JP2009236098A - Suction device of v-type engine - Google Patents

Suction device of v-type engine Download PDF

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JP2009236098A
JP2009236098A JP2008086857A JP2008086857A JP2009236098A JP 2009236098 A JP2009236098 A JP 2009236098A JP 2008086857 A JP2008086857 A JP 2008086857A JP 2008086857 A JP2008086857 A JP 2008086857A JP 2009236098 A JP2009236098 A JP 2009236098A
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throttle
type engine
intake
valve
bodies
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Naoto Yamagishi
尚登 山岸
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction device of a V-type engine, which is compact and has a small number of components. <P>SOLUTION: First/second throttle bodies T1, T2 arranged between first/second banks B1, B2 of the V-type engine E are arranged offset corresponding to an offset e along the axis of a crankshaft 1 of the first/second banks B1, B2 to each other. A throttle drum 12 connected with throttle operation wires 13, 14 is fixed to one of two valve shafts 6a, 6a arranged in parallel with each other of throttle valves 6, 6 of the first and second throttle bodies T1, T2, and an interlocking mechanism 15 is provided between the valve shafts 6a, 6a for interlocking these shafts. In the suction device of the V-type engine, the throttle drum 12 and the interlocking mechanism 15 having the throttle drum 12 as one element are arranged between the first and second throttle bodies T1, T2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は，Ｖ型エンジンの第１及び第２バンク間に，吸気道及びそれを開閉するスロットル弁を有する第１及び第２スロットルボディを配設し，これら第１及び第２スロットルボディを，第１及び第２バンク相互のクランク軸の軸線に沿うオフセットに対応してオフセット配置し，これら第１及び第２スロットルボディのスロットル弁の互いに平行に配置される二本の弁軸の一方に，スロットル操作ワイヤが接続されるスロットルドラムを固着すると共に，この両弁軸間に，これらを互いに連動させる連動機構を設けた，Ｖ型エンジンの吸気装置の改良に関する。   According to the present invention, first and second throttle bodies having an intake passage and a throttle valve for opening and closing the intake passage are disposed between first and second banks of a V-type engine. An offset arrangement corresponding to an offset along the axis of the crankshaft between the first and second banks, and one of the two valve shafts arranged parallel to each other of the throttle valves of the first and second throttle bodies, The present invention relates to an improvement in an intake device for a V-type engine, in which a throttle drum to which a throttle operation wire is connected is fixed, and an interlocking mechanism is provided between the two valve shafts to link them together.

かゝるＶ型エンジンの吸気装置は，下記特許文献１に開示されるように既に知られている。
特開昭６１−５４９３４号公報 Such an intake device for a V-type engine is already known as disclosed in Patent Document 1 below.
JP-A 61-54934

従来のＶ型エンジンの吸気装置では，上記特許文献１に開示されるように，第１及び第１スロットルボディの一方のスロットル弁の弁軸の外端にスロットルドラムを固着し，このスロットルドラムと反対側で両スロットルボディのスロットル弁の弁軸間を連動機構により連結していたので，スロットルドラムと連動機構とが，一方のスロットルボディの両側に配設されることになり，吸気装置のコンパクト化を妨げるのみならず，部品点数を多く必要していた。   In a conventional V-type engine intake device, as disclosed in Patent Document 1, a throttle drum is fixed to the outer end of the valve shaft of one throttle valve of the first and first throttle bodies. Since the valve shafts of the throttle valves of both throttle bodies are connected by the interlocking mechanism on the opposite side, the throttle drum and the interlocking mechanism are arranged on both sides of one throttle body, and the intake device compact In addition to hindering realization, a large number of parts were required.

本発明は，かゝる事情に鑑みてなされたもので，コンパクトであり，しかも部品点数が少ない，Ｖ型エンジンの吸気装置を提供することを目的とする。   The present invention has been made in view of such circumstances, and an object thereof is to provide an intake device for a V-type engine that is compact and has a small number of parts.

上記目的を達成するために，本発明は，Ｖ型エンジンの第１及び第２バンク間に，吸気道及びそれを開閉するスロットル弁を有する第１及び第２スロットルボディを配設し，これら第１及び第２スロットルボディを，第１及び第２バンク相互のクランク軸の軸線に沿うオフセットに対応してオフセット配置し，これら第１及び第２スロットルボディのスロットル弁の互いに平行に配置される二本の弁軸の一方に，スロットル操作ワイヤが接続されるスロットルドラムを固着すると共に，この両弁軸間に，これらを互いに連動させる連動機構を設けた，Ｖ型エンジンの吸気装置において，第１及び第２スロットルボディ間に，前記スロットルドラムと，このスロットルドラムを一構成要素とする前記連動機構とを配設したことを第１の特徴とする。   In order to achieve the above object, according to the present invention, first and second throttle bodies having an intake passage and a throttle valve for opening and closing the intake passage are disposed between first and second banks of a V-type engine. The first and second throttle bodies are offset to correspond to the offset along the axis of the crankshaft between the first and second banks, and the throttle valves of the first and second throttle bodies are arranged in parallel with each other. In a V-type engine intake system, a throttle drum, to which a throttle operation wire is connected, is fixed to one of the valve shafts, and an interlocking mechanism is provided between the valve shafts to link them together. The first feature is that the throttle drum and the interlocking mechanism having the throttle drum as one component are disposed between the second throttle body and the second throttle body. .

また本発明は，第１の特徴に加えて，第１及び第２スロットルボディを，それらの吸気道の軸線が弁軸の軸方向から見た側面視で交差し，且つこれら軸線の交点が弁軸より吸気道の入口側にくるように配置し，これら第１及び第２スロットルボディの弁軸より吸気道の出口側に前記連動機構を配置したことを第２の特徴とする。   According to the present invention, in addition to the first feature, the first and second throttle bodies intersect the axis of the intake passage in a side view as viewed from the axial direction of the valve shaft, and the intersection of these axes is the valve The second feature is that the mechanism is arranged so as to be closer to the inlet side of the intake passage than the shaft, and the interlocking mechanism is arranged closer to the outlet side of the intake passage than the valve shafts of the first and second throttle bodies.

さらに本発明は，第２の特徴に加えて，第１及び第２スロットルボディの一方の一側に，それらの吸気道に供給するアイドル用空気量を制御するアイドルコントロール弁を，これが前記側面視で前記交点より弁軸側に延びる前記２本の軸線間に収まるように弁軸と平行に取り付けたことを第３の特徴とする。   Furthermore, the present invention provides, in addition to the second feature, an idle control valve for controlling the amount of idle air supplied to the intake passage on one side of the first and second throttle bodies. The third feature is that the mounting is made in parallel with the valve shaft so as to fit between the two axes extending from the intersection to the valve shaft side.

さらにまた本発明は，第２又は第４の特徴の加えて，各スロットルボディには燃料噴射弁を，これが各スロットルボディと対応するバンクとの間に画成されるＶ字状スペースに収まるように装着したことを第４の特徴とする。   Furthermore, in addition to the second or fourth feature of the present invention, a fuel injection valve is provided in each throttle body so that it can be accommodated in a V-shaped space defined between each throttle body and the corresponding bank. It is the fourth feature that it is attached to.

さらにまた本発明は，第３の特徴に加えて，第１及び第２スロットルボディに，これらを相互に連結してスロットルボディ組立体を構成するための連結腕をそれぞれ一体に形成し，これら連結腕に，前記アイドルコントロール弁により制御されたアイドル用空気を第１及び第２スロットルボディの吸気道に供給するアイドル空気路を設けたことを第５の特徴とする。   Furthermore, in addition to the third feature of the present invention, the first and second throttle bodies are integrally formed with connecting arms for connecting the two to each other to form a throttle body assembly. A fifth feature is that the arm is provided with an idle air passage for supplying idle air controlled by the idle control valve to the intake passages of the first and second throttle bodies.

本発明の第１の特徴によれば，スロットルドラムを含む連動機構は第１及び第２スロットルボディ間に収められることになり，吸気装置のコンパクト化に寄与すると共に，部品点数を削減してコストの低減にも寄与することができる。   According to the first feature of the present invention, the interlocking mechanism including the throttle drum is housed between the first and second throttle bodies, which contributes to downsizing of the intake device and reduces the number of parts and costs. It can also contribute to the reduction of.

本発明の第２の特徴によれば，第１及び第２スロットルボディ間の，弁軸より吸気道の出口側のデッドスペースを，連動機構の設置に有効利用することができ，吸気装置の更なるコンパクト化に寄与し得る。   According to the second feature of the present invention, the dead space between the first and second throttle bodies on the outlet side of the intake passage from the valve shaft can be effectively used for the installation of the interlocking mechanism. It can contribute to downsizing.

本発明の第３の特徴によれば，一方のスロットルボディの下側面と，他方のスロットルボディの内側面とに挟まれるデッドスペースを，アイドルコントロール弁の設置に有効利用することができ，吸気装置のコンパクト化を図ることができる。   According to the third feature of the present invention, the dead space sandwiched between the lower surface of one throttle body and the inner surface of the other throttle body can be effectively used for installing the idle control valve. Can be made compact.

本発明の第４の特徴によれば，各スロットルボディと対応するバンクとの間に画成されるＶ字状スペースを，燃料噴射弁の設置に有効利用することができ，吸気装置のコンパクト化に寄与し得る。   According to the fourth aspect of the present invention, the V-shaped space defined between each throttle body and the corresponding bank can be effectively used for installing the fuel injection valve, and the intake device can be made compact. Can contribute.

本発明の第５の特徴によれば，連結腕がアイドル空気供給用の管路を兼ねることになるから，アイドル空気供給用の特別な配管が不要となり，吸気装置のコンパクト化と部品点数の削減を図ることができる。   According to the fifth aspect of the present invention, since the connecting arm also serves as a pipe for supplying idle air, no special piping for supplying idle air is required, making the intake device compact and reducing the number of parts. Can be achieved.

以下，本発明の実施の形態を，添付図面に示した好適な実施例に基づいて説明する。   Hereinafter, embodiments of the present invention will be described based on preferred examples shown in the accompanying drawings.

図１は本発明の吸気装置を備える自動二輪車のＶ型エンジンの要部側面図，図２は図１中の吸気装置の拡大平面図，図３は図２の３矢視図，図４は図２の４矢視図，図５は図２５矢視図，図６は図５の６矢視図，図７は図２の７−７線断面図，図８は図２の８−８線断面図である。   FIG. 1 is a side view of an essential part of a V-type engine of a motorcycle equipped with an intake device of the present invention, FIG. 2 is an enlarged plan view of the intake device in FIG. 1, FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2 is a view taken from the direction of the arrow 7 in FIG. 2, FIG. 5 is a view taken from the direction of the arrow 7-7 in FIG. It is line sectional drawing.

先ず，図１において，自動二輪車の車体フレームＦに搭載されるＶ型エンジンＥは，車体前側の第１バンクＢ１及び車体後側の第２バンクＢ２を備えており，これら第１及び第２バンクＢ１，Ｂ２は，それらのシリンダ軸線Ｃ１，Ｃ２が，自動二輪車の車幅方向に水平に配置されるクランク軸１を中心にしてＶ字状に開くように配置される。   First, in FIG. 1, a V-type engine E mounted on a body frame F of a motorcycle includes a first bank B1 on the front side of the vehicle body and a second bank B2 on the rear side of the vehicle body, and these first and second banks. B1 and B2 are arranged such that their cylinder axes C1 and C2 open in a V shape around the crankshaft 1 arranged horizontally in the vehicle width direction of the motorcycle.

上記第１及び第２バンクＢ１，Ｂ２間には，それらの吸気ポート開口部２，２に接続される第１及び第２スロットルボディＴ１，Ｔ２を相互に結合してなるスロットルボディ組立体ＴＡが配設され，その上方には，第１及び第２スロットルボディＴ１，Ｔ２の吸入空気を濾過する共通のエアクリーナ３が配設される。   Between the first and second banks B1 and B2, there is a throttle body assembly TA formed by coupling the first and second throttle bodies T1 and T2 connected to the intake port openings 2 and 2 to each other. A common air cleaner 3 for filtering the intake air of the first and second throttle bodies T1, T2 is disposed above the common air cleaner 3.

図２に示すように，第１及び第２スロットルボディＴ１，Ｔ２は，平面視でクランク軸１の軸線方向に相互に一定距離ｅオフセットして配置される。そのオフセット距離ｅは，第１及び第２バンクＢ１，Ｂ２のシリンダ軸線Ｃ１，Ｃ２がクランク軸１の軸線方向に相互にオフセットした距離に対応する。   As shown in FIG. 2, the first and second throttle bodies T1, T2 are arranged with a certain distance e offset from each other in the axial direction of the crankshaft 1 in plan view. The offset distance e corresponds to a distance in which the cylinder axes C1 and C2 of the first and second banks B1 and B2 are offset from each other in the axial direction of the crankshaft 1.

図３において，第１及び第２スロットルボディＴ１，Ｔ２は，吸気方向を下向きにする吸気道５，５と，これら吸気道５，５を開閉するスロットル弁６，６を備えており，これらスロットル弁６，６の弁軸６ａ，６ａは，ＶエンジンＥのクランク軸１と略平行にして対応するスロットルボディＴ１，Ｔ２に回転自在に支持される。   In FIG. 3, the first and second throttle bodies T1, T2 are provided with intake passages 5, 5 that make the intake direction downward, and throttle valves 6, 6 that open and close these intake passages 5, 5. The valve shafts 6a and 6a of the valves 6 and 6 are rotatably supported by corresponding throttle bodies T1 and T2 so as to be substantially parallel to the crankshaft 1 of the V engine E.

また図３及び図４において，第１及び第２スロットルボディＴ１，Ｔ２は，弁軸６ａ，６ａの軸方向から見た側面視で，それぞれの吸気道５，５の軸線Ｙ１，Ｙ２が弁軸６ａ，６ａの上方で交差するように配置される。それら軸線Ｙ１，Ｙ２の交点は符号Ｐで示される。   3 and 4, the first and second throttle bodies T1 and T2 are viewed from the axial direction of the valve shafts 6a and 6a, and the axis lines Y1 and Y2 of the intake passages 5 and 5 are the valve shafts. It arrange | positions so that it may cross | intersect 6a and 6a. The intersection of these axes Y1, Y2 is indicated by the symbol P.

図２，図３，図５及び図６に示すように，第１及び第２スロットルボディＴ１，Ｔ２は，スロットルボディ組立体ＴＡを構成すべく，連結板７及び連結腕８１，８２を介して相互に連結される。即ち，第１及び第２スロットルボディＴ１，Ｔ２の上部の対向面には，弁軸６ａ，６ａと平行に突出する連結ボス９１，９２が一体に形成されており，これら連結ボス９１，９２に前記連結板７の両端が一対のボルト１０，１０により固着される。また第１及び第２スロットルボディＴ１，Ｔ２の下部の対向面には，それぞれＬ字状に屈曲して先端面を互いに当接させる連結腕８１，８２が一体に形成されており，これら連結腕８１，８２が一本のボルト１１により相互に連結される。   As shown in FIGS. 2, 3, 5 and 6, the first and second throttle bodies T1, T2 are connected via a connecting plate 7 and connecting arms 81, 82 to form a throttle body assembly TA. Connected to each other. That is, connecting bosses 91 and 92 projecting in parallel with the valve shafts 6a and 6a are integrally formed on the upper opposing surfaces of the first and second throttle bodies T1 and T2. Both ends of the connecting plate 7 are fixed by a pair of bolts 10 and 10. Further, connecting arms 81 and 82 are integrally formed on the opposing surfaces of the lower portions of the first and second throttle bodies T1 and T2 so as to be bent in an L shape and abut the tip surfaces thereof. 81 and 82 are connected to each other by a single bolt 11.

図２及び図８において，第１及び第２スロットルボディＴ１，Ｔ２の一方の弁軸６ａ（図示例では第２スロットルボディＴ２側の弁軸６ａ）の内端にはスロットルドラム１２が固着され，その外端には，第２スロットルボディＴ２の外側面に取り付けられるスロットルセンサ２０の回転子が連結される。スロットルドラム１２には開き操作用ワイヤ１３及び閉じ操作用ワイヤ１４が接続され，これらワイヤを，自動二輪車のアクセルグリップの往復回動により交互に牽引することでスロットルドラム１２をスロットル弁６の開閉方向に回動することができる。スロットルセンサ２０は，スロットル弁６の開度を検出するものである。   2 and 8, a throttle drum 12 is fixed to the inner end of one of the valve shafts 6a of the first and second throttle bodies T1, T2 (the valve shaft 6a on the second throttle body T2 side in the illustrated example) A rotor of a throttle sensor 20 attached to the outer surface of the second throttle body T2 is connected to the outer end. An opening operation wire 13 and a closing operation wire 14 are connected to the throttle drum 12, and these wires are alternately pulled by reciprocating rotation of an accelerator grip of a motorcycle, whereby the throttle drum 12 is opened and closed in the opening / closing direction of the throttle valve 6. Can be rotated. The throttle sensor 20 detects the opening degree of the throttle valve 6.

上記スロットルドラム１２の回動は，連動機構１５を介して他方の弁軸６ａ（図示例では第１スロットルボディＴ１側の弁軸６ａ）に伝達される。この連動機構は，他方の弁軸６ａに回転自在に支持される第１スロットルレバー１６と，この第１スロットルレバー１６に隣接して同弁軸６ａに固着される第２スロットルレバー１７と，スロットルドラム１２及び第１スロットルレバー１６間を連結するリンク１８と，第１及び第２スロットルレバー１６，１７間を連結すると共に両スロットルレバー１６，１７相互の位相を調節する同調ねじ１９とで構成される。スロットルドラム１２及びリンク１８間では，スロットルドラム１２の外周から突出したアーム１２ａとリンク１８の一端部とが第１ピボット２５で相対回転自在に連結され，リンク１８及び第１スロットルレバー１６間では，第１スロットルレバー１６の先端部とリンク１８の他端部とが第２ピボット２６を介して相対回転自在に連結される。而して，第１及び第２スロットルレバー１６，１７相互の位相調節により，第１及び第２スロットルボディＴ１，Ｔ２のスロットル弁６，６相互の同調を図ることができる。   The rotation of the throttle drum 12 is transmitted to the other valve shaft 6a (the valve shaft 6a on the first throttle body T1 side in the illustrated example) via the interlocking mechanism 15. This interlocking mechanism includes a first throttle lever 16 rotatably supported on the other valve shaft 6a, a second throttle lever 17 fixed to the valve shaft 6a adjacent to the first throttle lever 16, and a throttle. A link 18 that connects the drum 12 and the first throttle lever 16 and a tuning screw 19 that connects the first and second throttle levers 16 and 17 and adjusts the phase between the throttle levers 16 and 17 are configured. The Between the throttle drum 12 and the link 18, the arm 12 a protruding from the outer periphery of the throttle drum 12 and one end of the link 18 are connected to each other by a first pivot 25, and between the link 18 and the first throttle lever 16, The distal end portion of the first throttle lever 16 and the other end portion of the link 18 are connected to each other via a second pivot 26 so as to be relatively rotatable. Thus, the mutual adjustment of the phases of the first and second throttle levers 16 and 17 allows the throttle valves 6 and 6 of the first and second throttle bodies T1 and T2 to be synchronized with each other.

こうして，連動機構１５は，その一要素としてスロットルドラム１２を取り込んで構成される。また連動機構１５の特にリンク１８は，前記側面視で第１及び第２スロットルボディＴ１，Ｔ２の吸気道５，５の互いに交差する軸線Ｙ１，Ｙ２の交点Ｐの下方位置を占める弁軸６ａ，６ａよりも下方に，即ち吸気道５，５の出口側にくるように配置される。   Thus, the interlocking mechanism 15 is configured by taking in the throttle drum 12 as one element. In particular, the link 18 of the interlocking mechanism 15 has a valve shaft 6a occupying a position below an intersection P of the axis lines Y1 and Y2 of the intake passages 5 and 5 of the first and second throttle bodies T1 and T2 in the side view. It arrange | positions so that it may come below 6a, ie, the exit side of the intake passages 5 and 5. FIG.

また図４〜図６に示すように，第１及び第２スロットルボディＴ１，Ｔ２の，相互にボルト結合される前記連結腕８１，８２には，各吸気道５，５の下流側にアイドル用空気を供給するアイドル空気路２１が形成され，このアイドル空気路２１の開度を調節するピストン式のアイドルコントロール弁２２が第１及び第２スロットルボディＴ１，Ｔ２の一方（図示例では第２スロットルボディＴ２）の下側壁に取り付けられる。その際，このアイドルコントロール弁２２は，前記側面視で前記交点Ｐより弁軸６ａ，６ａ側に延びる前記２本の軸線Ｙ１，Ｙ２間に収まるように弁軸６ａ，６ａと平行に配置される。   As shown in FIGS. 4 to 6, the connecting arms 81 and 82 of the first and second throttle bodies T1 and T2 that are bolted to each other are connected to the downstream side of the intake passages 5 and 5 for idle use. An idle air passage 21 for supplying air is formed, and a piston-type idle control valve 22 for adjusting the opening degree of the idle air passage 21 is one of the first and second throttle bodies T1 and T2 (in the illustrated example, the second throttle passage). It is attached to the lower wall of the body T2). At this time, the idle control valve 22 is disposed in parallel with the valve shafts 6a and 6a so as to be accommodated between the two axis lines Y1 and Y2 extending from the intersection point P toward the valve shafts 6a and 6a in the side view. .

図２，図３及び図７において，第１及び第２スロットルボディＴ１，Ｔ２には，各対応する吸気道５，５の下流側に向けて燃料を噴射する電磁式の第１及び第２燃料噴射弁Ｉ１，Ｉ２が装着される。その際，各燃料噴射弁Ｉ１，Ｉ２は，第１及び第２スロットルボディＴ１，Ｔ２と，第１及び第２バンクＢ１，Ｂ２との各間に画成されるＶ字状スペース２３に配置される。   2, 3 and 7, electromagnetic first and second fuels for injecting fuel to the first and second throttle bodies T1 and T2 toward the downstream side of the corresponding intake passages 5 and 5, respectively. Injection valves I1 and I2 are mounted. At that time, the fuel injection valves I1 and I2 are arranged in a V-shaped space 23 defined between the first and second throttle bodies T1 and T2 and the first and second banks B1 and B2. The

次に，この実施例の作用について説明する。   Next, the operation of this embodiment will be described.

上記のように，Ｖ型エンジンＥの第１及び第２バンクＢ１，Ｂ２間に接続される第１及び第２スロットルボディＴ１，Ｔ２は，弁軸６ａ，６ａの軸方向から見た側面視で吸気道５，５の軸線Ｙ１，Ｙ２が交差するように配置され，第１及び第２スロットルボディＴ１，Ｔ２間に，それらのスロットル弁６，６の互いに平行する二本の弁軸６ａ，６ａ間を連結する連動機構１５が配設され，しかもこの連動機構１５は，前述のようにその一要素として，一方の弁軸６ａに固着されるスロットルドラム１２を取り込んで構成されるので，スロットルドラム１２を含む連動機構１５は第１及び第２スロットルボディＴ１，Ｔ２間に収められることになり，吸気装置のコンパクト化に寄与すると共に，部品点数が減少し，コストの低減にも寄与することができる。   As described above, the first and second throttle bodies T1 and T2 connected between the first and second banks B1 and B2 of the V-type engine E are viewed from the side as viewed from the axial direction of the valve shafts 6a and 6a. Two valve shafts 6a and 6a of the throttle valves 6 and 6 are arranged parallel to each other between the first and second throttle bodies T1 and T2 and arranged so that the axes Y1 and Y2 of the intake passages 5 and 5 intersect each other. As described above, the interlocking mechanism 15 is configured to take in the throttle drum 12 fixed to the one valve shaft 6a as one element. The interlocking mechanism 15 including 12 is housed between the first and second throttle bodies T1 and T2, which contributes to downsizing of the intake device and reduces the number of parts and contributes to cost reduction. Can.

また上記連動機構１５のリンク１８は，前述のように，第１及び第２スロットルボディＴ１，Ｔ２の吸気道５，５の互いに交差する軸線Ｙ１，Ｙ２の交点Ｐの下方位置を占める弁軸６ａ，６ａより下方に，即ち吸気道５，５の出口側にくるように配置されるので，第１及び第２スロットルボディＴ１，Ｔ２間の，弁軸６ａ，６ａ下方のデッドスペースを，連動機構１５の設置に有効利用することができ，吸気装置の更なるコンパクト化に寄与し得る。   As described above, the link 18 of the interlock mechanism 15 includes the valve shaft 6a that occupies a position below the intersection point P of the axis lines Y1 and Y2 that intersect the intake passages 5 and 5 of the first and second throttle bodies T1 and T2. , 6a, that is, to be located on the outlet side of the intake passages 5, 5, the dead space below the valve shafts 6a, 6a between the first and second throttle bodies T1, T2 is provided with an interlocking mechanism. 15 can be effectively used for installation, and can contribute to further downsizing of the intake device.

さらに第１及び第２スロットルボディＴ１，Ｔ２の一方（図示例では第２スロットルボディＴ２）の下側には，それらの吸気道５，５に供給するアイドル用空気量を制御するアイドルコントロール弁２２が，前記側面視で前記交点Ｐより弁軸６ａ，６ａ側に延びる前記２本の軸線Ｙ１，Ｙ２間に収まるように弁軸６ａ，６ａと平行に取り付けられるので，第２スロットルボディＴ２の下側面と，第１スロットルボディＴ１の内側面とに挟まれるデッドスペースを，アイドルコントロール弁２２の設置に有効利用することができ，吸気装置のコンパクト化を図ることができる。   Further, an idle control valve 22 for controlling the amount of idle air supplied to the intake passages 5, 5 is provided below one of the first and second throttle bodies T1, T2 (second throttle body T2 in the illustrated example). Is mounted in parallel with the valve shafts 6a and 6a so as to be accommodated between the two axes Y1 and Y2 extending from the intersection P to the valve shafts 6a and 6a in the side view. A dead space sandwiched between the side surface and the inner surface of the first throttle body T1 can be effectively used for installing the idle control valve 22, and the intake device can be made compact.

また第１及び第２スロットルボディＴ１，Ｔ２を相互に連結してスロットルボディ組立体ＴＡを構成するために，第１及び第２スロットルボディＴ１，Ｔ２に一体に形成される連結腕８１，８２には，前記アイドルコントロール弁２２により制御されたアイドル用空気を，第１及び第２スロットルボディＴ１，Ｔ２の吸気道５，５に供給するアイドル空気路２１が設けられるので，連結腕８１，８２がアイドル空気供給用の管路を兼ねることになり，アイドル空気供給用の特別な配管が不要となり，吸気装置のコンパクト化と部品点数の削減を図ることができる。   Further, in order to connect the first and second throttle bodies T1 and T2 to each other to form the throttle body assembly TA, the connecting arms 81 and 82 formed integrally with the first and second throttle bodies T1 and T2 are provided. Is provided with an idle air passage 21 for supplying idle air controlled by the idle control valve 22 to the intake passages 5 and 5 of the first and second throttle bodies T1 and T2. It also serves as a pipeline for idle air supply, and no special piping for idle air supply is required, so the intake device can be made compact and the number of parts can be reduced.

さらに第１及び第２スロットルボディＴ１，Ｔ２に装着される燃料噴射弁Ｉ１，Ｉ２は，各スロットルボディＴ１，Ｔ２と対応するバンクＢ１，Ｂ２との間に画成されるＶ字状スペース２３に収まるように配置されるので，各スロットルボディＴ１，Ｔ２と対応するバンクＢ１，Ｂ２との間に画成されるＶ字状スペース２３を，燃料噴射弁Ｉ１，Ｉ２の設置に有効利用することができ，これによっても吸気装置のコンパクト化を図ることができる。   Further, the fuel injection valves I1 and I2 mounted on the first and second throttle bodies T1 and T2 are formed in a V-shaped space 23 defined between the throttle bodies T1 and T2 and the corresponding banks B1 and B2. Since they are arranged so as to be accommodated, it is possible to effectively use the V-shaped space 23 defined between the throttle bodies T1, T2 and the corresponding banks B1, B2 for the installation of the fuel injection valves I1, I2. This also makes it possible to reduce the size of the intake device.

以上，本発明の実施例を説明したが，本発明は上記実施例に限定されるものではなく，本発明の要旨を逸脱しない範囲で種々の設計変更を行うことができる。   As mentioned above, although the Example of this invention was described, this invention is not limited to the said Example, A various design change can be performed in the range which does not deviate from the summary of this invention.

本発明の吸気装置を備える自動二輪車のＶ型エンジンの要部側面図。The principal part side view of the V-type engine of a motorcycle provided with the intake device of this invention. 図１中の吸気装置の拡大平面図。FIG. 2 is an enlarged plan view of the intake device in FIG. 1. 図２の３矢視図。FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2. 図２の４矢視図。FIG. 4 is a view taken in the direction of arrow 4 in FIG. 2. 図２の５矢視図。FIG. 5 is a view taken in the direction of arrow 5 in FIG. 2. 図５の６矢視図。FIG. 6 is a view taken in the direction of arrow 6 in FIG. 5. 図２の７−７線断面図。FIG. 7 is a sectional view taken along line 7-7 in FIG. 図２の８−８線断面図。FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 2.

符号の説明Explanation of symbols

Ｅ・・・・・・・Ｖ型エンジン
Ｂ１，Ｂ２・・・第１，第２バンク
Ｉ１，Ｉ２・・・第１，第２燃料噴射弁
Ｐ・・・・・・・吸気道軸線Ｙ１，Ｙ２の交点
Ｔ１，Ｔ２・・・第１，第２スロットルボディ
Ｙ１，Ｙ２・・・第１，第２スロットルボディの吸気道軸線
１・・・・・・・クランク軸
５・・・・・・・吸気道
６・・・・・・・スロットル弁
６ａ・・・・・・弁軸
８１，８２・・・連結腕
１２・・・・・・スロットルドラム
１３，１４・・・スロットル操作ワイヤ
１５・・・・・・連動機構
２１・・・・・・アイドル空気路
２２・・・・・・アイドルコントロール弁
２３・・・・・・スペース E .... V-type engine B1, B2 ... First and second banks I1, I2 ... First and second fuel injection valves P ... Intake channel axis Y1, Y2 intersections T1, T2 ... 1st, 2nd throttle body Y1, Y2 ... 1st and 2nd throttle body intake passage axis 1 ... crankshaft 5 ...・ Intake passage 6 ・ ・ ・ ・ ・ ・ Throttle valve 6a ・ ・ ・ ・ ・ ・ Valve shaft 81,82 ・ ・ ・ Connecting arm 12 ・ ・ ・ ・ ・ ・ Throttle drum 13,14 ... Throttle operating wire 15 ・... Interlocking mechanism 21 ... Idle air passage 22 ... Idle control valve 23 ... Space

Claims (5)

Ｖ型エンジン（Ｅ）の第１及び第２バンク（Ｂ１，Ｂ２）間に，吸気道（５）及びそれを開閉するスロットル弁（６ａ）を有する第１及び第２スロットルボディ（Ｔ１，Ｔ２）を配設し，これら第１及び第２スロットルボディ（Ｔ１，Ｔ２）を，第１及び第２バンク（Ｂ１，Ｂ２）相互のクランク軸（１）の軸線に沿うオフセット（ｅ）に対応してオフセット配置し，これら第１及び第２スロットルボディ（Ｔ１，Ｔ２）のスロットル弁（６，６）の互いに平行に配置される二本の弁軸（６ａ，６ａ）の一方に，スロットル操作ワイヤ（１３，１４）が接続されるスロットルドラム（１２）を固着すると共に，この両弁軸（６ａ，６ａ）間に，これらを互いに連動させる連動機構（１５）を設けた，Ｖ型エンジンの吸気装置において，
第１及び第２スロットルボディ（Ｔ１，Ｔ２）間に，前記スロットルドラム（１２）と，このスロットルドラム（１２）を一要素とする前記連動機構（１５）とを配設したことを特徴とする，Ｖ型エンジンの吸気装置。 First and second throttle bodies (T1, T2) having an intake passage (5) and a throttle valve (6a) for opening and closing the same between the first and second banks (B1, B2) of the V-type engine (E) The first and second throttle bodies (T1, T2) are arranged corresponding to the offset (e) along the axis of the crankshaft (1) between the first and second banks (B1, B2). The throttle operation wire (6a, 6a) is disposed on one of the two valve shafts (6a, 6a) of the first and second throttle bodies (T1, T2) disposed in parallel with each other. 13 and 14), a throttle drum (12) connected thereto, and an interlocking mechanism (15) for interlocking them with each other between the valve shafts (6a, 6a). In
The throttle drum (12) and the interlock mechanism (15) having the throttle drum (12) as one element are disposed between the first and second throttle bodies (T1, T2). , V-type engine intake system. 請求項１記載のＶ型エンジンの吸気装置において，
第１及び第２スロットルボディ（Ｔ１，Ｔ２）を，それらの吸気道（５，５）の軸線（Ｙ１，Ｙ２）が弁軸（６ａ，６ａ）の軸方向から見た側面視で交差し，且つこれら軸線（Ｙ１，Ｙ２）の交点（Ｐ）が弁軸（６ａ，６ａ）より吸気道（５，５）の入口側にくるように配置し，これら第１及び第２スロットルボディ（Ｔ１，Ｔ２）の弁軸（６ａ，６ａ）より吸気道（５，５）の出口側に前記連動機構（１５）を配置したことを特徴とする，Ｖ型エンジンの吸気装置。 The intake device for a V-type engine according to claim 1,
The first and second throttle bodies (T1, T2) intersect their axis lines (Y1, Y2) of the intake passages (5, 5) in a side view as viewed from the axial direction of the valve shafts (6a, 6a), The intersection (P) of these axes (Y1, Y2) is arranged so as to be closer to the inlet side of the intake passage (5, 5) than the valve shaft (6a, 6a), and these first and second throttle bodies (T1, An intake device for a V-type engine, wherein the interlocking mechanism (15) is disposed on the outlet side of the intake passage (5, 5) from the valve shaft (6a, 6a) of T2). 請求項２記載のＶ型エンジンの吸気装置において，
第１及び第２スロットルボディ（Ｔ１，Ｔ２）の一方の一側に，それらの吸気道（５，５）に供給するアイドル用空気量を制御するアイドルコントロール弁（２２）を，これが前記側面視で前記交点（Ｐ）より弁軸（６ａ，６ａ）側に延びる前記２本の軸線（Ｙ１，Ｙ２）間に収まるように弁軸（６ａ，６ａ）と平行に取り付けたことを特徴とする，Ｖ型エンジンの吸気装置。 The intake device for a V-type engine according to claim 2,
An idle control valve (22) for controlling the amount of idle air supplied to the intake passages (5, 5) is provided on one side of one of the first and second throttle bodies (T1, T2). The valve shaft (6a, 6a) is attached parallel to the two axis lines (Y1, Y2) extending from the intersection (P) to the valve shaft (6a, 6a) side, V type engine intake system. 請求項２又は３記載のＶ型エンジンの吸気装置において，
各スロットルボディ（Ｔ１，Ｔ２）には燃料噴射弁（Ｉ１，Ｉ２）を，これが各スロットルボディ（Ｔ１，Ｔ２）と対応するバンク（Ｂ１，Ｂ２）との間に画成されるＶ字状スペース（２３）に収まるように装着したことを特徴とする，Ｖ型エンジンの吸気装置。 The intake device for a V-type engine according to claim 2 or 3,
Each throttle body (T1, T2) has a fuel injection valve (I1, I2), which is a V-shaped space defined between each throttle body (T1, T2) and the corresponding bank (B1, B2). An intake device for a V-type engine, which is mounted so as to fit in (23). 請求項３記載のＶ型エンジンの吸気装置において，
第１及び第２スロットルボディ（Ｔ１，Ｔ２）に，これらを相互に連結してスロットルボディ組立体ＴＡ（ＴＡ）を構成するための連結腕（８１，８２）をそれぞれ一体に形成し，これら連結腕（８１，８２）に，前記アイドルコントロール弁（２２）により制御されたアイドル用空気を第１及び第２スロットルボディ（Ｔ１，Ｔ２）の吸気道（５，５）に供給するアイドル空気路（２１）を設けたことを特徴とする，Ｖ型エンジンの吸気装置。 The intake device for a V-type engine according to claim 3,
The first and second throttle bodies (T1, T2) are connected to each other to integrally form connecting arms (81, 82) for constituting the throttle body assembly TA (TA). Idle air passages for supplying idle air controlled by the idle control valve (22) to the intake passages (5, 5) of the first and second throttle bodies (T1, T2) to the arms (81, 82). 21) An intake device for a V-type engine.
JP2008086857A 2008-03-28 2008-03-28 Suction device of v-type engine Pending JP2009236098A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7501304B2 (en) 2020-10-21 2024-06-18 スズキ株式会社 Saddle type vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7501304B2 (en) 2020-10-21 2024-06-18 スズキ株式会社 Saddle type vehicle

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