1323762 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種附屬内藏在燃料箱内的燃料泵本體 上，且在將燃料泵本體安裝在燃料箱規定部位上時使用的 燃料聚殼的結構。 【先前技術】 習知的燃料栗殼係容易組裝且具有燃料通路和燃料通 路内的過濾器本體（例如參考專利文獻1 )。 (專利文獻1 )日本專利特開平1 1 - 2 0 0 9 7 4號公報（圖1 ) 根據下述附圖介紹專利文獻1。 圖9是說明現有技術基本結構的視圖，在該圖中顯示了 在燃料排出口 2 0 1輸出側形成燃料通路2 0 2，將過濾器本 體2 0 3設置在燃料通路2 0 2内，在燃料通路2 0 2輸出側設 置了燃料出口 2 0 4和燃料排出口 2 0 6的燃料箱内藏型燃料 泵的燃料泵殼2 0 7。 從燃料泵2 0 8之排出管2 0 9排出的燃料通過設置在燃料 泵殼2 0 7的燃料通路2 0 2内的過濾器本體2 0 3，從燃料出 口 2 0 4通過燃料供給管2 1 4向引擎側輸出。 一旦燃料通路202内的壓力超過規定壓力，壓力調整用 安全閥2 0 5開啟，燃料通路2 0 2内的燃料從燃料排出口 2 0 6 向燃料箱側流動。 從燃料泵2 0 8之排出管2 0 9排出的燃料碰撞凸緣構件 2 1 1的燃料出口側的側面2 1 2而改變方向，碰撞凸緣構件 2 1 1的燃料出口側的壁面2 1 3而再次改變方向，進入燃料 5 312XP/發明說明書(補件)/94-01/93129206 1323762 供給管2 1 4。 也就是，從燃料泵2 0 8之排出管2 0 9排出的燃 緣構件2 1 1的燃料出口側的側面2 1 2和燃料出口 2 1 3而改變流動方向，並進入燃料供給管2 I 4，改 次。對於這種流動，所需要的是能夠使燃料更順利 而使燃料通路2 0 2的流路損失減少。 【發明内容】 (發明所欲解決之問題） 本發明的目的是提供一種燃料泵殼，它可以使 通路的燃料泵殼内的燃料流動更順利，而且提高 位置和方向的自由度。 (解決問題之手段） 申請專利範圍第1項之發明係一種燃料泵殼， 在燃料泵本體上且在將燃料泵本體安裝在燃料箱 上時使用的容器，内藏有從上述燃料泵排出口朝 燃料通路者，其特徵在於上述燃料通路包括與上 排出口垂直的燃料出口 ，且包括可將從燃料泵排 的燃料順利地導向燃料出口的導向面。 在燃料通路内，包括與上述燃料泵排出口垂直 口 ，而且還包括可將從燃料泵排出口排出的燃料 向燃料出口導向面。 由於具備使燃料從排出口順利地導向燃料出口 面，因此，在燃料出口和燃料泵排出口方向不同的 燃料可以更順利地流動。 312XP/發明說明書(補件)/94-01/93丨29206 料係由凸 側的壁面 變方向兩 地流動， 具有燃料 燃料出口 其係附著 規定位置 向燃機的 述燃料栗 出口排出 的燃料出 順利地導 的導向 情況下， 6 1323762 由於燃料可以更順利地流動，因此可以減少燃料通路的 損失。 而且，由於具備朝向燃料出口進行導向的導向面，因 此，可以一邊維持燃料的順利流動，一邊改變燃料出口的 位置。 申請專利範圍第2項之發明的特徵在於上述導向面係藉 由使面對燃料泵排出口之燃料泵殼的壁面傾斜而形成。 藉由使燃料泵殼的壁面傾斜而形成為了將從燃料泵排 出口排出的燃料順利地導向燃料出口而傾斜的導向面。 由於使燃料泵殼的壁面傾斜而形成導向面，因此，無需 準備添加構件，就可以使燃料通路的燃料更順利地流動。 申請專利範圍第3項之發明的特徵在於上述導向面係上 述燃料通路内的傾斜型導向板。 以傾斜型導向板作為為了將從燃料泵排出口排出的燃 料順利地導向燃料出口而設置於燃料通路的導向面。 由於以傾斜型導向板作為設置於燃料通路的導向面，因 此，無需依靠燃料泵殼的形狀，而可藉由導向板使燃料流 動偏向，順利地流向燃料出口 。 申請專利範圍第4項之發明的特徵在於使當燃料通路内 的壓力超過規定壓力時開啟而使燃料返回燃料箱的安全閥 面向上述燃料通路。 由於使當壓力超過規定壓力時開啟，而使燃料返回燃料 箱的安全閥面向上述燃料通路，因此，可以不需要其他燃 料返回配管以及安全閥安裝支架等與安全閥有關的添加零 7 312XP/發明說明書(補件)/94-01 /93129206 1323762 件。 且，由於安全閥與燃料泵殼一體化，故可有效 制多的燃料泵殼的轉動空間。 (發明效果） 在申請專利範圍第1項之發明中，由於包括可 使其朝向燃料出口順利流動的導向面，具有燃料 利地流動，減少燃料通路損失的優點。 在申請專利範圍第2項之發明中，由於使燃料 面傾斜而形成導向面，因此具有無需準備添加構 燃料更順利地流動的優點。 在申請專利範圍第3項之發明中，由於以附設 導向板作為導向面，因此具有無需依靠燃料泵殼 可使燃料順利地朝向燃料出口流動偏向的優點。 在申請專利範圍第4項之發明中，由於使當壓 定壓力時開啟而使燃料返回燃料箱的安全閥面向 通路，因此具有可以不需要其他燃料返回配管以 安裝支架等與安全閥有關的添加零件的優點。 【實施方式】 圖1是具備本發明第一實施形態之燃料泵殼的 的側視圖，附圖是符號箭頭所示方向所看見的圖 二輪機車10主要包括車體框架11、安裝在車： 之頂管11a上的前叉12、安裝在前叉12上的前』 前叉1 2相連的把手1 4、在車體框架1 1的後部可 動安裝的組合擺動引擎1 5、安裝在組合擺動引擎 312XP/發明說明書(補件)/94-01 /93129206 地減少限 導引燃料 可以更順 泵殼的壁 件即可使 的傾斜型 的形狀即 力超過規 上述燃料 及安全閥 二輪機車 面。 豐框架1 1 命1 3、與 以上下擺 1 5上的 8 1323762 後輪1 6、懸掛組合擺動引擎1 5後端部的後緩衝單元1 7、 安裝在車體框架1 1後部上部的置物箱1 8、設置安裝在置 物箱1 8上且可開閉地安裝的椅座1 9。 車體框架1 1是由連接部1 1 C將與頂管1 1 a —體形成之 壓鑄製造的前框架1 1 F以及壓鑄製造的後框架1 1 R連接在 一起所形成的框架。 組合擺動引擎1 5係由引擎2 1和附有離心離合器之皮帶 變換器無段變速機2 2組成。引擎2 1係氣缸部分面臨置物 箱1 8和燃料箱4 2之間且大致向水平方向傾斜的水冷式4 衝程引擎。 且，二輪機車1 〇係以車體蓋3 0覆蓋車體框架1 1。車體 蓋3 0包括覆蓋頂管1 1 a前部的前蓋3 1、夾持頂管1 1 a且 覆蓋前蓋3 1的後部並同時覆蓋駕駛員腳部前方的腿遮罩 3 2 '承載駕駛員腳部的腳踏板（低床式腳踏板）3 3、從腳 踏板3 3的外緣向下方延伸的左右一對底板側蓋3 4、覆蓋 底板側蓋3 4下緣之間的底蓋3 5、覆蓋椅座1 9下端前部的 椅座下部蓋3 6、覆蓋椅座1 9下後部和後輪1 6上方的後蓋 37、左右一對側蓋38。 此種二輪機車1 0係將總開關（點火開關）4 1配置在腿 遮罩3 2部分内，將燃料箱4 2和内藏在燃料箱4 2内之燃料 泵配置在腳踏板33的下方，將圖中未示的支架設置在車體 框架1 1的後部上端部上，同時將散熱器用備用油箱4 4、 蓄電池45和控制單元46配置在該支架上。 圖中元件符號51表示手柄，52表示左煞車桿，53表示 312XP/發明說明書(補件)/94-01 /93129206 1323762 儀錶板、5 4表示後照鏡，5 5表示左右一對方向指示燈，5 6 F 表示前側手柄蓋，5 6 R表示後側手柄蓋，5 7表示頭燈，5 8 表示設置在前蓋31内的喇叭，59表示與前叉12 —起轉動 的前擋泥板，6 1表示左右一對引擎吊鉤，6 2表示引擎啟動 踏板，63表示設置在車體左側的空氣濾清器，64表示化油 器，6 5表示設置在引擎2 1的曲柄軸2 1 a右端的引擎冷卻 用散熱器，6 6表示引擎用排氣管，6 7表示設置在車體右侧 的排氣用消音器，7 1表示主支撐架，7 2表示後擋泥板，7 3 表示尾燈，74表示後方向指示燈，75表示托架，He表示 頭盔。 圖2是圖1的2部放大剖視圖，顯示裝配本發明第一實 施形態之燃料泵殼的燃料箱的剖視圖。 燃料泵殼是附屬在燃料泵4 3本體上且在將燃料泵4 3本 體安裝在燃料箱4 2内規定部位上時使用的容器，在内藏有 從燃料泵4 3的排出口 81通向引擎21 (參考圖1 )之燃料 通路8 2的燃料泵殼8 0内，燃料通路8 2包括與燃料泵之排 出口 8 1垂直的燃料出口 8 3，還包括使從燃料泵4 3之排出 口 81排出的燃料，順利地導向燃料出口 8 3的傾斜導向面 84 ° 接著，將燃料供應路85設置在燃料出口 83内，將燃料 管8 7朝向引擎側安裝在燃料供應路8 5的出口 8 6上。 將與安全閥8 8相連的燃料排出口 8 9設置在燃料通路8 2 内。 9 1是從燃料箱4 2吸入燃料的吸入口，9 2是吸濾器，9 3 10 312XP/發明說明書(補件)/94-01/93129206 1323762 是燃料缺少檢測單元，94是燃料缺少檢測用浮子。 下文對燃料泵殼8 0的安裝關係進行介紹。 將燃料箱4 2安裝在前框架1 1 F上，使燃料泵殼8 0嵌入 的容器安裝支架9 6被設置在燃料箱4 2上面。 為了將燃料泵殼8 0固定在燃料箱4 2上，透過輔助支架 97，預先將螺釘98安裝在容器安裝支架96上。 之後，將燃料泵本體4 3、安裝了安全閥8 8的燃料泵殼 8 0和密封構件9 9嵌入容器安裝支架9 6，將固定構件1 0 1 載置在燃料泵殼8 0上，最後，由螺帽1 0 2固定燃料泵殼 80 > 一旦燃料通路内壓超過規定壓力就開啟而使燃料返回 燃料箱42内的安全閥88係設置面向燃料通路82。 透過將安全閥8 8設置面向燃料通路8 2，可以不必設置 燃料返回配管和安全閥安裝支架等與安全閥有關的添加零 件。 又，由於安全閥88與燃料泵殼80 —體化，因此可有效 地活用限制多之燃料泵殼80的轉動空間。 圖3是沿圖2中箭頭3方向的視圖，顯示形成在燃料泵 殼80内的燃料通路82以及將燃料供應通路85設置在燃料 通路82的排出口 83内的情況。 1 0 3是向燃料泵4 3 (參考圖2 )供應電源的電源供給連 接器。 藉由例如以點P為中心沿箭頭a或b移動地配置燃料通 路82,可以一邊維持燃料的順利流動一邊改變燃料出口 83 11 312XP/發明說明書(補件)/94-01 /93129206 1323762 的位置。 也就是藉由移動包括傾斜導向面84(參考圖2)的燃料 通路8 2，可以不損害燃料順利流動地改變燃料出口 8 3的 位置。 圖4係本發明第一實施形態之裝配燃料泵的燃料泵殼的 作用圖，通過吸濾器92從吸入口 91如箭頭c所示般地進 入燃料泵4 3的燃料係從燃料排出口 8 1如箭頭d所示般地 進入燃料通路82内，藉由從排出口 81朝向燃料出口 83 進行導向的導向面8 4的作用，燃料可以更順利地流向燃料 出口 83。然後，一旦燃料通路82内的燃料壓力上升到規 定壓力之上，此燃料便藉由安全閥88而如箭頭e所示般地 流動。 從燃料泵排出口 8 1排出的燃料被傾斜於燃料通路8 2配 置的導向面8 4導向，緩緩地改變方向並流入燃料供應管 8 5内。 由於燃料藉由導向面84緩緩地改變方向，順利地流動， 並進入燃料供給管8 5内，流動紊亂很少。 結果，可以減少燃料通路8 2的損失。 而且，由於安全閥88與燃料泵殼80 —體化，因此不需 要與安全閥有關的添加零件，可以減少限制多之燃料泵殼 8 0的轉動空間。 而且，使從燃料泵排出口 8 1排出的燃料順利地朝向燃 枓出口 83之傾斜導向面84係藉由使燃料泵殼80的壁面 1 0 4傾斜而形成。 12 312XP/發明說明書(補件)/94-01/93129206 1323762 由於藉由使燃料泵殼80的壁面104傾斜而形成導向面 8 4，因此不需添加構件，就可以使燃料通路8 2内的燃料更 順利地流動。 又，燃料通路8 2内導向面8 4的傾斜角 0 1、燃料泵排 出口 81的中心和燃料出口側壁面1 0 5的距離L1以及燃料 出口側上部壁面1 0 6的高度Η1可以考慮燃料通路8 2的損 失而任意地設定。 回到圖3，燃料通路8 2之寬度W1、W 2亦可同樣地任意 設定。 藉由設置具有導向面84的燃料通路82，在燃料出口 83 與燃料泵排出口 8 1的方向不同的情況下，可使燃料順利地 流動。 若能使燃料可更順利地流動，則由於可減少燃料通路8 2 的損失，因此，燃料泵43所需要的功率較小，而可以達到 燃料泵4 3的小型化。 由於配置於燃料箱4 2 (參照圖2 )内的燃料泵4 3可以 達到小型化，因此可以謀求燃料箱42容量的提昇。 圖5為本發明第二實施形態之燃料泵殼的剖面圖，圖中 顯示導向面8 4係由將面對燃料泵排出口 8 1之燃料泵殼8 0 的壁面104傾斜而成。 由於藉由使燃料泵殼的壁面1 0 4傾斜而形成導向面8 4， 因此無需添加構件即可使燃料更順利地流動。 由於燃料可以順利地流動，因此可減低燃料通路8 2的 損失。 13 312ΧΡ/發明說明書(補件)/94-01/93129206 1323762 又，燃料通路8 2内導向面8 4的傾斜角 0 2、燃料泵排 出口 8 1的中心和燃料出口側壁面1 0 5的距離L 2以及燃料 出口側上部壁面1 0 6的高度Η 2可以考慮燃料通路8 2的損 失而任意地設定。 在燃料通路82内，亦可以將安全閥88設置在燃料出口 側。由於可以將安全閥88配置在燃料出口 83側，因此可 以一邊使燃料流動順利，一邊提高設計的自由度。 因而，可以不損失燃料流動地改變燃料出口 83的位置。 圖6是沿圖5中箭頭6方向的視圖，圖中顯示了形成在 燃料泵殼8 0上的燃料通路8 2以及將燃料供給通路8 5設置 在燃料通路8 2的燃料出口 8 3上的情況。 1 0 3是向燃料泵4 3供應電源的電源供給連接器。 而且，可以任意設定燃料通路82的寬度W2。 圖7係本發明第三實施形態之燃料泵殼的剖視圖，圖中 顯示將吸濾器9 2 (參考圖4 )不能除去的細微異物過濾的 過濾器1 0 7設置在燃料通路8 2内。 藉由在燃料通路8 2内設置了過濾器1 0 7，可以一邊保持 燃料順利流動一邊除去細微異物。 圖8係本發明第四實施形態之燃料泵殼的剖視圖，顯示 導向面8 4是在燃料通路8 2内傾斜的導向板1 0 8的情況。 以傾斜的導向板1 0 8作為將從燃料泵排出口 8 1排出的 燃料順利地導向燃料出口 83而設置之包含在燃料通路82 内的導向面84。 藉由以傾斜的導向板1 0 8作為包含在燃料通路8 2内的 14 312ΧΡ/發明說明書(補件)/94-01/93129206 1323762 導向面8 4，因此，無需依賴燃料泵殼之壁面1 Ο 4的形狀， 就可以使燃料順利地朝向燃料出口 83地使燃料流動偏向。 此外，本發明的燃料泵殼適用於内藏有燃料箱内的二輪 機車，也可以適用於三輪車，也適用於一般的車輕。 (產業上之可利用性） 本發明的燃料泵殼適用於二輪機車。 【圖式簡單說明】 圖1係具備本發明第一實施形態之燃料泵殼之二輪機車 的側視圖。 圖2係圖1中2部分的放大剖視圖，係裝配了本發明第 一實施形態之燃料泵殼之燃料箱的剖視圖。 圖3係沿圖2中箭頭3方向的視圖。 圖4係本發明第一實施形態之裝配燃料泵的燃料泵殼的 作用圖。 圖5係本發明第二實施形態之燃料泵殼的剖視圖。 圖6係沿圖5中箭頭6方向的視圖。 圖7係本發明第三實施形態之燃料泵殼的剖視圖。 圖8係本發明第四實施形態之燃料泵殼的剖視圖。 圖9係說明習知技術基本結構的視圖。 【主要元件符號說明】 10 二輪機車 1 1 車體框架 11a 頂管 1 1 C 連接部 151323762 IX. Description of the Invention: [Technical Field] The present invention relates to a fuel collecting shell that is attached to a fuel pump body that is built in a fuel tank and that is used when the fuel pump body is mounted on a predetermined portion of the fuel tank. Structure. [Prior Art] A conventional fuel chestnut shell is easy to assemble and has a fuel passage and a filter body in a fuel passage (for example, refer to Patent Document 1). (Patent Document 1) Japanese Patent Laid-Open Publication No. Hei No. 1 1 - 2 0 0 9 7 (Fig. 1) Patent Document 1 is described based on the following drawings. Figure 9 is a view for explaining the basic structure of the prior art, in which it is shown that a fuel passage 220 is formed on the output side of the fuel discharge port 210, and the filter body 203 is disposed in the fuel passage 202. The fuel passage 20 2 is provided with a fuel pump casing 207 of a fuel tank built-in fuel pump of a fuel outlet 2 0 4 and a fuel discharge port 2 0 6 . The fuel discharged from the discharge pipe 209 of the fuel pump 208 passes through the filter body 203 provided in the fuel passage 2020 of the fuel pump casing 207, and passes through the fuel supply pipe 2 from the fuel outlet 224. 1 4 Output to the engine side. When the pressure in the fuel passage 202 exceeds the predetermined pressure, the pressure adjustment safety valve 205 opens, and the fuel in the fuel passage 208 flows from the fuel discharge port 260 to the fuel tank side. The fuel discharged from the discharge pipe 209 of the fuel pump 208 hits the side surface 2 1 2 of the fuel outlet side of the flange member 2 1 1 and changes direction, colliding with the wall surface 2 1 of the fuel outlet side of the flange member 2 1 1 3 and change direction again, enter the fuel 5 312XP / invention manual (supplement) /94-01/93129206 1323762 supply tube 2 1 4 . That is, the side surface 2 1 2 and the fuel outlet 2 1 3 on the fuel outlet side of the fuel edge member 2 1 1 discharged from the discharge pipe 2 0 9 of the fuel pump 206 are changed in flow direction, and enter the fuel supply pipe 2 I. 4, change the time. What is needed for such a flow is to make the fuel smoother and reduce the flow path loss of the fuel passage 202. SUMMARY OF THE INVENTION (Problem to be Solved by the Invention) An object of the present invention is to provide a fuel pump casing which can smoothly flow fuel in a fuel pump casing of a passage and improve the degree of freedom in position and direction. (Means for Solving the Problem) The invention of claim 1 is a fuel pump casing, and a container used on the fuel pump body and when the fuel pump body is mounted on the fuel tank contains the fuel pump discharge port The fuel passage passage is characterized in that the fuel passage includes a fuel outlet perpendicular to the upper discharge port, and includes a guide surface that can smoothly guide the fuel from the fuel pump row to the fuel outlet. The fuel passage includes a vertical port to the fuel pump discharge port, and further includes a fuel discharge port leading from the fuel pump discharge port to the fuel outlet. Since the fuel is smoothly guided from the discharge port to the fuel outlet surface, the fuel in the fuel outlet and the fuel pump discharge port can flow more smoothly. 312XP/Invention Manual (Supplement)/94-01/93丨29206 The material flows from the convex side wall surface to the two sides, and has a fuel fuel outlet which is attached to a predetermined position and is discharged to the fuel pump outlet of the gas turbine. In the case of smooth guided guidance, 6 1323762 can reduce the loss of fuel passages because the fuel can flow more smoothly. Further, since the guide surface for guiding toward the fuel outlet is provided, it is possible to change the position of the fuel outlet while maintaining the smooth flow of the fuel. The invention of claim 2 is characterized in that the guide surface is formed by inclining a wall surface of a fuel pump casing facing the fuel pump discharge port. By tilting the wall surface of the fuel pump casing, a guide surface which is inclined to smoothly guide the fuel discharged from the fuel pump discharge port to the fuel outlet is formed. Since the guide surface is formed by inclining the wall surface of the fuel pump casing, it is possible to smoothly flow the fuel of the fuel passage without preparing the addition member. The invention of claim 3 is characterized in that the guide surface is an inclined guide plate in the fuel passage. The inclined guide plate is provided on the guide surface of the fuel passage for smoothly guiding the fuel discharged from the fuel pump discharge port to the fuel outlet. Since the inclined guide plate is used as the guide surface provided to the fuel passage, it is possible to smoothly flow toward the fuel outlet by deflecting the fuel flow by the guide plate without depending on the shape of the fuel pump casing. The invention of claim 4 is characterized in that the safety valve that opens when the pressure in the fuel passage exceeds the predetermined pressure and returns the fuel to the fuel tank faces the fuel passage. Since the safety valve that returns the fuel to the fuel tank faces the fuel passage when the pressure exceeds the predetermined pressure, the fuel returning pipe and the safety valve mounting bracket and the like are not required to be added to the safety valve. Manual (supplement) /94-01 /93129206 1323762 pieces. Moreover, since the safety valve is integrated with the fuel pump casing, the rotational space of the fuel pump casing can be effectively made. (Effect of the Invention) In the invention of claim 1, the guide surface which can smoothly flow toward the fuel outlet has an advantage of fuel flow and reduction of fuel passage loss. In the invention of claim 2, since the guide surface is formed by inclining the fuel surface, there is an advantage that it is not necessary to prepare the addition of the fuel to flow more smoothly. In the invention of claim 3, since the guide plate is provided as the guide surface, there is an advantage that the fuel can be smoothly deflected toward the fuel outlet without relying on the fuel pump casing. In the invention of claim 4, since the safety valve that returns the fuel to the fuel tank is opened when the pressure is pressed, there is an addition to the safety valve that does not require another fuel return pipe to mount the bracket or the like. The advantages of the parts. [Embodiment] Fig. 1 is a side view of a fuel pump casing according to a first embodiment of the present invention. The figure is shown in the direction indicated by the arrow. The second engine car 10 mainly includes a body frame 11 and is mounted on the vehicle: a front fork 12 on the top tube 11a, a handle 14 connected to the front front fork 1 2 mounted on the front fork 12, a combined swing engine 15 movably mounted at the rear of the body frame 1 1 , and a combined swing engine 312XP/Invention Manual (Supplement)/94-01/93129206 The ground reduction limit guide fuel can be made smoother than the wall of the pump casing, so that the inclined shape, that is, the force exceeds the above-mentioned fuel and safety valve two-wheel surface. Feng frame 1 1 life 1 3, 8 1323762 rear wheel 16 on the upper hem 15 , rear suspension unit 1 7 at the rear end of the suspension swing engine 1 5 , storage compartment mounted on the upper rear part of the body frame 1 1 18. A seat 1 9 that is mounted on the storage compartment 18 and that can be opened and closed. The vehicle body frame 1 1 is a frame formed by joining the front frame 1 1 F formed by die-casting of the top pipe 1 1 a and the rear frame 1 1 R manufactured by die casting by the joint portion 1 1 C. The combined swing engine 15 is composed of an engine 2 1 and a belt converter stepless speed changer 2 2 with a centrifugal clutch. The engine 2 1 is a water-cooled 4-stroke engine that faces between the storage box 18 and the fuel tank 42 and is inclined substantially horizontally. Further, the second engine car 1 is covered with the vehicle body cover 30 with the vehicle body cover 30. The body cover 30 includes a front cover 31 that covers the front portion of the top tube 1 1 a , a rear cover 1 1 a that covers the rear portion of the front cover 3 1 and simultaneously covers the front cover of the driver's foot 3 2 ' a pedal (lower foot pedal) 3 3 carrying the driver's foot, a pair of left and right floor side covers 34 extending downward from the outer edge of the footrest 3 3 , and a lower edge of the bottom cover 3 4 A bottom cover 35, a lower cover cover 36 covering the front end of the lower end of the seat 19, a rear cover 37 covering the lower rear portion of the seat and the rear wheel 16 and a pair of left and right side covers 38. The two-turbine vehicle 10 has a main switch (ignition switch) 4 1 disposed in the leg cover 32, and a fuel tank 42 and a fuel pump built in the fuel tank 42 are disposed on the footboard 33. Below, a bracket (not shown) is disposed on the rear upper end portion of the body frame 11 while the radiator is disposed on the bracket with the reserve tank 4 4, the battery 45, and the control unit 46. In the figure, reference numeral 51 denotes a handle, 52 denotes a left brake lever, 53 denotes 312XP/invention specification (supplement)/94-01/93129206 1323762, an instrument panel, 5 4 denotes a rear view mirror, and 5 5 denotes a pair of left and right direction indicators. 5 6 F denotes the front handle cover, 5 6 R denotes the rear handle cover, 5 7 denotes the headlight, 5 8 denotes a horn provided in the front cover 31, and 59 denotes a front fender which rotates together with the front fork 12 6 1 denotes a pair of left and right engine hooks, 6 2 denotes an engine start pedal, 63 denotes an air cleaner disposed on the left side of the vehicle body, 64 denotes a carburetor, and 6 5 denotes a crankshaft 2 1 disposed on the engine 2 1 a right side of the engine cooling radiator, 6 6 indicates the engine exhaust pipe, 6 7 indicates the exhaust muffler installed on the right side of the car body, 7 1 indicates the main support frame, and 7 2 indicates the rear fender, 7 3 indicates the tail light, 74 indicates the rear direction indicator, 75 indicates the bracket, and He indicates the helmet. Fig. 2 is an enlarged cross-sectional view showing a portion of Fig. 1 showing a fuel tank in which a fuel pump casing according to a first embodiment of the present invention is assembled. The fuel pump casing is a container attached to the body of the fuel pump 43 and used when the fuel pump 43 body is mounted on a predetermined portion in the fuel tank 4 2, and is provided with a discharge port 81 from the fuel pump 43 In the fuel pump casing 80 of the fuel passage 8 2 of the engine 21 (refer to FIG. 1), the fuel passage 8 2 includes a fuel outlet 83 that is perpendicular to the discharge port 8 1 of the fuel pump, and further includes a row from the fuel pump 43 The fuel discharged from the outlet 81 is smoothly guided to the inclined guide surface 84 of the fuel outlet 83. Next, the fuel supply path 85 is disposed in the fuel outlet 83, and the fuel pipe 87 is attached to the outlet of the fuel supply path 85 toward the engine side. 8 6 on. A fuel discharge port 8 9 connected to the relief valve 88 is disposed in the fuel passage 8 2 . 9 1 is a suction port for sucking fuel from the fuel tank 4 2 , 9 2 is a suction filter, 9 3 10 312XP/invention specification (supplement)/94-01/93129206 1323762 is a fuel shortage detecting unit, and 94 is a fuel shortage detecting device. Float. The installation relationship of the fuel pump casing 80 will be described below. The fuel tank 42 is mounted on the front frame 1 1 F, and the container mounting bracket 96 in which the fuel pump casing 80 is fitted is placed above the fuel tank 42. In order to fix the fuel pump casing 80 to the fuel tank 4 2, the screw 98 is previously attached to the container mounting bracket 96 through the auxiliary bracket 97. Thereafter, the fuel pump body 43, the fuel pump casing 80 to which the safety valve 8 is attached, and the sealing member 9 9 are fitted into the container mounting bracket 9 6, and the fixing member 1 0 1 is placed on the fuel pump casing 80, and finally The fuel pump casing 80 is fixed by the nut 102. The safety valve 88, which is opened when the internal pressure of the fuel passage exceeds a predetermined pressure, and is returned to the fuel tank 42 is disposed facing the fuel passage 82. By providing the safety valve 8 8 facing the fuel passage 8 2, it is not necessary to provide an additional component related to the safety valve such as a fuel return pipe and a safety valve mounting bracket. Further, since the safety valve 88 is integrated with the fuel pump casing 80, the rotational space of the fuel tank casing 80 which is limited in many cases can be effectively utilized. Fig. 3 is a view in the direction of arrow 3 in Fig. 2, showing a fuel passage 82 formed in the fuel pump casing 80 and a case where the fuel supply passage 85 is provided in the discharge port 83 of the fuel passage 82. 1 0 3 is a power supply connector that supplies power to the fuel pump 4 3 (refer to FIG. 2). By arranging the fuel passage 82 so as to move along the arrow a or b around the point P, it is possible to change the position of the fuel outlet 83 11 312XP / invention specification (supplement) / 94-01 /93129206 1323762 while maintaining the smooth flow of the fuel. . That is, by moving the fuel passage 8 2 including the inclined guide surface 84 (refer to Fig. 2), the position of the fuel outlet 8 3 can be changed without impairing the smooth flow of the fuel. Fig. 4 is a view showing the operation of the fuel pump casing of the fuel pump according to the first embodiment of the present invention, and the fuel system of the fuel pump 43 is introduced from the suction port 91 through the suction port 92 as indicated by the arrow c from the fuel discharge port 8 1 . As shown by the arrow d, the fuel passage 82 enters the fuel passage 82, and the fuel can flow more smoothly to the fuel outlet 83 by the action of the guide surface 84 guided from the discharge port 81 toward the fuel outlet 83. Then, once the fuel pressure in the fuel passage 82 rises above the prescribed pressure, the fuel flows through the relief valve 88 as indicated by the arrow e. The fuel discharged from the fuel pump discharge port 81 is guided by the guide surface 84 disposed obliquely to the fuel passage 82, gradually changing direction and flowing into the fuel supply pipe 85. Since the fuel gradually changes direction by the guide surface 84, flows smoothly, and enters the fuel supply pipe 85, the flow disturbance is small. As a result, the loss of the fuel passage 82 can be reduced. Moreover, since the safety valve 88 is integrated with the fuel pump casing 80, the additional components associated with the safety valve are not required, and the rotational space of the fuel tank casing 80 which is limited in many cases can be reduced. Further, the fuel discharged from the fuel pump discharge port 81 is smoothly formed toward the inclined guide surface 84 of the fuel outlet 83 by tilting the wall surface 104 of the fuel pump casing 80. 12 312XP/Invention Manual (Supplement)/94-01/93129206 1323762 Since the guide surface 84 is formed by tilting the wall surface 104 of the fuel pump casing 80, the fuel passage 8 2 can be made without adding a member. The fuel flows more smoothly. Further, the inclination angle 0 1 of the guide surface 84 in the fuel passage 82, the distance L1 between the center of the fuel pump discharge port 81 and the fuel outlet side wall surface 105, and the height Η1 of the fuel outlet side upper wall surface 106 are considered fuel The loss of the passage 8 2 is arbitrarily set. Referring back to Fig. 3, the widths W1, W2 of the fuel passages 8 2 can be arbitrarily set in the same manner. By providing the fuel passage 82 having the guide surface 84, the fuel can be smoothly flowed in the case where the fuel outlet 83 is different from the direction of the fuel pump discharge port 81. If the fuel can flow more smoothly, since the loss of the fuel passage 82 can be reduced, the power required for the fuel pump 43 is small, and the miniaturization of the fuel pump 43 can be achieved. Since the fuel pump 4 3 disposed in the fuel tank 4 2 (see Fig. 2) can be downsized, the capacity of the fuel tank 42 can be improved. Fig. 5 is a cross-sectional view showing a fuel pump casing according to a second embodiment of the present invention, showing a guide surface 84 which is formed by inclining a wall surface 104 of a fuel pump casing 80 facing the fuel pump discharge port 8 1 . Since the guide surface 84 is formed by inclining the wall surface 104 of the fuel pump casing, the fuel can flow more smoothly without adding a member. Since the fuel can flow smoothly, the loss of the fuel passage 82 can be reduced. 13 312 ΧΡ / invention manual (supplement) /94-01/93129206 1323762 again, the inclination angle 0 of the guide surface 84 in the fuel passage 8 2, the center of the fuel pump discharge port 8 1 and the fuel outlet side wall surface 1 0 5 The distance L2 and the height Η 2 of the fuel outlet side upper wall surface 106 are arbitrarily set in consideration of the loss of the fuel passage 8.2. In the fuel passage 82, the relief valve 88 may also be disposed on the fuel outlet side. Since the safety valve 88 can be disposed on the fuel outlet 83 side, the degree of freedom in design can be improved while the fuel flow is smooth. Thus, the position of the fuel outlet 83 can be changed without losing fuel flow. Figure 6 is a view in the direction of arrow 6 in Figure 5, showing the fuel passage 8 2 formed on the fuel pump casing 80 and the fuel supply passage 85 being disposed on the fuel outlet 8 3 of the fuel passage 82. Happening. 1 0 3 is a power supply connector that supplies power to the fuel pump 43. Further, the width W2 of the fuel passage 82 can be arbitrarily set. Fig. 7 is a cross-sectional view showing a fuel pump casing according to a third embodiment of the present invention, in which a filter 10 7 for filtering fine foreign matter which cannot be removed by a suction filter 92 (refer to Fig. 4) is disposed in the fuel passage 8 2 . By providing the filter 10, 7 in the fuel passage 8 2, it is possible to remove fine foreign matter while keeping the fuel flowing smoothly. Fig. 8 is a cross-sectional view showing a fuel pump casing according to a fourth embodiment of the present invention, showing a case where the guide surface 84 is a guide plate 108 which is inclined in the fuel passage 82. The guide surface 84 included in the fuel passage 82 is provided by the inclined guide plate 108 as a fuel which is smoothly guided to the fuel outlet 83 from the fuel pump discharge port 81. By using the inclined guide plate 108 as the 14 312 ΧΡ / invention specification (supplement) / 94-01/93129206 1323762 guide surface 8 4 contained in the fuel passage 8 2, therefore, it is not necessary to rely on the wall surface of the fuel pump casing 1 The shape of the crucible 4 allows the fuel to be smoothly deflected toward the fuel outlet 83. Further, the fuel pump casing of the present invention is suitable for a two-wheeled locomotive in which a fuel tank is housed, and is also applicable to a tricycle, and is also suitable for general vehicle light. (Industrial Applicability) The fuel pump casing of the present invention is suitable for a two-wheeled vehicle. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of a two-wheeled motor vehicle including a fuel pump casing according to a first embodiment of the present invention. Fig. 2 is an enlarged cross-sectional view showing a portion of Fig. 1 showing a fuel tank of a fuel pump casing according to a first embodiment of the present invention. Figure 3 is a view in the direction of arrow 3 in Figure 2. Fig. 4 is a view showing the operation of a fuel pump casing of a fuel pump according to a first embodiment of the present invention. Figure 5 is a cross-sectional view showing a fuel pump casing according to a second embodiment of the present invention. Figure 6 is a view in the direction of arrow 6 in Figure 5. Figure 7 is a cross-sectional view showing a fuel pump casing according to a third embodiment of the present invention. Figure 8 is a cross-sectional view showing a fuel pump casing according to a fourth embodiment of the present invention. Fig. 9 is a view showing the basic structure of a conventional technique. [Main component symbol description] 10 Two-wheeled vehicle 1 1 Body frame 11a Pipe jacking 1 1 C Connecting part 15
312XP/發明說明書(補件)/94-01 /93129206 1323762 1 1 F 前框架 1 1 R 後框架 12 前叉 13 前輪 14 把手 15 組合擺動引擎 16 後輪 17 後緩衝單元 18 置物箱 19 椅座 21 引擎 2 1 a 曲柄軸 22 無段變速機 30 車體蓋 31 前蓋 32 腿遮罩 3 3 腳踏板（低床式腳踏板） 34 底板側蓋 35 底蓋 36 椅座下部蓋 37 後蓋 38 側蓋 4 1 總開關（點火開關） 42 燃料箱 312XP/發明說明書(補件)/94-01 /93129206 1323762 43 燃料泵 44 散熱器用備用油箱 45 蓄電池 46 控制單元 5 1 手柄 5 2 左煞車桿 5 3 儀錶板 5 4' 後照鏡 5 5 方向指示燈 5 6 F 前側手柄蓋 5 6 R 後側手柄蓋 5 7 頭燈 5 8 制口八 5 9 前擋泥板 61 引擎吊鉤 6 2 引擎啟動踏板 6 3 空氣遽、清器 6 4 化油器 6 5 引擎冷卻用散熱器 66 引擎用排氣管 6 7 排氣用消音器 7 1 主支撐架 72 後擋泥板 73 尾燈 17312XP/Invention Manual (supplement)/94-01 /93129206 1323762 1 1 F Front frame 1 1 R Rear frame 12 Front fork 13 Front wheel 14 Handle 15 Combination swing engine 16 Rear wheel 17 Rear buffer unit 18 Storage box 19 Seat 21 Engine 2 1 a Crankshaft 22 Stepless gearbox 30 Body cover 31 Front cover 32 Leg cover 3 3 Foot pedal (low bed foot pedal) 34 Base side cover 35 Bottom cover 36 Seat lower cover 37 Back cover 38 Side cover 4 1 Main switch (ignition switch) 42 Fuel tank 312XP / invention manual (supplement) /94-01 /93129206 1323762 43 Fuel pump 44 spare tank for radiator 45 Battery 46 Control unit 5 1 Handle 5 2 Left 煞5 3 Dashboard 5 4' Rear view mirror 5 5 Direction indicator 5 6 F Front handle cover 5 6 R Rear handle cover 5 7 Headlight 5 8 Port eight 5 9 Front fender 61 Engine hook 6 2 Engine Start pedal 6 3 Air 遽, cleaner 6 4 Carburetor 6 5 Engine cooling radiator 66 Engine exhaust pipe 6 7 Exhaust muffler 7 1 Main support frame 72 Rear fender 73 Tail light 17
312XP/發明說明書(補件)/94-0丨/93129206 1323762 7 4 後方向指示燈 7 5 托架 8 0 燃料泵殼 8 1 燃料泵排出口 8 2 燃料通路 8 3 燃料出口 84 導向面 8 5 燃料供給通路 8 7 燃料管 88 安全閥 8 9 燃料排出口 9 1 燃料吸入口 9 2 吸濾器 9 3 燃料缺少檢測單元 94 燃料缺少檢測用浮子 96 容器安裝支架 9 7 輔助支架 98 螺釘 99 密封構件 1 01 固定構件 1 02 螺帽 1 03 電源供給連接器 1 04 導向面壁面 1 05 燃料出口側壁面 18312XP/Invention Manual (supplement)/94-0丨/93129206 1323762 7 4 Rear direction indicator 7 5 Bracket 8 0 Fuel pump housing 8 1 Fuel pump discharge port 8 2 Fuel passage 8 3 Fuel outlet 84 Guide surface 8 5 Fuel supply passage 8 7 Fuel pipe 88 Safety valve 8 9 Fuel discharge port 9 1 Fuel suction port 9 2 Suction filter 9 3 Fuel shortage detecting unit 94 Fuel missing detecting float 96 Container mounting bracket 9 7 Auxiliary bracket 98 Screw 99 Sealing member 1 01 fixing member 1 02 nut 1 03 power supply connector 1 04 guide surface wall 1 05 fuel outlet side wall surface 18
312XP/發明說明書(補件)/94-01/93129206 1323762 1 06 燃料出口側上部壁面 10 7 過濾器 1 08 傾斜型導向板 20 1 燃料排出口 2 0 2 燃料通路 2 0 3 過濾器本體 2 0 4 燃料出口 205 壓力調整用安全閥 2 0 6 燃料排出口 2 0 7 燃料泵殼 2 0 8 燃料泵 2 0 9 排出管 2 11 凸緣構件 2 12 燃料出口側的側面 2 13 燃料出口側的壁面 2 14 燃料供給管 He 表示頭盈 19312XP/Invention Manual (Supplement)/94-01/93129206 1323762 1 06 Fuel outlet side upper wall surface 10 7 Filter 1 08 Tilt type guide plate 20 1 Fuel discharge port 2 0 2 Fuel passage 2 0 3 Filter body 2 0 4 Fuel outlet 205 Pressure adjustment safety valve 2 0 6 Fuel discharge port 2 0 7 Fuel pump casing 2 0 8 Fuel pump 2 0 9 Discharge pipe 2 11 Flange member 2 12 Fuel outlet side side 2 13 Fuel outlet side wall 2 14 Fuel supply pipe He means head surplus 19
312XP/發明說明書(補件)/94-01/93129206312XP / invention manual (supplement) /94-01/93129206