1228093 (1) 玫、發明說明 【發明所屬之技術領域】 本發明是關於在車體框架所搭載的油箱內，收容安裝 在β油相的上壁部的燃料泵浦，且以乘車用座墊覆蓋該油 箱的上方的機車’特別是關於機車的燃料系配置構造的改 良。 【先前技術】 以乘車用座墊來覆蓋收容著燃料泵浦的油箱的上方的 機車’例如在日本專利文獻1等是習知的構造。 〔專利文獻1〕 日本特公平7— 110630號公報 【發明內容】 〔發明欲解決的課題〕 在將燃料泵浦安裝在油箱的上壁部的構造中，是在油 箱的上壁部上配置燃料泵浦及燃料軟管的連接部，而需要 避免乘車用座墊對連接部的干涉，而在上述傳統的構造中 ，是將乘車用座墊的高度設定在不會與上述連接部產生干 涉的位置，而會讓乘車用座墊的高度設定的自由度變小。 本發明鑒於這種情況，其目的要提供一種機車的燃料 系配置構造，可增加乘車用座墊的高度設定的自由度，且 防止乘車用座墊干涉到對燃料泵浦的連接部。 (2) 1228093 〔用以解決課題的手段〕 爲了達成上述目的，第1發明，是在搭載於車體框架 的油箱內，收容著安裝在該油箱的上壁部的燃料泵浦，以 乘車用座墊覆蓋該油箱的上方的機車，其特徵爲：將上述 燃料泵浦安裝在設置於上述油箱的上壁部的朝下方凹陷的 泵浦安裝部，以外殼從上方覆蓋該泵浦安裝部。 藉由第1發明的構造，由於安裝著燃料泵浦的泵浦安 裝部，是朝下方凹陷且被設置在油箱的上壁部，所以即使 對燃料泵浦的連接部被配置在泵浦安裝部上，也可防止與 乘車用座墊的干涉，可以增加乘車用座墊的高度設定的自 由度。並且藉由外殼從上方覆蓋泵浦安裝部，所以當要對 油箱進行供油而將乘車用座墊開啓時，可確實地防止誤接 觸到上述連接部而可保護對燃料泵浦的連接部，讓上述連 接部不會露出而可得到優異的外觀。 第2發明，是針對上述第1發明的構造，用來將上述 燃料泵浦插入到油箱內的插入孔是被設置在上述泵浦安裝 部，作成從上方關閉該插入孔而設置在燃料泵浦的上端的 蓋板是被安裝在上述泵浦安裝部，是將上述外殼安裝在上 述蓋板，藉由這種構造，則不需要用來將外殼固定在油箱 側的特別構件，而可減少零件的數量。 第3發明，是針對上述第1或第2發明的構造，在遠 離上述燃料泵浦的位置，上述外殼是被安裝在用來支承上 述油箱且設置在車體框架的支架，藉由這種構造，則不需 要用來安裝外殼的專門的零件，可以減少零件數量，並且 -6- (3) 1228093 可以堅固地支承外殼。 第4發明，是針對上述第1〜第3其中一項的發明， 在配置於後輪上方的油箱的前方，配置有以上述乘車座墊 所覆蓋的置物箱，在上述油箱的左右其中一側的前部配置 有上述泵浦安裝部與上述燃料泵浦，在上述油箱的左右另 一側的前端部或在上述置物箱的左右另一側的後端部，將 從上述燃料泵浦側延伸出的軟管通過上述油箱的前部及上 述置物箱的後部之間且設置缺口部，上述軟管，是彎曲配 置成在上述置物箱的後方側成爲開放上述左右方向的其中 一側的略U字型。 藉由第4發明的構造，則可將燃料泵浦配置在油箱的 較深的位置，並且可以順利地配置軟管。也就是說雖然由 於配置在後輪上方導致讓油箱的左右方向中間部變得較淺 ’而藉由將燃料泵浦配置在油箱的左右其中一側，則可將 燃料泵浦配置在油箱的較深的位置，而從燃料泵浦延伸出 的軟管’是通過油箱的左右另一側的前端部或置物箱的左 右另一側的後端部的缺口，是配置成彎曲爲略U字型， 即使置物箱位於油箱前方也沒關係，可避免上述軟管彎曲 幅度過大’而使其稍微彎曲，而可以順暢地配置上述軟管 〇 第5發明，是針對上述第丨〜第4其中一項的發明， 在上述泵浦安裝部周圍的複數位置，在上述油箱的上壁部 設置可支承上述乘車用座墊的座墊荷重支承位置，藉由這 種構造’即使由於較大負荷的作用讓乘車用座墊下沉，而 (4) 1228093 在泵浦安裝部的周圍的複數位置且在油箱的上壁部，可支 承乘車座墊的荷重，所以能抑制乘車用座墊的變形，可以 避免來自於乘車用座墊側的荷重作用到外殼。 【實施方式】 以下是根據附圖所示的本發明的實施例來說明本發曰月 的實施方式。 弟1圖〜第18圖是顯不本發明的第--實施方式，第 1圖是機車的全體側面圖，第2圖是在將車體外殼卸下白勺 狀態的機車的前後方向中央部的立體圖，第3圖是引擎@ 進氣系統的側面圖，第4圖是第3圖的4 - 4線放大剖面 圖’第5圖是第3圖的5端視放大圖，第6圖是第5 _的 6 — 6線剖面圖，第7圖是從第3圖的7端視方向來看白勺 空氣濾淸器的背面圖，第8圖是第7圖的8 - 8線剖面圖 ，第9圖是第3圖的7端視圖，第1 〇圖是進氣管及燃料 噴射閥的平面圖，第1 1圖是第1 0圖的1 1 一 1 1線剖面_ ，第1 2圖是機車的後部縱剖面圖，第1 3圖是第1 2 _ _ 1 3 — 1 3線剖面圖，第1 4圖是第1 3圖的1 4 一 1 4線剖面圖 ，第1 5圖是油箱、燃料泵浦、以及外殼的分解立體_， 第1 6圖是第1 3圖的1 6 — 1 6線放大剖面圖，第1 7圖楚第 1 6圖的1 7 — 1 7線剖面圖，第1 8圖是第1 3圖的1 8、j ^ 線放大剖面圖。 首先在第1圖中，該機車的車體框架20，是具備有 :可轉向地支承前叉24的頭管2 1、從該頭管2 1朝後下 -8- (5) 1228093 方延伸的主框架22、以及連接設置於主框架22的後部且 朝後上方延伸的左右的一對後框架23……，在上述前叉 24的下端軸支承著前輪WF，在前叉24的上部是連結著 桿狀的轉向桿25，在前叉24，是支承著用來覆蓋前輪WF 的上方的前擋泥板2 6。 合倂參照第2圖及第3圖，主框架22，是由橫剖面 四角形的方管所構成，在該主框架2 2的中間部兩側面是 分別固定安裝著懸掛板27……，在主框架22的後部兩側 面是固定安裝著樞軸板28。 在主框架22的下方’是配置著例如將氣缸軸線稍微 作在前上方的引擎E，該引擎E，是以上述懸掛板27…… 及樞軸板2 8所支承而被懸架在車體框架2 0。 在上述樞軸板2 8，是可上下擺動地支承著後叉2 9的 前端部，在後叉2 9的後端軸支承著後輪w R。而在車體 框架2 0的後框架2 3......及後叉2 9之間設置有後避震單 元3 0。 上述引擎E，是與變速器Μ —起構成動力單元p，變 速器Μ的輸出會經由鏈條3 1而被傳達到後輪w R。 在引擎E的上方，是配置有：節流閥主體3 2、以及 較該節流閥主體3 2更前方的空氣濾淸器3 3，在後輪WR 的上方’配置有油箱3 4 A ’配置在該油箱3 4 A的前方的置 物相j 5 A以及上述油相3 4 A的上方，是可用例如雙人乘 坐型的乘車用座墊3 6可開閉地加以覆蓋。 20、 在車體框架20’是安裝用來覆蓋：該車體框架 (6) 1228093 上述引擎E的局部、節流閥主體3 2、空氣濾淸器3 3、油 箱34A、以及置物箱35A之合成樹脂製的車體外殼38， 該車體外殼3 8，是以：配置在主框架2 2的左右兩側的前 側外殼3 9.......從前方覆蓋駕駛者的腳部且連接於兩前 側外殼3 9……的前部的腿部護罩40.......從前方覆蓋頭 管2 1且連接於兩腿部護罩40……的前頂外殼4 1、從後方 側覆蓋頭管2 1並且從上方覆蓋主框架22而連接於前頂外 殻4 1的主框架頂外殼42、連接於上述兩前側外殼3 9…… 的下部的上外殻43.......以及從兩側覆蓋油箱34A及置 物箱3 5 A的後側外殼44所構成。 上述乘車用座墊36，爲了要可進行對置物箱35A的 物品的收容及取出，以及對油箱3 4 A進行供油，是作成 可開閉的且配置在後側外殼44的上部，覆蓋後輪WR的 後部上方的後擋泥板45是被連接設置在後側外殼44。 在第4圖中，節流閥主體3 2，是以下述的方式所構 成，用來調節供給到引擎E的空氣量的蝶型的節流閥4 6 是可轉動地被支承在主體部47，並且在連結於節流閥46 且配置在主體部4 7的側邊的節流閥鼓4 8則捲繞連結著節 流閥鋼索4 9。 主體部47’具有朝機車的前後方向延伸的進氣通道 5 0，配置在進氣通道5 0的中間部的節流閥4 6，是橫切過 進氣通道5 0且被固定在可轉動地支承於主體部4 7的閥軸 5 1。節流閥鼓4 8，是在朝向機車的行進方向前方的狀態 被配置在主體部4 7的左側，該節流閥鼓4 8是被固定在上 -10- (7) 1228093 述閥軸5 1的其中一端。並且在節流閥鼓48及主體部47 之間，是設置有將上述節流閥4 6朝向關閉側彈壓的回復 彈簧52，機車的駕駛者藉由抵抗上述回復彈簧52的彈力 而將上述節流閥鋼索進行牽引操作，來將節流閥4 6朝向 開啓側轉動驅動。 在上述主體部47，在與上述節流閥鼓48相反側的側 面也就是右側面，安裝有用來收容控制單元5 3的殼體5 5 。該殼體55，是由：安裝在主體部47的殼體主體56、以 及用來密閉該殼體主體5 6的開口部的蓋板5 7所構成，上 述控制單元5 3，在挾持於殻體主體5 6及蓋板5 7之間的 電路基板5 4上構成了沒有圖示的電路基板。 在上述電路基板54，是連接了用來檢測節流閥46的 開度的節流閥感應器5 8。該節流閥感應器5 8，是由：可 旋轉地鬆動嵌合在殼體主體5 6的旋轉器5 9、從該旋轉器 59朝向電路基板54側突出的導電刷60、60、以及作成與 導電刷60、60滑動接合而被印製在電路基板54的電阻體 6 1所構成，旋轉器5 9，是不能相對旋轉且不會搖晃地被 嵌合在閥軸5 1的另一端。而旋轉器5 9，是與閥軸5 1在 同軸上，貫穿電路基板5 4而可自由旋轉地被支承在突出 設置於蓋板5 7的支軸62。藉由該節流閥感應器5 8，節流 閥4 6的開度會當成電阻體6 1的兩端間電壓而在上述控制 單元5 3側被檢測出。 在較節流閥4 6的更上流側的主體部4 7 ’是設置有開 口於進氣通道5 0的穿孔6 3，貫穿該穿孔6 3而使前端封 -11 - (8) !228〇93 閉部面對於進氣通道5 0的薄壁的有底圓筒狀的檢測筒64 ’是一體地被設置在殼體主體56。 以：緊貼在上述檢測筒64的前端封閉部內面的熱每夂 電阻65、以及在檢測筒64內從上述熱敏電阻65延伸出 來被連接到電路基板54的端子66，構成了進氣溫度感應 器67，控制單元5 3，會因應伴隨著進氣溫度的變化而熱 敏電阻6 5的電阻値的變化而可檢測出電壓變化。並且在 上述檢測筒64內在收容好進氣溫度感應器67之後’會充 塡入由合成樹脂所構成的封裝劑68。 由於在安裝於節流閥主體47的控制單元53的電路基 板54連接著節流閥感應器58及進氣溫度感應器67 ’所 以可以將用來把節流閥感應器5 8及進氣溫度感應器6 7連 接在控制單元5 3的配線作得非常短。 上述殻體5 5的上部，是跨越主體部4 7的上部而延伸 設置到節流閥鼓4 8側，與節流閥鼓4 8開口在同一側的耦 合器69是一體形成在上述殼體55的殻體主體56。 在第3圖，空氣濾淸器3 3所具備的合成樹脂製的濾 淸器盒體70，是以被支承在主框架22的碗狀盒體主體71 、與朝向該盒體主體7 1開口的碗狀的外殻72來將過濾單 元73挾持在7 1、72的周緣部之間且相互結合的構造，濾 淸器盒體7〇內，是被區劃成：外殼72側的未淨化室74 、與在盒體主體7 1側的淨化室75 ◦ 在濾淸器盒體70的盒體主體71，是固定連接著用來 將來自於空氣濾淸器3 3的淨化空氣導入到節流閥主體3 2 -12- (9) 1228093 的 內 流 圖 接 是 連 器 設 氣 鼓 器 丄人· 刖 例 裝 面 置 支 進 的 ί妾胃76 ’ g亥連接管的上流端是伸入到淨化室75 € ^連接管7 6的下流端部，是嵌合著一體設置於節 閥主體32的主體部47的上流側連接筒47a (參照第* °並且用來固定維持連接管7 6對節流閥主體3 2的連 的固疋用帶77是被捲繞在連接管76的下流端部， 耢由螺检構件7 8來鎖裝住固定用帶7 7，而可固定維持 接管76對節流閥主體32的連接狀態。 合併爹照第5圖〜第8圖，在空氣濾淸器3 3的濾淸 盒體70的盒體主體71的下部，是藉由一體成型的方式 置有；I敝板79’該遮蔽板79是從前方覆蓋著配置在空 濾淸器3 3的斜後下方的節流閥主體3 2中的至少節流閥 4 8 ’在上述節流閥主體3 2，由於殻體5 $所具備的耦合 69也被配置在節流閥鼓48側，以上述遮蔽板79也從 方覆蓋了耦合器69。 在對應於上述固定用帶7 7的位置的上述遮蔽板7 9， 如設置有圓形的操作用開口部8 0，在遮蔽板7 9，是安 有可用來開閉操作用開口部8 〇且配置於遮蔽板7 9的前 側的蓋子8 1。 在偏離上述操作用開口部8 0的位置，在遮蔽板7 9設 有支承孔8 2，在由橡膠所構成的蓋子8 1，插通於上述 承孔82的支軸83，是一體地突出設置爲在對支承孔82 行插通時，其前端側直徑可縮小，在支軸8 3的前端是 體地設置有在支承孔82的周圍彈性地卡合於遮蔽板79 背面的複數的卡合爪部8 3 a ..。也就是說蓋子8 1，是 -13- (10) 1228093 在：如第5圖所示的實線所示用來封閉操作用開口部8 0 的位置、與如第5圖的虛線所示將操作用開口部8 0開放 的位置之間，可在上述支承孔8 2的軸線周圍轉動地被安 裝在遮蔽板79。 在蓋子81，是一體地突出設置有在圓周方向分割爲 複數的嵌合筒84，該嵌合筒84是作成在操作用開口部80 的封閉狀態彈性地嵌合於操作用開口部8 0內，設置在該 嵌合筒8 4的前端的複數的卡合爪部8 4 a……是在操作用 開口部8 0的周圍彈性地卡合於遮蔽板7 9的背面，以蓋子 8 1來維持操作用開口部8 0的封閉狀態。 在引擎E的對應於汽缸頭外殼8 7的部分的上述遮蔽 板79的下端，是設置有：當將汽缸頭外殼87卸下來進行 引擎E的閥門裝置的推桿調整時，用來將扳手等的工具 8 6插入到汽缸頭外殼8 7的缺口 7 9 a。 在該實施例中從左側邊覆蓋節流閥主體3 2的節流閥 鼓4 8的合成樹脂製的節流閥鼓護罩1 6 1，是被安裝在上 述空氣濾淸器3 3。也就是說，在空氣濾淸器3 3的濾淸器 盒體7 0的盒體主體7 1的背面左側是一體地設置有以螺栓 構件1 6 2來鎖裝上述節流閥鼓護罩1 6 1的上部的安裝轂部 7 1 a，在上述遮蔽板79的左側下部，是設置有用來與上述 節流閥鼓護罩1 6 1的下部所設置的略L字型的卡合爪部 1 6 1 a卡合的矩形的卡合孔部1 6 3。 而藉由將上述卡合爪部161a卡合在卡合孔163，且 將其下部抵接在上述遮蔽板79的背面的節流閥鼓護罩 -14- 1228093 (11； 1 6 1的上 將節流閥 在引 頭 8 8的 的二次空 體中的管 管路1 6 5 制閥1 6 6 支承的過 上述 架22朝 給管1 6 8 體外殼3 ： 並且 71的背3 靠近上流 設置有從 的空氣供 1 6 8的靠 且藉由卡 體主體7 管1 6 8的 節流 筒 47b ( 部’以螺栓構件1 6 2鎖裝在上述安裝轂部7 ；! a， 鼓護罩安裝在空氣濾淸器33。 擎E的汽缸頭8 8的下部，是連接著接續於汽缸 排氣口（沒有圖示）的排氣管丨64，用來將新鮮 氣供給到從上述排氣D流到排氣管〗64的排出氣 路1 6 5的下流端是被連接到汽缸頭外殼8 7，該 的上流端是被連接到引擎E所支承的二次空氣控 。一次空氣控制閥丨6 6是被連接到主框架2 2所 濾器1 6 7。 過濾器167，是連接著從該過濾器167沿著主框 前方延伸的空氣供給管〗6 8的下流端，該空氣供 的上流端是延伸到空氣濾淸器3 3的上方，在車 8內開放到空氣中。 在空氣濾淸器33的濾淸器盒體7〇的盒體主體 S上部，是設置有用來使上述空氣供給管丨6 8的 端的部分嵌合的嵌合溝槽1 69，並且一體地突出 上方抵接、卡合於該嵌合溝槽1 6 9所嵌合的部分 給管1 68的卡合銷栓1 70。也就是說空氣供給管 近上流端的部分，是藉由嵌合於嵌合溝槽1 69並 合銷栓1 70從上方的抵接、卡合，而被保持在盒 1的背面上部。因此不需要將用來保持空氣供給 專用的箍位器安裝在主框架22。 閥主體3 2的主體部47 —體地具備的下流側連接 參照第4圖），是被連接在進氣管8 9的上流端1228093 (1) Description of the invention [Technical field to which the invention belongs] The present invention relates to a fuel tank mounted on a car body frame, which houses a fuel pump mounted on an upper wall portion of a β oil phase, and uses a passenger seat. The locomotive 'covering the upper part of the fuel tank with the pad especially relates to improvement of the fuel system arrangement structure of the locomotive. [Prior Art] A locomotive that covers an upper part of a fuel tank containing a fuel pump with a seat cushion for riding is a known structure, for example, in Japanese Patent Literature 1. [Patent Document 1] Japanese Patent Publication No. 7-110630 [Summary of the Invention] [Problems to be Solved by the Invention] In a structure in which a fuel pump is mounted on an upper wall portion of a fuel tank, fuel is disposed on the upper wall portion of the fuel tank. The connection part of the pump and the fuel hose needs to avoid the interference of the seat cushion for the passenger on the connection part. In the above-mentioned conventional structure, the height of the seat cushion for the passenger car is set so that the height of the seat cushion does not occur with the connection part The interference position reduces the degree of freedom in setting the height of the seat cushion for riding. The present invention has been made in view of this situation, and an object thereof is to provide a locomotive fuel system configuration structure that can increase the degree of freedom in setting the height of a passenger seat cushion and prevent the passenger seat cushion from interfering with a connection portion to a fuel pump. (2) 1228093 [Means to solve the problem] In order to achieve the above object, the first invention is to accommodate a fuel pump mounted on an upper wall portion of a fuel tank in a fuel tank mounted on a body frame of the fuel tank to ride the vehicle. The locomotive that covers the fuel tank with a seat cushion is characterized in that the fuel pump is mounted on a downwardly recessed pump mounting portion provided on an upper wall portion of the fuel tank, and the pump mounting portion is covered with a casing from above. . With the structure of the first invention, since the pump mounting portion on which the fuel pump is mounted is recessed downward and is provided on the upper wall portion of the fuel tank, even if the connection portion to the fuel pump is arranged on the pump mounting portion In addition, interference with the seat cushion for riding can be prevented, and the degree of freedom in setting the height of the seat cushion for riding can be increased. In addition, since the pump mounting portion is covered by the housing from above, when the passenger car seat cushion is opened to supply fuel to the fuel tank, it is possible to prevent accidental contact with the connection portion and protect the connection portion to the fuel pump. , So that the connection portion is not exposed and an excellent appearance can be obtained. The second invention is the structure according to the first invention, and an insertion hole for inserting the fuel pump into the fuel tank is provided in the pump mounting portion, and the insertion hole is closed from above to be installed in the fuel pump. The upper cover plate is mounted on the pump mounting portion, and the housing is mounted on the cover plate. With this structure, a special member for fixing the housing to the tank side is not required, and parts can be reduced. quantity. A third invention is the structure according to the first or second invention, and the housing is mounted on a bracket for supporting the fuel tank and provided in a vehicle body frame at a position away from the fuel pump. , You do not need special parts to install the shell, which can reduce the number of parts, and -6- (3) 1228093 can firmly support the shell. A fourth invention is an invention according to one of the first to third inventions. A storage box covered with the passenger seat cushion is arranged in front of a fuel tank arranged above the rear wheel, and one of the left and right of the fuel tank is arranged. The front side of the side is provided with the pump mounting portion and the fuel pump, and at the front end portion at the left and right sides of the fuel tank or at the rear end portion at the other left and right sides of the storage box, the fuel pump side The extended hose passes through a gap between the front part of the fuel tank and the rear part of the storage box, and the hose is bent and arranged on the rear side of the storage box to open one of the left and right directions. U shape. With the structure of the fourth invention, the fuel pump can be arranged at a deeper position in the fuel tank, and the hose can be smoothly arranged. That is to say, although the middle portion of the fuel tank becomes shallower because it is disposed above the rear wheels, and the fuel pump is disposed on one of the left and right sides of the fuel tank, the fuel pump can be disposed relatively Deep position, and the hose extending from the fuel pump passes through the notch on the left and right front end of the fuel tank or the left and right rear end of the storage box, and is configured to bend into a slightly U shape Even if the storage box is located in front of the fuel tank, it does not matter, it can avoid the bending of the hose being too large and make it slightly bent, and the hose can be smoothly arranged. The fifth invention is directed to one of the above-mentioned items According to the invention, a plurality of positions around the pump mounting portion are provided on the upper wall portion of the fuel tank, and a seat cushion load supporting position capable of supporting the passenger seat cushion is provided. The passenger seat cushion sinks, and (4) 1228093 supports the load of the passenger seat cushion at a plurality of positions around the pump mounting portion and on the upper wall portion of the fuel tank, so it can suppress the change of the passenger seat cushion. , Can be avoided with the load acting from the drive side of the seat cushion to the housing. [Embodiment] The following is a description of an embodiment of the present invention based on an embodiment of the present invention shown in the drawings. Figures 1 to 18 show the first embodiment of the present invention. Figure 1 is an overall side view of the locomotive, and Figure 2 is a central portion of the locomotive in the front-rear direction with the vehicle body shell removed. Figure 3 is a side view of the engine @ intake system, Figure 4 is an enlarged cross-sectional view taken along line 4-4 of Figure 3, and Figure 5 is an enlarged view of the fifth end of Figure 3, and Figure 6 is Sectional view of line 6-6 of 5_, FIG. 7 is a rear view of the air filter viewed from the direction of the 7th end of FIG. 3, and FIG. 8 is a sectional view of line 8-8 of FIG. 7 Fig. 9 is a 7-end view of Fig. 3, Fig. 10 is a plan view of the intake pipe and the fuel injection valve, and Fig. 11 is a cross-section taken along line 1 1-1 1 of Fig. 10, Fig. 1 2 The figure is a longitudinal sectional view of the rear part of the locomotive. Figure 13 is a sectional view taken along line 1 2 _ _ 1 3 — 1 3, and Figure 14 is a sectional view taken along line 1 4-1 4 of FIG. The figure is an exploded perspective view of the fuel tank, fuel pump, and casing. Figure 16 is an enlarged cross-sectional view taken along line 16--16 in Figure 13 and Figure 17 is shown in Figure 17--17 in Figure 16. FIG. 18 is an enlarged cross-sectional view taken along lines 18 and j ^ in FIG. 13. First, in the first figure, the body frame 20 of the locomotive is provided with a head pipe 21 that supports the front fork 24 in a steerable manner, and extends from the head pipe 21 to the rear-down direction (8) (5) 1228093. A main frame 22 and a pair of left and right rear frames 23 connected to the left and right sides of the main frame 22 and extending upward and rearwardly support the front wheel WF at the lower end of the front fork 24, and the upper part of the front fork 24 is A rod-shaped steering rod 25 is connected to the front fork 24 and supports a front fender 26 for covering the front wheel WF. Referring to FIG. 2 and FIG. 3, the main frame 22 is composed of a square tube with a cross section in a cross section. Suspension plates 27 are fixedly mounted on both sides of the middle portion of the main frame 22. A pivot plate 28 is fixed on both sides of the rear portion of the frame 22. Below the main frame 22, there is an engine E, for example, with the cylinder axis slightly upward and forward. The engine E is supported by the suspension plate 27 ... and the pivot plate 28, and is suspended from the body frame. 2 0. The pivot plate 28 supports a front end portion of the rear fork 29 in a swingable manner, and a rear wheel w R is pivotally supported at a rear end of the rear fork 29. A rear suspension unit 30 is provided between the rear frame 2 3... And the rear fork 29 of the vehicle body frame 20. The engine E constitutes a power unit p together with the transmission M, and the output of the transmission M is transmitted to the rear wheels w R through the chain 31. Above the engine E, a throttle body 3 2 and an air filter 3 3 more forward than the throttle body 3 2 are disposed, and a fuel tank 3 4 A is disposed above the rear wheel WR. The storage phase j 5 A disposed in front of the fuel tank 3 4 A and above the oil phase 3 4 A can be covered with a seat cushion 36 for a two-pass type passenger car that can be opened and closed, for example. 20. The body frame 20 'is installed to cover: the body frame (6) 1228093 part of the above engine E, the throttle body 3 2, the air filter 3, the fuel tank 34A, and the storage box 35A. A synthetic resin body shell 38, the body shell 38, is a front shell 3 disposed on the left and right sides of the main frame 22, 9 ... covering the driver's feet from the front and The front leg shields 40 connected to the front portions of the two front housings 3 9... Cover the head pipe 21 from the front and the front top housings 4 connected to the two leg shields 40. The main frame top case 42 which covers the head pipe 21 from the rear side and the main frame 22 from above is connected to the front top case 41, and the upper case 43 which is connected to the lower part of the two front side cases 3 9 ... ..... and a rear casing 44 that covers the fuel tank 34A and the storage box 3 5 A from both sides. The above-mentioned passenger seat cushion 36 is configured to be openable and closable and disposed on the upper part of the rear casing 44 so as to allow the storage and removal of articles in the opposite storage box 35A and the fuel tank 34A. A rear fender 45 above the rear portion of the wheel WR is connected to the rear case 44. In FIG. 4, the throttle body 32 is configured in the following manner, and a butterfly-type throttle valve 4 6 for adjusting the amount of air supplied to the engine E is rotatably supported by the body portion 47. A throttle wire 49 is wound around a throttle drum 4 8 connected to the throttle 46 and disposed on the side of the main body portion 4 7. The main body portion 47 'has an air intake passage 50 extending in the front-rear direction of the locomotive, and a throttle valve 46 arranged in the middle portion of the air intake passage 50 is transverse to the air intake passage 50 and is fixed to be rotatable. The valve shaft 51 is supported on the main body portion 47. The throttle drum 48 is disposed on the left side of the main body portion 4 in a state facing forward in the traveling direction of the locomotive. The throttle drum 48 is fixed to the upper -10- (7) 1228093. The valve shaft 5 One of the ends. Further, a return spring 52 is provided between the throttle drum 48 and the main body portion 47 to urge the throttle valve 46 toward the closed side, and the driver of the locomotive resists the elastic force of the return spring 52 to reduce the throttle. The throttle valve cable performs a traction operation to drive the throttle valve 46 to the open side. In the main body portion 47, a casing 5 5 for accommodating the control unit 5 3 is attached to a side surface opposite to the throttle drum 48, that is, a right side surface. The casing 55 is composed of a casing main body 56 attached to the main body portion 47 and a cover plate 5 7 for closing the opening of the casing main body 56. The control unit 53 is held in the casing. A circuit board (not shown) is formed on the circuit board 54 between the body main body 56 and the cover plate 57. The circuit board 54 is connected to a throttle sensor 58 for detecting the opening degree of the throttle valve 46. The throttle sensor 58 is composed of a rotator 59 which is rotatably fitted in the housing body 56 and conductive brushes 60 and 60 protruding from the rotator 59 toward the circuit board 54 side, and is made of The rotator 59 is composed of a resistor 61 which is in sliding contact with the conductive brushes 60 and 60 and is printed on the circuit board 54. The rotator 59 is fitted to the other end of the valve shaft 51 so as not to rotate relative to each other. The rotator 59 is coaxial with the valve shaft 51, and is rotatably supported by a support shaft 62 protrudingly provided on the cover plate 57 through the circuit board 54. With this throttle sensor 58, the opening degree of the throttle valve 46 is detected as the voltage between both ends of the resistor 61 and detected on the control unit 53 side. The main body portion 4 7 ′ on the upstream side from the throttle valve 4 6 is provided with a perforation 6 3 which is opened in the intake passage 50 and penetrates through the perforation 6 3 so that the front end seal -11-(8)! 228. 93 The thin-walled bottomed cylindrical detection tube 64 ′ with the closed surface facing the intake passage 50 is integrally provided in the case body 56. The heat resistance 65 closely attached to the inner surface of the front end closed portion of the detection tube 64 and the terminal 66 extending from the thermistor 65 in the detection tube 64 and connected to the circuit board 54 constitute the intake air temperature. The inductor 67 and the control unit 5 3 can detect a change in voltage in response to a change in the resistance 热 of the thermistor 65 as the intake air temperature changes. After the intake air temperature sensor 67 is housed in the detection tube 64, a sealing compound 68 made of a synthetic resin is filled. Since the throttle valve sensor 58 and the intake air temperature sensor 67 'are connected to the circuit board 54 of the control unit 53 mounted on the throttle body 47, the throttle valve sensor 58 and the intake air temperature can be used. The wiring of the inductor 67 to the control unit 53 is made very short. The upper part of the housing 55 is extended to the throttle drum 48 side across the upper part of the main body part 47, and the coupler 69 on the same side as the opening of the throttle drum 48 is integrally formed in the housing. 55's housing body 56. In FIG. 3, a synthetic resin filter case 70 included in the air filter 33 is a bowl-shaped case main body 71 supported by the main frame 22 and opening toward the case main body 71. The bowl-shaped casing 72 is used to hold the filter unit 73 between the peripheral parts of 71 and 72 and are combined with each other. The filter case 70 is divided into: an unpurified room on the casing 72 side 74. And the clean room 75 on the side of the box body 71 1 ◦ The box body 71 of the filter box 70 is fixedly connected to introduce purified air from the air filter 33 into the throttle The internal flow diagram of the valve body 3 2 -12- (9) 1228093 is connected with an air drum device. For example, the upper end of the 76 'ghai connection tube is extended to the Clean room 75 € ^ The downstream end of the connection pipe 7 6 is fitted with an upstream-side connection cylinder 47a (refer to * °) fixed to the main body 47 of the throttle body 32 integrally. The continuous fixing tape 77 of the throttle body 32 is wound around the downstream end of the connection pipe 76, and is locked and fixed by a screw inspection member 78. 7 7, and the connection state of the connecting pipe 76 to the throttle body 32 can be fixedly maintained. According to FIGS. 5 to 8, the lower part of the box body 71 of the filter box body 70 of the air filter 3 3 is merged. It is provided by integral molding; the I plate 79 'is a cover plate 79 that covers at least a throttle valve in the throttle body 32 disposed at the obliquely rear and lower part of the air filter 33 from the front. 4 8 ′ In the above-mentioned throttle body 3 2, the coupling 69 included in the housing 5 is also disposed on the throttle drum 48 side, and the above-mentioned shielding plate 79 also covers the coupler 69 from the side. If the shielding plate 7 9 at the position of the fixing belt 7 7 is provided with a circular operation opening 80, the shielding plate 7 9 is provided with an opening 80 for opening and closing the operation and is disposed in the shielding. The cover 81 on the front side of the plate 79 is provided with a support hole 82 in the shielding plate 79 at a position deviating from the operation opening 80, and the cover 81 made of rubber is inserted into the receiving hole. The support shaft 83 of 82 is integrally provided to protrude so that the diameter of the front end side can be reduced when the support holes 82 are inserted into the support shaft 82. The end is provided with a plurality of engaging claws 8 3 a that are elastically engaged with the back of the shielding plate 79 around the support hole 82. That is, the cover 8 1 is -13- (10) 1228093 at : The position between the position for closing the operation opening 80 as shown by the solid line in FIG. 5 and the position for opening the operation opening 80 as shown by the dotted line in FIG. The cover 82 is rotatably mounted around the axis of the hole 82. The cover 81 is integrally provided with a fitting cylinder 84 that is divided into a plurality of parts in the circumferential direction. The fitting cylinder 84 is formed in the opening 80 for operation. The closed state is elastically fitted into the operation opening portion 80, and a plurality of engaging claw portions 8 4 a provided at the front end of the fitting cylinder 84 are elastically formed around the operation opening portion 80. It engages with the back surface of the shielding plate 79, and maintains the closed state of the operation opening part 80 with the cover 81. The lower end of the shielding plate 79 of the portion of the engine E corresponding to the cylinder head housing 87 is provided with a wrench, etc., when the cylinder head housing 87 is detached to perform pusher adjustment of the valve device of the engine E. The tool 8 6 is inserted into the notch 7 9 a of the cylinder head housing 8 7. In this embodiment, the throttle drum cover 1 6 1 made of synthetic resin, covering the throttle drum 32 of the throttle body 32 from the left side, is attached to the air filter 33 described above. That is to say, a bolt member 1 6 2 is integrally provided on the left side of the back side of the case main body 7 1 of the filter case 7 0 of the air filter 33, and the throttle drum cover 1 is locked with the bolt member 1 6 2. The upper mounting hub 7 1 a of the upper part of 61 is provided with a slightly L-shaped engaging claw part provided at the lower part of the left side of the shielding plate 79 and the lower part of the throttle drum cover 1 6 1. 1 6 1 a Rectangle engaging hole portion 1 6 3. The engaging claw portion 161a is engaged with the engaging hole 163, and the lower portion of the engaging claw portion 161a is abutted on the throttle drum cover -14- 1228093 (11; 1 6 1) on the back surface of the shielding plate 79. The pipe line of the throttle valve in the secondary hollow body of the lead 8 8 1 6 5 The valve 22 is supported by the above frame 22 toward the supply pipe 1 6 8 body casing 3: and the back 3 of 71 approaches The upper part is provided with an air supply 1 6 8 and a restrictor 47b (part '6') which is locked to the above-mentioned installation hub 7 by a bolt body 1 6 2 through a card body main body 7 pipe 1 6 2; a, a drum The shroud is installed on the air filter 33. The lower part of the cylinder head 88 of the engine E is connected to an exhaust pipe 64 connected to the cylinder exhaust port (not shown), and is used to supply fresh air from the above. Exhaust D flows to the exhaust pipe 64. The downstream end of the exhaust gas path 1 6 5 is connected to the cylinder head housing 87. The upstream end is the secondary air control supported by the engine E. Primary air The control valve 6 6 is a filter 1 6 7 connected to the main frame 2 2. The filter 167 is an air supply pipe connected from the filter 167 along the front of the main frame. 6 8 The upstream end of the air supply is extended above the air filter 33, and is opened into the air in the car 8. The box body S of the filter case 70 of the air filter 33 The upper part is provided with a fitting groove 1 69 for fitting a part of the end of the air supply pipe 丨 6 8, and integrally protrudes upward to abut and engage with the fitting groove 169. The engaging pin 1 70 of the part supply pipe 1 68. In other words, the part near the upstream end of the air supply pipe is abutted and engaged with the fitting pin 1 70 by fitting into the fitting groove 1 69 It is held on the upper part of the back of the box 1. Therefore, it is not necessary to attach a special clamp for holding the air supply to the main frame 22. The main body portion 47 of the valve body 3 2 is provided with the downstream side connection as a whole. (Picture), is connected to the upstream end of the intake pipe 8 9
-15- (12) 1228093 ，而進氣管8 9的下流端則是連接在引擎E的汽缸頭8 8的 上部。 合倂參照第9圖〜第1 1圖，進氣管8 9，是將節流閥 主體3 2、及在該節流閥主體3 2的斜後下方的汽缸頭8 8 連結在一起且作成彎曲爲略C字型，該進氣管8 9，是以 燒接在其表面由橡膠所構成的被覆材料9 0所覆蓋，藉由 將上述節流閥主體3 2的下流側連接筒47b緊密地嵌合於 一體地設置在該被覆材料90的連接筒部90a，來將節流 閥主體3 2連接在進氣管8 9。 在進氣管8 9，是安裝有用來將燃料噴射到汽缸頭8 8 內的燃料噴射閥9 1，該燃料噴射閥9 1的開閉作動，是藉 由被收容固定在上述節流閥主體3 2的主體部4 7所安裝的 殼體5 5內的控制單元5 3所控制的。 在進氣管8 9是設置有朝向汽缸頭8 8側開口的安裝子匕 92，是作成將前端面對於進氣管8 9內且將燃料噴射閥9工 的前端部氣密性地嵌合於安裝孔9 2。燃料噴射閥9 1的後 端部是液密性地被嵌合在蓋子93，該蓋子93被鎖裝在進 氣管8 9。也就是說，燃料噴射閥9 1，是作成被夾在進氣 管89及蓋子93之間而被安裝在進氣管89。 在上述蓋子93’是設置有使其下流端連通到上述燃 料噴射閥9 1的後端部內的燃料供給通路94 ,、'审潘μ > 埋通$丨」該燃 料供給通路94的上流端的入口側連接管95㈢μ孔組_ ^ ^D疋被凸緣連結 到蓋子93。 在上述蓋子93,是設置有從上述燃料供給通路W的 -16- (13) 1228093 途中分歧的回流通路9 6，在該回流通路9 6連接著壓力調 整閥9 7。 該壓力調整閥9 7的閥殼體9 8，在鄰接於上述燃料噴 射閥9 1的位置是配置成與該燃料噴射閥9 1平行，閥殼體 9 8的上端部，是被安裝在蓋子9 3，且是使液密性地連通 到上述回流通路9 6的連接管9 9中介在閥殼體9 8的上端 部與蓋子9 3之間。也就是說壓力調整閥9 7，是作成不會 從蓋子93朝側邊突出，且是配置成從蓋子93朝下方延伸 〇 在該閥殼體9 8的下部，是結合有用來將膜片丨〇 〇的 周緣部挾持在閥殼體9 8之間的外殼1 〇 1，在閥殻體9 8及 膜片1 00之間，形成有連通到上述回流通路96的閥室 M2，在膜片1〇〇及外殼101間形成了彈簧室1〇3。 在閥殼體98，是一體地設置有在凸緣結合於蓋子93 的入口連接管9 5的下方且朝向與該入口連接管9 5相同側 延伸的回流側連接管部1 04，連通於該回流側連接管部 104的圓筒狀的閥座構件1〇5，是面對於閥室102的中央 部且被嵌合固定使其一部分突出於膜片1 00側。而在膜片 1 00的中央部是保持著可頂抵於上述閥座構件1 05的閥室 1 〇2側的端部且可稍微搖動的閥體1 06，在彈簧室1 03， 是收容有在外殼101及膜片100之間壓縮設置的彈簧107 ，用來發出使膜片100朝向上述閥室102側撓曲的彈力。 在這種壓力調整閥97，如果用來將膜片1 00朝向彈 簧室1 〇3側彈壓的閥室1 02側的液壓力，超過將膜片1 00 -17- (14) 1228093 朝向閥室1 02側彈懕的彈簧室1 03側的彈力的話，膜片 1 0 0會朝向彈簧室1 0 3側撓曲而閥體1 0 6會從閥座構件 1 0 5分離，經由回流通路1 0 6而連通到閥室1 0 2的燃料供 給通路9 4的液壓也就是對燃料噴射閥9 1的燃料供給壓力 ，會被調整成不超過設定壓力。 壓力調整閥9 7，由於如上述是被配置在與燃料噴射 閥9 1鄰接的位置，所以可以縮短連結於燃料噴射閥9 1及 壓力調整閥9 7之間的燃料供給通路94的長度，而可防止 流通於該燃料供給通路94的燃料的溫度變得很高。 在第1 2圖〜第1 4圖，油箱3 4 A，是將下部油箱半體 1 1 0及上部油箱半體1 1 1相互結合所構成的構造，在兩油 箱半體1 1 0、1 1 1的結合部整個外周，是一體地形成了朝 外側伸出的鍔部1 1 2。該油箱3 4 A，是被支承在車體框架 2 0的兩後框架2 3......，在後框架2 3......，是設置有：用 來支承上述油箱3 4 A的前部的支架1 1 3.......以及用來支 承上述油箱3 4 A的後部的支承轂部1 1 4......。而被載置於 上述支架1 1 3......上的上述鍔部1 1 2，是藉由螺栓1 1 5… …及焊接螺母116......而被鎖裝在支架113......，被載置 於支承轂部1 1 4……上的上述鳄部1 1 2，是藉由螺栓U 7 ......被鎖裝在支承轂部1 1 4……。 油箱34A是配置在後輪WR的上方，爲了避免後輪 WR的干涉，油箱3 4 A的底部也就是下部油箱半體1 1 〇的 底部’其左右方向中央部是朝上方膨脹形成。也就是說， 油箱34A，其左右方向兩側部34L、34R是形成爲較中央 (15) 1228093 部34C更深。 合倂參照第1 5圖，在油箱34 A內，收容著燃料泵浦 1 1 8，該燃料泵浦1 1 8是被安裝在油箱34A的上壁部也就 是上部油箱半體1 1 1。 在油箱3 4 A的左右其中一側（在該實施例中是左側 部3 4L )的上壁前部，是設置有朝下方凹陷且平坦的泵浦 安裝部Π 9，在油箱3 4 A的左右另一側（在該實施例中是 右側部34R )的上壁前部是設置有朝前下方傾斜的軟管配 置部1 2 0。 在上述泵浦安裝部1 1 9，是設置有用來將燃料泵浦 1 1 8插入到油箱3 4 A內的例如橢圓狀的插入孔1 2 1。也就 是說燃料泵浦1 1 8，是配置在油箱3 4 A的左右其中一側（ 在該實施例中是左側部3 4L )。 在燃料泵浦1 1 8的下部是連接著沒有圖示的過濾、器， 用來覆蓋該過濾器的過濾器室1 2 2，是作成在該過濾器室 1 22內保持預定的液面高度而被支承在燃料泵浦丨丨8的下 部，用來檢測油箱34A內的燃料液面的浮標123，是被支 承在燃料泵浦1 1 8。 在上述泵浦安裝部1 1 9的上面部，是焊接著包圍上述 插入孔121而形成爲橢圓狀的安裝板124。該安裝板124 ’是在圓周方向交互連接形成：焊接於泵浦安裝部丨丨9的 複數個例如6個低位部1 2 4 a......、以及隆起成梯形的複 數個例如6個高位部124b……，各低位部124a......是分 別被焊接在泵浦安裝部1 1 9的上面部。 (16) 1228093 合倂參照第16圖及第17圖，在上述各高位部124b ·.····的下面部，是焊接著從局位邰1 2 4 b......朝上方突出 的螺栓1 2 5......，是作成從上方封住上述插入孔1 2 1，而 將上述各螺栓1 2 5……插穿到設置在燃料泵浦1 1 8的上端 的橢圓形平板狀的蓋板1 26的外周部，藉由將螺合於螺栓 125……的螺母1 2 7……鎖緊，來將蓋板1 2 6也就是燃料 泵浦1 1 8安裝在泵浦安裝部1 1 9。 並且在泵浦安裝部119與上述蓋板126之間，是中介 安裝有橡膠製的墊圈128，該墊圈128，是具有用來分別 配置上述安裝板1 2 4的高位部1 2 4 b......的開口部1 2 9...... 而形成爲橢圓狀，藉由將螺合於上述各螺栓125……的螺 母127......鎖緊，則墊圈1 2 8會被夾壓在安裝板1 2 4的低 位部1 2 4 a......及蓋板1 2 6之間，並且以安裝板1 2 4的內 外，被夾壓在泵浦安裝部1 1 9及上述蓋板1 2 6之間。 在上述燃料泵浦1 1 8的上端是連接著彎曲爲略L字型 的吐出管1 3 0，燃料泵浦1 1 8會從吐出管1 3 0將燃料排出 。而在上述蓋板1 2 6，是固定安裝著液密性地貫穿於該蓋 板126並且在燃料泵浦1 18的側邊延伸到油箱34A的下 部的回流管1 3 1，在蓋板126的上方，回流管1 3 1，是彎 曲成與上述吐出管130同樣的略L字型。 在蓋板126的上方，上述吐出管130及回流管131， 是朝向右斜前方平行配置，在吐出管1 3 0，是連接著燃料 軟管1 3 2的上流端，在回流管1 3 1，是連接著回流軟管 1 3 3的下流端，該回流軟管1 3 3的上流端是連接在上述壓 -20- (17) 1228093 力調整閥97的回流側連接管部1 〇4。-15- (12) 1228093, and the downstream end of the intake pipe 89 is connected to the upper part of the cylinder head 88 of the engine E. With reference to Figs. 9-11, the intake pipe 89 is formed by connecting the throttle body 32 and the cylinder head 8 8 slantingly below the throttle body 32. Bent into a slightly C-shape, the air inlet pipe 89 is covered with a covering material 90 made of rubber on its surface, and the downstream-side connecting cylinder 47b of the throttle body 32 is tightly closed. A connection cylinder portion 90a integrally provided in the covering material 90 is fitted to the ground to connect the throttle body 32 to the intake pipe 89. A fuel injection valve 9 1 for injecting fuel into the cylinder head 8 8 is attached to the intake pipe 8 9. The opening and closing operation of the fuel injection valve 9 1 is accommodated and fixed to the throttle body 3. The main body 4 of 2 is controlled by a control unit 5 3 inside a housing 5 5. The intake pipe 89 is provided with a mounting bracket 92 which is open toward the cylinder head 88 side, and the front end portion of the intake pipe 89 is fitted into the intake pipe 89 and the front end portion of the fuel injection valve 9 is hermetically fitted. In the mounting hole 9 2. The rear end portion of the fuel injection valve 91 is fitted to the cover 93 in a liquid-tight manner, and the cover 93 is locked to the intake pipe 89. That is, the fuel injection valve 91 is sandwiched between the intake pipe 89 and the cover 93 and is attached to the intake pipe 89. The cover 93 'is provided with a fuel supply path 94 which communicates its downstream end with the rear end portion of the fuel injection valve 91, and "Seppan > Buried through $ 丨" The upstream end of the fuel supply path 94 The inlet-side connection tube 95㈢μ hole group _ ^ ^ D 疋 is connected to the lid 93 by a flange. The cover 93 is provided with a return flow path 96 which is branched from -16- (13) 1228093 of the fuel supply path W, and a pressure adjustment valve 97 is connected to the return flow path 96. The valve housing 9 8 of the pressure regulating valve 97 is disposed parallel to the fuel injection valve 91 at a position adjacent to the fuel injection valve 91, and an upper end portion of the valve housing 9 8 is mounted on a cover. 9 3, and a connection pipe 9 9 that communicates liquid-tightly to the return passage 9 6 is interposed between the upper end portion of the valve housing 98 and the cover 93. In other words, the pressure regulating valve 97 is made so as not to protrude from the cover 93 to the side, and is arranged to extend downward from the cover 93. The lower part of the valve housing 98 is combined with a diaphragm 丨A peripheral edge portion of 〇0 holds the housing 1 between the valve housing 98, and a valve chamber M2 communicating with the return passage 96 is formed between the valve housing 98 and the diaphragm 100. A spring chamber 103 is formed between the sheet 100 and the casing 101. The valve housing 98 is integrally provided with a return-side connection pipe portion 104 that is provided below the inlet connection pipe 95 that is flange-bonded to the cover 93 and extends toward the same side as the inlet connection pipe 95, and communicates with this. The cylindrical valve seat member 105 of the return-side connection pipe portion 104 faces the center of the valve chamber 102 and is fitted and fixed so that a part thereof protrudes from the diaphragm 100 side. In the central part of the diaphragm 100, a valve body 106 that holds the end portion that can abut against the valve chamber 100 side of the valve seat member 105 and can be slightly rocked is accommodated in the spring chamber 103. A spring 107 is provided between the casing 101 and the diaphragm 100 to compress the diaphragm 100 toward the valve chamber 102 side. In such a pressure regulating valve 97, if the hydraulic pressure of the valve chamber 102 side which is used to spring the diaphragm 100 toward the spring chamber 103 is higher than the pressure of the diaphragm 100 00 -17- (14) 1228093 toward the valve chamber 1 02 spring side spring chamber 1 03 side spring, the diaphragm 1 0 0 will bend toward the spring chamber 10 3 side and the valve body 1 0 6 will be separated from the seat member 1 0 5 through the return path The hydraulic pressure of the fuel supply passage 94, which is connected to the valve chamber 10, 102, that is, the fuel supply pressure to the fuel injection valve 91, is adjusted to not exceed the set pressure. Since the pressure adjustment valve 97 is disposed adjacent to the fuel injection valve 91 as described above, the length of the fuel supply path 94 connected between the fuel injection valve 91 and the pressure adjustment valve 97 can be shortened, and It is possible to prevent the temperature of the fuel flowing through the fuel supply path 94 from becoming high. In FIGS. 12 to 14, the fuel tank 3 4 A is a structure in which a lower fuel tank half 1 10 and an upper fuel tank half 1 1 1 are combined with each other. In the two fuel tank half 1 1 0, 1 The entire outer periphery of the joint portion 1 1 is integrally formed with a crotch portion 1 1 2 protruding outward. The fuel tank 3 4 A is two rear frames 2 3... Supported on the body frame 20. The rear frame 2 3... Is provided to support the fuel tank 3. A bracket 1 1 at the front of the 4 A 3... And a support hub 1 1 4... For supporting the rear of the fuel tank 3 4 A. The crotch 1 1 2 placed on the bracket 1 1 3 ... is locked to the bracket by bolts 1 1 5 ... and welding nuts 116 ... 113 ..., the crocodile portion 1 1 2 placed on the supporting hub portion 1 1 4 ... is locked to the supporting hub portion 1 1 by a bolt U7 ... 4 ……. The fuel tank 34A is disposed above the rear wheel WR. In order to avoid interference from the rear wheel WR, the bottom of the fuel tank 34A, that is, the bottom of the lower fuel tank half 1 10, is formed by expanding in the left-right center. That is, the fuel tank 34A is formed deeper in the left and right side portions 34L and 34R than the central (15) 1228093 portion 34C. With reference to FIG. 15, in a fuel tank 34 A, a fuel pump 1 1 8 is housed. The fuel pump 1 1 8 is mounted on an upper wall portion of the fuel tank 34A, that is, an upper fuel tank half 1 1 1. On the left and right sides of the fuel tank 3 4 A (the left side part 34L in this embodiment), the front wall of the upper wall is provided with a recessed and flat pump mounting portion Π 9, and the fuel tank 3 4 A On the left and right sides (the right side portion 34R in this embodiment), a front portion of the upper wall is provided with a hose arrangement portion 120 that is inclined downward and forward. The pump mounting portion 1 1 9 is provided with, for example, an oval insertion hole 1 2 1 for inserting the fuel pump 1 1 8 into the fuel tank 3 4 A. That is to say, the fuel pump 1 1 8 is disposed on one of the left and right sides of the fuel tank 3 4 A (the left side portion 34L in this embodiment). A filter chamber (not shown) is connected to a lower part of the fuel pump 1 1 8 to cover the filter. The filter chamber 1 2 2 is formed to maintain a predetermined liquid level in the filter chamber 1 22. The buoy 123, which is supported at the lower portion of the fuel pump 8 and used to detect the fuel level in the fuel tank 34A, is supported at the fuel pump 1 1 8. A mounting plate 124 formed in an elliptical shape surrounding the insertion hole 121 is welded to the upper surface of the pump mounting portion 119. The mounting plate 124 ′ is formed by alternately connecting in the circumferential direction: a plurality of, for example, 6 low-level portions 1 2 4 a ... welded to the pump mounting portion 丨 丨, and a plurality of ridges having a trapezoidal shape such as 6 Each of the high-level portions 124b ..., and each of the low-level portions 124a ... is welded to the upper surface of the pump mounting portion 1 19, respectively. (16) 1228093 Combined with reference to Figure 16 and Figure 17, the lower part of each of the above high positions 124b is welded from the position 邰 1 2 4 b ... The protruding bolts 1 2 5... Are formed to seal the insertion holes 1 2 1 from above, and the bolts 1 2 5... Are inserted into the upper end of the fuel pump 1 1 8. The outer peripheral portion of the oval flat cover plate 1 26 is fixed to the cover plate 1 2 6 which is the fuel pump 1 1 8 by tightening the nuts 1 2 7 ... screwed to the bolts 125 ... Pump mounting section 1 1 9. A rubber gasket 128 is interposed between the pump mounting portion 119 and the cover plate 126, and the gasket 128 has a high portion 1 2 4 for arranging the mounting plates 1 2 4 b. The openings 1 2 9 ... are formed into an oval shape, and the nuts 127 ... screwed onto the bolts 125 ... are locked, and the washer 1 2 8 will be clamped between the lower part 1 2 4 a ... of the mounting plate 1 2 4 and the cover plate 1 2 6 and will be clamped to the pump for installation inside and outside the mounting plate 1 2 4 Between the part 1 1 9 and the above cover 1 2 6. At the upper end of the fuel pump 1 1 8 is a discharge pipe 130 that is bent into a slightly L-shape, and the fuel pump 1 1 8 discharges fuel from the discharge pipe 130. The cover plate 1 2 6 is a return pipe 1 3 1 which is fixedly installed through the cover plate 126 in a liquid-tight manner and extends to the lower portion of the fuel tank 34A on the side of the fuel pump 118. Above, the return pipe 1 3 1 is bent into a slightly L-shape similar to the discharge pipe 130 described above. Above the cover plate 126, the above-mentioned discharge pipe 130 and the return pipe 131 are arranged in parallel diagonally forward to the right, and the discharge pipe 1 3 0 is an upstream end connected to the fuel hose 1 3 2 and is connected to the return pipe 1 3 1 The downstream end of the return hose 1 3 3 is connected, and the upstream end of the return hose 1 3 3 is connected to the return side connection pipe portion 104 of the pressure -20- (17) 1228093 force adjustment valve 97.
在沿著上述吐出管1 3 0及回流管1 3 1的指向方向的油 箱34A的前端，也就是在左側前部配置著燃料泵浦118 的油箱3 4 A的右側前端的鍔部1 1 2，設置有缺口 1 3 5，該 缺口 1 3 5形成有讓燃料軟管1 3 2及回流軟管1 3 3通過鍔部 1 1 2與配置在油箱3 4 A前方的置物箱3 5 A之間的空間，燃 料軟管1 3 2及回流軟管1 3 3，會從吐出管1 3 0及回流管 1 3 1經由軟管配置部1 2 0上而從上述缺口 1 3 5朝下方延伸 ，並且在置物箱3 5 A的後方彎曲成朝向該置物箱3 5 A的 左側延伸。也就是說連接於吐出管1 3 0及回流管1 3 1的燃 料軟管1 3 2及回流軟管1 3 3，是在置物箱3 5 A後方彎曲配 置成朝左側打開的略U字型。 在置物箱3 5 A的左側，雖然燃料軟管丨3 2及回流軟 管1 3 3是倂行朝前方延伸，而燃料軟管丨3 2的下流端，是At the front end of the fuel tank 34A along the directions of the discharge pipe 130 and the return pipe 1 31, that is, the fuel tank 3 4 A with the fuel pump 118 disposed on the front left side 1 A 2 on the right front end A notch 1 3 5 is provided, and the notch 1 3 5 is formed to allow the fuel hose 1 3 2 and the return hose 1 3 3 to pass through the crotch 1 1 2 and the storage box 3 5 A disposed in front of the fuel tank 3 4 A. The space between the fuel hose 1 3 2 and the return hose 1 3 3 extends from the discharge pipe 1 3 0 and the return pipe 1 3 1 through the above-mentioned notch 1 3 5 through the hose arrangement portion 1 2 0. And bent behind the storage box 3 5 A so as to extend toward the left side of the storage box 3 5 A. In other words, the fuel hose 1 3 2 and the return hose 1 3 3 connected to the discharge pipe 1 3 0 and the return pipe 1 3 1 are slightly U-shaped bent and arranged to open to the left behind the storage box 3 5 A. . On the left side of the storage box 3 5 A, although the fuel hose 丨 3 2 and the return hose 1 3 3 are limping forward, the downstream end of the fuel hose 丨 3 2 is
被連接在局壓過濾器136’該咼壓過濾器136是在置物箱 35A的前部左側以支承構件134被支承在其中一邊的後框 架Μ的前部，上流端被連接在高壓過濾器136的燃料軟 管，是被連接到用來將燃料供給到燃料噴射閥91的 蓋子的入口側連接管95。並且上述高壓過濾器136, 是在藉由將主框架頂外殼42卸下而能夠容易進行維修的 位置，藉由上述支承構件134被支承在後框架23。 燃料軟管 壓力調整閥9 7 到燃料噴射閥 132及回流軟管133,是連接在蓋子93及 ，來自於燃料泵浦1 1 8的燃料是往復循環 19〗的附近的壓力調整閥97,即使將引擎£ -21 - (18) 1228093 配置在燃料軟管1 3 2與回流軟管1 3 3的下方，也可防止燃 料的溫度上升。 上述泵浦安裝部119及軟管配置部120，是以用來覆 盍燃料泵浦1 1 8的上端、燃料軟管1 3 2、及回流軟管1 3 3 的外殼138從上方被覆蓋著，該外殼138，是被鎖裝在固 定於上述燃料泵浦1 1 8的蓋板1 2 6的一對支承構件〗3 9、 1 3 9。也就是說，外殼1 3 8，是經由支承構件1 3 9、丨3 9而 被安裝在蓋板126。 支承構件1 3 9、1 3 9，是隔著油箱3 4 A的插入孔1 1 9 相互配置在相反側，而且是藉由用來將燃料泵浦丨丨8的蓋 板1 2 6鎖裝在安裝板1 2 4的六組螺栓1 2 5......及螺母1 2 7 ......中的各~對兩組的螺栓1 2 5......及螺母1 2 7......而被 鎖裝在蓋板1 2 6，是形成爲從蓋板1 2 6朝上方隆起。 並且在各支承構件1 3 9、1 3 9的上部內面，固定著焊 接螺母1 4 0、1 4 〇，外殻1 3 8是被載置於支承構件1 3 9、 1 3 9上，插穿外殻丨3 8及支承構件丨3 9、丨3 9的螺栓構件 1 4 1、1 4 1是被螺合在焊接螺母1 4 〇、1 4 0。 在遠離燃料泵浦1 1 8的位置也就是外殼1 3 8的右端部 ’是作成支承油箱3 4 A的右側前部，且是被支承在右側 後框架2 3所固定的支架1 1 3，如第1 8圖所示，是藉由螺 栓11 5及焊接螺母丨丨6，與油箱3 4 A的右側前部的鍔部 1 1 2，被鎖裝在支架1 1 3。 置物箱3 5 A的下部，如第12圖所示，是經由一對安 裝構件1 43……而被支承在兩後框架23……的前部間所設 -22- (19) 1228093 置的支承板1 4 2上，置物箱3 5 A的後部的左右上端部， 如第 1 8圖所不，是經由安裝構件〗4 4......被支承在支架 113......的前部。 在一體地設置於置物箱3 5 A的後部的左右上端的支 承鍔部3 5 a......及支架1 1 3......的前部之間是分別中介安 裝者安裝構件1 4 4......，在支承鍔部3 5 a.......抵接於該 支承鍔邰3 5 a的上面部的合成樹脂製的墊片1 4 9.......以 及在安裝構件144……，是插穿著金屬製圓筒狀的軸環 145......，在上述墊片149……及軸環145的上端是抵接 著金屬製的墊片148……。具有卡合於墊片148的卡止頭 邰147a的螺栓147，是插穿於墊片148......及軸環145… …’焊接螺母146......是被固定在支架113......的前部下 面，藉由將螺合於焊接螺母146……的上述螺栓1 4 7…… 鎖緊，則讓置物箱3 5 A的後部左右上端被支承在支架1 1 3 乘車用座墊3 6的前端，是經由鉸鏈1 5 0而可開閉地 被支承在置物箱3 5 A的前端中央上部，當將乘車用座墊 3 6關閉時用來支承該乘車用座墊3 6的後部的支承板1 5 1 是設置在兩後框架23......的後部間，固定於乘車用座墊 36的底板36a的下面部的一對彈性材料153……是抵接於 支承板1 5 1。在支承板1 5 1，是安裝著扶手桿1 5 2的兩端 〇It is connected to a local pressure filter 136 ′. The pressure filter 136 is a front part of a rear frame M supported by a support member 134 on the left side of the front part of the storage box 35A, and the upstream end is connected to the high-pressure filter 136. The fuel hose is connected to an inlet-side connection pipe 95 of a cover for supplying fuel to the fuel injection valve 91. The high-pressure filter 136 is supported at the rear frame 23 by the support member 134 at a position where maintenance can be easily performed by removing the main frame top case 42. The fuel hose pressure regulating valve 9 7 to the fuel injection valve 132 and the return hose 133 are connected to the cap 93 and the pressure regulating valve 97 near the fuel pump 1 1 8 is a reciprocating cycle 19, even though Placing the engine £ -21-(18) 1228093 under the fuel hose 1 3 2 and the return hose 1 3 3 can also prevent the temperature of the fuel from rising. The pump mounting portion 119 and the hose arrangement portion 120 are covered with the casing 138 covering the upper end of the fuel pump 1 1 8, the fuel hose 1 3 2, and the return hose 1 3 3 from above. The casing 138 is a pair of supporting members locked to the cover plate 1 2 6 of the fuel pump 1 1 8 described above. In other words, the case 1 3 8 is attached to the cover plate 126 via the supporting members 1 3 9 and 3 9. The supporting members 1 3 9 and 1 3 9 are arranged on opposite sides of each other through the insertion holes 1 4 9 of the fuel tank 3 4 A, and are locked by a cover plate 1 2 6 for fuel pumping. Each of the six sets of bolts 1 2 5 ... and nuts 1 2 7 ... on the mounting plate 1 2 4 ~ bolts 1 2 5 ... and nuts of two sets 1 2 7... And locked to the cover plate 1 2 6 is formed to bulge upward from the cover plate 1 2 6. Further, on the inner surface of the upper portion of each of the supporting members 1 39, 1 39, welding nuts 1 40, 1 4 0 are fixed, and the housing 1 38 is placed on the supporting members 1 39, 1 3 9 The bolt members 1 4 1, 1 4 1 inserted through the housing 丨 3 8 and the support members 丨 3 9 and 丨 3 9 are screwed to the welding nuts 1 4 0 and 1 40. At a position away from the fuel pump 1 1 8, that is, the right end portion of the casing 1 3 8 is a right front portion that supports the fuel tank 3 4 A, and is a bracket 1 1 3 fixed by being supported on the right rear frame 2 3, As shown in FIG. 18, bolts 115 and welding nuts 丨 6 and the crotch 1 1 2 on the right front part of the fuel tank 3 4 A are locked to the bracket 1 1 3. The lower part of the storage box 3 5 A, as shown in Fig. 12, is supported by a pair of mounting members 1 43 ... and supported between the front parts of the two rear frames 23 ... 22- (19) 1228093 The left and right upper ends of the rear part of the storage box 3 5 A on the supporting plate 1 4 2 are supported by the mounting member 4 4 ...... as shown in FIG. 18 through the mounting member. 4 ... The front. The support cymbals 3 5 a ... and the front part of the bracket 1 1 3 ... which are integrally provided at the left and right upper ends of the rear part of the storage box 3 5 A are respectively installed by an installer. The member 1 4 4... Is a synthetic resin gasket 1 4 9 that abuts on the upper surface of the supporting flange 3 5 a... ..... and the mounting member 144... Is inserted into a metal cylindrical collar 145... And the gasket 149. The gasket 148 ....... The bolt 147 having the locking head 邰 a 147a engaged with the washer 148 is inserted through the washer 148 ... and the collar 145 ... and the welding nut 146 ... is fixed to Under the front part of the bracket 113 ..., the above-mentioned bolts 1 4 7 ... which are screwed to the welding nut 146 ... are locked, so that the left and right upper ends of the rear part of the storage box 3 5 A are supported by the bracket. 1 1 3 The front end of the passenger seat cushion 3 6 is supported on the upper center of the front end of the storage box 3 5 A so as to be openable and closable via a hinge 1 50. It is used to support when the passenger seat cushion 3 6 is closed. The support plate 1 5 1 at the rear portion of the passenger seat cushion 36 is a pair of rear plate 23 ... provided between the rear portions of the two rear frames 23 ... and fixed to the lower portion of the bottom plate 36a of the passenger seat cushion 36. The elastic material 153... Is in contact with the support plate 1 5 1. On the support plate 1 5 1, both ends of the armrest rod 1 5 2 are attached.
當在關閉狀態施加於乘車用座墊3 6的荷重較小時， 乘車用座墊3 6的前後方向中間部並不會抵接於油箱3 4 A (20) 1228093 ，可是當荷重變大而乘車用座墊36朝下方撓曲時，用來 支承乘車用座墊36的荷重的座墊荷重支承位置是在上述 泵浦安裝部1 99的周圍的複數位置，在該實施例中是三個 位置，設定在油箱3 4 A的上壁部，固定在乘車用座墊3 6 的底板3 6 a的下面部的三個彈性材料1 5 4 A、1 5 4 B、1 5 4 C 是在上述各座墊荷重支承位置可抵接於油箱3 4 A的上壁 部。而也可以省略上述彈性材料 1 5 4 C，在一對座墊荷重 支承位置將彈性材料1 5 4 A、1 5 4 B抵接於油箱3 4 A的上壁 部。 用來將燃料供給到油箱3 4 A的燃料注入口（沒有圖 示）是設置在油箱3 4 A的上壁部的略中央部，用來關閉 該燃料注入口的燃料注入蓋1 5 5則是可裝卸地被安裝在油 箱34A的上壁部。 接下來針對該第一實施例的作用來加以說明，在空氣 濾淸器3 3的濾淸器盒體70，是一體地設置有從前方覆蓋 節流閥主體3 2中的至少節流閥鼓4 8的遮蔽板7 9，可避 免零件數量的增加，且可防止前輪所噴上來的污水或泥巴 噴到節流閥鼓4 8。 在節流閥主體3 2的主體部4 7，是安裝有用來控制將 燃料供給到引擎E的燃料噴射閥9 1的作動的控制單元5 3 ’ 5亥控制單兀5 3也是以遮蔽板7 9從前方覆蓋，所以也可 以提高控制單元5 3的防水及防泥性。 用末ίλί：側h:覆盖卽流閥主體3 2的節流閥鼓4 8的fp流 閥鼓護罩161是安裝在空氣濾淸器33的濾淸器盒體70， -24 - (21) 1228093 所以可以防止污水或泥巴從節流閥主體3 2的側邊噴到節 流閥鼓4 8。 在用來將導引來自於空氣灑淸器3 3的淨化空氣的連 接管7 6連接到節流閥主體3 2的固定用帶7 7所對應的位 置，是在遮蔽板7 9設置有操作用開口部8 〇，而可將操作 用開口部80進行開閉的蓋子8 1是安裝在遮蔽板79，所 以雖然有遮蔽板79，而只要通過操作用開口部8 〇從前方 將手指插入按壓固定用帶7 7，就可從遮蔽板7 9的側邊容 易地進行固定用帶7 7的鎖緊及放鬆作業，而可提升維修 或組裝時的作業性。 用來安裝收容於油箱3 4 A內的燃料泵浦1 1 8的泵浦 安裝部1 1 9，朝下方凹陷且設置在油箱3 4 a的上壁部，是 以外殻1 3 8從上方覆蓋該泵浦安裝部丨丨9，所以即使將對 於燃料泵浦1 1 8的燃料軟管1 3 2及回流軟管1 3 3等連接部 配置在泵浦安裝部119上，也可防止與乘車用座墊36的 干涉，可增加乘車用座墊36的高度設定的自由度。並且 藉由外殼3 6從上方覆蓋泵浦安裝部；[i 9，當要供油到油 箱3 4 A而將乘車用座墊3 6開啓時，可確實地防止接觸到 上述連接部而可以保護對於燃料泵浦Π 8的連接部，並且 不會讓上述連接部露出而可得到較佳的外觀。 作成將燃料泵浦1 1 8插入到油箱34A，且作成從上方 封閉設置在泵浦安裝部1 1 9的插入孔1 2 1，設置在燃料泵 浦1 1 8的上端的蓋板1 26是被安裝在泵浦安裝部1 1 9，由 於是經由支承構件1 3 9、1 3 9將外殻1 3 8安裝在蓋板1 2 6 -25- (22) 1228093 ，所以不需要將外殼1 3 8固定在油箱3 4 A側的特別的構 件，而可以減低零件數量。 遠離燃料泵浦1 1 8的外殼1 3 8的右側前部，是與油箱 34A —起鎖裝被安裝在，支承油箱34A而設置在車體框架 20的後框架23所設置的支架1 13，所以不需要用來安裝 外殼1 3 8的零件而可減少零件數量，可以堅固地支承外殼 138 ° 由於上述泵浦安裝部1 1 9及上述燃料泵浦1 1 8是被配 置在後輪WR的上方所配置的油箱3 4 A的左右其中一側（ 在該實施例中是左側部3 4L )，而可以將燃料泵浦1 1 8配 置在油箱3 4 A的較深位置。也就是說，雖然由於配置在 後輪WR上方導致油箱34A的左右方向中央部34C較淺 ，可是藉由將燃料泵浦1 1 8配置在油箱3 4 A的左右其中 一側，則可將燃料泵浦1 1 8配置在油箱3 4 A的較深位置 〇 在油箱3 4 A的左右另一側（在該實施例中是右側部 3 4 R )的前端部，是設置有將從燃料泵浦1 1 8側延伸出的 燃料軟管132及回流軟管133通過配置在油箱34A的前 方的置物箱3 5 A的後部之間的缺口 1 3 5，燃料軟管1 3 2及 回流軟管1 3 3，是在置物箱3 5 A的後方側彎曲配置成將上 述左右方向其中一側（在該實施例中是左側）開放成略U 字型。藉此，即使置物箱3 5 A在油箱3 4 A的前方也沒關 係，可以避免燃料軟管1 3 2及回流軟管1 3 3大幅度地彎曲 ’而讓其小幅度地彎曲，而可以順暢地配置燃料軟管132 - 26- (23) 1228093 及回流軟管1 3 3。 在泵浦安裝部1 1 9周圍的複數位置的油箱3 4 A的上 壁部，設定了可支承乘車用座墊3 6的座墊荷重支承位置 ，即使由於大荷重的作用而讓乘車用座墊3 6下沉，也能 以泵浦安裝部1 1 9周圍的複數位置，在油箱3 4 A的上壁 部支承乘車用座墊3 6的荷重，而可抑制乘車用座墊3 6的 變形’可避免來自於乘車用座墊3 6側的荷重作用到外殼 13 8c 第1 9圖是顯示本發明的第二實施例，將泵浦安裝部 1 1 9及燃料泵浦1 1 8配置在油箱3 4 B的左右其中一側（在 該實施例中是左側）的前部，在配置於油箱3 4 B的前方的 置物箱3 5 B的左右另一側（在該實施例中是右側）的後端 部’是設置有讓延伸來自於燃料泵浦丨丨8側的軟管1 3 2、 133通過油箱34B的前部與置物箱MB的後部之間的缺口 157° 該第二實施例，也可達到與上述第一實施例同樣的效 果° 第2 0圖是顯示本發明的第三實施例，在配置於置物 箱3SC的前方的油箱34C的左右方向中央部的後部上壁 J所5又置的泵浦安裝部丨丨9 / ,是安裝著收容於油箱3 4 c 內的燃料泵浦118的上端，是以外殻138〃從上方覆蓋泵 浦安裝部1 1 9 / 。 在置物箱35C的左右方向其中一側的前端部’設置有 π襄彳/t上述燃料泵浦1 1 8側延伸出的燃料軟管丨3 2及回流軟 -27- (24) 1228093 管133通過與油箱34C的後部之間的缺口 158，燃料軟管 1 2及回k車人管1 3 3是被_曲配置成開放左右方向另〜側 (在該實施例中是右側）的略U字型。 以上說明本發明的實施例，本發明並不限定於上述眚 施例，只要不脫離本發明的請求範圍，可以進行各種設計 變更。 〔發明效果〕 藉由以上的第1發明，即使對燃料泵浦的連接部被配 置在泵浦安裝部上，也可防止與乘車用座墊的干涉，可以 增加乘車用座墊的高度設定的自由度。並且當要對油箱進 行供油而將乘車用座墊開啓時，可保護對燃料泵浦的連接 部，而可得到優異的外觀。 藉由第2發明，則不需要用來將外殼固定在油箱側的 特別構件，而可減少零件的數量。 藉由第3發明，則不需要用來安裝外殼的專門的零件 ，可以減少零件數量，並且可以堅固地支承外殼。 藉由第4發明，則可將燃料泵浦配置在油箱的較深的 位置，並且可以順利地配置軟管。 藉由第5發明，能抑制乘車用座墊的變形，可以避免 來自於乘車用座墊側的荷重作用到外殼。 【圖式簡單說明】 第1圖是第一實施例的機車的全體側面圖。 -28- (25) 1228093 第2圖是在將車體外殼卸下的狀態的機車的前後方向 中央部的立體圖。 第3圖是引擎與進氣系統的側面圖。 第4圖是第3圖的4 一 4線放大剖面圖。 第5圖是第3圖的5端視放大圖。 第6圖是第5圖的6 — 6線剖面圖。 第7圖是從第3圖的7端視方向來看的空氣濾淸器的 背面圖。 第8圖是第7圖的8 - 8線剖面圖。 第9圖是第3圖的9端視圖。 第1 〇圖是進氣管及燃料噴射閥的平面圖。 第11圖是第10圖的11 一 11線别面圖。 第1 2圖是機車的後部縱剖面圖。 第13圖是第12圖的13— 13線剖面圖。 第14圖是第13圖的14— 14線剖面圖。 第1 5圖是油箱、燃料泵浦、以及外殼的分解立體圖 〇 第16圖是第13圖的16 — 16線放大剖面圖。 第17圖是第16圖的17 — 17線剖面圖。 第1 8圖是第1 3圖的1 8 - 1 8線放大剖面圖。 第1 9圖是對應於第二實施例的第1 3圖的剖面圖。 第20圖是第三實施例的油箱及置物箱的平面圖。 〔圖號說明〕 -29- (26) (26)1228093 2 0 :車體框架 3 4 A、3 4 B、3 4 C :油箱 3 5 A、3 5 B :置物箱 3 6 :乘車用座墊 1 1 3 :支架 1 1 8 :燃料泵浦 1 1 9、1 1 9 / :泵浦安裝部 1 3 2 :燃料軟管 1 3 3 :回流軟管 1 3 5、1 5 7 :缺口 138、 138^ ：外殼 WR :後輪When the load applied to the passenger seat cushion 36 in the closed state is small, the middle portion of the passenger seat cushion 36 in the front-rear direction does not contact the fuel tank 3 4 A (20) 1228093, but when the load changes When the passenger seat cushion 36 is bent downward, the seat cushion load supporting position for supporting the load of the passenger seat cushion 36 is a plurality of positions around the pump mounting portion 199. In this embodiment, The middle is three positions, three elastic materials set on the upper wall portion of the fuel tank 3 4 A and fixed to the lower portion of the floor 3 6 a of the passenger seat cushion 3 6 1 5 4 A, 1 5 4 B, 1 5 4 C is an upper wall portion of the fuel tank 3 4 A that can be abutted at each of the seat cushion load supporting positions. Alternatively, the above-mentioned elastic material 1 5 4 C may be omitted, and the elastic materials 1 5 4 A and 1 5 4 B may be abutted against the upper wall portion of the fuel tank 3 4 A at a pair of seat cushion load supporting positions. A fuel injection port (not shown) for supplying fuel to the fuel tank 3 4 A is provided at a slightly central portion of an upper wall portion of the fuel tank 3 4 A. A fuel injection cap 1 5 5 is used to close the fuel injection port. It is detachably attached to the upper wall portion of the fuel tank 34A. Next, the function of the first embodiment will be described. The filter case 70 of the air filter 33 is integrally provided with at least a throttle drum covering the throttle body 32 from the front. The shielding plate 7 9 of 4 8 can avoid the increase of the number of parts, and can prevent the sewage or mud sprayed from the front wheels from being sprayed to the throttle drum 4 8. A control unit 5 3 ′ is installed in the main body portion 4 7 of the throttle body 3 2 to control the operation of the fuel injection valve 9 1 that supplies fuel to the engine E. The control unit 5 3 is also a shielding plate 7. 9 is covered from the front, so the waterproof and mudproof properties of the control unit 5 3 can also be improved. Ends: side h: fp flow valve drum cover 161 covering the throttle drum 4 8 of the flow valve main body 3 2 is a filter case 70, -24-(21 ) 1228093 Therefore, it is possible to prevent sewage or mud from spraying from the side of the throttle body 32 to the throttle drum 48. The shielding plate 7 9 is provided with an operation at a position corresponding to the fixing band 7 7 for connecting the connecting pipe 7 6 for purifying air from the air sprinkler 3 3 to the throttle body 3 2. The cover 81, which can be opened and closed by using the opening portion 80, is attached to the shielding plate 79. Although there is a shielding plate 79, as long as the finger is inserted and pressed from the front through the operation opening portion 80, With the belt 7 7, the locking and loosening operation of the fixing belt 7 7 can be easily performed from the side of the shielding plate 7 9, and the workability during maintenance or assembly can be improved. The pump mounting portion 1 1 9 for mounting the fuel pump 1 1 8 contained in the fuel tank 3 4 A is recessed downward and is provided on the upper wall portion of the fuel tank 3 4 a, and is covered by the casing 1 3 8 from above Since the pump mounting portion 9 is provided, even if connection portions such as the fuel hose 1 3 2 and the return hose 1 3 3 for the fuel pump 1 1 8 are arranged on the pump mounting portion 119, it is possible to prevent the The interference of the vehicle seat cushion 36 can increase the degree of freedom in setting the height of the vehicle seat cushion 36. The pump mounting portion is covered by the housing 36 from above; [i 9, when the passenger car seat cushion 3 6 is opened to supply fuel to the fuel tank 3 4 A, it can be surely prevented from contacting the connection portion and can be The connection portion for the fuel pump UI 8 is protected, and the connection portion is not exposed, so that a better appearance can be obtained. The fuel pump 1 1 8 is inserted into the fuel tank 34A, and the insertion hole 1 2 1 provided in the pump mounting portion 1 1 9 is closed from above, and the cover plate 1 26 provided on the upper end of the fuel pump 1 1 8 is It is mounted on the pump mounting section 1 1 9. Since the housing 1 3 8 is mounted on the cover plate 1 2 9 through support members 1 3 9 and 1 3 9, the housing 1 is not required. 3 8 Special components fixed to the fuel tank 3 4 A side, which can reduce the number of parts. The front part of the right side of the casing 1 3 8 away from the fuel pump 1 1 8 is installed with the fuel tank 34A in a lock-up manner, and supports the fuel tank 34A and is provided on the rear frame 23 of the vehicle body frame 20. Therefore, it is not necessary to install the parts of the housing 1 3 8 and the number of parts can be reduced. The housing can be firmly supported 138 °. Because the pump mounting portion 1 1 9 and the fuel pump 1 1 8 are arranged on the rear wheel WR The left and right sides of the fuel tank 3 4 A (the left part 34 L in this embodiment) arranged above can be arranged at a deeper position of the fuel tank 34 A. That is, although the central portion 34C of the fuel tank 34A is shallow due to being disposed above the rear wheel WR, by arranging the fuel pump 1 1 8 on one of the left and right sides of the fuel tank 3 4 A, the fuel can be placed. The pump 1 1 8 is arranged at a deeper position of the fuel tank 3 4 A. On the left and right sides of the fuel tank 3 4 A (the right side part 3 4 R in this embodiment), a secondary fuel pump is provided. The fuel hose 132 and the return hose 133 extending from the Pu 1 1 8 side pass through the gap 1 3 5 between the rear part of the storage box 3 5 A in front of the fuel tank 34A, the fuel hose 1 3 2 and the return hose. 1 3 3 is curvedly arranged on the rear side of the storage box 3 5 A so as to open one side (left side in this embodiment) of the above left-right direction into a slightly U-shape. Thereby, even if the storage box 3 5 A is in front of the fuel tank 3 4 A, it is possible to prevent the fuel hoses 1 2 2 and the return hoses 1 3 3 from being greatly bent, and let them be bent slightly, so that they can be smoothed. Ground the fuel hose 132-26- (23) 1228093 and the return hose 1 3 3 on the ground. On the upper wall portion of the fuel tank 3 4 A in a plurality of positions around the pump mounting portion 1 1 9, a seat cushion load supporting position capable of supporting the vehicle seat cushion 36 is set, even if the vehicle is driven by a large load. When the seat cushion 36 is sunk, the load of the passenger seat cushion 36 can be supported on the upper wall of the fuel tank 3 4 A at a plurality of positions around the pump mounting portion 1 1 9, and the passenger seat can be suppressed. Deformation of the pad 36 can prevent a load from the side of the passenger seat pad 3 6 from acting on the housing 13 8c. FIG. 19 is a diagram showing a second embodiment of the present invention. The pump mounting portion 1 19 and the fuel pump are shown in FIG. PU 1 1 8 is disposed on the front of one of the left and right sides of the fuel tank 3 4 B (left side in this embodiment), and on the other side of the left and right of the storage tank 3 5 B (in the embodiment) disposed in front of the fuel tank 3 4 B The right side in this embodiment) is provided with a rear end portion 'to allow the hoses 1 3 2, 133 extending from the fuel pump 8 side to pass through the gap between the front portion of the fuel tank 34B and the rear portion of the storage box MB. 157 ° This second embodiment can also achieve the same effect as the first embodiment described above. FIG. 20 shows a third embodiment of the present invention. The pump mounting portion of the rear upper wall J of the fuel tank 34C in the left-right central portion of the fuel tank 34C placed in front of the storage tank 3SC is installed with the fuel pump 118 accommodated in the fuel tank 3 4 c. At the upper end, the pump mounting portion 1 1 9 / is covered with a casing 138〃 from above. A fuel hose extending from the fuel pump 1 1 8 above the fuel pump 丨 3 2 and the return soft -27- (24) 1228093 pipe 133 is provided at the front end portion of one side of the storage box 35C in the left-right direction. Through the gap 158 from the rear portion of the fuel tank 34C, the fuel hose 12 and the return carriage pipe 1 3 3 are arranged slightly to the left and right directions and on the other side (the right side in this embodiment). Font. The embodiments of the present invention have been described above. The present invention is not limited to the above-mentioned embodiments. Various design changes can be made without departing from the scope of the present invention. [Effects of the Invention] According to the first invention described above, even if the connection portion to the fuel pump is arranged on the pump mounting portion, interference with the passenger seat cushion can be prevented, and the height of the passenger seat cushion can be increased. Set the degrees of freedom. Furthermore, when the fuel tank is to be fueled and the passenger seat cushion is opened, the connection portion to the fuel pump can be protected, and an excellent appearance can be obtained. According to the second invention, a special member for fixing the case to the tank side is not required, and the number of parts can be reduced. According to the third invention, special parts for mounting the housing are not required, the number of parts can be reduced, and the housing can be supported sturdy. According to the fourth invention, the fuel pump can be arranged at a deeper position in the fuel tank, and the hose can be smoothly arranged. According to the fifth invention, it is possible to suppress the deformation of the passenger seat cushion, and it is possible to prevent the load from the passenger seat cushion side from acting on the case. [Brief Description of the Drawings] Fig. 1 is an overall side view of a locomotive according to the first embodiment. -28- (25) 1228093 Fig. 2 is a perspective view of the center portion of the locomotive in the front-rear direction with the vehicle body case removed. Figure 3 is a side view of the engine and the intake system. Fig. 4 is an enlarged cross-sectional view taken along the line 4-4 in Fig. 3. Fig. 5 is an enlarged view of a 5-terminal view of Fig. 3; Fig. 6 is a sectional view taken along line 6-6 in Fig. 5. Fig. 7 is a rear view of the air filter viewed from the direction of the 7th end of Fig. 3; Fig. 8 is a sectional view taken along line 8-8 in Fig. 7. FIG. 9 is a 9-end view of FIG. 3. FIG. 10 is a plan view of the intake pipe and the fuel injection valve. Fig. 11 is a sectional view of the 11-11 line in Fig. 10; Fig. 12 is a longitudinal sectional view of the rear portion of the locomotive. Fig. 13 is a sectional view taken along the line 13-13 in Fig. 12; Fig. 14 is a sectional view taken along the line 14-14 in Fig. 13; Figure 15 is an exploded perspective view of the fuel tank, fuel pump, and casing. Figure 16 is an enlarged sectional view taken along line 16-16 of Figure 13. Fig. 17 is a sectional view taken along the line 17-17 in Fig. 16; Fig. 18 is an enlarged sectional view taken along lines 18-18 in Fig. 13. Fig. 19 is a sectional view corresponding to Fig. 13 of the second embodiment. Fig. 20 is a plan view of a fuel tank and a storage box according to a third embodiment. [Illustration of drawing number] -29- (26) (26) 1228093 2 0: Body frame 3 4 A, 3 4 B, 3 4 C: Fuel tank 3 5 A, 3 5 B: Storage box 3 6: For vehicle use Seat cushion 1 1 3: Bracket 1 1 8: Fuel pump 1 1 9, 1 1 9 /: Pump mounting portion 1 3 2: Fuel hose 1 3 3: Return hose 1 3 5, 1 5 7: Notch 138, 138 ^: shell WR: rear wheel
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