TW200938722A - Fuel supply device for motor vehicle - Google Patents

Fuel supply device for motor vehicle Download PDF

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Publication number
TW200938722A
TW200938722A TW97114781A TW97114781A TW200938722A TW 200938722 A TW200938722 A TW 200938722A TW 97114781 A TW97114781 A TW 97114781A TW 97114781 A TW97114781 A TW 97114781A TW 200938722 A TW200938722 A TW 200938722A
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Taiwan
Prior art keywords
fuel
supply device
filter
fuel supply
pump
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TW97114781A
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Chinese (zh)
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TWI358493B (en
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Minoru Takata
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Mitsubishi Electric Corp
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Abstract

A fuel supply device for a motor vehicle assures a flow path for excess fuel from a pressure regulator by innovating the shape of existing parts that constitute the fuel supply device. The fuel supply device has a flange portion having a discharge tube and a stay fixed thereon, a pump case of a shape having a bottom, the pump case being mounted on the stay and having an opening for accommodating a fuel pump which discharges the fuel drawn through a strainer, and a filter portion covering the opening of the pump case and having a high pressure filter for filtering the fuel passing through the fuel pump and a pressure regulator for setting the pressure of the fuel discharged from the discharge tube at a predetermined pressure. The fuel supply device further includes a vessel mounted on the pump case, the vessel being of a shape having a bottom for covering the strainer, wherein a portion of the closed bottom shape of the vessel is cut out and a flow path for allowing excess fuel from the pressure regulator to flow to the strainer is provided on the pump case.

Description

200938722 九、發明說明: 【發明所屬之技術領域】 本發明係關於一種對車輛用等内燃機關之噴射器 (injector)等壓送燃料箱内之燃料的車輛用燃料供給裳 置,詳細言之,關於一種即使因緊急煞車等造成燃料之油 面變化亦可穩定地壓送燃料的構造。 【先前技術】 〇 ❹ 為了捕捉燃料中所含之塵埃等夾雜物,並將該燃料穩 定供給至安裝在例如引擎之燃料喷射裝置之喷射器,一般 藉由燃料泵之吸入口所具備之例如尼龍等網眼比較粗的濾 清器(strainer),首先將燃料箱内之夾雜物予以去除。= 者,習知有一種技術,係對於包含通過該濾清器、或在構 成燃料果之馬達部所產生的電刷、整流器等之磨耗粉的失 雜物,以配設在燃料泵之下游侧(以燃料流路來看係指姆料 果之下段)的高廢過濾器(highpressurefm 之過濾元件進行捕捉。 、然而,由於前述遽清器係位在燃料供給之所謂最 游’因此-般而言係以即使燃料箱内之燃料變少亦可供 之方式位在該燃料箱内之最底部。另—方面,該燃焼少時 即使油面因加減速或姿勢變化而變化,亦不會, :利用燃綱實地進行抽吸,特別是在機車(二二: 輛)要求此種技術。當然這無非.是在於防止以下現 =時或下坡行進時等,由於剩餘之少量燃料會朝燃料箱另 移動,因此滤清器會從燃料之油面露出,即使:後踩^ 320157 6 200938722 門’引擎之說轉數亦不會增加而不會加速,即所謂引擎之 喘氣(breathing)現象。因此,已知有—種技術,係藉由將 壓力調節器(pressure regulator)組裝在燃料供給裝置, 並使連結於該壓力調節器之排出口的軟管之開口朝向滅清 器,即可使來自排出口之剩餘燃料直接且有效率地到達濾 清器,而該壓力調節器係將供給至喷射器之燃料壓力保持 為一定者(參照例如專利文獻2 )。 (專利文獻1)日本特開2003-148267號公報(第3頁右攔第 45行至第49行,第2圖) 【發明内容】 (發明所欲解決之課題) 如此,由於將壓力調節器組裝在燃料供給裝 .......''扣衣直,囚出 不但可使靖箱周邊之配管小型化,而且難燃料不會朝 =擎之熱所加熱’而可期待能抑制燃料蒸氣或氣泡在燃制 箱内產生的效果。然而’在從燃料供給農置内之燃料流辟 ❹觀看時’由於Μ力調節器當然係配設在燃料泵之下段,因 此與滤清时某種程度之隔開。因此,由於必須以軟管等 連接該壓力調節器錢清器,故零件數量或組裝工數會辦 :二成為成本降低之瓶頸。再者’藉由重新考量燃心 ^置之佈局,雖物理上亦可進行濾清器之近傍配置,但 二^是必須在燃料泵與高壓過攄器間或高壓過據 段y力調即器介設會造成增加成本增加之某種連接手 本發明係鑑於上述問題點而研創者,其目的在於對於 320157 7 200938722 構成燃料供給裝置之既存零件的形狀加以改良,以確保來 自壓力调節器之剩餘燃料用之流路的車輛用燃料供給穿 ♦ £ 〇 (解決課題之手段) • 本發明之車輛用燃料供給裝置係具備:凸緣部,係固 •定有裝填在燃料箱之開口部之送出管及支柱;有底形狀 之泵殼體(pump Case),係安裝在前述支柱,且具有用 ❹以收納燃料泵之開口部,而該燃料泵係吸入前述燃料箱 之燃料而將經過濾清器(strainer)而吸入之燃料送出 者;過濾部,係覆蓋該泵殼體之開口部,且具有用以過 濾通過前述燃料泵之燃料的高壓過濾器(high pressupe filter)、及將從前述送出管送出之燃料設定為預定之 壓力的壓力調節器(pressure regulator);及有底形狀 之容器(vessel),係安裝在前述泵殼體,並覆蓋前述濾 清器;為了使前述燃料箱之燃料到達前述濾清器,而將 〇 前述容器之有底形狀的一部分予以切除,並且在前述泵 殼體設置用以使來自前述壓力調節器之剩餘燃料到達 前述濾清器的流路。 (發明之效果) 本發明係如以上之說明,可提供一種小型化且廉價之 車辅用燃料供給裝置。 【實施方式】 (實施形態1) 第1圖係顯示將本發明實施形態1之車輛用燃料供給 320157 200938722 裝置(以下稱燃料供給裝置)設 箱内部之狀態的剖視圖。第2 之前視圖及俯視圖。此外,第 置之分解斜視圖。 置在車輛(例如機車)之燃料 圖係第1圖之燃料供給裝置 3圖係第1圖之燃料供給裝 如第ϊ圖所示,燃料供給裝置Μ在其設置狀態下, 大致與機車之燃料箱u平行之形態,亦即與紙面上、 t向左下方傾斜之底部lla平行之形態,並由設在該底 ❹=:nllb,從後述之容器12側插入並朝反時針 向疑轉90度後’將留在底部lla之外側的凸緣部Μ以 螺栓15隔著襯塾固定在底部山,藉此將開口部爪予以 閉塞,並將燃料供給裝置丨設置在燃料箱n。在凸緣部Μ 熔接有支柱16及送出f 17,其中,支柱16係形成為具有 一,大致呈L字形之侧板的大致呈U字形,朝向該大致呈 L字形之彎曲點,嵌設有後述之過濾部18及泵殼體19,另. 一方面,送出管17係被壓入至過濾部18,並且在送出口 ❹17a連接有未圖示之燃料軟管,該燃料軟管係連接在未圖 示之喷射器。 在第2圖中’在過濾部18設有高壓過濾器22,該高 壓過濾器22係對在後述燃料泵2〇之馬達部所產生的電 刷、整流器等之磨耗粉、及未能以後述之濾清器21去除之 夾雜物進行捕捉。通過該高壓過濾器22之燃料係由送出管 17送出,而將此時之燃料壓力保持在預定值之周知的壓力 調節器23係經由〇環24以液密方式固定在該過濾部18。 在該過滤部18亦設有燃料吸入口 iga,並且將連接管26 320157 9 200938722 $經由0環25以液密方式固定,且燃料系2〇之送出口他 ·=由〇環27以液密方式㈣在該連接管%,藉此將以 燃料果20加壓之燃料送至高壓過遽器22。再者,如眾所 周知,藉由裝設在燃料系2〇之燃料吸人σ m的滅清界 ^而將該經加壓之燃料予以吸上。再者,在送出口㈣内 叹有周知之止回閥(Check valve),俾殘留於燃料軟管之燃 料在引擎停止時不會往燃料箱u倒流。 泵殼體19係在紙面上’右侧具有可以降之有底形狀以 作為開口部19a,因此覆裝有燃料泵2〇,並且在其底外 有貫穿孔19b,在透過該貫穿孔⑽而插通之燃料吸入: 2〇b ’可連接濾清器21之連接管21a(參照第3圖)。再者, 為了方便起見,以底部為邊界,在紙面上將右侧稱為泵收 納至19c ’將左側稱為濾清器收納室! 9d。另一方面,左侧 具有有底形狀’其中-部分,更具體而言安裝有在紙面上 之上部被切除之容器12,且遽清器21會因該被切除之部 ❹位(亦即缺口部12a)而露出。這是由於如第i圖所示,口 要燃料供給裝置i沈沒在燃料29内,藉由該缺口部i2a 而吸入燃料之故。再者,將燃料壓力保持在預定值之結果, 剩餘之燃料會由壓力調節器56排出,並導入至該容器12, 攻正是本發明之主要部分,其細節容後說明。此外,i9e(參 照第3圖)係將藉由燃料之吸入/加壓而產生之氣泡予以排 出之氣泡排出口,30係經由支持板31安裝在支柱16且用 以檢測油面29a(參照第1圖)之周知的熱敏電阻 (thermister) °。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 A structure in which fuel can be stably pumped even if the oil level of the fuel changes due to an emergency vehicle or the like. [Prior Art] 〇❹ In order to capture inclusions such as dust contained in the fuel and stably supply the fuel to an injector mounted on a fuel injection device such as an engine, for example, a nylon provided by a suction port of the fuel pump is generally provided. When the mesh is relatively thick, the inclusions in the fuel tank are first removed. In the prior art, there is a technique for disposing a waste material including a brush, a rectifier, or the like which is generated by the filter or the motor portion constituting the fuel fruit, and is disposed downstream of the fuel pump. The high-volume filter (highpressurefm filter element is captured on the side (in the fuel flow path). However, because the aforementioned clarifier is in the so-called most travel of the fuel supply, it is In other words, even if the fuel in the fuel tank is reduced, the fuel tank can be placed at the bottom of the fuel tank. On the other hand, even if the fuel surface changes due to acceleration/deceleration or posture change, it will not , : The use of burning in the field for pumping, especially in the locomotive (two: two) requires this technology. Of course, this is nothing more than to prevent the following current or downhill travel, etc., because the remaining small amount of fuel will The fuel tank moves, so the filter will be exposed from the fuel oil surface, even if: after stepping ^ 320157 6 200938722 door 'engine revolution number will not increase without acceleration, the so-called engine breathing phenomenon Therefore, it is known a technique in which the pressure regulator is assembled in a fuel supply device, and the opening of the hose connected to the discharge port of the pressure regulator is directed toward the extinguisher, so that the remaining from the discharge port The fuel reaches the filter directly and efficiently, and the pressure regulator maintains the fuel pressure supplied to the injector to a certain value (see, for example, Patent Document 2). (Patent Document 1) Japanese Patent Laid-Open Publication No. 2003-148267 (Page 3, right bar, line 45 to line 49, Fig. 2) [Summary of the Invention] (Problems to be solved by the invention) Thus, since the pressure regulator is assembled in the fuel supply device. 'The buckle is straight, and the prisoner can not only miniaturize the piping around the Jingbox, but also prevent the fuel from heating up to the heat of the engine. It can be expected to suppress the effect of fuel vapor or bubbles in the combustion box. 'When viewed from the fuel supply in the fuel supply farmhouse', the force regulator is of course assigned to the lower part of the fuel pump, so it is somewhat separated from the filtration. Therefore, since the hose must be used Wait for the pressure to adjust Qian Qingji, so the number of parts or the number of assembly workers will be handled: Second, it will become a bottleneck for cost reduction. In addition, by re-considering the layout of the burning heart, although the filter can be physically configured, but the second ^ is a kind of connection that must be added between the fuel pump and the high-pressure filter or the high-voltage over-the-counter to increase the cost. The present invention is based on the above problems, and the purpose is to 320157 7 200938722 The shape of the existing components constituting the fuel supply device is improved to ensure the fuel supply for the vehicle from the flow path for the remaining fuel of the pressure regulator. (Means for solving the problem) • Vehicle fuel of the present invention The supply device includes a flange portion that secures a delivery pipe and a column that are loaded in an opening of the fuel tank, and a pump case having a bottom shape that is attached to the pillar and has a The fuel pump is configured to receive an opening of the fuel pump, and the fuel pump sucks the fuel of the fuel tank to send the fuel sucked by the strainer; the filter unit covers the opening of the pump casing a mouth portion having a high pressupe filter for filtering fuel passing through the fuel pump, and a pressure regulator for setting a fuel sent from the delivery pipe to a predetermined pressure; and a bottom a shape of a vessel mounted to the pump casing and covering the filter; in order to allow the fuel of the fuel tank to reach the filter, a portion of the bottom shape of the container is cut off, and The pump casing is provided with a flow path for allowing the remaining fuel from the aforementioned pressure regulator to reach the filter. (Effects of the Invention) As described above, the present invention provides a miniaturized and inexpensive vehicle auxiliary fuel supply device. [Embodiment] (Embodiment 1) FIG. 1 is a cross-sectional view showing a state in which a vehicle fuel supply device according to Embodiment 1 of the present invention is supplied to a device (hereinafter referred to as a fuel supply device). 2nd front view and top view. In addition, the first exploded perspective view. The fuel supply device of the first embodiment of the fuel supply system of the vehicle (for example, a locomotive) is shown in the figure, and the fuel supply device is substantially in the state of the fuel supply of the locomotive. The form in which the box u is parallel, that is, the form parallel to the bottom portion 11a which is inclined to the left and the lower side on the paper surface, and is inserted from the side of the container 12 to be described later and turned to the counterclockwise direction by the bottom ❹=:nllb. After that, the flange portion 留 which is left on the outer side of the bottom portion 11a is fixed to the bottom mountain with the bolt 15 via the lining, thereby closing the opening claw and providing the fuel supply device 丨 in the fuel tank n. The pillar 16 is welded to the flange portion 及 and the f is sent out. The pillar 16 is formed in a substantially U-shape having a substantially L-shaped side plate, and is embedded in a substantially L-shaped bending point. The filter unit 18 and the pump casing 19, which will be described later, on the other hand, the delivery pipe 17 is press-fitted into the filter unit 18, and a fuel hose (not shown) is connected to the delivery port 17a, and the fuel hose is connected to An injector not shown. In Fig. 2, a high-pressure filter 22 is provided in the filter unit 18, and the high-pressure filter 22 is a wear powder such as a brush or a rectifier generated in a motor portion of a fuel pump 2 to be described later, and is not described later. The filter 21 removes the inclusions for capture. The fuel passing through the high-pressure filter 22 is sent out from the delivery pipe 17, and the well-known pressure regulator 23 that maintains the fuel pressure at this time at a predetermined value is fixed to the filter portion 18 via the annulus 24 in a liquid-tight manner. A fuel suction port iga is also provided in the filter portion 18, and the connecting pipe 26 320157 9 200938722 $ is fixed in a liquid-tight manner via the 0 ring 25, and the fuel system 2 is sent out to the outlet. The mode (4) is at the connection pipe %, whereby the fuel pressurized with the fuel fruit 20 is sent to the high pressure filter 22. Further, as is well known, the pressurized fuel is sucked up by the extinguishing of the fuel 〇m installed in the fuel system. Further, in the delivery port (4), a well-known check valve is sighed, and the fuel remaining in the fuel hose does not flow back to the fuel tank u when the engine is stopped. The pump casing 19 has a bottomed shape on the right side of the paper surface as the opening portion 19a, so that the fuel pump 2 is covered, and a through hole 19b is formed outside the bottom, and the through hole (10) is transmitted through the through hole (10). Inserted fuel suction: 2〇b' can be connected to the connecting pipe 21a of the filter 21 (refer to Fig. 3). Furthermore, for the sake of convenience, the bottom side is bounded, and the right side is referred to as a pump on the paper surface to 19c' and the left side is referred to as a filter storage chamber! 9d. On the other hand, the left side has a bottomed shape 'partial portion', more specifically a container 12 that is cut off at the upper portion of the paper surface, and the cleaner 21 is clamped by the cut portion (ie, the gap) The portion 12a) is exposed. This is because, as shown in Fig. i, the fuel supply device i is sunk in the fuel 29, and the fuel is sucked by the notch portion i2a. Further, as a result of maintaining the fuel pressure at a predetermined value, the remaining fuel is discharged by the pressure regulator 56 and introduced into the container 12, which is an essential part of the present invention, the details of which will be described later. Further, i9e (see Fig. 3) is a bubble discharge port through which bubbles generated by suction/pressurization of fuel are discharged, and 30 is attached to the column 16 via the support plate 31 and is used to detect the oil surface 29a (refer to 1)) The known thermistor (thermister) °

320157 200938722 ❹ Ο 接著’根據第3圖說明該燃料供給裝置i之組裝順序。 先將燃料泵2〇及動調節器23嵌裝在過滤部㈣,將過 濾部之導件⑽插通至純16之一對前端他,並使 該導件18b滑動至支柱16之弯曲點,並且將送出管^墨 A入過遽部18 ’再將來自燃料泵2G之導線連接在設於凸緣 部13的連接器32’藉此首先組裝成以凸緣部㈣中心之 半成品。接著,將罩蓋33安裳在壓力調節器23讀體孤 參照第2圖),同時將系殼體19之導件⑽亦插通前端 3,並使泵殼體19滑動,直到該泵殼體19之上面盥過濾 下面抵接為止’而該罩蓋33係用以將來自壓力調 即益23之剩餘燃料導入至設於栗殼體^之後述流路⑼。 相當於導件19g之前端16a的部分係形成寬度較大, =該大寬度部經由擋止板34(在紙面上,正前側為前述支 ^板3!)以螺絲.鎖固在前端-之螺固部,藉此將栗殼體 h及合㈣部18安裝在支㈣。藉由該安裝,燃料吸入口 會插通貫穿孔19b’並突出至濾、清器收納室19d側,由 此連接於連接管21a,藉此形成從濾清器21至送出管17 之所謂燃料路徑。最後,安裝容器12,容器12之安裝係 益收,.内至19d之外周部的扣合凸部m、與設於容器^之 =合凹部m及缺口部12a的扣合而進行。藉由以上之植 可進行將該燃料供給裝置1設置於前述燃料箱u 關於該燃料供給裝置1之動作,特别是燃料供給方面 320157 11 200938722 之動作係如眾所周知者。亦320157 200938722 ❹ Ο Next, the assembly sequence of the fuel supply device i will be described based on Fig. 3 . First, the fuel pump 2〇 and the dynamic adjuster 23 are embedded in the filter portion (4), the guide member (10) of the filter portion is inserted to the front end of the pure 16 pair, and the guide member 18b is slid to the bending point of the strut 16, and The delivery tube ink A is introduced into the dam portion 18' and the wire from the fuel pump 2G is connected to the connector 32' provided at the flange portion 13 to thereby assemble the semi-finished product centered at the flange portion (4). Next, the cover 33 is mounted on the pressure regulator 23 to read the body solitary reference Fig. 2), and the guide member (10) of the tie housing 19 is also inserted into the front end 3, and the pump housing 19 is slid until the pump casing The upper surface of the body 19 is filtered to abut the lower side, and the cover 33 is used to introduce the remaining fuel from the pressure adjustment to the flow path (9) provided in the chestnut housing. The portion corresponding to the front end 16a of the guide 19g is formed to have a large width, and the large width portion is screwed to the front end via the stopper plate 34 (on the paper surface, the front side is the aforementioned support plate 3!) The screw portion is used to attach the chest shell h and the joint portion (4) to the branch (four). By this mounting, the fuel suction port is inserted through the through hole 19b' and protrudes to the side of the filter accommodating chamber 19d, thereby being connected to the connecting pipe 21a, thereby forming a so-called fuel from the filter 21 to the delivery pipe 17. path. Finally, the container 12 is attached, and the attachment of the container 12 is carried out, and the engaging convex portion m of the peripheral portion up to the 19d is engaged with the engagement of the recessed portion m and the notch portion 12a. The operation of the fuel supply device 1 in the fuel tank unit 1 with respect to the operation of the fuel supply device 1, in particular, the fuel supply aspect, 320157 11 200938722, is well known. also

• 20時,藉由燃料系 過連接器32驅動燃料I *内之燃料29即經由、二葉輪之旋轉,燃料箱η 壓,而由送出口 …b並加 1 0 ^ ^ 者該經送出之燃料係經由 過濾指内之兩塵過濾器22、送出管η 燃料軟管而供給至内燃機関之嘴射器等。另一方 118内之燃龍力比預定值高時,即 = 料而由Μ力調節器23排出 ^為剩餘燃 〇 、主。 併扣11此將該壓力保持在預定值。 所述雖i 21進行燃料之吸人時,濾'清器21係如前 所述,雖由谷器12所覆蓋,但在第2圖紙面上,1上 開口,因此在裝滿燃料29之狀態下(參照第…,可 且有效率地將燃料29導入濾清器21之周邊。而且,即使 油面.下降(圖巾29b),例如因彎曲行進時造成車體之 傾斜而使遽清器21露出時,滤清器收納室刚係藉由容器 12而發揮所謂燃料貯留室之功能,藉由貯留在此之燃料的 ❹應用,而不會對燃料泵20之加壓/吸入造成妨礙。 然而,貯留在燃料貯留室之燃料自然地有所限度,更 何況濾清器21露出之狀態持續的話,容易造成引擎2喘氣 現象。因此,在本發明中,著眼於來自壓力調節器之 燃料,有效率地將該剩餘燃料引導至燃料貯留室。更詳細 言之,在與燃料泵20之軸方向正交之方向的剖面呈中空= 之泵殼體19的外周面,以例如一體成形之方式具備有中空 狀之流路19f。該流路19f之出口 19i係如第3圖所示設 置在濾清器收納室19d,且藉由組裝順序所說明之罩蓋33 320157 12 200938722 的裝卸’將該罩蓋33之噴嘴部33a嵌合在流路⑼ ·==广與流路19f在上述剖面並不會連通。其目的 係在剩餘燃料流入栗收納室19c時,用以防止因車體 斜或加減速造成滤清器21之露出、亦即油面_之大幅移 動,並且防止該剩餘燃料亦從開口部19&飛出之情形 因此,在來自壓力調節器23之剩餘燃料經: 33a流入流路19f後,會無茂漏地從出口⑼到達_ 21、亦即燃料貯留室,因此 "° ❹ 卩使“ S 21露出之狀態持續 ί種知度之時間,造成引擎之喘氣現象的可能性極低。而 ,只要重新考量用以覆裝/支持燃料果2〇所不可或 栗殼體的形狀,無須追加特別之構件即可獲得前述之 /果,因此可提供一種組裝性佳且廉價之燃料供給裝置。 再者,有鐘於構件追加之點,本發明雖將罩蓋犯作 必要構件,但由第2圖(b )得知,宜 … 〇〇 ^ a, ^ , 八目的係相對於燃料泵 之軸方向’以使壓力調節器23之外周的一部分重疊之 ❹方式將兩構件配設在該燃料栗2 該組裝中,果殼體19不會與_=^的;'部分,因此在 之支柱16,同時使來自遷力調節器^而滑動在一對 '土 x 士 p器23之剩餘燃料確實地 抓入〜路19f。結果,可謀求除 給I署1夕古^ Γ凸緣邛丨3以外的燃料供 、置1之直徑方向的細長化,開口部Ub之• At 20 o'clock, the fuel 29 in the fuel I* is driven by the fuel system through the connector 32, that is, the rotation of the two impellers, the fuel tank η is pressed, and the delivery port ...b is added with 10 ^ ^. The fuel is supplied to the nozzle of the internal combustion engine or the like via the two dust filter 22 in the filter finger and the delivery pipe η fuel hose. When the fuel-burning force in the other side 118 is higher than the predetermined value, that is, it is discharged by the force regulator 23, and is the remaining fuel, the main. And buckle 11 to maintain the pressure at a predetermined value. When the fuel is sucked by the i 21 , the filter cleaner 21 is covered by the barr 12 as described above, but is opened on the second drawing surface, so that it is filled with the fuel 29 In the state (refer to the first, the fuel 29 can be efficiently introduced into the periphery of the filter 21. Further, even if the oil surface is lowered (the towel 29b), for example, the inclination of the vehicle body is caused by the bending of the vehicle body When the device 21 is exposed, the filter accommodating chamber functions as a so-called fuel storage chamber by the container 12, and the sputum application of the fuel stored therein does not hinder the pressurization/inhalation of the fuel pump 20. However, the fuel stored in the fuel storage chamber is naturally limited, and moreover, the state in which the filter 21 is exposed continues to cause the engine 2 to gasp. Therefore, in the present invention, attention is paid to the fuel from the pressure regulator. The remaining fuel is efficiently guided to the fuel storage chamber. More specifically, the cross section in the direction orthogonal to the axial direction of the fuel pump 20 is hollow = the outer peripheral surface of the pump casing 19, for example, integrally formed The method has a hollow flow path 19f The outlet 19i of the flow path 19f is provided in the filter accommodating chamber 19d as shown in Fig. 3, and the nozzle portion 33a of the cover 33 is embedded by the attachment and detachment of the cover 33 320157 12 200938722 described in the assembly sequence. The combined flow path (9) ·== wide and the flow path 19f are not communicated in the above-described cross section. The purpose is to prevent the filter 21 from being caused by the inclination or acceleration and deceleration of the vehicle body when the remaining fuel flows into the chest storage chamber 19c. The exposure, that is, the oil level, is largely moved, and the remaining fuel is prevented from flying out of the opening 19 & therefore, after the remaining fuel from the pressure regulator 23 flows through: 33a into the flow path 19f, there is no leakage. From the exit (9) to the _ 21, that is, the fuel storage room, therefore, the "S 21 exposed state continues for a period of time, causing the possibility of an engine gasping phenomenon is extremely low. Considering the shape of the cover/supporting fuel can not be used, the above-mentioned results can be obtained without adding special components, so that a fuel supply device with good assembly and low cost can be provided. There is a point in the addition of the component, this Although the cover is made of a necessary member, it is known from Fig. 2(b) that 〇〇^ a, ^ , eight objects are relative to the axial direction of the fuel pump to make the outer periphery of the pressure regulator 23 In a part of the overlapping manner, the two members are disposed in the assembly of the fuel pump 2, and the fruit shell 19 does not overlap with the portion of the _=^, so that the pillar 16 is simultaneously slid from the shifting regulator In the case of a pair of soils, the remaining fuel of the soil is actually taken into the road 19f. As a result, it is possible to supply the fuel in the direction of the diameter other than the flange 1 of the I. Slender, opening Ub

因此可大大地期待燃料箱n之氣 l 了縮J 之次要效果。 ^叫升,甚至強度提升 再者,在本實施形態中,雖具備高麗過 如藉由預先使濾清器21之開口縮小 %、 仁例 襁小,則並不一定需要高壓 320157 13 200938722 ‘ , 過滤、益22 ’而且’即使為未具有高壓過濾器之燃料供給裝 置’亦未脱離本發明之範圍。 【圖式簡單說明】 第1圖係顯示將本發明實施形態1之燃料供給裝置設 置在燃料箱内部之狀態的剖視圖。 、第2圖係第1圖之燃料供給裝置之(3)前視圖及(1))俯 視圖。 5 第3圖係第1圖之燃料供給裝置之分解斜視圖。 【主要元件符號說明】 1 燃料供給裝置 11 燃料箱 11a 底部 lib 開口部 12 容器 12a 缺口部 12b 扣合凹部 13 凸緣部 16 支柱 16 a •前端 17 送出管 17a 、20a送出口 〇 18 過濾部 18a 、20b燃料吸入 19 泵殼體 19a 開口部 19b 貫穿孔 19c 泵收納室 19d 遽清器收納室 19e 氣泡排出〇 19f 流路 19g 導件 19h 扣合凸部 19i 出口 20 燃料泵 21 濾清器 22 高壓過濾器 23 壓力調節器 23a 殼體 24、 25 、 27 〇 環 320157 14 200938722 26 連接管 29 29a、 29b油面 30 31 支持板 32 33 罩蓋 33a 34 擒止板 燃料 熱敏電阻 連接器 喷嘴部 Ο ❹ 15 320157Therefore, the secondary effect of the fuel tank n is expected to be greatly reduced. In addition, in the present embodiment, although the height of the filter 21 is reduced by a small amount in the present embodiment, the high voltage is not necessarily required to be 320157 13 200938722 ', Filtration, benefit 22' and 'even a fuel supply device without a high pressure filter' does not depart from the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a state in which a fuel supply device according to a first embodiment of the present invention is placed inside a fuel tank. Fig. 2 is a (3) front view and (1) a top view of the fuel supply device of Fig. 1. 5 Fig. 3 is an exploded perspective view of the fuel supply device of Fig. 1. [Description of main components] 1 fuel supply device 11 fuel tank 11a bottom lib opening 12 container 12a notch 12b snap recess 13 flange portion 16 pillar 16 a • front end 17 delivery pipe 17a, 20a delivery port 18 filter portion 18a 20b fuel suction 19 pump housing 19a opening 19b through hole 19c pump storage chamber 19d cleaner storage chamber 19e bubble discharge port 19f flow path 19g guide 19h snap projection 19i outlet 20 fuel pump 21 filter 22 high pressure Filter 23 Pressure regulator 23a Housing 24, 25, 27 320 ring 320157 14 200938722 26 Connecting tube 29 29a, 29b oil level 30 31 Support plate 32 33 Cover 33a 34 Stop plate fuel thermistor connector nozzle Ο ❹ 15 320157

Claims (1)

200938722 ' 十、申請專利範圍: L ;=:_共給裝置,係具備:凸緣部,係固定有 ▲體=之,口部之送出管及支柱,·有底形狀之栗 冗又體,係安裝在前述支柱, ο 口部,而該燃料系係吸…/、有用以收納燃料系之開 清器吸入之燃料送出者燃料箱之燃料而將經過滤 口部,且呈古B、、、、,达濾。卩,係覆蓋該泵殼體之開 二八卩過遽通過前述燃料果之燃料的高壓過 ::及將從前述送出管送出之燃料設定為預定之壓力 器;及有底形狀之容器,係安裝在前述泵殼 據清器;為了使前述燃料箱之燃料= 二慮:盗,而將前述容器之有底形狀的-部分予以切 除,該車輛用燃料供給裝置之特徵為: 在前述泵殼體設置用以使來自前述壓力調 剩餘燃料到達前述濾清器的流路。 申明專利範圍第1項之車輛用燃料供給裝置, ::剩餘燃料直接蓄積在容器之方式配設流路之出中’ 3·如申請專利範圍第2項之車_燃料供給裝置,兑出。 之軸線與該壓力調節器之軸線為平行,且、從上 述軸線方向來看,前述燃料栗之外 之外周係相交又。 丄1力調節器 32015*7 16200938722 ' X. Patent application scope: L ;=: _ co-feeding device, with: flange part, fixed ▲ body =, the mouth of the delivery tube and the pillar, · the bottom shape of the chestnut is redundant, Installed in the above-mentioned pillar, ο mouth, and the fuel system is sucked.../, and is used to store the fuel of the fuel tank of the fuel dispenser sucked by the fuel system cleaner, and the filter port portion is ,,, to filter.卩, is a high pressure over which the fuel of the fuel tank is covered by the opening of the pump casing: and the fuel sent from the delivery pipe is set to a predetermined pressure; and a container having a bottom shape Installed in the aforementioned pump casing cleaner; in order to cut off the bottom portion of the container in order to make the fuel of the fuel tank = theft, the fuel supply device for the vehicle is characterized by: The body is arranged to allow the remaining fuel from the aforementioned pressure to reach the flow path of the filter. In the fuel supply device for a vehicle according to the first aspect of the patent, the fuel is supplied to the container in such a manner that the remaining fuel is directly stored in the container. 3. The vehicle-fuel supply device of the second application of the patent application is redeemed. The axis is parallel to the axis of the pressure regulator, and the outer circumferences of the fuel pump intersect each other as viewed from the axial direction.丄1 force regulator 32015*7 16
TW97114781A 2008-03-03 2008-04-23 Fuel supply device for motor vehicle TW200938722A (en)

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JP2013029049A (en) * 2011-07-27 2013-02-07 Mitsubishi Electric Corp Vehicle fuel supply device
CN103939250B (en) * 2013-01-18 2018-04-24 株式会社电装 Fuel supply system
JP6424854B2 (en) * 2016-03-18 2018-11-21 株式会社デンソー Fuel supply apparatus and method of manufacturing the same
JP6815298B2 (en) * 2017-09-19 2021-01-20 愛三工業株式会社 Fuel supply device
JP2023175254A (en) * 2022-05-30 2023-12-12 株式会社ミツバ fuel supply device

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JP3303708B2 (en) * 1997-01-31 2002-07-22 三菱電機株式会社 Vehicle fuel supply system
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US6655364B1 (en) * 2000-08-18 2003-12-02 Mitsubishi Denki Kabushiki Kaisha Fuel feed device

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