567280 玖、發明說明 【發明所屬之技術領域】 本發明關於通過燃料泵吸入燃料槽內的燃 料泵升壓的燃料經在燃料分配管上安裝的燃 燃機供給的燃料噴射裝置，其中尤其是關於 此爲標準的三輪車，通用內燃機等中使用的 置，而且，作爲燃料泵，使用由柱塞、吸入 出側止回閥構成的泵部由螺線管部產生的磁 泵。 【先前技術】 作爲兩輪車用的燃料供給裝置目前使用如 化器c。 即’氣化器c包含具有貫通內部的吸氣路 氣路5 0的節流閥5 1的氣化器主體5 2 ;配置 5 2的下方、形成浮子室5 3的浮子室主體5 4 53內形成一定液面的閥座54、浮標閥55、策 定液面控制裝置F。 T是在內部貯留燃料的燃料槽。在其上方| 孔T 1，在底部T2形成用於插入後述的燃料界 插入孔T3。 該插入孔T3是穿設由底部T2向下方突出 T4，插入孔T3通過插入孔筒部T4內，在燃 T2上開口。 燃料活栓K通過轉換閥K3轉換流入路K 1 312/發明說明書(補件)/92-03/91136530 料，對通過燃 料噴射閥向內 在二輪車及以 燃料噴射裝 側止回閥，排 力驅動的電磁 圖7所示的氣 5 0和開閉吸 在氣化器主體 ;由在浮子室 2標56構成的 圍口形成給油 〒栓（cock)K的 的插入孔筒部 料槽T的底部 和流出路K2, 7 567280 連通及遮斷流入路Κ 1和流出路K2。 而且’包含燃料活栓Κ的流入路Κ 1的筒部Κ4插入到燃 料槽Τ的插入孔Τ3內固定，另一方面，燃料活栓κ的流 出路Κ2經燃料管57在閥座54上連接配置。 如果根據以上所述，操作燃料活栓κ的轉換閥Κ3，連通 保持流入路Κ 1和流出路Κ2，則在燃料槽τ內的燃料經流 入路Κ1，流出路Κ2，燃料管57達到氣化器c的閥座54 上，該燃料供給浮子室5 3內。而且，如果在浮子室5 3內 形成一定的燃料液面，則浮標5 6使浮子閥5 5向上運動， 關閉閥座5 4，停止從燃料管5 7向浮子室5 3內的燃料供 給，由此可以經常地控制浮子室5 3內在一定液面。 現在，從防止地球溫暖化，限制有害氣體的排放，節能 觀點出發，從通過氣化器控制燃料的觀點出發，在二輪車 內也使用有燃料噴射閥的燃料噴射裝置。 在此，在燃料噴射裝置中用電磁泵向燃料噴射閥供給燃 料槽內燃料的燃料泵裝置的第1例在日本特許第309 8 1 66 號公報上公開（元件符號用圖中的）。 據此，在燃料槽1的上面1 a上穿設開口部丨C，在燃料 槽1的上面1 a配置由電磁泵構成的燃料泵主體2 1，以便 關閉該開口部1 C。 而且，從燃料泵主體2 1向下方伸延的吸入管2 1 a向燃料 槽1的底部1 b開口。 燃料泵主體21在燃料槽1的上面la上通過2只安裝螺 栓23、緊固螺母24緊固。 8 312/發明說明書(補件)/92-03/91136530 50 用電磁m的燃料噴射裝置的第2例在日本特開 2〇〇1- 1 407 3 3號公報上公開（元件符號用圖中的）。 據此’柱塞泵50配置在燃料槽4〇的下方，柱塞栗 的吸入路經篩檢程式1 4〇在燃料槽4〇底部上由配管$ 柱塞栗5 0的排出路也由配管連接在裝著燃料噴射閥 燃料分配管上。 燃料分配管是配置壓力調整器的，壓力調整器的燃 流管150與燃料槽40的底部連接，在燃料回流管15〇 動的燃料返回到燃料槽40內。 如果根據這樣的燃料栗裝置的第1例，則因爲在燃 的上面有必要穿設與給油孔不同的開口部，所以不能 不動地使用現有氣化器的燃料供給裝置中使用的燃料 即’有必要在燃料槽的上面穿設新的開口部，此外， 關閉在現有的底部開口的插入孔。 尤其是二輪車用的燃料槽，從輕量化.，設計自由度 度出發，多用合成樹脂材料，通過注射模塑成型製造 槽’在這樣的燃料槽上設置新的開口部，需要在金屬 準備與開口部相當的突起部。與雕刻金屬模、在製品 成突出部相比較，金屬模修改不容易。 電磁泵配置在燃料槽上面，在電磁泵內部形成的泵 吸入管向燃料槽底部開口，如果這樣，則在燃料槽內 料液面變位時，在電磁泵的初期驅動時，燃料槽內的 在到達電磁泵的泵部時產生量差，不理想。 尤其是在燃料槽內的燃料少的狀態下，爲了燃料到 312/發明說明書(補件)/92·〇3/9113653〇 妻接， 30的 料回 內流 料槽 原封 槽。 需要 的角 燃料 模上 上形 部經 的燃 燃料 達泵 9 567280 部要花費時間。 在上述中，內燃機停止時，在吸入管內形成大體與燃料 槽內的燃料液面大體相同高度的液面，該液面與處於其上 方的泵部之間存在燃料未滿的空氣部分，在燃料槽內的燃 料少的狀態下，前述空氣部分較多。 據此，在電磁泵的驅動初期，擔心前述吸入管內的空氣 部分重複壓縮，擔心阻塞電磁泵的排出回應性。 電磁泵通過螺栓和螺母安裝到燃料槽上，由此，螺栓的 六角部分或螺母的任一方，需要向燃料槽的內方配置，不 能提高電磁泵向燃料槽的安裝操作性。 如果根據現有的第2例，則柱塞泵是與燃料槽分開地配 置的，據此，在燃料槽附近等找到固定部，需要在該固定 部上安裝、固定柱塞泵，需要準備特別的安裝構件，安裝 性差。如果根據前述，在燃料槽和燃料分配管的空間部分， 需要找到用於配置柱塞泵的空間部分。尤其是，如二輪車 的空間有限，柱塞泵的配置自由度受到限制。 在燃料槽的底部是連接壓力調整器的燃料回流管，不能 原封不動地用氣化器的燃料供給裝置中的燃料槽。即需要 在燃料槽上重新穿設用於連接燃料回流管的開口。 因爲柱塞泵偏離燃料槽配置，所以柱塞泵需要用配管與 燃料槽連接。據此，必須準備配管。並且，需要在柱塞栗 上連接配管的一端，而把配管的另一端連接到燃料槽，增 加了部件個數和安裝工數，阻礙了造價降低。 【發明內容】 10 312/發明說明書(補件)/92-03/91136530 567280 本發明的二輪車燃料供給裝置的電磁泵裝置是鑒於前 述不合適的情況而提出的，其目的在於提供可以使用在現 有的氣化器的燃料供給裝置內使用的燃料槽的電磁泵裝 » °並且提供在電磁泵裝置和燃料槽之間的配管連接以及 壓力調整器的燃料回流通路和燃料槽之間的配管連接容易 的電磁泵裝置。另外’還提供對二輪車載置性卓越的電磁 聚裝置。還提供不對燃料槽內的燃料液面變化產生影響， 經常地進行穩定的燃料供給且回應性優良的電磁泵裝置。 本發明的二輪車用燃料供給裝置的電磁泵，爲了達到前 述目的，在通過電磁泵使燃料槽內燃料升壓，將該升壓的 燃料提供給在燃料分配管內安裝的燃料噴射閥上的二輪車 用燃料供給裝置中，其第1特徵爲， 泵體包含向上方伸延的插入筒部，和在插入筒部的側方 配置的安裝凸緣部， 在前述安裝凸緣上安裝著螺線管部， 在泵體內包含通過螺線管部驅動的柱塞和由吸入側止 回閥和排出側止回閥構成的泵部。 連接在前述吸入側止回閥的泵吸入路通過插入筒部 內，在插入筒部上端部開口， 通過在燃料槽底部上開口的插入孔內插入配置插入筒 部，在燃料槽上安裝泵體。 本發明除了前述第1特徵之外還有第2特徵，即，在前 述泵體的插入筒部上穿設處於插入筒部內向著插入筒部的 上端面開口的第2燃料通路。 11 312/發明說明書(補件)/92-03/91136530 567280 使前述第2燃料通路與從電磁泵裝置排出的燃料壓力調 壓到預定壓力的壓力調整器的回流燃料通路連接。 本發明除了前述第1及第2特徵之外還有第3特徵，即， 在前述泵吸入路或第2燃料通路的任一方上配置可以開閉 這些通路的排放構件。 本發明除了前述第1特徵之外還有第4特徵，即，在前 述泵體的插入筒部的上端面上，於上端面的投影面內配置 與泵吸入路相連的筒狀過濾構件。 本發明除了前述第1特徵之外還有第5特徵，即，前述 螺線管部包含至少有底杯狀外殼；繞組架的外周上捲繞電 線的電磁繞組；在外殻底部上固定的同時，插入配置在電 磁繞組內的固定鐵心，在泵體的安裝凸緣上裝卸自如地配 置該螺線管部的外殼。 本發明除了前述第1特徵之外還有第6特徵，即，前述 栗體的插入筒部經密封構件插入配置在燃料槽的插入孔內 的同時’插入筒部由在穿設插入孔的燃料槽的插入孔筒部 的外周上配置的第1緊固帶連接支援，此外藉助配置在外 殼外周上的第2緊固帶，將螺線管部連接支援在燃料槽上。 本發明除了前述第5特徵之外還有第7特徵，在構成前 述螺線管部的固定鐵心上穿設與泵部相連的流路，並且在 該固定鐵心的流路上連接配置壓力調整器。 如果根據本發明的第1特徵，則在泵體上配置柱塞、吸 入側止回閥、排出側的止回閥構成的泵部，驅動柱塞的螺 線管部安裝在泵體的安裝凸緣上，形成電磁泵裝置。 12 312/發明說明書(補件)/92-03/91136530 567280 另一方面在泵體的插入筒部的內方穿設與吸入側止回 閥相連的泵吸入路，泵吸入路在插入筒部的上端面上開口。 泵體的插入筒部插入到在燃料槽底部上開口的插入孔 內並固定，由此，電磁泵裝置在燃料槽的底部直接地固定 配置。 如果在螺線管部上通電，驅動泵部，則燃料槽內的燃料 從插入筒部的上端面上開口的泵吸入路吸入到泵部內，在 泵部升壓的燃料從電磁泵裝置向配置在外方的燃料噴射閥 供給。 如果根據本發明的第2特徵，則在泵體的插入筒部內， 與泵吸入路不同地穿設有在插入筒部的上端面上開口的第 2燃料通路，壓力調整器的回流燃料通路與該第2燃料通 路連接。因此流過回流燃料通路內的回流燃料藉助在泵體 的插入筒部穿設的第2燃料通路返回到燃料槽內。 如果根據本發明的第3特徵，則爲了例如電磁泵裝置的 維護而從燃料槽拆卸電磁泵裝置期間，事先開放任一方排 放構件可以向外取出燃料槽內的燃料。 如果根據本發明的第4特徵，因爲在插入筒部的上端面 配置位於插入筒部的上端面的投影面內的過濾構件，所以 在把插入筒部插入到燃料槽的插入孔內時，無障礙地藉助 插入孔把過濾構件插入配置在燃料槽內。 如果根據本發明的第5特徵，螺線管部由在外殼內配置 的繞組架上纏繞的電磁繞組和固定鐵心形成，因爲外殼裝 卸自如地配置在泵體的安裝凸緣上，所以在泵體安裝在燃 13 312/發明說明書(補件)/92·03/91136530 567280 料槽上的狀態下，可以進行由泵體內配置的吸入側止回 閥，排出側止回閥，柱塞構成的泵部及螺線管部的維護作 業。 如果根據本發明的第6特徵，則電磁泵裝置通過連接配 置在燃料槽的插入孔筒部外周上的第1緊固帶，使泵體的 插入筒部在燃料槽的插入孔內連接支援，此外，通過配置 在外殻外周上的第2緊固帶，在燃料槽上連接支援。由此， 通過第一緊固帶插入筒部和插入孔之間的氣密由密封部件 保持，特別是作爲重量部的螺線管部通過第2緊固帶連接 支援在燃料槽上。 如果根據本發明的第7特徵，則在構成螺線管部的固定 鐵心上穿設流路的同時，在該流路上連接配置壓力調整器。 而且’因爲可以一體地彙集配置泵體、螺線管部和壓力 調整器，所以可以彙集成緊湊安裝的同時，可以大幅度提 高對二輪車的安裝性。 如果根據上述，則可以縮短連接壓力調整器和泵體的第 2燃料通路的回流燃料通路的長度。 【實施方式】 參照圖1及圖2對本發明的二輪車用燃料供給裝置的電 磁泵裝置的一實施例說明如下。 圖1爲電磁泵裝置的主要部分縱向斷面圖，圖2爲圖1 的上部平面圖。元件符號1是由鋁料、鋅料、合金樹脂料 等形成的泵體’泵體1包含插入筒部1 A和安裝凸緣部1 b。 插入筒體1 A在圖1上向上方筒狀地形成，在上方端面（稱 14 31W發明說明書(補件)/92-03/91136530 567280 爲上δ而面1 C )的附近插入筒部丨a的外周上凹入設置環狀 密封溝1 D。 一方面’從上端面1C向插入筒部1A內的下方穿設泵吸 入路1E。 從上端面1C向插入筒部ία內的下方穿設第2燃料通路 1 F 〇 如果根據以上所述，在插入筒部1 A的內方穿設泵吸入 路1 E和第2燃料通路1 F，則在上端面1 C上泵吸入路1 E 和第2燃料通路1 F開口。 前述泵吸入路1 E及第2燃料通路1 F的下方是用開口部 1 Ea及開口部1 Fa，從泵體1向外方開口的，在這些開口部 1 Ea、1 Fa上分別設置可以開閉開口的排放構件2。 本例的排放權件2是在外周上形成外螺紋的螺栓，該螺 栓在前述各開口部上螺緊配置，通常，前述各開口部通過 排放構件2保持關閉。 前述排放構件2可以至少包含1個，例如在泵吸入路j E 下方的開口部1 Ea上配置排放構件2時，第2燃料通路1 f 沒有必要用開口部1 F a向外方開放。（換言之，在第2燃料 通路1 F上沒有必要配置排放構件2 )。 第2燃料通路1F是具有向外方開口的第2開口部iFb 的，這應當與後述的回流燃料通路連接。 安裝凸緣部1B配置在插入筒部ία的下方，而且在插入 筒部1 B的側方形成，安裝凸緣部1 b的一部分包含向右側 方突出的環狀凸緣部IBa，在該環狀凸緣部1Ba的外周上 15 312/發明說明書(補件)/92-03/91136530 567280 穿設作成環狀的密封溝1 B b。 而且，在泵體1內形成、配置向以下伸延的泵部P。 元件符號3是面臨安裝凸緣部1 B在圖1的右端面1 B c 側形成的泵室，從而開口，吸入路4和排出路5在泵室3 上開口。. 而且，吸入路4的上流側連在泵吸入路1 E上，排出路5 的下流側連在安裝凸緣部1 B的右端面1 B c上開口的柱塞 滑動孔1 G內。 在前述吸入路內配置只允許從泵吸入路1E向泵室3內 的燃料流動的吸入側止回閥6，在排出路5內配置只允許 從泵室3向柱塞滑動孔1 G內的燃料流動的排出側止回閥 Ί。 此外，在泵室3內還進退自如地配置柱塞8。 柱塞8形成圓筒狀’在支援於泵體1上的托架9上滑動 自如地支援，在其右端一體形成固定凸緣部8A，該固定凸 緣部8A上穿設貫通固定凸緣部8A的凹溝8B。 前述固定凸緣部8 A從螺栓9的右端向右方突出，在柱 塞滑動孔1 G內配置。 如上所述’泵部P由泵室3，吸入側止回閥6，排出側止 回閥7，以及柱塞8形成。 兀件符號S是電驅動栗部P的柱塞8的螺線管部，如下 形成。 元件符號1 0是由導電材料形成的有底杯狀的外殼，在開 口端1 0 A上形成向側方伸延的凸緣部丨0B。 16 312/發明說明書(補件)/92-03/91136530 567280 元件符號1 1是從外殼丨0的開口端丨〇 A向底部丨〇c，作 成在外殼1 0上配置的筒狀的繞組架，在繞組架u的外周 上疊層纏繞電磁繞組丨2。 元件符號1 3在外殻1 〇底部丨0C的中心上固定，其左端 是由向繞組架1 1的內方插入配置的導電性材料構成的固 疋鐵心在固疋鐵心1 3的中心部從右端向左端貫通穿設流 路1 3 A ’而且在前述右端上螺緊燃料接頭1 4，該燃料接頭 1 4與前述流路1 3 A流路連通。 兀件付號1 5是在繞組架1 1內滑動自如地配置的同時， 作成與固定鐵心1 3對置配置的中空圓筒狀的可動鐵心，該 可動鐵心1 5通過第1彈簧1 6附勢能，以便由固定鐵心！ 3 的左端離開。 以上構成的螺線管部S ’如下所不’在栗體1的安裝凸 緣部1 B上安裝。 使外殼1 0的開口端1 Ο A向安裝凸緣部1 B的環狀凸緣部 1 B a的外周插入配置，這時，在外殻1 〇的開口端丨〇 a的內 周和環狀凸緣部1 Ba的外周之間，配置用於在密封溝1 Bb 內配置的〇環等的密封構件1 7。 在環狀凸緣部1 Ba的右端面1 Be和繞組架1 1的左端凸緣 部之間配置由磁性材料構成的磁極圓板1 8。 可動鐵心1 5的左端側插入配置在泵體1的柱塞滑動孔 1G內。 而且，在這樣的狀態下，在泵體1的安裝凸緣部1 B上 配置的外殼1 〇的凸緣部1 0B通過螺絲1 9在泵體1的安裝 17 312/發明說明書(補件)/92-03/91136530 567280 凸緣部1 B上螺緊。 由以上所述’螺線管部S是在泵體1上安裝的，這時， 柱塞8的固定凸緣部8 A通過第2彈簧2 0接觸配置在可動 鐵心1 5的固定台階部丨5 a上。可動鐵心1 5和柱塞8通過 第1彈簧1 6和第2彈簧20互相接觸，在平衡狀態下支援。 如圖1所示的可動鐵心1 5，柱塞8的狀態示出對電磁繞 組1 2的非通電狀態。 元件符號22是在泵體1的插入筒部1 A的上端面丨C上 豎立設置的過濾構件，在本例中作成筒狀，在其外周部上 貼過濾網22 A ’其下端螺緊配置在插入筒部丨a的上端面 1C上開口的栗吸入路1E內。 該過濾構件2 2配置在插入筒部1 A的上端面1 C的投影 面內。在圖2中用點劃線表示的上端面1 C的內方配置過 濾構件22。 根據以上所述形成電磁泵裝置A，該電磁泵裝置A如圖 3所示安裝在燃料槽T上，形成二輪車用燃料供給裝置。 圖3所示的燃料槽T是與圖7所示的相同，同一部分用 同一元件符號，省略說明。 藉助在燃料槽T的插入孔T3的下方開口的開口部，向 插入孔T3內插入配置包含電磁泵裝置A的過濾構件22的 插入筒部1 A，這時，在插入筒部1 A的外周和插入孔T3 之間通過在密封溝1 D內配置的0環等密封構件2 3液密地 密封。 在把包含這樣的過濾構件2 2的插入筒部1 A向插入孔T 3 18 312/發明說明書(補件)/92-03/91136530 567280 內插入時，因爲把過濾構件2 2配置在插入筒部1 A的上端 面i C的投影面內，所以向這樣的插入孔T3內的插入可以 無絲毫障礙地進行。 其次，在向插入孔T3內插入配置插入筒部1 a的狀態 下，在插入孔筒部T4的外周上，如圖4、圖5所示配置作 成弓狀的第1緊固帶24，從第1緊固帶24的弓形部分向 側方伸延的一對臂部24 A、24B通過螺栓25及未圖示的螺 母緊固螺緊，由此電磁泵裝置A固定配置在燃料槽τ的底 部T2。 D是裝著向內燃機噴射壓縮燃料的燃料噴射閥的燃料分 配管，在內部穿設的一側流路Da經燃料管26連接在電磁 泵裝置A的燃料接頭14上。一方面在燃料分配管d的另 一側的流路Db連接在壓力調整器R的燃料室Ra上，由在 隔膜Dc上安裝的閥體Dd開關控制的回流燃料通路27連 在電磁泵裝置A的第2燃料通路1 F的第2開口部1 Fb上。 則述燃料分配管D，燃料噴射閥j，壓力調整器R等是 公知的’在把電磁泵裝置A連接配置在燃料槽τ上的同 時’向燃料噴射閥j，壓力調整器r的配管連接結束。 其次說明其作用’在這樣的二輪車用燃料供給裝置中， 如果在螺線管部S的電磁繞組1 2上附加電脈衝信號，則可 動鐵心1 5通過螺線管部s產生的電磁引力以及與其對抗的 第1彈簧1 6之間相對力關係進行往復運動，使柱塞1 〇或 可動鐵心1 5同步往復運行。 即在可動鐵心15右向移動時，柱塞8通過第2彈簧 312/發明說明書(補件)/92-03/91136530 19 567280 20同步向右方移動，在可動鐵心15左向移動時，柱塞8 通過可動鐵心1 5的固定台階部1 5 A向左向推壓移動。 通過該柱塞8的往復運動，由於泵室3內的室內容積變 化，泵部起著燃料的吸入、排出泵的作用。 即，柱塞8在圖1向右方移動，由於泵室3_內的室容積 增加，泵室3內的壓力降低，則排出側止回閥7在關閉排 出路5並保持的同時，吸入側止回閥6開放吸入路4，燃 料槽T內的燃料經過濾構件2 2，泵吸入路1 E，吸入路4， 向栗室3內吸入充滿。 一方面，柱塞8向圖1左向移動，由於泵室3內的室容 積減少，泵室3內的壓力上升，則吸入側止回閥6在關閉 吸入路4並保持的同時，排出側止回閥7開放排出路5。 在排出路5內流動的燃料流入柱塞滑動孔1 G，柱塞8的 凹槽8 B，可動鐵心1 5的內方和流路1 3 A內，該燃料經燃 料接頭14，燃料管26向燃料分配管D的一側流路Da ,另 一側的流路Db提供。 這裏，另一側流路Db內的燃料向壓力調整器R的燃料 室Ra內導入，通過隔膜Dc，閥體Dd的調壓作用產生的剩 餘燃料經回流燃料通路27向電磁泵裝置A的第2燃料流 路1F回流，接著返回到燃料槽T內。 通過以上的壓力調整器R的減壓及調壓作用，燃料分配 管D內的燃料壓力被調壓至規定的一定壓力，該燃料經在 燃料分配管D上安裝的燃料噴射閥]向未圖示的內燃機噴 射供給。 20 312/發明說明書(補件)/92-03/% 13653〇 567280 如果根據以上構成的本發明的電磁泵裝置，則電磁泵裝 置A由包含插入筒部ία和安裝凸緣部1B的泵體1、泵部 P和螺線管S構成，在氣化器中可以原封不動地利用現有 燃料槽T。 即’第1 ’把電磁泵裝置A的泵體1的插入筒部1 A插入 配置到燃料槽T的插入孔T3內，然後，也可以通過第1 緊固帶24把燃料槽τ的插入孔筒部T4向泵體1的插入筒 部1 A連接。 第2 ’壓力調整器R的回流燃料通路27連接在泵體1的 第2燃料通路1 F上，經第2燃料通路1 F使回流燃料返回 到燃料槽T內’故沒有必要在燃料槽T上設置回流燃料用 的開口。 如上所述’可原封不動地使用現有氣化器的燃料供給裝 置中使用的燃料槽Τ，可以極其容易地從氣化器方式變 燃料噴射方式。例如在這樣的變更期間，不需要改造燃料 槽Τ的金屬模，不需要改造費用。 如果電磁泵裝置Α藉助插入筒部1Α直接地安裝在燃料 槽T上，則第1爲了固定電磁泵裝置A，沒有必要找出新 的固定基座，而且沒有必要準備用於將電磁泵裝置安裝在 固定基座上的支撐物等高價的安裝構件。 第2，尤其如二輪車，處於限定安裝空間狹窄的範圍內， 所以可以提高電磁泵裝置A的佈局性及安裝性。567280 发明 Description of the invention [Technical field to which the invention belongs] The present invention relates to a fuel injection device for supplying fuel boosted by a fuel pump sucked into a fuel tank by a fuel pump via a gas turbine mounted on a fuel distribution pipe, and more particularly, This is a standard tricycle, a general-purpose internal combustion engine, and the like, and as a fuel pump, a magnetic pump having a pump portion including a plunger and a suction-side check valve and a solenoid portion is used. [Prior Art] Currently, as a fuel supply device for two-wheeled vehicles, such as a carburetor c. That is, the 'carburetor c' includes a gasifier main body 5 2 having a throttle valve 51 which passes through the inside of the intake passage gas path 50; a lower part of the arrangement 5 2 and a main body 5 4 53 of the float chamber 5 3 A valve seat 54, a float valve 55, and a regulating liquid level control device F are formed in the constant liquid level. T is a fuel tank that stores fuel inside. An upper hole T1 and a bottom hole T2 are formed with a hole T3 for inserting a fuel boundary described later. The insertion hole T3 penetrates through the bottom portion T2 and projects downward T4. The insertion hole T3 passes through the insertion hole tube portion T4, and opens on the fuel T2. The fuel tap K is switched by the switching valve K3 into the inflow path K 1 312 / Invention Manual (Supplement) / 92-03 / 91136530. For the internally driven two-wheeled vehicle through the fuel injection valve and the fuel injection side check valve, it is driven by the exhaust force. The gas 50 shown in the electromagnetic diagram 7 and the opening and closing are sucked in the main body of the gasifier; the enclosure formed by the 56 in the float chamber 2 is formed with the bottom and outflow of the tank T for the insertion hole of the cock K for the oil cock K Road K2, 7 567280 connects and blocks the inflow road K1 and the outflow road K2. Further, the cylindrical portion K4 of the inflow path K1 including the fuel stopper K is inserted into the insertion hole T3 of the fuel tank T and fixed. On the other hand, the outflow path K2 of the fuel stopper κ is connected to the valve seat 54 via the fuel pipe 57 and arranged. If the switching valve K3 of the fuel tap κ is operated in accordance with the above, and the inflow path K1 and the outflow path K2 are maintained in communication, the fuel in the fuel tank τ passes the inflow path K1, the outflow path K2, and the fuel pipe 57 reaches the gasifier. On the valve seat 54 of c, the fuel is supplied into the float chamber 53. Furthermore, if a certain fuel liquid level is formed in the float chamber 5 3, the float 5 6 moves the float valve 5 5 upward, closes the valve seat 5 4, and stops the fuel supply from the fuel pipe 57 to the float chamber 5 3. Thereby, a certain liquid level in the float chamber 53 can be constantly controlled. From the standpoint of preventing global warming, limiting the emission of harmful gases, and saving energy, from the standpoint of controlling fuel through a gasifier, fuel injection devices with fuel injection valves are also used in two-wheelers. Here, a first example of a fuel pump device for supplying fuel in a fuel tank to a fuel injection valve by an electromagnetic pump in a fuel injection device is disclosed in Japanese Patent No. 309 8 1 66 (indicated by a symbol in the figure). Accordingly, an opening 丨 C is formed on the upper surface 1 a of the fuel tank 1, and a fuel pump body 21 made of an electromagnetic pump is arranged on the upper surface 1 a of the fuel tank 1 so as to close the opening 1C. A suction pipe 2 1 a extending downward from the fuel pump main body 21 opens to the bottom portion 1 b of the fuel tank 1. The fuel pump main body 21 is fastened to the upper surface 1a of the fuel tank 1 by two mounting bolts 23 and a fastening nut 24. 8 312 / Invention Manual (Supplement) / 92-03 / 91136530 50 The second example of a fuel injection device using electromagnetic m is disclosed in Japanese Patent Application Laid-Open No. 2000- 1 407 3 (component symbols are shown in the figure) of). According to this, the plunger pump 50 is arranged below the fuel tank 40, and the suction path of the plunger pump passes through the screening program 140. At the bottom of the fuel tank 40, there is a pipe. The discharge path of the plunger pump 50 is also a pipe. It is connected to the fuel distribution pipe containing the fuel injection valve. The fuel distribution pipe is provided with a pressure regulator. A fuel pipe 150 of the pressure regulator is connected to the bottom of the fuel tank 40, and the fuel moving in the fuel return pipe 150 returns to the fuel tank 40. According to the first example of such a fuel pump device, it is necessary to provide an opening different from the oil supply hole on the upper surface of the fuel. Therefore, the fuel used in the fuel supply device of the existing gasifier cannot be used. It is necessary to insert a new opening in the upper surface of the fuel tank, and to close the insertion hole opened in the existing bottom. Especially for fuel tanks for two-wheelers, starting from the weight reduction and design freedom, multi-purpose synthetic resin materials are used to manufacture the tanks by injection molding. 'To set up new openings on such fuel tanks, metal preparation and openings are required. Corresponding projections. Compared with engraving metal molds and forming protrusions in-process, mold modifications are not easy. The electromagnetic pump is arranged on the fuel tank, and the pump suction pipe formed inside the electromagnetic pump opens to the bottom of the fuel tank. If so, when the liquid level of the fuel tank is displaced, during the initial driving of the electromagnetic pump, the The amount difference occurs when reaching the pump portion of the electromagnetic pump, which is not ideal. Especially in a state where the fuel in the fuel tank is low, for fuel connection to 312 / Invention Manual (Supplement) / 92 · 03 / 9113653〇, the material of 30 is returned to the internal flow tank intact. It takes time to get the fuel from the upper part of the corner fuel mold to reach 9,567,280 pumps. In the above, when the internal combustion engine is stopped, a liquid surface having a substantially the same height as the fuel liquid surface in the fuel tank is formed in the suction pipe, and there is an air portion that is not full of fuel between the liquid surface and the pump portion above it. When the fuel in the fuel tank is small, the air portion is large. Accordingly, in the initial stage of driving the electromagnetic pump, there is a concern that the air in the suction pipe is repeatedly compressed and the discharge response of the electromagnetic pump may be blocked. The electromagnetic pump is attached to the fuel tank by bolts and nuts. Therefore, either the hexagonal part of the bolt or the nut needs to be disposed inside the fuel tank, and the operability of mounting the electromagnetic pump to the fuel tank cannot be improved. According to the existing second example, the plunger pump is disposed separately from the fuel tank. Based on this, a fixed part is found near the fuel tank, and the plunger pump needs to be installed and fixed on the fixed part. The mounting member has poor mounting performance. According to the foregoing, in the space portion of the fuel tank and the fuel distribution pipe, it is necessary to find a space portion for disposing the plunger pump. In particular, if the space of a two-wheeler is limited, the freedom of configuration of the plunger pump is limited. At the bottom of the fuel tank is a fuel return pipe connected to a pressure regulator. The fuel tank in the fuel supply device of the gasifier cannot be used intact. That is, an opening for connecting the fuel return pipe needs to be re-perforated in the fuel tank. Since the plunger pump is deviated from the fuel tank configuration, the plunger pump needs to be connected to the fuel tank by piping. Accordingly, piping must be prepared. In addition, it is necessary to connect one end of the piping to the plunger pump, and connect the other end of the piping to the fuel tank, which increases the number of parts and the number of installers, and prevents cost reduction. [Summary of the Invention] 10 312 / Invention Specification (Supplement) / 92-03 / 91136530 567280 The electromagnetic pump device of the two-wheeled vehicle fuel supply device of the present invention is proposed in view of the foregoing unsuitable situation, and its purpose is to provide a method that can be used in existing The electromagnetic pump of the fuel tank used in the fuel supply device of the gasifier is provided with a piping connection between the electromagnetic pump device and the fuel tank, and a piping connection between the fuel return path of the pressure regulator and the fuel tank. Easy electromagnetic pump unit. In addition, we also provide an electromagnetic focusing device that is excellent in placement on two wheels. There is also provided an electromagnetic pump device that does not affect the change in the fuel level in the fuel tank, and constantly performs stable fuel supply and has excellent responsiveness. In order to achieve the aforementioned object, the electromagnetic pump of the fuel supply device for a two-wheeled vehicle of the present invention boosts the fuel in the fuel tank by the electromagnetic pump, and supplies the boosted fuel to the two-wheeled vehicle on the fuel injection valve installed in the fuel distribution pipe. In the fuel supply device, the first feature is that the pump body includes an insertion tube portion extending upward, and a mounting flange portion disposed on a side of the insertion tube portion, and a solenoid portion is mounted on the mounting flange. The pump body includes a plunger driven by a solenoid portion and a pump portion composed of a suction side check valve and a discharge side check valve. The suction path of the pump connected to the suction-side check valve passes through the insertion tube portion, opens at the upper end portion of the insertion tube portion, and inserts and arranges the insertion tube portion through the insertion hole opened at the bottom of the fuel tank, thereby mounting the pump body on the fuel tank. The present invention has a second feature in addition to the above-mentioned first feature, that is, a second fuel passage is formed in the insertion cylinder portion of the pump body, and the second fuel passage is opened in the insertion cylinder portion toward the upper end surface of the insertion cylinder portion. 11 312 / Invention specification (Supplement) / 92-03 / 91136530 567280 The aforementioned second fuel passage is connected to the return fuel passage of a pressure regulator that regulates the pressure of the fuel discharged from the electromagnetic pump device to a predetermined pressure. The present invention has a third feature in addition to the first and second features described above, that is, a discharge member that can open and close these passages is disposed in either the pump suction path or the second fuel passage. The present invention has a fourth feature in addition to the aforementioned first feature, that is, a cylindrical filter member connected to the pump suction path is disposed on a projection surface of the upper end surface on the upper end surface of the insertion tube portion of the pump body. The present invention has a fifth feature in addition to the aforementioned first feature, that is, the aforementioned solenoid portion includes at least a bottomed cup-shaped housing; an electromagnetic winding of an electric wire is wound on the outer periphery of the winding frame; while being fixed on the bottom of the housing, The fixed iron core arranged in the electromagnetic winding is inserted, and the casing of the solenoid portion is detachably arranged on the mounting flange of the pump body. According to the present invention, in addition to the first feature described above, a sixth feature is that the insertion tube portion of the chestnut is inserted into the insertion hole of the fuel tank through a sealing member while the insertion tube portion is fueled by the insertion hole. The first fastening tape connection support arranged on the outer periphery of the insertion hole tube portion of the groove supports the solenoid portion to the fuel tank by means of the second fastening tape disposed on the outer periphery of the housing. The present invention has a seventh feature in addition to the fifth feature described above. A flow path connected to the pump part is passed through the fixed core constituting the solenoid part, and a pressure regulator is connected to the flow path of the fixed core. According to the first feature of the present invention, a pump portion including a plunger, a check valve on the suction side, and a check valve on the discharge side is arranged on the pump body, and a solenoid portion that drives the plunger is mounted on the mounting protrusion of the pump body. On the edge, an electromagnetic pump device is formed. 12 312 / Invention Manual (Supplement) / 92-03 / 91136530 567280 On the other hand, a pump suction path connected to the suction side check valve is inserted inside the insertion tube portion of the pump body, and the pump suction path is at the insertion tube portion. The upper end of the opening. The insertion cylinder portion of the pump body is inserted into an insertion hole opened in the bottom of the fuel tank and fixed, whereby the electromagnetic pump device is directly fixedly arranged at the bottom of the fuel tank. When the solenoid portion is energized and the pump portion is driven, the fuel in the fuel tank is sucked into the pump portion from the pump suction path opened on the upper end face of the barrel portion, and the fuel boosted by the pump portion is arranged from the electromagnetic pump device to the It is supplied from an external fuel injection valve. According to the second feature of the present invention, a second fuel passage opened on the upper end surface of the insertion cylinder is formed in the insertion cylinder portion of the pump body differently from the pump suction path, and the return fuel passage of the pressure regulator and The second fuel passage is connected. Therefore, the return fuel flowing through the return fuel passage is returned to the fuel tank through the second fuel passage provided in the insertion cylinder portion of the pump body. According to the third feature of the present invention, when the electromagnetic pump device is removed from the fuel tank for maintenance of the electromagnetic pump device, for example, any one of the discharge members is opened in advance to take out the fuel in the fuel tank. According to the fourth feature of the present invention, since the filter member located in the projection plane of the upper end surface of the insertion tube portion is disposed on the upper end surface of the insertion tube portion, there is no need to insert the insertion tube portion into the insertion hole of the fuel tank. The filter member is inserted into the fuel tank through the insertion hole in an obstacle. According to the fifth feature of the present invention, the solenoid portion is formed of an electromagnetic winding and a fixed iron core wound on a winding frame arranged in the casing, and the casing is detachably disposed on the mounting flange of the pump body, so the When mounted on the fuel tank of 13 312 / Invention Manual (Supplement) / 92 · 03/91136530 567280, it is possible to perform a pump consisting of a suction side check valve, a discharge side check valve, and a plunger arranged in the pump body. Maintenance of the engine and solenoid unit. According to the sixth feature of the present invention, the electromagnetic pump device connects and supports the insertion tube portion of the pump body in the insertion hole of the fuel tank by connecting the first fastening band disposed on the outer periphery of the insertion hole tube portion of the fuel tank. In addition, a second fastening band disposed on the outer periphery of the case is used to connect and support the fuel tank. Thereby, the airtightness between the cylindrical portion and the insertion hole through the first fastening tape is maintained by the sealing member, and in particular, the solenoid portion, which is the weight portion, is connected to the fuel tank and supported by the second fastening tape. According to the seventh feature of the present invention, a flow path is passed through the fixed core constituting the solenoid portion, and a pressure regulator is connected to the flow path. In addition, since the pump body, the solenoid portion, and the pressure regulator can be integrated and arranged, it can be integrated into a compact installation and can greatly improve the mountability to the two-wheeled vehicle. According to the above, the length of the return fuel passage of the second fuel passage connecting the pressure regulator and the pump body can be shortened. [Embodiment] An embodiment of an electromagnetic pump device for a fuel supply device for a two-wheeled vehicle according to the present invention will be described below with reference to Figs. 1 and 2. FIG. 1 is a longitudinal sectional view of a main part of the electromagnetic pump device, and FIG. 2 is an upper plan view of FIG. 1. The reference numeral 1 is a pump body formed of an aluminum material, a zinc material, an alloy resin material, or the like. The pump body 1 includes an insertion tube portion 1 A and a mounting flange portion 1 b. The insertion cylinder 1 A is formed cylindrically upward in FIG. 1, and is inserted into the cylinder near the upper end surface (referred to as 14 31W invention specification (supplement) / 92-03 / 91136530 567280 is the upper δ and the surface 1 C) 丨An annular sealing groove 1 D is recessed on the outer periphery of a. On the one hand, a pump suction channel 1E is provided from the upper end surface 1C to the lower side of the insertion tube portion 1A. From the upper end surface 1C, a second fuel passage 1 F is inserted below the insertion tube portion Γα. As described above, a pump suction path 1 E and a second fuel passage 1 F are inserted inside the insertion tube portion 1 A. , The pump suction path 1 E and the second fuel passage 1 F are opened on the upper end surface 1 C. Below the pump suction path 1 E and the second fuel passage 1 F, openings 1 Ea and 1 Fa are opened from the pump body 1 to the outside. These openings 1 Ea, 1 Fa may be provided respectively. Opening and closing the open drain member 2. The discharge member 2 of this example is a bolt having an external thread formed on the outer periphery, and the bolt is screwed on each of the aforementioned openings. Generally, the aforementioned openings are kept closed by the discharge member 2. The above-mentioned exhaust member 2 may include at least one. For example, when the exhaust member 2 is disposed on the opening 1 Ea below the pump suction path j E, the second fuel passage 1 f does not need to be opened to the outside by the opening 1 F a. (In other words, it is not necessary to arrange the exhaust member 2 in the second fuel passage 1F). The second fuel passage 1F has a second opening portion iFb which is opened outward, and this should be connected to a return fuel passage described later. The mounting flange portion 1B is disposed below the insertion tube portion Γα, and is formed on the side of the insertion tube portion 1 B. A part of the mounting flange portion 1 b includes a ring-shaped flange portion IBa protruding to the right. 15 312 / Invention Specification (Supplement) / 92-03 / 91136530 567280 is formed on the outer periphery of the flange portion 1Ba, and a sealing groove 1 B b is formed in a ring shape. A pump portion P extending downward is formed and arranged in the pump body 1. The reference numeral 3 is a pump chamber formed on the right end surface 1 B c side of FIG. 1 facing the mounting flange portion 1 B, and is opened, and the suction path 4 and the discharge path 5 are opened on the pump chamber 3. The upstream side of the suction path 4 is connected to the pump suction path 1 E, and the downstream side of the discharge path 5 is connected to the plunger slide hole 1 G opened on the right end face 1 B c of the mounting flange portion 1 B. A suction side check valve 6 that allows fuel to flow from the pump suction path 1E to the pump chamber 3 is disposed in the aforementioned suction path, and a discharge valve 5 is provided in the discharge path 5 that permits only the pump chamber 3 to slide into the plunger slide hole 1 G. Discharge-side check valve Ί for fuel flow. In addition, the plunger 8 is also movably arranged in the pump chamber 3. The plunger 8 is formed in a cylindrical shape and is slidably supported on a bracket 9 supported on the pump body 1. A fixed flange portion 8A is integrally formed on the right end thereof. The fixed flange portion 8A is provided with a through-fixed flange portion. 8A 的 槽 槽 8B. The fixing flange portion 8A protrudes rightward from the right end of the bolt 9, and is disposed in the plug sliding hole 1G. As described above, the 'pump section P' is formed of the pump chamber 3, the suction-side check valve 6, the discharge-side check valve 7, and the plunger 8. The element symbol S is a solenoid portion of the plunger 8 which electrically drives the pump portion P, and is formed as follows. The element symbol 10 is a bottomed cup-shaped casing formed of a conductive material, and a flange portion 丨 0B extending laterally is formed at the opening end 10A. 16 312 / Invention Manual (Supplement) / 92-03 / 91136530 567280 The component symbol 1 1 is from the open end of the casing 丨 0 to the bottom 丨 〇c, and a cylindrical winding frame arranged on the casing 10 is made. The electromagnetic windings 2 are laminated and wound on the outer periphery of the winding frame u. The component symbol 1 3 is fixed on the center of the bottom of the housing 10, and the left end is a solid iron core made of a conductive material inserted into the winding frame 11 and arranged at the center of the solid iron core 13 from the right end. A flow path 1 3 A ′ is passed through to the left end, and a fuel joint 14 is screwed on the right end, and the fuel joint 14 communicates with the flow path 1 3 A. The element number 15 is a hollow cylindrical movable iron core arranged opposite to the fixed iron core 13 while being slidably arranged in the winding frame 11. The movable iron core 15 is attached by a first spring 16. Potential energy so that the core is fixed! The left end of 3 leaves. The solenoid portion S 'configured as described above is mounted on the mounting flange portion 1B of the chestnut 1 as follows. The open end 10 A of the housing 10 is inserted into the outer periphery of the annular flange portion 1 B a of the mounting flange portion 1 B. At this time, the inner periphery of the open end of the housing 10 and the annular flange portion are arranged. Between the outer periphery of 1 Ba, a sealing member 17 such as an o-ring for placement in the sealing groove 1 Bb is disposed. A magnetic pole circular plate 18 made of a magnetic material is arranged between the right end surface 1 Be of the annular flange portion 1 Ba and the left end flange portion of the winding frame 11. The left end side of the movable iron core 15 is inserted into the plunger slide hole 1G of the pump body 1. Furthermore, in this state, the flange portion 10B of the housing 10 disposed on the mounting flange portion 1B of the pump body 1 is mounted on the pump body 1 by the screw 19. 17 312 / Invention Specification (Supplement) / 92-03 / 91136530 567280 Tighten the flange part 1 B. As described above, the “solenoid portion S is mounted on the pump body 1. At this time, the fixed flange portion 8 A of the plunger 8 contacts the fixed step portion of the movable iron core 15 through the second spring 20. 5 a on. The movable iron core 15 and the plunger 8 are in contact with each other through the first spring 16 and the second spring 20, and are supported in a balanced state. As shown in the movable iron core 15 shown in FIG. 1, the state of the plunger 8 shows a state where the electromagnetic coil 12 is not energized. The reference numeral 22 is a filter member which is erected on the upper end surface 丨 C of the insertion tube portion 1 A of the pump body 1. In this example, the filter member is formed in a cylindrical shape, and a filter screen 22 A is attached to its outer peripheral portion. The lower end is screwed. The pump suction channel 1E opened on the upper end surface 1C of the insertion tube portion 丨 a. The filter member 22 is arranged in the projection plane of the upper end surface 1C of the insertion tube portion 1A. A filter member 22 is disposed inside the upper end surface 1 C indicated by a chain line in FIG. 2. As described above, the electromagnetic pump device A is formed, and the electromagnetic pump device A is mounted on the fuel tank T as shown in FIG. 3 to form a fuel supply device for a two-wheeled vehicle. The fuel tank T shown in FIG. 3 is the same as that shown in FIG. 7, and the same parts are denoted by the same reference numerals, and descriptions thereof are omitted. The insertion tube portion 1 A including the filter member 22 of the electromagnetic pump device A is inserted into the insertion hole T3 through an opening portion opened below the insertion hole T3 of the fuel tank T. At this time, the outer periphery of the insertion tube portion 1 A and The insertion holes T3 are sealed in a liquid-tight manner by a sealing member 2 3 such as a 0 ring arranged in the sealing groove 1 D. When inserting the insertion tube portion 1 A containing such a filter member 2 2 into the insertion hole T 3 18 312 / Invention Specification (Supplement) / 92-03 / 91136530 567280, the filter member 22 is disposed in the insertion tube. Since the upper end surface i C of the portion 1 A is in the projection plane, insertion into such an insertion hole T3 can be performed without any obstacle. Next, in a state where the insertion tube portion 1 a is inserted into the insertion hole T3, the first fastening band 24 formed in an arcuate shape is arranged on the outer periphery of the insertion hole tube portion T4 as shown in FIGS. 4 and 5. The pair of arm portions 24 A and 24B extending sideways of the arcuate portion of the first fastening band 24 are fastened by bolts 25 and nuts (not shown), so that the electromagnetic pump device A is fixedly arranged at the bottom of the fuel tank τ. T2. D is a fuel distribution pipe containing a fuel injection valve for injecting compressed fuel into the internal combustion engine, and a side flow passage Da passing through the inside is connected to a fuel joint 14 of the electromagnetic pump device A via a fuel pipe 26. On the other hand, the flow path Db on the other side of the fuel distribution pipe d is connected to the fuel chamber Ra of the pressure regulator R, and a return fuel passage 27 controlled by a valve body Dd switch mounted on the diaphragm Dc is connected to the electromagnetic pump device A On the second opening 1 Fb of the second fuel passage 1 F. The fuel distribution pipe D, the fuel injection valve j, the pressure regulator R, and the like are well-known 'while the electromagnetic pump device A is connected to the fuel tank τ and arranged' to the fuel injection valve j and the pressure regulator r. End. Next, the function will be described. In such a fuel supply device for a two-wheeled vehicle, if an electric pulse signal is added to the electromagnetic winding 12 of the solenoid portion S, the electromagnetic attraction generated by the movable core 15 through the solenoid portion s and the electromagnetic force The relative force relationship between the opposing first springs 16 reciprocates, causing the plunger 10 or the movable iron core 15 to reciprocate synchronously. That is, when the movable iron core 15 moves to the right, the plunger 8 moves synchronously to the right through the second spring 312 / Invention Manual (Supplement) / 92-03 / 91136530 19 567280 20, and when the movable iron core 15 moves to the left, the column The plug 8 is pushed to the left by the fixed step portion 15 A of the movable iron core 15 and moved. Due to the reciprocating motion of the plunger 8, the volume of the room in the pump chamber 3 changes, and the pump unit functions as a fuel suction and discharge pump. That is, the plunger 8 moves to the right in FIG. 1, and as the chamber volume in the pump chamber 3_ increases and the pressure in the pump chamber 3 decreases, the discharge-side check valve 7 closes the discharge path 5 and holds it while sucking The side check valve 6 opens the suction path 4, and the fuel in the fuel tank T passes through the filter member 22, the pump suction path 1 E, and the suction path 4, and is sucked and filled into the chest chamber 3. On the one hand, the plunger 8 moves to the left in FIG. 1. As the chamber volume in the pump chamber 3 decreases and the pressure in the pump chamber 3 increases, the suction-side check valve 6 closes the suction path 4 and holds it, while discharging. The check valve 7 opens the discharge path 5. The fuel flowing in the discharge path 5 flows into the plunger slide hole 1 G, the groove 8 B of the plunger 8, the inside of the movable iron core 15 and the flow path 1 3 A. The fuel passes through the fuel joint 14 and the fuel pipe 26 It is supplied to one side flow path Da and the other side flow path Db of the fuel distribution pipe D. Here, the fuel in the other side flow path Db is introduced into the fuel chamber Ra of the pressure regulator R, and the remaining fuel generated by the pressure regulating action of the valve body Dd through the diaphragm Dc passes through the return fuel passage 27 to the first part of the electromagnetic pump device A. The 2 fuel flow path 1F returns, and then returns to the fuel tank T. As a result of the above-mentioned pressure reducing and pressure-regulating effects of the pressure regulator R, the fuel pressure in the fuel distribution pipe D is adjusted to a predetermined constant pressure, and the fuel passes through a fuel injection valve installed in the fuel distribution pipe D. The internal combustion engine injection supply shown. 20 312 / Invention specification (Supplement) / 92-03 /% 13653〇567280 According to the electromagnetic pump device of the present invention configured as above, the electromagnetic pump device A is composed of a pump body including an insertion tube portion α and a mounting flange portion 1B. 1. The pump portion P and the solenoid S are configured, and the existing fuel tank T can be used intact in the gasifier. That is, the "first" inserts the insertion tube portion 1 A of the pump body 1 of the electromagnetic pump device A into the insertion hole T3 of the fuel tank T, and then the insertion hole of the fuel tank τ can also be inserted through the first fastening band 24 The tube portion T4 is connected to the insertion tube portion 1 A of the pump body 1. The second 'return fuel passage 27 of the pressure regulator R is connected to the second fuel passage 1 F of the pump body 1, and the return fuel is returned to the fuel tank T via the second fuel passage 1 F.' An opening for returning fuel is provided on the top. As described above, the fuel tank T used in the fuel supply device of the existing gasifier can be used as it is, and it is extremely easy to change from the gasifier method to the fuel injection method. For example, during such a change, there is no need to modify the metal mold of the fuel tank T, and no modification cost is required. If the electromagnetic pump device A is directly mounted on the fuel tank T via the insertion cylinder portion 1A, it is not necessary to find a new fixing base in order to fix the electromagnetic pump device A, and it is not necessary to prepare for mounting the electromagnetic pump device An expensive mounting member such as a support on a fixed base. Secondly, the two-wheeled vehicle, in particular, is in a range where the installation space is limited. Therefore, the layout and installation of the electromagnetic pump device A can be improved.
第3，因爲在泵體上設置的泵吸入路1E直接地在燃料槽 T內開口，所以可以不要用於連接電磁泵裝置和燃料槽T 21 312/發明說明書(補件)/必〇3/9113653〇 567280 的配管，可以減少部件個數並提高配管的操作性。 如果通過在電磁泵裝置A上設置與流路1 3 A相連的燃料 接頭1 4，以及設置第2燃料通路1 F的第2開口部1 Fb，則 因爲燃料配管26及回流燃料通路27可以共同地向單一的 電磁泵裝置A連接，所以可以提高前述配管的連接操作性。 以除去從燃料槽T經泵吸入路1 E向泵部P的燃料中包 含的異物爲目的的過濾構件22配置在泵體1的插入筒部 1 A的上端面1 C上，而且如果配置在前述上端面1 C的投影 面內’則可以無絲毫障礙地使泵體1的插入筒部1 A插入 燃料槽T的插入孔T3內。 作爲這樣的過濾構件22的形狀，希望作成如本例所示的 筒狀。 如果根據本發明的電磁泵裝置A，則可以提高其維護 性’第1，在維護作業前，可以使燃料槽T內的燃料不向 外部飛濺地、可靠地排出。 即，在電磁泵裝置A安裝在燃料槽T的底部T2上的狀 態下，例如使關閉泵吸入路1 E的開口部1 Ea的排放構件2 旋轉，使開口部lEa開放。 如果根據以上所示，則可以使燃料槽T內的燃料經泵吸 入路1 E的開口部1 Ea不飛濺地、可靠地向外部排出。這 樣的排放構件2通過直接設置在燃料槽T上，以進行前述 燃料的排出作業，然而，有必要對燃料槽加以改造，這與 在現有的氣化器方式用的燃料槽T不能原封不動地加以使 用有關。 22 312/發明說明書(補件)/92-03/91136530 567280 而且’所述燃料槽τ空出的狀態下，即使從燃料槽τ卸 下電磁泵裝置Α也不會發生所謂燃料向外部溢出的不合適 情況，可以提高維護的操作性。 第2 ’因爲螺線管部S由有底杯狀的外殻1 〇、配置在外 殼1 〇內的纏繞電磁繞組1 2的繞組架1 1和在外殼1 0上固 定的固定鐵心形成，這樣的外殻1 〇的凸緣部1 〇 B在泵體1 的安裝凸緣部1 B上通過螺絲1 9裝卸自如地配置，所以在 電磁泵裝置A安裝在燃料槽T的狀態下，可以進行螺線管 部S及泵部p的維護作業。 即鬆動螺絲1 9，可以把外殻1 0從泵體1取出，由此可 以從外殻1 0取出包含外殻1 〇內的電磁繞組1 2的繞組架 1 1、磁極圓板1 8和可動鐵心1 5，還可以從泵體1取出柱 塞8、托架9和吸入側止回閥，可以對取出的這些部件進 行維護。 如果再返回圖3加以說明，則元件符號2 8是在螺線管S 的外殻1 0的外周上配置的第2緊固帶，其形狀作成與圖4 所示的第1緊固帶24相似的形狀，具有對置的一對臂部 28A 、 28B 。 這樣的第2緊固帶28配置在外殻1 〇的外周上，臂部 28A、28B通過螺栓25及未圖示的螺母連接在從燃料槽T 突出的突出部T5上。 如果根據以上所述，電磁泵裝置A的插入筒部1 A通過 第1緊固帶24連接支援在插入孔筒部T上，外殼10通過 第2緊固帶28連接支援在突出部T5上，據此比較地具有 23 3 Π/發明說明書(補件)/92-03/91136530 567280 重量，而且在側方單側狀態下支援的（外殼1 〇的凸緣部 1 〇 Β必須安裝在泵體1的安裝凸緣1 Β上）螺線管部s由第 2緊固帶2 8支援，所以尤其較佳裝載於滑動激烈的二輪車 上。 可是在用這樣的第2緊固帶28時，需要改造氣化器方式 中用的燃料槽（在圖7上記載的）、設置突出部Τ5，然而， 注射成型，吹塑成型中使用的金屬模可以與突出部Τ5相 當地進行雕刻，故該金屬模可以極爲簡單地實施。 下面’參照圖6對電磁泵裝置的其他實施例加以說明。 對與圖1同一構造部分，使用同一元件符號，省略其說 明。 在外殼1 0的底部i 〇C上固定的固定鐵心1 3上從左端向 右端貫通穿設流路1 3 A，從流路1 3 A的中間部向上方，使 燃料接頭1 4分叉。 壓力調整器R在調整器體3〇和蓋31之間夾持隔膜Dc， 通過該隔膜Dc劃分燃料室Ra和彈簧室。在調整器體 3 0上形成在燃料室R c上開口的流入路3 2和流出路3 3，配 置在向流出路33的燃料室Ra內開口端上的閥座34通過與 隔膜Dc同步移動的閥體Dd開閉。 (則述壓力目周整器R本身是公知的） ί!樣的壓力調整器R用在流入路32的外周的軸套部35 上形成的陽螺絲在固定鐵心1 3的右端上螺緊固定，這時， 固定鐵心1 3的流路丨3 a和調整器體3 〇的流入路3 2之間連 通’流出路3 3經回流通路27連接在第2燃料通路1 ρ的第 24 312/發明說明書(補件)/92·03/91136530 567280 2開口部lFb上。 如果根據這樣的電磁泵裝置A，則因爲壓力調整器r與 電磁泵裝置A預先一體地安裝，可以預先連接回流燃料通 路2 7 ’所以在電磁泵裝置a安裝在燃料槽τ上後，可以只 通過燃料管26連接燃料接頭1 4和燃料分配管D的流路， 所以大爲提局向二輪車載置時的配管連接操作性。 在電磁泵裝置A本身上，因爲可以集中地配置流過壓力 調整器R的回流燃料的配管（流出路3 3，回流燃料通路 2 7，第2燃料通路1 F )，所以尤其是可以大大縮短回流燃 料通路2 7的通路長度，尤其在如二輪車那樣的周圍開放的 車輛中，不僅配管的佈局以及外觀上好，而且可以減少在 回流燃料通路2 7內產生的蒸汽，可以減少進入燃料槽τ 內的蒸汽量。 因爲通過從燃料槽T取出電磁泵裝置A，可以同時取出 電磁泵裝置（泵部P和螺線管部S )和壓力調整器R，所 以可以提高對它們維護的操作性。 通過壓力調整器R安裝在電磁泵裝置A上，沒有必要在 燃料分配管D的周圍準備壓力調整器R的容納空間，尤其 是可以靈活使用配置燃料分配管D及燃料噴射閥J的內燃 機附近的空間。 如上所述，如果根據本發明的二輪車用燃料供給裝置的 電磁泵裝置，則泵體包含向上方伸延的插入筒部和在插入 筒部側方配置的安裝凸緣部。 在前述安裝凸緣部上安裝螺線管部， 25 3 發明說明書(補件)/92-〇3/9113653〇 567280 在泵體內包含通過螺線管部驅動的柱塞，和由吸入側回 止閥及排出側回止閥形成的泵部。 因爲使與前述吸入側回止閥相連的泵的吸入路通過插 入筒部內，並在插入筒部的上端部開口，所以在用於安裝 具有現有氣化器內使用的燃料槽的燃料活栓的插入孔中通 過插入前述泵體的插入筒部，可以在現有的燃料槽上安裝 電磁泵裝置，容易實現從氣化器方式變換爲燃料噴射方式。 在安裝這樣的電磁泵裝置的燃料槽時，沒有必要找到新 的固定部，而且也不需要用於在固定部上安裝電磁泵裝置 用的特別新型的安裝構件。 因爲向著電磁泵裝置的泵部的泵吸入路直接地在燃料 槽底部上開口、連接，所以不需要燃料槽和電磁泵之間的 流入配管以及流入配管的連接作業，所以通過削減部件個 數和連接作業可以達到造價的降低。 由於沒有流入配管，可以制止配管向外部露出，尤其是 對如二輪車那樣的電磁泵裝置等直接向外部露出的車輛較 好。如果通過泵吸入路在燃料槽底部上開口，則因爲與泵 部相連的泵吸入路內不論燃料槽的殘留燃料多少，經常充 滿燃料而不含空氣，所以從電磁泵裝置啓動初.期開始可以 立刻供應穩定的燃料。 通過在泵體的插入筒部上穿設向著處於插入筒部內的 插入筒部的上端面開口的第2燃料通路，沒有必要在現有 氣化器方式中使用的燃料槽上設置用於連接壓力調整器的 回流燃料通路的管部，對現有的燃料槽沒有必要作任何變 26 312/發明說明書(補件)/92-03/91136530 567280 更。 因爲在電磁泵裝置上，設置燃料接頭、第2燃料通路的 第2開口部’所以在電磁泵裝置安裝在燃料槽上時，對燃 料分配管相連的燃料管以及與壓力調整器相連的回流燃料 通路可以共同地對電磁泵裝置（燃料接頭，第2開口部） 連接’這時因爲該連接部在電磁泵裝置部上特別指定，所 以可以有效且容易地實施燃料管以及回流燃料通路的連接 操作性。 如果通過在栗吸入路或第2燃料通路的任一方上配置可 以開閉這些通路的排放構件，則通過由前述排放構件開放 泵吸入路或第2燃料通路的任一方，可以使燃料槽內的燃 料不向周圍飛散地、可靠地去掉，故在將電磁泵裝置從燃 料槽取出、進行其維護作業時是有效果的。即使在二輪車 經歷長時間儲存的情況下，也可以制止燃料槽內的燃料變 差。 如果通過在泵體的插入筒部的上端面上，處於上端面的 投影面內，配置與泵吸入路相連的筒狀過濾構件，則把插 入筒部插入到燃料槽的插入孔內期間，過濾構件不會干擾 插入孔，可以平滑地實施電磁泵裝置向燃料槽的安裝。 如果通過把螺線管部的外殼在泵體的安裝凸緣部上裝 卸自如地配置，則通過從安裝凸緣部取出外殻，使得構成 螺線管部的固定鐵心、捲繞電磁繞組的繞組架、可動鐵心、 構成泵部的柱塞、以及吸入側止回閥等可以從泵體的安裝 凸緣部的右端面取出而不用從燃料槽取出燃料泵裝置，可 27 312/發明說明書(補件)/92-03/91136530 567280 以提高這些構件的維護操作性。 插入配置在燃料槽的插入孔內的泵體插入筒部通過第1 緊固帶連接支援，藉助螺線管部外殻的外周上配置的第2 緊固帶把外殻連接支援在燃料槽上，從而尤其在使用二輪 車時，在滑動條件嚴格的情況下，能可靠地把電磁泵裝置 組裝在燃料槽上。 在構成螺線管部的固定鐵心上穿設與泵部相連的流路 的同時，在該固定鐵心的流路上連接配置壓力調整器，由 ‘ 此則可以縮短回流燃料通路的長度。這些尤其使在外部露 ® 出的二輪車的外觀上較好。可以減少在回流燃料通路內 生的蒸汽，有效地抑制蒸汽向燃料槽內的進入。 在電磁泵裝置上配置壓力調整器，因爲這些預先組裝 好，所以可以提高對二輪車的安裝操作性的同時，通過從 內燃機附近取出壓力調整器，可以提高在內燃機附近配置 的燃料分配管及燃料噴射閥配置的自由度。Third, since the pump suction path 1E provided on the pump body directly opens in the fuel tank T, it may not be used to connect the electromagnetic pump device and the fuel tank T 21 312 / Invention Manual (Supplement) / Required 03 / The piping of 9113653〇567280 can reduce the number of parts and improve the operability of the piping. If the electromagnetic pump device A is provided with a fuel joint 14 connected to the flow path 1 3 A and a second opening 1 Fb of the second fuel passage 1 F, the fuel pipe 26 and the return fuel passage 27 can be shared. Since the ground is connected to a single electromagnetic pump device A, the connection workability of the piping can be improved. A filter member 22 for removing foreign matter contained in fuel from the fuel tank T through the pump suction path 1 E to the pump section P is disposed on the upper end surface 1 C of the insertion tube portion 1 A of the pump body 1 and, if it is disposed on In the projection plane of the upper end surface 1C, the insertion tube portion 1A of the pump body 1 can be inserted into the insertion hole T3 of the fuel tank T without any obstacle. As the shape of such a filter member 22, it is desirable to form a cylindrical shape as shown in this example. According to the electromagnetic pump device A of the present invention, the maintainability can be improved. First, the fuel in the fuel tank T can be reliably discharged without splashing to the outside before maintenance work. That is, in a state where the electromagnetic pump device A is mounted on the bottom T2 of the fuel tank T, for example, the discharge member 2 that closes the opening portion 1 Ea of the pump suction path 1 E is rotated to open the opening portion 1Ea. According to the above, the fuel in the fuel tank T can be discharged to the outside without splashing through the opening portion 1Ea of the pump suction path 1E. Such a discharge member 2 is directly provided on the fuel tank T to perform the aforementioned fuel discharge operation. However, it is necessary to modify the fuel tank, which cannot be left intact with the fuel tank T used in the conventional gasifier method. Be relevant. 22 312 / Invention Manual (Supplement) / 92-03 / 91136530 567280 Furthermore, in the state where the fuel tank τ is vacant, even if the electromagnetic pump device A is removed from the fuel tank τ, the so-called fuel spillage to the outside does not occur. Improper conditions can improve the operability of maintenance. The second part is because the solenoid portion S is formed by a bottomed cup-shaped casing 10, a winding frame 11 wound around the electromagnetic winding 12 arranged in the casing 10, and a fixed iron core fixed on the casing 10. The flange portion 10B of the casing 10 is detachably arranged on the mounting flange portion 1B of the pump body 1 by screws 19, so the electromagnetic pump device A can be installed in the state of the fuel tank T. Maintenance of the solenoid section S and the pump section p. That is, by loosening the screws 19, the casing 10 can be taken out of the pump body 1, and thus the winding frame 11 containing the electromagnetic windings 12 in the casing 10, the magnetic pole circular plate 18, and The movable iron core 15 can also take out the plunger 8, the bracket 9, and the check valve on the suction side from the pump body 1, so that the removed parts can be maintained. Returning to FIG. 3 for explanation, the component symbol 28 is a second fastening tape arranged on the outer periphery of the casing 10 of the solenoid S, and has a shape similar to that of the first fastening tape 24 shown in FIG. 4. A similar shape has a pair of opposing arm portions 28A, 28B. Such a second fastening tape 28 is arranged on the outer periphery of the casing 10, and the arm portions 28A, 28B are connected to the projection T5 protruding from the fuel tank T by bolts 25 and nuts (not shown). According to the above, the insertion tube portion 1 A of the electromagnetic pump device A is connected and supported on the insertion hole tube portion T through the first fastening tape 24, and the casing 10 is connected and supported on the protrusion portion T5 through the second fastening tape 28. Based on this, it has a weight of 23 3 Π / Invention Specification (Supplement) / 92-03 / 91136530 567280, and it is supported in a side-to-side state (the flange portion 1 of the casing 1 〇 must be installed in the pump body 1 mounting flange 1 B) The solenoid portion s is supported by the second fastening band 2 8, so it is particularly preferably mounted on a two-wheeled vehicle that is subject to extreme sliding. However, when such a second fastening tape 28 is used, the fuel tank (described in FIG. 7) used in the vaporizer method needs to be modified, and the protruding portion T5 is provided. However, the metal used in injection molding and blow molding is used. The mold can be engraved equivalent to the protruding portion T5, so the metal mold can be implemented very simply. Next, referring to Fig. 6, another embodiment of the electromagnetic pump device will be described. The same structural elements as those in Fig. 1 are designated by the same reference numerals, and descriptions thereof will be omitted. The fixed iron core 13 fixed to the bottom 10 of the housing 10 penetrates the flow path 13 A from the left end to the right end, and branches upward from the middle of the flow path 13 A to divide the fuel joint 14. The pressure regulator R sandwiches a diaphragm Dc between the regulator body 30 and the cover 31, and divides the fuel chamber Ra and the spring chamber by the diaphragm Dc. In the regulator body 30, an inflow path 32 and an outflow path 33, which are opened in the fuel chamber Rc, are formed, and a valve seat 34 disposed on the open end of the fuel chamber Ra toward the outflow path 33 is moved in synchronization with the diaphragm Dc. The valve body Dd opens and closes. (The pressure regulator R is generally known.) The pressure regulator R is fixed with a male screw formed on the sleeve portion 35 on the outer periphery of the inflow path 32 on the right end of the fixed iron core 13 At this time, the flow path 3a of the fixed core 13 and the inflow path 3 2 of the regulator body 3 are communicated with each other, and the outflow path 3 3 is connected to the second fuel path 1 ρ 24 312 / via the return path 27. Description of the Invention (Supplement) / 92 · 03/91136530 567280 2 Opening 1Fb. According to such an electromagnetic pump device A, since the pressure regulator r and the electromagnetic pump device A are installed integrally in advance, and the return fuel passage 27 can be connected in advance, after the electromagnetic pump device a is installed on the fuel tank τ, only the The fuel pipe 14 and the flow path of the fuel distribution pipe D are connected through the fuel pipe 26, so that the pipe connection operability when the vehicle is installed on a two-wheeled vehicle is greatly improved. In the electromagnetic pump device A itself, since the pipes for the return fuel flowing through the pressure regulator R (the outflow path 33, the return fuel path 27, and the second fuel path 1F) can be collectively arranged, it can be greatly shortened in particular. The path length of the return fuel path 27, especially in vehicles such as two-wheelers, which have open surroundings, not only the piping layout and appearance are good, but also the steam generated in the return fuel path 27 can be reduced, and the fuel tank τ can be reduced. The amount of steam inside. Since the electromagnetic pump device A is removed from the fuel tank T, the electromagnetic pump device (the pump portion P and the solenoid portion S) and the pressure regulator R can be taken out at the same time, so that the maintenance workability can be improved. Since the pressure regulator R is mounted on the electromagnetic pump device A, there is no need to prepare a space for the pressure regulator R around the fuel distribution pipe D. In particular, the vicinity of the internal combustion engine equipped with the fuel distribution pipe D and the fuel injection valve J can be flexibly used. space. As described above, according to the electromagnetic pump device of the fuel supply device for a two-wheeled vehicle according to the present invention, the pump body includes the insertion tube portion extending upward and the mounting flange portion disposed on the side of the insertion tube portion. A solenoid portion is mounted on the aforementioned mounting flange portion, 25 3 Invention Specification (Supplementary) / 92-〇3 / 9113653〇567280 The plunger driven by the solenoid portion is included in the pump body, and the check is stopped by the suction side. The pump is formed by a valve and a discharge-side check valve. The suction path of the pump connected to the suction-side check valve is inserted into the barrel portion and is opened at the upper end portion of the insertion barrel portion. Therefore, it is inserted into a fuel tap having a fuel tank used in a conventional gasifier. By inserting the insertion cylinder portion of the pump body into the hole, an electromagnetic pump device can be installed on the existing fuel tank, and it is easy to change from a gasifier mode to a fuel injection mode. When installing a fuel tank of such an electromagnetic pump device, it is not necessary to find a new fixing portion, and a particularly new type of mounting member for mounting the electromagnetic pump device on the fixing portion is not necessary. Since the pump suction path toward the pump section of the electromagnetic pump device is directly opened and connected to the bottom of the fuel tank, there is no need to connect the inflow pipe and the inflow pipe between the fuel tank and the electromagnetic pump, so by reducing the number of components and The connection operation can reduce the cost. Since there is no inflow piping, it is possible to prevent the piping from being exposed to the outside, especially for vehicles that directly expose the outside such as an electromagnetic pump device such as a two-wheeled vehicle. If the bottom of the fuel tank is opened through the pump suction path, because the pump suction path connected to the pump section is always filled with fuel and does not contain air, regardless of the remaining fuel in the fuel tank, it can be started from the beginning of the electromagnetic pump device. Supply stable fuel immediately. By inserting a second fuel passage in the insertion barrel portion of the pump body toward the upper end surface of the insertion barrel portion inside the insertion barrel portion, it is not necessary to provide a pressure tank for connection of pressure adjustment in the fuel tank used in the conventional gasifier system. It is not necessary to make any changes to the existing fuel tank's pipe section of the fuel return channel 26 312 / Invention Specification (Supplement) / 92-03 / 91136530 567280 and more. The electromagnetic pump device is provided with a fuel joint and a second opening portion of the second fuel passage. Therefore, when the electromagnetic pump device is installed in the fuel tank, the fuel pipe connected to the fuel distribution pipe and the return fuel connected to the pressure regulator. The passage can be connected to the electromagnetic pump device (fuel joint, second opening portion) in common. At this time, since the connection portion is specially designated in the electromagnetic pump device portion, the operability of connecting the fuel pipe and the return fuel passage can be efficiently and easily implemented. . If a discharge member that can open and close these passages is provided on either of the pump suction path or the second fuel path, the fuel in the fuel tank can be opened by opening the pump suction path or the second fuel path through the aforementioned discharge member. It can be reliably removed without flying around, so it is effective when taking out the electromagnetic pump device from the fuel tank and performing its maintenance work. Even if the two-wheeled vehicle has been stored for a long time, the deterioration of the fuel in the fuel tank can be prevented. If a cylindrical filter member connected to the pump suction path is disposed on the upper end surface of the insertion tube portion of the pump body and in the projection plane of the upper end surface, the filter is filtered while the insertion tube portion is inserted into the insertion hole of the fuel tank. The member does not interfere with the insertion hole, and the electromagnetic pump device can be smoothly mounted to the fuel tank. If the casing of the solenoid portion is detachably arranged on the mounting flange portion of the pump body, the casing is taken out from the mounting flange portion, so that the fixed core constituting the solenoid portion and the winding of the electromagnetic winding are wound. The frame, the movable iron core, the plunger constituting the pump portion, and the check valve on the suction side can be taken out from the right end face of the mounting flange portion of the pump body without removing the fuel pump device from the fuel tank. Pieces) / 92-03 / 91136530 567280 to improve the maintenance operability of these components. The pump body insertion tube that is inserted into the insertion hole of the fuel tank is supported by the first fastening band connection, and the casing is supported and supported by the fuel tank by the second fastening band arranged on the outer periphery of the solenoid portion casing. Therefore, especially when a two-wheeled vehicle is used, the electromagnetic pump device can be reliably assembled on the fuel tank under the condition of strict sliding conditions. The fixed iron core constituting the solenoid part is provided with a flow path connected to the pump part, and a pressure regulator is connected to the fixed iron core flow path. This can shorten the length of the return fuel passage. These make the appearance of the two-wheeler exposed in particular better. The steam generated in the return fuel passage can be reduced, and the entry of steam into the fuel tank is effectively suppressed. The pressure regulator is arranged on the electromagnetic pump device. Because these are assembled in advance, the installation workability of the two-wheeled vehicle can be improved, and by removing the pressure regulator from the vicinity of the internal combustion engine, the fuel distribution pipe and fuel injection arranged near the internal combustion engine can be improved. Freedom of valve configuration.
【圖式簡單說明】 I 圖1爲顯示本發明二輪車用燃料供給裝置的電磁泵裝貭 一實施例的主要部分的縱剖面圖。 圖2爲圖1的上部平面圖。 圖3爲電磁泵裝置在燃料槽上的組裝狀態的二輪車用燃 料供給裝置系統圖。 圖4爲第1緊固帶的平面圖。 圖5爲圖4的側面圖。 圖6爲顯示電磁泵裝置其他實施例的主要部分縱剖面 28 312/發明說明書(補件)/92-03/91136530 567280 圖。 圖7爲顯示使用現有氣化器的燃料供給裝置的系統圖。 (元件符號說明） 1 泵體 1 A 插入筒部 1 B 安裝凸緣部 1 B a 環狀凸緣部 1 B b 密封溝 1 B c 右端面 1C 插入筒部1 A的上端面 1 E 泵吸入路 1 E a 開口部 1F 第2燃料通路 lFa 開口部 2 排放構件 3 泵室 4 吸入口 5 排出路 6 吸入側止回閥 7 排出側止回閥 8 柱塞 8 A 固定凸緣部 8B 凹溝 9 托架 29 312/發明說明書(補件)/92-03/91136530 567280 ίο 外殼 I 0 A 開口端 10B 凸緣部 IOC 底部 II 繞組架 12 電磁繞組 13 固定鐵心 1 3 A 流路 14 燃料接頭 1 5 可動鐵心 16 第1彈簧 17 密封構件 18 磁極圓板 19 螺絲 20 第2彈簧 22 過濾構件 23 密封構件 24 第1緊固帶 24A、24B 臂部 25 螺栓 26 燃料管 27 燃料通路 28 第2緊固帶 2 8 A、2 8 B 臂部 312/發明說明書(補件)/92-03/91136530 567280 30 調 整 器 體 3 1 蓋 32 流 入 路 33 流 出 路 34 閥 座 35 軸 套 部 D 燃 料 分 配 管 Da 一 側 流 路 Db 流 路 Dc 隔 膜 Dd 閥 體 J 燃 料 噴 射 閥 P 泵 部 R 壓 力 調 整 器 Ra 燃 料 室 S 螺 線 管 部 T 燃 料 槽 T1 給 油 孔 T2 底 部 T3 插 入 孔 T4 插 入 孔 筒 部 T5 突 出 部[Brief description of the drawings] I FIG. 1 is a longitudinal sectional view of a main part showing an embodiment of an electromagnetic pump assembly of a fuel supply device for a two-wheeled vehicle according to the present invention. FIG. 2 is a top plan view of FIG. 1. Fig. 3 is a system diagram of a fuel supply device for a two-wheeled vehicle in an assembled state of an electromagnetic pump device on a fuel tank. FIG. 4 is a plan view of a first fastening tape. FIG. 5 is a side view of FIG. 4. Fig. 6 is a longitudinal section showing the main part of another embodiment of the electromagnetic pump device 28 312 / Invention Specification (Supplement) / 92-03 / 91136530 567280. FIG. 7 is a system diagram showing a fuel supply device using a conventional gasifier. (Description of component symbols) 1 Pump body 1 A Inserted into the cylinder 1 B Mounting flange 1 B a Ring-shaped flange 1 B b Seal groove 1 B c Right end 1C Inserted into the upper end 1 A of the cylinder 1 E Pump suction Path 1 E a Opening section 1F Second fuel passage 1Fa Opening section 2 Discharge member 3 Pump chamber 4 Suction port 5 Discharge path 6 Suction-side check valve 7 Discharge-side check valve 8 Plunger 8 A Fixed flange 8B Groove 9 Bracket 29 312 / Invention Manual (Supplement) / 92-03 / 91136530 567280 ίο Enclosure I 0 A Open end 10B Flange IOC Bottom II Winding frame 12 Electromagnetic winding 13 Fixed core 1 3 A flow path 14 Fuel connection 1 5 Movable core 16 First spring 17 Seal member 18 Magnetic pole disc 19 Screw 20 Second spring 22 Filter member 23 Seal member 24 First fastening band 24A, 24B Arm portion 25 Bolt 26 Fuel pipe 27 Fuel passage 28 Second fastening With 2 8 A, 2 8 B Arm 312 / Instruction Manual (Supplement) / 92-03 / 91136530 567280 30 Adjuster body 3 1 Cover 32 Inflow path 33 Outflow path 34 Valve seat 35 Bushing section D Fuel distribution pipe Da One side flow path Db flow path Dc diaphragm Dd J in the fuel injection valve P pump section R pressure adjuster Ra fuel chamber S of the solenoid portion T of the fuel tank T1 to the oil hole T2 bottom portion T3 insertion hole T4 insertion hole tubular portion T5 protruded portion
312/發明說明書(補件)/92-03/91136530 31312 / Invention Specification (Supplement) / 92-03 / 91136530 31