1296671 九、發明說明： 【發明所屬之技術領域】 本發明為關於内燃機之輔機安裝構造。 【先前技術】 在内燃機上必須安裝水泵、油泵等的輔機（a u X i 1 i a r y m a c h i n e )及 A C G (交流發電機）。以前在曲柄箱上裝著輔機 底座以安裝水泵和油泵等的輔機，再在曲柄箱的周圍部裝 著ACG定子底座（stator base)，而安裝ACG定子（例如， 參照專利文獻1 )。亦即，由於輔機底座和A C G定子底座為 分別的底座，因此，會增加零件數量，而且不容易組裝。 又，輔機之旋轉軸雖然可自曲柄軸予以驅動，但如上述由 於兩底座為分別的底座，因此，不能高精確度地保持良好 的軸間距離，且會有發生噪音等之問題。 (專利文獻）日本專利特開昭6 1 - 2 7 9 7 2 7號公報（圖1 )。 【發明内容】 (發明所欲解決之問題） 本發明為使上述ACG定子底座在輔機底座上一體化而可 謀求零件數量減少，且可謀求使輔機和動力傳達系統的組 裝作業容易者，同時，可保持具有良好高精確度之軸間距 離，且可減低噪音者。 (解決問題之手段） 本發明是為了解決上述課題而所完成，申請專利範圍第 1項之發明，其為由：支持收容曲柄軸，同時，設有貫通 曲柄軸的開口部之曲柄箱；及，設有貫通曲柄軸之開口部， 5 312XP/發明說明書(補件)/94-04/93140858 1296671 同時，向曲柄箱安裝之面；及，具有對交流發電機定子安 裝之面；進一步，設有藉曲柄軸而可驅動輔機的安裝面； 在其壁體部，設有可支持動力傳達用中間旋轉軸的輪轂部 之輔機底座，如此為特徵的内燃機之輔機安裝構造。 申請專利範圍第2項之發明為，在申請專利範圍第1項 之内燃機之輔機安裝構造中，在輔機底座之一邊側配置動 力傳達用中間旋轉軸，在輔機底座之另一邊側，則配置以 上述中間旋轉軸所傳達的動力而可旋轉之輔機，如此為特 申請專利範圍第3項之發明為，在申請專利範圍第2項 之内燃機之輔機安裝構造中，上述動力傳達用中間旋轉軸 為油泵軸，且支持自曲柄軸來的動力之輸入構件和對辅機 輸出動力之輸出構件，如此為特徵。 (發明效果） 根據申請專利範圍第1項之發明，由於以同一構件而支 持輔機和動力傳達系統，因此，可減少零件數量，且輔機 和動力傳達系統之組裝容易，又，可提高軸間距離之高精 確度且可使驅動噪音減低。 根據申請專利範圍第2項之發明，對自動力傳達構件來 之反向力其剛性平衡良好，而可使輔機安裝構造輕量化。 根據申請專利範圍第3項之發明，對特定的輔機之旋轉 軸可兼用為動力傳達用旋轉軸，因此藉此一構成，可使複 數個輔機的配置變成容易，而可提高空間效率並使内燃機 小型化。 6 312XP/發明說明書(補件)/94-04/9314〇858 1296671 【實施方式】 圖1為搭載具有本發明的輔機安裝構造之内燃機的速克 達型二輪機車之側視圖。此二輪機車1為在車架2的前端 一體形成有頭管3，在頭管3可左右旋轉自如地嵌裝有前 叉4，在前叉4的下端可旋轉自如地安裝前車輪5。在車架 2的後部，可上下搖動地安裝動力單元6。此一搖動式動力 單元6為以搖臂型頭上閥式4行程循環單氣缸之水冷式内 燃機7和動力傳達裝置8及後車輪支持部 9被構成一體 化。後車輪支持部9具有後車輪1 0。又，在車架2的後部 和動力單元 6 的後部之間介裝有後懸架系統（rear suspension)ll。在車架2的後方上部設有物品收容部12, 且設有可開閉自如地覆蓋此一物品收容部 1 2的上部開口 之座墊1 3。在車體中央部之腳踏板1 4的下部配設有燃料 箱15。車架2為以車體蓋16所覆蓋。 圖2為自左方觀看上述動力單元6的縱剖面圖，圖3為 含有該動力單元6的汽缸軸線、曲柄軸、滑輪軸、齒輪軸 等之面的剖面之展開圖。此動力單元的内燃機7為由：汽缸 塊2 0 ;及，汽缸頭21 ;及汽缸蓋2 2 ;及，曲柄箱2 3 ;如 此所構成，在指向大致水平方向之汽缸塊2 0的前端結合有 汽缸頭21，在汽缸頭21的前端結合有汽缸蓋2 2，在汽缸 塊2 0的後端結合有曲柄箱2 3。曲柄箱2 3為由左右的曲柄 箱2 3 A、2 3 B所構成。 在圖2、圖3中，在形成於汽缸塊2 0之汽缸孔2 4可滑 動地嵌裝有活塞2 5，同時，在被保持於左右的曲柄箱2 3 A、 7 312XP/發明說明書(補件)/94-04/9314085 8 "5 1296671 2 3 B之軸承 2 6、2 7，可旋轉地樞支曲柄軸 2 8。在活^ 及曲柄軸2 8上各別介由活塞銷2 9及曲柄銷3 0，而可 地樞著連桿3 1之兩端，當活塞2 5在往復動作時，則 曲柄軸28旋轉驅動。 在動力單元6中之動力傳達裝置8為由V型皮帶式 變速機3 2和齒輪減速機3 3所構成，動力傳達裝置8 體箱為由：右變速機箱4 0、左變速機箱4 1及後車輪支 4 2所構成。右變速機箱4 0為和左曲柄箱2 3 A被一體$ 左變速機箱4 1結合在右變速機箱4 0上，而後車輪支 4 2則結合在右變速機箱4 0上。 V型皮帶式無段變速機32的驅動軸為曲柄軸28本 在此處則設有V型皮帶式無段變速機3 2的滑輪4 3。V 帶式無段變速機3 2之從動軸4 4可旋轉自如地被支持 變速機箱4 0和後車輪支持箱4 2，此從動軸4 4介由離 離合器4 5設有V型皮帶式無段變速機3 2之從動滑輪 在驅動滑輪4 3和從動滑輪4 6上架掛有無端 V型皮与 型皮帶式無段變速機32為在曲柄軸28超過一定旋轉 轉時，則變成接續至離心式離合器 4 5之狀態，而從 44則開始旋轉。曲柄軸28的旋轉數更增大時，則藉 滑輪4 3之離心力應用裝置，而從動軸4 4的旋轉數則 柄軸28的旋轉數成為更大。 齒輪減速機3 3為以設在旋轉軸之3根齒輪群所構 第1軸為被支持在右變速機箱4 0和後車輪支持箱4 2 型皮帶式無段變速機3 2的從動軸4 4本身，而被形成 312XP/發明說明書(補件)/94-04/93140858 旋轉 可使 無段 的本 持箱 .作。 持箱 身， 型皮 在右 心式 46 〇 卜。V 數旋 動軸 驅動 比曲 成。 之V 有小 8 1296671 齒輪4 8。第2軸為可旋轉自如地被支持在右變速機箱4 Ο 和後車輪支持箱4 2之中間軸4 9，在上述從動軸的小齒輪 48上嚙合之齒輪50被一體嵌著，同時，形成和其鄰接之 小齒輪5 1。第3軸為可旋轉自如地被支持在右變速機箱4 0 和後車輪支持箱4 2之後車輪軸5 2，在上述中間軸的小齒 輪51上欲著有喃合之齒輪53。在後車輪軸52，後車輪10 被一體固定。藉此一構成，由於從動軸44之轉矩介由小齒 輪4 8、齒輪5 0、中間軸4 9、小齒輪51及齒輪5 3而被傳 達至後車輪軸5 2，因此，後車輪軸5 2對從動軸4 4可大幅 度地被減速。 圖4為自右方觀看内燃機7的縱剖面圖。在圖中，箭頭 F表示内燃機之前方，箭頭Up表示上方。在形成於汽缸塊 2 0之汽缸孔2 4的前端部相對之汽缸頭2 1的底面形成有燃 燒室6 0。在此燃燒室6 0，如圖3所示，點火塞8 6為了使 其先端的電極臨近燃燒室6 0，自内燃機的左側被安裝在汽 缸頭21上。在圖4中，在汽缸頭21的上部形成有進氣口 6 1，在汽缸頭2 1之下部則形成有排氣口 6 2。進氣口 6 1之 可開閉燃燒室側開口 6 1 a之進氣闊6 3，及，可開閉排氣口 6 2之燃燒室側開口 6 2 a的排氣閥6 4，各別可滑動自如地被 嵌裝在汽缸頭2 1上。 在進氣口 6 1的外側開口 6 1 b被接續至進氣管6 5 (圖2 ) 之下流端。在此進氣管6 5，自上流側之順序，接續有空氣 濾清器6 6、節流閥6 7及燃料噴射閥6 8 (圖2 )。在排氣口 6 2之外側開口 6 2 b則接續有排氣管6 9 (圖2 )之上流端，排 9 312XP/發明說明書(補件)/94-04/93140858 1296671 氣管6 9之下流端則被接續至消音器7 Ο (圖2、圖3 )。又， 藉閥彈簧7 1而被加勢能至開閥方向之上述進氣閥6 3及排 氣閥6 4 (圖4 )，則藉配置在以汽缸頭2 1和汽缸蓋2 2所形 成之動閥室7 2内的動閥裝置7 3而被開閉驅動（圖4)。 在圖4中，位於藉進氣閥6 3及排氣閥6 4所被夾住之V 字狀空間内，介由左右1對軸承7 4 (圖3 )而可旋轉自如地 樞支指向左右水平方向之1根凸輪軸75(圖3、圖4)。在 此凸輪軸7 5上一體形成有進氣凸輪7 6和排氣凸輪7 7 (圖 4 )。在位於比凸輪軸7 5更前方且上方之汽缸頭2 1上軸掛 有進氣搖擺軸（rockershaft)78，位於進氣搖擺軸78之下 方的汽缸頭2 1則軸掛有排氣搖擺軸7 9，在此進氣搖擺軸 7 8及排氣搖擺軸7 9上可滑動自如地各別樞支有進氣搖臂 8 0及排氣搖臂8 1。在此進氣搖臂8 0及排氣搖臂8 1之一端 設有滑動部8 0 a、8 1 a，在進氣搖臂8 0及排氣搖臂8 1之另 一端，則設有可擋接進氣閥63及排氣閥的閥桿（stem)的頂 端之擋接部80b、81b。 在凸輪軸75的左端部，一體設有從動鏈輪82(圖3)。 在曲柄軸28之左側曲柄臂（crank web)28a和前述主動滑 輪43之間，一體嵌著具有從動鏈輪82的一半’齒數的驅動 鏈輪8 3 (圖3)。在汽缸塊2 0和汽缸頭21之左側部，設有 可連接上述驅動鏈輪8 3和從動鏈輪8 2的傳動構件收容空 間8 4，在此空間中，在上述驅動鏈輪8 3和從動鏈輪8 2上 架掛有無端環鏈8 5。以上為動閥裝置7 3之構成。當曲柄 軸2 8旋轉時，凸輪軸7 5則以一半的旋轉數被旋轉驅動， 10 312XP/發明說明書(補件)/94-04/93140858 1296671 而以既定之定時（timing)藉進氣凸輪76及排氣凸輪77而 開閉進氣閥6 3及排氣閥6 4。 如圖3、圖4、圖5所示，在内燃機7的右側下部，設 有油栗130和水系140。圖3表示油录130和水栗140之 外殼，而未表示内部。在圖 4，將形成上述油泵1 3 0或水 泵140之外殼的輔機底座110(後述）除外，而表示露在右 曲柄箱2 3 B之右側面的輔機底座安裝面9 0，在輔機底座安 裝面所圍住的部份為表示曲柄軸2 8、油栗軸1 3 1、水栗軸 1 4 1及關於此等的軸之驅動機構。 於圖4中，在曲柄軸28嵌著有油泵驅動齒輪132，在油 泵軸131嵌著有嚙合在上述油泵驅動齒輪132之油泵從動 齒輪133。又，在油栗軸131嵌著有水栗驅動鏈輪142，在 水泵軸1 4 1則嵌著有水泵從動鏈輪1 4 3，在此等兩鏈輪上 架掛有無端環鏈144。當曲柄軸28旋轉時，藉齒輪132、 1 3 3，油泵軸 1 3 1，可被旋轉驅動，又，藉齒輪 1 4 2、1 4 3 和無端環鏈1 4 4，水泵軸1 4 1可被旋轉驅動。在上述構成 中，油泵軸1 3 1也具有可併用為對水泵軸1 4 1傳達動力的 動力傳達用中間旋轉軸之功能。 圖5為通過圖4之曲柄軸28、油泵軸131及水泵軸141 之剖面展開圖（圖4之V - V剖面展開圖）。在圖中，箭頭R 表示右方。左右的曲柄箱23A、23B為藉螺栓91而被結合。 左右曲柄箱2 3 A、2 3 B的結合為將螺栓9 1插通至右曲柄箱 2 3 B的接續螺栓插通孔9 2，而螺入左曲柄箱2 3 A的接續螺 栓用螺絲孔8 7，如此所成。曲柄軸2 8為介由軸承2 6、2 7 11 312XP/發明說明書(補件)/94-04/93140858 1296671 可旋轉地被支持在左右的曲柄箱23A、23B上。 在曲柄軸2 8之鄰接右側軸承2 7的部份，嵌著有前述油 泵驅動齒輪1 3 2。在右曲柄箱2 3 B的右側安裝有輔機底座 (base)llO。在圍住輔機底座110的曲柄軸28之筒狀突出 部的A C G定子安裝面1 1 3 (和圖8相關，如後述），其藉螺 栓152而安裝ACG(交流發電機）150之定子151。在圖中表 示3根螺栓中之1根。在定子1 5 1設有電流取出線1 5 3。 在貫通輔機底座110之貫通孔112的曲柄軸28的端部安裝 有A C發電機1 5 0之轉子1 5 4，在此轉子1 5 4的端面以螺絲 固定有風扇155。此風扇155是使散熱器156通風者。在 上述輔機底座1 1 0的貫通孔1 1 2和曲柄軸2 8之間介裝有密 封材料88。 圖6為右曲軸箱23B之右面圖，圖7為圖6之VII - VII 剖面圖。在圖6、圖7中，前述左右曲柄箱接續螺栓91被 插通至插通孔9 2。在右曲柄箱2 3 B的右側面，形成有輔機 底座安裝面9 0。在以輔機底座安裝面9 0 .所圍住部份之一 邊的端部，設有曲柄軸貫通孔9 3。曲柄軸2 8通過此貫通 孔93而向曲柄箱的右方突出。在上述貫通孔93設有軸承 2 7的支持部9 4 (圖7 )。 在輔機底座安裝面9 0所圍住部份的中央部形成有油泵 支持凹部9 5，圍繞其而形成流入部油溝9 6和流出部油溝 9 7。朝此等油溝9 6、9 7自右曲柄箱2 3 B的周圍部起穿設有 油流入通路9 8和油流出通路9 9 (圖6 )。在油溝9 6、9 7的 附近則設有油泵殼安裝用螺絲孔1 0 0。 12 312XP/發明說明書(補件)/94-04/93140858 1296671 在輔機底座安裝面 9 0所圍住部份之另一邊的端部，則 形成有水泵軸支持凹部1 〇 1。在輔機底座安裝面9 0的周圍 部，設有為了螺入後述之輔機底座1 1 0安裝螺栓的輔機底 座安裝用螺絲孔1 0 2。 圖8為輔機底座110之右面圖，圖9為輔機底座110之 左面圖（圖8之裏側），圖1 0為圖8之X - X剖面圖。在輔機 底座110之左面（圖9)，設有可擋接右曲柄箱23B之辅機 底座安裝面 90 的擋接面 110a，在其面上形成有襯墊 (packing)安裝溝110b。輔機底座110使上述擋接面110a 擋接在右曲柄箱23B之安裝面90上，再將插通於其周圍部 的輔機底座安裝螺栓插通孔1 1 1、1 1 1 A的螺栓安裝螺入至 右曲柄箱2 3 B之輔機底座安裝用螺絲孔1 0 2上。螺栓插通 孔1 1 1 A為如後述之水泵箱安裝螺栓所插通之插通孔。 在輔機底座1 1 0的一端設有曲柄軸貫通孔11 2，在其周 圍部設有3個ACG定子安裝面1 13及ACG定子安裝用螺絲 孔1 1 4。ACG定子安裝用螺栓1 5 2 (圖5 )被螺入在此螺絲孔 1 1 4 上。 在輔機底座1 1 0的中央部設有輪轂部（bo s s ) 1 1 5。在輪 轂部1 1 5的左面穿設有油泵軸支持凹部1 1 6 (圖9、圖1 0 )。 油泵軸1 3 1為藉右曲柄箱2 3 B的油泵軸支持凹部9 5 (圖7 ) 和設在上述輪轂部1 1 5之油泵軸支持凹部1 1 6而可旋轉地 被支持。 在輔機底座11 0之另一端設有水泵軸支持貫通孔Π 7。 水泵軸1 4 1為介由嵌裝在右曲柄箱2 3 B之水泵軸支持凹部 13 312XP/發明說明書(補件)/94-04/93140858 1296671 1 Ο 1和上述貫通孔 1 1 7的軸承支持部 1 1 8 (圖 1 0 )之軸承 1 4 5 (圖5 )而可旋轉地被支持。在輔機底座1 1 0之端部形成 有水泵殼安裝面1 1 9。在該安裝面1 1 9所圍繞部份之端部， 安裝有水泵之排出管1 2 8。 圖11為水泵殼120之右面圖，圖12為該水泵殼120之 左面圖（圖11之裏側），圖13為圖11之XIII-XIII剖面圖， 圖14為圖11之XIV-XIV剖面圖。在水泵殼120之左面（圖 12)設有擋接在輔機底座11〇的水泵殼安裝面119之擋接面 120a，在其面上形成有襯墊安裝溝120b。在水泵殼120的 周圍部設有3個螺栓插通孔1 2 1、1 2 1 A。在安裝水泵殼1 2 0 時，使上述擋接面120a擋接在輔機底座 11〇的安裝面 1 1 9，在其中2個螺栓插通孔1 2 1插通短的螺栓’再螺入被 設在對應於輔機底座1 1 〇位置所設的水泵殼安裝用螺絲孔 1 2 2，而將水泵殼1 2 0固定在輔機底座1 1 〇上。在螺栓插通 孔1 2 1 A上插通長的螺栓1 2 3 (圖5 )，進一步，插通對應於 輔機底座1 1 〇位置的螺栓插通孔1 1 1 A ’然後再螺入對應於 右曲柄箱2 3 B位置之螺絲孔1 〇 2，而使水泵殼1 2 0和辅機 底座110及右曲柄箱23B —體固定。 在水泵殼1 2 0的頂部設有大小2個冷却水流入口 1 2 4、 1 2 5。又，在下部設有連通至璇渦形流路覆蓋部1 2 6 A之排 出水通路覆蓋部1 2 7 A。而其和輔機底座1 1 0的璇渴形流路 基底部126B及排出水通路基底部127β(圖8)成對，並各成 為漩渦形流路1 2 6及排出水通路1 2 7。排出水為經過安裝 在辅機底座110的排出管128(圖8、圖9、圖10)而被送至 14 312XP/發明說明書(補件)/94-04/93140858 1296671 汽缸塊2 0。 在圖5中，藉右曲柄箱2 3 Β的油泵軸支持凹部9 5和設 在輔機底座110之輪穀部115的油系軸支持凹部116，而 可旋轉地支持油泵軸1 3 1。在油栗軸1 3 1，被固定有油泵從 動齒輪133和水泵驅動鏈輪142。鄰接至右曲柄箱23Β，在 油泵軸131設有油泵130之内轉子134及外轉子135，其 外側被以固定在右曲柄箱2 3 Β之油泵殼1 3 6所覆蓋。油泵 殼1 3 6為被以螺絲安裝在設於右曲柄箱2 3 Β之螺絲孔1 0 0 上。 介由曲柄箱2 3 Β的端部之水泵軸支持凹部1 0 1 ;及，被 支持在輔機底座1 1 0端部之水泵軸支持貫通孔1 1 7的内側 之軸承1 4 5 ;其可旋轉地支持水系轴1 4 1。在此水系軸1 4 1 固定有水泵從動鏈輪1 4 3。在此水泵從動鏈輪1 4 3和被固 定在前述油泵軸131之水泵驅動鏈輪142被架掛有無端環 鏈144。在水泵軸141之對右方突出的軸端部，固定有水 泵葉輪1 4 6，其外側被以水泵殼1 2 0所覆蓋。在葉輪1 4 6 和轴承1 4 5之間，在輔機底座1 1 0之水泵軸支持貫通孔1 1 7 的内面和水泵軸1 4 1之間安裝有密封材料1 4 7，在被該密 封材料1 4 7和水泵殼1 2 0及輔機底座1 1 0的水泵軸支持貫 通孔 1 1 7内面所圍繞之空間則形成有水泵的漩渦形流路 126(未圖式）。 當曲柄軸 2 8旋轉時，藉油泵驅動齒輪1 3 2和該從動輪 1 3 3的喃合，油录軸1 3 1則會旋轉，而藉油系殼1 3 6中的 内轉子134和外轉子135之作用，積存在曲柄箱23的内底 15 312ΧΡ/發明說明書(補件)/94-04/93140858 1296671 部的潤滑用油則自穿設在右曲柄箱 2 3 B 内的油流入 9 8 (圖6 )而被吸入，並自油流出通路9 9 (圖6 )被排出 供給至曲柄箱2 3或汽缸頭2 1。 當油果軸1 31旋轉時，藉自油泵軸1 31之水栗驅動 142而介由無端環鏈144所驅動之水栗從動鏈輪143, 轴1 41則會旋轉，並藉葉輪1 4 6之作用，在散熱器1 被冷卻之還流冷卻水則從設在水泵殼1 2 0的冷卻水流 1 2 4、1 2 5而被吸入，其通過旋渦形流路1 2 6和排出水 1 2 7，而自安裝於輔機底座1 1 0的排出管1 2 8而被排出 給至汽缸塊2 0等。 在輔機底座110上安裝有 ACG定子151。在曲柄 上則安裝有ACG轉子1 50，而在上述定子1 51的周圍名 當曲柄軸28旋轉時，藉上述兩者之相互作用而可發1 自電流取出線1 5 3 (圖5 )即可取出電流。 如以上所詳述，在上述實施形態中，由於藉同一構> 機底座110)而可支持辅機（水泵140)及可驅動其之動 達系統（具有中間旋轉軸功能之油泵軸1 3 1及齒輪等： 此，可減少零件數量，且可容易組裝輔機和動力傳達I 又，也可提高軸間距離之精確度並可減低驅動噪音。 又，由於在輔機底座1 1 0之一邊側（曲柄箱側）配置 力傳達構件（具有中間旋轉軸功能之油泵軸 1 3 1 )，而 機底座 1 1 0之另一邊側（曲柄箱之反對側）則配置有 (水泵1 4 0之主要部份），因此，對從動力傳達構件來 向力可有良好的剛性平衡，並可使輔機安裝構造輕量 312XP/發明說明書(補件)/94-04/93140858 通路 ， 而 鏈輪 水泵 56所 入口 通路 再供 幸由2 8 .轉。 ，並 l (輔 力傳 ，因 統， 有動 在輔 辅機 的反 化0 16 1296671 進一步，由於可使油泵軸1 31兼用為動力傳達用中間旋 轉軸，因此，在輔機底座可配置複數個輔機，而可提高空 間效率並使内燃機小型化。 【圖式簡單說明】 圖1為搭載具有本發明之輔機安裝構造的内燃機之速克 達型二輪機車1之側視圖。 圖2為自左方觀看上述二輪機車之動力單元6的縱剖面 圖。 圖3為含有上述動力單元6之汽缸軸線、曲柄軸、滑輪 軸、齒輪軸之面的剖面展開圖。 圖4為自右方觀看内燃機7之縱剖面圖。 圖5為連通圖4之曲柄軸2 8、油泵軸1 31及水泵軸1 41 之剖面展開圖（圖4之V - V剖面展開圖）。 圖6為右曲柄箱23B之右面圖。 圖7為圖6之VII-VII剖面圖。 圖8為輔機底座110之右面圖。 圖9為輔機底座1 1 0之左面圖（圖8之裏側）。 圖10為圖8之X-X剖面圖。 圖11為水泵殼120之右面圖。 圖1 2為該水泵殼1 2 0之左面圖（圖1 1之裏側）。 圖13為圖11之XIII-XIII剖面圖。 圖14為圖11之XIV-XIV剖面圖。 【主要元件符號說明】 1 速克達型二輪機車 17 312XP/發明說明書(補件)/94-04/93140858 1296671 2 車 架 3 頭 管 4 前 叉 5 前 車 輪 6 動 力 單 元 7 内 燃 機 8 動 力 傳 達 裝 置 9 後 車 輪 支 持 部 10 後 車 輪 11 後 懸 吊 系 統 12 物 品 收 容 部 13 座 墊 14 腳 踏 板 15 燃 料 箱 16 車 體 蓋 20 汽 缸 塊 21 汽 缸 頭 21a ， 擋 接 面 22 汽 缸 蓋 23 曲 柄 箱 23A 左 曲 柄 箱 23B 右 曲 柄 箱 24 汽 缸 孔 25 活 塞1296671 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to an auxiliary machine mounting structure for an internal combustion engine. [Prior Art] Auxiliary machines (a u X i 1 i a r y m a c h i n e ) and A C G (alternator) of a water pump and an oil pump must be installed in the internal combustion engine. In the past, an auxiliary machine base was attached to the crankcase to mount an auxiliary machine such as a water pump and an oil pump, and an ACG stator base was attached to the periphery of the crank case, and an ACG stator was mounted (for example, refer to Patent Document 1). That is, since the auxiliary machine base and the A C G stator base are separate bases, the number of parts is increased and it is not easy to assemble. Further, although the rotating shaft of the auxiliary machine can be driven from the crank shaft, since the two bases are separate bases as described above, it is not possible to maintain a good inter-axis distance with high accuracy, and there is a problem that noise or the like occurs. (Patent Document) Japanese Patent Laid-Open No. Hei 6 1 - 2 7 9 7 2 7 (Fig. 1). [Problem to be Solved by the Invention] In the present invention, the ACG stator base is integrated on the auxiliary machine base, and the number of parts can be reduced, and the assembly work of the auxiliary machine and the power transmission system can be easily performed. At the same time, it is possible to maintain a high-accuracy inter-axis distance and reduce noise. (Means for Solving the Problems) The present invention has been made to solve the above problems, and the invention of claim 1 is characterized in that: a crank case that supports an accommodation of a crankshaft and an opening portion penetrating the crankshaft; and , having an opening through the crankshaft, 5 312XP / invention manual (supplement) / 94-04/93140858 1296671 at the same time, the surface to be mounted on the crankcase; and, having the surface mounted to the alternator stator; further, There is a mounting surface for driving the auxiliary machine by means of a crankshaft; and an auxiliary machine base for supporting a hub portion of the intermediate rotating shaft for power transmission is provided in the wall portion thereof, and the auxiliary machine mounting structure of the internal combustion engine is characterized. According to the invention of claim 2, in the auxiliary machine mounting structure of the internal combustion engine of the first aspect of the patent application, the intermediate rotating shaft for power transmission is disposed on one side of the auxiliary machine base, and the other side of the auxiliary machine base is disposed on the side of the auxiliary machine base. An auxiliary machine that is rotatable by the power transmitted by the intermediate rotating shaft is provided, and the invention of the third aspect of the patent application is the power transmission in the auxiliary machine mounting structure of the internal combustion engine of the second application of the patent scope. The intermediate rotating shaft is an oil pump shaft, and an input member for power supported from the crank shaft and an output member for outputting power to the auxiliary machine are characterized. (Effect of the Invention) According to the invention of the first aspect of the patent application, since the auxiliary machine and the power transmission system are supported by the same member, the number of parts can be reduced, and the assembly of the auxiliary machine and the power transmission system is easy, and the shaft can be improved. High accuracy between the distances and reduced drive noise. According to the invention of the second aspect of the patent application, the rigidity of the reverse force of the automatic force transmitting member is well balanced, and the auxiliary machine mounting structure can be made lighter. According to the invention of claim 3, the rotating shaft of the specific auxiliary machine can be used as the rotating shaft for power transmission. Therefore, the configuration of the plurality of auxiliary machines can be facilitated, and the space efficiency can be improved. Miniaturize the internal combustion engine. 6 312XP/Invention Manual (Supplement)/94-04/9314〇858 1296671 [Embodiment] FIG. 1 is a side view of a scooter type two-turbine vehicle equipped with an internal combustion engine having an auxiliary machine mounting structure according to the present invention. In the second motor vehicle 1, the head pipe 3 is integrally formed at the front end of the frame 2, and the front fork 4 is rotatably fitted to the head pipe 3, and the front wheel 5 is rotatably attached to the lower end of the front fork 4. At the rear of the frame 2, the power unit 6 can be mounted up and down. The rocking power unit 6 is integrally formed by a water-cooled internal combustion engine 7 and a power transmission device 8 and a rear wheel support portion 9 which are single-cylinder type four-stroke cycle type. The rear wheel support portion 9 has a rear wheel 110. Further, a rear suspension 11 is interposed between the rear portion of the frame 2 and the rear portion of the power unit 6. An article accommodating portion 12 is provided at an upper rear portion of the frame 2, and a seat cushion 13 that can openly and closably cover an upper opening of the article accommodating portion 1 2 is provided. A fuel tank 15 is disposed at a lower portion of the footrest 14 at the center of the vehicle body. The frame 2 is covered by a body cover 16. Fig. 2 is a longitudinal sectional view of the power unit 6 viewed from the left side, and Fig. 3 is a developed view of a cross section including a cylinder axis, a crank shaft, a pulley shaft, a gear shaft, and the like of the power unit 6. The internal combustion engine 7 of the power unit is composed of: a cylinder block 20; and, a cylinder head 21; and a cylinder head 2 2; and a crank case 2 3; and is configured to be coupled at the front end of the cylinder block 20 directed to the substantially horizontal direction. There is a cylinder head 21 to which a cylinder head 22 is coupled to the front end of the cylinder head 21, and a crank case 23 is coupled to the rear end of the cylinder block 20. The crankcase 2 3 is composed of left and right crankcases 2 3 A and 2 3 B. In Figs. 2 and 3, the piston 25 is slidably fitted in the cylinder bore 24 formed in the cylinder block 20, and at the same time, in the left and right crankcases 2 3 A, 7 312XP / invention manual ( Replenishment) /94-04/9314085 8 "5 1296671 2 3 B bearing 2 6, 2 7, rotatably pivoted crankshaft 2 8 . The piston 2 and the crank pin 30 are respectively disposed on the movable shaft and the crank shaft 28, and the two ends of the connecting rod 3 1 are pivotally supported. When the piston 25 is reciprocating, the crank shaft 28 is rotated. drive. The power transmission device 8 in the power unit 6 is composed of a V-belt type transmission 3 2 and a gear reducer 33. The power transmission device 8 is made up of a right shifting case 40, a left shifting case 4 1 and The rear wheel branch is composed of 4 2 . The right shifting case 40 is integrated with the left crank case 2 3 A. The left shifting case 4 1 is coupled to the right shifting case 40, and the rear wheel set 42 is coupled to the right shifting case 40. The drive shaft of the V-belt type stepless speed changer 32 is the crank shaft 28. Here, the pulley 43 of the V-belt type stepless speed changer 3 2 is provided. The driven shaft 4 4 of the V-belt type stepless speed changer 3 is rotatably supported by the shifting chassis 40 and the rear wheel support case 4 2, and the driven shaft 4 4 is provided with a V-belt via the clutch 4 5 The driven pulley of the stepless speed changer 3 2 is mounted on the drive pulley 4 3 and the driven pulley 46 with an endless V-shaped leather and a belt-type stepless speed changer 32. When the crankshaft 28 exceeds a certain rotation, it becomes a continuation. It is in the state of the centrifugal clutch 45, and starts to rotate from 44. When the number of rotations of the crankshaft 28 is further increased, the centrifugal force is applied to the pulleys 4 3, and the number of rotations of the driven shafts 4 is larger than the number of rotations of the stems 28. The gear reducer 3 3 is a driven shaft supported by the first gear of the three gear groups provided on the rotating shaft, and is supported by the right shifting chassis 40 and the rear wheel support box 4 2 belt type stepless speed changer 3 2 4 4 itself, and formed 312XP / invention manual (supplement) /94-04/93140858 rotation can make the paragraph without the box. Holding the box body, the skin is in the right heart type 46 〇 卜. The V-number rotary axis drive ratio is curved. V has a small 8 1296671 gear 4 8. The second shaft is rotatably supported by the right shifting housing 4 Ο and the intermediate shaft 4 of the rear wheel support case 4 2 , and the gear 50 meshing on the pinion 48 of the driven shaft is integrally embedded, and A pinion 51 is formed adjacent thereto. The third shaft is rotatably supported by the right shifting chassis 40 and the rear wheel support case 4 2 and the wheel axle 52, and the pinion gear 53 is desired on the pinion 51 of the intermediate shaft. At the rear wheel axle 52, the rear wheel 10 is integrally fixed. With this configuration, since the torque of the driven shaft 44 is transmitted to the rear wheel axle 52 through the pinion gear 48, the gear 50, the intermediate shaft 49, the pinion 51, and the gear 53, the rear wheel The shaft 52 is substantially decelerated by the driven shaft 4 4 . 4 is a longitudinal sectional view of the internal combustion engine 7 viewed from the right. In the figure, an arrow F indicates the front side of the internal combustion engine, and an arrow Up indicates the upper side. A combustion chamber 60 is formed on the bottom surface of the cylinder head 21 opposed to the front end portion of the cylinder bore 24 formed in the cylinder block 20. In this combustion chamber 60, as shown in Fig. 3, the ignition plug 86 is mounted on the cylinder head 21 from the left side of the internal combustion engine in order to bring the electrode at its tip end adjacent to the combustion chamber 60. In Fig. 4, an intake port 6 is formed in the upper portion of the cylinder head 21, and an exhaust port 6 2 is formed in the lower portion of the cylinder head 221. The intake port 6 1 can open and close the combustion chamber side opening 6 1 a of the inlet width 6 3 , and the exhaust valve 6 4 of the combustion chamber side opening 6 2 a of the exhaust port 6 2 can be opened and closed, each slidable It is freely fitted to the cylinder head 2 1 . The outer opening 6 1 b of the intake port 6 1 is connected to the flow end below the intake pipe 6 5 (Fig. 2). In this order of the intake pipe 65, from the upstream side, there are an air cleaner 66, a throttle valve 67 and a fuel injection valve 6 8 (Fig. 2). At the outer side opening 6 2 b of the exhaust port 6 2 is connected to the upper end of the exhaust pipe 6 9 (Fig. 2), and the row 9 312XP / invention manual (supplement) / 94-04/93140858 1296671 trachea 6 9 flow The end is connected to the silencer 7 图 (Fig. 2, Fig. 3). Further, the intake valve 63 and the exhaust valve 64 (FIG. 4) which are added to the valve opening direction by the valve spring 71 are disposed by the cylinder head 21 and the cylinder head 22 The movable valve device 73 in the valve chamber 7 2 is driven to open and close (Fig. 4). In Fig. 4, it is located in a V-shaped space sandwiched by the intake valve 63 and the exhaust valve 64, and is rotatably pivoted to the left and right by a pair of left and right bearings 7 (Fig. 3). One camshaft 75 in the horizontal direction (Figs. 3 and 4). An intake cam 76 and an exhaust cam 7 7 (Fig. 4) are integrally formed on the cam shaft 75. An engine rocker shaft 78 is hung on the cylinder head 2 1 located further forward and above the cam shaft 75, and the cylinder head 2 1 located below the intake rocking shaft 78 has an exhaust swing shaft. 7 9, the intake rocker shaft 78 and the exhaust rocker shaft 79 are slidably supported by the intake rocker arm 80 and the exhaust rocker arm 8 1 respectively. One end of the intake rocker arm 80 and the exhaust rocker arm 8 1 is provided with sliding portions 80a, 8 1 a, and at the other end of the intake rocker arm 80 and the exhaust rocker arm 8 1 The intake valve 63 and the stoppers 80b and 81b of the tip end of the stem of the exhaust valve can be blocked. At the left end portion of the cam shaft 75, a driven sprocket 82 (Fig. 3) is integrally provided. A drive sprocket 8 3 (Fig. 3) having a half of the number of teeth of the driven sprocket 82 is integrally fitted between the left crank arm 28a of the crankshaft 28 and the aforementioned active runner 43. In the left side portion of the cylinder block 20 and the cylinder head 21, a transmission member accommodating space 814 for connecting the above-described drive sprocket 8 3 and the driven sprocket 8 2 is provided, in which the drive sprocket 8 3 is provided. An endless loop chain 8 5 is attached to the driven sprocket 8 2 . The above is the configuration of the movable valve device 73. When the crankshaft 28 rotates, the camshaft 7 5 is rotationally driven by half the number of revolutions, 10 312XP/invention specification (supplement)/94-04/93140858 1296671 and the intake cam is fed at a predetermined timing. 76 and the exhaust cam 77 open and close the intake valve 613 and the exhaust valve 6.4. As shown in Figs. 3, 4, and 5, the oil pump 130 and the water system 140 are provided on the lower right side of the internal combustion engine 7. Fig. 3 shows the outer casing of the oil gauge 130 and the water chestnut 140, and does not show the inside. In Fig. 4, the auxiliary machine base 110 (described later) which forms the outer casing of the oil pump 130 or the water pump 140 is excluded, and the auxiliary machine base mounting surface 90 which is exposed on the right side of the right crank case 2 3 B is shown. The portion enclosed by the mounting surface of the base is a drive mechanism for the crankshaft 28, the oil chest shaft 133, the water chest shaft 141, and the shafts. In Fig. 4, an oil pump driving gear 132 is fitted to the crank shaft 28, and an oil pump driven gear 133 meshing with the oil pump driving gear 132 is fitted to the oil pump shaft 131. Further, a water pump drive sprocket 142 is fitted to the oil pump shaft 131, and a water pump driven sprocket 1 4 3 is fitted to the water pump shaft 141. The endless chain 144 is hung on the two sprocket wheels. When the crankshaft 28 rotates, the oil pump shafts 13 3 can be rotationally driven by the gears 132, 13 3, and the gears 1 4 2, 1 4 3 and the endless loops 1 4 4, the water pump shaft 1 4 1 Can be driven by rotation. In the above configuration, the oil pump shaft 133 also has a function of being used as an intermediate rotation shaft for power transmission that transmits power to the water pump shaft 141. Fig. 5 is a cross-sectional development view of the crankshaft 28, the oil pump shaft 131, and the water pump shaft 141 of Fig. 4 (V-V cross-sectional development view of Fig. 4). In the figure, the arrow R indicates the right side. The left and right crankcases 23A and 23B are joined by a bolt 91. The combination of the left and right crankcases 2 3 A, 2 3 B is a connecting bolt insertion hole 9 2 for inserting the bolt 9 1 into the right crank case 2 3 B, and a screw hole for the connecting bolt screwed into the left crank case 2 3 A 8 7, so done. The crankshaft 28 is rotatably supported on the left and right crankcases 23A, 23B via bearings 2 6, 2 7 11 312XP / invention specification (supplement) / 94-04 / 93140858 1296671. The aforementioned oil pump drive gear 1 3 2 is embedded in a portion of the crankshaft 28 adjacent to the right bearing 27. An auxiliary base 11O is attached to the right side of the right crank case 2 3 B. The ACG stator mounting surface 1 1 3 (refer to FIG. 8 , as will be described later) surrounding the cylindrical projection of the crankshaft 28 of the auxiliary machine base 110 is mounted with the stator 151 of the ACG (alternator) 150 by means of the bolt 152. . One of the three bolts is shown in the figure. A current take-out line 153 is provided in the stator 151. A rotor 154 of the A C generator 150 is attached to the end of the crank shaft 28 that penetrates the through hole 112 of the auxiliary machine base 110, and a fan 155 is fixed to the end surface of the rotor 154 by screws. This fan 155 is a ventilator for the radiator 156. A sealing material 88 is interposed between the through hole 1 1 2 of the auxiliary machine base 110 and the crank shaft 28. Fig. 6 is a right side view of the right crankcase 23B, and Fig. 7 is a sectional view taken along line VII-VII of Fig. 6. In Figs. 6 and 7, the left and right crankcase connecting bolts 91 are inserted into the insertion holes 91. On the right side surface of the right crank case 2 3 B, an auxiliary machine base mounting surface 90 is formed. A crankshaft through hole 913 is provided at an end portion of one of the sides of the auxiliary machine base mounting surface 90. The crankshaft 28 projects through the through hole 93 to the right of the crankcase. A support portion 94 (Fig. 7) of the bearing 27 is provided in the through hole 93. An oil pump support recess 95 is formed in a central portion of the portion surrounded by the auxiliary base mounting surface 90, and an inflow portion oil groove 96 and an outflow portion oil groove 9 7 are formed therearound. The oil inflow passages 98 and the oil outflow passages 9 9 (Fig. 6) are formed from the peripheral portions of the right crankcases 2 3 B toward the oil grooves 9 6 and 9 7 . In the vicinity of the oil grooves 9 6 and 9 7 , a screw hole 1 0 0 for mounting the oil pump casing is provided. 12 312XP/Invention Manual (Repair)/94-04/93140858 1296671 A pump shaft support recess 1 〇 1 is formed at the other end of the enclosed portion of the auxiliary base mounting surface 90. In the peripheral portion of the auxiliary machine base mounting surface 90, a screw hole 1 0 2 for mounting the auxiliary base for screwing the auxiliary base 1 1 0 to be described later is provided. 8 is a right side view of the auxiliary machine base 110, FIG. 9 is a left side view of the auxiliary machine base 110 (the inner side of FIG. 8), and FIG. 10 is an X-X sectional view of FIG. On the left side of the auxiliary base 110 (Fig. 9), a blocking surface 110a for blocking the auxiliary base mounting surface 90 of the right crank case 23B is provided, and a packing mounting groove 110b is formed on the surface thereof. The auxiliary machine base 110 blocks the above-mentioned blocking surface 110a on the mounting surface 90 of the right crank case 23B, and then inserts the bolts of the auxiliary machine base through which the peripheral portion is inserted into the through hole 1 1 1 , 1 1 1 A Install the screw into the screw hole 1 0 2 of the auxiliary crank base of the right crankcase 2 3 B. The bolt insertion hole 1 1 1 A is an insertion hole through which the pump box mounting bolt to be described later is inserted. A crankshaft through hole 11 2 is provided at one end of the auxiliary machine base 110, and three ACG stator mounting faces 1 13 and ACG stator mounting screw holes 1 14 are provided in the peripheral portion thereof. The ACG stator mounting bolt 1 5 2 (Fig. 5) is screwed into this screw hole 1 1 4 . A hub portion (bo s s ) 1 15 is provided at a central portion of the auxiliary machine base 110. An oil pump shaft support recess 1 1 6 is formed in the left side of the hub portion 1 15 (Fig. 9, Fig. 10). The oil pump shaft 1 3 1 is rotatably supported by an oil pump shaft support recess 9 5 (Fig. 7) of the right crank case 2 3 B and an oil pump shaft support recess 1 16 provided in the hub portion 1 15 . A pump shaft support through hole Π 7 is provided at the other end of the auxiliary machine base 110. The water pump shaft 1 4 1 is a bearing supported by a water pump shaft supporting recess 13 312XP/invention specification (supplement)/94-04/93140858 1296671 1 Ο 1 and the above-mentioned through hole 1 1 7 fitted in the right crank case 2 3 B The bearing 1 4 8 (Fig. 10) of the support portion 1 1 8 (Fig. 10) is rotatably supported. A water pump casing mounting surface 1 1 9 is formed at an end portion of the auxiliary machine base 110. At the end of the portion surrounded by the mounting surface 1 19 , a discharge pipe 1 28 of the water pump is mounted. 11 is a right side view of the water pump casing 120, FIG. 12 is a left side view of the water pump casing 120 (inside the FIG. 11), FIG. 13 is a cross-sectional view taken along the line XIII-XIII of FIG. 11, and FIG. 14 is a sectional view taken along line XIV-XIV of FIG. . On the left side of the water pump casing 120 (Fig. 12), a blocking surface 120a that is coupled to the water pump casing mounting surface 119 of the auxiliary machine base 11A is provided, and a gasket mounting groove 120b is formed on the surface. Three bolt insertion holes 1 2 1 and 1 2 1 A are provided in the peripheral portion of the water pump casing 120. When the water pump casing 1 2 0 is installed, the above-mentioned blocking surface 120a is blocked from the mounting surface 11 of the auxiliary machine base 11〇, and the two bolt insertion holes 1 2 1 are inserted through the short bolts The pump casing mounting screw hole 1 2 2 provided at the position corresponding to the auxiliary machine base 1 1 〇 is fixed, and the water pump casing 1 20 is fixed to the auxiliary machine base 1 1 〇. Insert a long bolt 1 2 3 (Fig. 5) into the bolt insertion hole 1 2 1 A, and further, insert the bolt insertion hole 1 1 1 A ' corresponding to the position of the auxiliary machine base 1 1 然后 and then screw in Corresponding to the screw hole 1 〇2 of the right crank case 2 3 B position, the water pump housing 1 2 0 and the auxiliary machine base 110 and the right crank case 23B are integrally fixed. On the top of the water pump casing 120, there are two cooling water inlets 1 2 4, 1 2 5 . Further, in the lower portion, a drain passage cover portion 1 2 7 A that communicates with the vortex-shaped flow path covering portion 1 2 6 A is provided. Further, it is paired with the thirsty flow path base portion 126B of the auxiliary machine base 110 and the discharge water passage base portion 127β (Fig. 8), and each becomes a swirling flow path 1 2 6 and a discharge water passage 1 27 . The discharged water is sent to the discharge pipe 128 (Fig. 8, Fig. 9, Fig. 10) installed in the auxiliary machine base 110 to 14 312XP/invention specification (supplement)/94-04/93140858 1296671 cylinder block 20. In Fig. 5, the oil pump shaft 133 is rotatably supported by the oil pump shaft support recess 95 of the right crank case 2 3 and the oil shaft support recess 116 provided in the valley portion 115 of the auxiliary machine base 110. An oil pump driven gear 133 and a water pump drive sprocket 142 are fixed to the oil pump shaft 1 31. Adjacent to the right crank case 23A, the oil pump shaft 131 is provided with an inner rotor 134 and an outer rotor 135 of the oil pump 130, and the outer side thereof is covered by an oil pump casing 136 fixed to the right crank case 23 3 . The oil pump casing 1 3 6 is screwed to the screw hole 1 0 0 provided in the right crank case 2 3 Β. The water pump shaft supporting the recess 1 0 1 through the end of the crankcase 2 3 ;; and the bearing 1 4 5 supporting the inner side of the through hole 1 1 7 supported by the water pump shaft at the end of the auxiliary machine base 1 1 0; The water shaft 1 4 1 is rotatably supported. A water pump driven sprocket 1 4 3 is fixed to the water shaft 1 4 1 . Here, the water pump driven sprocket 1 4 3 and the water pump drive sprocket 142 fixed to the aforementioned oil pump shaft 131 are hung with an endless loop 144. A water pump impeller 146 is fixed to the shaft end portion of the water pump shaft 141 which protrudes to the right, and the outer side thereof is covered with the water pump casing 120. Between the impeller 1 4 6 and the bearing 1 4 5 , a sealing material 148 is installed between the inner surface of the water pump shaft supporting through hole 1 1 7 of the auxiliary machine base 1 10 and the water pump shaft 1 4 1 The sealing material 147 and the water pump shaft of the water pump housing 1 220 and the auxiliary machine base 1 10 support the space surrounded by the inner surface of the through hole 1 1 7 to form a swirling flow path 126 (not shown) of the water pump. When the crankshaft 28 rotates, the oil pump drives the gear 1 3 2 and the driven wheel 13 3, and the oil recording shaft 1 3 1 rotates, and the inner rotor 134 in the oil casing 1 36 The function of the outer rotor 135, which is accumulated in the inner bottom of the crank case 23 15 312 ΧΡ / invention manual (supplement) / 94-04/93140858 1296671 lubricating oil flows from the oil flowing through the right crank case 2 3 B 9 8 (Fig. 6) is sucked in and supplied to the crankcase 23 or the cylinder head 21 from the oil outflow passage 9 9 (Fig. 6). When the oil fruit shaft 1 31 rotates, the water pump drive sprocket 143 driven by the endless chain 144 by the water pump drive 142 of the oil pump shaft 1 31, the shaft 1 41 will rotate, and the impeller 14 The action of 6 is that the cooling water that is cooled by the radiator 1 is sucked from the cooling water flow 1 2 4, 1 2 5 provided in the water pump casing 120, and passes through the spiral flow path 1 2 6 and the discharge water 1 2, and is discharged to the cylinder block 20 and the like from the discharge pipe 1 2 8 attached to the auxiliary machine base 110. An ACG stator 151 is mounted on the auxiliary machine base 110. An ACG rotor 150 is mounted on the crank, and when the crankshaft 28 is rotated around the stator 1 51, a self-current extraction line 1 5 3 (Fig. 5) can be generated by the interaction of the two. The current can be taken out. As described in detail above, in the above embodiment, the auxiliary machine (pump 140) and the actuating system (the pump shaft 13 having the function of the intermediate rotary shaft) can be supported by the same structure > 1 and gears, etc.: This can reduce the number of parts, and can easily assemble the auxiliary machine and power transmission I. It can also improve the accuracy of the distance between the shafts and reduce the driving noise. Also, because of the auxiliary machine base 1 10 The force transmission member (the oil pump shaft 1 3 1 having the intermediate rotary shaft function) is disposed on one side (the crankcase side), and the other side of the machine base 1 10 (the opposite side of the crank case) is disposed (pump 1 4 0) The main part), therefore, has a good rigidity balance from the power transmission member to the force, and can make the auxiliary machine installation structure lightweight 312XP / invention manual (supplement) /94-04/93140858 passage, and the sprocket The inlet passage of the pump 56 is fortunately converted by 2 8 . and l (Auxiliary force transmission, due to the system, the movement of the auxiliary auxiliary machine is reversed 0 16 1296671 Further, since the oil pump shaft 1 31 can be used as a power transmission Use the middle rotation axis, therefore, at the bottom of the auxiliary machine The seat can be equipped with a plurality of auxiliary machines, which can improve the space efficiency and miniaturize the internal combustion engine. [Simplified Schematic] FIG. 1 is a side view of a scooter type two-turbine vehicle 1 equipped with an internal combustion engine having the auxiliary machine mounting structure of the present invention. Fig. 2 is a longitudinal cross-sectional view of the power unit 6 of the two-wheeled vehicle viewed from the left. Fig. 3 is a cross-sectional development view of the cylinder axis, the crankshaft, the pulley shaft, and the gear shaft including the power unit 6. A longitudinal sectional view of the internal combustion engine 7 is viewed from the right side. Fig. 5 is a cross-sectional development view of the crankshaft 28, the oil pump shaft 1 31 and the water pump shaft 1 41 of Fig. 4 (Fig. 4 V-V sectional development view). Fig. 7 is a sectional view taken along the line VII-VII of Fig. 6. Fig. 8 is a right side view of the auxiliary machine base 110. Fig. 9 is a left side view of the auxiliary machine base 1 10 (the inner side of Fig. 8) Fig. 10 is a cross-sectional view taken along the line XX of Fig. 8. Fig. 11 is a right side view of the water pump casing 120. Fig. 12 is a left side view of the water pump casing 120 (the inner side of Fig. 11). Fig. 13 is a XIII- of Fig. 11. Fig. 14 is a sectional view taken along line XIV-XIV of Fig. 11. [Description of main components] 1 Speed Keda type two turbine Car 17 312XP / invention manual (supplement) /94-04/93140858 1296671 2 frame 3 head tube 4 front fork 5 front wheel 6 power unit 7 internal combustion engine 8 power transmission device 9 rear wheel support 10 rear wheel 11 rear suspension System 12 Article accommodating portion 13 Seat cushion 14 Foot pedal 15 Fuel tank 16 Body cover 20 Cylinder block 21 Cylinder head 21a, blocking surface 22 Cylinder head 23 Crank box 23A Left crank case 23B Right crank case 24 Cylinder hole 25 Piston
312XP/發明說明書(補件)/94-04/93140858 18 1296671 26 > 27 軸 承 28 曲 柄 軸 28a 左 側 曲 29 活 塞 銷 30 曲 柄 銷 3 1 連 桿 32 V 型 皮 33 齒 輪 減 40 右 變 速 41 . 左 變 速 42 後 車 輪 43 驅 動 滑 44 從 動 軸 45 離 心 離 46 從 動 滑 47 無 端 V 48、 5 1 小 齒 輪 49 中 間 軸 50、 53 齒 輪 52 車 軸 60 燃 燒 室 6 1 進 氣 口 6 1a 燃 燒 室 6 1b 外 側 開 柄臂 側開口 312XP/發明說明書(補件)/94-04/93140858 帶式無段變速機 速機 箱 箱 支持箱 輪 合器 輪 型皮帶312XP/Invention Manual (Repair)/94-04/93140858 18 1296671 26 > 27 Bearing 28 Crankshaft 28a Left side curve 29 Piston pin 30 Crank pin 3 1 Link 32 V-shaped leather 33 Gear minus 40 Right shift 41 . Left Speed shift 42 Rear wheel 43 Drive slip 44 Drive shaft 45 Centrifugal 46 Driven slide 47 Endless V 48, 5 1 Pinion 49 Intermediate shaft 50, 53 Gear 52 Axle 60 Combustion chamber 6 1 Intake port 6 1a Combustion chamber 6 1b Outside open handle arm side opening 312XP / invention manual (supplement) /94-04/93140858 belt type stepless speed machine chassis case support box wheel wheel belt
19 1296671 62 6 2a 62b 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 80a、 80b、 8 1 排氣口 燃燒室側開口 外側開口 進氣闊 排氣閥 進氣管 空氣濾清器 節流閥 燃料喷射閥 排氣管 消音器 閥彈簧 動閥室 動闊裝置 軸承 凸輪軸 進氣凸輪 排氣凸輪 進氣搖擺轴 排氣搖擺軸 進氣搖臂 81a 滑動部 8 1 b 擋接部 排氣搖臂 312XP/發明說明書(補件)/94-04/93140858 1296671 82 從 動 鏈 輪 83 驅 動 鏈 輪 84 傳 動 構 件 收 容 空 間 85 無 端 環 鏈 86 點 火 塞 87 左 右 曲 柄 箱 接 續 用 螺 絲孔（左曲柄箱） 88 密 封 材 料 (曲柄軸外眉 I ) 90 輔 機 底 座 安 裝 面 9 1 左 右 曲 柄 箱 接 續 螺 栓 92 左 右 曲 柄 箱 接 續 插 通 孔 93 曲 柄 軸 貫 通 孔 94 軸 承 2 7之支持部 95 油 泵 軸 支 持 凹 部 96 流 入 部 油 溝 97 流 出 部 油 溝 98 油 流 入 通 路 99 油 流 出 通 路 100 油 泵 殼 安 裝 用 螺 絲 孔 10 1 水 泵 軸 支 持 凹 部 102 輔 機 底 座 安 裝 用 螺 絲 孔 1 10 輔 機 底 座 110a 擋 接 面 110b 襯 墊 安 裝 溝 1 1 1〜 1 1 1 A 輔機底 ▲座 •安裝 .螺 :栓 插通孔 312XP/發明說明書(補件)/94-04/9314085819 1296671 62 6 2a 62b 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 80a, 80b, 8 1 Exhaust port combustor side opening outside opening intake wide exhaust valve intake pipe air filter Cleaner throttle valve fuel injection valve exhaust pipe silencer valve spring dynamic valve chamber dynamic device bearing camshaft intake cam exhaust cam intake swing shaft exhaust swing shaft intake rocker arm 81a sliding portion 8 1 b Exhaust rocker arm 312XP / invention manual (supplement) /94-04/93140858 1296671 82 driven sprocket 83 drive sprocket 84 transmission member accommodating space 85 endless chain 86 ignition plug 87 left and right crankcase connection screw hole ( Left crankcase) 88 Sealing material (crankshaft outer eyebrow I) 90 Auxiliary machine base mounting surface 9 1 Left and right crankcase connecting bolts 92 Left and right crankcase connecting through hole 93 Crankshaft through hole 94 Bearing 2 7 Supporting part 95 Oil pump shaft Support recess 96 inflow portion oil groove 97 outflow portion oil groove 98 oil inflow passage 99 Outflow passage 100 Oil pump casing mounting screw hole 10 1 Water pump shaft support recess 102 Auxiliary machine base mounting screw hole 1 10 Auxiliary machine base 110a Interlocking surface 110b Pad mounting groove 1 1 1~ 1 1 1 A Auxiliary machine bottom ▲ seat • Installation. Screw: bolt insertion hole 312XP / invention manual (supplement) /94-04/93140858
21 1296671 112 曲柄軸貫通孔 113 ACG定子安裝面 114 A C G定子安裝用螺絲孔 115 輪轂部 116 油泵軸支持凹部 117 水泵軸支持貫通孔 118 軸承支持部 119 水泵殼安裝面 1 20 水泵殼 12 0a 擔接面 120b 襯墊安裝溝 12 1' 1 2 1 A 水泵殼安裝用螺栓插通孔 1 22 水泵殼安裝用螺絲孔 1 23 長螺栓 12 4' 125 冷卻水流入口 1 26 漩渦形流路 1 26 A 漩渦形流路覆蓋部 1 2 6 B 漩渦形流路基底部 127 排出水通路 1 2 7 A 排出水通路覆蓋部 1 2 7 B 排出水通路基底部 1 28 排出管 1 30 油泵 13 1 油泵軸 2221 1296671 112 Crankshaft through hole 113 ACG stator mounting surface 114 ACG stator mounting screw hole 115 Hub portion 116 Oil pump shaft support recess 117 Pump shaft support through hole 118 Bearing support portion 119 Water pump housing mounting surface 1 20 Water pump housing 12 0a Face 120b Pad mounting groove 12 1' 1 2 1 A Water pump housing mounting bolt insertion hole 1 22 Water pump housing mounting screw hole 1 23 Long bolt 12 4' 125 Cooling water inlet 1 26 Swirling flow path 1 26 A vortex Shaped flow path cover 1 2 6 B vortex flow path base portion 127 discharge water passage 1 2 7 A discharge water passage cover portion 1 2 7 B discharge water passage base portion 1 28 discharge pipe 1 30 oil pump 13 1 oil pump shaft 22
312XP/發明說明書(補件)/94·04/93140858 1296671 1 32 油 泵 驅 動 齒 輪 133 油 泵 從 動 齒 輪 134 内 轉 子 1 35 外 轉 子 136 油 泵 殼 140 水 泵 141 水 泵 軸 142 水 泵 驅 動 鏈 輪 143 水 泵 從 動 鏈 輪 144 無 端 環 鏈 145 轴 承 146 葉 輪 147 密 封 材 料 (水泵軸外周） 1 50 AC 發 ‘電 機 15 1 定 子 1 52 螺 栓 153 電 流 取 出 線 1 54 轉 子 1 55 風 扇 1 56 散 熱 器 312XP/發明說明書(補件)/94-04/93140858312XP/Invention Manual (supplement)/94·04/93140858 1296671 1 32 Oil pump drive gear 133 Oil pump driven gear 134 Inner rotor 1 35 Outer rotor 136 Oil pump casing 140 Water pump 141 Water pump shaft 142 Water pump drive sprocket 143 Water pump driven chain Wheel 144 endless chain 145 bearing 146 impeller 147 sealing material (water pump shaft outer circumference) 1 50 AC hair 'motor 15 1 stator 1 52 bolt 153 current take-out line 1 54 rotor 1 55 fan 1 56 heat sink 312XP / invention manual (supplement )/94-04/93140858