending downward from the cylinder α, each thick part (S
Each of the guide holes (71) in l) is connected to the intake bow (6a) on the downstream side of the intake passage (6) as shown in FIG.
) is used to form each of the downstream sides of the above-mentioned reflux passage (7) extending downward from the engine (3).
) is made of a pipe member (7b) that is piped to the outside of the pipe.

該パイプ部材（７ｂ）は第３図に明示するように該エン
ジン（３）の前方からその側方を介してその後方にのび
るが、これは更にその長さを減少させ得るもので、例え
ば第４図示の通りであり、この場合該パイプ部材（７ｂ
）の上ｖＬ岡は該エンジン（３）の肉厚部（３＆）内の
導孔（７瓢）で置換される・このように本発明によると
きは排気還流通路を少くともその一部においてエンジン
の肉厚部内の導孔で作るもので、別個に配管する式のも
のに比し構成を簡単且つ小屋化することが出来る効果を
有する。The pipe member (7b) extends from the front of the engine (3) through its sides to the rear thereof, as clearly shown in FIG. 3, but this may further reduce its length, e.g. 4. In this case, the pipe member (7b
) is replaced by a guide hole (7) in the thick wall part (3&) of the engine (3).In this way, according to the present invention, the exhaust gas recirculation passage is connected to the engine at least in part. It is made with a conduit hole in the thick part of the pipe, and has the advantage of being simpler and more compact than a separate piping type.

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

第１図は本発明装置を備えた自動２輪車の１例の側面図
、第２図はその要部の拡大した裁断１Ｉｌ１面図、第５
図はその裁断平面図、第４図はその変形例の裁断平面図
である。 （１）・・・・・・車　　体　　　（２）（２）・−車
　　輪（３）・・・・・・エンジン　　　（４）・・・
燃料タンク（５）・・・・・・排気通路　　　（６）・
・・・・・吸気通路（力・・・排気還流通路　　　（３
＆）・・・肉厚部（５ｂ）・・・導　　孔 特許出願人　　４ｍ″１ＩＩｉｌ＆＊＆、、。 代　　理　　人　　　北　　村　　　欣　　　−−６≦
、２゜外２名 第４図FIG. 1 is a side view of an example of a motorcycle equipped with the device of the present invention, FIG.
The figure is a cut plan view of the same, and FIG. 4 is a cut plan view of a modified example thereof. (1)・・・Car body (2)(2)・-Wheels (3)・・・Engine (4)・・・
Fuel tank (5)... Exhaust passage (6)
...Intake passage (power...Exhaust recirculation passage (3)
&)...Thick part (5b)...Guiding hole Patent applicant 4m''1IIil&*&... Agent Kin Kitamura --6≦
, 2 people outside 2° Figure 4

Claims (1)

【特許請求の範囲】 前後の車輪を有する車体の中間部にエンジンを設けると
共に＃ エンジンに排気通路内の排気〇一部を吸気通路内に導く
排気還流通路を備ｉ為式のものにおいて、該排気還流通
路を少くともその−１１１において該エンジンに予め廖
虞され為肉厚部内の導孔で形成させることｔ特徴とす為
自動２輪車におけるエンジンの排気還流装置。[Scope of Claims] An engine is provided in the middle of a vehicle body having front and rear wheels, and the engine is provided with an exhaust gas recirculation passage for guiding part of the exhaust gas in the exhaust passage into the intake passage, An exhaust gas recirculation device for an engine in a two-wheeled motor vehicle, characterized in that the exhaust gas recirculation passage is formed by a guide hole in a thick walled portion of the engine at least in its -111 portion, which is pre-opened to the engine.
JP56191842A 1981-12-01 1981-12-01 Exhaust recirculation apparatus for engine in motorcycle Pending JPS5896160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56191842A JPS5896160A (en) 1981-12-01 1981-12-01 Exhaust recirculation apparatus for engine in motorcycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56191842A JPS5896160A (en) 1981-12-01 1981-12-01 Exhaust recirculation apparatus for engine in motorcycle

Publications (1)

Publication Number Publication Date
JPS5896160A true JPS5896160A (en) 1983-06-08

Family

ID=16281418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56191842A Pending JPS5896160A (en) 1981-12-01 1981-12-01 Exhaust recirculation apparatus for engine in motorcycle

Country Status (1)

Country Link
JP (1) JPS5896160A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04171259A (en) * 1990-11-05 1992-06-18 Hitachi Ltd Exhaust gas reflux quantity controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04171259A (en) * 1990-11-05 1992-06-18 Hitachi Ltd Exhaust gas reflux quantity controller

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