1238220 (1) 玖、發明說明 【發明所屬之技術領域】 本發明，其車體框架的其中一部分，是以：可轉向地 支承前輪及轉向車把的頭管、以及從該頭管朝後下方延伸 的主框架所構成，在上述車體框架，是懸架著配置在上述 主框架的下方的引擎，是在引擎上方配置有：進氣量調節 手段、以及空氣濾淸器，進氣量調節手段，是作成：用來 調節供給到該引擎的空氣量的節流閥是可轉動地被支承在 主體部，並且在與上述節流閥相連且配置在上述主體部的 側邊的節流閥筒體是捲繞連結著節流閥鋼索，空氣濾淸器 則是用來將淨化空氣供給到該進氣量調節手段而被配置在 進氣量調節手段的更前方，本發明是關於這種機車。 【先前技術】 在從頭管朝後下方延伸的主框架的下方所配置的引擎 的上方配置節流閥主體，在該節流閥主體的斜前上方配置 空氣濾淸器的機車，例如是在日本專利文獻！中習知的構 造。 【專利文獻1】 日本特開2002— 37165號公報 【發明內容】 (發明欲解決的課題） 在xa種機車中’在行駛時，前輪可能會將污水或泥巴 -5- (2) 1238220 噴到後方，而需要避免噴上來的污水或泥巴噴到節流閥主 體的節流閥筒體等。因此雖然也能夠以防水外殼等從前方 覆蓋節流閥主體，可是會使零件數量增加。 本發明鑑於這種情形，其目的要提供一種機車，既可 避免零件數量的增加，且可防止前輪所噴起的污水或泥巴 噴到節流閥筒體。 (用以解決課題的手段） 爲了達成上述目的，第1發明，車體框架的其中一部 分，是以：可轉向地支承前輪及轉向車把的頭管、以及從 該頭管朝後下方延伸的主框架所構成，在上述車體框架， 是懸架著配置在上述主框架的下方的引擎，是在上述引擎 上方配置有··進氣量調節手段、以及空氣濾淸器，進氣量 調節手段，是作成：用來調節供給到該引擎的空氣量的節 流閥是可轉動地被支承在主體部，並且在與上述節流閥相 連且配置在上述主體部的側邊的節流閥筒體是捲繞連結著 節流閥鋼索，空氣濾淸器則是用來將淨化空氣供給到該進 氣量調節手段而被配置在進氣量調節手段的更前方之機車 ，其特徵爲：在上述空氣濾淸器的濾淸器盒體，是一體地 設置有遮蔽板，該遮蔽板是用來從前方覆蓋上述進氣量調 盲P手段中的至少上述節流閥筒體。 藉由第1發明，藉由一體地設置在空氣濾淸器的濾淸 器盒體的遮蔽板，從前方覆蓋上述進氣量調節手段中的至 少上述節流閥筒體，可避免零件數量的增加，且可防止前 (3) 1238220 輪噴起的污水或泥巴噴到節流閥筒體。 第2發明，是針對上述第丨發明，在將用來導引來自 於上述空氣濾淸器的淨化空氣的連接管連接到上述進氣量 調節手段的固定用帶所對應的位置，在上述遮蔽板設置有 操作用開口部，將可開閉該操作用開口部的蓋子安裝在上 述遮蔽板，藉由這種構造，即使有遮蔽板也沒關係，可容 易進行固定用帶的鎖緊與放鬆作業，可以提昇維修時或組 裝時的作業性。 弟3發明，是針對上述第1或2發明，在上述空氣濾、 淸器’是安裝有從側邊來覆蓋上述節流閥筒體的節流閥筒 體5蒦罩’藉由這種構造，則可防止污水或泥巴從側邊噴到 節流閥筒體。 第4發明，是針對上述第丨〜3發明，在節流閥主體 部也就是在上述進氣量調節手段的主體部，安裝有用來控 制將燃料供給到上述引擎的燃料噴射閥的作動的控制單元 ’藉由這種構造，則可提高用來控制燃料噴射閥的作動的 控制單元的防水性及防泥巴性。 【實施方式】 以下是根據附圖所不的本發明的實施例來說明本發明 的實施方式。 第1圖〜第18圖是顯示本發明的第一實施方式，第 1圖是機車的全體側面圖，第2圖是在將車體外殼卸下的 狀悲的機車的前後方向中央部的立體圖，第3圖是引擎與 (4) 1238220 镇4圖是第3圖的4 一 4線放大剖面 進氣系統的側面圖’ # 圖，第5圖是第3 _的 圖 6 — 6線剖面圖，第’ 空氣濾淸器的背面_ ，第9圖是第3圖的 噴射閥的平面圖，第 5端視放大圖，第6圖是第5圖的 是從第3圖的7端視方向來看的 ，第8圖是第7圖的8 — 8線剖面圖 7端視圖，第1 〇圖是進氣管及燃料 1圖是第10圖的11 一 11線剖面圖1238220 (1) 发明 Description of the invention [Technical field to which the invention belongs] In the present invention, a part of the body frame of the present invention is: a head pipe that steerably supports the front wheels and the steering handlebar, and the head pipe is directed downward from the head pipe. The extended main frame is composed of an engine arranged below the main frame in a suspension manner on the body frame, and an air volume adjustment means, an air filter, and an air volume adjustment means are disposed above the engine. Is made: a throttle valve for adjusting the amount of air supplied to the engine is rotatably supported on the main body portion, and a throttle cylinder connected to the throttle valve and arranged on the side of the main body portion The body is wound and connected with a throttle cable, and the air filter is used to supply purified air to the intake air volume adjustment means and is arranged in front of the intake air volume adjustment means. . [Prior Art] A locomotive in which a throttle body is disposed above an engine disposed below a main frame extending from a head pipe to a lower rear side, and an air filter is disposed obliquely above the throttle body, for example, in Japan Patent Literature! The structures that are known in Chinese. [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-37165 [Summary of the Invention] (Problems to be Solved by the Invention) In the xa type of locomotive, when traveling, the front wheels may spray sewage or mud -5- (2) 1238220 to To the rear, and it is necessary to avoid spraying the sewage or mud sprayed on the throttle body of the throttle body. Therefore, although the throttle body can be covered from the front with a waterproof case or the like, the number of parts is increased. In view of this situation, the present invention aims to provide a locomotive, which can prevent an increase in the number of parts and can prevent the sewage or mud sprayed from the front wheels from being sprayed into the throttle body. (Means for Solving the Problems) In order to achieve the above object, a first invention is that a part of a vehicle body frame includes a head pipe that steerably supports a front wheel and a steering handlebar, and a head pipe extending rearward and downward from the head pipe. The main frame is composed of an engine that is suspended below the main frame in the vehicle body frame, and is provided with an intake air volume adjustment means, an air filter, and an air volume adjustment means above the engine. Is made: a throttle valve for adjusting the amount of air supplied to the engine is rotatably supported on the main body portion, and a throttle cylinder connected to the throttle valve and arranged on the side of the main body portion The body is a coiled wire that is connected with a throttle valve, and the air filter is a locomotive that is configured to supply purified air to the intake air volume adjustment means and is arranged further in front of the intake air volume adjustment means. The filter case of the air filter is integrally provided with a shielding plate, which is used to cover at least the throttle cylinder of the intake air volume blind adjustment P means from the front. According to the first invention, at least the throttle body of the intake air volume adjusting means is covered from the front by a shielding plate integrally provided in the filter case of the air filter, so that the number of parts can be avoided. Increased, and can prevent the sewage or mud sprayed from the front (3) 1238220 wheel from spraying into the throttle body. The second invention is directed to the above-mentioned invention, in a position corresponding to a fixing belt connecting a connection pipe for guiding purified air from the air filter to the intake air volume adjusting means, and shielding the The plate is provided with an opening for operation, and a cover that can open and close the opening for operation is attached to the above-mentioned shielding plate. With this structure, even if there is a shielding plate, it is easy to lock and relax the fixing belt. This improves workability during maintenance or assembly. The third invention is directed to the first or second invention described above. The air filter and the air cleaner 'are equipped with a throttle body 5' which covers the throttle body from the side. , It can prevent sewage or mud from spraying into the throttle body from the side. The fourth invention is directed to the above-mentioned third to third inventions, and a control body for controlling the operation of a fuel injection valve for supplying fuel to the engine is installed in a main body of a throttle valve, that is, a main body of the intake air amount adjusting means. With this structure, the unit can improve the waterproofness and mud-proof property of the control unit for controlling the operation of the fuel injection valve. [Embodiment] The following is a description of embodiments of the present invention based on examples of the present invention which are not shown in the drawings. FIGS. 1 to 18 are diagrams showing a first embodiment of the present invention. FIG. 1 is an overall side view of the locomotive, and FIG. 2 is a perspective view of a central portion of the locomotive with the saddle body removed from the body. Figure 3 is the engine and the (4) 1238220 town. Figure 4 is the side view of the 4-4 enlarged view of the air intake system in Figure 3. Figure 5 is the sectional view of Figure 6-6 in Figure 3-6. , The back of the air filter _, FIG. 9 is a plan view of the injection valve of FIG. 3, an enlarged view of the fifth end, and FIG. 6 is a view of FIG. 5 from the direction of the 7 end of FIG. Seeing, Fig. 8 is an end view of Fig. 7 taken along line 8-8 in Fig. 7; Fig. 10 is an intake pipe and fuel; Fig. 10 is a sectional view taken along line 11-11 in Fig. 10;
，第12圖是機車的後部縱剖面圖，第13圖是第12圖的 I3 — I3線剖面圖，第14圖是第13圖的14 一 14線剖面圖 ，第1 5圖是油箱、燃料泵浦、以及外殻的分解立體圖， 第1 6圖是第1 3圖的1 6 — 1 6線放大剖面圖’第1 7圖是第 16圖的17— 17線剖面圖’第18圖是第13圖的18— 18 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 方延伸的主框架2 2、以及連接設置於主框架2 2的後部且 朝後上方延伸的左右的一對後框架2 3 · ·，在上述前叉Fig. 12 is a longitudinal sectional view of the rear portion of the locomotive, Fig. 13 is a sectional view taken along line I3-I3 of Fig. 12, Fig. 14 is a sectional view taken along line 14-14 of Fig. 13, and Fig. 15 is a fuel tank and fuel An exploded perspective view of the pump and the casing, FIG. 16 is an enlarged sectional view taken along line 16-16 of FIG. 13 'FIG. 17 is a sectional view taken along line 17-17 of FIG. 16' FIG. 18 is An enlarged sectional view taken on line 18-18 in FIG. 13. First, in the first figure, the body frame 20 of the locomotive is provided with a head pipe 2 1 that supports the front fork 24 steerably, a main frame 2 2 extending from the head pipe 21 1 to the lower back, and a connection. A pair of left and right rear frames 2 3 installed at the rear of the main frame 2 2 and extending upward and rearward, are at the front forks.
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 四角形的方管所構成+ t ^ 灰在於主框架2 2的中間部兩側面 分別固定安裝著懸掛板 六*十加 「奴2 7 · ·，在主框架2 2的後部兩 面是固定安裝著樞軸板28。 在主框架 22的γ + 0下方’是配置著例如將氣缸軸線稍 -8- (5) 1238220 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28，是可上下擺動地支承著後叉29的 前端部，在後叉29的後端軸支承著後輪WR。而在車體 框架20的後框架23 · •及後叉29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WR。 在引擎Ε的上方，是配置有：作爲進氣量調節手段的 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，配置在該 油箱3 4的前方的置物箱3 5以及上述油箱3 4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 〇 在車體框架20，是安裝用來覆蓋：該車體框架20、 上述引擎Ε的局部、節流閥主體3 2、空氣濾淸器3 3、油 箱3 4、以及置物箱3 5之合成樹脂製的車體外殼3 8，該車 體外殻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 殻3 9 · ·的前部的腿部護罩40 · ·、從前方覆蓋頭管2 j 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的主框架頂外殻4 2、連接於上述兩前側外殼3 9 的 下部的上外殼43 · ·、以及從兩側覆蓋油箱34及置物箱 -9- 1238220 (6) 3 5的後側外殼4 4所構成。 上述乘車用座墊3 6，爲了要可進行對置物箱3 5的物 品的收容及取出，以及對油箱3 4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32，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46 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的側邊的節流閥筒體4 8則捲繞連結著 節流閥鋼索49。 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。節流閥筒體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，該節流閥筒體4 8是被固定 在上述閥軸5 1的其中一端。並且在節流閥筒體4 8及主體 部4 7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5 2，機車的駕駛者藉由抵抗上述回復彈簧5 2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，在與上述節流閥筒體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 55。該殻體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， 394 -10- 1238220 (7) 上述控制單元5 3，在挾持於殼體主體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5 4，是連接了用來檢測節流閥4 6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 5 9朝向電路基板5 4側突出的導電刷6 0、6 0、以及作成與 導電刷6 0、6 0滑動接合而被印製在電路基板5 4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6 2。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46的更上流側的主體部47，是設置有開 口於進氣通道50的穿孔63，貫穿該穿孔63而使前端封 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敏 電阻6 5、以及在檢測筒6 4內從上述熱敏電阻6 5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6 7，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6 7之後，會充 桃入由合成樹脂所構成的封裝劑6 8。 -11 - 1238220 (8) 由於在安裝於節流閥主體4 7的控制單元5 3的電路基 板5 4連接著節流閥感應器5 8及進氣溫度感應器6 7 ’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。 上述殼體5 5的上部，是跨越主體部4 7的上部而延伸 設置到節流閥筒體4 8側，與節流閥筒體4 8開口在同一側 的耦合器69是一體形成在上述殼體55的殼體主體56。 在第3圖，空氣濾淸器3 3所具備的合成樹脂製的濾 淸益盒體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開口的碗狀的外殼72來將過濾單 元7 3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70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7 5。 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 的連接管7 6，該連接管7 6的上流端是伸入到淨化室7 5 內’在該連接管7 6的下流端部，是嵌合著一體設置於節 流閥主體3 2的主體部4 7的上流側連接筒4 7 a (參照第4 圖）。並且用來固定維持連接管7 6對節流閥主體3 2的連 接狀態的固定用帶7 7是被捲繞在連接管7 6的下流端部， 是藉由螺栓構件7 8來鎖裝住固定用帶7 7，而可固定維持 連接管7 6對節流閥主體3 2的連接狀態。 合倂參照第5圖〜第8圖，在空氣濾淸器3 3的濾淸 器盒體70的盒體主體71的下部，是藉由一體成型的方式 -12- 1238220 (9) 設置有遮敝板79，該遮蔽板79是從前方覆蓋著配置在空 氣濾淸器3 3的斜後下方的節流閥主體3 2中的至少節流閥 筒體4 8，在上述節流閥主體3 2，由於殼體5 5所具備的耦 合器6 9也被配置在節流閥筒體4 8側，以上述遮蔽板7 9 也從前方覆蓋了耦合器69。 在對應於上述固定用帶7 7的位置的上述遮蔽板7 9， 例如設置有圓形的操作用開口部8 0，在遮蔽板7 9，是安 裝有可用來開閉操作用開口部8 0且配置於遮蔽板7 9的前 面側的蓋子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 置有支承孔82，在由橡膠所構成的蓋子81，插通於上述 支承孔8 2的支軸8 3，是一體地突出設置爲在對支承孔8 2 進行插通時，其前端側直徑可縮小，在支軸8 3的前端是 一體地設置有在支承孔82的周圍彈性地卡合於遮蔽板79 的背面的複數的卡合爪部8 3 a ··。也就是說蓋子8 1，是 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。 上述支承孔8 2，藉由將蓋子8 1卸下，也可使用作爲 遮蔽板7 9的內側的零件調整用途，例如使用化油器來取 代節流閥主體47時，可利用作爲化油器的怠速調整用工 具的插入孔。 在蓋子81’是一體地突出設置有在圓周方向分割爲 -13- 397 1238220 (10) 複數的嵌合筒8 4，該嵌合筒8 4是作成在操作用開口部8 0 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的部分的上述遮敝 板7 9的下端，是設置有：當將汽缸頭外殼8 7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 筒體4 8的合成樹脂製的節流閥筒體護罩1 6 1，是被安裝 在上述空氣濾淸器3 3。也就是說，在空氣瀘淸器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 62來鎖裝上述節流閥筒體護罩1 6丨的上部的安 裝轂部7 1 a，在上述遮蔽板7 9的左側下部，是設置有用 來與上述節流閥筒體護罩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。 而錯由將上述卡合爪部161a卡合在卡合孔163，且 將其下邰抵接在上述遮蔽板7 9的背面的節流閥筒體護罩 1 6 1的上部，以螺栓構件丨62鎖裝在上述安裝轂部7丨a， 將節流閥筒體護罩1 6 1安裝在空氣濾淸器3 3。 在引擎E的汽缸頭8 8的下部，是連接著接續於汽缸 頭8 8的排氣口（沒有圖示）的排氣管丨6 4，用來將新鮮 的一次空氣供給到從上述排氣口流到排氣管丨6 4的排出氣 -14- 1238220 (11) 體中的管路1 6 5的下流端是被連接到汽缸頭外殼8 7，該 管路1 65的上流端是被連接到引擎E所支承的二次空氣控 制閥1 66。二次空氣控制閥1 66是被連接到主框架22所 支承的過濾器167。 上述過濾器1 6 7，是連接著從該過濾器1 6 7沿著主框 架22朝前方延伸的空氣供給管1 68的下流端，該空氣供 給管1 6 8的上流端是延伸到空氣濾淸器3 3的上方，在車 體外殼3 8內開放到空氣中。 並且在空氣濾淸器3 3的濾淸器盒體70的盒體主體 7 1的背面上部，是設置有用來使上述空氣供給管1 6 8的 靠近上流端的部分嵌合的嵌合溝槽1 69，並且一體地突出 設置有從上方抵接、卡合於該嵌合溝槽1 69所嵌合的部分 的空氣供給管1 68的卡合銷栓1 70。也就是說空氣供給管 1 68的靠近上流端的部分，是藉由嵌合於嵌合溝槽1 69並 且藉由卡合銷栓1 70從上方的抵接、卡合，而被保持在盒 體主體7 1的背面上部。因此不需要將用來保持空氣供給 管168的專用的箍位器安裝在主框架22。 節流閥主體3 2的主體部47 —體地具備的下流側連接 筒4 7b (參照第4圖），是被連接在進氣管89的上流端 ，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 -15- 1238220 (12) 燒接在茸表面由橡膠所構成的被覆材料90所覆蓋，藉由 將上述節流閥主體32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9 0的連接筒部9 0 a，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側開口的安裝孔 9 2，是作成將前端面對於進氣管8 9內且將燃料噴射閥9 1 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9 3，該蓋子9 3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9 3，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9 4，連通到該燃 料供給通路94的上流端的入口側連接管9 5是被凸緣連結 到蓋子9 3。 在上述蓋子93，是設置有從上述燃料供給通路94的 途中分歧的回流通路96，在該回流通路96連接著壓力調 整閥9 7。 該壓力調整閥9 7的閥殻體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 98的上端部，是被安裝在蓋子93，且是使液密性地連通 -16- 1238220 (13) 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9 3朝側邊突出，且是配置成從蓋子9 3朝下方延伸 〇 在該閥殻體9 8的下部，是結合有用來將膜片1 0 0的 周緣部挾持在閥殼體9 8之間的外殼1 〇 1，在閥殼體9 8及 膜片1 〇 〇之間，形成有連通到上述回流通路9 6的閥室 1 0 2，在膜片1 0 0及外殼1 0 1間形成了彈簧室1 〇 3。 在閥殼體9 8，是一體地設置有在凸緣結合於蓋子9 3 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 1 0 4的圓筒狀的閥座構件1 〇 5，是面對於閥室1 0 2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 02側的端部且可稍微搖動的閥體1 〇6，在彈簧室1 03， 是收容有在外殼1 0 1及膜片1 〇 〇之間壓縮設置的彈簧1 〇 7 ，用來發出使膜片1 00朝向上述閥室i 〇2側撓曲的彈力。 在這種壓力調整閥9 7，如果用來將膜片1 〇 〇朝向彈 簧室1 03側彈壓的閥室1 〇2側的液壓力，超過將膜片1 00 朝向閥室1 〇 2側彈壓的彈簧室i 〇 3側的彈力的話，膜片 1〇〇會朝向彈簧室103側撓曲而閥體1〇6會從閥座構件 1 05分離’經由回流通路〗〇6而連通到閥室丨〇2的燃料供 給通路94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。 -17- 1238220 (14) 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97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，是將下部油箱半體 1 1 〇及上部油箱半體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的結合邰整個外周，是一體地形成了朝 外側伸出的鍔部1 1 2。該油箱3 4，是被支承在車體框架 2 〇的兩後框架2 3 · ·，在後框架2 3 ·.，是設置有：用 來支承上述油箱3 4的前部的支架1 1 3 ·.、以及用來支 承上述油箱3 4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 ··上的上述鍔部1 1 2，是藉由螺栓1 1 7 ••被鎖裝在支承轂部1 1 4 ··。 油箱3 4是配置在後輪WR的上方，爲了避免後輪WR 的干涉，油箱3 4的底部也就是下部油箱半體1丨〇的底部 ’其左右方向中央部是朝上方膨脹形成。也就是說，油箱 3 4，其左右方向兩側部3 4 L、3 4 R是形成爲較中央部3 4 C 更深。 合併爹照弟1 5圖’在油箱3 4內’收容著燃料泵浦 1 1 8，該燃料栗浦1 1 8是被安裝在油箱3 4的上壁部也就是 上部油箱半體Π 1。 在油箱3 4的左右其中一側（在該實施例中是左側部 1238220 (15) 3 4L )的上壁前部，是設置有朝下方凹陷且平坦的栗浦安 裝部1 1 9，在油箱3 4的左右另一側（在該實施例中是右 側部3 4 R )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11 9，是設置有用來將燃料泵浦 1 1 8插入到油箱3 4內的例如橢圓狀的插入孔i 2 1。也就是 說燃料泵浦1 1 8，是配置在油箱3 4的左右其中一側（在 該實施例中是左側部34L )。 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 22，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1 1 8的下 部，用來檢測油箱34內的燃料液面的浮標1 23，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1 1 9的 複數個例如6個低位部1 24a ··、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。 合倂參照第16圖及第17圖，在上述各高位部124b • •的下面部，是焊接著從高位部1 24b ··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 -19- 1238220 (16) 1 2 5 ·.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11 9。 並且在泵浦安裝部119與上述蓋板126之間，是中介 安裝有橡膠製的墊圏128，該墊圈128，是具有用來分別 配置上述安裝板124的高位部124b .·的開口部129 · · 而形成爲橢圓狀，藉由將螺合於上述各螺栓1 2 5 ··的螺 母1 2 7 ··鎖緊，則墊圈1 2 8會被夾壓在安裝板1 24的低 位部124a..及蓋板126之間，並且以安裝板124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。 鲁 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會從吐出管丨3 〇將燃料排出 。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1 2 6並且在燃料泵浦丨丨8的側邊延伸到油箱3 4的下部 的回流管1 3 1，在蓋板丨2 6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13〇及回流管131， 是朝向右斜前方平行配置，在吐出管；[3 〇，是連接著燃料 ® 軟管1 3 2的上流端，在回流管丨3 1，是連接著回流軟管 1 3 3的下流端’該回流軟管τ 3 3的上流端是連接在上述壓 力調整閥9 7的回流側連接管部1 〇 4。 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3 4的前端’也就是在左側前部配置著燃料泵浦1 1 8的 油箱3 4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〗3 2及回流軟管丨3 3通過鍔部；! i 2 -20- 1238220 (17) 與配置在油箱3 4前方的置物箱3 5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的後方彎曲成朝向該置物箱3 5的左側延伸。也 就是說連接於吐出管1 3 〇及回流管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後方彎曲配置成朝左側打 開的略U字型。 在置物箱3 5的左側，雖然燃料軟管丨3 2及回流軟管The lower end of 24 supports the front wheel WF. A rod-shaped steering rod 25 is connected to the upper part of the front fork 24. The front fork 24 supports a front fender 26 for covering the front wheel WF. Combined with reference to Figures 2 and 3, the main frame 22 is composed of a square tube with a cross section + t ^ The gray is fixed on the two sides of the middle portion of the main frame 22 2 with suspension plates six * ten plus " Slave 2 7 · · Pivot plates 28 are fixedly mounted on both sides of the rear part of the main frame 22. Below γ + 0 of the main frame 22 is a position where, for example, the cylinder axis is slightly -8- (5) 1238220. The upper front engine E, which is supported by the suspension plate 27 .. and the pivot plate 28, is suspended from the body frame 20. The pivot plate 28 is swingably supported vertically. The front end of the rear fork 29 supports the rear wheel WR at the rear axle of the rear fork 29. A rear suspension unit 30 is provided between the rear frame 23 of the body frame 20 and the rear fork 29. The above engine E constitutes a power unit P together with the transmission M, and the output of the transmission M is transmitted to the rear wheel WR via the chain 31. Above the engine E, a throttle valve is provided as a means for adjusting the intake air amount. The main body 3 2 and the air filter 3 3 located in front of the throttle body 3 2 are provided with oil above the rear wheel WR. 34. The storage box 35 arranged in front of the fuel tank 34 and above the fuel tank 34 are covered with, for example, a two-seat passenger seat cushion 36 that can be opened and closed. The body frame 20, It is installed to cover: the synthetic resin body shell 3 of the vehicle body frame 20, the part of the engine E above, the throttle body 3 2, the air filter 3 3, the fuel tank 3 4, and the storage box 3 5 8. The body shell 3 8 is a front shell 3 9 arranged on the left and right sides of the main frame 2 2, and covers the driver's feet from the front and is connected to the two front shells 3 9. The front leg shield 40 covers the head tube 2 j from the front and is connected to the two front leg covers 40. The front top shell 4 1 covers the head tube 21 from the rear side and covers the main body from above. The main frame top case 4 is connected to the front top case 41 by the frame 22, and the upper case 43 is connected to the lower part of the two front side cases 39, and the fuel tank 34 and the storage box are covered from both sides. 1238220 (6) 3 5 is constituted by the rear case 4 4. The above-mentioned passenger seat cushion 3 6 is provided to allow the storage of the articles in the storage box 3 5. The fuel tank 34 is filled and removed, and the fuel tank 34 is supplied with oil. It is openable and closable and is arranged on the upper part of the rear case 44. The rear fender 45 covering the rear part of the rear 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 46 for adjusting the amount of air supplied to the engine E is rotatably supported by the main body portion 47. A throttle cable 49 is wound around the throttle cylinder body 48 connected to the throttle valve 46 and disposed on the side of the main body portion 47. The main body portion 47 has an intake passage 50 extending in the front-rear direction of the locomotive, and a throttle valve 46 arranged in the middle portion of the intake passage 50 is transverse to the intake passage 50 and is fixed to be rotatable. The valve shaft 51 is supported on the main body portion 47. The throttle body 48 is disposed on the left side of the main body part 47 in a state facing forward in the traveling direction of the locomotive. The throttle body 48 is fixed to one end of the valve shaft 51. Further, between the throttle body 48 and the main body part 47, a return spring 5 2 for urging the throttle valve 4 6 toward the closing side is provided. The driver of the locomotive resists the return spring 5 2 The throttle cable is pulled by the elastic force to drive the throttle valve 4 6 to the open side. In the main body portion 47, a casing 55 for accommodating the control unit 53 is attached to a side surface on the opposite side to the throttle body 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. 394 -10- 1238220 (7) The above control The unit 53 constitutes a circuit board (not shown) on the circuit board 54 held between the case body 56 and the cover 57. A throttle valve sensor 58 is connected to the circuit board 54 to detect 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 5 6 and a conductive brush 6 0 and 6 protruding from the rotator 5 9 toward the circuit board 54 side. 0, and a resistor 6 1 formed by slidingly engaging with the conductive brushes 60, 60 and printed on the circuit board 54, and the rotator 59 is fitted to the valve so that it cannot rotate relatively and does not shake. The other end of shaft 51. The rotator 59 is coaxial with the valve shaft 51, and is rotatably supported on a support shaft 62 projectingly 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 47 on the upstream side from the throttle valve 46 is provided with a perforation 63 that opens into the intake passage 50 and penetrates through the perforation 63 so that the front-end closed portion surface faces the thin-walled bottom of the intake passage 50. The cylindrical detection tube 64 ′ is provided in the casing body 56 as a whole. The thermistor 65, which is in close contact with the inner surface of the closed end of the front end of the detection tube 64, and the terminal 66 extending from the thermistor 65, which is connected to the circuit board 54 in the detection tube 64, constitute an input circuit. The air temperature sensor 67 and the control unit 53 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 accommodated in the detection tube 64, a sealing compound 68 made of synthetic resin is filled. -11-1238220 (8) The throttle valve sensor 5 8 and the intake air temperature sensor 6 7 'can be connected to the circuit board 5 4 of the control unit 5 3 mounted on the throttle body 4 7. The wiring connecting the throttle sensor 5 8 and the intake air temperature sensor 67 to the control unit 5 3 is made very short. The upper part of the housing 55 is extended to the throttle body 48 side across the upper part of the main body part 47, and the coupler 69 which is opened on the same side as the throttle body 48 is integrally formed in the above. A case body 56 of the case 55. 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 an opening toward the case main body 71. The bowl-shaped casing 72 is used to hold the filtering unit 7 3 between the peripheral parts of 71 and 72 and is combined with each other. The filter case 70 is divided into: an unpurified chamber 74 on the casing 72 side. , And the clean room 75 on the box body 71 side. The case main body 71 of the filter case 70 is fixedly connected to a connection pipe 7 6 for introducing purified air from the air filter 33 to the throttle body 3 2, and the connection pipe 7 6 The upper end of the pipe extends into the purification chamber 7 5. At the downstream end of the connection pipe 7 6, an upstream-side connection cylinder 4 7 a fitted into the main body portion 4 7 of the throttle body 3 2 is fitted into the upper side. (See Figure 4). In addition, a fixing band 7 7 for fixing the connection state of the connection pipe 7 6 to the throttle body 32 is wound around the downstream end of the connection pipe 7 6 and is locked by a bolt member 7 8 The fixing belt 7 7 can fix and maintain the connection state of the connecting pipe 76 to the throttle body 32. Combined with reference to Figure 5 to Figure 8, the lower part of the case main body 71 of the filter case 70 of the air filter 33 is integrally formed. 12-1238220 (9) A cover is provided A fascia plate 79 covering at least the throttle body 4 8 of the throttle body 3 2 disposed obliquely below the air filter 3 3 from the front, and the throttle body 3 2. Since the coupler 6 9 included in the housing 5 5 is also disposed on the throttle cylinder body 4 8 side, the coupler 69 is also covered by the shielding plate 7 9 from the front. The shielding plate 7 9 at a position corresponding to the fixing tape 7 7 is provided with, for example, a circular operation opening 80, and the shielding plate 7 9 is provided with an opening 80 for opening and closing the operation, and The cover 8 1 is arranged on the front side of the shielding plate 7 9. A support hole 82 is provided in the shielding plate 79 at a position deviating from the operation opening 80, and a support 81 made of rubber is inserted into the support shaft 8 3 which is inserted into the support hole 82 to protrude integrally. When the support hole 8 2 is inserted, the diameter of the front end side can be reduced, and a plurality of elastically engaged with the back surface of the shield plate 79 around the support hole 82 are integrally provided at the front end of the support shaft 82. Engagement claws 8 3 a ··. In other words, the cover 81 is at a position for closing the operation opening 80 as shown by a solid line in FIG. 5 and opening the operation opening 80 as shown by a dotted line in FIG. 5. Between the positions, the shield plate 79 is rotatably mounted around the axis of the support hole 82. The support hole 8 2 can be used as a component for adjusting the inner side of the shielding plate 7 9 by removing the cover 8 1. For example, when a carburetor is used instead of the throttle body 47, it can be used as a carburetor. Insertion hole for idle speed adjustment tool. The cover 81 ′ is integrally provided with a plurality of fitting cylinders 8 4 which are divided into -13- 397 1238220 (10) in the circumferential direction. The fitting cylinders 8 4 are elastically formed in a closed state at the operation opening 80. The plurality of engaging claw portions 8 4 a provided at the front end of the fitting cylinder 84 are fitted into the operation opening portion 80, and are elastically engaged with the shield around the operation opening portion 80. On the back surface of the plate 79, a cover 81 is used to maintain the closed state of the operation opening 80. The lower end of the shield plate 7 9 of the part of the engine E corresponding to the cylinder head housing 8 7 is provided with: when the cylinder head housing 8 7 is detached to perform pusher adjustment of the valve device of the engine E, Insert a tool 8 6 such as a wrench into the notch 7 9 a of the cylinder head housing 8 7. In this embodiment, the synthetic resin throttle body cover 1 6 1 covering the throttle body 4 8 of the throttle body 32 from the left side is attached to the air filter 3 3. . That is, the left side of the back of the case main body 7 1 of the filter case 70 of the air damper 33 is integrally provided with a bolt member 1 62 to lock the throttle valve cylinder cover 1. The upper mounting hub 7 1 a of the upper part 6 丨 is provided with a slightly l-shaped engagement provided at the lower part of the left side of the shielding plate 7 9 for the lower part of the throttle cylinder cover 1 6 1. A rectangular engaging hole portion 1 6 3 where the claw portion 1 6 1 a is engaged. The wrong reason is that the engaging claw portion 161a is engaged with the engaging hole 163, and the lower jaw of the engaging claw portion 161a is in contact with the upper part of the throttle body cylinder cover 1 6 1 on the back surface of the shielding plate 79, with a bolt member. 62 is mounted on the mounting hub 7a, and the throttle body cover 1 6 1 is mounted on the air filter 3 3. Below the cylinder head 88 of the engine E is an exhaust pipe connected to the exhaust port (not shown) of the cylinder head 88, which is used to supply fresh primary air to the exhaust gas from the above. The exhaust gas flowing from the exhaust pipe to the exhaust pipe 丨 6 4-14-1238220 (11) The downstream end of the pipeline 1 6 5 in the body is connected to the cylinder head housing 8 7, and the upstream end of the pipeline 1 65 is Connected to the secondary air control valve 1 66 supported by the engine E. The secondary air control valve 1 66 is a filter 167 supported by being connected to the main frame 22. The filter 16 is connected to the downstream end of the air supply pipe 1 68 extending forward from the filter 16 along the main frame 22, and the upstream end of the air supply pipe 16 is extended to the air filter. Above the stent 33, it is open to the air in the vehicle body shell 38. In addition, a fitting groove 1 is provided in the upper part of the back of the case main body 7 1 of the filter case 70 of the air filter 33 to fit the part near the upper end of the air supply pipe 1 6 8. 69, and an engaging pin bolt 1 70 of the air supply pipe 1 68 abutting from above and engaging with the portion to which the fitting groove 1 69 is fitted is integrally provided. In other words, the part near the upper end of the air supply pipe 1 68 is held in the box body by being fitted into the fitting groove 1 69 and abutting and engaging with the engaging pin bolt 1 70 from above. The upper part of the back of the main body 71. Therefore, it is not necessary to mount a special clamp for holding the air supply pipe 168 to the main frame 22. The main body portion 47 of the throttle body 32 is a downstream-side connection cylinder 4 7b (refer to FIG. 4) provided in the body, which is connected to the upstream end of the intake pipe 89 and the downstream end of the intake pipe 89 It 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. It is bent into a slightly C-shape, and the intake pipe 89 is covered with a covering material 90 made of rubber which is fired on the surface of -15-1238220 (12). The side connection cylinder 47b is closely fitted to a connection cylinder portion 90a integrally provided in the covering material 90, and connects 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 8 9 is provided with a mounting hole 9 2 which is opened toward the cylinder head 8 8 side, and is formed so that the front end surface faces the inside of the intake pipe 8 9 and the front end portion of the fuel injection valve 9 1 is hermetically fitted. In the mounting hole 9 2. The rear end portion of the fuel injection valve 91 is liquid-tightly fitted to the cover 9 3, and the cover 9 3 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 that communicates with its downstream end to the rear end of the fuel injection valve 91 and an inlet-side connection pipe 95 that communicates with the upstream end of the fuel supply path 94. The flange is attached to the cover 9 3. The cover 93 is provided with a return flow path 96 branching from the middle of the fuel supply path 94, and a pressure adjustment valve 97 is connected to the return flow path 96. The valve housing 98 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 the upper end portion of the valve housing 98 is attached to the cover 93. -16-1238220 (13) is connected in a liquid-tight manner to the above-mentioned return passage 96. The connecting pipe 9 9 is interposed between the upper end portion of the valve housing 9 8 and the cover 93. That is to say, the pressure regulating valve 97 is formed 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 valve for A peripheral portion of the sheet 100 holds the housing 101 between the valve housing 98, and a valve chamber communicating with the return passage 96 is formed between the valve housing 98 and the diaphragm 100. The spring chamber 10 was formed between the diaphragm 100 and the housing 101. The valve housing 98 is integrally provided with a return-side connection pipe portion 104 that is integrally provided below the inlet connection pipe 95 that is flange-bonded to the cover 9 3 and extends toward the same side as the inlet connection pipe 95. The cylindrical valve seat member 105 connected to the return side pipe portion 104 is a central portion facing the valve chamber 102 and is fitted and fixed so that a part thereof protrudes from the diaphragm 100 side. In the central portion of the diaphragm 100, a valve body 10 that holds the end portion that can abut against the valve chamber 102 side of the valve seat member 105 and can be slightly rocked is accommodated in the spring chamber 103. A spring 1 107 is provided between the housing 101 and the diaphragm 100, and is used to generate a spring force that deflects the diaphragm 100 toward the valve chamber 〇2 side. In such a pressure regulating valve 97, if the hydraulic pressure of the valve chamber 1002 side for pushing the diaphragm 100 toward the spring chamber 103 side is exceeded, the pressure of the diaphragm 100 is pushed toward the valve chamber 1002 side. With the spring force on the spring chamber i 〇3 side, the diaphragm 100 will flex toward the spring chamber 103 side and the valve body 106 will be separated from the valve seat member 105 and communicate with the valve via the return path 〇06. The hydraulic pressure of the fuel supply path 94 of the chamber № 02, that is, the fuel supply pressure to the fuel injection valve 91, is adjusted so as not to exceed a set pressure. -17- 1238220 (14) The pressure regulating valve 97 is arranged adjacent to the fuel injection valve 91 as described above, so the fuel supply between the fuel injection valve 91 and the pressure regulating valve 97 can be shortened. The length of the passage 94 prevents the temperature of the fuel flowing through the fuel supply passage 94 from becoming high. In FIGS. 12 to 14, the fuel tank 34 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. The two fuel tank half 1 1 0, 1 1 The joint 1 of 1 is integrally formed with a crotch 1 1 2 protruding outward. The fuel tank 34 is two rear frames 2 3 supported by the body frame 20, and the rear frame 2 3 is provided with a bracket 1 1 3 for supporting the front part of the fuel tank 34. ·, And a support hub 1 1 4 ·· for supporting the rear part of the fuel tank 34. The crotch 1 1 2 placed on the bracket 1 1 3 ·· is locked to the bracket 113 .. by a bolt 1 1 5. • and a welding nut 116. • The crotch 1 1 2 on the support hub 1 1 4 ·· is locked to the support hub 1 1 4 ·· by bolts 1 1 7 ··. The fuel tank 34 is disposed above the rear wheel WR. In order to avoid interference from the rear wheel WR, the bottom of the fuel tank 34, which is the bottom of the lower fuel tank half 10, is formed by expanding in the left-right direction at the center. That is, the fuel tank 3 4 is formed deeper in the left and right side portions 3 4 L and 3 4 R than the central portion 3 4 C. The merged father photo 15 contains the fuel pump 1 1 8 in the fuel tank 34, and the fuel pump 1 18 is installed on the upper wall of the fuel tank 34, that is, the upper fuel tank half Π 1. On the left and right sides of the fuel tank 34 (left side in this embodiment 1238220 (15) 3 4L), the upper part of the upper wall is provided with a recessed and flat Kuriura mounting portion 1 1 9. On the left and right sides of 3 4 (the right side part 3 4 R in this embodiment), the front part of the upper wall is provided with a hose arrangement part 1 2 0 which is inclined forward and downward. The pump mounting portion 119 is provided with, for example, an oval insertion hole i 2 1 for inserting the fuel pump 1 1 8 into the fuel tank 34. That is, the fuel pumps 1 1 8 are disposed on one of the left and right sides of the fuel tank 34 (the left side portion 34L in this embodiment). A filter (not shown) is connected to a lower portion of the fuel pump 1 1 8, and a filter chamber 1 22 for covering the filter is formed so that a predetermined liquid level is maintained in the filter chamber 1 22. A buoy 1 23 supported on the lower part of the fuel pump 1 1 8 for detecting the fuel level in the fuel tank 34 is supported on 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, six low-level portions 1 24a welded to the pump mounting portion 1 1 9, and a plurality of high-level portions 124 b, such as six raised portions trapezoidal. The lower portions 124a are welded to the upper surface of the pump mounting portion 1 1 9 respectively. Combined with reference to Figure 16 and Figure 17, bolts 1 2 5 ·· that protrude upward from the high portion 1 24b ·· are welded to the lower portion of each of the high portions 124 b • • and sealed from above The bolts 1 2 1 are inserted into the insertion holes 1 2 1. The bolts 1 2 5 are inserted into the outer peripheral portion of the oval flat cover plate 1 26 provided at the upper end of the fuel pump 1 1 8. Bolt-19- 1238220 (16) 1 2 5 ·. Nut 1 2 7 · · Tighten the cover 1 2 6 which is the fuel pump 1 1 8 to the pump mounting portion 11 9. A rubber gasket 128 is interposed between the pump mounting portion 119 and the cover plate 126. The gasket 128 is an opening portion 129 having a high portion 124b for disposing the mounting plate 124, respectively. ····················································································· .. and between the cover plate 126 and the inside and outside of the mounting plate 124 are sandwiched between the pump mounting portion 1 19 and the cover plate 1 2 6. Lu is connected to the upper end of the fuel pump 1 1 8 with a discharge pipe 1 3 0 bent in a slightly L shape, and the fuel pump 1 1 8 will discharge fuel from the discharge pipe 3 0. The cover plate 1 2 6 is a return pipe 1 3 1 which is fixedly installed through the cover plate 1 2 6 in a liquid-tight manner and extends to the lower part of the fuel tank 3 4 on the side of the fuel pump 丨 8. Above the cover plate 2 6, 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 to the right and diagonally toward the front, and are at the discharge pipe; [30] is the upstream end of the fuel® hose 1 32 connected to the return pipe 3 1 is a downstream end connected to a return hose 1 3 3 'The upstream end of the return hose τ 3 3 is a return-side connection pipe portion 104 connected to the pressure regulating valve 97. At the front end of the fuel tank 3 4 along the directions of the discharge pipe 130 and the return pipe 1 31, that is, the crotch 1 at the right front end of the fuel tank 3 4 with the fuel pump 1 1 8 arranged at the front left side. 1 2, a notch 1 3 5 is provided, and the notch 1 3 5 is formed to allow the fuel hose 3 2 and the return hose 丨 3 3 to pass through the crotch; i 2 -20-1238220 (17) and configured in the fuel tank 3 4 The space between the storage box 3 and 5 in the front. The fuel hose 1 3 2 and the return hose 1 3 3 are discharged from the discharge pipe 1 3 0 and the return pipe 1 3 1 through the hose arrangement portion 1 2 0. The notch 1 3 5 extends downward, and is bent behind the storage box 35 to extend toward the left side of the storage box 35. In other words, the fuel hoses 1 2 3 and the return hoses 1 3 3 connected to the discharge pipe 1 3 0 and the return pipe 1 3 1 are bent in a U-shape and arranged to open to the left side behind the storage box 3 5. On the left side of the storage box 3 5, although the fuel hose 3 2 and the return hose
1 3 3是倂行朝前方延伸，而燃料軟管丨3 2的下流端，是被 連接在局壓過濾器1 3 6，該高壓過濾器丨3 6是在置物箱3 5 的前部左側以支承構件1 3 4被支承在其中一邊的後框架 2 3的前部，上流端被連接在高壓過濾器丨3 6的燃料軟管 137，是被連接到用來將燃料供給到燃料噴射閥91的蓋子 9 3的入口側連接管9 5。並且上述高壓過濾器丨3 6，是在 幸曰由將主框架頂外殼4 2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。1 3 3 is limping forward, while the downstream end of the fuel hose 丨 3 2 is connected to the local pressure filter 1 3 6 which is on the left side of the front of the storage box 3 5 The front part of the rear frame 23 is supported by the supporting member 1 3 4 and the upstream end is connected to the high-pressure filter 36 fuel hose 137, which is connected to the fuel injection valve for supplying fuel The inlet side of the cover 91 3 is connected to the tube 9 5. In addition, the high-pressure filter 36 is in a position where maintenance can be easily performed by removing the main frame top case 42, and is supported by the rear frame 23 by the support member 134.
燃料軟管132及回流軟管133,是連接在蓋子93 E力n周疋閥9 7 ’來自於燃料泵浦n 8的燃料是往復循 到燃料噴射閥丨9丨的附近的壓力調整閥”，即使將引擎 配置在燃料軟管132與回流軟管133的下方，也可防止 料的溫度上升。 一上述水浦女裝邰1 1 9及軟管配置部丨2〇，是以用來 蓋燃料泵浦1 1 8的上端、搬μ 士 燃枓軟管、及回流軟管1 的外殼1 3 8從上方被覆袭：：^ = ^考，該外殼1 3 8，是被鎖裝在 -21 - 1238220 (18) 定於上述燃料泵浦1 1 8的蓋板1 2 6的一對支承構件；ι 3 9、 1 9。也就是說，外殼1 3 8，是經由支承構件1 3 9、1 3 9而 被女裝在蓋板1 2 6。 支承構件1 3 9、1 3 9，是隔著油箱3 4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1 1 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 . •中的各一對兩組的螺栓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 β 接螺母1 4 0、1 4 0，外殼1 3 8是被載置於支承構件1 3 9、 I 3 9上，插穿外殼1 3 8及支承構件1 3 9、1 3 9的螺栓構件 141、141是被螺合在焊接螺母14〇、14〇。 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的右側前部，且是被支承在右側後 框架23所固定的支架丨丨3，如第1 8圖所示，是藉由螺栓 II 5及焊接螺母1 1 6，與油箱3 4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的下部，如第1 2圖所示，是經由一對安裝 構件143 ··而被支承在兩後框架23 ··的前部間所設置 的支承板1 42上，置物箱3 5的後部的左右上端部，如第 1 8圖所示’是經由安裝構件丨4 4 ··被支承在支架1 1 3 · .的前部。 在一體地設置於置物箱3 5的後部的左右上端的支承 鍔部3 5 ··及支架丨〗3 ·.的前部之間是分別中介安裝著 -22- 1238220 (19) 安裝構件1 44 ··，在支承鍔部3 5 . ·、抵接於該支 部3 5的上面部的合成樹脂製的墊片149· •、以及 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 的墊片1 4 8 ·.。具有卡合於墊片1 4 8的卡止頭部 的螺栓147，是插穿於墊片148. ·及軸環145. · 接螺母146· ·是被固定在支架113. ·的前部下面 由將螺合於焊接螺母146. ·的上述螺栓147..鎖 則讓置物箱3 5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 被支承在置物箱3 5的前端中央上部，當將乘車用座f 關閉時用來支承該乘車用座墊3 6的後部的支承板1 5 設置在兩後框架23 ..的後部間，固定於乘車用座3 的底板3 6a的下面部的一對彈性材料1 5 3 .·是抵接 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 當在關閉狀態施加於乘車用座墊3 6的荷重較小 乘車用座墊3 6的前後方向中間部並不會抵接於油箱 可是當荷重變大而乘車用座墊36朝下方撓曲時，用 承乘車用座墊3 6的荷重的座墊荷重支承位置是在上 浦安裝部1 99的周圍的複數位置，在該實施例中是三 置，設定在油箱3 4的上壁部，固定在乘車用座墊3 6 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 上述各座墊荷重支承位置可抵接於油箱3 4的上壁部 也可以省略上述彈性材料1 54C，在一對座墊荷重支 承鍔 在安 • » 屬製 14 7a ，焊 ，藉 緊， 〇 閉地 g 36 1是 ^ 36 於支 i ° 時， 34， 來支 述泵 個位 的底 是在 。而 承位 1238220 (20) 置將彈性材料1 5 4 A、1 5 4 B抵接於油箱3 4的上壁部。 用來將燃料供給到油箱3 4的燃料注入口（沒有圖示 )是設置在油箱3 4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 3 4的上壁部。 接下來針對該實施例的作用來加以說明，在空氣濾淸 器33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中的至少節流閥筒體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 到節流閥筒體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 ，該控制單元53也是以遮蔽板79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。 用來從側邊覆蓋節流閥主體3 2的節流閥筒體4 8的節 流閥筒體護罩1 6 1是安裝在空氣濾淸器3 3的濾淸器盒體 7 〇，所以可以防止污水或泥巴從節流閥主體3 2的側邊噴 到節流閥筒體4 8。 在用來將導引來自於空氣濾淸器3 3的淨化空氣的連 接管76連接到節流閥主體32的固定用帶77所對應的位 置，是在遮蔽板7 9設置有操作用開口部8 0，而可將操作 用開口部80進行開閉的盖子81是安裝在遮蔽板79，所 以雖然有遮蔽板7 9，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 40a -24- 1238220 (21) 易地進行固定用帶77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內的燃料泵浦1 1 8的泵浦安 裝邰1 1 9 ’是朝下方凹陷且設置在油箱3 4的上壁部，是 以外殼1 3 8從上方覆蓋該泵浦安裝部丨i 9，所以即使將對 於燃料栗浦1 1 8的燃料軟管丨3 2及回流軟管丨3 3等連接部 配置在栗浦安裝部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丨丨9，當要供油到油 箱3 4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1 1 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3 4，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 2 6是被安裝在泵浦安裝部1 1 9，由 於是經由支承構件139、139將外殼138安裝在蓋板126 ，所以不需要將外殼1 3 8固定在油箱3 4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 34 —起鎖裝被安裝在，支承油箱34而設置在車體框架20 的後框架23所設置的支架1 1 3，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，可以堅固地支承外殻 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 -25 - 1238220 (22) 置在後輪W R的上方所配置的油箱3 4的左右其中一側（ 在該實施例中是左側部34L )，而可以將燃料泵浦丨丨8配 置在油箱3 4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3 4的左右方向中央部3 4 C較淺，可 是藉由將燃料泵浦1 1 8配置在油箱3 4的左右其中一側， 則可將燃料泵浦1 1 8配置在油箱34的較深位置。在油箱 3 4的左右另一側（在該實施例中是右側部3 4 r )的前端部 ’是设置有將從燃料栗浦1 1 8側延伸出的燃料軟管1 3 2及 回流軟管1 3 3通過配置在油箱3 4的前方的置物箱3 5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在油箱3 4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1 3 2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側的荷重作用到外殻1 3 8 〇 以上說明本發明的實施例，本發明並不限定於上述實 施例，只要不脫離本發明的請求範圍，可以進行各種設計 -26- 1238220 (23) 變更。 在上述實施例中，雖然是說明使用節流閥主體3 2來 作爲進氣量調節手段，而使用化油器來作爲進氣量調節手 段時也適用本發明。 (發明效果） 藉由以上的第1發明，可避免零件數量的增加，且可 防止前輪噴起的污水或泥巴噴到節流閥筒體。 藉由第2發明，即使有遮蔽板也沒關係，可容易進行 | 固定用帶的鎖緊與放鬆作業，可以提昇維修時或組裝時的 作業性。 錯由第3發明’則可防止污水或泥巴從側邊噴到節流 閥筒體。 藉由第4發明，則可提高用來控制燃料噴射閥的作動 的控制單元的防水性及防泥巴性。 【圖式簡單說明】 β 第1圖是機車的全體側面圖。 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。 -27- 1238220 (24) 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1 1圖是第1 〇圖的1 1 — 1 1線剖面圖。 第1 2圖是機車的後部縱剖面圖。 第1 3圖是第1 2圖的1 3 - 1 3線剖面圖。 第1 4圖是第1 3圖的1 4 — 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圖 〇 第16圖是第13圖的16 — 16線放大剖面圖。 第1 7圖是第1 6圖的1 7 — 1 7線剖面圖。 第18圖是第13圖的18 — 18線放大剖面圖。 【主要元件對照表】 2 0 :車體框架 2 1 :頭管 2 2 :主框架 2 5 :轉向車把 3 2 :作爲進氣量調節手段的節流閥主體 3 3 :空氣濾淸器 4 6 :節流閥 4 7 :主體部 -28- 1238220 (25) 4 8 :節流閥筒體 4 9 :節流閥鋼索 5 3 :控制單元 7 〇 :濾淸器盒體 7 6 :連接管 77 :固定用帶 7 9 :遮蔽板 8 0 :操作用開口部 81 :蓋子 9 1 :燃料噴射閥 1 6 1 :節流閥筒體護罩 E :引擎 WF :前輪The fuel hose 132 and the return hose 133 are pressure regulators connected to the lid 93 E force n valve 9 7 'The fuel from the fuel pump n 8 is reciprocated to the vicinity of the fuel injection valve 9'. Even if the engine is arranged below the fuel hose 132 and the return hose 133, the temperature of the material can be prevented from rising.-The above-mentioned water pump women's clothing 1 1 9 and the hose configuration section 20 are used for covering. The upper end of the fuel pump 1 1 8 and the casing 1 3 8 of the μ-burner hose and the return hose 1 are covered from above: ^ = ^ Consider that the casing 1 3 8 is locked in- 21-1238220 (18) A pair of supporting members fixed to the cover plate 1 2 6 of the fuel pump 1 1 8 mentioned above; ι 3 9, 1 9. That is, the casing 1 3 8 is via the supporting member 1 3 9 And 1 3 9 are placed on the cover 1 2 6. The supporting members 1 3 9 and 1 3 9 are arranged on the opposite sides of each other through the insertion holes 1 4 of the fuel tank 3 4 and are used for Cover plate 1 2 6 of the fuel pump 1 1 6 Six sets of bolts 1 2 5 ·. And nuts 1 2 7. · 1 and 2 bolts 1 2 5 ·· And nuts 1 2 7 .. and locked on the cover 1 2 6 is formed so as to bulge upward from the cover plate 1 2 6. On the upper inner surface of each support member 1 3 9, 1 3 9, a welded β nut 1 4 0, 1 4 0, and a housing 1 are fixed. 38 are bolt members 141 and 141 that are placed on the support members 1 3 9 and I 3 9 and are inserted through the housing 1 3 8 and the support members 1 3 9 and 1 3 9. 14〇. The position away from the fuel pump 1 18, that is, the right end portion of the casing 1 38 is a right front portion supporting the fuel tank 34, and is a bracket fixed to the right rear frame 23. As shown in Figure 18, bolts II 5 and welding nuts 1 1 6 and the crotch 1 1 2 on the right front of the fuel tank 34 are locked to the bracket 1 1 3. _ Storage box 3 As shown in FIG. 12, the lower part of 5 is supported by a pair of mounting members 143 ··· on a support plate 1 42 provided between the front parts of the two rear frames 23 ··, and the rear part of the storage box 3 5 As shown in FIG. 18, the left and right upper end portions are supported on the front portion of the bracket 1 1 3 ·· via the mounting member 4 4 ··. The left and right upper ends are integrally provided at the rear portion of the storage box 3 5. Support Parts 3 5 ··· and brackets 丨〗 3 ·. Between the front parts are -22-1238220 (19) Mounting members 1 44 ··, which are in contact with the support part 3 5 ·· 3 5 The upper part of the synthetic resin gasket 149 · • and the mounting member 144 .. are inserted into a metal cylindrical collar 145 ′. The gasket 149 and the upper end of the collar 145 are The abutting pad of gold 1 4 8 · .. The bolt 147 having the locking head engaged with the washer 1 4 8 is inserted through the washer 148. · and the collar 145. · The nut 146 · · is fixed to the bracket 113. · The lower part of the front The bolts 147, which are screwed to the welding nut 146, and the lock 147 allow the upper left and right upper ends of the storage box 3 5 to be supported on the bracket 1 1 3. The front end of the passenger seat cushion 3 6 is via the hinge 1 50 can be opened and supported on the upper center of the front end of the storage box 35, and the support plate 15 for supporting the rear seat cushion 3 6 when the passenger seat f is closed is provided on both rear frames 23 .. Between the rear part, a pair of elastic materials 1 5 3 fixed to the lower part of the bottom plate 3 6a of the passenger seat 3... Are abutting plates 1 5 1. On the support plate 1 5 1, both ends of the armrest rod 1 5 2 are mounted. When the load applied to the passenger seat cushion 36 is small in the closed state, the middle portion of the passenger seat cushion 3 6 in the front-rear direction is not affected. When the abutment is against the fuel tank, when the vehicle seat cushion 36 is bent downwards, the seat cushion load supporting position with the load of the vehicle seat cushion 36 is a plurality of around the Ueura mounting portion 1 99 The position, in this embodiment, is three, and is set on the upper wall portion of the fuel tank 34, three elastic materials fixed to the lower portion of the passenger seat cushion 3 6 plate 3 6 a 1 5 4 A, 1 5 4 B, 1 5 4 C The above-mentioned seat cushion load bearing position can be abutted against the upper wall of the fuel tank 34, or the above-mentioned elastic material 1 54C can be omitted, and a pair of seat cushion load supports can be installed in An »» Metal 14 7a, Welding, borrowing tightly, 〇 closed ground g 36 1 is ^ 36 when the support i °, 34, to support the bottom of the pump single-digit position. The holder 1238220 (20) places the elastic materials 1 5 4 A and 1 5 4 B against the upper wall of the fuel tank 34. A fuel injection port (not shown) for supplying fuel to the fuel tank 34 is provided at a slightly central portion of an upper wall portion of the fuel tank 34, and a fuel injection cap 1 5 5 for closing the fuel injection port is possible. It is detachably mounted on the upper wall portion of the fuel tank 34. Next, the function of this embodiment will be described. The filter case 70 of the air filter 33 is integrally provided with at least the throttle body 4 8 covering the throttle body 3 2 from the front. The shielding plate 7 9 can prevent the increase in the number of parts, and can prevent the sewage or mud sprayed from the front wheels from being sprayed onto the throttle body 4 8. A control unit 5 3 is attached to the main body portion 47 of the throttle body 32 to control the operation of the fuel injection valve 91 that supplies fuel to the engine E. The control unit 53 is also covered with a shielding plate 79 from the front. Therefore, the waterproof and mudproof properties of the control unit 53 can also be improved. The throttle body hood 1 6 1 for covering the throttle body 4 2 of the throttle body 3 2 from the side is a filter case 7 〇 mounted on the air filter 3 3, so It is possible to prevent sewage or mud from being sprayed from the side of the throttle body 32 to the throttle body 48. At the position corresponding to the fixing band 77 for connecting the connection pipe 76 that guides purified air from the air filter 33 to the throttle body 32, an operating opening is provided in the shield plate 79. 80, and the cover 81 that can open and close the operation opening 80 is attached to the shielding plate 79. Therefore, although there is a shielding plate 79, only a finger is inserted through the operation opening 80 from the front to press the fixing strap 7 7. From the side surface of the shield plate 7 9 40a -24-1238220 (21) The locking and loosening operation of the fixing belt 77 can be easily performed, and the workability during maintenance or assembly can be improved. The pump mounting 邰 1 1 9 ′ for mounting the fuel pump 1 1 8 accommodated in the fuel tank 3 4 is recessed downward and is provided on the upper wall portion of the fuel tank 3 4. The casing 1 3 8 covers the pump from above. The pump mounting section 丨 i 9, even if the fuel pump 丨 3 2 and the return hose 丨 3 3 for the fuel pump Kuraura 1 1 8 are arranged on the Kuraura mounting section 119, it can be prevented from being connected with the vehicle. The interference of the seat cushion 36 can increase the degree of freedom in setting the height of the seat cushion 36 for a vehicle. In addition, the casing 36 covers the pump mounting portion 9 from above. When the fuel is supplied to the fuel tank 3 4 and the passenger seat cushion 3 6 is opened, the connection portion can be surely prevented from contacting and the protection against The connection portion of the fuel pump 1 1 8 does not allow the connection portion to be exposed and can obtain a better appearance. A fuel pump 1 1 8 is inserted into the fuel tank 3 4, and an insertion hole 1 2 1 provided in the pump mounting portion 1 1 9 is closed from above, and a cover plate 1 2 provided at the upper end of the fuel pump 1 1 8 is prepared 6 is mounted on the pump mounting portion 1 1 9. Since the casing 138 is mounted on the cover plate 126 via the supporting members 139 and 139, there is no need to fix the casing 1 3 8 on the fuel tank 34 side by a special member. Can reduce the number of parts. The right front part of the casing 1 3 8 away from the fuel pump 1 1 8 is installed with the fuel tank 34 in a lock-up manner, and supports the fuel tank 34 and is provided on the rear frame 23 of the vehicle body frame 20. The bracket 1 1 3 Therefore, it is not necessary to install the parts of the housing 1 8 and the number of parts can be reduced, and the housing can be firmly supported at 138 °. Because the above-mentioned pump mounting portion 1 1 9 and the above-mentioned fuel pump 1 1 8 are equipped with -25- 1238220 (22) It is located on one of the left and right sides of the fuel tank 34 arranged above the rear wheel WR (the left side in this embodiment is 34L), and the fuel pump 丨 8 can be arranged in the fuel tank 34 Deep position. In other words, although the central portion 3 4 C of the fuel tank 34 is relatively shallow because it is disposed above the rear wheel WR, the fuel pump 1 1 8 is disposed on one of the left and right sides of the fuel tank 34. The fuel pump 1 1 8 is arranged at a deeper position of the fuel tank 34. On the left and right sides of the fuel tank 34 (the right side part 3 4 r in this embodiment), a front end portion 'is provided with a fuel hose 1 3 2 and a return hose extending from the fuel pump 1 1 8 side. The tubes 1 3 3 pass through the gap 1 3 5 between the rear part of the storage box 3 5 in front of the fuel tank 3 4, the fuel hose 1 3 2 and the return hose 1 3 3, and are on the rear side of the storage box 3 5 The bend is configured 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 is in front of the fuel tank 34, it is possible to prevent the fuel hoses 1 2 2 and the return hoses 1 3 3 from being largely bent, and allow them to be bent slightly, and can be smoothly arranged. Fuel hose 1 3 2 and return hose 1 3 3. In the upper wall portion of the fuel tank 3 4 at 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 used for a large load. The seat cushion 36 can be sunk, and the plurality of positions around the pump mounting portion 1 1 9 can support the load of the vehicle seat cushion 3 6 on the upper wall portion of the fuel tank 34, thereby suppressing the vehicle seat cushion 3 The deformation of 6 can prevent the load from the seat cushion 36 on the passenger side from acting on the housing 1 380. The embodiments of the present invention have been described above. The present invention is not limited to the above embodiments, as long as it does not depart from the The scope of the request can be changed in various designs-26-1238220 (23). In the above embodiment, although the throttle body 32 is used as the means for adjusting the amount of intake air, the present invention is also applicable when a carburetor is used as the means for adjusting the amount of intake air. (Effects of the Invention) According to the first invention described above, it is possible to prevent an increase in the number of parts and to prevent sewage or mud sprayed from the front wheels from being sprayed onto the throttle body. According to the second invention, even if there is a shielding plate, it is easy to perform the locking and loosening operation of the fixing belt, and the workability during maintenance or assembly can be improved. The third invention 'prevents the sewage or mud from being sprayed into the throttle body from the side. According to the fourth invention, it is possible to improve the waterproofness and mud-proof property of the control unit for controlling the operation of the fuel injection valve. [Brief description of the drawings] β FIG. 1 is an overall side view of the locomotive. Fig. 2 is a perspective view of the center portion of the locomotive in the front-rear direction with the vehicle body casing 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. -27- 1238220 (24) Fig. 7 is a rear view of the air filter viewed from the direction of the 7 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 taken along the line 1 1-11 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 1-13 in Fig. 12. Fig. 14 is a sectional view taken along the line 1 4-14 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 line 17-17 in Fig. 16. Fig. 18 is an enlarged sectional view taken along line 18-18 in Fig. 13; [Comparison table of main components] 2 0: Body frame 2 1: Head pipe 2 2: Main frame 2 5: Steering handlebar 3 2: Throttle body 3 as an air volume adjustment means 3 3: Air filter 4 6: Throttle valve 4 7: Main body -28-1238220 (25) 4 8: Throttle body 4 9: Throttle cable 5 3: Control unit 7 〇: Filter case 7 6: Connection pipe 77: Fixing belt 7 9: Shielding plate 80: Operating opening 81: Cover 9 1: Fuel injection valve 1 6 1: Throttle body cover E: Engine WF: Front wheel
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