TW550338B

TW550338B - Fuel supply device

Info

Publication number: TW550338B
Application number: TW091107073A
Authority: TW
Inventors: Michio Onuma
Original assignee: Keihin Corp
Priority date: 2001-04-09
Filing date: 2002-04-09
Publication date: 2003-09-01
Also published as: GB2378222B; HK1049871B; HK1049871A1; GB2378222A; GB0207988D0; JP2002303217A

Abstract

This invention is to provide a fuel supply device capable of restricting a fuel temperature rise in a fuel piping system, and effectively cooling a pump drive circuit without enlarging the body size of a fuel pump. On the fuel tank inner side 20C of a cover member 20, a support part 20D and a strainer storing recessed part 20E are formed, and a delivery passage 22 is formed through the cover member 20. The fuel pump E is installed on the support part 20D, and a strainer 21 connected to a pump suction passage 5 of the fuel pump E is stored in the strainer storing recessed part 20E. The pump drive circuit 23 to drive the fuel pump E is disposed to face the strainer storing recessed part 20E on the fuel tank outer side 20G of the cover member 20.

Description

550338 本發明係有關於燃料槽内收納配置具備泵部果部之馬達之燃料泵，藉燃料泵使燃料槽内之妙:驅動向發動機供給此昇壓之燃料之燃料供給裝置，農二=壓，燃料喷射t置之燃料供給裴置。、用來作為先前彳主術知燃料系中，藉粟驅動電路控制馬仃變化自燃料泵送出之燃料送出量之事宜。^ ^數，進 7 2 5 9 6 76 5虎公報揭露具備泵驅動電路之燃料泵笛 :。根據此例，於構成燃料栗之外殼内配置起=習知种用來驅動栗部之馬達，同時，於外殼内ί用之果，控制電路之電路箱。根據此例 ^收容馬達 ;:二X:出之燃料即沿外般内部向送出Ur 熱散放於：料Ϊ燃：開；6由二路箱，將控制電路；產生：此例中，在馬達外Κ Γ置=07號揭露第2習知例。於部，藉由泵部之作用 ’ ^ f用來驅動粟部之馬達 …於果部下游側之燃通”出。谷控制馬達部之驅動卜土女衣&制器箱，收燃料泵，控制n箱即為‘流經=H路。根據此例，一驅動時，燃料不會滲入控制哭箱内、4通路之燃料冷卻。又，此發明欲解決之問誦此習知燃料供給裝置之收容控制電路之電路箱裝在姆料= "、、泵内，故為了使流入外殼 \\312\2d-code\91-06\91107073.ptd 第4頁 550338 五、發明說明（2) 内而昇壓之概★ 性。因此，爲、二二電路箱内作用，要求電路箱之確實密封其製造作業福触確保密封性，需要特別密封構件，同時，料最好以平”，導致製品成本高。又，流入外殼内之_ G 了二以3送出通路流入，配置於外殼内之= 對電路箱之配，㈣其配置之選擇特別注意，從而燃料泵向送出通i度將增加限制。更且，電路箱僅藉自料噴射閥送出2出之燃料冷卻，有為自送出通路向燃之虞’在燃料供給：j:有在燃料配管内發生氣泡内有使燃料果太身夕，更且，電路箱配置於外殼配置於燃料；^内構造大型化之傾向，特別是將燃料泵加以留意内之槽内型燃料泵，有必要對燃料系之外壁，故控制11箱安|於燃料通路之無法充份冷卻控制器箱。裔相”ι枓通路之接觸面積，本發明燃料供給裝置倍 a 其目的在於提供一種可有刖=不當情形而完成者，路，自燃料果送出之燃料料果之泵驅動電 =構造變得密實，達成製二上昇，使燃料粟 μ ^ 成本/咸低之則述裝置。為達成前述目的，本菸具有開口部，燃料泵支持閉、二此=裝置係於燃料槽下、邻，以及將連接於機料泵之泵吸入支持燃料泵之 -— ___ 之收納濾清器550338 The present invention relates to a fuel pump in which a motor having a pump portion and a fruit portion is housed in a fuel tank, and the fuel tank is provided with a fuel pump to drive the fuel supply device that supplies the boosted fuel to the engine. The fuel injection unit is supplied with fuel. It is used to control the change of the amount of fuel delivered from the fuel pump by the horse drive circuit through the driver circuit in the previous known fuel system. ^ ^ Number, advance 7 2 5 9 6 76 5 Tiger Bulletin discloses fuel pump whistle with pump drive circuit :. According to this example, a conventional type of motor for driving the chestnut is arranged in the casing constituting the fuel pump, and at the same time, the circuit box of the control circuit is used in the casing. According to this example ^ Containing the motor ;: Two X: The fuel is sent out along the inside to the Ur. The heat is dissipated in: the material is ignited: On; 6 is the two-way box, the control circuit; produces: In this example, the Exposing the motor outside K Γ = 07 reveals the second known example. In the Ministry, by the action of the pump section '^ f is used to drive the motor of the millet section ... Nantong on the downstream side of the fruit section ". The valley control motor section drives the burial women's clothing & equipment box, collects the fuel pump The control of the n box is' flow through = H. According to this example, when driving, the fuel will not infiltrate into the control cry box, and the fuel in the 4-way is cooled. Also, this invention wants to solve the problem of this conventional fuel supply. The circuit box containing the control circuit of the device is installed in the pump, so in order to flow into the shell \\ 312 \ 2d-code \ 91-06 \ 91107073.ptd Page 4 550338 V. Description of the invention (2 ) The internal and step-up voltage is generally ★. Therefore, in order to function inside the two or two circuit boxes, it is required that the circuit boxes are properly sealed. The manufacturing operation of the circuit box is to ensure the tightness, and special sealing members are required. At the same time, the material is preferably flat. " As a result, the cost of the product is high. In addition, the _ G flowing into the casing is flowed in with 3 sending paths, and is arranged in the casing = the matching of the circuit box, and the choice of its configuration is particularly careful, so that the fuel pump will increase the limit of the opening of the fuel pump. In addition, the circuit box is cooled only by the fuel sent from the fuel injection valve, and there is a possibility that it will burn to the self-feeding path. In the fuel supply: j: there are bubbles in the fuel piping, and the fuel is too good. In addition, the circuit box is arranged in the outer shell and the fuel; the tendency of the internal structure to increase in size, especially the tank-type fuel pump that pays attention to the fuel pump, it is necessary to control the outer wall of the fuel system. The fuel path cannot adequately cool the controller box. The contact area of the “phase” channel, the fuel supply device of the present invention doubles the purpose of the present invention is to provide a pump that can be completed with 刖 = improper circumstances, the road, the fuel drive of the fuel material from the fuel fruit = the structure becomes Dense, achieve the second system rise, so that the fuel costs μ ^ cost / salt is described in the device. In order to achieve the aforementioned purpose, the cigarette has an opening, the fuel pump supports closed, two = the device is under the fuel tank, adjacent, and Suction the pump connected to the material pump into the support fuel pump-__ storage filter

^3l2\2d.c〇de\91-06\91107073.ptd 笙 f； TS* 550338^ 3l2 \ 2d.c〇de \ 91-06 \ 91107073.ptd Sheng f; TS * 550338

550338 五、發明說明（4) [實施例] 以下’藉圖1就本發明燃料 ♦ # ^丄明。Κ孫作成圚筒狀之给裝置之一貫施例加以說部u向下開口/另一/Κ2 ^ —端Κ4經由下方扣緊梯級口。u抵接配= = 上開於泵殼1下面抵接配置泵蓋:泵殼’ —端K4之下方端朝及罢2命向精由於此狀悲下，泵箱K之固定配置於下方如：二幼二v形成歛縫，將栗般1和菜蓋2 上方扣緊梯級部^丄之軸二』土。3係抵接配置於I箱!^之箱κ之另一端κ 5之上方，藉由於此狀態下，泵承保持蓋3固定配由ί保持蓋3向内形成歛縫，軸殼1與泵蓋2之抿接面之門y厂梯級部κ 1上。並且，於泵入通路5之下游相Λ 戈室4 ’穿設於$蓋2之泉吸於此泵室4内門口 ^於泵殼1之泵送出通路6之上游側路6之下游彳/' 、 3Α形成馬達室8，前述泵送出馬達室8=設於系殼1、系蓋2之送出通路7之上游側於車厄馬5 2 Γ-下元件構成。10係作成有1底圓筒狀之轉子夸，=精黏接劑等固定配置於轉子輛10之内周壁，同 ;轉：==通轉子輛10中心之旋轉軸12。並且，：銓由軸承8旋轉自如支承於自軸承保持苗3 向下之筒部3Β，旋轉軸12之下方、經由軸承C::3 .^ 展殼1 ° 13係捲繞電樞線圈14之定子，此定子13 -置於轉子軛10之内部，同時，固定配置於筒部3Β之外 \\3l2\2d-code\9l.〇6\9i 107073. ptd 第7頁 550338 五、發明說明（5) 部。由以上形成之馬達Μ收納配置於馬達室8内。栗部Ρ將葉輪1 5收納配置於泵室4内，旋轉軸1 2之下沪你此葉輪15相接。而與根據以上，泵箱κ之一端Κ4為泵殼1和泵蓋2閉塞，於果殼1與系蓋2間之泵室4内收納葉輪丨5，配置泵部ρ，另一方面’栗箱Κ之另一端Κ2為軸承保持蓋3閉塞，於軸承保持蓋 3、策箱Κ和泵殼1形成之馬達室8内收納配置馬達。並且’於馬達室8内收納配置過濾器F，其用來除去自馬達室8内部朝送出通路7流出之燃料中所含雜質。過濾器f 自底部FA向上形成圓筒狀筒部吓（此筒部叩由具有過渡性能之網等形成），於其上端形成嵌合筒部⑽，同時，貫通底部FA ’形成與泵殼丨之泵送出通路6相連之泵送出通路 FC。。。過濾器F係配置於馬達室8内之構件，具體而言，過濾器F之底部FA配置於泵殼i之上面1A上，同時，筒部⑽圍繞馬達Μ之轉子軛10之外周配置，嵌合筒部FB進一步嵌人聚箱】之内部K5之上部。根據以上，過據室A形成口於匕濾之疴部FD與泵箱K之内部K5之間，前述送出通路之上:轉=與此過濾室A内部相連、開口，下游則向外開口。作Γ =士又成曰之厂燃料㈣，若馬刺旋轉，栗部p起系計即經由果送出通路6及FC，供至過滤姦F之内部，此内部内悔本Μ所祕山d丄 A 1之燃抖精過濾器F之筒部FD除去雜質，排出到由過濾器F之外邱知石過濾室Α。並且，過滤以内過^泵内部0形成7之供至外部之例如裝有燃料嘴射燃料自送出通路7 貝町岡之燃料分配管。且，前述550338 V. Description of the invention (4) [Example] The following ′ will be described with reference to FIG. 1 on the fuel of the present invention. One example of a device that is made of a cylindrical tube is described below. The part u is opened downward / another / K2 ^-the end K4 fastens the step opening through the lower part. u abutment = = the upper part is opened under the pump casing 1 to abut the pump cover: the pump casing '-the lower end of the end K4 is facing towards the bottom and the 2nd is facing the direction. Due to this situation, the fixed configuration of the pump box K is located below : Eryou Erv forms a caulking joint, and fastens the chestnut-like 1 and the vegetable cover 2 above the stepped part ^ 丄的轴二 ’soil. The 3 series is abutted above the other end κ 5 of the box κ of the I box! In this state, the pump bearing holding cover 3 is fixed and the holding cover 3 is inwardly formed to form a caulking joint. The shaft housing 1 and the pump Cover the door of the y-joint y factory step section κ1. And, the downstream phase of the pumping passage 5 Δ Ge chamber 4 ′ passes through the spring in the cover 2 and sucks in the doorway of this pump chamber 4 ^ downstream of the upstream side path 6 of the pumping passage 6 of the pump casing 1 彳/ 'And 3A form a motor chamber 8, and the aforementioned pumping-out motor chamber 8 = is provided on the upstream side of the delivery path 7 of the system case 1 and the cover 2 to the vehicle horse 5 2 Γ-lower element. The 10 series is made of a cylindrical rotor with a bottom. The == fine adhesive is fixedly arranged on the inner peripheral wall of the rotor vehicle 10, the same; turn: == through the rotating shaft 12 through the center of the rotor vehicle 10. And: 铨 It is rotatably supported by the bearing 8 on the cylindrical portion 3B of the bearing holding seedling 3 downward, below the rotating shaft 12 and via the bearing C :: 3. ^ The casing 1 ° 13 is wound around the armature coil 14 Stator, this stator 13-is placed inside the rotor yoke 10, and at the same time, it is fixedly arranged outside the cylindrical part 3B \\ 3l2 \ 2d-code \ 9l.〇6 \ 9i 107073. ptd page 7 550338 5. Description of the invention ( 5) Ministry. The motor M formed as described above is accommodated and disposed in the motor chamber 8. The chestnut P stores the impeller 15 in the pump chamber 4, and the impeller 15 is connected below the rotating shaft 12. According to the above, one end K4 of the pump box κ is closed for the pump casing 1 and the pump cover 2. The impeller 5 is housed in the pump chamber 4 between the fruit casing 1 and the cover 2, and the pump part ρ is arranged. The other end K2 of the box K is closed by a bearing holding cover 3, and a motor is accommodated and arranged in a motor chamber 8 formed by the bearing holding cover 3, the policy box K, and the pump casing 1. A filter F is housed in the motor chamber 8 to remove impurities contained in the fuel flowing out of the motor chamber 8 toward the delivery path 7. The filter f forms a cylindrical cylindrical portion from the bottom FA upwards (this cylindrical portion 叩 is formed by a net or the like having a transition performance), and a fitting cylindrical portion 形成 is formed on the upper end thereof, and at the same time, it penetrates the bottom FA ′ to form a pump casing 丨The pumping-out path FC is connected to the pumping-out path 6. . . The filter F is a component disposed in the motor chamber 8. Specifically, the bottom FA of the filter F is disposed on the upper surface 1A of the pump casing i, and at the same time, the cylinder ⑽ is disposed around the outer periphery of the rotor yoke 10 of the motor M, and is fitted in The tube-closing part FB is further embedded in the upper part of the inner K5]. According to the above, the pass-through chamber A forms an opening between the ridge FD of the dagger filter and the interior K5 of the pump box K. Above the aforementioned delivery path: turn = connected to the interior of this filter chamber A, opening, and the downstream opening outwards. Let Γ = Shi Youcheng's factory fuel ㈣, if the spurs rotate, the chestnut p will be sent out through the fruit path 6 and FC to the inside of the filter F, which will repent the secret mountain dΜ The barrel FD of the flammable fine filter F of A 1 removes impurities and discharges it to the filter chamber A of the Qiu Zhishi outside the filter F. In addition, the inside of the filter passes through the inside of the pump to form 7 and the fuel is distributed to the outside, for example, a fuel distribution pipe equipped with a fuel nozzle injection fuel self-exit path 7 Kaimachi. And

550338 五、發明說明（6) 燃料泵E固然使用外 ~ 可為DC(直流）馬達。 /、、、、電刷馬達，惟不限於此，亦例。過濾裔之構造亦不限於本實施丁係内部貯存燃料之 TA。2 0係閉塞燃料:門曰’於下方底部穿設開口部構件。蓋構件2〇=^^°部ΤΑ ’同時支持燃料之蓋550338 V. Description of the invention (6) Of course, the fuel pump E can be a DC (direct current) motor. / ,,,, brush motor, but it is not limited to this. The structure of the filter is not limited to the TA of the internal storage fuel in this implementation. 2 0 series occluded fuel: the door is opened through the opening at the bottom. Cap member 2〇 = ^^ ° 部 ΤΑ ’Cap supporting fuel at the same time

^ ^ ^ i Μ ^20Α τ ^ I, ^Λν/ΤΑ ^ ^ "2〇A 且，於面&芸卜周方向伸出之凸緣部2〇β。並言之二;= 部20Ε 。前述支持部2〇D ^ ^持°P20D及濾清器收納凹周部向上突出彤/ 自现構件20之燃料槽内側20C之外 F夕$ ^ 形成，同時，作成可直接或間接抵接燁料$ 二之二長方罐^ I 皿構件20之燃料槽2〇C朝圓筒部20A内部，向下凹 :納安裝於燃料泵^；之泵吸入通路5之濾清㈣。更且，於盍構件20穿設一端於燃料槽τ内開口，另—端朝外 4屏口之达出通路22。23係例如無電刷馬達之控制電路或 DC馬達之控制電路等泵驅動電路，其收納配驅收納構件24。並且’燃料泵E藉以下收納配置於燃料槽T内。第一，燃料泵E面臨燃料槽内側20C配置，同時，燃料泵£之泵箱外側安裝於支持部20D。其藉由例如將配置於設在支持部 2 0 D令間之槽部2 〇 f之二叉狀束帶2 5捲繞泵箱κ，予以螺接來進行。燃料泵E藉由以上安裝於蓋構件2〇，此時，安裝在開口於燃料泵E下方之泵吸入通路5之濾清器2 1收納配置^ ^ i ^ ^ 20A τ ^ I, ^ Λν / ΤΑ ^ ^ " 20A, and a flange portion 20β extending in the circumferential direction of the surface & And the second word; = Ministry 20E. The aforementioned supporting portion 20D ^ ^ holding ° P20D and the filter receiving recessed peripheral portion protrude upward / from the inside of the fuel tank 20C outside the existing member 20 to form F ^, and at the same time, it can be directly or indirectly abutted 烨The fuel tank 20C of the rectangular tank ^ I of the dish member 20 faces the inside of the cylindrical portion 20A, and is recessed downwardly: it is installed in the fuel pump ^; and the filter of the pump suction passage 5 is cleaned. Furthermore, one end of the cymbal member 20 is opened in the fuel tank τ, and the other end is an access path 22 with 4 screen openings. 23 is a pump drive circuit such as a brushless motor control circuit or a DC motor control circuit. , Which accommodates the drive storage member 24. The 'fuel pump E is arranged in the fuel tank T by being accommodated as follows. First, the fuel pump E is disposed facing the inner side of the fuel tank 20C, and at the same time, the outer side of the fuel tank of the fuel pump is mounted on the support portion 20D. This is performed, for example, by winding a bifurcated strap 25 arranged in a groove portion 20f provided in the support portion 20D, and screwing the pump case κ. The fuel pump E is mounted on the cover member 20 as described above. At this time, the filter 21 installed in the pump suction passage 5 opened below the fuel pump E is accommodated.

\\312\2d-code\91-06\91107073. ptd 第9頁 550338 五、發明說明（7) ，盍構件20之瀘清器收納凹部2〇E内。又，開口於 =泵E之送出通路7連接配置於蓋構件2()之送出通路^。 Ϊ二处：納配置泵驅動電路23之驅動電路收納構件24朝向部2〇E配置。所謂對向遽清器收納凹二 1壓電路、位置檢測感測器、功率電晶體等之=之半以上面積面臨濾清器收納凹部2〇E配置。又，自严動電路㈣内構件μ之一部份伸延至外側之第i凸:部 ^ ^ 〇B ^ ° ^ ^ ^ ^ ^ « i 4。 _ σ旒a由供電端子Q輸入燃料泵E之電樞線圈堪並且’燃料泉£安裝於蓋構件20之支持部20D，同時，配電H Ϊ件2°之燃料槽外側2°G而收納配置栗驅動 1路2 3之驅動電路收納構件24抵接之蓋構件別之圓筒部 20A插入配置於燃料槽開口部以内，同時，蓋構件“之凸緣咅P20B抵接配置於與燃料槽τ 一體形成之支持部τβ上，於此狀態下，自驅動電路收納構件24之另一部份（圖中左 =)。伴延至外側之第2凸緣部24Β經由螺栓26向支持部TD螺根據以上，蓋構件20經由驅動電路收納構件以挾持 '固定配置於燃料槽T，此時，藉〇形環27進行燃料槽τ之開口部ΤΑ與蓋構件20之圓筒部2〇Α間之密封。並且，-藉來自泵驅動電路23之輪出信號驅動燃料泵 \\312\2d-code\91-06\91107073. ptd 第10頁 550338 五發明說明（8) E ’貝丁存於燃井斗士基rp 5吸入泵室4内，日於$ =1料曰即經由濾、清器2 1、泵吸入通路 FC供至馬達室8 ; 7至幵壓之燃料經由泵送出通路β、去雜質，供4=::ίί8内之燃料藉過滤器F除蓋構件20之送出^ ，月淨之燃料經由送出通路7及、出通路22向外部供應。 —並且’本發明之燃料供給裝置且有以下Λ 蓋構件20之燃料槽外側2〇G向' 徵。第一，於泵驅動電路23 〇由於山心 ^ 心月°。收納凹部20E配置中，不會浸入燃：：如：此泵·=電路23即配置於大氣封構件，且益需此m φ …、而為求其密封準備特別密穩定化及製造’藉此，可達成送出性能之外心从+之減低。又由於共於燃料栗E内，以及系驅動電⑽不直接電路23不配置 22配置，向燃料噴射間等之外部流下之妾达出通路7、自泵驅動電路23之熱直接加熱，故可抑制二發可抑制燃料配管系統内之氣泡發生，可達孤度上升，給。又’泵驅動電路23不收納達成良好之燃料供 ^身之重量，同時可變得密實，尤m内; 支持部20D之際，毋須特別提高支持剛^ 4 、提高安裝性。又由於若於燃料槽外戰且之二納凹部20E配置泵驅動電路23，即可勹濾π 收 ^^ > #1 ^^ϋ21 /f4s, 之遽清器收納凹部2〇E内之燃料冷卻系驅動電吊路23，然以^流經由驅動電路收納構件24，將熱散放於大氣對泵驅動電路23冷卻之效果。更且，若藉金屬材料製驅= \\312\2d-code\91-06\91107073.ptd 第11頁 550338 五、發明說明（9) _ 電路收納構件2 4將蓋構件2 〇姑姓 m ^ 必特別準備新的壓緊構件，於燃料槽τ’即不構件20。更且，又由於在燃以/成/脂材料形成蓋濾清器21預先收納配置於蓋構;衣、盍才件：之際，㈣之開口部ΤΑ嶋器21破損，可A # i以上，根據本發明燃料供給裝置，由於在罢構# # > 機供給自燃料栗送出之燃料，又於蓋構；==發動對向_收納凹部配置驅動燃料…驅動=外：’ 燃料密封性’可達成送出性能之ί 度之上什，可減低軋泡之發生，獲得良好之姆做性。又由於泵驅動電路不直接收納於燃料泵内、，:，，’°特燃料果之重量，可使其密實，可提高對蓋構件之輕又由於泵驅動電路之一側藉經常循環於淚、生、之燃料間接冷卻，其另一側經由驅動電^收j 2凹邛内散熱，故可提高泵驅動電路之冷卻效果。更、、’冓件向大氣預先收納配置於濾清器收納凹部内，故於 ^由於/慮^器料槽之開口部之際，濾清器亦不會受到損‘盖才，:，塞燃、劳，可提高組裝\\ 312 \ 2d-code \ 91-06 \ 91107073. Ptd page 9 550338 5. Description of the invention (7), the cleaner of the cymbal member 20 is stored in the recess 20E. In addition, the delivery path 7 opened to the pump E is connected to the delivery path ^ of the cover member 2 (). Second place: The drive circuit accommodating member 24 in which the pump drive circuit 23 is housed is arranged toward the portion 20E. The so-called opposing filter housing recess 2 is arranged in a filter housing recess 20E with more than half of the area of the 1-voltage circuit, the position detection sensor, the power transistor, etc. facing the filter housing. In addition, a part of the inner member μ of the self-acting circuit 延 extends to the i-th convex part of the outer side ^ ^ 〇B ^ ° ^ ^ ^ ^ ^ ^ i 4. _ σ 旒 a is input to the armature coil of the fuel pump E from the power supply terminal Q, and the fuel spring is installed on the support portion 20D of the cover member 20, and at the same time, the power distribution H is 2 ° outside the fuel tank 2 ° G and is stored and arranged. The cylindrical part 20A of the cover member which is in contact with the drive circuit housing member 24 of the Li 1 drive 2 3 is inserted into the fuel tank opening, and the flange 咅 P20B of the cover member is placed in contact with the fuel tank τ. On the integrally formed support portion τβ, in this state, the other part of the drive circuit accommodating member 24 (left = in the figure). The second flange portion 24B extending to the outside is bolted to the support portion TD via the bolt 26 according to As described above, the cover member 20 is fixedly disposed in the fuel tank T via the drive circuit housing member. At this time, the opening portion TA of the fuel tank τ and the cylindrical portion 20A of the cover member 20 are sealed by the O-ring 27. And,-the fuel pump is driven by the wheel output signal from the pump drive circuit 23 \\ 312 \ 2d-code \ 91-06 \ 91107073. Ptd p.10 550338 5 Description of the invention (8) E 'Betin is stored in the well The fighter 5 rp 5 sucks into the pump chamber 4, and at $ = 1, it passes through the filter and cleaner 2 1. The pump sucks The passage FC is supplied to the motor chamber 8; the fuel from 7 to 幵 is pumped out of the passage β to remove impurities, and the fuel in 4 = :: ί 8 is sent by the filter F to remove the cover member 20 ^, and the monthly fuel is passed through The delivery path 7 and the outlet path 22 are supplied to the outside. -And the 'fuel supply device of the present invention has the following 20G from the outside of the fuel tank of the Λ cover member 20'. First, the pump drive circuit 23 Heart ^ Heart month °. In the configuration of the storage recess 20E, it will not be immersed in fire :: For example, this pump · = circuit 23 is arranged in the atmosphere sealing member, and this m φ… is required, and it is particularly dense and stable for its sealing preparation It can reduce the delivery performance from +. This is because it is shared with the fuel pump E, and because the drive circuit is not directly connected to the circuit 23, it is not configured with 22, and it flows down to the outside of the fuel injection room. Zhida outlet path 7, the heat from the pump drive circuit 23 is directly heated, so it can suppress the secondary firing and can suppress the occurrence of air bubbles in the fuel piping system, and the loneliness can be increased, and the pump drive circuit 23 is not accommodated to achieve a good Weight of fuel supply and can become In the case of the support section 20D, there is no need to increase the support rigidity ^ 4 and improve the installability. Also, if the battle is outside the fuel tank and the pump driving circuit 23 is configured in the second recessed portion 20E, it can be filtered. ^^ ># 1 ^^ ϋ21 / f4s, the fuel cooling system in the cleaner storage recess 20E drives the electric hoistway 23, and then passes the drive circuit storage member 24 in a ^ flow to dissipate the heat to the atmosphere. The cooling effect of the pump drive circuit 23. Moreover, if the drive is made of metal material = \\ 312 \ 2d-code \ 91-06 \ 91107073.ptd Page 11 550338 V. Description of the invention (9) _ Circuit storage member 2 4 The cover member 20 must be specially prepared with a new pressing member, and the fuel tank τ ', that is, the member 20 is not prepared. In addition, because the cover filter 21 is formed by burning / forming / fat material, the cover filter 21 is stored in the cover structure in advance; on the occasion, the opening Τ of the ㈣ is damaged, and can be A # i or more According to the fuel supply device of the present invention, since the fuel sent from the fuel pump is supplied to the striker # # > machine, it is also in the cover structure; == launches the opposite _ storage recess is configured to drive the fuel ... drive = outside: 'fuel tightness 'It can achieve more than the delivery performance, which can reduce the occurrence of foaming and obtain good performance. And because the pump drive circuit is not directly stored in the fuel pump, the weight of the special fuel fruit can make it dense, can increase the lightness of the cover member, and because one side of the pump drive circuit often circulates in tears. The fuel is cooled indirectly, and the other side is radiated by the driving power receiving j 2 recess, so the cooling effect of the pump driving circuit can be improved. In addition, 'The pieces are stored in the filter storage recess in advance to the atmosphere, so the filter will not be damaged when the opening of the material tank is not considered.' Burning and labor can improve assembly

\\312\2d-code\91-06\91107073.ptd 第12頁 550338 五、發明說明（ίο) 性。又，藉由泵驅動電路配置在未與形成於蓋構件之送出通路連接之位置，故可抑制燃料溫度上昇，可抑制燃料配管系統内氣泡發生。更且，若以合成樹脂材料形成蓋構件，同時，以金屬材料形成收納泵驅動電路之驅動電路收納構件，經由驅動電路收納構件將蓋構件安裝於燃料槽，即可容易以合成樹脂材料形成盖構件。元件、編號之說明\\ 312 \ 2d-code \ 91-06 \ 91107073.ptd Page 12 550338 5. Description of invention (ίο). In addition, since the pump driving circuit is disposed at a position not connected to the delivery passage formed in the cover member, it is possible to suppress the rise in fuel temperature and the occurrence of bubbles in the fuel piping system. Furthermore, if the cover member is formed of a synthetic resin material, and the drive circuit storage member that houses the pump drive circuit is formed of a metal material, and the cover member is mounted on the fuel tank via the drive circuit storage member, the cover can be easily formed of the synthetic resin material. member. Description of components and numbers

1 泵殼 2 泵蓋 3 轴承保持蓋 4 泵室 5 泵吸入通路 6 泵送出通路 7 送出通路 8 馬達室 10 轉子扼 11 磁鐵1 1 12 旋轉軸 13 定子 14 電樞線圈 15 葉輪 20 蓋構件 20A 圓筒部 20B 凸緣咅P1 Pump housing 2 Pump cover 3 Bearing holding cover 4 Pump chamber 5 Pump suction path 6 Pump delivery path 7 Delivery path 8 Motor chamber 10 Rotor choke 11 Magnet 1 1 12 Rotary shaft 13 Stator 14 Armature coil 15 Impeller 20 Cover member 20A Cylindrical part 20B flange 咅 P

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五、發明說明（11) 20C 燃料槽内供J 20D 支持部 20E 濾清器收：納凹部 20G 燃料槽外側 21 濾清器 22 送出通路 23 泵驅動電路 24 驅動電路收納構件 24A 第1凸緣部 24B 第2凸緣若P 25 二叉狀束帶 26 螺栓 27 0形環 E 燃料泵 T 燃料槽 \\312\2d-code\91-06\91107073.ptd 第14頁 550338V. Description of the invention (11) The 20C fuel tank is provided with the J 20D support 20E filter to receive: the recessed portion 20G outside the fuel tank 21 filter 22 sending-out path 23 pump drive circuit 24 drive circuit housing member 24A first flange portion 24B Second flange if P 25 Binary strap 26 Bolt 27 0-ring E Fuel pump T Fuel tank \\ 312 \ 2d-code \ 91-06 \ 91107073.ptd Page 14 550338

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Claims

550338 6. Scope of patent application 1. A fuel supply device is provided with an opening under the fuel tank, and the fuel pump is supported by a cover member that closes the opening, which is characterized in that the inside of the fuel tank 20c of the seedling and the component 20 Form a support unit 2 to support the fuel pump and store the pump suction passage 5 connected to the fuel pump E = receiving recess 20E. At the same time, the cover member 20 and the cover member 20 are penetrated to the outside opening. The engine is supplied from the fuel pump. The output passage 22 is 20G outside the fuel tank of the cover member 20. The second === accommodating recess 20E is provided with a pump driving circuit 23 for driving the fuel pump. Xiang Liaoqiaoyi 2. As for the fuel supply device of the first patent application scope, the compound pump drive circuit is arranged in a position not described in the cover structure φ and the lieutenant general. Fu Yigan "The outlet path 22 is connected 3. As in the fuel supply device of the first patent application scope, the aforementioned cover member formed of a resin material, at the same time, the drive circuit housing member 24 of the synthetic nano pump drive circuit 23" The storage member 24 formed of the material is attached to the fuel tank τ. , Received by the drive circuit

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