JPH0629578B2 - Synchronous opening / closing device for intake throttle valve of multi-cylinder internal combustion engine in motorcycle - Google Patents
Synchronous opening / closing device for intake throttle valve of multi-cylinder internal combustion engine in motorcycleInfo
- Publication number
- JPH0629578B2 JPH0629578B2 JP59031058A JP3105884A JPH0629578B2 JP H0629578 B2 JPH0629578 B2 JP H0629578B2 JP 59031058 A JP59031058 A JP 59031058A JP 3105884 A JP3105884 A JP 3105884A JP H0629578 B2 JPH0629578 B2 JP H0629578B2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- throttle valve
- carburetor
- internal combustion
- combustion engine
- 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 title claims description 16
- 230000001360 synchronised effect Effects 0.000 title claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Classifications
-
- 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
- F02M13/00—Arrangements of two or more separate carburettors; Carburettors using more than one fuel
- F02M13/02—Separate carburettors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
- F02D2011/102—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being moved only by an electric actuator
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- 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） 本発明は自動二輪車における多気筒内燃機関、特にシリ
ンダをほゞ水平及び垂直とした所謂Ｌ型配置の多気筒内
燃機関の吸気絞り弁の同調開閉装置に関する。Description: TECHNICAL FIELD The present invention relates to a multi-cylinder internal combustion engine for a motorcycle, and more particularly to tuning of an intake throttle valve of a so-called L-shaped multi-cylinder internal combustion engine in which the cylinders are substantially horizontal and vertical. Regarding switchgear.
（従来技術） 多気筒内燃機関には複数の吸気通路を設け、この複数の
吸気通路に夫々吸入空気量を制御する絞り弁を設け、こ
の絞り弁をひとつの操作子により互に同調して開閉する
ようにしたものがある。このような場合に用いられる絞
り弁の同調開閉装置として、各絞り弁の作動軸を機械的
リンク装置により連動したもの（例えば実公昭５６−４
６０４１号公報）がある。これは各絞り弁の同調関係は
良く保たれるが、各吸気通路の配置関係の制限を受け、
例えば第１図に示す如き配置の場合は、各吸気通路２
２，２２ａに設けた気化器３０，３０ａがシリンダ２１
の両側に位置するので、各絞り弁の作動軸３２，３２ａ
をリンク装置により連動することができない。これを解
決する手段として外筒と内索よりなるコントロールケー
ブルにより各絞り弁を連動するものがあるが、外筒と内
索間のガタや摩擦により正しい同調を保つことが困難で
あり、特に自動二輪車等の如くエンジンその他による振
動が多いものゝ場合は、コントロールケーブルが振れて
外筒に対する内索の引張り具合が変化するので、正しい
同調を得ることが困難である。(Prior Art) A multi-cylinder internal combustion engine is provided with a plurality of intake passages, and a throttle valve for controlling the intake air amount is provided in each of the plurality of intake passages, and the throttle valves are opened and closed in synchronization with each other by a single operator. There are things I tried to do. A throttle valve synchronous opening / closing device used in such a case is one in which the operating shaft of each throttle valve is interlocked by a mechanical link device (for example, Japanese Utility Model Publication No. 56-4).
No. 6041). This keeps the tuning relationship of each throttle valve well, but limits the layout relationship of each intake passage,
For example, in the case of the arrangement shown in FIG. 1, each intake passage 2
The carburetors 30 and 30a provided on the cylinders 22 and 22a are
Since they are located on both sides of the
Cannot be linked by a link device. As a means to solve this, there is a control cable that consists of an outer cylinder and an inner cable that links each throttle valve, but it is difficult to maintain correct synchronization due to backlash and friction between the outer cylinder and the inner cable. In the case of a motorcycle or the like that has a large amount of vibration due to the engine or the like, it is difficult to obtain correct synchronization because the control cable shakes and the tension of the inner cable with respect to the outer cylinder changes.
このような問題を解決するために、第１図及び第２図に
示すようなものが考えられる。すなわち、運転者により
操作される操作子５０の回動変位はトランスジューサ４
２により電気的変位信号に変換されてコントロールユニ
ット４０に送られ、これにもとずきコントロールユニッ
ト４０は電気的駆動信号を発生して複数の気化器３０，
３０ａの絞り弁３２，３２ａに連結した各サーボモータ
４１，４１ａに同時に送り、各絞り弁３２，３２ａを同
調して操作子５０の回動変位に対応する開度まで回動変
位させる。In order to solve such a problem, the ones shown in FIGS. 1 and 2 can be considered. That is, the rotational displacement of the operating element 50 operated by the driver is changed by the transducer 4
2 is converted into an electric displacement signal and sent to the control unit 40. Based on this, the control unit 40 generates an electric drive signal to generate a plurality of vaporizers 30,
The servomotors 41 and 41a connected to the throttle valves 32 and 32a of the actuator 30a are simultaneously sent to tune the throttle valves 32 and 32a to rotationally displace to an opening corresponding to the rotational displacement of the manipulator 50.
第１図において車体の主要部であるフレーム２０は前後
部を夫々前フォーク１１と前輪１２及びリヤアーム１３
と後輪１４により支持し、前上部には燃料タンク１５
を、その後にシート１６を載置する。前フォーク１１上
部にはハンドルバー１７を固定する。In FIG. 1, a frame 20, which is a main part of the vehicle body, includes front and rear parts, a front fork 11, a front wheel 12, and a rear arm 13, respectively.
And the rear wheels 14 support the fuel tank 15 on the upper front.
And then the sheet 16 is placed. A handlebar 17 is fixed to the upper part of the front fork 11.
フレーム１０の下部に搭載した多気筒内燃機関２０は所
謂Ｌ型配置のシリンダ２１，２１ａを有し、上向シリン
ダ２１は後方にサイドドラフト型気化器３０を備えた吸
気通路２２を設けてクリーナボックス２６より空気を吸
入し、ハンドルバー１７の下方に配置された前向きシリ
ンダ２１ａは上方にダウンドラフト型気化器３０ａを備
えた吸気通路２２ａを設けてクリーナボックス２６ａよ
り空気を吸入する。各シリンダ２１，２１ａの排気は各
排気口２３，２３ａに接続した排気管２４，２４ａを介
してマフラ２５に導かれ、消音して後方に排出される。The multi-cylinder internal combustion engine 20 mounted on the lower portion of the frame 10 has so-called L-shaped arrangements of cylinders 21 and 21a, and the upward cylinder 21 has an intake passage 22 provided with a side draft type carburetor 30 at the rear side thereof and a cleaner box. Air is sucked in from the valve 26, and the forward cylinder 21a arranged below the handlebar 17 is provided with an intake passage 22a provided with a downdraft type carburetor 30a in the upper part thereof to suck air from the cleaner box 26a. The exhaust gas of each cylinder 21, 21a is guided to the muffler 25 via the exhaust pipes 24, 24a connected to the exhaust ports 23, 23a, is silenced, and is exhausted rearward.
各吸気通路２２，２２ａに設けた気化器３０，３０ａの
絞り弁３２，３２ａの同調開閉装置の詳細を第２図に示
す。各気化器３０，３０ａのボァ３１，３１ａは各吸気
通路２２，２２ａの一部を形成し、このボァ３１，３１
ａ内に絞り弁３２，３２ａを開閉可能に設ける。各絞り
弁３２，３２ａは、後述のコントロールユニット４０に
より駆動されるサーボモータ４１，４１ａに連結した作
動軸３３，３３ａに固定されて開閉する。FIG. 2 shows the details of the synchronized switching device for the throttle valves 32, 32a of the carburetors 30, 30a provided in the intake passages 22, 22a. The bores 31, 31a of each carburetor 30, 30a form a part of each intake passage 22, 22a.
The throttle valves 32, 32a are provided in a so that they can be opened and closed. Each throttle valve 32, 32a is fixed to an operating shaft 33, 33a connected to a servo motor 41, 41a driven by a control unit 40 described later to open and close.
フレーム１０の一部に設置したポテンショメータ等のト
ランスジューサ４２を、コントロールケーブル５１及び
レバー５２を介して、ハンドルバー１７の一端に回動自
在に設けたアクセルグリップ等の操作子５０により回動
し、操作子５０の回転角を電気的変位信号に変換し、電
気的結線４３を介してコントロールユニット４０に送
る。コントロールユニット４０は電気的変位信号を受け
てこれに対応した電気的駆動信号を発生し、並列に設け
た電気的結線４４，４４ａを経て、互に同一の特性を有
するサーボモータ４１，４１ａに送りこれを同調して回
動する。A transducer 42 such as a potentiometer installed in a part of the frame 10 is rotated by an operator 50 such as an accelerator grip rotatably provided at one end of the handlebar 17 via a control cable 51 and a lever 52 to operate. The rotation angle of the child 50 is converted into an electric displacement signal and sent to the control unit 40 via the electric connection 43. The control unit 40 receives the electric displacement signal and generates an electric drive signal corresponding to the electric displacement signal, and sends the electric drive signal to the servo motors 41 and 41a having the same characteristics through the electric connections 44 and 44a provided in parallel. This is synchronized and rotated.
アクセルグリップ等の操作子５０を回動すればコントロ
ールケーブル５１を介してトランスジューサ４２も回動
し、この回動は電気的変位信号に変換されてコントロー
ルユニット４０に送られる。これを受けてコントロール
ユニット４０は電気的駆動信号を発生してサーボモータ
４１，４１ａに送り、作動軸３３，３３ａを介して各絞
り弁３２，３２ａを、互に同調して、操作子５０の回動
角に対応する開度まで回動する。従って各絞り弁３２，
３２ａは操作子５０により互いに同調して開閉される。
しかしこの構造では、操作子により回動されるトランス
ジューサの他に各気化器毎にサーボモータを必要とする
ので、高価になるという問題がある。When the operator 50 such as the accelerator grip is rotated, the transducer 42 is also rotated through the control cable 51, and this rotation is converted into an electric displacement signal and sent to the control unit 40. In response to this, the control unit 40 generates an electric drive signal and sends it to the servomotors 41, 41a, and the throttle valves 32, 32a are tuned to each other via the actuating shafts 33, 33a so as to synchronize with each other. It rotates to the opening corresponding to the rotation angle. Therefore, each throttle valve 32,
32a is opened and closed by the operator 50 in synchronization with each other.
However, this structure requires a servomotor for each carburetor in addition to the transducer that is rotated by the operator, so that there is a problem in that it is expensive.
（発明の目的） 本発明は電気信号により各絞り弁を同調させることによ
り、各吸気通路の配置の自由度が大きく、また同調関係
の精度が高く、しかもサーボモータの数を減少して比較
的安価に実施できる、自動二輪車における多気筒内燃機
関の絞り弁の同調開閉装置を提供することを目的とす
る。(Object of the invention) The present invention synchronizes each throttle valve with an electric signal, so that the degree of freedom of arrangement of each intake passage is high, the precision of the tuning relationship is high, and the number of servomotors is reduced to be relatively high. An object of the present invention is to provide a throttle valve synchronous opening / closing device for a multi-cylinder internal combustion engine in a motorcycle that can be implemented at low cost.
（発明の構成） 上記目的達成のために、本発明による自動二輪車におけ
る多気筒内燃機関の吸気絞り弁の同調開閉装置は、上部
にハンドルバーが設けられた前フォーク及び前輪により
前部が支持されたフレームと、このフレームに搭載され
て前記ハンドルバーの下方に配置された前向きシリンダ
とこの前向きシリンダの後方に配置された上向きシリン
ダを有する多気筒内燃機関と、前記前向きシリンダの上
側に設けられて絞り弁とこれを作動させる作動軸を有す
るダウンドラフト型気化器と、前記上向きシリンダの後
側に設けられて絞り弁とこれを作動させる作動軸を有す
るサイドドラフト型気化器を備え、前記各絞り弁を前記
ハンドルバーに設けられた操作子により同調して開閉す
る自動二輪車における多気筒内燃機関において、前記操
作子の回動を前記前向きシリンダの気化器の作動軸に伝
達するコントロールケーブルと、前記前向きシリンダの
気化器の作動軸に連結されてその回動を電気的変位信号
に変換するトランスジューサと、前記フレームに取り付
けられ前記電気的変位信号を受けてこれに対応する電気
的駆動信号を発生するコントロールユニットと、前記上
向きシリンダの気化器の作動軸に連結され前記電気的駆
動信号を受けて同気化器の絞り弁を前記前向きシリンダ
の気化器の絞り弁の開度と同一開度まで変位させるサー
ボモータを備えたことを特徴とするものである。(Structure of the Invention) To achieve the above object, a synchronous opening / closing device for an intake throttle valve of a multi-cylinder internal combustion engine in a motorcycle according to the present invention has a front portion supported by a front fork and a front wheel provided with a handle bar on the upper portion. A multi-cylinder internal combustion engine having a frame, a forward-facing cylinder mounted on the frame below the handlebar, and an upward-facing cylinder disposed behind the forward-facing cylinder; and a multi-cylinder internal combustion engine provided above the forward-facing cylinder. Each of the throttles is provided with a down-draft carburetor having a throttle valve and an operating shaft for operating the throttle valve, and a side draft carburetor provided on the rear side of the upward cylinder and having a throttle valve and an operating shaft for operating the throttle valve. In a multi-cylinder internal combustion engine for a motorcycle in which a valve is opened and closed in synchronization with an operator provided on the handlebar, the operation A control cable for transmitting the rotation of the child to the working shaft of the carburetor of the forward cylinder, a transducer connected to the working shaft of the carburetor of the forward cylinder to convert the rotation into an electric displacement signal, and the frame. A control unit attached to the electric displacement signal and generating an electric drive signal corresponding to the electric displacement signal; and a control unit connected to the operating shaft of the carburetor of the upward cylinder and receiving the electric drive signal, A servo motor for displacing the throttle valve to the same opening degree as the throttle valve opening degree of the carburetor of the forward cylinder is provided.
（発明の効果） 上記本発明は、前向きシリンダの気化器の作動軸に連結
されたトランスジューサと、上向きシリンダの気化器の
作動軸に連結されたサーボモータと、フレームに取り付
けられたコントロールユニットを電気的配線により接続
すればよいので各吸気通路の配置が自由であり、また電
気信号は配線状態、振動等により変質することがないの
で同調関係の精度を保つことができる。しかも前向きシ
リンダの気化器にはサーボモータが不要であるので比較
的安価に実施することができる。またコントロールケー
ブルにより操作子に接続される前向きシリンダの気化器
はハンドルバーに接近しているのでコントロールケーブ
ルの長さを短くすることができ、操作子の操作力を軽く
することができる。(Effects of the Invention) According to the present invention, the transducer connected to the working shaft of the carburetor of the forward cylinder, the servomotor connected to the working shaft of the carburetor of the upward cylinder, and the control unit mounted on the frame are electrically connected. Since the intake passages can be freely arranged because they are connected by a dynamic wiring, and the electric signal does not change in quality due to the wiring state, vibration, etc., it is possible to maintain the accuracy of the tuning relationship. Moreover, since the carburetor of the forward cylinder does not need a servomotor, it can be implemented at a relatively low cost. Further, since the carburetor of the forward facing cylinder connected to the operator by the control cable is close to the handlebar, the length of the control cable can be shortened and the operating force of the operator can be lightened.
（実施例） 以下に第３図に示す実施例により、本発明の説明をす
る。本実施例に使用する内燃機関は、第１図と同様のＬ
型配置の多気筒内燃機関である。第１図と同様、ハンド
ルバー１７の下方に配置された前向きシリンダ２１ａに
設けたダウンドラフト型気化器３０ａの絞り弁３２ａの
作動軸３３ａは、コントロールケーブル５１ｂ及びレバ
ー５２ｂを介して、ハンドルバー１７に設けたアクセル
グリップ等の操作子５０により開閉され、この作動軸３
３ａにはその回動角を電気的変位信号に変換するトラン
スジューサ４２ｂが設けられている。また前向きシリン
ダ２１ａの後方に配置された上向きシリンダ２１の後側
に設けたサイドドラフト型気化器３０の絞り弁３２の作
動軸３３には、これを回動するサーボモータ４１が設け
られている。第１図と同様のフレーム１０に取り付けら
れたコントロールユニット４０はトランスジューサ４２
ｂからの電気的変位信号を受け、これに対応する電気的
駆動信号を発生してサーボモータ４１に送って、気化器
３０の絞り弁３２を回動するものである。(Example) The present invention will be described below with reference to an example shown in FIG. The internal combustion engine used in this embodiment has the same L as in FIG.
It is a multi-cylinder internal combustion engine with a mold layout. Similar to FIG. 1, the operation shaft 33a of the throttle valve 32a of the downdraft type carburetor 30a provided in the forward facing cylinder 21a arranged below the handlebar 17 is connected to the handlebar 17 via the control cable 51b and the lever 52b. This operating shaft 3 is opened and closed by an operator 50 such as an accelerator grip provided on the
3a is provided with a transducer 42b for converting the rotation angle into an electric displacement signal. Further, a servomotor 41 for rotating the operation shaft 33 of the throttle valve 32 of the side draft type carburetor 30 provided on the rear side of the upward cylinder 21 arranged behind the forward cylinder 21a is provided. The control unit 40 attached to the frame 10 similar to that shown in FIG.
The electric displacement signal from b is generated, an electric driving signal corresponding to the electric displacement signal is generated and sent to the servo motor 41, and the throttle valve 32 of the carburetor 30 is rotated.
本実施例においては、トランスジューサ４２ｂとサーボ
モータ４１とコントロールユニット４０は、気化器３０
の絞り弁３２の回動角が気化器３０ａの絞り弁３２ａの
回動角と同一となるように、それぞれの特性を選ぶもの
とする。本実施例のこれ以外の構成は、先に第１図及び
第２図により説明したものと同じであるので、詳細な説
明は省略する。本実施例ではコントロールユニット４０
により駆動される絞り弁は１個であるが、これを２個以
上とすることも可能である。In the present embodiment, the transducer 42b, the servo motor 41, and the control unit 40 are connected to the carburetor 30.
The respective characteristics are selected so that the rotation angle of the throttle valve 32 is the same as the rotation angle of the throttle valve 32a of the carburetor 30a. The rest of the configuration of this embodiment is the same as that described above with reference to FIGS. 1 and 2, and therefore detailed description thereof is omitted. In this embodiment, the control unit 40
Although there is one throttle valve driven by, it is possible to have two or more throttle valves.
上記実施例において使用するサーボモータの形式は特に
制限はないが、コスト及び寸法の面よりすればステップ
モータが好ましい。この場合、操作子との同調精度を高
めるには、ステップモータの出力軸を減速して絞り弁の
作動軸に連結することが好ましい。The type of the servo motor used in the above embodiment is not particularly limited, but a step motor is preferable in terms of cost and size. In this case, it is preferable to reduce the speed of the output shaft of the step motor and connect the output shaft of the step motor to the operation shaft of the throttle valve in order to improve the tuning accuracy with the operator.
（実施例の効果） 上記実施例は操作子５０により前向きシリンダ２１ａの
気化器３０の絞り弁３２ａを直接開閉すると同時にコン
トロールユニット４０に電気的変位信号を与えるトラン
スジューサ４２ｂを作動軸３３ａにより回動し、コント
ロールユニット４０の発生する電気的駆動信号をサーボ
モータ４１に送って他方の絞り弁３２を開閉しているの
で、両絞り弁３２，３２ａは電気信号により同調され、
吸気通路２２，２２ａの配置の制限を受けず、また配線
状態、振動等により同調関係に誤差が生ずることはな
い。上記実施例においてはトランスジューサ４２ｂとサ
ーボモータ４１の特性のマッチングが必要となるが、前
向きシリンダ２１ａの気化器３０ａにはサーボモータが
不要であるので比較的安価に実施することができる。ま
たコントロールケーブル５１ｂにより操作子５０に接続
される前向きシリンダ２１ａの気化器３０ａはハンドル
バー１７に接近しているのでコントロールケーブル５１
ｂの長さを短くすることができ、操作子５０の操作力を
軽くすることができる。(Effects of the Embodiment) In the above embodiment, the operator 50 directly opens and closes the throttle valve 32a of the carburetor 30 of the forward cylinder 21a, and at the same time, the transducer 42b for giving an electric displacement signal to the control unit 40 is rotated by the operating shaft 33a. Since the electric drive signal generated by the control unit 40 is sent to the servo motor 41 to open and close the other throttle valve 32, both throttle valves 32 and 32a are tuned by the electric signal,
There is no restriction on the arrangement of the intake passages 22 and 22a, and there is no error in the tuning relationship due to wiring conditions, vibrations, and the like. In the above embodiment, it is necessary to match the characteristics of the transducer 42b and the servo motor 41, but the carburetor 30a of the forward cylinder 21a does not require a servo motor, so that it can be implemented at a relatively low cost. Further, since the carburetor 30a of the forward facing cylinder 21a connected to the operator 50 by the control cable 51b is close to the handlebar 17, the control cable 51
The length of b can be shortened, and the operating force of the operating element 50 can be reduced.
第１図は本発明の前段階の技術を備えた自動二輪車の側
面図、第２図は第１図の技術の主要部の斜視図、第３図
は本発明の一実施例の第２図に相当する斜視図である。 符号の説明 １０……フレーム、１１……前フォーク、１７……ハン
ドルバー、２０……多気筒内燃機関、２１……上向きシ
リンダ、２１ａ……前向きシリンダ、３０，３０ａ……
気化器、３２，３２ａ……絞り弁３２ａ、３３，３３ａ
……作動軸、４０……コントロールユニット、４１……
サーボモータ、４２ｂ……トランスジューサ、５０……
操作子、５１ｂ……コントロールケーブル。FIG. 1 is a side view of a motorcycle equipped with the technique of the previous stage of the present invention, FIG. 2 is a perspective view of the main part of the technique of FIG. 1, and FIG. 3 is a second diagram of an embodiment of the present invention. It is a perspective view corresponding to. Explanation of symbols 10 ... Frame, 11 ... Front fork, 17 ... Handlebar, 20 ... Multi-cylinder internal combustion engine, 21 ... Upward cylinder, 21a ... Forward cylinder, 30, 30a.
Vaporizer, 32, 32a ... Throttle valve 32a, 33, 33a
...... Operating axis, 40 ...... Control unit, 41 ......
Servo motor, 42b ... Transducer, 50 ...
Operator, 51b ... Control cable.
Claims (1)
ク及び前輪により前部が支持されたフレームと、このフ
レームに搭載されて前記ハンドルバーの下方に配置され
た前向きシリンダとこの前向きシリンダの後方に配置さ
れた上向きシリンダを有する多気筒内燃機関と、前記前
向きシリンダの上側に設けられて絞り弁とこれを作動さ
せる作動軸を有するダウンドラフト型気化器と、前記上
向きシリンダの後側に設けられて絞り弁とこれを作動さ
せる作動軸を有するサイドドラフト型気化器を備え、前
記各絞り弁を前記ハンドルバーに設けられた操作子によ
り同調して開閉する自動二輪車における多気筒内燃機関
において、前記操作子の回動を前記前向きシリンダの気
化器の作動軸に伝達するコントロールケーブルと、前記
前向きシリンダの気化器の作動軸に連結されてその回動
を電気的変位信号に変換するトランスジューサと、前記
フレームに取り付けられ前記電気的変位信号を受けてこ
れに対応する電気的駆動信号を発生するコントロールユ
ニットと、前記上向きシリンダの気化器の作動軸に連結
され前記電気的駆動信号を受けて同気化器の絞り弁を前
記前向きシリンダの気化器の絞り弁の開度と同一開度ま
で変位させるサーボモータを備えたことを特徴とする自
動二輪車における多気筒内燃機関の吸気絞り弁の同調開
閉装置。1. A frame, the front portion of which is supported by a front fork and a front wheel having a handlebar provided on an upper portion thereof, a frontward-facing cylinder mounted on the frame and disposed below the handlebar, and a rearward portion of the frontward-facing cylinder. A multi-cylinder internal combustion engine having an upward cylinder arranged therein, a downdraft carburetor having an throttle shaft and an operation shaft for operating the throttle valve provided above the forward cylinder, and provided at the rear side of the upward cylinder. A multi-cylinder internal combustion engine in a motorcycle that includes a side draft type carburetor having a throttle valve and an operating shaft for operating the throttle valve, and opens and closes each throttle valve in synchronization with an operator provided on the handlebar, A control cable for transmitting the rotation of the operator to the operation shaft of the carburetor of the forward facing cylinder; A transducer that is connected to an actuating shaft of the rectifier and converts its rotation into an electric displacement signal; and a control unit that is attached to the frame and receives the electric displacement signal to generate an electric drive signal corresponding to the electric displacement signal. A servomotor connected to the operating shaft of the carburetor of the upward cylinder to receive the electric drive signal and displace the throttle valve of the carburetor to the same opening as the throttle valve opening of the carburetor of the forward cylinder. A synchronous opening / closing device for an intake throttle valve of a multi-cylinder internal combustion engine in a motorcycle, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59031058A JPH0629578B2 (en) | 1984-02-21 | 1984-02-21 | Synchronous opening / closing device for intake throttle valve of multi-cylinder internal combustion engine in motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59031058A JPH0629578B2 (en) | 1984-02-21 | 1984-02-21 | Synchronous opening / closing device for intake throttle valve of multi-cylinder internal combustion engine in motorcycle |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3045681A Division JPH0633061B2 (en) | 1991-02-20 | 1991-02-20 | Multi-cylinder internal combustion engine for motorcycles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60175740A JPS60175740A (en) | 1985-09-09 |
| JPH0629578B2 true JPH0629578B2 (en) | 1994-04-20 |
Family
ID=12320877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59031058A Expired - Lifetime JPH0629578B2 (en) | 1984-02-21 | 1984-02-21 | Synchronous opening / closing device for intake throttle valve of multi-cylinder internal combustion engine in motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0629578B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009184578A (en) * | 2008-02-07 | 2009-08-20 | Keihin Corp | Engine control device of motorcycle |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1238978B (en) * | 1990-01-24 | 1993-09-17 | Ducati En | COMBUSTION INTERNAL COMBUSTION ENGINE WITH CANDLE IGNITION DEVICES AND INTAKE SYSTEM WITH CONTROL VALVE COMBUSTION ADMISSION OF THE ELECTRONIC OPERATION TYPE |
| JP4732119B2 (en) * | 2005-10-18 | 2011-07-27 | 本田技研工業株式会社 | Intake control device for saddle-ride type vehicles |
| JP4537933B2 (en) * | 2005-10-18 | 2010-09-08 | 本田技研工業株式会社 | Intake control device |
| JP2007198362A (en) * | 2006-01-30 | 2007-08-09 | Honda Motor Co Ltd | Throttle control device for engine |
| JP4778871B2 (en) * | 2006-09-29 | 2011-09-21 | 本田技研工業株式会社 | Intake control device for internal combustion engine for vehicle |
| JP5494401B2 (en) * | 2010-10-04 | 2014-05-14 | スズキ株式会社 | Accelerator position sensor arrangement structure for vehicles |
| JP5874527B2 (en) * | 2012-05-15 | 2016-03-02 | スズキ株式会社 | Intake control device for motorcycle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS618422Y2 (en) * | 1979-09-14 | 1986-03-15 | ||
| JPS5870434U (en) * | 1981-11-04 | 1983-05-13 | いすゞ自動車株式会社 | accelerator control device |
-
1984
- 1984-02-21 JP JP59031058A patent/JPH0629578B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009184578A (en) * | 2008-02-07 | 2009-08-20 | Keihin Corp | Engine control device of motorcycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60175740A (en) | 1985-09-09 |
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