1267467 九、發明說明： 【發明所屬之技術領域】 本發明係關於二輪機車的内燃機，特別係關於燃油喷 式内燃機的燃油供應裝置之配置。 【先前技術】 習知的二輪機車用内燃機中，含有燃油幫浦的燃油供 裝置係配置於汽缸體後方且車身中央部處（例如，參照專 文獻1 )。而當屬於多缸引擎的情況時，燃油供應裝置便 置於汽缸體後方且内燃機橫向寬度範圍内（例如，參照專 文獻2 )。 (專利文獻1 )曰本專利特公昭6 3 - 1 2 3 2號公報 (專利文獻2 )日本專利特開2 0 0 0 - 2 3 8 6 8 0號公報 【發明内容】 (發明所欲解決之問題） 習知的二輪機車用内燃機，因為燃油供應裝置配置於 缸體後方且車身中央部或引擎橫向寬度範圍内，因此為 止在行駛時從汽缸體等所散發出的熱直接碰觸到燃油供 裝置，便需要設置遮熱板等。 再者，為將燃油供應裝置與内燃機的位置隔開，便需 從燃油幫浦延伸出的高壓配管。 (解決問題之手段） 為能解決上述習知課題，申請專利範圍第1項所述之 明，係通過二輪機車的車身中心且沿前後方向鉛直面將 缸軸線朝上配置的燃油喷射式内燃機；其中，上述内燃 312XP/發明說明書(補件)/94-10/94120403 射 應 利 配 利 汽 防 應 要 發 汽 機 51267467 IX. Description of the Invention: TECHNICAL FIELD The present invention relates to an internal combustion engine of a two-wheeled motor vehicle, and more particularly to a configuration of a fuel supply device for a fuel injection internal combustion engine. [Prior Art] In a conventional two-engine internal combustion engine, a fuel supply device including a fuel pump is disposed behind the cylinder block and at a central portion of the vehicle body (for example, refer to Document 1). In the case of a multi-cylinder engine, the fuel supply is placed behind the cylinder block and within the lateral width of the internal combustion engine (for example, refer to Document 2). (Patent Document 1) Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. No. 6-3 - No. 2, No. 2, No. 2, No. 2, No. The problem is that the conventional two-engine internal combustion engine is disposed in the rear of the cylinder and in the center of the vehicle body or in the lateral width of the engine. Therefore, the heat radiated from the cylinder block or the like directly hits the fuel during running. For the device, a heat shield or the like needs to be provided. Furthermore, in order to separate the fuel supply device from the position of the internal combustion engine, a high pressure pipe extending from the fuel pump is required. (Means for Solving the Problem) In order to solve the above-mentioned conventional problems, the invention described in claim 1 is a fuel injection type internal combustion engine in which a cylinder axis is arranged upward by a vehicle body center of a two-wheeled vehicle and a vertical surface in a front-rear direction; Among them, the above internal combustion 312XP / invention manual (supplement) / 94-10/94120403 Ying Yingli distribution anti-air engine steam generator 5
1267467 的燃油供應裝置係配置於上述内燃機的汽缸體與汽缸頭 後方且側方處。 其次，申請專利範圍第2項所述之發明，係申請專利 圍第1項所述之發明中，上述内燃機的燃油供應裝置與 氣系裝置係配置於上述汽缸體與汽缸頭後方且分置於左 二側。 再者，申請專利範圍第3項所述之發明，係申請專利 圍第2項所述之發明中，上述進氣系裝置係含有油門本 與燃油喷射閥。 (發明效果） 申請專利範圍第1項所述之發明中，因為燃油供應裝 係配置於内燃機的汽缸體與汽缸頭的後方且側邊處，因 燃油供應裝置便不致受從汽缸體或汽缸頭所散發出熱的 擊，可利用直接觸及行駛所通過的風而進行冷卻。所以 不需要特別的遮熱措施，可使構造趨於簡單。此外，裝 亦較簡潔。此外，因為可有效的活用前後方向空間，因 可將燃油供應裝置靠近汽缸體配置，以省略高壓配管。 其次，在申請專利範圍第2項及申請專利範圍第3項 述之發明中，因為燃油供應裝置與進氣系裝置係配置於 述汽缸體與汽缸頭後方且分開於左右二側，且其進氣系 置含有油門本體與燃油喷射閥，因此油門本體、燃油喷 閥等進氣系裝置與燃油幫浦等燃油供應裝置，將包夾著 身中心面並配置於二側，使内燃機本體週邊的裝配均衡 佳。 312XP/發明說明書(補件)/94-10/94120403 的 範 進 右 範 體 置 此 衝 配 此 所 上 裝 射 車 變 6 1267467 【實施方式】 圖1所示係搭載本發明之内燃機的二輪機車1之一實施 形態側視圖。The fuel supply device of 1267467 is disposed at the rear side of the cylinder block and the cylinder head of the internal combustion engine. The invention of claim 2, wherein the fuel supply device and the gas system of the internal combustion engine are disposed behind the cylinder block and the cylinder head and are placed in the invention. Left two sides. According to the invention of claim 2, in the invention of claim 2, the intake system includes a throttle and a fuel injection valve. (Effect of the Invention) In the invention of claim 1, since the fuel supply system is disposed at the rear and side of the cylinder block and the cylinder head of the internal combustion engine, the fuel supply device is not subjected to the cylinder block or the cylinder head. The blow that emits heat can be cooled by direct contact and the wind passing through. Therefore, no special heat-shielding measures are required, which makes the structure easier. In addition, the installation is also relatively simple. Further, since the space in the front-rear direction can be effectively utilized, the fuel supply device can be disposed close to the cylinder block to omit the high-pressure pipe. Secondly, in the invention of claim 2 and the invention of claim 3, the fuel supply device and the intake system are disposed behind the cylinder block and the cylinder head and are separated from the left and right sides, and the The gas system includes the throttle body and the fuel injection valve. Therefore, the fuel supply device such as the throttle body and the fuel injection valve and the fuel supply device such as the fuel pump will be sandwiched between the center surface and disposed on the two sides to make the periphery of the internal combustion engine body The assembly is well balanced. 312XP / invention manual (supplement) / 94-10/94120403 Fan Jin right body body set this punch with this loading car change 6 1267467 [Embodiment] Figure 1 is a two-wheeled vehicle equipped with the internal combustion engine of the present invention A side view of one embodiment.
在此二輪機車1中，經由主車架2前端的頭管3，方向 操作自如的支撐著前叉4，在此前叉4下端將旋轉自如的 支撐著前輪5。從主車架2前端朝後下方延伸出下方車架 6，從此下方車架6下端起朝後方延伸出底盤車架7。然後， 底盤車架7後端的支架7 a係分別利用中間車架8與後車架 9，連結於上述主車架2的中央部與後部。 在主車架2上的前部搭載著油箱10，並在其後方設置坐 墊1 1。1 2係把手。此外，在支架7 a上，將利用軸1 4樞接 著後叉1 3前端，此後叉1 3係朝後方延伸，並在後端旋轉 自如的支撐著後輪15。在上述主車架2後邊與後叉13後 邊之間，裝設著後緩衝器1 6。 由主車架2、下方車架6及中間車架8所包圍的空間， 沿通過車身中心的前後方向鉛直面（車身中心面），含有汽 缸體1 7 b、汽缸頭1 7 c、缸頭蓋1 7 d及曲軸箱1 7 e的内燃機 本體1 7係將汽缸軸線1 7 a朝上搭載著，並固定於底盤車架 7與支架7a上。本實施形態的内燃機屬於燃油喷射式。所 以，並未設置氣化器，而是設置燃油供應裝置1 9與後述之 燃油噴射閥等。 其次，圖2所示係圖1中的内燃機本體1 7上部及其後 方之放大側視圖，圖3所示係俯視圖，圖4所示係前視圖。 該等圖中，1 a係通過車身中心的前後方向鉛直面（車身 7 312XP/發明說明書(補件)/94-10/94120403 1267467 中心面）。1 7 b係汽缸體，1 7 c係汽缸頭，1 9係含有燃油幫 浦與電動馬達的燃油供應裝置，配置於上述汽缸體 17b、 汽缸頭1 7 c的左後方。 2 1係含有空氣濾淨器的進氣室，經空氣濾淨器潔淨化的 空氣（進氣）將經由錐管2 2，到達配置於汽缸體1 7 b、汽缸 頭1 7 c右後方的進氣系裝置2 3。其中，由燃油供應裝置1 9 所供應的燃油，經油門本體2 5調整流量之後，再利用燃油 喷射閥2 4，喷射至進氣中。依此所生成的燃油•空氣之混 ® 合氣，將經由汽缸頭1 7 c内的進氣口·進氣閥，供應給汽 體 缸 缸 气 、、/ 的 内 置 裝 整 調 力 壓 油 燃 係 7 2 中 圖 外 另 瓶 電 係 9 2 閥 油 斷 的 出 流 油 燃 止 阻 時 倒撐 #支 車 係 輪 ο 3二， 係外 8 匕 2 在 燃 壓 高 應 供 有 設 且 3 2 置 裝 系 氣 進 或 9 11 置 裝 應 供 油 燃 著 座 0¾ 喷 的 路 通 油 &一 JJ 機 輪 二 沿 中 例 施 實 本 線 軸 缸 汽 以 機 燃 内 式 射 面置 心 配 中 式 身方 車立 的縱 1—I 為 喷 油 燃 將 在 別 分 為 因 體 缸 汽 此 於 側 頭 缸 气 與 油 燃 著 置 配 方 後 左 的 置 裝 應 供 置 裝 系 氣 進 著 置 配 方 後 右 在 而 此 因 的 熱 出 發 散 所 7 11 體 本 機 燃 内 從 受 致 不 將 9 ΊΧ 置 裝 應 供 油 燃 所 Ο 卻 冷 其 將 並 擊 接 直 風 之 進 吹 而 駛 行 使 可 是 而 擊 外 此 ο 單 簡 於 趨 造 構 使 可 施 措 熱 遮 的 別 特 要 需 不 以 間 空 向 方 後 前 用 活 的 效 有 可 為 因 且 而 〇 潔 簡 將 亦 配 裝 高 略 省 以 置 配 C 7 1S 頭 缸 汽 近 靠 9 11 置 裝 應 供 油 燃 將 。 可 管 此配 因 壓 312XP/發明說明書(補件)/94-10/94120403 8 1267467In the two-wheeled motor vehicle 1, the front fork 4 is movably supported via the head pipe 3 at the front end of the main frame 2, and the front wheel 5 is rotatably supported at the lower end of the front fork 4. The lower frame 6 extends rearward and downward from the front end of the main frame 2, and the chassis frame 7 extends rearward from the lower end of the lower frame 6. Then, the brackets 7a at the rear end of the chassis frame 7 are coupled to the center portion and the rear portion of the main frame 2 by the intermediate frame 8 and the rear frame 9, respectively. A fuel tank 10 is mounted on the front portion of the main frame 2, and a seat cushion 1 1 is provided at the rear side thereof. Further, on the bracket 7a, the front end of the rear fork 13 is pivotally connected by the shaft 14, and the rear fork 13 is extended rearward, and the rear wheel 15 is rotatably supported at the rear end. A rear bumper 16 is disposed between the rear side of the main frame 2 and the rear side of the rear fork 13. The space surrounded by the main frame 2, the lower frame 6 and the intermediate frame 8 includes a cylinder block 1 7 b, a cylinder head 1 7 c, and a cylinder head cover along a front and rear vertical plane (body center surface) passing through the center of the vehicle body. The internal combustion engine body 17 of the 7 7 d and the crankcase 1 7 e is mounted with the cylinder axis 17 7 upward and is fixed to the chassis frame 7 and the bracket 7a. The internal combustion engine of this embodiment belongs to a fuel injection type. Therefore, instead of providing a gasifier, a fuel supply device 19 and a fuel injection valve and the like which will be described later are provided. Next, Fig. 2 is an enlarged side view showing the upper portion and the rear side of the internal combustion engine body 17 in Fig. 1, and Fig. 3 is a plan view, and Fig. 4 is a front view. In the figures, 1 a passes through the front and rear vertical faces of the center of the body (body 7 312XP / invention manual (supplement) / 94-10/94120403 1267467 center surface). 1 7 b is a cylinder block, 1 7 c is a cylinder head, and 19 is a fuel supply device including a fuel pump and an electric motor, and is disposed at the left rear of the cylinder block 17b and the cylinder head 1 7 c. 2 1 is an air inlet chamber containing an air filter. The air (intake air) cleaned by the air filter will pass through the cone tube 2 2 to the right rear of the cylinder block 1 7 b and the cylinder head 1 7 c. Intake system 2 3 . The fuel supplied from the fuel supply unit 19 is adjusted by the throttle body 25, and then injected into the intake air by the fuel injection valve 24. The fuel/air mixture® gas generated according to this will be supplied to the cylinder block gas and/or the built-in rectification force oil-burning system via the intake port and intake valve in the cylinder head 1 7 c. 7 2 In the middle of the picture, the other bottle system is 9 2 The valve oil is broken. The oil is burned and the resistance is reversed. The support wheel is ο 3 2, and the outer 8 匕 2 is provided at the high pressure and is set at 3 2 Installed gas inlet or 9 11 installed should be supplied with fuel burning seat 03⁄4 sprayed road oil & a JJ wheel two along the example of the implementation of this spool cylinder steam with machine-fired inner surface with heart-shaped body car The vertical longitudinal 1-I is the fuel-burning, which will be divided into the body cylinder and the left-hand cylinder and the oil-burning formula. The left installation should be placed in the formula and the right is placed in the formula. The heat of the cause is 7 11 The body is burned from the inside of the machine. The 9 ΊΧ will be installed and the oil should be burned. However, it will be cold and it will hit the straight wind and drive it. Simple and simple The Bickey's heat shield must be equipped with the effect of the air and the air, and the clean and simple will also be equipped with the C7 1S head cylinder steam close to 9 11 The installation should be supplied with oil. Can be used for this pressure 312XP / invention manual (supplement) /94-10/94120403 8 1267467
再 者 油 門 本 體 25 燃 油 喷 射閥24等進 氣系 裝置 23 與 燃 油 幫 浦 等 燃 油 供 應 裝 置 1丨 9， 係包失住車 身中 心面 la 而 配 置 於 二 側 使 内 燃 機 本 體 1 7 週邊的裝配 均衡 變佳 〇 [ 圖 式 簡 單 說 明 ] 圖 1 為 搭 載 本 發 明 之 内 燃 機 的二輪機車 1之- -實施 形 態 側 視 圖 0 圖 2 為 圖 1 中 的 丨内 燃 :機 1本 -體 1 7上部及其後方的放 大 側 視 圖 〇 圖 3 為 圖 2 之 俯 視 圖 〇 圖 4 為 圖 2 之 前 視 圖 〇 [ 主 要 元 件 符 號 說 明 ] 1 二 輪 機 車 la 車 身 中 心 面 2 主 車 架 3 頭 管 4 前 叉 5 前 輪 6 下 方 車 架 7 底 盤 車 架 7a 支 架 8 中 間 車 架 9 後 車 架 1 0 油 箱 11 坐 墊 312XP/發明說明書(補件)/94-10/94120403 9 1267467Further, the throttle body 25, the intake system 23 such as the fuel injection valve 24, and the fuel supply device 1丨9 such as the fuel pump are arranged to be displaced from the center plane la of the vehicle body, and are disposed on both sides to equalize the assembly of the periphery of the internal combustion engine body 17. Fig. 1 is a side view of a two-wheeled motor vehicle equipped with an internal combustion engine of the present invention. - Figure 2 is a side view of the internal combustion engine of Fig. 1: the upper part of the machine 1 body 1 and the rear thereof 3 is a top view of Fig. 2 is a top view of Fig. 2 之前 Fig. 2 is a front view of Fig. 2 [Main component symbol description] 1 Two-wheeled vehicle la body center surface 2 Main frame 3 Head tube 4 Front fork 5 Front wheel 6 Lower frame 7 Chassis frame 7a bracket 8 intermediate frame 9 rear frame 1 0 oil Seat pad 11 312XP / present specification (complement member) / 94-10 / 9,412,040,391,267,467
12 把 手 13 後 叉 14 軸 15 後 輪 16 後 緩 衝 器 17 内 燃 機 本 體 17a 汽 缸 軸 線 17b 汽 缸 體 17c 汽 缸 頭 1 7d 缸 頭 蓋 1 7e 曲 軸 箱 19 燃 油 供 應 裝 置 21 進 氣 室 22 錐 管 23 進 氣 系 裝 置 24 燃 油 噴 射 閥 25 油 門 本 體 2 7 燃 油 壓 力 調 整裝置 28 斷 油 閥 29 電 瓶 30 喷 嘴 座 312XP/發明說明書(補件)/94-10/94120403 1012 Handle 13 Rear fork 14 Shaft 15 Rear wheel 16 Rear bumper 17 Internal combustion engine body 17a Cylinder axis 17b Cylinder block 17c Cylinder head 1 7d Cylinder head cover 1 7e Crankcase 19 Fuel supply 21 Inlet chamber 22 Cone tube 23 Intake system 24 Fuel injection valve 25 Throttle body 2 7 Fuel pressure adjusting device 28 Oil shut-off valve 29 Battery 30 Nozzle holder 312XP / invention manual (supplement) /94-10/94120403 10