200526868 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 燃料果殼的結構。 【先前技術】 習知的燃料泵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 )曰本專利特開平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2 0 2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 200526868 供給管2 1 4。 也就是，從燃料泵2 0 8之排出管2 0 9排出的燃料係由凸 緣構件2 1 1的燃料出口側的側面2 1 2和燃料出口側的壁面 2 1 3而改變流動方向，並進入燃料供給管2 1 4，改變方向兩 次。對於這種流動，所需要的是能夠使燃料更順利地流動， 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，它可以使具有燃料 通路的燃料栗殼内的燃料流動更順利’而且提向燃料出口 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，其係附著 在燃料泵本體上且在將燃料泵本體安裝在燃料箱規定位置 上時使用的容器，内藏有從上述燃料泵排出口朝向燃機的 燃料通路者，其特徵在於上述燃料通路包括與上述燃料泵 排出口垂直的燃料出口 ，且包括可將從燃料泵排出口排出 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的燃料出 口 ，而且還包括可將從燃料泵排出口排出的燃料順利地導 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的導向 面，因此，在燃料出口和燃料泵排出口方向不同的情況下， 燃料可以更順利地流動。 312XP/發明說明書(補件)/94-01 /93129206 6 200526868 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 由使面對燃料果排出口之燃料系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 312XP/發明說明書(補件)/94-01/93129206 200526868 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。 (發明效杲） 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 面〇 g框架1 1 裔1 3、與 以上下擺 1 5上的 8 200526868 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 3 7、左右一對側蓋3 8。 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3 3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5 1表示手柄，5 2表示左煞車桿，5 3表示 312XP/發明說明書(補件)/94-0 ] /93129206 200526868 儀錄板、5 4表示後照鏡，5 5表示左右一對方向指示燈 表示前側手柄蓋，5 6 R表示後側手柄蓋，5 7表示頭燈 表示設置在前蓋3 1内的°刺17八，5 9表示與前叉1 2 —起 的前擋泥板，6 1表示左右一對引擎吊鉤，6 2表示引擎 踏板，6 3表示設置在車體左側的空氣濾、清器，6 4表示 器，6 5表示設置在引擎2 1的曲柄軸2 1 a右端的引擎 用散熱器，6 6表示引擎用排氣管，6 7表示設置在車體 的排氣用消音器，7 1表示主支撐架，7 2表示後擋泥相 表示尾燈，74表示後方向指示燈，75表示托架，He 頭盔。 圖2是圖1的2部放大剖視圖，顯示裝配本發明第 施形態之燃料泵殼的燃料箱的剖視圖。 燃料聚殼是附屬在燃料果4 3本體上且在將燃料果 體安裝在燃料箱4 2内規定部位上時使用的容器，在内 從燃料泵4 3的排出口 8 1通向引擎2 1 (參考圖1 )之 通路8 2的燃料泵殼8 0内，燃料通路8 2包括與燃料泵 出口 8 1垂直的燃料出口 8 3，還包括使從燃料泵4 3之 口 8 1排出的燃料，順利地導向燃料出口 8 3的傾斜導 84 ° 接著，將燃料供應路8 5設置在燃料出口 8 3内，將 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 内〇 9 1是從燃料箱4 2吸入燃料的吸入口，9 2是吸濾器 3 12XP/發明說明書(補件)/94-01 /93129206 ，56F ，58 轉動 啟動 4匕油 冷卻 右側 L，73 表示 一實 43本 藏有 燃料 之排 排出 向面 燃料 〇 路82 ，93 10 200526868 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80固定在燃料箱42上，透過輔助支架 9 7，預先將螺釘9 8安裝在容器安裝支架9 6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 ◦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4 2内的安全閥8 8係設置面向燃料通路8 2。 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8 8與燃料泵殼8 0 —體化，因此可有效 地活用限制多之燃料泵殼8 0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8 0内的燃料通路8 2以及將燃料供應通路8 5設置在燃料 通路8 2的排出口 8 3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 200526868 的位置。 也就是藉由移動包括傾斜導向面84(參考圖2) 通路8 2，可以不損害燃料順利流動地改變燃料出口 位置。 圖4係本發明第一實施形態之裝配燃料泵的燃料 作用圖，通過吸濾器9 2從吸入口 9 1如箭頭c所示 入燃料泵4 3的燃料係從燃料排出口 8 1如箭頭d所 進入燃料通路8 2内，藉由從排出口 81朝向燃料出 進行導向的導向面8 4的作用，燃料可以更順利地流 出口 8 3。然後，一旦燃料通路8 2内的燃料壓力上i 定壓力之上，此燃料便藉由安全閥88而如箭頭e所 流動。 從燃料泵排出口 8 1排出的燃料被傾斜於燃料通鲜 置的導向面8 4導向，緩緩地改變方向並流入燃料供 8 5内。 由於燃料藉由導向面84緩緩地改變方向，順利地 並進入燃料供給管85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 要與安全閥有關的添加零件，可以減少限制多之燃 8◦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 料出口 8 3之傾斜導向面8 4係藉由使燃料栗殼8 0 1 0 4傾斜而形成。 312XP/發明說明書(補件)/94-01/93129206 的燃料 83的 泵殼的 般地進 示般地 口 83 向燃料 十到規 示般地 卜82配 —應管 流動， 此不需 料泵殼 I向燃 丨壁面 12 200526868 由於藉由使燃料泵殼8 0的壁面1 0 4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（9 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8 4的燃料通路8 2，在燃料出口 8 3 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43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1 0 4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 200526868 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 出口侧上部壁面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，亦可以將安全闊88設置在燃料出口 側。由於可以將安全閥8 8配置在燃料出口 8 3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 8 3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8 2的寬度W 2。 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 8 4。 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 200526868 導向面8 4，因此，無需依賴燃料泵殼之壁面1 0 4的形狀， 就可以使燃料順利地朝向燃料出口 8 3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，也適用於一般的車輛。 (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 11 車體框架 1 la 頂管 1 1C 連接部 15200526868 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a fuel nut shell attached to a fuel pump body built in a fuel tank, and used when the fuel pump body is mounted on a prescribed portion of the fuel tank. Structure. [Prior Art] A conventional fuel pump casing is easy to assemble and has a fuel passage and a filter body in the fuel passage (for example, refer to Patent Document 1). (Patent Document 1) Japanese Patent Application Laid-Open No. 1 1-2 0 0 97 4 (Fig. 1) will be described with reference to the following drawings. FIG. 9 is a view illustrating a basic structure of the prior art, in which a fuel passage 2 0 2 is formed on an output side of a fuel discharge port 2 0 1, and a filter body 2 0 3 is provided in the fuel passage 2 0 2. The fuel passage 2 0 2 has a fuel pump housing 2 07 of a fuel pump with a fuel tank built-in fuel tank 204 and a fuel discharge port 2 06 on the output side. The fuel discharged from the fuel pipe 2 0 9 of the fuel pump 2 0 9 passes through the filter body 2 0 3 provided in the fuel passage 2 0 2 of the fuel pump casing 2 0 7 and from the fuel outlet 2 0 4 through the fuel supply pipe 2 1 4 Output to the engine. When the pressure in the fuel passage 202 exceeds a predetermined pressure, the pressure adjustment safety valve 205 is opened, and the fuel in the fuel passage 202 flows from the fuel discharge port 2 06 to the fuel tank side. The fuel discharged from the fuel pipe 2 0 8 discharge pipe 2 0 9 hits the fuel outlet side surface 2 1 2 of the flange member 2 1 1 and changes direction, and hits the flange member 2 1 1 on the fuel outlet side wall surface 2 1 3 and change direction again, enter fuel 5 312XP / Invention Manual (Supplement) / 94-01 / 93129206 200526868 Supply pipe 2 1 4. That is, the fuel discharged from the discharge pipe 2 0 9 of the fuel pump 2 08 is changed in the flow direction by the fuel outlet side surface 2 1 2 and the fuel outlet side wall surface 2 1 3 of the flange member 2 1 1 and Enter the fuel supply pipe 2 1 4 and change direction twice. For this flow, what is needed is to enable the fuel to flow more smoothly and to reduce the flow path loss of the fuel passage 202. [Summary of the Invention] (Problems to be Solved by the Invention) The object of the present invention is to provide a fuel pump casing, which can make the fuel flow in the fuel chestnut casing with a fuel passage flow more smoothly, and the freedom to raise the position and direction of the fuel outlet degree. (Means for Solving the Problem) The invention of claim 1 is a fuel pump casing, which is a container attached to the fuel pump body and used when the fuel pump body is installed at a predetermined position of the fuel tank. The fuel pump discharge port facing the fuel passage of the gas turbine is characterized in that the fuel passage includes a fuel outlet perpendicular to the fuel pump discharge port, and includes a guide for smoothly guiding fuel discharged from the fuel pump discharge port to the fuel outlet. surface. The fuel passage includes a fuel outlet perpendicular to the fuel pump outlet, and also includes a fuel outlet guide surface that can smoothly guide the fuel discharged from the fuel pump outlet to the fuel outlet. Since the guide surface smoothly guides the fuel from the discharge port to the fuel outlet, the fuel can flow more smoothly when the fuel outlet and the fuel pump discharge port have different directions. 312XP / Invention Manual (Supplement) / 94-01 / 93129206 6 200526868 Since the fuel can flow more smoothly, the loss of fuel passage can be reduced. Furthermore, since the guide surface is provided to guide the fuel outlet, the position of the fuel outlet can be changed while maintaining the smooth flow of the fuel. The invention of claim 2 is characterized in that the guide surface is formed by inclining the wall surface of the fuel system casing facing the fuel fruit discharge port. The wall surface of the fuel pump casing is inclined to form a guide surface inclined to smoothly guide the fuel discharged from the fuel pump discharge port to the fuel outlet. Since the wall surface of the fuel pump casing is inclined to form the guide surface, it is possible to make the fuel in the fuel passage flow more smoothly without preparing additional members. The invention of claim 3 is characterized in that the guide surface is an inclined guide plate in the fuel passage. An inclined guide plate is used as a guide surface provided in the fuel passage in order to smoothly guide the fuel discharged from the fuel pump outlet to the fuel outlet. Since the inclined guide plate is used as the guide surface provided in the fuel passage, the fuel flow can be deflected by the guide plate without depending on the shape of the fuel pump casing, and can smoothly flow to the fuel outlet. The invention of claim 4 is characterized in that a safety valve that opens when the pressure in the fuel passage exceeds a predetermined pressure to return fuel to the fuel tank faces the fuel passage. Since the valve is opened when the pressure exceeds a predetermined pressure, the safety valve for returning fuel to the fuel tank faces the fuel passage. Therefore, no additional fuel-related piping, safety valve mounting bracket, etc. related to the safety valve can be added. 312XP / Invention Manual (Supplement) / 94-01 / 93129206 200526868 pieces. In addition, since the safety valve is integrated with the fuel pump casing, it is possible to effectively make a large space for the rotation of the fuel pump casing. (Invention effect) In the invention according to item 1 of the scope of the patent application, since the guide surface ′ which allows the fuel to smoothly flow toward the fuel outlet is included, it has the advantage that the fuel flows smoothly and the fuel path loss is reduced. In the invention of claim 2 of the patent application, since the fuel surface is inclined to form the guide surface, there is an advantage that it is not necessary to prepare a fuel to flow more smoothly. In the invention claimed in item 3 of the patent application, since a guide plate is provided as a 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 in the fourth scope of the patent application, since the safety valve for returning fuel to the fuel tank is opened when the pressure is fixed, it has a safety valve-related addition that does not require other fuel return piping to install a bracket. Advantages of parts. [Embodiment] FIG. 1 is a side view of a fuel pump casing provided with a first embodiment of the present invention. The drawing is a two-wheeled locomotive 10 as seen from a direction indicated by a symbol arrow. The two-wheeled locomotive 10 mainly includes a body frame 11 and is mounted on the vehicle. The front fork 12 on the top pipe 11a, the front mounted on the front fork 12. The front fork 1 2 is connected to the handle 1 4. The combination swing engine 1 is movably installed at the rear of the body frame 1 1 5. The combination swing engine is installed 312XP / Invention Manual (Supplement) / 94-01 / 93129206 To reduce the limit guide fuel, you can follow the wall of the pump casing, and the inclined shape, that is, the force exceeds the fuel and safety valve two-wheeled locomotive surface. Frame 1 1 1 3 3 8 above the hem 1 5 200526868 Rear wheel 1 6 Suspension combination swing engine 1 5 Rear buffer unit 1 at the rear end 7 Storage box 1 installed at the upper part of the rear part 1 8. A seat 19 is installed on the storage box 18 and can be opened and closed. The vehicle body frame 11 is a frame formed by connecting the front part 1 1 a and the front frame 1 1 F made of die-casting and the rear frame 1 1 R made of die-casting by a connecting portion 1 1 C. The combination swing engine 15 is composed of an engine 21 and a belt-changer stepless speed changer 22 with a centrifugal clutch. Engine 2 1 is a water-cooled 4-stroke engine with a cylinder section facing between the storage tank 18 and fuel tank 4 2 and inclined approximately horizontally. In addition, the two-wheeled locomotive 10 covers the body frame 11 with a body cover 30. The body cover 30 includes a front cover 3 covering the front part of the top pipe 1 1 a, a leg cover 3 holding the top pipe 1 1 a and covering the rear part of the front cover 3 1 and simultaneously covering the front of the driver's feet 3 2, Foot pedals (low-bed pedals) that carry the driver's feet 3 3. A pair of left and right floor side covers 3 that extend downward from the outer edge of the foot pedals 3 3, cover the bottom edge of the floor side 3 4 Bottom cover 3 between 5, Cover lower part of the seat 1 9 Front lower cover 3 6, Cover back of the lower part of the seat 19 and above the rear wheel 16 6, Pair of left and right side covers 3 8 . This two-wheeled locomotive 1 0 is equipped with a main switch (ignition switch) 4 1 in the leg cover 3 2 and a fuel tank 4 2 and a fuel pump contained in the fuel tank 4 2 on the pedal 3 3 Underneath, a bracket (not shown) is set on the upper end of the rear portion of the vehicle body frame 11, and a spare fuel tank 4 for the radiator, a battery 45, and a control unit 46 are arranged on the bracket. In the figure, the component symbol 5 1 indicates the handle, 5 2 indicates the left brake lever, 5 3 indicates 312XP / Invention Manual (Supplements) / 94-0] / 93129206 200526868 instrument recording board, 5 4 indicates rearview mirror, 5 5 indicates left and right A pair of direction indicators indicate the front handle cover, 5 6 R indicates the rear handle cover, 5 7 indicates the headlight indicates the angle thorn 17 inside the front cover 31, and 5 9 indicates the front from the front fork 1 2 Fenders, 6 1 indicates a pair of left and right engine hooks, 6 2 indicates an engine pedal, 6 3 indicates an air filter and a cleaner provided on the left side of the vehicle body, 6 4 indicates a device, and 6 5 indicates a crank provided at the engine 2 1 The radiator for the engine at the right end of the shaft 2 1 a, 6 6 is the exhaust pipe for the engine, 6 7 is the exhaust muffler installed on the vehicle body, 7 1 is the main support frame, 7 2 is the rear fender phase, and the tail light. , 74 means rear direction indicator light, 75 means bracket, He helmet. Fig. 2 is an enlarged sectional view of two portions of Fig. 1 showing a sectional view of a fuel tank equipped with a fuel pump casing according to the embodiment of the present invention. The fuel hull is a container attached to the main body of the fuel fruit 4 3 and used when the fuel fruit body is installed in a predetermined position inside the fuel tank 4 2, and the fuel fuel tank 4 is internally led from the exhaust port 8 1 of the fuel pump 4 3 to the engine 2 1 (Refer to FIG. 1) In the fuel pump housing 80 of the passage 8 2, the fuel passage 8 2 includes a fuel outlet 8 3 perpendicular to the fuel pump outlet 8 1, and also includes fuel discharged from the port 81 of the fuel pump 43. , Smoothly guide the fuel outlet 8 3 to the inclined guide 84 °. Next, set the fuel supply path 8 5 in the fuel outlet 8 3, and install the pipe 87 to the engine side on the fuel supply path 8 5 at the outlet 8 6 and A fuel discharge port 8 9 connected to a safety valve 8 8 is provided in the fuel passage. 9 1 is a suction port for sucking fuel from a fuel tank 4 2, and 9 2 is a suction filter 3 12XP / Invention Manual (Supplement) / 94-01 / 93129206, 56F, 58 Rotate and start 4 dagger oil to cool right L, 73 means a solid 43 of the fuel-containing exhaust discharged to the surface fuel channel 0, 82, 93 10 200526868 is a fuel shortage detection unit, 94 is a float for fuel shortage detection. The installation relationship of the fuel pump housing 80 is described below. The fuel tank 4 2 is mounted on the front frame 1 1 F, and a container mounting bracket 9 6 in which the fuel pump casing 80 is fitted is provided on the fuel tank 4 2. In order to fix the fuel pump casing 80 to the fuel tank 42, screws 9 8 are mounted on the container mounting bracket 9 6 through the auxiliary bracket 9 7 in advance. After that, the fuel pump body 4 3, the fuel pump casing 8 with the safety valve 8 8 installed, 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 is fixed at 80 ° by a nut 102, and once the internal pressure of the fuel passage exceeds a predetermined pressure, the safety valve 8 8 is opened to return the fuel to the fuel tank 4 2 and faces the fuel passage 8 2. By disposing the safety valve 8 8 facing the fuel passage 82, it is not necessary to provide additional parts related to the safety valve such as a fuel return pipe and a safety valve mounting bracket. In addition, since the safety valve 88 and the fuel pump casing 80 are integrated into one body, the rotation space of the fuel pump casing 80, which has many restrictions, can be effectively used. Fig. 3 is a view taken in the direction of arrow 3 in Fig. 2 and shows a state where a fuel passage 82 formed in the fuel pump casing 80 and a fuel supply passage 85 are provided in a 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 moving along the arrow a or b around the point P, for example, the position of the fuel outlet 83 11 312XP / Invention Specification (Supplement) / 94-01 / 93129206 200526868 can be changed while maintaining the smooth flow of the fuel. . That is, by moving the passage 82 including the inclined guide surface 84 (refer to FIG. 2), the fuel outlet position can be changed without impairing the smooth flow of the fuel. FIG. 4 is a fuel action diagram of a fuel pump equipped with a first embodiment of the present invention. A fuel is fed from a suction port 9 1 through a suction filter 9 2 into a fuel pump 4 3 as shown by an arrow c, as shown by an arrow d. In the entered fuel passage 82, the fuel can flow out the outlet 83 more smoothly by the role of the guide surface 84 that guides the fuel outlet from the discharge port 81 toward the fuel outlet. Then, once the pressure of the fuel in the fuel passage 82 rises above a certain pressure, the fuel flows through the safety valve 88 as indicated by the arrow e. The fuel discharged from the fuel pump discharge port 8 1 is guided by the guide surface 8 4 inclined to the fuel passage, and gradually changes direction and flows into the fuel supply 8 5. Since the direction of the fuel is gradually changed by the guide surface 84, the fuel smoothly enters the fuel supply pipe 85, and there is little flow disturbance. As a result, the loss of the fuel passage 82 can be reduced. In addition, since the safety valve 88 is integrated with the fuel pump housing 80, additional parts related to the safety valve can reduce the rotation space that restricts the fuel consumption. Furthermore, the inclined guide surface 8 4 for smoothly discharging the fuel discharged from the fuel pump discharge port 81 toward the material discharge port 8 3 is formed by tilting the fuel pump casing 8 0 1 0 4. 312XP / Invention Manual (Supplement) / 94-01 / 93129206 Fuel 83 pump casing general inlet and outlet 83 to fuel ten to the specified ground 82 distribution-tube flow, no need for pump Shell I burns to wall surface 12 200526868 Because the guide surface 8 4 is formed by inclining the wall surface 104 of the fuel pump casing 80, the fuel in the fuel passage 82 can flow more smoothly without the need for additional components. . In addition, the inclination angle of the inner guide surface 8 4 of the fuel passage 8 2 (9 1. 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 upper wall surface 1 0 6 on the fuel outlet side can be considered. The loss of the fuel passage 82 can be arbitrarily set. Returning to Fig. 3, the widths W1 and W2 of the fuel passage 82 can also be arbitrarily set. By providing the fuel passage 82 having a guide surface 8 4 at the fuel outlet, 8 3 If the direction of the fuel pump discharge port 81 is different, the fuel can flow smoothly. If the fuel can flow more smoothly, the loss of the fuel passage 8 2 can be reduced. Therefore, the fuel pump 43 The required power is small, and the fuel pump 43 can be miniaturized. Since the fuel pump 4 3 disposed in the fuel tank 4 2 (see FIG. 2) can be miniaturized, the capacity of the fuel tank 42 can be increased. 5 is a cross-sectional view of a fuel pump casing according to a second embodiment of the present invention. The figure shows that the guide surface 8 4 is formed by inclining the wall surface 104 of the fuel pump casing 80 that faces the fuel pump discharge port 8 1. By tilting the wall surface of the fuel pump housing 1 0 4 The guide surface 8 4 is formed, so that fuel can flow more smoothly without adding components. Since the fuel can flow smoothly, the loss of the fuel passage 8 2 can be reduced. 13 312XP / Invention Specification (Supplement) / 94-01 / 93129206 200526868 In addition, the inclination angle of the inner guide surface 8 4 of the fuel passage 8 2 0, the distance L 2 between the center of the fuel pump discharge port 8 1 and the fuel outlet side wall surface 1 0 5 and the upper wall surface 1 0 6 of the fuel outlet side The height Η 2 can be arbitrarily set in consideration of the loss of the fuel passage 82. In the fuel passage 82, a safety valve 88 can also be provided on the fuel outlet side. Since the safety valve 8 8 can be arranged on the fuel outlet 8 3 side, It is possible to increase the freedom of design while making the fuel flow smooth. Therefore, the position of the fuel outlet 83 can be changed without losing the fuel flow. FIG. 6 is a view in the direction of the arrow 6 in FIG. The fuel passage 82 in the pump housing 80 and the fuel supply passage 85 in the fuel outlet 8 3 of the fuel passage 8 2 are provided. 1 0 3 is a power supply connection for supplying power to the fuel pump 4 3. In addition, the width W 2 of the fuel passage 82 can be arbitrarily set. Fig. 7 is a cross-sectional view of a fuel pump casing according to a third embodiment of the present invention. The figure shows the filtering of fine foreign matter that cannot be removed by the suction filter 9 2 (refer to Fig. 4). The filter 107 is installed in the fuel passage 82. By providing the filter 107 in the fuel passage 82, fine foreign matters can be removed while keeping the fuel flowing smoothly. Fig. 8 shows a fourth embodiment of the present invention. A sectional view of the fuel pump casing shows a case where the guide surface 84 is a guide plate 108 inclined in the fuel passage 82. An inclined guide plate 108 is provided as a guide surface 84 included in the fuel passage 82, and the fuel discharged from the fuel pump discharge port 81 is smoothly guided to the fuel outlet 83. By using the inclined guide plate 108 as the 14 312XP / invention specification (supply) / 94-01 / 93129206 200526868 guide surface 8 4 included in the fuel passage 82, there is no need to rely on the wall surface 1 of the fuel pump casing With a shape of 0, the fuel can be smoothly directed toward the fuel outlet 8 to deflect the fuel flow. In addition, the fuel pump casing of the present invention is applicable to a two-wheeled locomotive in which a fuel tank is built, it can also be applied to a three-wheeled locomotive, and it can also be applied to a general vehicle. (Industrial Applicability) The fuel pump casing of the present invention is suitable for a two-wheeled locomotive. [Brief description of the drawings] Fig. 1 is a side view of a two-wheeled locomotive provided with a fuel pump casing according to a first embodiment of the present invention. Fig. 2 is an enlarged sectional view of two parts in Fig. 1, and is a sectional view of a fuel tank equipped with a fuel pump casing according to a first embodiment of the present invention. FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2. Fig. 4 is an operation diagram of a fuel pump casing equipped with a fuel pump according to the first embodiment of the present invention. Fig. 5 is a sectional view of a fuel pump casing according to a second embodiment of the present invention. FIG. 6 is a view in the direction of arrow 6 in FIG. 5. Fig. 7 is a sectional view of a fuel pump casing according to a third embodiment of the present invention. Fig. 8 is a sectional view of a fuel pump casing according to a fourth embodiment of the present invention. FIG. 9 is a view illustrating a basic structure of a conventional technique. [Description of main component symbols] 10 Two-wheeled locomotive 11 Body frame 1 la Jack 1 1C Connection 15
312XP/發明說明書(補件)/94-01 /93129206 200526868 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 2 1 引 擎 21a 曲 柄 軸 22 無 段 變 速 機 30 車 體 蓋 3 1 前 蓋 32 腿 遮 罩 33 腳 踏 板 ( 低 床 式 腳 34 底 板 側 蓋 35 底 蓋 36 椅 座 下 部 蓋 37 後 蓋 38 側 蓋 41 總 開 關 ( 點 火 開 關 42 燃 料 箱 Ή 9 YP/潑昍說昍書f補件V94-01 /93129206 200526868 43 燃 料 泵 44 散 熱 器 用 備 用 油箱 45 蓄 電 池 46 控 制 單 元 51 手 柄 52 左 4 車 桿 53 儀 錶 板 54 後 日召 鏡 55 方 向 指 示 燈 56F 前 側 手 柄 蓋 56R 後 側 手 柄 蓋 57 頭 燈 58 喇 口八 59 前 擋 泥 板 6 1 引 擎 吊 鉤 62 引 擎 啟 動 踏 板 63 空 氣 濾 清 器 64 化 油 器 65 引 擎 冷 卻 用 散 熱器 66 引 擎 用 排 氣 管 67 排 氣 用 消 音 器 71 主 支 撐 架 72 後 擋 泥 板 73 尾 燈 312XP/發明說明書(補件)/94-01 /93129206312XP / Invention Manual (Supplement) / 94-01 / 93129206 200526868 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 Cushion Unit 18 Storage Box 19 Seat 2 1 Engine 21a Crankshaft 22 Continuously variable transmission 30 Body cover 3 1 Front cover 32 Leg cover 33 Foot pedal (Low-bed foot 34 Base plate side cover 35 Bottom cover 36 Seat lower cover 37 Rear cover 38 Side cover 41 Master switch (Ignition switch 42 Fuel tank 9 YP / Polishing booklet f Supplement V94-01 / 93129206 200526868 43 Fuel pump 44 Spare fuel tank for radiator 45 Battery 46 Control unit 51 Handle 52 Left 4 Stem 53 Dashboard 54 Day call mirror 55 Direction light 56F Front handle cover 56R Rear handle cover 57 Headlight 58 Lakou eight 59 Front fender 6 1 Engine hook 62 Engine start pedal 63 Air filter 64 Carburetor 65 Engine cooling radiator 66 Engine exhaust pipe 67 Exhaust muffler 71 Main support bracket 72 Rear fender 73 Rear light 312XP / Invention manual (Supplement) / 94-01 / 93129206
17 200526868 74 後 方 向 指 示 燈 75 托 架 80 燃 料 泵 殼 8 1 燃 料 泵 排 出 Ό 82 燃 料 通 路 83 燃 料 出 V 84 導 向 面 85 燃 料 供 給 通 路 87 燃 料 管 88 安 全 閥 89 燃 料 排 出 口 9 1 燃 料 吸 入 〇 92 吸 滤 器 93 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 97 輔 助 支 架 98 螺 釘 99 密 封 構 件 10 1 固 定 構 件 1 02 螺 帽 1 03 電 源 供 給 連 接 器 104 導 向 面 壁 面 105 燃 料 出 Ό 側 壁 面 312XP/發明說明書(補件)/94-01/9312920617 200526868 74 Rear direction indicator 75 Bracket 80 Fuel pump housing 8 1 Fuel pump discharge Ό 82 Fuel passage 83 Fuel outlet V 84 Guide surface 85 Fuel supply passage 87 Fuel pipe 88 Safety valve 89 Fuel discharge port 9 1 Fuel suction 〇92 Suction filter 93 Fuel shortage detection unit 94 Fuel shortage detection float 96 Container mounting bracket 97 Auxiliary bracket 98 Screw 99 Sealing member 10 1 Fixing member 1 02 Nut 1 03 Power supply connector 104 Guide surface wall surface 105 Fuel outlet side wall surface 312XP / Invention Specification (Supplement) / 94-01 / 93129206
18 200526868 10 6 燃 料 出 V 側 上 部 壁面 10 7 過 滤 器 1 08 傾 斜 型 導 向 板 20 1 燃 料 排 出 V 202 燃 料 通 路 203 過 遽 器 本 體 204 燃 料 出 V 205 壓 力 調 整 用 安 全 閥 206 燃 料 排 出 口 207 燃 料 泵 殼 208 燃 料 泵 209 排 出 管 2 11 凸 緣 構 件 2 12 燃 料 出 σ 側 的 側 面 2 13 燃 料 出 側 的 壁 面 2 1 4 燃 料 供 給 管 He 表 示 頭 盔18 200526868 10 6 Fuel outlet V-side upper wall surface 10 7 Filter 1 08 Inclined guide plate 20 1 Fuel outlet V 202 Fuel passage 203 Pass body 204 Fuel outlet V 205 Pressure regulating safety valve 206 Fuel outlet 207 Fuel pump Shell 208 Fuel pump 209 Discharge pipe 2 11 Flange member 2 12 Fuel side sigma side 2 13 Fuel side wall surface 2 1 4 Fuel supply pipe He indicates helmet
312XP/發明說明書(補件)/94-01/93129206 19312XP / Invention Manual (Supplement) / 94-01 / 93129206 19