^9803 A7 B7 五、發明説明（1 ) 【發明所屬的技術領域】 (請先閱讀背面之注意事項再填寫本頁) 本發明是關於燃料供給用泵浦裝置，特別是關於用來 將從配置在引擎上方的燃料槽自由落下的燃料供給到燃料 噴射裝置的燃料供給用泵浦裝置。 【習知技術】 經濟部智慧財產局員工消費合作社印製 第8圖是用來將燃料供給到車輛或船舶的引擎的系統 的構造圖。在同圖中，在燃料槽1 〇 〇內是設置有燃料栗 浦1 1 0。在燃料泵浦1 1 ◦與引擎1 2 0之間是用導管 1 3 0連接，在導管1 3 0的途中部則設置有燃料調整閥 1 4 0。讓燃料泵浦1 1 〇產生作用的話，燃料槽1 〇 〇 內的燃料，會從燃料泵浦1 1 0的底部被吸到燃料栗浦 110內，然後通過導管130被輸送到引擎120。當 導管1 3 0內的壓力高於預定値時，燃料調整閥1 4 〇的 溢流閥1 5 0會產生作用讓燃料回到燃料槽1 〇 〇內（箭頭 f )。藉由溢流閥1 5 0的開啓讓導管1 3 0內的壓力降低 。這種燃料供給裝置是揭示在日本實公昭 5 2 — 3 4 5 0 7號公報。 【發明欲解決的課題】 如上述，在將燃料泵浦設置在燃料槽內，的所謂的槽 內規格的燃料供給裝置，是具有如下述的缺點。首先，需 要將燃料泵浦保持在燃料槽內的保持器，也需要用來將該 保持器固定在燃料槽內的固定裝置或螺栓等。結果是，隨 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -4 - 539803 A7 B7 五、發明説明（2 ) 著零件數量的增加，燃料槽的構造也複雜化，且讓製造程 序增加。 (請先閲讀背面之注意事項再填寫本頁) 本發明的目的，鑒於上述習知的課題，要提供一種能 讓燃料槽的構造簡化的燃料槽供給用泵浦裝置。 【用以解決課題的手段】 爲了達成上述目的，本發明的泵浦裝置，其特徵爲： 是具備有：燃料的吸入口、具有用來積存從上述吸入口所 吸入的燃料的燃料積存室的泵浦外殼、形成有泵輪的收容 部與沿著該泵輪的旋轉方向所形成的通路的泵浦殼體、用 來將上述燃料積存室的燃料導引到上述通路的其中一端的 燃料的進入口、設置在上述通路的另一端的燃料的排出口 、以及當連接於上述排出口的高壓管內的壓力在預定値以 上時會開口，來使從上述排出口所排出的燃料回流到上述 燃料積存室的回流通路。 當燃料的壓力上升到預定値以上時，回流通路會開啓 ，來將高壓管內的壓力調節到上述預定値。特別的是，所 經濟部智慧財產局員工消費合作社印製 回流的燃料在燃料積存室會被減壓，會有冷卻燃料的效果 〇 而本發明的特徵爲：是具備有馬達部，該馬達部是由 :與上述泵輪一體設置的場磁鐵、以及藉由上述泵浦殻體 的壁面而處於與流體分離的狀態與上述場磁鐵相對向配置 的電樞所構成。藉由該特徵，由於馬達部的場磁鐵是一體 地形成在泵浦部，所以不需要用來將馬達的輸出傳達到泵 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇X297公釐） -5- 539803 A7 B7 五、發明説明（3 ) 浦部的連結部。 並且本發明的特徵爲··是具備有：設置在上述泵輪的 泵浦側永久磁鐵、藉由上述泵浦殻體的壁面而處於與流體 分離的狀態與上述泵浦側永久磁鐵相對向配置的馬達側永 久磁鐵、以及具有固定著上述馬達側永久磁鐵的轉子的馬 達。箱由該特徵，則可藉由永久磁鐵的磁力來將馬達部的 輸出傳達到泵浦部。 經濟部智慧財產局員工消費合作社印製 【發明實施型態】 以下參照圖面來說明本發明的一種實施型態。 是本發明的一種實施型態的具有燃料泵浦裝置的機 要部分分解側面圖。機車的框架是由：將前端結合 車體即部（圖面左側）的沒有圖示的頭管的主框架1、 主框架1朝斜後方延伸的上部後框架2與下部後框 構成。上邰後框架2是以托架5而結合在主框架1 後框架3疋以托架7結合在主框架1。上部後框架 部後框架3是在車體後方互相結合在一起。 引擎6是配置在主框架1的下方。引擎6是以 、5及托架7被懸掛在主框架1的下部。引擎6與 4、5、7是分別經由螺栓8、9、1 〇而被結合 6是由汽缸頭部1 1、汽缸部1 2、及曲柄部1 3 。在汽缸頭部1 1的進氣孔1 4 ,是結合有朝向車 延伸的進氣管1 5。在進氣管1 5的途中部是設置 噴射閥1 7。 第1圖 車的主 在位於 以及從 架3所 ，下部 2及下 托架4 各托架 。引擎 所構成 體前方 有燃料 (請先閱讀背面之注意事項再填寫本頁)^ 9803 A7 B7 V. Description of the invention (1) [Technical field to which the invention belongs] (Please read the precautions on the back before filling out this page) The present invention relates to a pumping device for fuel supply, and more particularly to a pump device for fuel supply. Fuel that freely falls in a fuel tank above the engine is supplied to a fuel supply pumping device of a fuel injection device. [Knowledge technology] Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Figure 8 is a structural diagram of a system for supplying fuel to the engine of a vehicle or a ship. In the figure, a fuel tank 110 is provided in a fuel tank 100. A fuel pump 1 1 ◦ is connected to the engine 120 by a pipe 130, and a fuel regulating valve 140 is provided in the middle of the pipe 130. If the fuel pump 110 is activated, the fuel in the fuel tank 1000 will be sucked into the fuel pump 110 from the bottom of the fuel pump 110, and then transported to the engine 120 through the duct 130. When the pressure in the conduit 130 is higher than the predetermined pressure, the relief valve 150 of the fuel regulating valve 140 will act to return the fuel to the fuel tank 100 (arrow f). By opening the relief valve 150, the pressure in the duct 130 is reduced. Such a fuel supply device is disclosed in Japanese Utility Model Publication No. 5 2-3 4 5 0 7. [Problems to be Solved by the Invention] As described above, a fuel supply device of a so-called in-tank type in which a fuel pump is installed in a fuel tank has the following disadvantages. First, a holder for holding the fuel pump in the fuel tank is required, and a fixing device or bolt for fixing the holder in the fuel tank is also required. As a result, with the application of the Chinese National Standard (CNS) A4 specification (210X297 mm) -4-539803 A7 B7 for this paper size, the description of the invention (2) increases the number of parts, the structure of the fuel tank is also complicated, and Manufacturing procedures increased. (Please read the cautions on the back before filling this page.) In view of the above-mentioned conventional problems, it is an object of the present invention to provide a fuel tank supply pump device which can simplify the structure of the fuel tank. [Means for Solving the Problems] In order to achieve the above-mentioned object, the pump device of the present invention is characterized by having a fuel suction port and a fuel storage chamber for storing fuel sucked from the suction port. A pump casing, a receiving portion formed with a pump wheel, and a pump housing formed with a passage formed in a direction of rotation of the pump wheel, and a fuel pump for guiding the fuel in the fuel storage chamber to the fuel at one end of the passage An inlet, a fuel discharge port provided at the other end of the passage, and an opening when the pressure in the high-pressure pipe connected to the discharge port is equal to or higher than a predetermined pressure, to return the fuel discharged from the discharge port to the above The return path of the fuel storage chamber. When the fuel pressure rises above a predetermined threshold, the return path will be opened to adjust the pressure in the high-pressure pipe to the predetermined threshold. In particular, the returned fuel printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs will be decompressed in the fuel storage room, and it will have the effect of cooling the fuel. It is composed of a field magnet integrally provided with the pump wheel, and an armature disposed opposite to the field magnet in a state separated from the fluid by a wall surface of the pump housing. With this feature, since the field magnet of the motor unit is integrally formed in the pump unit, it is not necessary to communicate the output of the motor to the pump. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (21 × 297 mm). ) -5- 803 803 A7 B7 V. Description of the invention (3) Connection part of Pu Department. In addition, the present invention is characterized by comprising: a pump-side permanent magnet provided on the pump wheel, and a state separated from the fluid by a wall surface of the pump housing, the pump-side permanent magnet being disposed opposite to the pump-side permanent magnet. A motor-side permanent magnet and a motor having a rotor to which the motor-side permanent magnet is fixed. With this feature, the output of the motor section can be transmitted to the pump section by the magnetic force of the permanent magnet. Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs [Implementation Mode of the Invention] The following describes an implementation mode of the invention with reference to the drawings. It is an exploded side view of an essential part of a fuel pumping device according to an embodiment of the present invention. The frame of the locomotive is composed of a main frame 1 (not shown) with a head pipe connected to the front end of the vehicle body (left side of the drawing), an upper rear frame 2 and a lower rear frame that extend obliquely rearward of the main frame 1. The upper and rear frames 2 are coupled to the main frame 1 with brackets 5 and the rear frame 3 is coupled to the main frame 1 with brackets 7. Upper rear frame The rear frame 3 is joined to each other behind the vehicle body. The engine 6 is disposed below the main frame 1. The engine 6 is suspended from the lower part of the main frame 1 with the brackets 5 and 5. The engines 6 and 4, 5, and 7 are connected via bolts 8, 9, and 10 respectively. 6 is composed of a cylinder head 11, a cylinder portion 12, and a crank portion 13. An intake hole 14 of the cylinder head 11 is combined with an intake pipe 15 extending toward the vehicle. An injection valve 17 is provided in the middle of the intake pipe 15. Figure 1 The owner of the car is located in the 3 shelves, the lower 2 and the lower 4 brackets. There is fuel in front of the engine (please read the precautions on the back before filling this page)
、1T f -6- 539803 A7 B7 經 濟 部 智 慧 財 產 局 消 費 合 社 印 製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐 五、發明説明（ 燃料噴射閥1 7，是以高壓用樹脂管1 8被結合在燃 料栗浦1 9的排出口。在燃料泵浦1 9的吸入口則結合有 朝車體後方延伸的低壓用樹脂管2 〇，該低壓用樹脂管 2 0的端部，是被結合在插通於燃料槽2 1的連結管2 2 。在低壓用樹脂管2 0的途中部是設置有過濾器2 3。燃 料槽2 1是以托架2 4、2 5被結合在上部後框架2上。 在燃料槽2 1的上部，是設置有具有蓋子2 6的燃料供給 □。 燃料槽2 1是配置在燃料泵浦丨9的上方，藉由其落 差（液壓落差），讓燃料槽2 1內的燃料自由落下到燃料栗浦 1 9。用自由落下所供給的燃料會被吸入到燃料泵浦丄9 ，將其壓力提高然後從燃料泵浦1 9排出。從燃料泵浦 1 9所排出的燃料會通過高壓用樹脂管1 8被加壓輸送到 燃料噴射閥1 7。所加壓輸送的燃料會當燃料噴射閥i 7 開啓時噴射到進氣管1 5內，會與空氣一起從進氣孔丄4 被吸入到引擎6內。 這樣藉由將燃料泵浦丨9配置在燃料槽2 1外面，則 與將燃料栗浦安裝在燃料槽內的方式不同，不需要安裝構 件，所以會讓燃料槽的構造簡化。而由於可以將燃料泵浦 1 9接近燃料噴射閥1 7配置，所以可以縮短要求要耐古 壓的高壓用樹脂管i 8。則與將燃料泵浦丨9的馬達部严 漬於燃料來使用的方式不同，不需要使用耐燃料的材料 所以更加大了材料選擇的自由度。 ’ 接下來，來詳細說明燃料泵浦1 9。第2圖是燃料栗 (請先閱讀背面之注意事項再填寫本頁) 539803 A7 B7 五、發明説明（5 ) (請先閲讀背面之注意事項再填寫本頁) 浦1 9的剖面圖，第3圖是第2圖的在a — A位置的剖面 圖。在兩圖中，燃料泵浦1 9具有泵浦殻體（以下只稱作「 殼體」）2 7。該殻體2 7，在中心是具有軸承用凹部 2 7 1，且具有與該軸承用凹部2 7 1同軸心地配置的環 狀凹部2 7 2。在殼體2 7的環狀凹部2 7 2，是收容有 栗輪2 8的周緣部2 8 2。在收容於環狀凹部2 7 2的上 述周緣部2 8 2的內面部是裝有作爲馬達部的場磁鐵的磁 鐵2 9。 在殼體2 7，是覆蓋有泵浦外殼3 〇。泵浦外殼3 0 ，在相對於殻體2 7的側邊是具有軸承用凹部3 〇 1，並 且在殼體2 7的相反側是具有以蓋子覆蓋的燃料積存室 3 0 3 ° 在泵輪2 8的中央部分是裝有旋轉軸2 8 1。旋轉軸 2 8 1，是藉由分別嵌插在設置於殼體2 7的軸承用凹部 2 7 1與設置於泵浦外殻3 0的軸承用凹部3 0 1的軸承 經濟部智慧財產局員工消費合作社印製 3 1、3 2而旋轉自如地被支承著。旋轉軸2 8 1也可以 壓入到泵輪2 8，也可以與泵輪2 8 —體成型。軸承3 1 、3 1可以是金屬軸承的任何一種。 在燃料積存室3 0 3，燃料的吸入口 3 0 4是開口著 ，在該吸入口 3 0 4，是設置有用來結合上述低壓用樹脂 管2 0的管頭3 0 5。在管頭3 0 5的外周，是形成有讓 所結合的上述低壓用樹脂管2 0不容易脫落的段部。 在燃料積存室3 0 3的底部也就是殼體2 7側的壁部 ，是穿設有進入口 3 0 6，該進入口 3 0 6是連繫到殼體 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -8 - 539803 Α7 Β7 五、發明説明（6 ) (請先閱讀背面之注意事項再填寫本頁) 2 7內的通路2 7 3。通路2 7 3是與旋轉軸2 8 1形成 在同軸心，其端部也就是進入口 3 0 6的另一端爲排出口 307。在排出口 307，是設置有用來結合上述高壓用 樹脂管1 8的管頭3 0 8。在管頭3 0 8的外周，是形成 有用來固定讓將上述高壓用樹脂管1 8結合在該管頭 3〇8的連接器不會脫落的段部。 在上述排出口 3 0 7與燃料積存室3 0 3之間是設置 有調節室3 3。調節室3 3是以開口 3 3 1連繫到排出口 3 0 7，是以側部開口 3 3 2連繫到上述燃料積存室 3 0 3。在調節室3 3是設置有用來開閉開口 3 3 1的閥（ 溢流閥）3 4，該溢流閥3 4是滑動自如地被支承在保持（螺 合）在調節室3 3的栓部（螺栓）3 5。在栓部3 5與溢流閥 3 4之間是中介安裝有線圏彈簧3 6，來將溢流閥3 4朝 向上述開口 3 3 1側彈壓。 經濟部智慧財產局員工消費合作社印製 在形成上述殼體2 7的凹部2 7 1的轂部2 7 4是嵌 插有筒狀導引部3 7，在該導引部3 7是設置有鐵芯3 8 與捲繞於鐵芯3 8的線圈3 9。該鐵芯3 8與線圈3 9是 當作電樞，是與上述泵輪2 8的磁鐵2 9成對來構成馬達 部Μ。在導引部3 7的外周端部是裝有構成在電樞產生旋 轉磁場的電路的基板4 0。而在導引部3 7的內周端部， 是嵌插有馬達外殼4 1。 雖然線圏3 9與基板4 0是中介著導引部3 7來固定 在殼體2 7的轂部2 7 4，並不限於此，也可以將鐵芯 3 8的外周嵌合固定到上述環狀凹部2 7 2的壁面內周 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐) ' _ ~ -9- 539803、 1T f -6- 539803 A7 B7 Printed by the Consumers ’Association of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is printed in accordance with Chinese National Standards (CNS) A4 specifications (210X297 mm) 5. Description of the invention (Fuel injection valve 17 is for high pressure use The resin pipe 18 is connected to the exhaust port of the fuel pump 19. The suction port of the fuel pump 19 is connected to a low-pressure resin pipe 20 extending to the rear of the vehicle body. The low-pressure resin pipe 20 is at the end. The part is a connecting pipe 2 2 inserted into the fuel tank 21. A filter 2 3 is provided in the middle of the low-pressure resin pipe 20. The fuel tank 2 1 is a bracket 2 4, 2 5 It is coupled to the upper rear frame 2. On the upper part of the fuel tank 21, a fuel supply □ provided with a cover 26 is provided. The fuel tank 21 is arranged above the fuel pump 9 and its drop (hydraulic pressure) Drop), let the fuel in the fuel tank 21 drop freely to the fuel pump 19. The fuel supplied by the free fall is sucked into the fuel pump 丄 9, its pressure is increased, and then the fuel pump 19 is discharged. The fuel discharged from the fuel pump 19 is passed through the high-pressure resin pipe 18 Pressurized and delivered to the fuel injection valve 17. The pressurized and delivered fuel is injected into the intake pipe 15 when the fuel injection valve i 7 is opened, and is sucked into the engine 6 together with air from the intake hole 丄 4 By disposing the fuel pump 9 outside the fuel tank 21 in this way, unlike the method of installing the fuel pump in the fuel tank, there is no need to install components, so the structure of the fuel tank is simplified. The fuel pump 19 is arranged close to the fuel injection valve 17 so that the high-pressure resin tube i 8 required to withstand ancient pressure can be shortened. This is different from the way in which the motor part of the fuel pump 9 is heavily stained with fuel You do n’t need to use fuel-resistant materials, so you have more freedom in material selection. '' Next, the fuel pump 19 will be described in detail. Figure 2 is the fuel pump (please read the precautions on the back before filling this page) 539803 A7 B7 V. Description of the invention (5) (Please read the precautions on the back before filling in this page) The cross-sectional view of Pu 19, Figure 3 is the cross-sectional view of Figure 2 at a-A position. The fuel pump 19 has a pump casing (hereinafter (Referred to as "housing") 2 7. This housing 2 7 has a bearing recess 2 7 1 in the center and an annular recess 2 7 2 arranged coaxially with the bearing recess 2 7 1. The ring-shaped recessed portion 2 7 2 of the body 27 is a peripheral portion 2 8 2 containing the chestnut wheel 2 8. The inner surface portion of the peripheral portion 2 8 2 received in the ring-shaped recessed portion 2 7 2 is provided as a motor portion. The field magnet magnet 2 9. The casing 27 is covered with a pump casing 3 0. The pump casing 3 0 has a bearing recess 3 〇1 on the side opposite to the casing 27, and On the opposite side of the housing 2 7 is a fuel storage chamber 3 0 3 ° covered with a cover. In the central part of the pump wheel 2 8 is a rotating shaft 2 8 1. The rotating shaft 2 8 1 is an employee of the Intellectual Property Office of the Ministry of Economic Affairs, which is inserted into the bearing recess 2 7 1 provided in the housing 2 7 and the bearing recess 3 0 1 provided in the pump housing 30. The consumer cooperatives print 3 1 and 3 2 and are rotatably supported. The rotating shaft 2 8 1 may be pressed into the pump wheel 2 8 or may be integrally formed with the pump wheel 2 8. The bearings 3 1 and 31 may be any of metal bearings. In the fuel storage chamber 303, a fuel suction port 304 is opened, and the suction port 304 is provided with a pipe head 305 for coupling the low-pressure resin pipe 20 described above. A section is formed on the outer periphery of the tube head 305 so that the above-mentioned low-pressure resin tube 20 to be bonded cannot easily fall off. At the bottom of the fuel storage chamber 3 0 3, which is the wall portion of the casing 2 7 side, is an entry opening 3 06, which is connected to the casing. The paper size applies Chinese national standards ( CNS) A4 specification (210X297mm) -8-539803 Α7 Β7 V. Description of invention (6) (Please read the precautions on the back before filling this page) 2 7 3 in the passage. The passage 2 7 3 is formed coaxially with the rotation axis 2 8 1, and an end portion of the passage 2 7 3 is an inlet port 306 and the other end is a discharge port 307. The discharge port 307 is provided with a pipe head 308 for joining the high-pressure resin pipe 18 described above. A section is formed on the outer periphery of the pipe head 308 for fixing a connector that prevents the connector for joining the high-pressure resin pipe 18 to the pipe head 308 from falling off. An adjustment chamber 33 is provided between the above-mentioned discharge port 3 07 and the fuel accumulation chamber 3 03. The adjustment chamber 3 3 is connected to the discharge port 3 0 7 through an opening 3 3 1, and is connected to the fuel storage chamber 3 0 3 through a side opening 3 3 2. The adjustment chamber 3 3 is provided with a valve (overflow valve) 3 4 for opening and closing the opening 3 3 1, and the relief valve 34 is supported by a bolt that is slidably held (screwed) in the adjustment chamber 33. (Bolt) 3 5. Between the plug portion 35 and the relief valve 34, a wire spring spring 3 6 is interposed to urge the relief valve 34 toward the opening 3 31 side. The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed on the hub 2 7 4 forming the recess 2 7 1 of the above-mentioned case 2 7 is a cylindrical guide 3 7 inserted therein, and the guide 37 is provided with The iron core 3 8 and the coil 3 9 wound around the iron core 3 8. The iron core 38 and the coil 39 are used as an armature, and they form a motor unit M by being paired with the magnet 29 of the pump impeller 28. At the outer peripheral end portion of the guide portion 37 is a substrate 40 on which a circuit for generating a rotating magnetic field is generated in the armature. A motor case 41 is inserted into an inner peripheral end portion of the guide portion 37. Although the coils 39 and the substrate 40 are fixed to the hub 2 7 4 of the housing 2 7 with the guide portion 37 interposed therebetween, the present invention is not limited to this, and the outer periphery of the iron core 38 may be fitted and fixed to the above. The inner circumference of the wall surface of the ring-shaped recess 2 7 2 This paper applies the Chinese National Standard (CNS) A4 specification (210 × 297 mm) '_ ~ -9- 539803
五、發明説明（7 2 7 2 a。 (請先閱讀背面之注意事項再填寫本頁) 在上述構造中，自然落下而從燃料槽2 i到達燃料栗 浦1 9關料會積存翅料積存室3 Q 3。而通電到線圏 3 9讓其磁場作用到作爲場磁鐵的磁鐵2 9的話，泵輪 2 8會朝‘頭R的方向旋轉。這樣一來，積存在燃料積存 室3 0 3的燃料，會從進入口 3 〇 6進入到殼體2 7內， 通過通路2 7 3而被加壓，從排出口 3 〇 7側排出。從排 出口 3 0 7被排出的燃料，會經由高壓用樹脂管1 8而被 輸送到燃料噴射閥1 7。 用來將輸送到燃料噴射閥1 7的燃料的壓力保持在預 定値的調節機構會產生作用。也就是說，當高壓樹脂管 1 8內的壓力到達高於溢流閥3 4的開啓壓力的數値時， 彈壓溢流閥3 4的線圈彈簧3 6會被壓縮，溢流閥3 4會 被推起，開口 3 3 1會打開。如此一來，高壓用樹脂管 1 8內的燃料會通過開口 3 3 1，流入到調節室3 3，而 會從側部開口 3 3 2回到燃料積存室3 0 3。 經濟部智慧財產局8工消費合作社印製 藉由調節機構讓燃料回流的話，不只是可將高壓用樹 脂管1 8內的壓力維持在預定値，且會由於減壓而冷卻回 流到燃料積存室3 0 3內的燃料。於是，就可抑制由於燃 料的高溫而導致產生汽濕現象。 第4圖是顯示燃料泵浦1 9的第一變形例的剖面圖， 與第1圖、第2圖相同的圖號就是相同或同等的部分。在 該第一變形例中，在固定於泵輪的作爲場磁鐵的磁鐵的外 周是配設有作爲電樞的鐵芯或線圏。在第4圖中，在泵輪 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -10- 539803 A7 ______B7 五、發明説明（8 ) (請先閱讀背面之注意事項再填寫本頁} 2 8是形成有轂部2 8 3。在轂部2 8 3的外周是安裝有 勵磁用的磁鐵2 9。而在殼體2 7與泵浦外殼3 0，是設 置有軸部275、309，泵輪28是藉由這些軸部 2 7 5、3 0 9而經由軸承3 1、3 2而旋轉自如地被支 承著。 在殼體2 7的中央突部2 7 6是嵌插固定有導引部 3 7，在導引部3 7的外周是設置有鐵芯3 8與捲繞在鐵 '芯3 8的線圏3 9。在導引部3 7的端部是設置有基板 4 0。第一變形例的燃料泵浦1 9，是如第1圖、第2圖 所記載的構造相同地作動，所以省略其動作的說明。藉由 該第一變形例，與將磁鐵配置在泵輪的周緣部的方式不相 同，可以縮小燃料泵浦1 9全體的直徑。 經濟部智慧財產局員工消費合作社印製 第5圖是顯示燃料泵浦1 9的第二變形例的剖面圖。 在上述的例子中，是將馬達部的轉子與泵浦部的泵輪作成 二體。另一方面，在該第二變形例中，是將馬達部的轉子 與泵浦部的泵輪作成不同的構造，以磁鐵耦合器結合。在 第5圖中，馬達部Μ是具有筒狀的殼體4 2，在其內周部 是配設有磁鐵4 3。殼體4 2的兩端是以蓋子4 4、4 5 所覆蓋。在蓋子4 4與4 5，是分別嵌裝有軸承4 6、 4 7，馬達部Μ的轉子4 8，是藉由軸承4 6、4 7而經 由軸部5 1旋轉自如地被支承著。在轉子4 8，是設置有 鐵芯4 9與捲繞於鐵芯4 9的線圈5 0。在蓋子4 5，是 固定有供電端子5 2、5 3，從供電端子5 2、5 3通過 電刷5 4來供電到線圏5 0。 本紙張尺度適用中國國家標準（CNS ) Α4規格（210 X 297公釐） -11 - 539803 Α7 Β7 五、發明説明（9 ) 在馬達Μ的轉子4 8的軸部5 1的端部是安裝有具有 動力傳達用的磁鐵6 0的板部5 5。在馬達部Μ的殼體 (請先閱讀背面之注意事項再填寫本頁) 4 2，是設置有用來覆蓋殻體4 2的端部與板部5 5的馬 達外殻5 6。在馬達外殼5 6，是設置有泵浦外殻5 7 ° 在泵浦外殼5 7與馬達外殼5 6之間的空間，是設置有栗 浦部Ρ的泵輪5 8，該泵輪5 8的旋轉軸7 6是藉由分別 設置於泵浦外殼5 7與馬達外殼5 6的軸承5 9、6 1所 支承著。在泵浦部Ρ的泵輪5 8，對應於設置在上述馬達 部Μ側的板部5 5的磁鐵6 0，安裝有把磁極設定成會吸 引該磁鐵6 0的磁鐵6 2。 泵浦外殼5 7，除了在沒有調節機構的方面與第1圖 、第2圖的構造不相同之外，是具有相同的機能。於是， 供電到端子5 2、5 3來讓馬達部Μ產生作用的話，泵浦 部Ρ的栗輪5 8會與以磁鐵6 0、6 2的磁力相互吸引的 板部5 5 —體旋轉，形成於泵浦外殻5 7的燃料積存室 5 7 1的燃料會被輸送到燃料噴射閥1 7。 經濟部智慧財產局員工消費合作社印製 第6圖是顯示燃料泵浦1 9的第三變形例的剖面圖。 在上述的例子中，在馬達部是使用電刷供電機構，在該第 三變形例中，是將馬達部Μ作成無電刷式馬達。在第6圖 中，在馬達部Μ的殼體6 3，是固定了筒狀的導引部，在 該導引部6 4的外周是設置有鐵芯6 5與捲繞在鐵芯6 5 的線圈6 6。在導引邰6 4的內周是嵌插固定有軸承6 7 、6 8，以該軸承6 7、6 8支承著馬達部Μ的轉子6 9 。轉子6 9是形成爲碗狀，是具有：用來固定動力傳達用 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） ^ -12- 539803 Α7 _____ Β7 五、發明説明（10 ) 的磁鐵6 0的輪轂部6 9 1、與將勵磁用磁鐵7 0保持在 內周的周緣部6 9 2。 (請先閱讀背面之注意事項再填寫本頁) 在殻體6 3是固定有蓋子7 1。蓋子7 1是馬達Μ的 蓋子，同時會與泵浦外殼5 7共同作用形成用來收容泵浦 部Ρ的泵輪5 8的空間。 在第三變形例，通電到線圏6 6來讓馬達部Μ產生作 用的話，磁鐵6 ◦、6 2的磁力會互相吸引讓轉子6 9與 泵浦部Ρ的泵輪5 8 —體旋轉，藉由泵浦外殼5 7所形成 的燃料積存室5 7 1的燃料會被輸送到燃料噴射閥1 7。 經濟部智慧財產局員工消費合作社印製 第7圖是顯示燃料泵浦1 9的第四變形例的剖面圖， 與第三變形例相同的圖號是相同或同等部分。在該第四變 形例中，馬達部Μ，是具有：碗狀的殼體7 2、與覆蓋在 殼體7 2的蓋子7 3。在蓋子7 3的輪轂7 3 1的內周是 嵌插有軸承6 7、6 8，是以這些軸承6 7、6 8旋轉自 如地支承轉子7 4 2。轉子7 4 2是由軸部7 4 1與固定 在軸部7 4 1的其中一端的板部所構成，是將勵磁用磁鐵 6 9保持在內周面。在軸部7 4 1的另一端，是設置有相 對向於泵浦部Ρ的動力傳達用的磁鐵6 0。 在蓋子7 3是固定有泵浦殼體7 5。在泵浦殼體7 5 是覆蓋有泵浦外殼5 7，來形成旋轉自如地收容泵浦部Ρ 的泵輪5 8的空間。 在第四變形例中，通電到線圈6 6來讓馬達部Μ產生 作用的話，磁鐵6 0、6 2的磁力會互相吸引讓轉子7 4 2與泵浦部Ρ的泵輪5 8 —體旋轉，藉由泵浦外殼5 7所 本紙張尺度適用中國國家標準（CNS) Α4規格（2ΐ〇χ297公釐） -13- 『39803 A7 B7 五、發明説明（11 ) 形成的燃料積存室5 7 1的燃料會被輸送到燃料噴射閥 17。 【發明效果】 由以上的發明可了解，藉由申請專利範圍第1項的發 明，可將連繫於排出口的高壓配管內的壓力維持在適合燃 料噴射的壓力。而由於回到燃料積存室的燃料會被冷卻， 所以可以防止汽濕現象。 藉由申請專利範圍第2項的發明，由於是將馬達部的 轉子作成與泵浦部一體，所以不需要將馬達部的輸出連繫 到泵浦部的機構，而可讓燃料泵浦的構造簡單化。 藉由申請專利範圍第3項的發明，由於是藉由永久磁 鐵的磁力來讓馬達部的輸出傳達到泵浦部，所以藉由磁力 的設定則可以防止馬達部超過負荷。 【圖面說明】 第1圖是本發明的一種實施型態的具有燃料泵浦裝置 的機車的主要部分分解側面圖。 第2圖是燃料泵浦的剖面圖。 第3圖是第2圖的在A—A位置的剖面圖。 第4圖是顯示第一變形例的燃料泵浦的剖面圖。 第5圖是第二變形例的燃料泵浦的剖面圖。 第6圖是第三變形例的燃料泵浦的剖面圖。 第7圖是第四變形例的燃料泵浦的剖面圖。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 丨 --- (請先閱讀背面之注意事項再填寫本頁) 訂 f 經濟部智慧財產局員工消費合作社印製 -14- 539803 A7 B7 五、發明説明（12 ) 第8圖是傳統的燃料供給系統的顯示圖。 (請先閲讀背面之注意事項再填寫本頁) 【圖號說明】 1 :主框架 6 :引擎 1 4 :進氣孔 1 5 :進氣管 1 7 :燃料噴射閥 1 8 :高壓用樹脂管 19:燃料泵浦 2 0 :低壓用樹脂管 2 1 :燃料槽 2 3 :過濾器 2 8 :泵輪 2 9 :場磁鐵 3 3 :調節室 3 4 :溢流閥 經濟部智慧財產局員工消費合作社印製 3〇3 :燃料積存室 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -15-V. Description of the invention (7 2 7 2 a. (Please read the precautions on the back before filling in this page) In the above structure, it will naturally fall from the fuel tank 2 i to the fuel Kuriura 19. The material will accumulate fin material. Chamber 3 Q 3. When the coil 3 9 is energized and its magnetic field is applied to the magnet 2 9 which is a field magnet, the pump wheel 28 will rotate in the direction of the head R. In this way, the fuel accumulation chamber 3 0 is accumulated. The fuel of 3 enters the housing 27 from the inlet 3 06, is pressurized through the passage 2 73, and is discharged from the outlet 3 07. The fuel discharged from the outlet 3 07 It is conveyed to the fuel injection valve 17 through the high-pressure resin tube 18. The adjustment mechanism for maintaining the pressure of the fuel delivered to the fuel injection valve 17 at a predetermined pressure is effective. That is, when the high-pressure resin tube When the pressure in 18 reaches a number that is higher than the opening pressure of the relief valve 3 4, the coil spring 36 of the pressure relief valve 3 4 will be compressed, the relief valve 3 4 will be pushed up, and the opening 3 3 1 It will open. In this way, the fuel in the high-pressure resin tube 18 will flow through the opening 3 3 1 and flow into the adjustment chamber 3 3 And will return to the fuel storage chamber 3 3 2 from the side opening 3 3 2. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, 8th Industrial Cooperative Cooperative, if the fuel is returned by the adjustment mechanism, it is not only the high-pressure resin tube 1 8 The pressure is maintained at a predetermined level, and the fuel that is returned to the fuel accumulation chamber 3 0 3 is cooled due to the decompression. Therefore, the phenomenon of vaporization due to the high temperature of the fuel can be suppressed. Figure 4 shows the fuel pump The cross-sectional view of the first modification of 19 is the same as or equivalent to the figure number of FIGS. 1 and 2. In this first modification, the magnets of the field magnets fixed to the pump wheel are used as field magnets. The outer periphery is equipped with an iron core or wire reel as an armature. In Figure 4, the paper size of the pump wheel applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -10- 539803 A7 ______B7 V. Invention Explanation (8) (Please read the precautions on the back before filling out this page} 2 8 is formed with a hub 2 8 3. The outer periphery of the hub 2 8 3 is equipped with a magnet 2 9 for excitation. The body 27 and the pump housing 30 are provided with shaft portions 275 and 309, and the pump wheel 28 is These shaft portions 2 7 5 and 3 0 9 are rotatably supported via bearings 3 1 and 32. The central protrusion 2 7 6 of the housing 2 7 is fitted with a guide portion 3 7 inserted and fixed, An iron core 38 and a wire coil 39 wound around the iron core 38 are provided on the outer periphery of the guide portion 37. A substrate 40 is provided on an end portion of the guide portion 37. First Modification The fuel pump 19 operates in the same manner as the structure described in FIG. 1 and FIG. 2, and therefore description of the operation is omitted. With this first modification, the diameter of the entire fuel pump 19 can be reduced, unlike the manner in which the magnet is arranged on the peripheral edge portion of the pump impeller. Printed by the Employees' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs FIG. 5 is a cross-sectional view showing a second modification of the fuel pump 19. In the above example, the rotor of the motor unit and the pump wheel of the pump unit are formed as two bodies. On the other hand, in the second modified example, the rotor of the motor section and the pump wheel of the pump section have different structures and are coupled by a magnet coupler. In Fig. 5, the motor portion M has a cylindrical case 4 2 and a magnet 4 3 is disposed on an inner peripheral portion thereof. Both ends of the case 4 2 are covered with covers 4 4, 4 5. Bearings 4 4 and 4 5 are respectively fitted with bearings 4 6 and 4 7, and the rotor 48 of the motor portion M is rotatably supported by the shaft portion 51 via the bearings 4 6 and 4 7. The rotor 48 is provided with an iron core 4 9 and a coil 50 wound around the iron core 4 9. On the cover 4 5, the power supply terminals 5 2 and 5 3 are fixed, and the power is supplied from the power supply terminals 5 2 and 5 3 to the wire coil 5 0 through the brush 5 4. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -11-539803 Α7 Β7 V. Description of the invention (9) The rotor 5 of the rotor M of the motor 4 8 is mounted on the end The plate portion 5 5 includes a magnet 60 for power transmission. The housing of the motor section M (please read the precautions on the back before filling in this page) 4 2 is a motor case 5 6 provided to cover the end of the housing 4 2 and the plate section 5 5. In the motor casing 5 6, a pump casing 5 7 is provided. The space between the pump casing 5 7 and the motor casing 5 6 is provided with a pump wheel 5 8 of the pump part P. The pump wheel 5 8 The rotating shaft 76 is supported by bearings 5 9 and 61 provided in the pump housing 57 and the motor housing 56 respectively. A pump wheel 58 of the pumping section P is provided with a magnet 62 corresponding to the magnet 60 of the plate section 55 provided on the motor section M side, and a magnet 62 having a magnetic pole set to attract the magnet 60 is attached. The pump housing 57 has the same function except that the structure of the pump housing 57 is different from that of Figs. 1 and 2 in that there is no adjustment mechanism. Therefore, if power is supplied to the terminals 5 2, 5 3 to make the motor portion M function, the chestnut wheel 58 of the pump portion P and the plate portion 5 5 attracted to each other by the magnetic force of the magnets 60 and 62 will rotate. The fuel formed in the fuel storage chamber 5 7 1 of the pump casing 5 7 is sent to the fuel injection valve 17. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs FIG. 6 is a cross-sectional view showing a third modification of the fuel pump 19. In the above-mentioned example, a brush power supply mechanism is used in the motor section. In the third modification, the motor section M is a brushless motor. In FIG. 6, a cylindrical guide portion is fixed to a housing 6 3 of the motor portion M, and an iron core 6 5 and a winding around the iron core 6 5 are provided on the outer periphery of the guide portion 64. The coil 6 6. Bearings 6 7 and 6 8 are inserted and fixed on the inner periphery of the guide shaft 64, and the rotors 6 9 of the motor section M are supported by the bearings 6 7 and 6 8. The rotor 6 9 is formed in a bowl shape and has the following dimensions: the paper size for fixing power transmission is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) ^ -12- 539803 Α7 _____ Β7 V. Description of the invention (10) The hub portion 6 9 1 of the magnet 60 and the peripheral edge portion 6 9 2 holding the excitation magnet 70 in the inner periphery. (Please read the precautions on the back before filling out this page) The cover 6 1 is fixed to the case 6 3. The cover 71 is a cover of the motor M, and at the same time, it cooperates with the pump casing 57 to form a space for accommodating the pump wheel 58 of the pump section P. In the third modification, if the electric current is applied to the coil 圏 6 to make the motor section M work, the magnetic forces of the magnets 6 ◦ and 6 2 will attract each other to rotate the rotor 6 9 and the pump wheel 5 8 of the pump section P. The fuel of the fuel accumulation chamber 5 7 1 formed by the pump casing 5 7 is delivered to the fuel injection valve 17. Printed by the Employees' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs FIG. 7 is a cross-sectional view showing a fourth modification of the fuel pump 19, and the same drawing number as the third modification is the same or equivalent. In this fourth modification, the motor portion M is provided with a bowl-shaped case 7 2 and a cover 7 3 covering the case 7 2. Bearings 6 7, 6 8 are inserted into the inner periphery of the hub 7 3 1 of the cover 7 3, and the rotors 7 4 2 are rotatably supported by these bearings 6 7, 6 8. The rotor 7 4 2 is composed of a shaft portion 7 4 1 and a plate portion fixed to one end of the shaft portion 7 4 1, and holds the excitation magnet 6 9 on the inner peripheral surface. At the other end of the shaft portion 7 4 1, a magnet 60 for transmitting power opposed to the pump portion P is provided. A pump housing 75 is fixed to the cover 7 3. The pump casing 7 5 is covered with a pump casing 57 to form a space rotatably accommodating the pump wheel 58 of the pump portion P. In the fourth modification, if the current is applied to the coil 66 to cause the motor portion M to act, the magnetic forces of the magnets 60 and 62 will attract each other to rotate the rotor 7 4 2 and the pump wheel 5 8 of the pump portion P as a single body. With the pump casing 5 7 paper size applicable to the Chinese National Standard (CNS) A4 specification (2ΐ〇χ297 mm) -13- "39803 A7 B7 V. Description of the invention (11) fuel storage chamber 5 7 1 The fuel is delivered to the fuel injection valve 17. [Effects of the Invention] From the above invention, it can be understood that the pressure in the high-pressure pipe connected to the discharge port can be maintained at a pressure suitable for fuel injection by the invention in the first patent application scope. Since the fuel returned to the fuel accumulation chamber is cooled, the phenomenon of vapor and humidity can be prevented. With the invention in the second scope of the patent application, since the rotor of the motor unit is integrated with the pump unit, there is no need to connect the output of the motor unit to the mechanism of the pump unit, and the structure that allows the fuel to be pumped simplify. According to the invention in the third scope of the patent application, since the output of the motor section is transmitted to the pump section by the magnetic force of the permanent magnet, the setting of the magnetic force can prevent the motor section from exceeding the load. [Description of Drawings] Fig. 1 is an exploded side view of a main part of a locomotive having a fuel pump device according to an embodiment of the present invention. Fig. 2 is a sectional view of a fuel pump. Fig. 3 is a cross-sectional view at the AA position in Fig. 2. Fig. 4 is a sectional view showing a fuel pump according to a first modification. Fig. 5 is a sectional view of a fuel pump according to a second modification. Fig. 6 is a cross-sectional view of a fuel pump according to a third modification. Fig. 7 is a sectional view of a fuel pump according to a fourth modification. This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) 丨 --- (Please read the notes on the back before filling out this page) Order f Printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economic Affairs-14- 539803 A7 B7 V. Description of Invention (12) Figure 8 is a display diagram of a conventional fuel supply system. (Please read the precautions on the back before filling this page) [Illustration of drawing number] 1: Main frame 6: Engine 1 4: Air inlet 15: Air inlet pipe 17: Fuel injection valve 18: High pressure resin pipe 19: Fuel pump 2 0: Resin tube for low pressure 2 1: Fuel tank 2 3: Filter 2 8: Pump wheel 2 9: Field magnet 3 3: Regulating room 3 4: Relief valve Employees ’Intellectual Property Bureau of the Ministry of Economy Printed by the cooperative 303: Fuel storage room The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) -15-