JPH0236784B2 - - Google Patents
Info
- Publication number
- JPH0236784B2 JPH0236784B2 JP62254737A JP25473787A JPH0236784B2 JP H0236784 B2 JPH0236784 B2 JP H0236784B2 JP 62254737 A JP62254737 A JP 62254737A JP 25473787 A JP25473787 A JP 25473787A JP H0236784 B2 JPH0236784 B2 JP H0236784B2
- Authority
- JP
- Japan
- Prior art keywords
- throttle
- carburetor
- carburetors
- opposite directions
- shafts
- 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.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は内燃機関における気化器の取付構造に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mounting structure for a carburetor in an internal combustion engine.
車体の前後方向に傾斜された複数個の気筒を有
するＶ型エンジンにおいては、気筒間に形成され
た空間に気化器を配設するのが一般的である。こ
の種のＶ型エンジンに備えられる気化器として
は、例えば実公昭53−29852号公報に開示された
ものがある。これは２個の気化器を互いに対向す
るように逆向きに各気筒に接続し、各気化器のス
ロツトル軸間に、支軸によつて回動自在に支持さ
れたプーリを設け、このプーリと各スロツトル軸
との間をリンクを介して連結することによつて、
各スロツトル軸を互いに反対方向へ回動させるよ
うに構成されている。
In a V-type engine having a plurality of cylinders inclined in the longitudinal direction of a vehicle body, a carburetor is generally disposed in a space formed between the cylinders. An example of a carburetor for this type of V-type engine is disclosed in Japanese Utility Model Publication No. 53-29852. In this method, two carburetors are connected to each cylinder in opposite directions so as to face each other, and a pulley rotatably supported by a support shaft is provided between the throttle shafts of each carburetor. By connecting each throttle axis via a link,
The throttle shafts are configured to rotate in opposite directions.
しかしながら、このような構造では、プーリお
よびリンクによつて、各スロツトル軸を互いに反
対方向へ回動させているために、各スロツトル軸
に加えてプーリを支持する軸を特別に設けなけれ
ばならないという不具合があつた。
However, in such a structure, each throttle shaft is rotated in opposite directions by the pulley and link, so in addition to each throttle shaft, a special shaft must be provided to support the pulley. There was a problem.
本発明はこのような事情に鑑みなされたもの
で、各スロツトル軸を互いに反対方向へ回動させ
る構造としても、特別な軸を設ける必要がない内
燃機関における気化器の取付構造を提供するもの
である。本発明に係る気化器の取付構造は、互い
に逆向きにかつスロツトル軸を前後方向に離間さ
せた状態で各気筒に接続された一対の気化器を気
筒間に配設し、一方の気化器のスロツトル軸の外
側にスロツトル操作系を連結すると共に、各スロ
ツトル軸の内側にそれぞれレバー部材を設け、こ
れらレバー部材間に、各スロツトル軸が互いに反
対方向に回動するように両レバー部材を連結する
連結部材を設けたものである。
The present invention has been made in view of the above circumstances, and provides a structure for mounting a carburetor in an internal combustion engine that does not require a special shaft even if the throttle shafts are rotated in opposite directions. be. In the carburetor mounting structure according to the present invention, a pair of carburetors are connected to each cylinder in opposite directions and with their throttle axes spaced apart in the front-rear direction. A throttle operating system is connected to the outside of the throttle shaft, and a lever member is provided inside each throttle shaft, and both lever members are connected between these lever members so that each throttle shaft rotates in opposite directions. A connecting member is provided.
本発明においては、外部からの操作力は直接一
方の気化器のスロツトル軸に伝達され、このスロ
ツトル軸の回動が連結部材によつてその回動方向
が反対になるように変換された後に他方の気化器
のスロツトル軸に伝達されるので、各スロツトル
軸は互いに反対方向に回動するようになる。
In the present invention, an external operating force is directly transmitted to the throttle shaft of one carburetor, and after the rotation of the throttle shaft is converted to the opposite direction by the connecting member, The transmission is transmitted to the throttle shaft of the carburetor, so that each throttle shaft rotates in opposite directions.
以下、本発明の一実施例を図により詳細に説明
する。第１図は本発明に係る内燃機関における気
化器の取付構造が実施された気化器を示す第２図
の−線断面図、第２図は気化器を示す正面
図、第３図は自動二輪車の一部を示す側面図、第
４図は気化器を示す側面図である。第３図におい
て、符号１０で示すものは自動二輪車１２に塔載
されたＶ型エンジンを示し、車体の前後方向に傾
斜された２個の気筒１０ａおよび気筒１０ｂを備
えている。これら気筒１０ａ，１０ｂは気筒間に
Ｖ型空間を形成しており、内側面には吸気ポート
がそれぞれ開口されている。これら吸気ポートの
開口面は気筒の傾斜に応じて傾斜している。
Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a sectional view taken along the line - - of Fig. 2 showing a carburetor in which the carburetor mounting structure for an internal combustion engine according to the present invention is implemented, Fig. 2 is a front view showing the carburetor, and Fig. 3 is a motorcycle. FIG. 4 is a side view showing a part of the carburetor. In FIG. 3, the reference numeral 10 indicates a V-type engine mounted on a motorcycle 12, and includes two cylinders 10a and 10b inclined in the longitudinal direction of the vehicle body. These cylinders 10a and 10b form a V-shaped space between the cylinders, and each has an intake port opened on its inner surface. The opening surfaces of these intake ports are inclined in accordance with the inclination of the cylinder.
１１ａ，１１ｂはＶ型空間に配設された蝶型の
スロツトルバルブを有する一対の気化器である。
これら気化器１１ａ，１１ｂは気筒１０ａ，１０
ｂの吸気ポートに対応して車幅方向に並べて配置
され、しかもその向きは互いに逆向きとされかつ
スロツトル軸１６ａ，１６ｂを車体の前後方向に
離間させた状態で前記各吸気ポートに接続されて
いる。ここで、各気化器１１ａ，１１ｂはその吸
気流方向軸線１３ａ，１３ｂが傾斜して配置され
ている。すなわち、各気化器の吸気上流側１４は
前記吸気ポートに接続される吸気下流側１５より
も高く配設されている。 Reference numerals 11a and 11b are a pair of carburetors having butterfly-shaped throttle valves arranged in a V-shaped space.
These carburetors 11a, 11b are cylinders 10a, 10.
The throttle shafts 16a and 16b are connected to the respective intake ports with the throttle shafts 16a and 16b spaced apart from each other in the longitudinal direction of the vehicle body. There is. Here, each of the carburetors 11a and 11b is arranged with its intake flow direction axis 13a and 13b inclined. That is, the intake upstream side 14 of each carburetor is disposed higher than the intake downstream side 15 connected to the intake port.
すなわち、前方の気筒１０ａのための気化器１
１ａはその吸気流の流れ方向を自動二輪車の後方
から前方へ、また後方の気筒１０ｂのための気化
器１１ｂにおいてはその逆になるように配置され
ている。そのため、各気化器１１ａ，１１ｂの吸
気流方向軸線１３ａ，１３ｂは第４図に示される
ように平面的にみたとき交差することとなる。 That is, the carburetor 1 for the front cylinder 10a
1a is arranged so that the flow direction of the intake air flow is from the rear to the front of the motorcycle, and vice versa in the carburetor 11b for the rear cylinder 10b. Therefore, the intake flow direction axes 13a and 13b of the respective carburetors 11a and 11b intersect when viewed in plan, as shown in FIG. 4.
ところで、２つの気化器１１ａ，１１ｂを並列
にかつ互いに反対方向へ向けて配置したとき、そ
れらのスロツトルバルブ開閉の同調が問題とな
る。すなわち、第２図に示すように、２個の気化
器１１ａ，１１ｂの対向する内側面に突出したそ
れぞれのスロツトルバルブ開閉用のスロツトル軸
１６ａ，１６ｂは互いに反対方向へ回動させなけ
ればならない。そのため、その位置を前後方向に
ずらして対向して突出されたスロツトル軸１６
ａ，１６ｂは第１図に示すような同調装置２０で
同調作動される。 By the way, when the two carburetors 11a and 11b are arranged in parallel and facing in opposite directions, a problem arises in synchronizing the opening and closing of their throttle valves. That is, as shown in FIG. 2, the throttle shafts 16a and 16b for opening and closing the throttle valves protruding from the opposing inner surfaces of the two carburetors 11a and 11b must be rotated in opposite directions. . Therefore, the throttle shafts 16 are protruded from opposite positions with their positions shifted in the front-rear direction.
a, 16b are operated in tune by a tuning device 20 as shown in FIG.
これを詳述すれば、各スロツトル軸１６ａ，１
６ｂの内側には、半円形状のレバー部材１７ａ，
１７ｂが固定的に取付けられている。このレバー
部材１７ａ，１７ｂはその周面にワイヤ１８を収
容するに足る周面溝が形成されていると同時にワ
イヤ１８の端部を固定的に接続するための耳部１
９ａ，１９ｂを備えている。そして、このワイヤ
１８は、レバー部材１７ａ，１７ｂ間に介在し、
一端をレバー部材１７ａの耳部１９ａに接続し、
次いでこのレバー部材１７ａの周面溝を介して他
方のレバー部材１７ｂの周面溝にけさ掛け的に巻
き付けられ、その他端を耳部１９ｂに接続されて
いる。換言すると、ワイヤ１８は各スロツトル軸
１６ａ，１６ｂが互いに反対方向に回動するよう
に両レバー部材１７ａ，１７ｂを連結する連結部
材を構成している。 To explain this in detail, each throttle shaft 16a, 1
Inside the lever member 6b, a semicircular lever member 17a,
17b is fixedly attached. These lever members 17a and 17b have a circumferential groove sufficient to accommodate the wire 18 formed on the circumferential surface thereof, and at the same time an ear portion 1 for fixedly connecting the end of the wire 18.
9a and 19b. This wire 18 is interposed between the lever members 17a and 17b,
Connect one end to the ear part 19a of the lever member 17a,
Next, it is wrapped around the circumferential groove of the other lever member 17b via the circumferential groove of this lever member 17a, and the other end is connected to the ear portion 19b. In other words, the wire 18 constitutes a connecting member that connects the lever members 17a, 17b so that the throttle shafts 16a, 16b rotate in opposite directions.
また、一対の気化器１１ａ，１１ｂのうち、一
方の気化器１１ｂのスロツトル軸１６ｂの気化器
１１ｂを横断した外側の端部には、同様なレバー
部材（図示せず）が取付けられ、自動二輪車のス
ロツトルグリツプから伸長するスロツトルワイヤ
２１（第２図）の先端がそのレバー部材に前述し
たと同様にして接続されている。換言すると、気
化器１１ｂのスロツトル軸１６ｂの外側にスロツ
トル操作系が直接に連結されている。 Further, a similar lever member (not shown) is attached to the outer end of the throttle shaft 16b of one of the pair of carburetors 11a and 11b, which crosses the carburetor 11b. The tip of a throttle wire 21 (FIG. 2) extending from the throttle grip is connected to the lever member in the same manner as described above. In other words, the throttle operating system is directly connected to the outside of the throttle shaft 16b of the carburetor 11b.
なお、２２は気化器１１ｂに設けられたアイド
ルストツパを示し、このアイドルストツパ２２に
当接する係止部２３は前記レバー部材１７ｂに形
成されている。 Note that 22 indicates an idle stopper provided on the carburetor 11b, and a locking portion 23 that comes into contact with this idle stopper 22 is formed on the lever member 17b.
このように構成された内燃機関における気化器
の取付構造が実施された気化器においては、スロ
ツトルグリツプを回動させると、この回動に応答
してスロツトルワイヤ２１が操作され、操作力が
直接に一方の気化器１１ｂのスロツトル軸１６ｂ
に伝達されるので、スロツトル軸１６ｂが回動さ
れる。また、これと同時にスロツトル軸１６ｂの
回動がワイヤ１８によつてその回動方向が反対に
なるように変換された後に他方の気化器１１ａの
スロツトル軸１６ａに伝達される。したがつて、
各スロツトル軸１６ａ，１６ｂは互いに反対方向
へ回動され、両気化器１１ａ，１１ｂのスロツト
ルバルブの作動が同調される。 In a carburetor in which the carburetor mounting structure for an internal combustion engine configured as described above is implemented, when the throttle grip is rotated, the throttle wire 21 is operated in response to this rotation, and the operating force is increased. directly to the throttle shaft 16b of one carburetor 11b.
The throttle shaft 16b is rotated. At the same time, the rotation of the throttle shaft 16b is reversed by the wire 18 and then transmitted to the throttle shaft 16a of the other carburetor 11a. Therefore,
The throttle shafts 16a, 16b are rotated in opposite directions to synchronize the operations of the throttle valves of both carburetors 11a, 11b.
以上説明したように本発明によれば、互いに逆
向きにかつスロツトル軸を前後方向に離間させた
状態で各気筒に接続された一対の気化器を気筒間
に配設し、一方の気化器のスロツトル軸の外側に
スロツトル操作系を連結すると共に、各スロツト
ル軸の内側にそれぞれレバー部材を設け、これら
レバー部材間に、各スロツトル軸が互いに反対方
向に回動するように両レバー部材を連結する連結
部材を設けたから、外部からの操作力を直接一方
の気化器のスロツトル軸に伝達し、このスロツト
ル軸の回動を連結部材によつてその回動方向が反
対になるように変換した後に他方の気化器のスロ
ツトル軸に伝達することができる。
As explained above, according to the present invention, a pair of carburetors are arranged between the cylinders, and the two carburetors are connected to each cylinder in opposite directions and with the throttle shafts spaced apart in the longitudinal direction. A throttle operating system is connected to the outside of the throttle shaft, and a lever member is provided inside each throttle shaft, and both lever members are connected between these lever members so that each throttle shaft rotates in opposite directions. Since the connecting member is provided, the operating force from the outside is directly transmitted to the throttle shaft of one carburetor, and the rotation of this throttle shaft is converted to the opposite direction by the connecting member, and then the rotation direction of the throttle shaft is converted to the opposite direction by the connecting member. can be transmitted to the throttle shaft of the carburetor.
したがつて、レバー部材および連結部材によつ
て、各スロツトル軸を互いに反対方向に回動させ
ることができるから、各気化器のスロツトル軸を
互いに反対方向に回動させる構造としても、何ら
軸を特別に設ける必要がない。 Therefore, each throttle shaft can be rotated in opposite directions by the lever member and the connecting member, so even if the throttle shafts of each carburetor are configured to be rotated in opposite directions, there is no need to use any shafts. There is no need to provide it specially.
また、気筒間に並設した気化器の間に、スロツ
トル軸間を連結すると共にこれらを互いに反対方
向に回動させるための部材を設けたから、吸気装
置全体の小型化がはかれ、特に自動二輪車への適
用上有利となる。 In addition, a member is provided between the carburetors arranged in parallel between the cylinders to connect the throttle shafts and rotate them in opposite directions, making it possible to downsize the entire intake system, especially for motorcycles. This is advantageous when applied to
第１図は本発明に係る内燃機関における気化器
の取付構造が実施された気化器を示す第２図の
−線断面図、第２図は気化器を示す正面図、第
３図は自動二輪車の一部を示す側面図、第４図は
気化器を示す側面図である。
１０ａ，１０ｂ……気筒、１１ａ，１１ｂ……
気化器、１６ａ，１６ｂ……スロツトル軸、１７
ａ，１７ｂ……レバー部材、１８……ワイヤ、２
１……スロツトルワイヤ。
Fig. 1 is a sectional view taken along the line - - of Fig. 2 showing a carburetor in which the carburetor mounting structure for an internal combustion engine according to the present invention is implemented, Fig. 2 is a front view showing the carburetor, and Fig. 3 is a motorcycle. FIG. 4 is a side view showing a part of the carburetor. 10a, 10b...Cylinder, 11a, 11b...
Carburetor, 16a, 16b...Throttle shaft, 17
a, 17b... Lever member, 18... Wire, 2
1...Throttle wire.
Claims (1)
０ａ，１０ｂを有する内燃機関において、前記気
筒間に形成された空間に、互いに逆向きにかつス
ロツトル軸１６ａ，１６ｂを前後方向に離間させ
た状態で各気筒１０ａ，１０ｂに接続された一対
の気化器１１ａ，１１ｂを並設し、一方の気化器
１１ｂのスロツトル軸１６ｂの外側にスロツトル
操作系を連結すると共に、両気化器１１ａ，１１
ｂ間に臨むスロツトル軸１６ａ，１６ｂの内側に
それぞれレバー部材１７ａ，１７ｂを設け、これ
らレバー部材１７ａ，１７ｂ間を、各スロツトル
軸１６ａ，１６ｂを互いに反対方向に回動させる
連結部材１８で連結してなる内燃機関における気
化器の取付構造。1 Multiple cylinders 1 inclined in the longitudinal direction of the vehicle body
In an internal combustion engine having 0a and 10b, a pair of carburetors are connected to each cylinder 10a and 10b in opposite directions to each other and with throttle shafts 16a and 16b spaced apart in the longitudinal direction. The two carburetors 11a and 11b are arranged in parallel, and a throttle operation system is connected to the outside of the throttle shaft 16b of one carburetor 11b, and both carburetors 11a and 11
Lever members 17a and 17b are provided inside the throttle shafts 16a and 16b facing between the throttle shafts 16a and 16b, respectively, and these lever members 17a and 17b are connected by a connecting member 18 that rotates the throttle shafts 16a and 16b in mutually opposite directions. Mounting structure of carburetor in internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25473787A JPS63140853A (en) | 1987-10-12 | 1987-10-12 | Mounting structure for carburetor in internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25473787A JPS63140853A (en) | 1987-10-12 | 1987-10-12 | Mounting structure for carburetor in internal combustion engine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3906680A Division JPS56138453A (en) | 1980-03-28 | 1980-03-28 | Fixing structure of carburetor for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63140853A JPS63140853A (en) | 1988-06-13 |
| JPH0236784B2 true JPH0236784B2 (en) | 1990-08-20 |
Family
ID=17269158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25473787A Granted JPS63140853A (en) | 1987-10-12 | 1987-10-12 | Mounting structure for carburetor in internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63140853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417264U (en) * | 1990-05-31 | 1992-02-13 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4326169Y1 (en) * | 1965-06-19 | 1968-11-01 | ||
| JPS5514906A (en) * | 1978-07-15 | 1980-02-01 | Yamaha Motor Co Ltd | Engine suction unit for motorbicycle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5138118U (en) * | 1974-09-17 | 1976-03-22 |
-
1987
- 1987-10-12 JP JP25473787A patent/JPS63140853A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4326169Y1 (en) * | 1965-06-19 | 1968-11-01 | ||
| JPS5514906A (en) * | 1978-07-15 | 1980-02-01 | Yamaha Motor Co Ltd | Engine suction unit for motorbicycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0417264U (en) * | 1990-05-31 | 1992-02-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63140853A (en) | 1988-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2759461B2 (en) | Engine intake system | |
| US4840029A (en) | Exhaust gas control means for engine | |
| JPH0236784B2 (en) | ||
| JPH07158457A (en) | Intake control device for multiple cylinder internal combustion engine | |
| JP2537076B2 (en) | Internal combustion engine intake system | |
| JP3395009B2 (en) | Engine intake system | |
| JPH02115521A (en) | Air intake device of multiple cylinder internal combustion engine | |
| JPS58174149A (en) | Connecting device of compound carburetor | |
| TWI664349B (en) | Internal combustion engine and straddled vehicle | |
| JP2915030B2 (en) | Engine intake system | |
| JPH0159404B2 (en) | ||
| JP3843149B2 (en) | Throttle valve coupling mechanism for outboard engine | |
| JPS6321030B2 (en) | ||
| JPS6193259A (en) | Carburetor coupling structure in multi-cylinder type engine | |
| JPH0816452B2 (en) | Exhaust timing control device for V-type 2-cycle engine | |
| US6295960B1 (en) | Intake manifold communication valve | |
| JPS626085B2 (en) | ||
| JPH07166876A (en) | Intake control device for multicylinder internal combustion engine | |
| JPH033922A (en) | Exhaust device for multi-cylinder internal combustion engine | |
| JPS62162759A (en) | Carburetor device for multicylinder engine for motorcycle | |
| JPH07229429A (en) | Intake air controller | |
| JPS6154934B2 (en) | ||
| JPS622283Y2 (en) | ||
| JP3539602B2 (en) | Exhaust system for multi-cylinder engine | |
| JP3170934B2 (en) | Two-cycle V-type engine |