200528628 九、發明說明： 【發明所屬之技術領域】 本發明係關於對機車中所搭載内燃機本體的散熱 裝構造。 【先前技術】 當在具有朝左右方向延伸曲軸的内燃機本體之曲 部外邊安裝散熱器的情況時，因為必須確保車身傾斜 散熱器與路面間的間隙，因而通常散熱器便安裝於較 曲軸的位置處。在為使散熱器通風方面，便在曲軸端 置著與曲軸一起進行旋轉的冷卻風扇。依上述，因為 器中心與冷卻風扇中心的上下位置錯開，因而必須形 空氣順暢的從散熱器流入冷卻風扇中的冷卻風通路。 習知在對内燃機本體的散熱器安裝構造方面，將兼 冷卻風通路構件的金屬製散熱器支撐構件安裝於曲柄 中，並支撐著散熱器，且使空氣順暢流動（例如參照專 獻1 )。 (專利文獻1 )曰本專利特公平6 - 8 1 8 9 8號公報（第2 【發明内容】 (發明所欲解決之問題） 因為散熱器將與内燃機一起搖晃，因此必須堅固的 於内燃機本體中。習知的散熱器安裝構造，係因為將 器利用金屬構件支撐，因此可堅固的安裝，但是因為 空氣通路的部分全部為金屬，因此重量將變重。本發 堅固的安裝散熱器，同時達空氣通路構件輕量化，俾 326\專利說明書(補件)\94-04\9314]094 6 器安 軸端 時在 高於 部設 散熱 成使 用為 軸箱 利文 圖）。 安裝 散熱 包圍 明係 達整 200528628 體有效的輕量化效果。 (解決問題之手段） 本發明係為解決上述課題而完成的，申請專利範圍 項發明係安裝散熱器至動力單元中内燃機本體之構造 動力單元係將汽缸與汽缸頭所構成的内燃機本體、收 轴的曲柄軸箱、及支撐著驅動輪的動力傳動箱形成 化，且可對車身搖晃自如地被支撐，其特徵在於：分 外具備有：散熱器支撐構件，其係安裝於曲柄軸箱上 包圍設置於曲軸一端之冷卻風扇的周圍，同時支撐著 向於冷卻風扇而配置的散熱器；以及通風導引構件， 在上述散熱器支撐構件的内部空間中，形成從上述散 至冷卻風扇之冷卻風通路。 申請專利範圍第2項發明，係如申請專利範圍第1 安裝散熱器至内燃機本體之構造，其中，上述散熱器 構件係具備有從包圍上述冷卻風扇的部分朝上方延伸 狀部；上述通風導引構件係在上述腕狀部所包圍的空 中形成冷卻風通路。 (發明效果） 在申請專利範圍第1項發明中，因為散熱器支撐構 通風導引構件屬於分開的個體，因此便將提昇與内燃 起搖晃的散熱器的配置自由度，且可達散熱器支撐構 剛性化、通風導引構件輕量化，整體輕量化的效果。 在申請專利範圍第2項發明中，因為利用散熱器支 件的上述腕狀部，便可保護著通風導引部，因而通風 326\專利說明書(補件)\94-04\93141094 7 第1 ，該 容曲 一體 別另 ，且 相對 其係 熱器 項之 支撐 的腕 間部 件與 機一 件兩 撐構 導引 200528628 構件並未必一定要使用高強度者，且可達輕量化效果。 【實施方式】 圖1所示係搭載著具有本發明散熱器安裝構造之内燃機 的速克達型機車1側視圖。此機車1係車體框架2前端一 體形成頭管3，在頭管3上左右旋轉自如的嵌裝著前叉4， 在前叉4下端旋轉自如的安裝著前輪5。在車體框架2後 半部安裝著可上下搖晃的動力單元6。此搖晃式動力單元6 係由搖臂型頂置汽門4衝程單汽缸水冷式内燃機7、動力 傳動裝置8、及後輪支撐部9 一體化構成的。後輪支撐部9 具備有後輪1 0。且，在車體框架2後半部與動力單元6後 半部之間介裝著後懸吊Π。在車體框架2後方上端設置物 品收納部1 2，並設置可關開自如的覆蓋著此物品收納部1 2 上端開口的椅墊1 3。在車身中央處的腳踏板1 4下方配設 著燃油槽1 5。車體框架2由車體蓋1 6覆蓋著。 圖2所示係從左邊觀看上述動力單元6的縱剖圖，圖3 所示係該動力單元6包含汽缸軸線、曲軸、滑輪軸、齒輪 軸在内之面的截面展開圖。此動力單元的内燃機7係由： 汽缸體2 0、汽缸頭2 1、汽缸頭蓋2 2、及曲柄軸箱2 3所構 成，在朝略水平方向的汽缸體2 0前端結合著汽缸頭2 1， 在汽缸頭2 1前端結合著汽缸頭蓋2 2，在汽缸體2 0後端結 合著曲柄軸箱2 3。曲柄軸箱2 3係由左右曲柄軸箱2 3 A、2 3 B 構成。 圖2、圖3中，在汽缸體2 0内所形成的汽缸孔2 4中， 可滑動的嵌裝著活塞2 5，在左右曲柄軸箱2 3 A、2 3 B所保 8 326\專利說明書(補件)\94-04\9314 ] 094 200528628 持的軸承2 6、2 7上，可能旋轉的枢支著曲軸2 8。在活塞 2 5與曲軸2 8上，分別透過活塞銷2 9與曲柄銷3 0，可旋轉 的樞接著連桿3 1二端，形成若活塞2 5進行往返運動，曲 軸2 8便成為被旋轉驅動的狀態。 動力單元6的動力傳動裝置8係由V皮帶式無段變速機 3 2與齒輪減速機3 3所構成，動力傳動裝置8本體箱係由 右變速箱4 0、左變速箱41、及後輪支撐箱4 2所構成。右 變速箱4 0係與左曲柄軸箱2 3 A —體製成。左變速箱41結 合於右變速箱4 0，後輪支撐箱4 2結合於右變速箱4 0。 V皮帶式無段變速機 3 2的驅動軸係曲軸 2 8，在其上設 有V皮帶式無段變速機3 2的驅動滑輪4 3。V皮帶式無段變 速機3 2的從動軸4 4係旋轉自如的支撐著右變速箱4 0與後 輪支撐箱4 2，在此從動軸4 4上透過離心式離合器4 5設置 著V皮帶式無段變速機3 2的從動滑輪4 6。在驅動滑輪4 3 與從動滑輪4 6上跨設著V皮帶環4 7。V皮帶式無段變速機 3 2係曲軸2 8若旋轉超過既定旋轉數，離心式離合器4 5便 形成連接狀態，從動軸4 4將開始進行旋轉。若曲軸2 8旋 轉數更增加，便利用驅動滑輪4 3的離心力應用機構，形成 從動軸4 4旋轉數較多於曲軸2 8旋轉數的狀態。 齒輪減速機 3 3係由 3根旋轉轴上所設置的齒輪組構 成。第1軸係由右變速箱4 0與後輪支撐箱4 2所支撐的V 皮帶式無段變速機3 2之從動軸4 4，形成小齒輪4 8。第2 軸係由右變速箱4 0與後輪支撐箱4 2旋轉自如的支撐著的 中間軸4 9，並一體嵌裝著咬合上述從動軸小齒輪4 8的齒 3 26\專利說明書(補件)\94-04\93141094 9 200528628 輪 5 0，且形成相鄰接的小齒輪5 1。第3軸係由右變速箱 4 0與後輪支撐箱4 2旋轉自如支撐的後輪軸5 2，嵌裝著咬 合上述中間軸小齒輪5 1的齒輪5 3。在後輪軸5 2上一體固 定著後輪1 0。藉此構造，從動軸4 4的轉矩便將經由小齒 輪4 8、齒輪5 0、中間軸4 9、小齒輪51及齒輪5 3，傳動給 後輪軸5 2，因此後輪軸5 2便形成相對於從動軸4 4大幅減 速的狀態。 圖 4所示係從左邊觀看内燃機 7前半部的縱剖圖。圖 中，箭頭F係指内燃機前方，箭頭Up係指上方。在朝向汽 缸體2 0上所形成汽缸孔2 4前端部的汽缸頭2 1底面，形成 燃燒室6 0。在此燃燒室中如圖3所示，火星塞8 6從内燃 機左側在汽缸頭2 1中安裝成其前端電極靠近燃燒室6 0的 狀態。圖4中，在汽缸頭21上方形成進氣口 61，在汽缸 頭2 1下方形成排氣口 6 2。對進氣口 6 1之燃燒室側開口 6 1 a 進行關開的吸氣閥6 3、與對排氣口 6 2之燃燒室側開口 6 2 a 進行關開的排氣閥6 4係分別滑動自如的嵌裝於汽缸頭2 1 上。 進氣口 6 1的外側開口 6 1 b上連接著吸氣管6 5下游端。 在此吸氣管 6 5上，由上游側起依序連接著空氣濾清器 6 6 (圖2 )、節流閥6 7、及燃油噴射閥6 8。在排氣口 6 2之 外側開口 6 2 b上連接著排氣管6 9上游端，排氣管6 9下游 端連接於消音器7 0 (圖2、圖3)。而且，利用汽門彈簧7 1 被賦予朝開閥方向彈力的上述吸氣閥6 3與排氣閥6 4，將 形成利用由汽缸頭2 1與汽缸頭蓋2 2所形成閥動室7 2内配 10 326\專利說明書(補件)\94-04\93141094 200528628 置的閥動裝置7 3，進行關開驅動狀態。 圖4中，在位於由吸氣閥6 3與排氣閥6 4所包夾的V狀 空間内，透過左右1對軸承7 4 (圖3 )，旋轉自如的樞支著 朝左右水平方向的1根凸輪軸7 5 (圖3、圖4)。在此凸輪 軸7 5上一體形成吸氣凸輪7 6與排氣凸輪7 7。在較凸輪軸 75更靠前方且上方的位置處，於汽缸頭21上軸架著吸氣 搖臂7 8，在吸氣搖軸7 8下方位置處，於汽缸頭2 1上軸架 著排氣搖轴7 9 ’在此吸氣搖轴7 8與排氣搖轴7 9上’分別 搖晃自如的樞支著吸氣搖臂8 0與排氣搖臂81。在此吸氣 搖臂8 0與排氣搖臂8 1之一端設有滑動部8 0 a、8 1 a，而在 吸氣搖臂8 0與排氣搖臂8 1另一端，則設有抵接於吸氣閥 6 3與排氣閥6 4的桿頂端之抵接部8 0 b、8 1 b。 在凸輪軸75左端部一體設有從動鏈輪82(圖3)。在曲 轴2 8的左側曲柄臂2 8 a與上述驅動滑輪4 3之間，一體嵌 裝著具有上述從動鏈輪82 —半齒數的主動鏈輪83(圖3)。 在汽缸體2 0與汽缸頭2 1的左側部，設有將上述主動鏈輪 8 3與從動鏈輪8 2連繫的傳動構件收納空間8 4，在此空間 中，於上述主動鏈輪83與從動鏈輪82上架設著環鏈85。 以上係屬閥動裝置7 3的構造。若曲軸2 8旋轉，凸輪軸7 5 便依一半的旋轉數被旋轉驅動，並依既定時序利用吸氣凸 輪7 6與排氣凸輪7 7，對吸氣闊6 3與排氣閥6 4進行關開。 圖5所示係從右邊觀看到上述内燃機7右曲柄軸箱2 3 B 附近的外觀側視圖。右曲柄軸箱2 3 B上，從右邊起依序層 狀安裝著輔助基座1 1 0、水泵殼1 2 0、散熱器支撐構件1 6 0、 11 326\專利說明書(補件)\94-04\93141094 200528628 通風導引構件1 7 0、散熱器1 8 0、及散熱器蓋1 9 0。 圖6所示係去除該等附加物，右曲柄軸箱2 3 Β右側視的 輔助基座安裝面9 0。且亦顯示經摘除右曲柄軸箱2 3 Β周圍 部，主曲柄軸箱2 3 Α相對於右曲柄軸箱2 3 Β的抵接面。此 外，汽缸體2 0係顯示剖面狀態。在由輔助基座安裝面9 0 所包圍的部分中，圖示著曲軸2 8、油聚軸1 3 1、水泵軸1 4 1、 及、相關該等軸的驅動機構。 圖7所示係圖6的V I I - V I I線剖面圖。箭頭R係指右邊。 此係從略下方觀看利用曲軸旋轉而驅動之輔助類旋轉軸的 關聯剖視圖，係由圖5所示之散熱器支撐構件1 6 0、通風 導引構件1 7 0、散熱器1 8 0、及散熱器蓋1 9 0，即散熱器安 裝構造構件所覆蓋部分的輔助類構造。在針對散熱器安裝 構造進行描述之前，先針對由散熱器安裝構件所隱藏的輔 助類進行説明。 圖6中，在曲軸2 8上鼓裝著油泵驅動齒輪1 3 2，在油泵 軸1 3 1上嵌裝著咬合於上述油泵驅動齒輪1 3 2的油泵從動 齒輪1 3 3。此外，在油泵軸1 3 1上敌裝著水泵驅動鍵輪1 4 2， 在水泵轴1 4 1上嵌裝著水泵從動鏈輪1 4 3，在該等二個鏈 輪上掛繞著環鏈 1 4 4。若曲軸 2 8 進行旋轉，便利用齒輪 1 3 2、1 3 3而旋轉驅動油泵軸1 3 1，而且更利用鏈輪1 4 2、 1 4 3與環鍵1 4 4旋轉驅動水泵軸1 4 1。在上述構造中，油泵 軸1 3 1亦合併具有將動力傳動給水泵軸1 4 1的動力傳動用 中間旋轉軸機能。 圖7中，左右曲柄軸箱2 3 A、2 3 B係利用螺栓9 1結合在 12 326\專利說明書(補件)\94-04\93141094 200528628 一起。左右曲柄軸箱2 3 A、2 3 B的結合係將螺栓9 1插通於 右曲柄軸箱2 3 B的連接螺栓插通孔9 2中，並鎖入左曲柄軸 箱2 3 A的連接螺栓用螺孔8 7中。曲軸2 8係透過軸承2 6、 2 7，由左右曲柄軸箱2 3 A、2 3 B可旋轉的支撐著。 曲軸2 8在鄰接右側軸承2 7的部分處，嵌裝著油泵驅動 齒輪1 3 2。在右曲柄軸箱2 3 B右側安裝著輔助基座1 1 0。在 輔助基座11 0之包圍曲軸28之筒狀突出部的ACG定子安裝 面上，利用螺栓 1 5 2安裝著 A C G (交流發電機）1 5 0定子 1 5 1。在定子1 5 1上設置電流取出線1 5 3。在貫通輔助基座 1 1 0之貫通孔1 1 2的曲軸2 8的端部，安裝著A C發電機1 5 0 轉子1 5 4，在該轉子1 5 4端面螺鎖著冷卻風扇1 5 5。此冷卻 風扇1 5 5係對後述散熱器1 8 0進行通風。在上述輔助基座 1 1 0的貫通孔1 1 2與曲軸2 8之間，介裝著密封材8 8。 圖8所示係右曲柄軸箱23B右視圖，圖9所示係圖8之 I X - I X線剖面圖。圖8、圖9中，上述左右曲柄軸箱連接螺 栓9 1係插通於插通孔9 2中。在右曲柄軸箱2 3 B的右側面， 形成輔助基座安裝面90。在由輔助基座安裝面90所包圍 部分的其中一端部，設置曲軸貫通孔9 3。曲軸2 8便通過 此貫通孔9 3突出於曲柄軸箱右邊。在上述貫通孔9 3中設 置著軸承2 7的支撐部9 4 (圖9 )。 在由輔助基座安裝面 90所包圍部分的中央處，形成油 泵轴支撐凹部 9 5，並包圍其形成流入部油溝9 6與流出部 油溝9 7。朝向該等油溝9 6、9 7並從右曲柄軸箱2 3 B周圍 部，穿設油流入通路 9 8與油流出通路9 9 (圖8 )。在油溝 13 326\專利說明書(補件)\94-04\93141094 200528628 9 6、9 7附近設置油泵殼安裝用螺孔1 0 0。 在由輔助基座安裝面 9 0所包圍部分的另一端部，形成 水泵轴支樓凹部1 0 1。在輔助基座安裝面9 0的周圍部，設 有供後述輔助基座1 1 0安裝螺栓螺鎖入用的輔助基座安裝 用螺孔1 0 2。 圖1 0所示係輔助基座 1 1 0右視圖，圖1 1所示係圖1 0 之 X I - X I線剖面圖。在輔助基座 1 1 0的左面周圍部（圖 1 1 )，設有抵接於右曲柄軸箱2 3 Β之輔助基座安裝面9 0的 抵接面 110a，在此面上形成襯墊安裝溝 1 1 0 b。輔助基座 1 1 0係使上述抵接面1 1 0 a抵接於右曲柄軸箱2 3 B的安裝面 90，並將插通於其周圍部的輔助基座安裝螺栓插通孔 1 1 1、1 1 1 A中之螺栓，螺鎖入右曲柄軸箱2 3 B的輔助基座 安裝用螺孔1 0 2中而安裝著。螺栓插通孔Π 1 A係後述水泵 箱安裝螺栓所插通的插通孔。 在輔助基座1 1 0的一端設置曲軸貫通孔1 1 2，在其周圍 部設有 ACG定子安裝面113與 3個 ACG定子安裝用螺孔 1 1 4。A C G定子安裝用螺栓1 5 2 (圖7 )便鎖入此螺孔11 4中。 在輔助基座1 1 0的中央部設有轂部1 1 5。在轂部1 1 5的 左面穿設著油泵軸支撐凹部1 1 6 (圖1 1 )。油泵軸1 3 1係由 右曲柄軸箱2 3 B的油泵軸支撐凹部9 5 (圖8、圖9 )、與上 述轂部1 1 5上所設置的油泵軸支撐凹部1 1 6，可旋轉的支 撐著。 在輔助基座1 1 0的另一端設置水泵軸支撐貫通孔Π 7。 水泵軸 1 4 1 係透過右曲柄軸箱 2 3 B 的水泵軸支撐凹部 14 326\專利說明書(補件)\94-04\93141094 200528628 101、與嵌裝於上述貫通孔117之軸承支樓部118(圖n) 上的軸承1 4 5 (圖7 )，而可旋轉的支撐著。在輔助基座1 1 0 端部形成水泵殼安裝面1 1 9。在由該安裝面1 1 9所包圍部 分的端部安裝著水泵的喷出管128。 圖1 2所示係水泵殼1 2 0右視圖，圖1 3所示係圖12之 X I I I - X I I I線剖面圖，圖1 4所示係圖1 2之x 1 V — X 1 V線剖 面圖。在水泵殼1 2 0左面的周圍部，設有抵接於輔助基座 110之水泵殼安裝面119的抵接面120a’在此面上形成概 墊安裝溝120b(圖13、圖14)。在水泵殼120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之際’使上 述抵接面120a抵接於輔助基座11〇的安裝面119 ’並在其 中的2個螺栓插通孔1 2 1中插通短螺栓’並鎖入在對應於 輔助基座1 1 0位置處所設置的水泵殼安裝用螺孔1 2 2中’ 俾將水泵殼1 2 0固定於輔助基座1 1 〇上。在螺栓插通孔 121A中插通著長螺栓123(圖7)，更插通於輔助基座110 之對應位置處的螺栓插通孔1 1 1 A，然後鎖入於右曲柄軸箱 2 3 B之對應位置處的螺孔1 0 2，便將水泵殼1 2 0、輔助基座 1 1 0、及右曲柄軸箱2 3 B —體固定。 在水泵殼1 2 0頂部設置大小2個冷卻水流入口 1 2 4、 1 2 5。此外.，在下端設置連接於漩渦流路蓋部1 2 6 A的噴水 通路蓋部1 2 7 A。此將與輔助基座1 1 〇的漩渦流路基座部 126B、及喷水通路蓋127B(圖10)形成配對，並各自形成旋 渦流路1 2 6與噴水通路1 2 7。喷水係經由輔助基座1 1 0上 所安裝的喷出管128(圖10、圖11)，輸送給汽缸體20。 326\專利說明書(補件)\94·〇4\93141094 15 200528628 圖7中，利用右曲柄軸箱2 3 B之油泵軸支撐凹部9 5、與 輔助基座 1 1 0 之轂部 1 1 5 上所設置的油泵軸支撐凹部 1 1 6，可旋轉的支撐著油泵軸1 3 1。油泵軸1 3 1上設有油泵 1 3 0的内轉子1 3 4與外轉子1 3 5，在其外側覆蓋著右曲柄軸 箱2 3 B所固定的油泵殼1 3 6。油泵殼1 3 6係螺鎖於右曲柄 軸箱2 3 B上所設置的螺孔1 0 0 (圖8 )上而安裝著。 透過右曲柄軸箱2 3 B端部的水泵軸支撐凹部1 0 1、與在 輔助基座1 1 0端部的水泵軸支撐貫通孔1 1 7内側所保持的 軸承1 4 5，可旋轉的支撐著水泵軸1 4 1。在水泵軸1 4 1朝右 邊突出的軸端部，固定著水泵葉輪 1 4 6，並在其外側覆蓋 著水泵殼1 2 0。在葉輪1 4 6與軸承1 4 5之間，於輔助基座 1 1 0的水泵軸支撐貫通孔1 1 7内面與水泵軸1 4 1之間安裝 著密封材147，在由該密封材147、水泵殼120、及輔助基 座1 1 0的水泵軸支撐貫通孔1 1 7内面所包圍的空間中，形 成水泵的璇渦流路1 2 6。 若曲軸 2 8進行旋轉，便利用油泵驅動齒輪 1 3 2與該從 動齒輪1 3 3的咬合，而旋轉著油泵軸1 3 1，利用油泵殼1 3 6 中的内轉子134與外轉子135的作用，將曲柄軸箱23内底 部所滯留的潤滑油，從穿設於右曲柄軸箱2 3 B内的油流入 通路98(圖8)吸入，並從油流出通路99(圖8)噴出，再供 應給曲柄軸箱2 3、汽缸頭21。 若油泵軸1 3 1進行旋轉，便利用從油泵軸1 3 1的水泵驅 動鏈輪142透過環鏈144而驅動的水泵從動鏈輪143，將 水泵軸1 4 1旋轉，俾利用葉輪1 4 6的作用，使經散熱器1 8 0 16 326\專利說明書(補件)\94-04\93141094 200528628 冷卻過的迴流冷卻水，從水果殼1 2 0上所設置的冷卻 入口 1 2 4、1 2 5吸入，並通過漩渦流路1 2 6與喷水通路 再從輔助基座1 1 0上所安裝的噴出管1 2 8喷出，並再 應給汽缸體2 0等。 在輔助基座110上安裝著ACG定子151。在曲軸28 裝著ACG轉子152，並圍繞上述定子151周圍進行旋 若曲軸2 8進行旋轉，便利用上述二者的相互作用而發 並從電流取出線1 5 3 (圖7 )取出電流。 其次，針對散熱器的安裝構造進行說明。圖 1 5所 圖6之X V - X V線剖面圖。此圖係將右曲柄軸箱與其所 部分，朝大致錯直的横截面切剖，並從後方觀看到的圖 圖中，在右曲柄軸箱2 3 Β與輔助基座1 1 0上，層狀安 作為散熱器安裝構造關聯構件的散熱器支撐構件 160 風導引構件1 7 0、散熱器1 8 0、及散熱器蓋1 9 0。 .圖1 6所示係散熱器支撐構件1 6 0右視圖，圖1 7所 圖1 6之X V I I - X V I I線剖面圖。此構件係鋁合金製構件 安裝於右曲柄軸箱23Β上，包圍著曲軸28 —端所設置 卻風扇1 5 5周圍，且支撐著相對向於冷卻風扇1 5 5配 散熱器 1 8 0。本體部係尺寸較短的筒狀構件，中央為 的冷卻風通路1 6 1。在筒狀部1 6 2上設置多數脫氣孔1 此係供將經冷卻風扇1 5 5所導入的空氣，從冷卻風扇 周圍朝外部釋放出的洞。在筒狀部1 6 2周圍形成複數 部。並其上設置供將散熱器支撐構件1 6 0本身安裝於 柄軸箱上的螺栓插通孔、或供將其他構件安裝於散熱 32 6\專利說明書(補件)\94-04\93141094 17 水流 127, 度供 上安 轉。 電， 示係 附加 示。 裝著 、通 示係 ，並 的冷 置的 較大 63 ° 155 突出 右曲 器支 200528628 撐構件1 6 0上的螺栓鎖入用螺孔。 在包括本圖在内的下述說明圖式中，針對供安裝構件用 的螺栓、螺栓插通孔、螺孔，係根據下述規則表示。 (1 )供將散熱器支撐構件 1 6 0安裝於其他構件上的螺栓 稱為「A」，將散熱器支撐構件1 6 0本身所設置螺栓Α的插 通孔表示為「A 1」，將供鎖入螺栓A用之在其他構件上所設 置的螺孔表示為「A 2」。 (2 )供將通風導引構件 1 7 0安裝於其他構件上的螺栓稱 為「B」，將通風導引構件1 7 0本身所設置螺栓B的插通孔 表示為「B 1」，將供鎖入螺栓B用之在其他構件上所設置的 螺孔表示為「B 2」。 (3 )供將散熱器1 8 0安裝於其他構件上的螺栓稱為「C」， 將散熱器1 8 0本身所設置螺栓C的插通孔表示為「C 1」，將 供鎖入螺栓 C 用之在其他構件上所設置的螺孔表示為 r C2」° (4 )供將散熱器蓋 1 9 0安裝於其他構件上的螺栓稱為 「D」，將散熱器蓋1 9 0本身所設置螺栓D的插通孔表示為 「D 1」，將供鎖入螺栓D用之在其他構件上所設置的螺孔表 示為「D 2」。 在散熱器支撐構件1 6 0上設置有：4個散熱器支撐構件 1 6 0本身的安裝螺栓Α的插通孔A 1，而其他構件的安裝用 螺孔係設置3個通風導引安裝螺栓鎖入用螺孔B2，4個散 熱器安裝螺栓鎖入用螺孔C 2。上述散熱器安裝螺栓鎖入用 螺？L C 2係設置於在筒狀部1 6 2上端的前後朝上方傾斜的腕 18 326\專利說明書(補件)\94-04\93141094 200528628 狀部1 6 4，與筒狀部1 6 2前後的突出部1 6 5上。即，.散熱 器係利用該等腕構件1 6 4與突出部所支撐著。通風導引安 裝螺栓鎖入用螺孔B 2中的 2個係設置於上述腕狀部1 6 4 上，其餘的1個則設置於朝筒狀部1 6 2下端突出的部分處。 即，通風導引構件1 7 0係在散熱器支撐構件1 6 0與散熱器 1 8 0之間，並安裝成被上端腕狀部1 6 4與前後突出部1 6 5 所包圍的狀態。為鎖入散熱器支撐構件1 6 0安裝螺栓A， 其他構件上所設置的螺孔 A 2便在圖8的右曲柄軸箱 2 3 B 上設置3個，在圖1 0的輔助基座1 1 0上設置1個。 圖1 8所示係通風導引構件1 7 0右視圖，圖1 9所示係圖 1 8的X I X - X I X線剖面圖。散熱器1 8 0與冷卻風扇1 5 5的位 置係朝上下方向錯開（圖1 5 )。此構件在散熱器1 8 0與冷卻 風扇1 5 5之間形成通風路，並將通過散熱器1 8 0的空氣順 暢的導引於冷卻風扇1 5 5。通風導引構件1 7 0係由中央部 的略大於半圓形的冷卻風通路 171、上端的上緣為方形而 下緣為半圓凹形的冷卻風導板 172、以及下端的略小於半 圓形開口部封閉用之封閉板1 7 3所形成。此構件係摻入玻 璃纖維的合成樹脂製構件。 在通風導引構件1 7 0中，設置3個通風導引構件1 7 0本 身的安裝螺栓B的插通孔B 1，而其他構件的安裝用螺孔則 在周圍的突出部1 7 4上設置3個散熱器蓋安裝螺栓用螺孔 D 2。供鎖入通風導引構件1 7 0本身的安裝螺栓B用之螺孔 B 2係在圖1 6的散熱器支撐構件1 6 0上設置3個。 圖2 0所示係散熱器1 8 0右視圖，圖2 1所示係圖2 0之 19 326\專利說明書(補件)\94-04\93141094 200528628 XX I -XXI箭頭方向視圖。此構件係在上端具有上槽1 8 下端具有下槽1 8 2，並利用多數水管1 8 3將二者連接 從上端朝下端流入冷卻水，並利用由冷卻風扇1 5 5所 的空氣流，對内部冷卻水進行冷卻的裝置。上槽1 8 1 冷卻水導入口 1 8 4，下槽1 8 2設有冷卻水排出口 1 8 5。1 上槽1 8 1設有具蓋體的冷卻水補給口 1 8 6、及剩餘水 口 1 8 6 a 〇 散熱器下槽1 8 2的冷卻水排出口 1 8 5、與水泵殼1 冷卻水流入口 1 2 4係利用水管而連結，俾從散熱器1 水泵1 4 0流入冷卻水。散熱器1 8 0的冷卻水排出口 ] 與水泵1 4 0的冷卻水流入口 1 2 4係如圖5所示，位於 近的位置處。圖5中並未圖示連結用水管。 散熱器1 8 0中散熱器1 8 0本身的安裝螺栓C的插 C 1，係在前後框體1 8 7上所設置之突出部1 8 8中分別 1個，總計設有4個，並未設置其他構件的安裝用螺 供鎖入散熱器1 8 0本身之安裝螺栓C用的的螺孔C 2， 圖1 6的散熱器支撐構件1 6 0腕狀部1 6 4、與突出部上 計設置4個。 圖2 2所示係散熱器蓋1 9 0右視圖，圖2 3所示係 的X X I I I - X X I I I線剖面圖。此係具有格子狀通風部1 構件，屬於供保護散熱器1 8 0用的構件。 在散熱器蓋1 9 0周圍部上，設有3個散熱器蓋1 9 0 之安裝螺栓D的插通孔D 1。因為在散熱器蓋1 9 0右側 安裝其他構件，因而並未設置其他構件的安裝用螺孔 326\專利說明書(補件)\94-04\93141094 20 1，在 ，俾 導入 設有 而且， 排出 20的 80朝 85 ' 相靠 通孔 設置 ?L 。 係在 .，總 圖22 91的 本身 並未 。供 200528628 鎖入散熱器蓋1 9 0本身之安裝螺栓D用的螺孔D 2，係在圖 1 8所示通風導引構件1 7 0周圍的突出部1 7 4上設置3個。 若將上述各構件的安裝螺栓 A、B、C、D —般性的統稱 為「X」，對應根據上述表示規則所附的圖示符號，將螺栓 X插通於上述各構件上所設置的安裝螺栓插通孔X 1中，並 在安裝對象構件上所設置的螺栓鎖入用螺孔X 2中，鎖入上 述螺栓X前端並固定，藉此便將上述4個構件、散熱器支 撐構件1 6 0、通風導引構件1 7 0、散熱器1 8 0、及散熱器蓋 1 9 0，安裝於右曲柄軸箱2 3 B與輔助基座1 1 0上，且可依上 述構件順序相互安裝。 圖2 4所示係散熱器支撐構件1 6 0與通風導引構件1 7 0 的立體示意圖，係圖示著相互離開的狀態。在散熱器支撐 構件1 6 0周圍，設有4個供將散熱器支撐構件1 6 0本身安 裝於其他構件用的螺栓插通孔A 1。在散熱器支撐構件1 6 0 上，於上端設有2條腕狀部1 6 4且在前後設有2條突出部 1 6 5，並分別設有供安裝散熱器1 8 0用的安裝螺栓鎖入用螺 孔C2。 在通風導引構件1 7 0上，設有3個供將通風導引構件1 7 0 本身安裝於散熱器支撐構件1 6 0用的螺栓插通孔B 1。此螺 栓的鎖入用螺孔B 2係設於散熱器支撐構件1 6 0上。在通風 導引構件1 7 0周圍設置3個周圍突出部1 7 4，且分別設有 散熱器蓋安裝螺栓鎖入用螺孔D2。 圖2 5所示係上述散熱器支撐構件1 6 0與通風導引構件 1 7 0重疊於連接位置狀態的立體示意圖。散熱器1 8 0安裝 21 326\專利說明書(補件)\94-04\93141094 200528628 用螺孔C 2、散熱器蓋1 9 0安裝用螺孔D 2均露出於通風導 引構件1 7 0的右邊外周，形成可安裝散熱器1 8 0與散熱器 蓋1 9 0的位置。 圖2 6所示係内燃機前半部的立體示意圖，圖2 7所示係 從上方觀看内燃機前半部的圖。該等圖係圖示著散熱器支 撐構件1 6 0、通風導引構件1 7 0、散熱器1 8 0、及散熱器蓋 1 9 0位於相互連接的位置。圖中並未圖示該等構件的安裝 螺栓。而且，圖中係圖示上述散熱器 1 8 0安裝用螺孔 C 2 其中一個係鄰接於散熱器1 8 0上所設置散熱器安裝螺栓插 通孔C1中之一，及上述散熱器蓋190安裝用螺孔D2其中 一個係鄰接於散熱器蓋安裝螺栓插通孔D 1中之一的狀態。 如上所詳述，本實施形態係因為散熱器支撐構件 160、 通風導引構件1 7 0屬於分開的個體，因此藉由要求強度的 散熱器支撐構件1 6 0使用高剛性材料，而通風導引構件1 7 0 則採用輕量材料，便可降低全體的重量。此外，因為可在 未考慮通風導引構件1 7 0重量增加的前提下，設計散熱器 支撐構件1 6 0形狀，所以可提升散熱器1 8 0的配置自由度。 例如，散熱器支撐構件1 6 0採用鋁合金，並將通風導引構 件1 7 0設為輕量的合成樹脂，便可兼顧確保著懸吊且與内 燃機一起進行搖晃的散熱器1 8 0支撐部之剛性與輕量化。 再者，因為通風導引構件1 7 0位於散熱器支撐構件1 6 0 與散熱器1 8 0之間，且利用散熱器支撐構件1 6 0所設置的 腕狀部1 6 4與突出部1 6 5，而保護著周圍，因此未必需要 使用高強度材料，所以可達輕量化。此外，藉由上述腕狀 22 326\專利說明書(補件)\94-04\93141094 200528628 部1 6 4與突出1 6 5，因為可將散熱器支撐於較曲軸更上 方處，因而可確保排氣管的配置空間，且可確保車輛的傾 斜角。 【圖式簡單說明】 圖1為搭載著具本發明散熱器安裝構造之内燃機的速克 達型機車1側視圖。 圖2為從左邊觀看上述機車1之動力單元6的縱剖圖。 圖3為該動力單元6包含汽缸軸線、曲軸、滑輪軸、齒 輪軸在内之面的截面展開圖。 圖4為從左邊觀看内燃機7前端的縱剖圖。 圖5為從右邊觀看内燃機7之右曲柄軸箱2 3 B附近的外 觀側視圖。 圖6為右曲柄軸箱2 3 B的輔助基座安裝面9 0的示意圖。 圖7為圖6的V I I _ V I I線剖面圖。 圖8為右曲柄轴箱2 3 B的右視圖。 圖9為圖8的I X - I X線剖面圖。 圖1 0為輔助基座1 1 0的右視圖。 圖1 1為圖1 0的X I - X I線剖面圖。 圖1 2為水泵殼1 2 0的右視圖。 圖1 3為圖1 2的X I I I - X I I I線剖面圖。 圖1 4為圖1 2的X I V - X I V線剖面圖。 圖1 5為圖6的X V - X V線剖面圖。 圖1 6為散熱器支撐構件1 6 0的右視圖。 圖1 7為圖1 6的X V I I - X V I I線剖面圖。 23 326\專利說明書(補件)\94-04\93141094 200528628 圖1 8為通風導引構件1 7 0的右視圖。 圖1 9為圖1 8的X I X - X I X線剖面圖。 圖2 0為散熱器1 8 0的右視圖。 圖21為圖20的ΧΧΙ-ΧΧΙ箭頭方向的視圖。 圖2 2為散熱器蓋1 9 0的右視圖。 圖2 3為圖2 2的X X I I I - X X I I I線剖面圖。200528628 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a heat dissipation structure for an internal combustion engine body mounted in a locomotive. [Prior Art] When a radiator is installed outside the curved portion of an internal combustion engine body that has a crankshaft extending in the left-right direction, the clearance between the radiator and the road surface must be ensured, so the radiator is usually installed at a position closer to the crankshaft Office. To ventilate the radiator, a cooling fan that rotates with the crankshaft is placed on the crankshaft end. According to the above, because the upper and lower positions of the center of the radiator and the center of the cooling fan are staggered, it is necessary to form a cooling air passage from the radiator to the cooling fan smoothly. In terms of a radiator mounting structure for an internal combustion engine body, it is known that a metal radiator supporting member that also serves as a cooling air passage member is installed in a crank, supports the radiator, and allows air to flow smoothly (for example, refer to Patent 1). (Patent Document 1) Japanese Patent Publication No. 6-8 1 8 9 8 (Second Summary of the Invention) (Problems to be Solved by the Invention) Since the radiator will sway together with the internal combustion engine, it must be rigidly attached to the internal combustion engine body. Medium. The conventional heat sink installation structure is supported by a metal member, so it can be sturdy installed. However, because all parts of the air passage are made of metal, the weight will be heavy. The radiator is ruggedly installed while The air passage components are lighter, 俾 326 \ Patent Specification (Supplement) \ 94-04 \ 9314] 094 6 When the shaft end of the device is installed, the heat is set at the upper part to dissipate heat for use as a shaft box. Installation Cooling Enveloping Ming Department Daquan 200528628 The effective lightweight effect. (Means for solving the problem) The present invention is completed to solve the above-mentioned problems. The scope of the patent application for the invention is to install the radiator to the internal combustion engine body structure of the power unit. The crankshaft case and the power transmission case supporting the drive wheels are formed and can be supported freely on the vehicle body. It is characterized by a radiator support member, which is mounted on the crankcase and surrounds it. A cooling fan disposed at one end of the crankshaft, while supporting a radiator disposed toward the cooling fan; and a ventilation guide member, in the internal space of the radiator supporting member, forming cooling air from the cooling fan to the cooling fan path. The second invention in the scope of patent application is the structure for attaching a radiator to the internal combustion engine body as in the first scope of the patent application, wherein the radiator member is provided with a portion extending upward from a portion surrounding the cooling fan; the ventilation guide The member forms a cooling air passage in the air surrounded by the wrist portion. (Effect of the invention) In the first invention of the scope of the patent application, since the ventilation guide member of the radiator supporting structure belongs to a separate entity, the degree of freedom in disposing the radiator shaking with the internal combustion will be improved, and the radiator support can be reached. The structure is rigid, the ventilation guide member is lightweight, and the overall weight is reduced. In the second invention in the scope of patent application, since the above-mentioned wrist portion of the radiator support can protect the ventilation guide, ventilation 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 7 This piece of music is different, and compared to the support of its thermal system, the inter-wrist parts and the machine are supported by a two-support structure. 200528628 The components do not necessarily need to be high-strength, and can achieve lightweight effects. [Embodiment] Fig. 1 is a side view of a speed locomotive 1 equipped with an internal combustion engine having a radiator mounting structure according to the present invention. The front end of the body frame 2 of this locomotive 1 forms a head tube 3 as a whole. A front fork 4 is fitted on the head tube 3 so as to be rotatable left and right, and a front wheel 5 is rotatably mounted on the lower end of the front fork 4. A power unit 6 that can be swung up and down is mounted on the rear half of the body frame 2. This rocking power unit 6 is formed by integrating a rocker-type overhead valve 4-stroke single-cylinder water-cooled internal combustion engine 7, a power transmission device 8, and a rear wheel support portion 9. The rear wheel support portion 9 includes a rear wheel 10. A rear suspension Π is interposed between the rear half of the body frame 2 and the rear half of the power unit 6. An article storage section 12 is provided at the upper rear end of the vehicle body frame 2, and a seat cushion 13 is provided to cover the opening of the upper end of the article storage section 1 2 so as to be freely closed. A fuel tank 15 is arranged below the foot pedal 14 at the center of the vehicle body. The vehicle body frame 2 is covered by a vehicle body cover 16. FIG. 2 is a longitudinal sectional view of the power unit 6 as viewed from the left. FIG. 3 is a cross-sectional development view of the power unit 6 including a cylinder axis, a crankshaft, a pulley shaft, and a gear shaft. The internal combustion engine 7 of this power unit is composed of a cylinder block 20, a cylinder head 21, a cylinder head cover 2, and a crankshaft box 2 3. A cylinder head 2 0 is combined with a cylinder head 2 1 at a slightly horizontal front end. A cylinder head cover 22 is coupled to the front end of the cylinder head 21 and a crankshaft box 23 is coupled to the rear end of the cylinder block 20. The crank case 2 3 is composed of left and right crank case 2 3 A, 2 3 B. In Figs. 2 and 3, in the cylinder hole 24 formed in the cylinder block 20, a piston 25 is slidably fitted, and the left and right crankshaft boxes 2 3 A and 2 3 B are covered by the patent 8 326 \ Instructions (Supplements) \ 94-04 \ 9314] 094 200528628 On the bearings 2 6 and 27, the pivot that supports rotation may support the crankshaft 28. On the piston 25 and the crankshaft 28, the piston pin 29 and the crank pin 30 respectively pass through. The rotatable pivot is connected to the two ends of the connecting rod 31, forming that if the piston 25 performs a reciprocating motion, the crankshaft 28 will be rotated. The status of the drive. The power transmission device 8 of the power unit 6 is composed of a V-belt stepless speed changer 32 and a gear reducer 33. The main body of the power transmission device 8 is a right transmission 40, a left transmission 41, and a rear wheel. The support box 42 is formed. The right gearbox 40 is made from the left crankshaft box 2 3 A. The left gearbox 41 is coupled to the right gearbox 40, and the rear wheel support box 42 is coupled to the right gearbox 40. The drive shaft of the V-belt stepless speed changer 3 2 is a crankshaft 2 8 provided with a drive pulley 43 of the V-belt stepless speed changer 3 2. The driven shaft 4 of the V-belt stepless speed changer 3 2 supports the right gearbox 40 and the rear wheel support box 4 2 rotatably, and the driven shaft 4 4 is provided through a centrifugal clutch 4 5 V-belt stepless transmission 3 2 driven pulley 4 6. A V-belt ring 4 7 is set across the driving pulley 4 3 and the driven pulley 4 6. The V-belt stepless transmission 3 2 series crankshaft 2 8 If the rotation exceeds a predetermined number of rotations, the centrifugal clutch 4 5 will be connected, and the driven shaft 4 4 will begin to rotate. If the number of rotations of the crankshaft 28 is further increased, it is convenient to use the centrifugal force application mechanism of the drive pulley 43 to form a state in which the number of rotations of the driven shaft 44 is greater than the number of rotations of the crankshaft 28. The gear reducer 3 3 series consists of gear sets provided on three rotating shafts. The first shaft system is a driven shaft 4 4 of a V-belt stepless speed changer 3 2 supported by a right gearbox 40 and a rear wheel support box 4 2 to form a pinion 4 8. The second shaft is supported by the right gearbox 40 and the rear wheel support box 4 2. The intermediate shaft 4 9 is rotatably supported, and the teeth 3 26 that engage the pinion 4 8 of the driven shaft are integrally embedded. (Supplement) \ 94-04 \ 93141094 9 200528628 Wheel 50, and form the adjacent pinion 51. The third shaft system is a rear wheel shaft 52 which is rotatably supported by the right gearbox 40 and the rear wheel support box 42, and a gear 53 is engaged with the above-mentioned intermediate shaft pinion 51. A rear wheel 10 is integrally fixed to the rear wheel shaft 52. With this structure, the torque of the driven shaft 44 will be transmitted to the rear wheel shaft 52 via the pinion 4 8, the gear 50, the intermediate shaft 4 9, the pinion 51 and the gear 5 3, so the rear wheel shaft 5 2 will A state where the speed is substantially decelerated with respect to the driven shaft 44 is established. Fig. 4 is a longitudinal sectional view of the front half of the internal combustion engine 7 viewed from the left. In the figure, the arrow F refers to the front of the internal combustion engine, and the arrow Up refers to the top. A combustion chamber 60 is formed on the bottom surface of the cylinder head 2 1 formed at the front end of the cylinder hole 24 formed in the cylinder block 20. In this combustion chamber, as shown in Fig. 3, a spark plug 86 is installed in the cylinder head 21 from the left side of the internal combustion engine so that the front electrode is close to the combustion chamber 60. In FIG. 4, an intake port 61 is formed above the cylinder head 21, and an exhaust port 62 is formed below the cylinder head 21. Suction valve 6 for closing the combustion chamber side opening 6 1 a of the air inlet 6 1 and exhaust valve 6 4 for closing the combustion chamber side opening 6 2 a of the air outlet 6 2 It can be slid into the cylinder head 2 1. The outer opening 6 1 b of the air inlet 6 1 is connected to the downstream end of the suction pipe 6 5. An air cleaner 6 6 (FIG. 2), a throttle valve 6 7, and a fuel injection valve 68 are connected to the intake pipe 65 in order from the upstream side. An upstream end 6 2 b of the exhaust port 62 is connected to an upstream end of the exhaust pipe 6 9, and a downstream end of the exhaust pipe 6 9 is connected to a muffler 7 0 (Fig. 2 and Fig. 3). In addition, the intake valve 6 3 and the exhaust valve 64 that are provided with elastic force in the valve opening direction by the valve spring 7 1 form a valve operating chamber 7 2 formed by the cylinder head 2 1 and the cylinder head cover 2 2. Equipped with 10 326 \ patent specification (supply) \ 94-04 \ 93141094 200528628 valve actuating device 7 3, it can be closed and driven. In FIG. 4, in a V-shaped space enclosed by the intake valve 63 and the exhaust valve 64, a pair of left and right bearings 7 4 (FIG. 3) is rotatably pivoted in a horizontal direction through the left and right bearings. One cam shaft 7 5 (Figure 3, Figure 4). An intake cam 7 6 and an exhaust cam 7 7 are integrally formed on the cam shaft 7 5. An intake rocker arm 7 8 is mounted on the cylinder head 21 at a position more forward and upward than the camshaft 75, and is mounted on a cylinder head 21 at a position below the intake rocker shaft 78. The exhaust rocking shaft 7 9 'is on the suction rocking shaft 7 8 and the exhaust rocking shaft 7 9', respectively, and pivotably supports the suction rocking arm 80 and the exhaust rocking arm 81. Here, one end of the suction rocker arm 80 and the exhaust rocker arm 81 are provided with sliding parts 80a and 8a, and the other end of the suction rocker arm 80 and the exhaust rocker arm 81 are provided with The abutting portions 8 0 b and 8 1 b of the rod tip of the intake valve 63 and the exhaust valve 64 are in contact with each other. A driven sprocket 82 (FIG. 3) is integrally provided at the left end portion of the cam shaft 75. Between the left crank arm 28a of the crankshaft 28 and the driving pulley 43, a driving sprocket 83 (Fig. 3) having the above-mentioned driven sprocket 82-half the number of teeth is integrally fitted. On the left side of the cylinder block 20 and the cylinder head 21, there is provided a transmission member storage space 8 4 connecting the above-mentioned driving sprocket 8 3 and the driven sprocket 82 2. In this space, the driving sprocket A chain 85 is set on 83 and the driven sprocket 82. The above is the structure of the valve operating device 73. If the crankshaft 2 8 rotates, the camshaft 7 5 is rotationally driven by half the number of rotations, and the intake cam 7 6 and the exhaust cam 7 7 are used to perform the intake width 6 3 and the exhaust valve 6 4 according to a predetermined timing. Off. FIG. 5 is an external side view of the internal combustion engine 7 near the right crankshaft case 2 3 B as viewed from the right. On the right crankshaft box 2 3 B, an auxiliary base 1 1 0, a pump housing 1 2 0, and a radiator supporting member 1 6 0, 11 326 are sequentially layered from the right side. \ Patent Specification (Supplement) \ 94 -04 \ 93141094 200528628 Ventilation guide member 170, radiator 180, and radiator cover 190. As shown in Fig. 6, the auxiliary base mounting surface 90 viewed from the right side of the right crank shaft box 2 3 Β is removed. It also shows the abutment surface of the main crank case 2 3 Α with respect to the right crank case 2 3 Β after the surrounding portion of the right crank case 2 3 Β is removed. In addition, the cylinder block 20 shows a sectional state. In the portion surrounded by the auxiliary base mounting surface 90, there are illustrated the crankshaft 28, the oil-gathering shaft 1 31, the water pump shaft 1 41, and the driving mechanism related to these shafts. FIG. 7 is a sectional view taken along the line V I I-V I I in FIG. 6. The arrow R refers to the right. This is an associated cross-sectional view of an auxiliary rotating shaft driven by the rotation of a crankshaft from a lower side, and is composed of a radiator support member 160, a ventilation guide member 170, a radiator 180, and the like shown in FIG. 5. The radiator cover 190 is an auxiliary structure of a portion covered by the radiator installation structure member. Before describing the heat sink installation structure, the auxiliary classes hidden by the heat sink mounting members will be explained first. In FIG. 6, an oil pump driving gear 1 3 2 is drum-mounted on a crankshaft 28, and an oil pump driven gear 1 3 3 engaged with the oil pump driving gear 1 3 2 is fitted on the oil pump shaft 1 3 1. In addition, a pump driving key wheel 1 4 2 is mounted on the oil pump shaft 1 3 1, and a pump driven sprocket 1 4 3 is mounted on the pump shaft 1 4 1, and is hung on the two sprockets. Ring chain 1 4 4. If the crankshaft 2 8 rotates, it is convenient to use the gears 1 3 2, 1 3 3 to drive the oil pump shaft 1 3 1 and use the sprocket 1 4 2, 1 4 3 and the ring key 1 4 4 to drive the water pump shaft 1 4 1. In the above-mentioned structure, the oil pump shaft 1 3 1 also incorporates a power transmission intermediate rotation shaft function for transmitting the power to the feed water pump shaft 1 4 1. In Figure 7, the left and right crankshaft boxes 2 3 A and 2 3 B are combined with bolts 12 and 12 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 200528628. The combination of the left and right crank case 2 3 A, 2 3 B inserts the bolt 9 1 into the connecting bolt insertion hole 9 2 of the right crank case 2 3 B, and locks into the connection of the left crank case 2 3 A Bolt holes 8-7. The crankshaft 28 is rotatably supported by the left and right crank shaft boxes 2 3 A and 2 3 B through the bearings 2 6 and 2 7. The crankshaft 28 is fitted with an oil pump driving gear 1 3 2 at a portion adjacent to the right bearing 27. An auxiliary base 1 1 0 is mounted on the right side of the right crank shaft box 2 3 B. On the mounting surface of the ACG stator of the cylindrical projection of the auxiliary base 110 surrounding the crankshaft 28, an AC C (alternator) 1 50 0 stator 1 5 1 is mounted with a bolt 1 5 2. A current take-out line 1 5 3 is provided on the stator 1 5 1. An AC generator 1 5 0 rotor 1 5 4 is attached to an end of the crankshaft 2 8 penetrating through the through hole 1 1 2 of the auxiliary base 1 10, and a cooling fan 1 5 5 is screwed onto the end face of the rotor 1 5 4 . The cooling fan 1 5 5 is used to ventilate a radiator 180 described later. A sealing material 88 is interposed between the through-hole 1 12 of the auxiliary base 1 10 and the crankshaft 28. FIG. 8 is a right side view of the right crank shaft box 23B, and FIG. 9 is a sectional view taken along line I X-I X in FIG. 8. In Figs. 8 and 9, the above-mentioned left and right crank case connection bolts 91 are inserted into the insertion holes 92. An auxiliary base mounting surface 90 is formed on the right side of the right crank shaft case 2 3 B. At one end of a portion surrounded by the auxiliary base mounting surface 90, a crankshaft through hole 93 is provided. The crankshaft 2 8 projects through the through hole 9 3 to the right of the crankcase. A support portion 9 4 of the bearing 27 is provided in the through hole 93 (FIG. 9). At the center of the portion surrounded by the auxiliary base mounting surface 90, an oil pump shaft supporting recessed portion 9 5 is formed and surrounds it to form an inflow portion oil groove 96 and an outflow portion oil groove 97. An oil inflow passage 98 and an oil outflow passage 9 9 are passed through the oil grooves 9 6 and 9 7 and around the right crank case 2 3 B (FIG. 8). Set oil pump housing mounting screw holes 1 0 0 near oil groove 13 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 200528628 9 6, 9 7. At the other end of the portion surrounded by the auxiliary base mounting surface 90, a pump shaft pedestal recessed portion 101 is formed. A peripheral hole of the auxiliary base mounting surface 90 is provided with an auxiliary base mounting screw hole 102 for screwing in an auxiliary base 1 10 mounting bolt to be described later. FIG. 10 is a right side view of the auxiliary base 110, and FIG. 11 is a cross-sectional view taken along the line X I-X I of FIG. An abutment surface 110a abutting on the auxiliary base mounting surface 90 of the right crank case 2 3 Β is provided on the left peripheral portion of the auxiliary base 1 10 (Fig. 1 1), and a pad is formed on this surface. Install the groove 1 1 0 b. The auxiliary base 1 1 0 makes the above-mentioned abutment surface 1 1 0 a abut against the mounting surface 90 of the right crank shaft box 2 3 B, and inserts the auxiliary base mounting bolt insertion hole 1 1 into the surrounding portion thereof. The bolts in 1, 1 1 1 A are screwed into the auxiliary base mounting screw holes 10 2 of the right crank shaft box 2 3 B and installed. Bolt insertion hole Π 1 A is the insertion hole through which the mounting bolts of the pump box will be described later. A crankshaft through hole 1 12 is provided at one end of the auxiliary base 1 10, and an ACG stator mounting surface 113 and three ACG stator mounting screw holes 1 1 4 are provided at a peripheral portion thereof. A C G stator mounting bolt 1 5 2 (Figure 7) is locked into this screw hole 11 4. A hub portion 1 15 is provided at a central portion of the auxiliary base 1 10. An oil pump shaft support recess 1 1 6 is formed on the left side of the hub 1 1 5 (Fig. 1 1). The oil pump shaft 1 3 1 is rotatably supported by the oil pump shaft support recess 9 5 (FIG. 8 and FIG. 9) of the right crankshaft box 2 3 B and the oil pump shaft support recess 1 1 6 provided on the hub 1 1 5. Support. A water pump shaft supporting through hole Π 7 is provided at the other end of the auxiliary base 1 110. The pump shaft 1 4 1 is a pump shaft support recess 14 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 200528628 101 through the right crankshaft box 2 3 B, and the bearing support part embedded in the above-mentioned through hole 117 The bearings on 118 (fig. N) 1 4 5 (fig. 7) are rotatably supported. A pump casing mounting surface 1 1 9 is formed at the end of the auxiliary base 1 1 0. A discharge pipe 128 of the water pump is attached to an end of a portion surrounded by the mounting surface 1 1 9. Figure 12 is a right side view of the pump casing 1 2 0, Figure 13 is a sectional view taken along line XIII-XIII of Figure 12, and Figure 14 is a sectional view taken along line x 1 V — X 1 V of Figure 12 . A peripheral surface of the left side of the pump casing 120 is provided with an abutting surface 120a 'which abuts the pump casing mounting surface 119 of the auxiliary base 110, and an approximate pad mounting groove 120b is formed on this surface (Figs. 13 and 14). Three bolt insertion holes 1 2 1 and 1 2 1 A are provided around the water pump casing 120. At the time of installing the pump casing 1 2 0 ', the abutting surface 120a is brought into contact with the mounting surface 119 of the auxiliary base 11 and the short bolts are inserted into the two bolt insertion holes 1 2 1 and locked. Insert the screw holes 1 2 2 for the pump casing installation provided at the positions corresponding to the auxiliary base 1 1 0 '. 水 Fix the pump casing 1 2 0 on the auxiliary base 1 1 0. A long bolt 123 (FIG. 7) is inserted into the bolt insertion hole 121A, and the bolt insertion hole 1 1 1 A at the corresponding position of the auxiliary base 110 is further inserted, and then locked into the right crank shaft box 2 3 The screw hole 1 2 at the corresponding position of B fixes the pump housing 12 0, the auxiliary base 1 10, and the right crank shaft box 2 3 B. Two cooling water inlets 1 2 4 and 1 2 5 are arranged on the top of the pump casing 1 2 0. In addition, at the lower end, a water spray passage cover portion 1 2 7 A connected to the vortex flow path cover portion 1 2 6 A is provided. This paired with the vortex flow path base portion 126B of the auxiliary base 1 10 and the water spray path cover 127B (Fig. 10), and each formed the vortex flow path 1 2 6 and the water spray path 1 2 7. The water spray is sent to the cylinder block 20 through a discharge pipe 128 (FIG. 10, FIG. 11) mounted on the auxiliary base 110. 326 \ Patent Specification (Supplement) \ 94 · 〇4 \ 93141094 15 200528628 In Figure 7, the oil pump shaft support recess 9 using the right crankshaft box 2 3 B, and the hub 1 1 5 with the auxiliary base 1 1 0 The oil pump shaft supporting recess 1 1 6 provided on the upper part rotatably supports the oil pump shaft 1 3 1. The oil pump shaft 1 3 1 is provided with an inner rotor 1 3 4 and an outer rotor 1 3 5 of an oil pump 1 3 0, and an outer side thereof is covered with an oil pump housing 1 3 6 fixed by a right crank shaft case 2 3 B. The oil pump housing 1 3 6 is screwed to the right crank shaft box 2 3 B and the screw hole 1 0 0 (Figure 8) is installed. The water pump shaft support recess 1 1 through the end of the right crankshaft box 2 3 B, and the bearing 1 4 5 held inside the water pump shaft support through hole 1 1 7 at the end of the auxiliary base 1 1 5 are rotatable. Supporting the pump shaft 1 4 1. A pump impeller 1 4 6 is fixed to the end of the shaft protruding to the right of the pump shaft 1 4 1 and is covered with a pump housing 1 2 0 on the outside. A sealing material 147 is installed between the impeller 1 4 6 and the bearing 1 4 5 between the inner surface of the water pump shaft supporting through hole 1 1 7 of the auxiliary base 1 1 and the water pump shaft 1 4 1. In the space surrounded by the inner surface of the water pump shaft support through hole 1 1 7 of the water pump casing 120 and the auxiliary base 1 10, a pump vortex flow path 1 2 6 is formed. If the crankshaft 28 is rotated, the oil pump drive gear 1 3 2 and the driven gear 1 3 3 are conveniently engaged, and the oil pump shaft 1 3 1 is rotated, and the inner rotor 134 and the outer rotor 135 in the oil pump casing 1 3 6 are used. The function is to suck the lubricating oil retained in the bottom of the crank case 23 from the oil inflow path 98 (FIG. 8) passing through the right crank case 2 3 B, and spray it out from the oil outflow path 99 (FIG. 8). , And then supply to the crankshaft box 2 3, the cylinder head 21. If the oil pump shaft 1 3 1 rotates, it is convenient to use a water pump driven sprocket 143 driven by the water pump drive sprocket 142 through the chain 144 from the oil pump shaft 1 3 1 to rotate the water pump shaft 1 4 1 and use the impeller 1 4 The function of 6 enables the cooled reflux cooling water to pass through the radiator 1 8 0 16 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 200528628 from the cooling inlet 1 2 4 provided on the fruit shell 1 2 0. 1 2 5 sucks in, passes through the vortex flow path 1 2 6 and the water spraying path, and then sprays out from the spray pipe 1 2 8 installed on the auxiliary base 1 10, and then gives the cylinder block 20 and so on. An ACG stator 151 is mounted on the auxiliary base 110. An ACG rotor 152 is mounted on the crankshaft 28 and rotates around the stator 151. If the crankshaft 28 is rotated, it is convenient to use the interaction between the two to generate and extract current from the current extraction line 1 5 3 (Fig. 7). Next, a mounting structure of the heat sink will be described. Fig. 15 is a sectional view taken along line X V-X V in Fig. 6. This figure cuts the right crankshaft box and its parts toward a roughly straight cross section, and when viewed from the rear, the right crankshaft box 2 3 Β and the auxiliary base 1 1 0, the layer Zing'an is a radiator support member 160, which is a radiator mounting structure-associated member, a wind guide member 170, a radiator 180, and a radiator cover 190. Figure 16 is a right side view of the radiator support member 160, and Figure 17 is a sectional view taken along line X V I I-X V I I of Figure 16. This component is made of aluminum alloy. It is mounted on the right crankshaft box 23B, surrounds the fan 1 5 5 provided at the end of the crankshaft 28, and supports a radiator 1 8 0 opposite to the cooling fan 1 5 5. The main body is a short cylindrical member with a cooling air passage 1 6 1 in the center. A large number of deaeration holes 1 are provided in the cylindrical portion 16 and 2 and are holes for releasing the air introduced through the cooling fan 1 5 from the periphery of the cooling fan to the outside. A plurality of portions are formed around the cylindrical portion 162. And it is provided with bolt insertion holes for mounting the radiator supporting member 1 60 on the arbor box, or for mounting other components on the heat sink 32 6 \ Patent Specification (Supplement) \ 94-04 \ 93141094 17 The current is 127 degrees, and it is used for rotation. Electricity, display system additional display. Installed, communication system, and the cold place is larger 63 ° 155 protruding right curve device support 200528628 bolts on the support member 1 60 screw holes. In the following explanatory drawings including this figure, bolts, bolt insertion holes, and screw holes for mounting members are shown in accordance with the following rules. (1) The bolt for mounting the radiator support member 160 on other members is called "A", and the insertion hole of the bolt A provided in the radiator support member 160 itself is denoted as "A 1". The screw holes provided in the other members for the lock-in bolt A are designated as "A 2". (2) The bolt for mounting the ventilation guide member 170 on another member is referred to as "B", and the insertion hole of the bolt B provided in the ventilation guide member 170 itself is denoted as "B 1". The screw holes provided on the other members for the lock-in bolt B are indicated as "B 2". (3) The bolt for mounting the radiator 180 on other components is referred to as "C", and the insertion hole of the bolt C provided in the radiator 180 itself is denoted as "C 1", and the bolt for locking in C The screw holes provided on other components are denoted as r C2 ″ ° (4) The bolts for mounting the radiator cover 1 90 on other components are called “D”, and the radiator cover 1 9 0 itself The insertion hole of the bolt D provided is indicated as "D 1", and the screw hole provided on the other member for locking the bolt D is indicated as "D 2". The radiator support member 160 is provided with four insertion holes A 1 of the mounting bolts A of the radiator support member 160, and three ventilation guide mounting bolts are provided for the mounting screw holes of the other members. Locking screw hole B2, 4 heat sink mounting bolts locking screw hole C2. Screws for locking the above radiator mounting bolts? The LC 2 is placed on the wrist 18,326 which is tilted upward and forward at the upper end of the cylindrical part 1 6 2 18 \ Patent Specification (Supplement) \ 94-04 \ 93141094 200528628 The cylindrical part 1 6 4 and the cylindrical part 1 6 2 On the protrusions 1 6 5. That is, the heat sink is supported by the wrist members 16 and the protrusions. Two of the ventilation guide mounting bolt locking screw holes B 2 are provided on the wrist portion 16 4, and the remaining one is provided on a portion protruding toward the lower end of the cylindrical portion 16 2. That is, the ventilation guide member 170 is installed between the radiator support member 160 and the radiator 180, and is mounted in a state surrounded by the upper wrist portion 16 and the front-rear projection 1616. In order to lock the mounting bolt A of the radiator support member 160, the other screw holes A 2 are provided in the right crankshaft box 2 3 B of FIG. 8, and the auxiliary base 1 of FIG. 10 is provided. Set 1 on 0. FIG. 18 is a right side view of the ventilation guide member 170, and FIG. 19 is a sectional view taken along the line X I X-X I X of FIG. The positions of the radiator 180 and the cooling fan 155 are staggered upwards and downwards (Fig. 15). This component forms a ventilation path between the radiator 180 and the cooling fan 155, and directs the air passing through the radiator 180 to the cooling fan 155 smoothly. The ventilation guide member 170 is composed of a cooling air passage 171 slightly larger than a semicircular shape at the center, a cooling air guide plate 172 having a square upper edge at the upper end and a semicircular concave shape at the lower edge, and a slightly smaller semicircular shape at the lower end The opening portion is formed by a closing plate 173. This member is a member made of synthetic resin with glass fibers incorporated. In the ventilation guide member 170, three insertion holes B 1 of the mounting bolts B of the ventilation guide member 170 are provided, and the mounting screw holes of other members are provided on the surrounding protrusions 1 7 4 Three screw holes D 2 for mounting bolts of the radiator cover are provided. Three screw holes B 2 for the mounting bolts B locked into the ventilation guide member 170 are provided in the radiator support member 160 in FIG. 16. Figure 20 is a right side view of the radiator 180, and Figure 21 is a 19 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 200528628 XX I-XXI arrow view of Figure 20. This component has an upper groove 1 8 at the upper end and a lower groove 1 8 2 at the lower end, and uses a large number of water pipes 1 8 3 to connect the two into the cooling water from the upper end to the lower end. Device for cooling internal cooling water. The upper tank 1 8 1 has a cooling water inlet 1 8 4 and the lower tank 1 8 2 is provided with a cooling water discharge port 1 8 5. 1 The upper tank 1 8 1 is provided with a cooling water supply port 1 8 6 with a cover and the remaining Water port 1 8 6 a 〇 Cooling water discharge port 1 8 2 of radiator lower tank 1 8 5 and pump casing 1 cooling water inflow port 1 2 4 are connected by water pipe, and cooling water flows from radiator 1 pump 1 4 0 . The cooling water outlet of the radiator 1 80] and the cooling water inlet 1 2 4 of the water pump 1 40 are located close to each other as shown in FIG. 5. The connection water pipe is not shown in FIG. 5. The insert C 1 of the mounting bolt C of the radiator 1 180 in the radiator 1 80 is one of the protruding portions 1 8 8 provided on the front and rear frames 1 8 7, and a total of 4 are provided. The mounting screw without other components is provided to lock the screw hole C 2 for the mounting bolt C of the radiator 1 80, the radiator supporting member 1 6 of FIG. 16 and the wrist portion 1 6 4 and the protruding portion. Set up four. The right side view of the radiator cover 190 shown in Fig. 2 and X X I I I-X X I I I sectional view of the system shown in Fig. 2 3. This system has a lattice-shaped ventilation unit 1 and belongs to a component for protecting the radiator 180. Around the radiator cover 190, three insertion holes D1 for the mounting bolts D of the radiator cover 190 are provided. Because other components are installed on the right side of the radiator cover 190, there are no mounting screw holes for other components 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 20 1. The installation and discharge The 80's of the 20's are oriented toward the 85 'through holes. It is tied to. The general picture 22 91 is not. Three screw holes D 2 for 200528628 for locking the mounting bolts D of the radiator cover 1 90 itself are provided on the protrusions 17 4 around the ventilation guide member 17 0 shown in FIG. 18. If the general mounting bolts A, B, C, and D of the above-mentioned members are collectively referred to as "X", the bolt X is inserted through the above-mentioned members according to the illustrated symbols attached to the above-mentioned display rules. The mounting bolt is inserted into the hole X1 and the bolt-locking screw hole X2 provided in the mounting target member is locked and fixed at the front end of the bolt X, thereby fixing the four members and the radiator support member 1 60, ventilation guide member 170, radiator 180, and radiator cover 190 are installed on the right crankshaft box 2 3 B and auxiliary base 1 1 0, and can be in the order of the above components Install each other. The perspective schematic diagrams of the radiator support member 160 and the ventilation guide member 170 shown in FIG. 24 are shown in a state separated from each other. Around the radiator support member 160, there are provided four bolt insertion holes A1 for mounting the radiator support member 160 itself to other members. On the radiator supporting member 160, two wrist-like portions 16 are provided at the upper end and two protruding portions 16 are provided at the front and rear, and mounting bolts for installing the radiator 180 are provided. Locking screw hole C2. The ventilation guide member 170 is provided with three bolt insertion holes B 1 for mounting the ventilation guide member 170 itself on the radiator support member 160. The screw-in screw hole B 2 of this bolt is provided in the heat sink supporting member 160. Three peripheral protrusions 174 are provided around the ventilation guide member 170, and each has a heat sink cover mounting bolt lock screw hole D2. FIG. 25 is a perspective view showing a state where the above-mentioned radiator support member 160 and the ventilation guide member 170 are overlapped at the connection position. Radiator 1 8 0 Installation 21 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 200528628 Screw hole C 2, Radiator cover 1 9 0 Screw holes D 2 for installation are exposed to the ventilation guide member 1 7 0 The outer periphery of the right side forms a position where the radiator 180 and the radiator cover 190 can be installed. Figure 26 shows a perspective view of the front half of the internal combustion engine, and Figure 27 shows a view of the front half of the internal combustion engine from above. These drawings show that the radiator support member 160, the ventilation guide member 170, the radiator 180, and the radiator cover 190 are located at mutually connected positions. The mounting bolts for these components are not shown. Also, the figure shows one of the above-mentioned mounting holes 180 for the heat sink 180, one of which is adjacent to one of the heat sink mounting bolt insertion holes C1 provided on the heat sink 180, and the above-mentioned heat sink cover 190. One of the mounting screw holes D2 is adjacent to one of the heat sink cover mounting bolt insertion holes D1. As detailed above, this embodiment is because the radiator support member 160 and the ventilation guide member 170 are separate entities. Therefore, the radiator guide member 160, which requires strength, uses a highly rigid material, and the ventilation guide The component 170 uses lightweight materials to reduce the overall weight. In addition, since the shape of the heat sink supporting member 160 can be designed without considering the weight increase of the ventilation guide member 170, the degree of freedom in disposing the heat sink 180 can be improved. For example, if the radiator support member 160 is made of aluminum alloy, and the ventilation guide member 170 is made of lightweight synthetic resin, it is possible to take care of the radiator 180 support that ensures suspension and shaking with the internal combustion engine. The rigidity and lightness of the part. Furthermore, since the ventilation guide member 170 is located between the radiator support member 160 and the radiator 180, and the wrist-like portion 16 and the protruding portion 1 provided by the radiator support member 160 are used. 6 5, and protect the surroundings, so it is not necessary to use high-strength materials, so it can be lightweight. In addition, with the above-mentioned wrist shape 22 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 200528628 Section 1 6 4 and Projection 1 6 5 because the radiator can be supported above the crankshaft, the row can be ensured. The arrangement space of the air pipe can ensure the tilt angle of the vehicle. [Brief Description of the Drawings] Fig. 1 is a side view of a speed locomotive 1 equipped with an internal combustion engine having a radiator mounting structure of the present invention. FIG. 2 is a longitudinal sectional view of the power unit 6 of the locomotive 1 as viewed from the left. Fig. 3 is a cross-sectional development view of the power unit 6 including a cylinder axis, a crankshaft, a pulley shaft, and a gear shaft. FIG. 4 is a longitudinal sectional view of the front end of the internal combustion engine 7 as viewed from the left. Fig. 5 is an external side view of the vicinity of the right crank case 2 3 B of the internal combustion engine 7 as viewed from the right. FIG. 6 is a schematic diagram of the auxiliary base mounting surface 90 of the right crank shaft box 2 3 B. FIG. 7 is a sectional view taken along the line V I I _ V I I in FIG. 6. Fig. 8 is a right side view of the right crank shaft case 2 3 B. FIG. 9 is a sectional view taken along the line I X-I X in FIG. 8. FIG. 10 is a right side view of the auxiliary base 110. FIG. 11 is a sectional view taken along the line X I-X I of FIG. 10. Fig. 12 is a right side view of the water pump housing 120. FIG. 13 is a sectional view taken along the line X I I I-X I I I of FIG. 12. Fig. 14 is a sectional view taken along the line X I V-X I V in Fig. 12. FIG. 15 is a sectional view taken along the line X V-X V in FIG. 6. FIG. 16 is a right side view of the radiator supporting member 160. FIG. FIG. 17 is a sectional view taken along line X V I I-X V I I of FIG. 16. 23 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 200528628 Figure 18 is a right side view of the ventilation guide member 170. FIG. 19 is a sectional view taken along the line X I X-X I X in FIG. Figure 20 is a right side view of the heat sink 180. FIG. 21 is a view in the direction of arrows XX-XX in FIG. 20. Figure 22 is a right side view of the radiator cover 190. FIG. 23 is a cross-sectional view taken along line X X I I I-X X I I I of FIG. 22.
圖2 4為散熱器支撐構件1 6 0與通風導引構件1 7 0的立 體示意圖，顯示相互離開狀態。 圖2 5為上述散熱器支撐構件1 6 0與通風導引構件1 7 0 重疊於連接位置狀態的立體示意圖。 圖2 6為内燃機前半部的立體示意圖。 圖2 7為從上方觀看内燃機前半部的圖示。 【主要元件符號說明】 1 速克達型機車 2 車體框架Fig. 24 is a schematic perspective view of the radiator support member 160 and the ventilation guide member 170, showing a state of being separated from each other. FIG. 25 is a schematic perspective view of a state where the radiator support member 160 and the ventilation guide member 170 overlap with each other at a connection position. Figure 26 is a schematic perspective view of the front half of the internal combustion engine. Fig. 27 is a diagram of the front half of the internal combustion engine viewed from above. [Description of Symbols of Main Components] 1-speed locomotive 2 Body frame
3 頭管 4 前 叉 5 前 輪 6 動 力 單 元 7 内 燃 機 8 動 力 傳 遞 裝置 9 後 輪 支 撐 部 10 後 輪 11 後 懸 吊 326\專利說明書(補件)\94-04\93141094 24 200528628 12 物 品 收 納 部 13 椅 墊 14 腳 踏 板 15 燃 油 槽 16 車 體 蓋 20 汽 缸 體 21 汽 缸 頭 21a 抵 接 面 22 汽 缸 頭 蓋 23 曲 柄 轴 箱 23 A 左 曲 柄 軸 箱 23B 右 曲 柄 車由 箱 24 汽 缸 孔 25 活 塞 26 軸 承 27 軸 承 28 曲 軸 28a 左 側 曲 柄 臂 29 活 塞 鎖 30 曲 柄 銷 3 1 連 桿 32 V 皮 帶 式 無段變速機 33 齒 輪 減 速 機 4 0 右 變 速 箱 326\專利說明書(補件)\94-(M\931410943 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 326 \ Patent specification (Supplement) \ 94-04 \ 93141094 24 200528628 12 Item storage section 13 Seat cushion 14 Foot pedal 15 Fuel tank 16 Body cover 20 Cylinder block 21 Cylinder head 21a Abutment surface 22 Cylinder head cover 23 Crankshaft box 23 A Left crankshaft box 23B Right crank car by box 24 Cylinder bore 25 Piston 26 Bearing 27 Bearing 28 Crankshaft 28a Left crank arm 29 Piston lock 30 Crank pin 3 1 Connecting rod 32 V Belt-type stepless speed changer 33 Gear reducer 4 0 Right gearbox 326 \ Patent specification (Supplement) \ 94- (M \ 93141094
25 200528628 4 1 左 變 速 箱 42 後 輪 支 撐 箱 43 驅 動 滑 輪 44 從 動 軸 45 離 心 式 離 合 器 46 從 動 滑 輪 47 V 皮; 帶 環 48 小 齒 輪 49 中 間 軸 50 齒 輪 5 1 小 齒 輪 52 車 軸 53 齒 輪 6 0 燃 燒 室 6 1 進 氣 口 6 1a 燃 燒 室 側 開 V 6 1b 外 側 開 V 62 排 氣 口 62a 燃 燒 室 側 開 V 62b 外 側 開 63 吸 氣 閥 64 排 氣 閥 65 吸 氣 管 66 空 氣 〉慮 清 器 3 26\專利說明書(補件)\94-04\9314109425 200528628 4 1 Left gearbox 42 Rear wheel support box 43 Drive pulley 44 Drive shaft 45 Centrifugal clutch 46 Drive pulley 47 V leather; Ring 48 Pinion 49 Intermediate shaft 50 Gear 5 1 Pinion 52 Axle 53 Gear 6 0 Combustion chamber 6 1 Air inlet 6 1a Combustion chamber side V 6 1b Outer side V 62 Exhaust port 62a Combustion side side V 62b Outer side 63 Suction valve 64 Exhaust valve 65 Suction pipe 66 Air> Clearer 3 26 \ Patent Specification (Supplement) \ 94-04 \ 93141094
26 200528628 6 7 Λ/r 即 流 閥 68 燃 油 噴 射 閥 6 9 排 氣 管 70 消 音 器 7 1 汽 門 彈 簧 72 閥 動 室 73 閥 動 裝 置 74 軸 承 75 凸 輪 軸 76 吸 氣 凸 輪 77 排 氣 凸 輪 78 吸 氣 搖 軸 79 排 氣 搖 軸 80 吸 氣 搖 臂 80a 滑 動 部 80b 抵 接 部 8 1 排 氣 搖 臂 8 1a 滑 動 部 8 1b 抵 接 部 82 從 動 鏈 輪 83 主 動 鏈 輪 84 傳 動 構 件 收納空間 85 環 鏈 86 火 星 塞 326\專利說明書(補件)\94-(Μ\93141〇9426 200528628 6 7 Λ / r flow valve 68 fuel injection valve 6 9 exhaust pipe 70 muffler 7 1 valve spring 72 valve operating chamber 73 valve operating device 74 bearing 75 camshaft 76 suction cam 77 exhaust cam 78 suction Pneumatic rocker shaft 79 Exhaust rocker shaft 80 Suction rocker arm 80a Sliding part 80b Abutment part 8 1 Exhaust rocker arm 8 1a Sliding part 8 1b Abutment part 82 Driven sprocket 83 Driven sprocket 84 Transmission member storage space 85 Ring Chain 86 Mars Plug 326 \ Patent Specification (Supplement) \ 94- (Μ \ 93141〇94
27 200528628 8 7 左右曲柄軸箱連接用螺孔（左曲柄 88 密封材（曲軸外周） 90 輔助基座安裝面 9 1 左右曲柄軸箱連接螺栓 9 2 左右曲柄軸箱連接螺栓插通孔 9 3 曲軸貫通孔 94 軸承2 7之支撐部 95 油泵軸支撐凹部 9 6 流入部油溝 9 7 流出部油溝 9 8 油流入通路 9 9 油流出通路 10 0 油泵殼安裝用螺孔 10 1 水泵轴支撐凹部 1 02 輔助基座安裝用螺孔 110 輔助基座 110a 抵接面 1 1 Ob 襯墊安裝溝 1 1 1、1 1 1 A 輔助基座安裝螺栓插通孔 112 曲軸插通孔 113 ACG定子安裝面 114 A C G定子安裝用螺孔 115 .轂部 116 油泵軸支撐凹部 28 326\專利說明書(補件)\94-04\93141094 200528628 117 水泵軸支撐貫通孔 118 轴承支撐部 119 水泵殼安裝面 12 0 水泵殼 12 0a 抵接面 1 20b 襯墊安裝溝 1 2 1、1 2 1 A 水泵殼安裝用螺栓插通孔 1 22 水泵殼安裝用螺孔 1 23 長螺栓 12 4 冷卻水流入口 12 5 冷卻水流入口 12 6 漩渦流路 1 2 6 A 漩渦流路蓋部 1 2 6B 漩渦流路基座部 1 27 噴水通路 1 2 7 A 噴水通路蓋部 1 28 噴出管 1 30 泵 131 油泵軸 1 32 油泵驅動齒輪 1 33 油泵從動齒輪 1 34 内轉子 1 35 外轉子 136 油系殼 2927 200528628 8 7 Left and right crankshaft box screw holes (left crank 88 sealing material (outside of crankshaft) 90 auxiliary base mounting surface 9 1 left and right crankshaft box connection bolts 9 2 left and right crankshaft box connection bolt insertion holes 9 3 crankshaft Through hole 94 Bearing 2 7 Supporting part 95 Oil pump shaft support recess 9 6 Inflow part oil groove 9 7 Outflow part oil groove 9 8 Oil inflow path 9 9 Oil outflow path 10 0 Screw hole for oil pump casing installation 10 1 Water pump shaft support recess 1 02 Auxiliary base mounting screw hole 110 Auxiliary base 110a abutment surface 1 1 Ob Pad mounting groove 1 1 1, 1 1 1 A Auxiliary base mounting bolt insertion hole 112 Crank shaft insertion hole 113 ACG stator mounting surface 114 ACG stator mounting screw holes 115. Hub 116 Oil pump shaft support recess 28 326 \ Patent specification (Supplement) \ 94-04 \ 93141094 200528628 117 Water pump shaft support through hole 118 Bearing support 119 Water pump housing mounting surface 12 0 Water pump Shell 12 0a Abutment surface 1 20b Gasket mounting groove 1 2 1, 1 2 1 A Bolt insertion hole for water pump housing installation 1 22 Screw hole for water pump housing installation 1 23 Long bolt 12 4 Cooling water inlet 12 5 Cooling water inlet 12 6 Vortex flow path 1 2 6 A vortex flow path cover part 1 2 6B vortex flow path base part 1 27 water spray path 1 2 7 A water spray path cover part 1 28 spout pipe 1 30 pump 131 oil pump shaft 1 32 oil pump drive gear 1 33 oil pump driven gear 1 34 inner rotor 1 35 outer rotor 136 oil system case 29
3 26\專利說明書(補件)\94-04\93141094 200528628 1 40 水 泵 14 1 水 泵 軸 1 42 水 泵 馬G 動 鏈 輪 143 水 泵 從 動 鏈 輪 1 44 環 鏈 145 軸 承 1 46 葉 輪 147 密 封 材 (水泵軸外周） 1 50 AC 發 電 機 15 1 定 子 1 52 螺 栓 1 53 電 流 取 出 線 1 54 轉 子 1 55 冷 卻 風 扇 1 60 散 熱 器 支 撐 構件 16 1 冷 卻 風 通 路 1 62 筒 狀 部 1 63 脫 氣 孔 1 64 腕 狀 部 1 65 突 出 部 170 通 風 導 引 構 件 17 1 冷 卻 風 通 路 1 72 冷 卻 風 導 板 1 73 封 閉 板 326\專利說明書(補件)\94-04\93141094 30 200528628 1 74 周 圍 突 出 部 18 0 散 熱 器 18 1 上 槽 1 82 下 槽 183 水 管 184 冷 卻 水 導 入 口 1 85 冷 卻 水 排 出 V 18 6 冷 卻 水 補 給 V 1 8 6a 剩 餘 水 排 出 口 1 87 框 體 188 突 出 部 1 90 散 熱 器 蓋 19 1 格 子 狀 通 風 部 A 供 將 散 熱 器 支 撐 構 栓 A 1 散 熱 器 支 撐 構 件 1 A2 供 鎖 入 螺 栓 A 用 之 B 供 將 通 風 導 引 構 件 B1 通 風 導 引 構 件 1丨 70 B2 供 鎖 入 螺 栓 B 用 之 C 供 將 散 熱 器 1 I 80 安 Cl 散 熱 器 1 1 80 上 所 設 C2 供 鎖 入 螺 栓 C 用 之 D 供 將 散 熱 器 蓋 1 ' 90 326\專利說明書(補件)\94-04\93141094 件1 6 0安裝於其他構件上的螺 6 0上所設置螺栓Α的插通孔 在其他構件上所設置的螺孔 1 7 0安裝於其他構件用的螺栓 上所設置螺栓B的插通孔 在其他構件上所設置的螺孔 裝於其他構件上的螺栓 置螺栓C的插通孔 在其他構件上所設置的螺孔 安裝於其他構件上的螺栓 31 200528628 D 1 散熱器蓋1 9 0上所設置螺栓D的插通孔 D 2 供鎖入螺栓D用之在其他構件上所設置的螺孔3 26 \ Patent Specification (Supplement) \ 94-04 \ 93141094 200528628 1 40 Water pump 14 1 Water pump shaft 1 42 Water pump horse G Sprocket 143 Water pump driven sprocket 1 44 Chain 145 Bearing 1 46 Impeller 147 Sealing material ( Water pump shaft periphery) 1 50 AC generator 15 1 Stator 1 52 Bolt 1 53 Current take-out line 1 54 Rotor 1 55 Cooling fan 1 60 Radiator support member 16 1 Cooling air passage 1 62 Tubular section 1 63 Deaeration hole 1 64 Wrist Shaped part 1 65 Protruded part 170 Ventilation guide member 17 1 Cooling air passage 1 72 Cooling air guide plate 1 73 Closure plate 326 \ Patent specification (Supplement) \ 94-04 \ 93141094 30 200528628 1 74 Surrounding protrusion 18 0 Heat dissipation Device 18 1 Upper tank 1 82 Lower tank 183 Water pipe 184 Cooling water inlet 1 85 Cooling water discharge V 18 6 Cooling water supply V 1 8 6a Residual water outlet 1 87 Frame 188 Protrusion 1 90 Radiator cover 19 1 Grid Ventilation Part A is used to lock the radiator support structure A 1 radiator support member 1 A2 is used to lock the bolt A B is used to lock the ventilation guide member B1 ventilation guide 1 1 70 B2 is used to lock the bolt B C Radiator 1 I 80 amps Cl Radiator 1 1 80 C2 provided for locking bolt C D for radiator cap 1 '90 326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 pieces 1 6 0 Insertion holes for bolts A provided on screws 60 mounted on other members Screw holes provided on other members 1 70 0 Insertion holes for bolts B installed on bolts used for other members on other members The provided screw holes are bolts installed on other components. The insertion holes of bolts C are provided. The screw holes provided on other components are installed on other components. Bolts 31 200528628 D 1 the radiator cover 1 9 0 is provided with bolts D Through hole D 2 is a screw hole provided on the other component for the locking bolt D
326\專利說明書(補件)\94-04\93141094 32326 \ Patent Specification (Supplement) \ 94-04 \ 93141094 32