JPS62189330A - Crank shaft longitudinally mounting type four-cycle internal combustion engine - Google Patents
Crank shaft longitudinally mounting type four-cycle internal combustion engineInfo
- Publication number
- JPS62189330A JPS62189330A JP2109587A JP2109587A JPS62189330A JP S62189330 A JPS62189330 A JP S62189330A JP 2109587 A JP2109587 A JP 2109587A JP 2109587 A JP2109587 A JP 2109587A JP S62189330 A JPS62189330 A JP S62189330A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder head
- internal combustion
- combustion engine
- valve
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 239000012212 insulator Substances 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/20—Multi-cylinder engines with cylinders all in one line
-
- 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
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B2075/1804—Number of cylinders
- F02B2075/1816—Number of cylinders four
-
- 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
- F02B2275/20—SOHC [Single overhead camshaft]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、クランク軸を上下方向に沿って縦置きに配置
した４サイクル内燃機関に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a four-stroke internal combustion engine in which a crankshaft is arranged vertically along the vertical direction.
例えば船外機の動力源として用いられるクランク軸縦置
き型の４サイクルエンジンは、上下方向に延びるケーシ
ングの上端部に取付けられることから、船外機の安定性
を＾めるためには、内燃機関の高さを極力低く抑えるこ
とが望ましい。For example, a four-stroke engine with a vertical crankshaft that is used as a power source for an outboard motor is attached to the upper end of a casing that extends in the vertical direction. It is desirable to keep the height of the engine as low as possible.
ところで、この種の内燃機関において、吸気弁および排
気弁の配置をオーバヘッドバルブ式とするとともに、シ
リンダヘッドに吸気弁および排気弁を開閉駆動する動弁
機構を設けた場合には、シリンダヘッドに動弁機構を覆
うヘッドカバーや点火プラグが設けられることになる。By the way, in this type of internal combustion engine, when the intake valve and exhaust valve are arranged in an overhead valve type, and the cylinder head is provided with a valve mechanism that opens and closes the intake valve and exhaust valve, A head cover and spark plug will be provided to cover the valve mechanism.
この点火プラグは、内燃ｌ１ｒＩＡの付属部品の中でも
保守点検の頻度が高いために、脱着を容易に行なえる位
置に配置することが望まれる。Since this spark plug is frequently maintained and inspected among the accessory parts of the internal combustion l1rIA, it is desirable to arrange it in a position where it can be easily attached and detached.
ところが、点火プラグの脱着性の虜のみを考慮すると、
この点火プラグがシリンダヘッドの上方に向って突出し
たり、あるいはシリンダヘッドの上下部位に点火プラグ
脱着用の空間を確保しなくてはならないことがあり、内
燃機関の高さを抑える上での妨げとなる等の不具合があ
る。However, if we only consider the removability of spark plugs,
This spark plug may protrude upwards from the cylinder head, or space may need to be secured above and below the cylinder head to install and remove the spark plug, which can be an impediment to reducing the height of the internal combustion engine. There are some problems such as
本発明はこのような事情にもとづいてなされたもので、
機関の高さを大きくすることなく、点火プラグの保守点
検を容易に行なえるクランク軸縦置き型４サイクル内燃
機関の提供を目的とする。The present invention was made based on these circumstances, and
The purpose of the present invention is to provide a vertical crankshaft type four-stroke internal combustion engine in which maintenance and inspection of spark plugs can be easily performed without increasing the height of the engine.
そこで、本発明においては、シリンダを横置きにして、
クランク軸を上下方向に沿って縦置きに配置するととも
に、シリンダヘッドには吸気弁と排気弁とをシリンダの
ボア中心に対して上下に並べて配置し、これら吸気弁お
よび排気弁の動弁機構を覆うヘッドカバーを、上記シリ
ンダヘッドに被嵌してなる４サイクル内燃機関を前提と
し、上記吸気弁および排気弁によって開閉される通路を
、横方向に沿って互いに逆向きに導出させるとともに、
上記吸気弁および排気弁のうち、いずれか下方に位置す
る弁にて開閉される通路の上方に、上記ヘッドカバーを
避けてシリンダｌベッドの横方向に露出される点火プラ
グを設けたことを特徴とする。Therefore, in the present invention, the cylinder is placed horizontally,
The crankshaft is arranged vertically along the vertical direction, and the intake valve and exhaust valve are arranged vertically in the cylinder head with respect to the bore center of the cylinder. Assuming a four-stroke internal combustion engine in which a head cover is fitted over the cylinder head, passages opened and closed by the intake valve and the exhaust valve are led out in opposite directions to each other along the lateral direction,
A spark plug is provided above the passage that is opened and closed by a valve located below the intake valve or the exhaust valve, and is exposed in the lateral direction of the cylinder bed, avoiding the head cover. do.
この構成によれば、点火プラグはシリンダヘッドの側方
に向って横向きに導出されるので、機関の上下部位に点
火プラグが突出せずに済むとともに、この上下部位に点
火プラグ脱着用のスペースを確保する必要もなく、機関
の高さを低く抑えることができる。According to this configuration, since the spark plug is led out laterally toward the side of the cylinder head, the spark plug does not need to protrude into the upper and lower parts of the engine, and a space for removing and removing the spark plug is created in this upper and lower part. There is no need to secure it, and the height of the engine can be kept low.
しかも、点火プラグはヘッドカバーを避けて導出されて
いるので、点火プラグの脱着に際してヘッドカバー等の
周囲部品が邪魔となったり取外したりする必要もなく、
この点火プラグの脱毛を容易に行なうことができる。Moreover, since the spark plug is guided out avoiding the head cover, surrounding parts such as the head cover do not get in the way when installing or removing the spark plug, and there is no need to remove it.
This spark plug can be easily removed.
以下本発明の一実施例を、船外機に適用した図面にもと
づいて説明する。An embodiment of the present invention will be described below based on drawings in which the present invention is applied to an outboard motor.
図中符号１で示す船外機のケーシング（よ、アッパケー
シング２とロアケーシング３とで構成され、このアッパ
ケーシング２の上端開口部を閉塞するエキゾーストガイ
ド４上には、４サイクル内燃機関５が取付けられている
。そして、ケーシング１内には内燃１１１Ｅ５によって
回転駆動される駆動軸６が挿通されており、この駆動軸
６はロアケーシング３の下端部のプロペラ軸７を介して
プロペラ８を回転駆動している。The casing of the outboard motor, indicated by reference numeral 1 in the figure, is composed of an upper casing 2 and a lower casing 3, and a 4-cycle internal combustion engine 5 is mounted on an exhaust guide 4 that closes the upper end opening of the upper casing 2. A drive shaft 6 that is rotationally driven by the internal combustion 111E5 is inserted into the casing 1, and this drive shaft 6 rotates a propeller 8 via a propeller shaft 7 at the lower end of the lower casing 3. It's driving.
なお、図中符号９は内燃機関５の周囲を覆うカウリング
である。In addition, the reference numeral 9 in the figure is a cowling that covers the periphery of the internal combustion engine 5.
ところで、上記内燃１１関５は第３図に示すように、シ
リンダブロック１０内に一対のシリンダ１１゜１１を上
下に並置してなり、これらシリンダ１１．１１はそのシ
リンダ軸が前後方向に沿うように横置きされている。ま
た、シリンダブロック１０の前端面に取付けたクランク
ケース１２内には、ピストン１３によって回転駆動され
るクランク軸１４が上下方向に治って縦置きに軸支され
ており、このクランク軸１４の下端部に上記駆動軸６が
連結されている。By the way, as shown in FIG. 3, the internal combustion engine 11 5 is made up of a pair of cylinders 11, 11 arranged vertically in a cylinder block 10, and these cylinders 11, 11 are arranged so that their cylinder axes are along the front-rear direction. It is placed horizontally. A crankshaft 14, which is rotatably driven by a piston 13, is vertically supported in a crankcase 12 attached to the front end surface of the cylinder block 10, and the lower end of the crankshaft 14 The drive shaft 6 is connected to the drive shaft 6.
シリンダブロック１０の後端面には、シリンダヘット１
５が連結されており、このシリンダヘッド１５には各シ
リンダ１１の燃焼室１６に連なる吸気口１７と排気口１
８が開口されている。これら吸気口１７と排気口１８は
、第１図および第２図に示すように、シリンダ１１のボ
ア中心を通る中心線Ｘｌに対して上下方向に並べて配置
されており、本実施例の場合は大径な吸気口１７が上方
に位置されている。シリンダヘッド１５内には吸気口１
７に連なる吸気通路１９と排気口１８に連なる排気通路
２０が形成されており、これら両通路１９．２０は横方
向に沿って互いに逆向きに導出されている。そして、吸
気通路１９はシリンダヘッド１５の一側面に開口されて
、図示しない気化器等の吸気装置に接続されているとと
もに、この吸気通路１９よりも小径に形成された排気通
路２０は、第１図に示すようにシリンダブロック１０側
に向って屈曲されて、このシリンダブロック１０内に設
けた排気導出路２１に接続されている。A cylinder head 1 is provided on the rear end surface of the cylinder block 10.
5 are connected to each other, and this cylinder head 15 has an intake port 17 and an exhaust port 1 connected to the combustion chamber 16 of each cylinder 11.
8 is open. As shown in FIGS. 1 and 2, these intake ports 17 and exhaust ports 18 are arranged vertically side by side with respect to the center line Xl passing through the center of the bore of the cylinder 11. A large diameter intake port 17 is located above. There is an intake port 1 inside the cylinder head 15.
An intake passage 19 connected to the exhaust port 18 and an exhaust passage 20 connected to the exhaust port 18 are formed, and these passages 19 and 20 are led out in opposite directions to each other along the lateral direction. The intake passage 19 is opened on one side of the cylinder head 15 and connected to an intake device such as a carburetor (not shown), and the exhaust passage 20 is formed to have a smaller diameter than the intake passage 19. As shown in the figure, it is bent toward the cylinder block 10 and connected to an exhaust outlet passage 21 provided within the cylinder block 10.
なお、この排気導出路２１は上記エキゾーストガイド４
から下方に延びる排気管２２に通じて、ケーシング１内
の排気膨張室２３に開口されている。Note that this exhaust outlet path 21 is connected to the exhaust guide 4.
The exhaust pipe 22 extends downward from the exhaust pipe 22 and opens into an exhaust expansion chamber 23 inside the casing 1 .
また、シリンダヘッド１５には、吸気口１７ヲ開閉する
吸気弁２５と排気口１８を開閉する排気弁２６が設けら
れており、弁配置がオーバヘッドバルブ式となっている
とともに、このシリンダヘッド１５の後端面上には、吸
気弁２５および排気弁２６を開閉駆動する動弁機構２９
が設けられている。本実施例の動弁機構２９は上下方向
に縦置きされた一本のカム軸３０と、ロッカ軸３１上に
揺動可能に支持されたロッカアーム３２とからなり、カ
ム軸３０の上端部はベルト機構３３を介してクランク軸
１４に連動されている。The cylinder head 15 is also provided with an intake valve 25 that opens and closes the intake port 17 and an exhaust valve 26 that opens and closes the exhaust port 18, and the valve arrangement is an overhead valve type. On the rear end surface, a valve mechanism 29 that opens and closes the intake valve 25 and the exhaust valve 26 is provided.
is provided. The valve mechanism 29 of this embodiment consists of a single camshaft 30 placed vertically in the vertical direction, and a rocker arm 32 swingably supported on a rocker shaft 31. It is linked to the crankshaft 14 via a mechanism 33.
そして、シリンダヘッド１５の後端面には、その外周囲
を縁取る周壁部１５ａが後方に向って立設されており、
この周壁部１５ａの後端面には、周壁部１５ａとの間で
上記動弁機構２９を覆うヘッドカバー２７がボルト締め
されている。On the rear end surface of the cylinder head 15, a peripheral wall portion 15a that frames the outer periphery of the cylinder head 15 is erected rearward.
A head cover 27 that covers the valve mechanism 29 is bolted to the rear end surface of the peripheral wall 15a.
一方、シリンダヘッド１５の後端面には、点火プラグ３
５がねじ込まれるプラグ孔３４が開口されている。この
プラグ孔３４は排気口１８および排気通路２０の上方に
おいて、燃焼室１６に開口されており、その軸線Ｏｓが
シリンダヘッド１５の周壁部１５ａを避けて側方に向く
ように、上記ボア中心線×１に対し一定角度傾斜して設
けられている。したがって、点火プラグ３５にあっては
、その碍子部分３５ａがシリンダヘッド１５の周壁部１
５ａｅｌけてシリンダヘッド１５の横方向に導出されて
いる。On the other hand, a spark plug 3 is provided on the rear end surface of the cylinder head 15.
A plug hole 34 into which the plug 5 is screwed is opened. The plug hole 34 opens into the combustion chamber 16 above the exhaust port 18 and the exhaust passage 20, and is arranged along the bore center line so that its axis Os faces to the side, avoiding the peripheral wall 15a of the cylinder head 15. It is inclined at a constant angle with respect to x1. Therefore, in the spark plug 35, the insulator portion 35a is connected to the peripheral wall portion 1 of the cylinder head 15.
5ael is led out in the lateral direction of the cylinder head 15.
このような構成によれば、点火プラグ３５はシリンダヘ
ッド１５の側方に向って横向きに導出されるので、シリ
ンダヘッド１５の上下方向に点火プラグ３５が突出せず
に済むとともに、このシリンダヘッド３５の上下部位に
点火プラグ３５の脱着用スペースを確保する必要もなく
、その分、機関の高さを低く抑えることができる。According to such a configuration, since the spark plug 35 is led out laterally toward the side of the cylinder head 15, the spark plug 35 does not need to protrude in the vertical direction of the cylinder head 15, and the cylinder head 35 There is no need to secure space for removing and removing the spark plug 35 in the upper and lower parts of the engine, and the height of the engine can be kept low accordingly.
それとともに、点火プラグ３５は動弁機構２９を覆うシ
リンダヘット１５の周壁部１５ａやヘッドカバー２７を
避けた位置に導出されているから、点火プラグ３５の脱
着に際して、上記周壁部１５ａやｌ＼ラッドバー２７が
邪魔となったり、これらを取外したりする必要もなく、
点火プラグ３５の保守点検作業を容易に行なうことがで
きる。At the same time, since the spark plug 35 is led out to a position that avoids the peripheral wall 15a of the cylinder head 15 that covers the valve mechanism 29 and the head cover 27, when the spark plug 35 is attached or removed, There is no need to get in the way or remove them.
Maintenance and inspection work for the spark plug 35 can be easily performed.
また、本実施例のように排気通路２０の上方に点火プラ
グ３５を装着すれば、この排気通路２０は吸気通路１９
に比べて小径であるので、その上方に充分なスペースを
確保することができ、点火プラグ３５の脱着作業を良好
に行なう上でより好都合となる利点がある。Furthermore, if the spark plug 35 is installed above the exhaust passage 20 as in this embodiment, this exhaust passage 20 is connected to the intake passage 19.
Since the diameter is smaller than that of the spark plug 35, a sufficient space can be secured above the spark plug 35, which is advantageous in that it is more convenient to attach and detach the spark plug 35.
なお、本発明に係る内燃機関は、船外機用に特定される
ものではなく、例えば草刈り機等のその他の汎用機械の
動力源としても同様に実施可能である。Note that the internal combustion engine according to the present invention is not limited to being used as an outboard motor, and can similarly be implemented as a power source for other general-purpose machines such as a lawn mower.
以上詳述した本発明によれば、内燃機関の高さを大きく
することなく、点火プラグの脱着を容易に行なうことが
でき、保守点検時の作業性が良好となる。According to the present invention described in detail above, the spark plug can be easily attached and detached without increasing the height of the internal combustion engine, and workability during maintenance and inspection is improved.
図面は本発明の一実施例を示し、第１図は第３図中Ｉ−
Ｉ線に沿う断面図、第２図はシリンダヘッドの正面図、
第３図は内燃１関全体の断面図、第４図は船外灘の側面
図である。
１１・・・シリンダ、１４・・・クランク軸、１５・・
・シリンダヘッド、１９．２０・・・通路（吸気通路、
排気通路）、２５・・・吸気弁、２６・・・排気弁、２
７・・・ヘッドカバー、２９・・・勤弁閤構、３５・・
・点火プラグ、ＸＩ・・・ボア中心線。The drawings show one embodiment of the present invention, and FIG.
A sectional view taken along line I, Figure 2 is a front view of the cylinder head,
FIG. 3 is a sectional view of the entire internal combustion engine, and FIG. 4 is a side view of the outboard bund. 11...Cylinder, 14...Crankshaft, 15...
・Cylinder head, 19.20... passage (intake passage,
exhaust passage), 25...intake valve, 26...exhaust valve, 2
7...Head cover, 29...Kinbenkyoukai, 35...
・Spark plug, XI...Bore center line.
Claims (1)
て縦置きに配置するとともに、シリンダヘッドには吸気
弁と排気弁とをシリンダのボア中心を通る中心線に対し
て上下に並べて配置し、これら吸気弁および排気弁駆動
用の動弁機構を覆うヘッドカバーを、上記シリンダヘッ
ドに被嵌してなる４サイクル内燃機関において、 上記吸気弁および排気弁によって開閉される通路を、横
方向に沿って互いに逆向きに導出させるとともに、上記
吸気弁および排気弁のうち、いずれか下方に位置する弁
にて開閉される通路の上方に、上記ヘッドカバーを避け
てシリンダヘッドの横方向に露出される点火プラグを設
けたことを特徴とするクランク軸縦置き型４サイクル内
燃機関。[Claims] The cylinder is placed horizontally, the crankshaft is placed vertically along the vertical direction, and the cylinder head is provided with an intake valve and an exhaust valve with respect to the center line passing through the center of the bore of the cylinder. In a four-stroke internal combustion engine, a head cover is arranged vertically and covers a valve mechanism for driving the intake valves and exhaust valves, and is fitted onto the cylinder head. , are led out in opposite directions to each other along the lateral direction, and are directed in the lateral direction of the cylinder head, avoiding the head cover, above the passage that is opened and closed by the valve located below the intake valve or the exhaust valve. A four-stroke internal combustion engine with a vertical crankshaft, characterized in that it is provided with a spark plug that is exposed to the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2109587A JPS62189330A (en) | 1987-01-31 | 1987-01-31 | Crank shaft longitudinally mounting type four-cycle internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2109587A JPS62189330A (en) | 1987-01-31 | 1987-01-31 | Crank shaft longitudinally mounting type four-cycle internal combustion engine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14266381A Division JPS5844206A (en) | 1981-09-10 | 1981-09-10 | 4-cycle internal-combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62189330A true JPS62189330A (en) | 1987-08-19 |
| JPH0368215B2 JPH0368215B2 (en) | 1991-10-25 |
Family
ID=12045313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2109587A Granted JPS62189330A (en) | 1987-01-31 | 1987-01-31 | Crank shaft longitudinally mounting type four-cycle internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62189330A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02277926A (en) * | 1989-04-19 | 1990-11-14 | Honda Motor Co Ltd | Vertical crank shaft engine |
| JPH02283808A (en) * | 1989-04-21 | 1990-11-21 | Honda Motor Co Ltd | Valve system of engine |
| JPH0332998A (en) * | 1989-06-30 | 1991-02-13 | Honda Motor Co Ltd | Outboard motor |
| JPH0849557A (en) * | 1995-04-20 | 1996-02-20 | Honda Motor Co Ltd | Outboard engine |
| US6547023B2 (en) | 2000-06-28 | 2003-04-15 | Avl List Gmbh | Single-track motor vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS426081Y1 (en) * | 1966-05-18 | 1967-03-24 | ||
| JPS5317805A (en) * | 1976-07-31 | 1978-02-18 | Nippon Soken Inc | Internal combustion engine |
| JPS5317808A (en) * | 1977-05-02 | 1978-02-18 | Fuji Heavy Ind Ltd | Combustion chamber of internal combustion engine |
| JPS55161919A (en) * | 1979-06-02 | 1980-12-16 | Bayerische Motoren Werke Ag | Single train multiicylinder internal combustion engine |
| JPS5677519A (en) * | 1979-11-30 | 1981-06-25 | Suzuki Motor Co Ltd | Cylinder head for overhead camshaft type four-cycle engine |
-
1987
- 1987-01-31 JP JP2109587A patent/JPS62189330A/en active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS426081Y1 (en) * | 1966-05-18 | 1967-03-24 | ||
| JPS5317805A (en) * | 1976-07-31 | 1978-02-18 | Nippon Soken Inc | Internal combustion engine |
| JPS5317808A (en) * | 1977-05-02 | 1978-02-18 | Fuji Heavy Ind Ltd | Combustion chamber of internal combustion engine |
| JPS55161919A (en) * | 1979-06-02 | 1980-12-16 | Bayerische Motoren Werke Ag | Single train multiicylinder internal combustion engine |
| JPS5677519A (en) * | 1979-11-30 | 1981-06-25 | Suzuki Motor Co Ltd | Cylinder head for overhead camshaft type four-cycle engine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02277926A (en) * | 1989-04-19 | 1990-11-14 | Honda Motor Co Ltd | Vertical crank shaft engine |
| JP2750149B2 (en) * | 1989-04-19 | 1998-05-13 | 本田技研工業株式会社 | Vertical crankshaft engine |
| JPH02283808A (en) * | 1989-04-21 | 1990-11-21 | Honda Motor Co Ltd | Valve system of engine |
| JPH0332998A (en) * | 1989-06-30 | 1991-02-13 | Honda Motor Co Ltd | Outboard motor |
| JPH0849557A (en) * | 1995-04-20 | 1996-02-20 | Honda Motor Co Ltd | Outboard engine |
| US6547023B2 (en) | 2000-06-28 | 2003-04-15 | Avl List Gmbh | Single-track motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0368215B2 (en) | 1991-10-25 |
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