200837274 九、發明說明： 【發明所屬之技術領域】 本心明係有關將燃料槽内之燃料予以壓送至車輛 .内燃機關的喷射器（injector)等的燃料供給裝置，更具 ^係有關於改善對於該燃料槽内之安裝性及耐振性的構造 【先前技術】 f安定SIT捉包Ϊ於燃料中的塵埃等夾雜物，且將該燃料 …例如安裝於引擊的燃料喷射裝置之喷射哭 ;、自、吸入過濾态（suctlon filter)而先將燃料槽内的 出。之後’對於包含有通過該吸人過濾、 構成燃料泵的馬達部所產生的電刷(hr—、整流= 軸utator)等之磨耗粉的夾雜物，配設於燃料泵之 ::卩、燃料流路看來為燃料泵的次段之意)的高麗過濾器： :M紙製的過濾元件予以捕捉的方式乃廣為習知。 位詈然Γ ’因吸入過遽器係處於燃料供給中所謂最上流的 般係位於忒燃料槽之最底部俾 哭详φΑ“ 仃仏⑽另方面，為了將從高壓過滹 二=觸不停滞地送出至例如凸緣所具備的送出管「 W過濾益配置於凸緣，亦即燃料槽之上面的正下方 限交多。亦即’只要在將燃料供給裝置收納於具有有 域而2尺寸的燃料槽内的情況下，則横跨該高度尺寸全 有的情形也是可充分預想到的（例如，參照專利文獻 319492 5 200837274 'i)。 [專利文獻！]日本國特許第3256973號公 -欄第9行至第4頁左欄第49行、第旧） ^ ' 【發明内容】 (發明所欲解決之課題） 從該專利文獻i中的第i圖可知，藉由使用容積較大 的燃料泵，而使該燃料栗與高壓過遽器罩合，亦即，將燃 广2泵收备於略呈C字型環狀的高壓過遽器（於專利文獻，1 、二過濾器殼體’以下稱殼體)之内周。因此，燃料槽之上 面開口與殼體間的空隙（cIe_ce)變得極小。從而， 置收納於燃料槽内時，有上面開口之邊緣部* 之間產生接觸之虞，而有因該接觸所致之受損而導致、 從殼體洩漏燃料的疑慮。 、冷夂 另一方面，就專利文獻】之本質而言，可切 藉由將殼體分為第1殼體⑷舆第㉔= (分為絕緣性與導電性，而可於 ^ 蓋發散靜電的效果。然而，其 涵盍攄過元件之高度尺寸的下殼體，甚至立t為而要用以 燃料㈣蓋與下殼體之間的溶接部必須==防止 到將會產生高應力的根基桝刀預想 的強度多為㈣_之母材強度更低接部 輛行駛時之強烈振動等，則仍有 -靶加車 洩漏之虞。 择冲破知而引起燃料 本發明雖為為了解決如上所述之課題而研發者，但在 319492 6 200837274 ，解、決該課題前，該發明之申請人的其他發明者們已達成了 it泵Sit型化：亦即’藉由將構成該燃料泵的輛部構 ▲以及在二十、類的Μ磁鐵配置於内周的第1筒狀輛部； 鐵對應的位置設於前述第1筒_部的外 周々乐2同狀輕部，則即使是需要強大磁化力的 南的稀土類磁鐵，★ j担在山 " 車父 性…該磁鐵與前述輕部而成的磁 冓成自由度’而達成前述磁鐵之磁化f置的小型 化’進而達成燃料泵尤其在軸方向的短詳 〔W02004/073145得知）。因此，太蓼昍夕口 （子、、，田了由 )口此本發明之目的為將具有熔接 °且不會從該㈣部更不會從收容過濾、元件的過滅哭機私 引起燃㈣漏的燃料供給裝置活用於經短小化後的、^ 栗。 · 、、丁 (解決課題的手段） =明之燃料供給裝置係具有：凸緣，安裝於燃料槽 =開口，燃料泵’將前述燃料槽之燃料予以送出；以 ^壓過濾、器’用以將從該燃料果所送出的燃料進行過 ί; = :設有議過濾、器的過濾、器機殼係由上側機殼 凸綾：:Τ之上下兩層所形成’且前述上側機殼係與前述 .、、’ V、形，並且前述燃料泵係於前述下側機殼之下方 ^目對於前述高壓㈣器配設為大致同軸上的方式 衮0 (發明的效果） 本發㈣如以上所說明地，可以提供易於組裝在燃料 曰且不會引起燃料洩漏並提升信賴性的燃料供給裝置。 319492 7 200837274 # 【實施方式】 第1實施形態 第1圖為本發明第丨實施形態的燃料供給裝置之外觀 斜視圖，第2圖為第1圖的分解斜視圖。此外，第3圖為 第1圖的燃料泵之剖面圖。 如第1圖所示，燃料供給裝置101係構成為：為絕緣 性樹脂的凸緣1，藉由一體成形而具備：π包有作為後述 广的尚壓過濾器的元件的上侧機殼la、以及送出管線lb;為 '絕，性樹脂之下側機殼2,藉由與上侧機殼la熱板熔接而 固定；泵固定件3，與該下側機殼2以例如卡合（sn邛 的方式扣合，且將後述的燃料泵予以保持；以及吸入過濾 器（_ion filter)4，由該泵固定件3之開口部***，而嵌 裝於燃料泵之吸入口。又，lc雖亦為一體成型於凸緣工且 供給電力至燃料泵的連接器’但從該連接器le所延設的引 次之”、員示係爷略。此外，藉由上側機殼1 a (:而形成過濾波器機殼5。 根據第2圖說明該燃料供給裝置1〇1的組裝順序。藉 由在上下具有鍔部且以導電性樹脂所成形的内冑如的外 。例如將以於紙漿（pulp)添加聚醋（p〇lyes㈣等樹脂纖維 的材料所形成的-枚片材安裝於在内筒&的轴線周圍成 f為菊花狀的構件6b而構成元件6,且將其插人上側機殼 ^。該上侧機殼U之軸線方向的尺寸係與元件6之全長相 、。亦即’在***時，若使内冑6a之上侧的突環部抵接於 則機殼U的頂部（亦可稱為凸緣i之底面），則上側機殼 319492 8 200837274 成為间一平面的狀態"另一方面，成為該等 •一；面之承接面的下側機殼2之各者的上端面亦成為同 的方式使^’^上殼1a與下側機殼2藉由熱板溶接 同時，因Γ插 如前所述地形成過濾器機殼5的 也會被固定。 "才熔接，故兀件6 f 子構6固疋時’若將例如未圖示的導電性樹脂之端 2,則藉I:::下·殼2的方式事先安裝於下侧機殼 地9大面與端子構件溶接，且從該端子構件拉 :線，即可將於元件6所產生的靜電予以發散。又，雖 二：而使内筒6a之下方成為閉塞’但因下側機殼2之内 ^料^ ’上側機殼U之㈣與元件6間存有縫隙，而使 :"、〜入7L件6。此外，在内筒6a之上側鳄部的下方附 ^ ’不僅設有複數個連通内筒6a之内外的連通孔，且内筒 亦連通至送出管線1 b。從而，經由元件6可以相魏 料泵之迗出官至送出管線lb為止的燃料流路。 ，於泵固定件3的底面設有開口部&並且形成有與燃 料泵7之底部形狀（參照第3圖）一致的凹部，藉此若將辦 料泵7***泵固定件3 ’則燃料果7會被保持於該果固定 件上内之預定位置。此外，因燃料泵7之吸入口…係位 於前述的開口部3a，故藉由將吸入過濾器4之連接部4a 連接於5亥吸入口 21a ’則未圖示之燃料槽内的燃料即經由 及入過遽^§ 4而被吸入燃料系7。 319492 9 200837274200837274 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a fuel supply device for injecting a fuel in a fuel tank to a vehicle, an injector such as an internal combustion engine, and the like. Structure for improving the mountability and vibration resistance in the fuel tank [Prior Art] f Stabilization SIT captures impurities such as dust contained in the fuel, and the fuel is, for example, attached to the jet of the fuel injection device ;, from the suction state (suctlon filter) and first out of the fuel tank. Then, the inclusions of the abrasion powder such as the brush (hr—rectifier=shaft utator) generated by the motor unit that is filtered by the suction pump are disposed in the fuel pump: 卩, fuel The Gory filter that appears to be the secondary section of the fuel pump): The manner in which the filter elements of the M paper are captured is widely known. The position is Γ Γ 'Because the inhaled sputum is in the fuel supply, the so-called highest flow is located at the bottom of the 忒 fuel tank. 俾 Α 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 The ground pipe is sent to, for example, a delivery pipe provided in the flange. The filter is disposed on the flange, that is, the upper portion of the fuel tank is directly limited. That is, as long as the fuel supply device is housed in a domain having a size of 2 In the case of the fuel tank, it is also conceivable that the height is the same (for example, refer to Patent Document 3194249 5 200837274 'i). [Patent Literature!] Japanese Patent No. 3256973 - Column 9 to page 4, left column, line 49, and old) ^ ' [Explanation] (Problems to be solved by the invention) From the i-th image in the patent document i, it is known that by using a larger volume a fuel pump that covers the fuel pump and the high pressure filter, that is, the fuel pump 2 is housed in a slightly C-shaped annular high pressure filter (in the patent document, 1 and 2 filter housings) The inner circumference of the body 'hereinafter referred to as the casing.' Therefore, the upper opening of the fuel tank The gap (cIe_ce) between the casings is extremely small. Therefore, when it is housed in the fuel tank, there is contact between the edge portions* of the upper opening, and damage due to the contact is caused. On the other hand, in the nature of the patent document, the casing can be divided into the first casing (4) 舆 24 = (divided into insulation and electrical conductivity, However, the effect of dissipating static electricity can be dissipated in the cover. However, the lower case that covers the height of the component, even if it is used for the fuel (4), the joint between the cover and the lower case must be == prevent The expected strength of the root boring tool that will produce high stress is (4) _ the strength of the base metal is lower than that of the strong vibration of the vehicle, and there is still a 靶 靶 靶 靶 靶 靶 靶 靶 靶Although the present invention has been developed to solve the above problems, other inventors of the applicants of the present invention have reached the It pump Sit type before 319492 6 200837274 solves this problem: By constituting the vehicle part of the fuel pump and in the twenty The neodymium magnet is disposed on the inner circumference of the first tubular portion; the position corresponding to the iron is provided in the outer circumference of the first cylinder portion, and the rare earth magnet of the south is required to have a strong magnetizing force. , ★ j is in the mountain " car father's character... The magnet is free from the magnetic enthalpy of the light part, and the magnetization f of the magnet is miniaturized', and the fuel pump is especially short in the axial direction. W02004/073145 is known. Therefore, the purpose of the present invention is to have a weld and not to remove the filter and components from the (four) portion. The fuel supply device that burns (4) leaks is used for the short-lived fuel supply device. · ·, D (the means to solve the problem) = Ming fuel supply device has: flange, installed in the fuel tank = Opening, the fuel pump 'sends the fuel of the aforementioned fuel tank; the pressure filter is used to pass the fuel sent from the fuel fruit; :; filter with filter, device casing It is formed by the upper casing:: the upper and lower layers of the raft are formed 'and The upper casing is the same as the above-mentioned, V-shaped, and the fuel pump is disposed below the lower casing, and the high-pressure (four) device is disposed substantially coaxially. (0 (effect of the invention) According to the present invention, as described above, it is possible to provide a fuel supply device which is easy to assemble in a fuel cartridge and which does not cause fuel leakage and improves reliability. [Embodiment] FIG. 1 is a perspective view showing the appearance of a fuel supply device according to a second embodiment of the present invention, and FIG. 2 is an exploded perspective view of the first embodiment. Further, Fig. 3 is a cross-sectional view of the fuel pump of Fig. 1. As shown in Fig. 1, the fuel supply device 101 is configured such that the flange 1 of the insulating resin is integrally molded, and includes an upper casing la that contains π as an element of a pressure filter that will be described later. And the delivery line lb; the 'lower, resin lower side casing 2 is fixed by welding with the upper casing la hot plate; the pump fixing member 3 is engaged with the lower casing 2, for example ( The sn pump is engaged and held by a fuel pump to be described later, and a suction filter 4 is inserted into the opening of the pump holder 3 to be fitted into the suction port of the fuel pump. It is also a connector that is integrally formed in the flange and supplies electric power to the fuel pump, but the extension from the connector le, and the member shows the system. In addition, the upper casing 1 a ( The filter case 5 is formed. The assembly procedure of the fuel supply device 1〇1 will be described with reference to Fig. 2. The inner portion of the fuel supply device 1〇1 having the crotch portion on the upper and lower sides and being formed of a conductive resin, for example, a sheet formed by adding a material such as a resin fiber such as p〇lyes (tetra) to a pulp (pulp) is attached thereto. The member 6 is formed by a member 6b having a f-daisy-like shape around the axis of the inner cylinder & and is inserted into the upper casing 2. The dimension of the upper casing U in the axial direction is the same as the entire length of the element 6. That is, when inserting, when the collar portion on the upper side of the inner bore 6a abuts against the top of the casing U (also referred to as the bottom surface of the flange i), the upper casing 319492 8 200837274 becomes The state of a plane " on the other hand, becomes the same; the upper end faces of the lower casings 2 of the receiving faces of the faces also become the same way to make the upper casing 1a and the lower casing 2 At the same time, when the hot plate is melted, the filter case 5 is also fixed by the cutting. As described above, the welding is performed, so that when the element 6 f is fixed, it will be, for example, not shown. The end 2 of the conductive resin is first attached to the lower surface of the lower casing by the I::: lower shell 2, and the terminal member is melted, and the wire is pulled from the terminal member. The static electricity generated by 6 is diverged. Further, although the inner cylinder 6a is occluded below, the inner casing 6a is closed, but the inner casing 2 of the lower casing 2 is the upper casing U and the component 6 There is a gap, and: ", ~ into the 7L piece 6. In addition, the lower side of the inner side of the inner tube 6a is attached to the ''not only a plurality of communicating holes communicating with the inner and outer tubes 6a, and the inner tube is also provided It is connected to the delivery line 1 b. Thus, the fuel flow path from the pump to the delivery line lb can be discharged via the element 6. The opening of the pump holder 3 is provided with an opening & The concave shape of the bottom shape of the pump 7 (refer to Fig. 3), whereby if the feed pump 7 is inserted into the pump holder 3', the fuel fruit 7 is held at a predetermined position in the fruit holder. Since the suction port of the fuel pump 7 is located in the above-described opening portion 3a, the fuel in the fuel tank (not shown) is connected and passed through the connection portion 4a of the suction filter 4 to the 5H suction port 21a'.遽^§ 4 is sucked into the fuel system 7. 319492 9 200837274
I 於下側機殼2設有煥姐η 管8與送出管15a的甘^： 入^ ^ ’燃料果7經由連接 -定件3 Η萚士丰人人衣，係與前述的下側機殼2與泵固 疋件3間错由卡合而導致的扣人 — •料供給裝置101，亦gl7〜、。 進仃。猎此，完成燃 , ’、p元成從吸入過濾器4至送出管複J b 為止的燃料流路。藉由將該取料供 ib 燃料槽之上面開口部予 、°、 01仗未圖不的 1而閉塞的同時，藉由燃料帝； 上面開口部因凸緣 料加壓，經由連接於、、，的驅動而使燃料槽内之燃 Γ給至燃料噴射裝二二1b之未圖示的燃料管線而供 接著’根據第3圖說明Μ μ a、+、， 如m同#一 别述的燃料粟7及其驅動。 /弟圖所示，習知燃料系 所構成。並中，馬達部10與泵部20 面中盘電押12二、、σΡ 10，係在辆部(yoke)u之内周 隔财距離的位置，配置有形成 =:的磁鐵13,而在電樞12之外周與輕部u 一起形 管）卿=°，又’ Μ11係由STKM(顧構造用碳鋼鋼 成且;1弟1筒狀輛部lla與第2筒狀輛部m所構 t亍厂 =獅…第1筒狀輛部1 一 土至抵接於第2筒狀軛部Ub之凸部llc為止 、、^筒狀輛部llb係藉由將其兩端部於車由⑽a即4之 15U向進订背曲加工’而將以下零件亦即軸承固定件 入口豉體21以及出口殼體22予以一體化。又，在以 ==⑽yacetal)為主成分的絕緣性樹脂所形成的軸承固 Γ7 係收納有：止回閥16;將軸14 μ軸撐的軸承 ，、包性的電刷1 8 ;將該電刷18推壓至整流子Ua的 319492 10 200837274 線圈彈簧19;以及經由連接& 至電刷18用的引線18a等/ (多’，?、罘1圖）將電流供給 關於泵部20，n ‘ 納有軸制動件23 H、，以糾日形成的人Π殼體21收 彳千23，並设有丽述之吸入口 21a。s + 出口殼體22亦以榭浐报士、 另一方面， 燃料送出至電樞12 :的t有將:::】4升壓後的 以軸撐的軸承25。此外，以樹月匕2亚收納有將軸Μ予 個荦片溝的曰成^且於外周形成有複數 茱片溝的茱輪(lmpe】ler)26之中 係嵌合有剖面形成為D京 予形狀的孔， 部14a。又1 子形狀且為軸14之端部的D切面 H由^輪26之複數鳄片溝、以及入 體21和出口殼體22之 24。 ]凹屢21b、22b而形成流路 接著，針對燃料系7的動作進行說明。若從未圖示的 電池經由連接頭^、引線18a、電刷18、整流子仏而供 給電流至電樞12，藉由習知的直流電動機原理，電樞^ 係以軸14作為旋轉軸而與葉輪26一起旋轉。隨著該旋轉， 燃料槽内的燃料在吸入過濾器4被去除夾雜物後從吸入口 21a導入，且在流路24内被加壓後，通過送出口 而進 入馬達部1G内的空間。該加壓後的燃料係在於馬達部ι〇 内通過電樞12與磁鐵13間而流動時將電樞12予以冷卻， 且使止回閥16開啟而從送出管15a送出。該送出後的加壓 燃料係被導入至元件6，且在此將通過吸入過濾器4或者 δ有龟刷18等之磨耗粉的夾雜物予以捕捉後，被供給至燃 料噴射裝置的噴射器。以上即為本發明之燃料供給裝置之 11 319492 200837274 概要及構成。 雖未詳述，但因此燃料泵7係特別極力抑制在軸方向 的長度，故如第1圖所示，即使將元件6與燃料泵7於上 下進行所謂的系列排列，與以往之燃料供給裝置相比其全 長也毫不遜色。因此，過濾器機殼5之縮小化，詳而言之 係使其外徑尺寸與泵固定件3相等或為其以下，且將^此 之軸心配設為幾乎於同軸上。從而，不須將凸緣1之外徑 變大（不變更），即可使該凸緣1與過濾器機殼5之外徑尺 寸的間隔變大。此乃意味著不須將燃料槽之上面開口^進 仃必要以上的擴張，而可充分確保此上面開口部與過濾器 機殼5之間的空隙。藉此，在進行燃料供給裝置對於 燃，槽之組裝時，即可防止因上面開口部之邊緣與過濾器 機殼5間的接觸所致的過濾器機殼5之受損及從該受損部 產生的燃料洩漏。 、 此外，因過濾器機殼5係藉由上侧機殼la與下側機殼 I: 2間的熔接所形成，故當然完全沒有因該熔接而從固定部 產生的燃料洩漏、或因洩漏所致的燃壓降低。另外，於本 貫施形態中，藉由使加壓燃料在通過元件6時所產生的靜 電經介内筒6a而發散，而可於表面積比較大的上側機殼 la使用較低價的絕緣性樹脂，並且藉由與凸緣1 一體成 形，而將前述以熔接形成的固定部配設於元件6之下方。 亦即，由於將固定部遠離根基部俾使應力產生大幅降低， 因此不會引起因施加振動所致之從固定部而發生的燃料洩 漏’而可提供便宜的燃料供給裝置。 319492 12 200837274 另外，在過濾器機殼5之 機殼la之下端面、内筒6a 7…)中’藉由使上侧 及作為該等下端面及突起面之承：：：¾部的突起面、以 的上端面各自為同一平面 又έ、τ側機殼2之各者 接，而隨著過濾、器機殼5之幵/ 所謂的熱板溶 行，故亦可期待其製作費用的降低1件6之固定同時進 雖未包含有Α 了户組λ丨 低。又，於本實施形態， 有為了在燃料供給中將其 、用的遷力調節器，此乃因該者並力：持-而使 置（亦即為構成燃料供給裴置 ϋ、燃科供給裝 設於送出管線lb與噴射哭之門例如，採用將其配 时之間的所謂燃料槽外，並從該處 =以__料槽的方式亦不在言下。 【圖式簡單說明】 斜視^。圖為本^明罘1實施形態的燃料供給裝置之外觀 第2圖為第1圖的分解斜視圖。 第3圖為第1圖的燃料栗之剖面圖。 【主要元件符號說明】 lb 2 3 4 5 6a 凸緣 送出管線 下侧機殼 泵固定件 吸入過濾器 過濾器機殼 内筒 la lc 2a 3a 4a 6 6b 上側機殼 連接器 燃料吸入口 開口部 連接部 元件（高壓過濾器） 構件 319492 13 200837274 7 燃料泵 8 連接管 10 馬達部 11 軛部 11a 第1筒狀輛部 lib 第2筒狀輛部 11c 凸部 12 電樞 12a 整流子 13 磁鐵 14 轴 15 轴承固定件 15a 送出管 16 止回閥 17 軸承 18 電刷 18a 引線 19 線圈彈簧 20 泵部 21 入口殼體 21a 吸入口 21b、 22b 凹溝 22 出口殼體 22a 送出口 23 軸制動件 24 流路 25 轴承 26 葉輪 101 燃料供給裝置 14 319492I is provided in the lower casing 2 with the Huanjie η tube 8 and the delivery tube 15a. The fuel fruit 7 is connected to the stator 3 via the connection-fixing member 3, and the lower side machine described above. The buckle between the shell 2 and the pumping jaw 3 is caused by the engagement of the material supply device 101, also gl7~. Advance. Hunting this, complete the fuel, ', p element into the fuel flow path from the suction filter 4 to the delivery tube complex J b . By closing the upper opening of the ib fuel tank to the upper opening of the ib fuel tank, and not closing the first, the fuel is installed by the fuel; the upper opening is pressurized by the flange material, and is connected to Driving, the fuel in the fuel tank is supplied to the fuel line (not shown) of the fuel injection device 22b, and then, according to FIG. 3, a μ a, +, such as m and # Fuel millet 7 and its drive. As shown in the figure, the conventional fuel system is composed. In the middle, the motor unit 10 and the pump unit 20 are in the middle of the disk, and the yoke 10 is placed at the position of the inside of the yoke u, and the magnet 13 is formed. The outer circumference of the armature 12 is combined with the light part u.) ===, and the 'Μ11 series is made of STKM (the carbon steel is used for the construction of the structure; the 1st and 1st cylindrical part 11a and the second cylindrical part m)构 亍 = = lion... The first tubular portion 1 is abutted until the convex portion 11c of the second tubular yoke portion Ub, and the tubular portion 11b is attached to both ends of the vehicle The following components, that is, the bearing fixture inlet body 21 and the outlet casing 22, are integrated by (10) a, that is, 15 U of the order of 5, and the insulating resin having the main component of == (10) yacetal) is integrated. The formed bearing retainer 7 is housed with: a check valve 16; a bearing that supports the shaft 14 μ, and a bag-shaped brush 18; the brush 18 is pushed to the commutator Ua 319492 10 200837274 coil spring 19; and through the connection & to the brush 18 for the lead 18a, etc. / (multiple ', ?, 罘 1 map) to supply current to the pump portion 20, n 'with the shaft brake 23 H, to form a correction Person Π shell 21 closed One thousand 23, and a suction mouth said Li 21a. The s + outlet casing 22 is also a rifle, and on the other hand, the fuel is sent to the armature 12: t has a bearing 25 that is boosted by:::4. In addition, a tree-shaped 匕 2 sub-arranged has a 将 ^ ^ 且 且 且 且 且 且 且 且 且 且 且 且 lm lm lm lm lm lm lm lm lm lm lm lm lm lm lm lm lm lm lm lm lm lm lm Beijing-shaped hole, part 14a. Further, the D-cut surface H of the sub-shape and the end portion of the shaft 14 is composed of a plurality of crocodile grooves of the wheel 26, and 24 of the inlet 21 and the outlet casing 22. The concave passages 21b and 22b form a flow path. Next, the operation of the fuel system 7 will be described. When a battery (not shown) is supplied with current to the armature 12 via the connector ^, the lead 18a, the brush 18, and the commutator ,, the armature 14 uses the shaft 14 as a rotating shaft by the conventional DC motor principle. Rotating with the impeller 26. With this rotation, the fuel in the fuel tank is introduced into the suction filter 4 from the suction port 21a, and is pressurized in the flow path 24, and then enters the space in the motor portion 1G through the delivery port. This pressurized fuel cools the armature 12 when it flows between the armature 12 and the magnet 13 in the motor portion ι, and opens the check valve 16 to be sent out from the delivery pipe 15a. The pressurized fuel after the delivery is introduced into the element 6, and is captured by the suction filter 4 or the inclusions of the abrasion powder such as the turtle brush 18, and then supplied to the injector of the fuel injection device. The above is the outline and configuration of the fuel supply device of the present invention 11 319492 200837274. Although not described in detail, the fuel pump 7 particularly suppresses the length in the axial direction. Therefore, as shown in Fig. 1, even if the element 6 and the fuel pump 7 are vertically arranged in a so-called series arrangement, the conventional fuel supply device is used. Compared with its full length is not inferior. Therefore, the filter casing 5 is shrunk, in particular, such that its outer diameter is equal to or smaller than the pump holder 3, and the axis of the filter is arranged to be almost coaxial. Therefore, the interval between the flange 1 and the outer diameter of the filter casing 5 can be made larger without increasing the outer diameter of the flange 1 (without changing). This means that the opening above the fuel tank does not have to be expanded more than necessary, and the gap between the upper opening and the filter casing 5 can be sufficiently ensured. Thereby, when the fuel supply device is assembled for the fuel and the tank, the damage of the filter casing 5 due to the contact between the edge of the upper opening portion and the filter casing 5 can be prevented and the damage can be prevented. Part of the fuel leak. Further, since the filter case 5 is formed by welding between the upper case 1a and the lower case I: 2, there is of course no fuel leakage or leakage due to the welding from the fixed portion. The resulting fuel pressure is reduced. Further, in the present embodiment, the static electricity generated when the pressurized fuel passes through the element 6 is diverged by the inner tube 6a, so that the upper case la having a relatively large surface area can be used for lower-priced insulation. The resin is disposed integrally with the flange 1 so that the aforementioned fixing portion formed by welding is disposed below the element 6. That is, since the stress is greatly reduced by moving the fixing portion away from the root portion, the fuel leakage device from the fixing portion due to the application of vibration is not caused, and an inexpensive fuel supply device can be provided. 319492 12 200837274 In addition, in the lower end surface of the casing la of the filter casing 5, the inner cylinder 6a 7...) 'by the upper side and as the lower end surface and the projection surface::: 3⁄4 protrusion The upper surface of the surface and the upper surface are respectively connected to the same plane, and the τ side casing 2 is connected, and as the filter, the casing 5, the so-called hot plate dissolves, it is also expected to be costly. The reduction of one piece of 6 is fixed at the same time, although it does not include the Α group λ丨 low. Further, in the present embodiment, there is an accommodating force adjuster for use in the fuel supply, and this is because the other is the same: the fuel supply 裴, the fuel supply is provided. It is installed in the delivery line lb and the spray crying door, for example, by using a so-called fuel tank between the timings, and from the place where the __ trough is also not mentioned. [Simplified illustration] Strabismus Fig. 2 is an exploded perspective view of the fuel supply device of the embodiment of the present invention. Fig. 3 is a cross-sectional view of the fuel pump of Fig. 1. Fig. 1 2 3 4 5 6a Flange delivery line Lower side Case pump holder Suction filter Filter case Inner tube la lc 2a 3a 4a 6 6b Upper side case connector Fuel suction port opening connection part (high pressure filter) Member 319492 13 200837274 7 Fuel pump 8 Connecting pipe 10 Motor portion 11 Yoke portion 11a First tubular portion lib Second cylindrical portion 11c Projection portion 12 Armature 12a Commutator 13 Magnet 14 Shaft 15 Bearing fixing member 15a Feeding pipe 16 check valve 17 bearing 18 brush 18a 19 coil spring 21 the inlet portion 20 of the pump housing inlet port 21a 21b, 22b of the housing grooves 22a delivery port 22 outlet 23 passage 24 shaft brake member 25 bearing fuel supply apparatus 26 of the impeller 101 14 319 492