JPH01273834A - Multicylinder engine equipped with transmission for motorcycle - Google Patents
Multicylinder engine equipped with transmission for motorcycleInfo
- Publication number
- JPH01273834A JPH01273834A JP10015788A JP10015788A JPH01273834A JP H01273834 A JPH01273834 A JP H01273834A JP 10015788 A JP10015788 A JP 10015788A JP 10015788 A JP10015788 A JP 10015788A JP H01273834 A JPH01273834 A JP H01273834A
- Authority
- JP
- Japan
- Prior art keywords
- countershaft
- drive shaft
- crankshafts
- crankshaft
- cylinder
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 230000000694 effects Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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
- 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
- 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
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
- F02B75/225—Multi-cylinder engines with cylinders in V, fan, or star arrangement having two or more crankshafts
-
- 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
- F02B2075/1808—Number of cylinders two
-
- 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
- F02B73/00—Combinations of two or more engines, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的)
(産業上の利用分野)
この発明は、スクエア4など前後2本のクランク軸によ
って組立てられた自動2輪車などのミッション付多気筒
エンジンに関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) This invention relates to a multi-cylinder engine with a mission, such as a two-wheeled motor vehicle, which is assembled with two front and rear crankshafts, such as a square 4 engine.
(従来の技術)
自動2輪車あるいは鞍乗型3./1輪車に搭載されるエ
ンジンは、エンジンユニツl〜内にミッション室が組み
込まれ、ミッション付エンジンとして構成されるのが一
般的である。(Prior art) Two-wheeled motor vehicle or saddle type 3. The engine mounted on a unicycle is generally configured as an engine with a mission, with a mission chamber built into the engine unit l~.
この基本的なレイアウトとしては、第3図に示されるよ
うに、クランク軸1、カウンタ@2、ドライブ軸3が並
設され、クランク軸寄のプライマリドライブギア4とカ
ウンタit 2Ilのプライマリドリブンギア5が噛合
い、カウンタ軸2とドライブ軸3間にはミッションギア
機構のドライブギア列6とドリブンギア列7が介装され
クランク軸1の回転をシフトされた所要の速度段階でド
ライブ軸3に伝えるようになっている。In this basic layout, as shown in Fig. 3, the crankshaft 1, counter@2, and drive shaft 3 are arranged side by side, with the primary drive gear 4 near the crankshaft and the primary driven gear 5 of the counter it 2Il. A drive gear train 6 and a driven gear train 7 of a mission gear mechanism are interposed between the counter shaft 2 and the drive shaft 3, and the rotation of the crankshaft 1 is transmitted to the drive shaft 3 at the required shifted speed stage. It looks like this.
この場合、メカロスを最小限にし、伝導効率を高くする
ためには、クランク軸1、カウンタ@2、ドライブ軸3
の軸心が極力同−平面A上に並ぶことが望ましい。In this case, in order to minimize mechanical loss and increase conduction efficiency, the crankshaft 1, counter @ 2, drive shaft 3
It is desirable that the axes of the two be aligned on the same plane A as much as possible.
一方、多気筒エンジンには、4つのシリンダを方形に配
したスクエア4エンジンのように、前シリンダ列のクラ
ンク軸と後シリンダ列のクランク軸が並設されるものが
ある。この場合は、第4図に示すように、前シリンダ列
8aのクランク軸1ζ】および後シリンダ列8bのクラ
ンク軸1bにそれぞれ、プライマリドライブギア4a、
4bが固定されてプライマリドリブンギア5に噴合さ゛
れるので、伝導効率上、カウンタ軸2とドライブ軸3軸
心を結ぶ平面Bが、両クランク軸1a、Ib軸心を結ぶ
平面Cの中心線りを通るようにレイアラ1〜されるのが
理論的には理想的である。On the other hand, some multi-cylinder engines have a front cylinder row crankshaft and a rear cylinder row crankshaft arranged side by side, such as a square four engine in which four cylinders are arranged in a rectangular arrangement. In this case, as shown in FIG. 4, a primary drive gear 4a,
4b is fixed and injected into the primary driven gear 5, so in terms of conduction efficiency, the plane B connecting the counter shaft 2 and drive shaft 3 centers is the center line of the plane C connecting both crankshafts 1a and Ib axes. Theoretically, it would be ideal for the rails to pass through the rails.
ところがこのようなレイアウトでは、ドライブ軸3が低
く位置してミッションドリブンギア列7がオイルを掻き
、メカ(コスや潤滑系統を不安定にする実際面での不都
合がある。これを避けるためエンジン全体を前傾させて
ドライブ軸を高くした形にすると、前後長が長くなり過
ぎて、搭載のバランスや外観を損われるという問題が生
じる。However, in such a layout, the drive shaft 3 is located low and the mission driven gear train 7 collects oil, which is a practical problem and makes the mechanical system and lubrication system unstable.To avoid this, the entire engine If the drive shaft is tilted forward and the drive shaft is raised, the front-rear length will become too long, which will impair the balance and appearance of the vehicle.
(発明が解決しようとする課題)
以上のように、自動2輪車などに搭載きれるミッション
付エンジンで、2木のクランク軸が配備された多気ねエ
ンジンにおいては、伝導効率がよく搭載上のバランス、
外観もよい伝導系レイアラ1−がとりにくいという問題
があるのに鑑み、この発明は、伝導効率に勝れ、かつバ
ランスおJ:び外観のよい搭載姿勢がとれる自動2輪車
などのミッション付多気筒エンジンを提供することを目
的とする。(Problems to be Solved by the Invention) As described above, multi-turbine engines with transmissions that can be installed in motorcycles, etc., and equipped with two crankshafts have good conduction efficiency and a well-balanced installation. ,
In view of the problem that it is difficult to create a conduction system that has a good appearance, this invention aims to provide a transmission system for motorcycles and other vehicles that has excellent conduction efficiency and can be mounted in a balanced and good-looking mounting position. The purpose is to provide a multi-cylinder engine.
(課題を解決するための手段)
上記の目的を達成するため、この発明の自動2輪車など
のミッション付多気筒エンジンは、萌シリンダ列のクラ
ンク軸と後シリンダ列のクランク軸が前後に!112段
され、両クランク軸に固定されたプライマリドライブギ
アがカウンタ軸上のプライマリドリブンギアに噛合い、
カウンタ軸とドライブ軸との間にミッションギア機構が
介装された自vJ2輪車などのミッション付多気筒エン
ジンにおいて、カウンタ軸とドライブ軸の軸心を結ぶ平
面が前後クランク軸間の前クランク軸寄りを通るように
設定されると共に、上記シリンダ列が前傾して搭載され
た構成になるものである。(Means for Solving the Problems) In order to achieve the above object, in the multi-cylinder engine with a transmission for motorcycles and the like according to the present invention, the crankshaft of the moe cylinder row and the crankshaft of the rear cylinder row are arranged in front and behind each other! The primary drive gear, which has 112 stages and is fixed to both crankshafts, meshes with the primary driven gear on the countershaft.
In a multi-cylinder engine with a mission such as a VJ two-wheel vehicle in which a mission gear mechanism is interposed between the counter shaft and the drive shaft, the plane connecting the axes of the counter shaft and the drive shaft is the front crankshaft between the front and rear crankshafts. The arrangement is such that the cylinder row is mounted so as to be tilted forward.
(作用)
このように構成したので、シリンダ部分の前傾をそれ程
大きくしなくてもドライブ軸の位置が高くなり、ミッシ
ョンドリブンギア列がミッション室のA−イル面より浮
−にし、オイルを掻き上げることがなく、メカロスが軽
減し、潤滑系が安定する。(Function) With this configuration, the position of the drive shaft is raised without making the cylinder part tilt forward that much, and the mission driven gear train is raised above the A-ile surface of the mission chamber, allowing oil to be scraped. This reduces mechanical loss and stabilizes the lubrication system.
そしてドライブ軸のJ−冒した分ミッション室の上下巾
が短縮され、エンジン重心を下げろことかできる。同時
にシリンダ部分の前傾が小さくて洛むので、エンジン前
後長が良くなることなく、上記上下巾の縮小と相俟って
バランスよく搭載でき、また自動2輪車のようにエンジ
ン部分が露出しているものでは、搭載姿勢の外観をよく
することができる。Additionally, the vertical width of the transmission chamber is shortened by the length of the drive shaft, allowing the center of gravity of the engine to be lowered. At the same time, the forward inclination of the cylinder part is small and it can be easily moved, so the engine can be mounted in a well-balanced manner without increasing the front-to-back length of the engine, and in combination with the above-mentioned reduction in vertical width, the engine part is not exposed like in a motorcycle. The appearance of the mounting position can be improved if the
また、カウンタ軸とドライブ軸の軸心な結ぶ平面が両ク
ランク軸の間を通るように設定されているので、プライ
マリドリブンギアには、その平面の両側で両プライマリ
ドライブギアが噛合い、伝導効率の損失がほとんどない
。In addition, since the plane connecting the axes of the countershaft and drive shaft is set to pass between both crankshafts, both primary drive gears mesh with the primary driven gear on both sides of that plane, which improves conduction efficiency. There is almost no loss.
(実施例) 以下この発明の実施例を承り図に就いて説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
第1図はスクエア4エンジンの要部の縦断側面図、第2
図は第1図のエンジンを搭載した自動2輪rliの側面
図である。Figure 1 is a longitudinal cross-sectional side view of the main parts of the square 4 engine, Figure 2
The figure is a side view of a two-wheeled automatic rli equipped with the engine of FIG. 1.
第2図において、エンジンユニット11は前輪12と後
輪13の中間部に配置され、これ自体がフレームとして
機能する。エンジンユニット11には、シリンダブロッ
ク14の下にクランクケース15が連設され、さらにそ
の−側寄りに後方へミッションケース16が連設される
。In FIG. 2, an engine unit 11 is arranged at an intermediate portion between a front wheel 12 and a rear wheel 13, and itself functions as a frame. A crank case 15 is connected to the engine unit 11 under the cylinder block 14, and a transmission case 16 is connected to the rear near the negative side of the crank case 15.
エンジンの伝導系は、第1図に示すように、前シリンダ
列17aのクランク軸18aと後シリンダ列17bのク
ランク@18bが@後に平行して配性され、それぞれに
固定されたプライマリドライブギア19a、19bがカ
ウンタ軸上0上のプライマリドリブンギア21に噛合う
。カウンタ軸20にはミッションギア機構のドライブギ
ア舛22が軸装置れ、隣接するドライブ−噛23土のド
リブンギア列24ど噛合う。As shown in FIG. 1, the transmission system of the engine includes a crankshaft 18a of the front cylinder row 17a and a crank 18b of the rear cylinder row 17b arranged in parallel at the rear, and a primary drive gear 19a fixed to each. , 19b mesh with the primary driven gear 21 on the counter shaft 0. A drive gear shaft 22 of a mission gear mechanism is mounted on the counter shaft 20, and an adjacent drive gear 23 meshes with the driven gear row 24 of the transmission gear mechanism.
こうして両クランク軸18a、18bが連動して、カウ
ンタ(III 20に回転を伝え、さらにドライブ軸2
3にミッションギア機構により変速した回転を伝え、チ
ェーンを介して後輪13を駆fhりる。In this way, both crankshafts 18a and 18b are interlocked to transmit rotation to the counter (III 20), and further to the drive shaft 2.
The transmission gear mechanism transmits the speed-changed rotation to the transmission gear mechanism 3, and drives the rear wheel 13 via the chain.
前記1)a、後シリンダ列17a、17bづなわらシリ
ンダブロック14は45°稈度前傾して備えられろ。づ
゛なわも両クランク軸18a、18bの軸心を結ぶ平面
Cは/15°稈麿後上方へ傾斜する。1) A, the rear cylinder rows 17a and 17b and the cylinder block 14 are provided tilted forward by 45 degrees. A plane C connecting the axes of both crankshafts 18a and 18b is inclined rearward and upward by /15°.
ぞしてカウンタ軸20とドライブ軸23の軸心を結ぶ平
面3aは、前、侵クランク軸188.18b軸心の間で
、その中心線りより前クランク軸18aWりに平面Cと
交るように設定されている。The plane 3a connecting the axes of the countershaft 20 and the drive shaft 23 intersects with the plane C from the center line of the front crankshaft 18aW between the axes of the front crankshaft 188 and 18b. is set to .
すなわち平面3aは両シリンダ列17a、17b軸心よ
りさらにα角110傾して与えられる。That is, the plane 3a is tilted further by an α angle of 110 from the axes of both cylinder rows 17a, 17b.
このように設定されたので、プライマリドリブンギア2
1には、平面13aの両側で両プライマリドライブギア
19a、19bが噛合っているので、伝導効率がよい、
111時にドライブ軸23は高位11′9に置かれるの
で、ドリブンギア列24μミッションケース16内の油
面25上にあり、オイルを掻くことによるメカロスにな
らないし、不必要に月数J゛るオイルがなく、潤滑系の
作用を安定的にり゛る。With this setting, primary driven gear 2
1, since both primary drive gears 19a and 19b are meshed on both sides of the plane 13a, conduction efficiency is good.
Since the drive shaft 23 is placed at a high position 11'9 at 111, it is above the oil level 25 in the driven gear train 24μ mission case 16, so there is no mechanical loss due to oil scratching, and there is no unnecessary oil loss. The lubricating system functions stably.
一方これにより前、後シリンダ列17a、17bのl′
IO傾角を小さく抑えることができ、エンジンユニット
11の前後1にや上下中を1(人化しないので、搭載姿
勢のバランスがJ:りまた外観もよい。On the other hand, as a result, l' of the front and rear cylinder rows 17a, 17b
The IO inclination angle can be kept small, and the front and rear of the engine unit 11 and the upper and lower middle are not humanized, so the mounting posture is balanced and the appearance is good.
第2図に示すように、45°前後の前傾にJ、す、シリ
ンダブロック14上方に連設したフレーム兼用のエアク
リーナケース26に前輪12のステアリングヘッド27
を固定して、フレームレス自動2輪車のコンパクトなレ
イアウト確保に質重ることができる。As shown in FIG. 2, the steering head 27 of the front wheel 12 is mounted on an air cleaner case 26 which also serves as a frame and which is connected above the cylinder block 14 and is tilted forward at an angle of about 45 degrees.
can be fixed to ensure a compact layout for frameless motorcycles.
以上の通り、この発明に係る自動2輪車などのミッショ
ン付多気筒エンジンは、前後2本のクランク軸が備えら
れ、それぞれに固定された2つのプライマリドライブギ
アがカウンタ軸上のプライマリドリブンギアに噛合い、
カウンタ軸とドライブ軸の間にミッションギア機構が介
装されたミッション付多気筒エンジンにおいて、上記カ
ウンタ軸とドライブ軸の軸心を結ぶ平面が前後クランク
軸間の前クランク軸寄りを通るように設定され、かつシ
リンダ列が前傾して搭載されたもので、伝導効率がJ:
り、かつ搭載」−のバランスや外観が勝れたものとする
効果がある。As described above, the multi-cylinder engine with a mission for a motorcycle or the like according to the present invention is equipped with two crankshafts, front and rear, and two primary drive gears fixed to each crankshaft are connected to the primary driven gear on the countershaft. meshing,
In a multi-cylinder engine with a mission in which a mission gear mechanism is interposed between the counter shaft and the drive shaft, the plane connecting the axes of the counter shaft and the drive shaft is set so that it passes near the front crankshaft between the front and rear crankshafts. and the cylinder row is mounted with forward tilt, and the conduction efficiency is J:
This has the effect of improving the balance and appearance of the vehicle and its mounting.
第1図(、(この発明の実施例を示すスクエア4エンジ
ンの要部の側面図、第2図は第1図のスクエア4エンジ
ンを搭載した自#)12輪車の側面図、第3図は一般的
なミッタ1ン+JエンジンのレイアラI・図、第4図は
従来のミッション付スクエア4エンジンのレイアウト図
である。
11・・・エンジンユニット、17a・・・前シリンダ
列、17b・・・後シリンダ列、’+sa、18b・・
・クランク軸、19a、19b・・・プライマリドライ
ブギア、20・・・カウンタ軸、21・・・プライマリ
ドリブ4.ンア、22・・・ミッシジンドライブギア列
、23・・・ドライブ軸、24・・・ミッションドリブ
ン117列。Figure 1 is a side view of the main parts of a square 4 engine showing an embodiment of the present invention, Figure 2 is a side view of a 12-wheeled vehicle equipped with the square 4 engine shown in Figure 1, Figure 3 Figure 4 is a layout diagram of a conventional square 4 engine with a transmission. 11...Engine unit, 17a...Front cylinder row, 17b...・Rear cylinder row, '+sa, 18b...
- Crankshaft, 19a, 19b...Primary drive gear, 20...Counter shaft, 21...Primary drive 4. 22...Missing drive gear train, 23...Drive shaft, 24...Mission driven 117th row.
Claims (1)
が前後に並設され、両クランク軸に固定されたプライマ
リドライブギアがカウンタ軸上のプライマリドリブンギ
アに噛合い、カウンタ軸とドライブ軸との間にミッショ
ンギア機構が介装された自動2輪車などのミッション付
多気筒エンジンにおいて、カウンタ軸とドライブ軸の軸
心を結ぶ平面が前後クランク軸間の前クランク軸寄りを
通るように設定されると共に、上記シリンダ列が前傾し
て搭載されたことを特徴とする自動2輪車などのミッシ
ョン付多気筒エンジン。The crankshafts of the front cylinder row and the crankshafts of the rear cylinder row are arranged side by side, front and back, and the primary drive gear fixed to both crankshafts meshes with the primary driven gear on the countershaft, and the crankshaft between the countershaft and the drive shaft In a multi-cylinder engine with a mission, such as a two-wheeled motor vehicle, in which a mission gear mechanism is installed, the plane connecting the axes of the counter shaft and the drive shaft is set to pass between the front and rear crankshafts, closer to the front crankshaft. Also, a multi-cylinder engine with a transmission for a motorcycle, etc., characterized in that the above-mentioned cylinder row is mounted tilted forward.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63100157A JP2666351B2 (en) | 1988-04-25 | 1988-04-25 | Multi-cylinder engine with transmission such as motorcycle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63100157A JP2666351B2 (en) | 1988-04-25 | 1988-04-25 | Multi-cylinder engine with transmission such as motorcycle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01273834A true JPH01273834A (en) | 1989-11-01 |
JP2666351B2 JP2666351B2 (en) | 1997-10-22 |
Family
ID=14266483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63100157A Expired - Lifetime JP2666351B2 (en) | 1988-04-25 | 1988-04-25 | Multi-cylinder engine with transmission such as motorcycle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2666351B2 (en) |
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CN107288754A (en) * | 2017-07-28 | 2017-10-24 | 肖光宇 | A kind of transmission system of piston reciprocating twin-tub in parallel |
CN107725186A (en) * | 2017-08-26 | 2018-02-23 | 肖光宇 | A kind of piston reciprocating large-sized low-speed engine |
CN107989694A (en) * | 2017-11-05 | 2018-05-04 | 肖光宇 | A kind of U-shaped piston reciprocating engine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57159926A (en) * | 1981-03-25 | 1982-10-02 | Honda Motor Co Ltd | Multi-cylinder engine |
-
1988
- 1988-04-25 JP JP63100157A patent/JP2666351B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57159926A (en) * | 1981-03-25 | 1982-10-02 | Honda Motor Co Ltd | Multi-cylinder engine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107237689A (en) * | 2017-07-28 | 2017-10-10 | 肖光宇 | A kind of piston reciprocating bi-block engine |
CN107288754A (en) * | 2017-07-28 | 2017-10-24 | 肖光宇 | A kind of transmission system of piston reciprocating twin-tub in parallel |
CN107725186A (en) * | 2017-08-26 | 2018-02-23 | 肖光宇 | A kind of piston reciprocating large-sized low-speed engine |
CN107989694A (en) * | 2017-11-05 | 2018-05-04 | 肖光宇 | A kind of U-shaped piston reciprocating engine |
Also Published As
Publication number | Publication date |
---|---|
JP2666351B2 (en) | 1997-10-22 |
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