JP2005155602A - Fuel supply device - Google Patents

Fuel supply device Download PDF

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Publication number
JP2005155602A
JP2005155602A JP2004223316A JP2004223316A JP2005155602A JP 2005155602 A JP2005155602 A JP 2005155602A JP 2004223316 A JP2004223316 A JP 2004223316A JP 2004223316 A JP2004223316 A JP 2004223316A JP 2005155602 A JP2005155602 A JP 2005155602A
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Japan
Prior art keywords
fuel
lid member
pump
fuel tank
cooling passage
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Pending
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JP2004223316A
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Japanese (ja)
Inventor
Koji Izumitani
浩司 泉谷
Noriya Matsumoto
典也 松本
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Denso Corp
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Denso Corp
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Priority to JP2004223316A priority Critical patent/JP2005155602A/en
Priority to US10/954,745 priority patent/US20050100461A1/en
Priority to DE102004048965A priority patent/DE102004048965A1/en
Publication of JP2005155602A publication Critical patent/JP2005155602A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/44—Filters structurally associated with pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/46—Filters structurally associated with pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/50—Filters arranged in or on fuel tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0686—Mechanical details of the pump control unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5813—Cooling the control unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/10—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot liquids, e.g. lubricants or cooling water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/54—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by air purging means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel supply device with a cooling structure easy to form on a cover member for cooling a circuit part. <P>SOLUTION: The cover member 12 formed of a resin has a flange 13, a lower case 60, an upper case 70, and a cover 90. The lower case 60 and the upper case 70 are joined to each other to form a cooling passage 200. To the cooling passage 200, fuel is supplied from a discharge pipe 46 of a filter case 42 through a bellows pipe 18 and an inflow pipe 62 after discharged by a fuel pump 32. The cover 90 closes the opening of the upper case 70 to form a storage chamber 201 with the upper case 70. With the storage chamber 210 connected at its air outlet side to an intake manifold of an engine, an air flow from an air inlet through the storage chamber 210 to an air outlet is generated in the storage chamber 210 by negative pressure in the intake manifold generated during engine operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、燃料タンク内に収容された燃料ポンプから燃料タンク外へ燃料を供給する燃料供給装置に関する。   The present invention relates to a fuel supply device that supplies fuel from a fuel pump accommodated in a fuel tank to the outside of the fuel tank.

従来、燃料タンク内に燃料ポンプを設置した燃料供給装置において、燃料ポンプに供給する電力を制御する制御回路を、燃料タンクの開口部を塞ぐ蓋部材に設置したものが知られている（例えば特許文献１、２参照）。特許文献１では、特許文献１の図７に示されるように、燃料タンクの開口部を塞ぐ金属製カバーの大気側に制御回路を設置し、金属製カバーの燃料タンク側にリターン燃料を流す燃料溜めを形成している。燃料溜めには金属製カバーに一体に取り付けられたフィンが設置されており、リターン燃料が燃料溜めを流れフィンを濡らして燃料タンク内に戻されることにより、金属製カバーに設置された制御回路が冷却される。
また、特許文献２では、制御回路を有するＦＰＣ（燃料ポンプコントローラ）ユニットをスクリューねじにより蓋部材に取り付けている。 2. Description of the Related Art Conventionally, in a fuel supply apparatus in which a fuel pump is installed in a fuel tank, a control circuit that controls power supplied to the fuel pump is installed on a lid member that closes the opening of the fuel tank (for example, a patent) References 1 and 2). In Patent Document 1, as shown in FIG. 7 of Patent Document 1, a control circuit is installed on the atmosphere side of the metal cover that closes the opening of the fuel tank, and the return fuel flows to the fuel tank side of the metal cover. A reservoir is formed. A fin that is integrally attached to the metal cover is installed in the fuel sump, and the return fuel flows through the fuel sump, wets the fins, and returns to the fuel tank, so that the control circuit installed in the metal cover To be cooled.
Moreover, in patent document 2, the FPC (fuel pump controller) unit which has a control circuit is attached to the cover member with the screw screw.

特公平６−４３８３４号公報Japanese Patent Publication No. 6-43834 特開２００１−２１４８２６号公報JP 2001-214826 A

しかしながら、特許文献１では、燃料タンクの開口部を塞ぐカバーが金属製であるため、金属製カバーに金属製カバーと別体の燃料溜め、ならびに燃料溜めにリターン燃料を導入する配管を接合する作業が煩雑である。また、カバーが金属製であるため、制御回路を冷却する燃料溜めの冷却性能を向上するために金属製カバーにフィン等の冷却構造を形成することが困難である。   However, in Patent Document 1, since the cover that closes the opening of the fuel tank is made of metal, the metal cover is separated from the metal cover and the work for joining the pipe for introducing the return fuel to the fuel reservoir. Is complicated. Further, since the cover is made of metal, it is difficult to form a cooling structure such as fins on the metal cover in order to improve the cooling performance of the fuel reservoir that cools the control circuit.

これらの問題は、言い換えれば、特許文献１では伝熱部材を介して制御回路部を間接的に冷却するので、制御回路部を冷却する構造が複雑になっていることに起因している。
また、特許文献１ではエンジン等の燃料消費装置で消費される燃料の余剰燃料であるリターン燃料により制御回路を冷却するので、燃料消費装置で燃料消費量が増加するとリターン燃料量が減少し、制御回路を十分に冷却できなくなるという問題がある。 In other words, these problems are caused by the fact that the structure for cooling the control circuit section is complicated because the control circuit section is indirectly cooled through the heat transfer member in Patent Document 1.
Further, in Patent Document 1, the control circuit is cooled by return fuel that is surplus fuel consumed by a fuel consuming device such as an engine. Therefore, when the fuel consumption increases by the fuel consuming device, the return fuel amount decreases and the control is performed. There is a problem that the circuit cannot be cooled sufficiently.

また、特許文献２では、蓋部材にＦＰＣユニットを取り付けるために、スクリューねじのような取付部材を用いているので、蓋部材にＦＰＣユニットを取り付ける部品点数が増加する。その結果、蓋部材にＦＰＣユニットを取り付ける工数および製造コストが増加する。また、蓋部材にＦＰＣユニットを取り付ける部品点数が増加するので、蓋部材にＦＰＣユニットを取り付けた構造体が大型化するとともに重量が増加する。   Moreover, in patent document 2, in order to attach an FPC unit to a cover member, since an attachment member like a screw screw is used, the number of parts which attaches an FPC unit to a cover member increases. As a result, the man-hour and manufacturing cost for attaching the FPC unit to the lid member increase. Moreover, since the number of parts for attaching the FPC unit to the lid member increases, the structure in which the FPC unit is attached to the lid member increases in size and weight.

本発明は、上記問題を解決するためになされたものであり、回路部を冷却する冷却構造を蓋部材に容易に形成できる燃料供給装置を提供することを目的とする。
また本発明は、回路部を冷却する燃料量を確保する燃料供給装置を提供することを目的とする。
また本発明は、蓋部材に制御部を取り付ける工数および製造コストを低減し、蓋部材に制御部を取り付けた構造体を小型軽量化する燃料供給装置を提供することを目的とする。 The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a fuel supply device that can easily form a cooling structure for cooling a circuit portion in a lid member.
Another object of the present invention is to provide a fuel supply device that secures an amount of fuel for cooling the circuit portion.
Another object of the present invention is to provide a fuel supply device that reduces the man-hours and manufacturing costs for attaching the control unit to the lid member, and reduces the size and weight of the structure having the control unit attached to the lid member.

請求項１から６記載の発明によると、蓋部材が樹脂で形成されているので、隔壁を介して回路部を冷却するための冷却構造である冷却通路を蓋部材に容易に形成できる。また、蓋部材が樹脂で形成されているので、冷却効率を向上する冷却通路の構造を容易に形成できる。
請求項２および８記載の発明において、燃料ポンプの昇圧部から燃料消費装置へと流れる燃料を冷却通路に供給するとは、燃料消費装置で消費される燃料の余剰燃料、あるいは燃料ポンプから燃料消費装置に供給する燃料の圧力を調圧するときに調圧装置から排出される余剰燃料ではなく、昇圧中の燃料が流れる燃料ポンプの昇圧部の昇圧通路を含み、昇圧通路から燃料ポンプ内を通り燃料ポンプから燃料タンク外の燃料消費装置へと燃料が流れる燃料供給通路から燃料の一部を冷却通路に導入するか、燃料供給通路中に冷却通路を設けることを表している。したがって、燃料消費装置で消費される燃料量が増加しても、回路部を冷却するために必要な燃料量を確保し冷却通路に燃料を供給することができる。 According to the first to sixth aspects of the invention, since the lid member is formed of resin, a cooling passage that is a cooling structure for cooling the circuit portion via the partition can be easily formed in the lid member. Further, since the lid member is made of resin, the structure of the cooling passage that improves the cooling efficiency can be easily formed.
According to the second and eighth aspects of the invention, supplying the fuel flowing from the booster of the fuel pump to the fuel consuming device to the cooling passage means surplus fuel consumed by the fuel consuming device or from the fuel pump to the fuel consuming device. The fuel pump includes a booster passage in the booster part of the fuel pump through which the fuel being boosted flows instead of surplus fuel discharged from the regulator when regulating the pressure of the fuel supplied to the fuel pump, and passes through the fuel pump from the booster passage This indicates that a part of the fuel is introduced into the cooling passage from the fuel supply passage through which the fuel flows from the fuel to the fuel consuming device outside the fuel tank, or a cooling passage is provided in the fuel supply passage. Therefore, even if the amount of fuel consumed by the fuel consuming device increases, it is possible to secure the amount of fuel necessary for cooling the circuit unit and supply the fuel to the cooling passage.

請求項３記載の発明によると、回路部を収容する収容室に空気入口から空気を導入し収容室から空気出口を通り空気を導出させることにより収容室に空気流れを発生させ、空気で回路部を直接冷却する。したがって、燃料に加え空気により回路部を効果的に冷却できる。
請求項４記載の発明によると、回路部と冷却通路との間に介在する隔壁の樹脂材は、樹脂よりも熱伝導率の高い材料を混入しているので、回路部で発生する熱が隔壁を通り冷却通路側に伝達しやすい。したがって、回路部と冷却通路との間に介在する隔壁を樹脂単体で形成する場合に比べ回路部を効果的に冷却できる。 According to a third aspect of the present invention, air is introduced from the air inlet into the housing chamber that houses the circuit portion, and air is led out from the housing chamber through the air outlet, thereby generating an air flow in the housing chamber, and the circuit portion using air. Cool directly. Therefore, the circuit portion can be effectively cooled by air in addition to the fuel.
According to the invention described in claim 4, since the resin material of the partition wall interposed between the circuit portion and the cooling passage is mixed with a material having a higher thermal conductivity than the resin, the heat generated in the circuit portion is generated by the partition wall. Easy to transmit to the cooling passage side. Therefore, the circuit portion can be effectively cooled compared to the case where the partition wall interposed between the circuit portion and the cooling passage is formed of a single resin.

請求項５記載の発明によると、回路部と冷却通路との間に介在する隔壁の樹脂材に混入されている材料の抵抗値を１０6Ω・ｃｍ以上に設定している。したがって、蓋部材の絶縁性を保持しつつ、回路部を効果的に冷却できる。
請求項６記載の発明によると、冷却通路は少なくとも１回折り返しているので、冷却通路の通路長が長くなる。その結果、冷却通路を流れる燃料と冷却通路との接触面積が増加するので、回路部を効果的に冷却できる。 According to the invention described in claim 5, the resistance value of the material mixed in the resin material of the partition wall interposed between the circuit portion and the cooling passage is set to 10 6 Ω · cm or more. Therefore, the circuit portion can be effectively cooled while maintaining the insulating property of the lid member.
According to the sixth aspect of the present invention, since the cooling passage is folded at least once, the passage length of the cooling passage becomes long. As a result, the contact area between the fuel flowing through the cooling passage and the cooling passage increases, so that the circuit portion can be effectively cooled.

請求項７記載の発明によると、回路部を収容する収容室に空気入口から空気を導入し収容室から空気出口を通り空気を導出させることにより収容室に空気流れを発生させ、空気で回路部を直接冷却する。回路部を収容する収容室、ならびに収容室に空気流れを発生する空気入口および空気出口を有する冷却構造は簡単であり、容易に形成できる。   According to the seventh aspect of the present invention, air is introduced from the air inlet into the housing chamber that houses the circuit portion, and the air is led out from the housing chamber through the air outlet, thereby generating an air flow in the housing chamber. Cool directly. A cooling structure having a storage chamber for storing the circuit portion and an air inlet and an air outlet for generating an air flow in the storage chamber is simple and can be easily formed.

請求項９記載の発明によると、燃料ポンプの昇圧部から燃料消費装置へと流れる燃料を冷却通路に供給し、冷却通路の下流側で燃料圧力が調圧されるので、冷却通路の上流側で調圧し調圧後の燃料を冷却通路に導入して回路部を冷却する場合に比べ、燃料消費装置における燃料消費量に関わらず一定量の燃料を冷却通路に供給できる。   According to the ninth aspect of the present invention, the fuel flowing from the boosting portion of the fuel pump to the fuel consuming device is supplied to the cooling passage, and the fuel pressure is regulated downstream of the cooling passage. Compared to the case where the pressure is adjusted and the regulated fuel is introduced into the cooling passage to cool the circuit portion, a constant amount of fuel can be supplied to the cooling passage regardless of the fuel consumption in the fuel consuming device.

請求項１０および１１記載の発明によると、燃料ポンプの昇圧部から空気抜き孔を通り冷却通路に供給される昇圧中の燃料の圧力は、昇圧部で昇圧された後に燃料ポンプから吐出される燃料の圧力よりも低い。さらに、空気抜き孔から冷却通路を通り冷却通路から燃料が流出する燃料通路の任意の位置で通路径を絞ることにより、冷却通路に供給する燃料流量を容易に制御できる。したがって、冷却通路に供給する燃料を低圧化できるとともに、回路部を冷却する能力を低下させない程度に冷却通路を流れる燃料流量を低流量化できる。その結果、冷却通路を形成する通路壁および冷却通路以外の燃料通路を形成する配管の強度を低減し薄肉化できるとともに、冷却通路および配管を小径化できる。   According to the tenth and eleventh aspects of the present invention, the pressure of the fuel under pressure supplied from the booster of the fuel pump through the air vent hole to the cooling passage is increased by the booster in the booster. Lower than pressure. Furthermore, the flow rate of the fuel supplied to the cooling passage can be easily controlled by restricting the passage diameter at an arbitrary position of the fuel passage through which the fuel flows out from the cooling passage through the cooling passage. Therefore, the fuel supplied to the cooling passage can be reduced in pressure, and the flow rate of the fuel flowing through the cooling passage can be reduced to such an extent that the ability to cool the circuit portion is not lowered. As a result, the strength of the passage walls forming the cooling passages and the pipes forming the fuel passages other than the cooling passages can be reduced and the wall thickness can be reduced, and the cooling passages and the pipes can be reduced in diameter.

請求項１２記載の発明では、燃料ポンプに供給する電力を制御する制御回路を有する制御部と燃料タンクの開口を塞ぐ蓋部材とはスナップフィットで結合する。したがって、蓋部材に制御部を取り付けるための部材が不要であり、部品点数が減少する。これにより、蓋部材に制御部を取り付ける工数および製造コストを低減できる。また、部品点数が減少するので、蓋部材に制御部を取り付けた構造体を小型軽量化できる。   In the invention described in claim 12, the control unit having a control circuit for controlling the electric power supplied to the fuel pump and the lid member for closing the opening of the fuel tank are coupled by a snap fit. Therefore, a member for attaching the control unit to the lid member is unnecessary, and the number of parts is reduced. Thereby, the man-hour and manufacturing cost which attach a control part to a cover member can be reduced. Further, since the number of parts is reduced, the structure in which the control unit is attached to the lid member can be reduced in size and weight.

請求項１３記載の発明によると、制御回路を冷却する冷却フィンを制御部に設置しているので、簡単な構造で制御回路を冷却できる。
請求項１４記載の発明によると、蓋部材と、蓋部材とスナップフィットする制御部のケースとは樹脂製であるから、スナップフィットによる結合構造を容易に形成できる。 According to the thirteenth aspect of the present invention, since the cooling fin for cooling the control circuit is installed in the control unit, the control circuit can be cooled with a simple structure.
According to the fourteenth aspect of the present invention, since the lid member and the case of the control unit snap-fitted to the lid member are made of resin, a coupling structure by snap fit can be easily formed.

以下、本発明の複数の実施形態を図に基づいて説明する。
（第１実施形態）
本発明の第１実施形態による燃料供給装置を図１に示す。燃料供給装置１０は、例えば車両の燃料タンク１に設置され、燃料タンク１内の燃料を燃料タンク１の外部の燃料消費装置であるエンジンに供給する燃料供給装置である。燃料供給装置１０の蓋部材１２は、燃料タンク１の開口部１ａを覆っている。蓋部材１２は樹脂材としてＰＯＭ（ポリアセタール）等を使用した樹脂製であり、フランジ１３、下ケース６０、上ケース７０およびカバー９０を有している。フランジ１３、下ケース６０、上ケース７０およびカバー９０は互いに溶着等により結合している。燃料供給装置１０のフランジ１３、下ケース６０、上ケース７０およびカバー９０以外の部品は燃料タンク１内に収容されている。 Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
A fuel supply apparatus according to a first embodiment of the present invention is shown in FIG. The fuel supply device 10 is a fuel supply device that is installed in, for example, a fuel tank 1 of a vehicle and supplies fuel in the fuel tank 1 to an engine that is a fuel consuming device outside the fuel tank 1. The lid member 12 of the fuel supply device 10 covers the opening 1 a of the fuel tank 1. The lid member 12 is made of resin using POM (polyacetal) or the like as a resin material, and includes a flange 13, a lower case 60, an upper case 70, and a cover 90. The flange 13, the lower case 60, the upper case 70, and the cover 90 are connected to each other by welding or the like. Parts other than the flange 13, the lower case 60, the upper case 70, and the cover 90 of the fuel supply device 10 are accommodated in the fuel tank 1.

２本のシャフト１４の一端はフランジ１３に圧入され、他端は樹脂製のサブタンク２０に形成されている図示しない挿入部に緩く挿入されている。スプリング１６の一端は一方のシャフト１４に取り付けたリング１７に係止され、他端はサブタンク２０の挿入部に係止されている。これにより、フランジ１３とポンプモジュール３０が収容されているサブタンク２０とは、燃料タンク１の上下方向へ相対的に往復移動可能である。したがって、燃料供給装置１０が収容される燃料タンク１が温度変化による内圧の変化や燃料量の変化で膨張または収縮しても、サブタンク２０の底部は燃料タンク１の底部内壁に常に押し付けられている。図２に示すように、燃料タンク１内の燃料をサブタンク２０内に導入する流入口２２がサブタンク２０の底部に形成されている。図２では蓋部材１２を省略している。ジェットポンプ２４は流入口２２に取り付けられている。流入口２２の下流側に設置された逆止弁２３は、サブタンク２０内の燃料が流入口２２からサブタンク２０の外側に流出することを防止する。   One end of the two shafts 14 is press-fitted into the flange 13, and the other end is loosely inserted into an insertion portion (not shown) formed in the resin sub tank 20. One end of the spring 16 is locked to a ring 17 attached to one shaft 14, and the other end is locked to an insertion portion of the sub tank 20. Thereby, the flange 13 and the sub tank 20 in which the pump module 30 is accommodated can reciprocate relatively in the vertical direction of the fuel tank 1. Therefore, even if the fuel tank 1 in which the fuel supply device 10 is accommodated expands or contracts due to a change in internal pressure or a change in fuel amount due to a temperature change, the bottom of the sub tank 20 is always pressed against the bottom inner wall of the fuel tank 1. . As shown in FIG. 2, an inlet 22 for introducing the fuel in the fuel tank 1 into the sub tank 20 is formed at the bottom of the sub tank 20. In FIG. 2, the lid member 12 is omitted. The jet pump 24 is attached to the inlet 22. The check valve 23 installed on the downstream side of the inlet 22 prevents the fuel in the sub tank 20 from flowing out of the sub tank 20 from the inlet 22.

ジェットポンプ２４とポンプモジュール３０の燃料ポンプ３２とは、柔軟性を有する２本のナイロン管２６、およびナイロン管２６同士を接続する樹脂製の接続部材２７により接続されている。図３に示すように、ポンプモジュール３０の燃料ポンプ３２は昇圧部３４のインペラ３５が回転することにより、サクションフィルタ３６を通して吸入した燃料をインペラ３５の外周縁に沿って形成された昇圧通路３００で昇圧する。昇圧通路３００の途中に空気抜き孔３０２が形成されており、図２に示すナイロン管２６は取付部材２８によりこの空気抜き孔３０２に接続されている。昇圧通路３００において昇圧中の燃料の一部は、空気抜き孔３０２から取付部材２８、ナイロン管２６、接続部材２７、ナイロン管２６を通りジェットポンプ２４に供給される。ジェットポンプ２４に供給された燃料はジェットノズル２５から流入口２２に向けて噴射される。昇圧通路３００に形成する空気抜き孔３０２の回転方向位置を調整することにより、燃料ポンプ３２からジェットポンプ２４に供給される燃料圧力を調整できる。空気抜き孔３０２は、昇圧中の燃料をジェットポンプ２４に供給するだけでなく、燃料ポンプ３２の始動時において昇圧通路３００の空気を抜く作用を兼ねている。   The jet pump 24 and the fuel pump 32 of the pump module 30 are connected to each other by two flexible nylon pipes 26 and a resin-made connecting member 27 that connects the nylon pipes 26 to each other. As shown in FIG. 3, the fuel pump 32 of the pump module 30 is a booster passage 300 formed along the outer peripheral edge of the impeller 35 by the impeller 35 of the booster 34 rotating to rotate the fuel sucked through the suction filter 36. Boost the pressure. An air vent hole 302 is formed in the boost passage 300, and the nylon tube 26 shown in FIG. 2 is connected to the air vent hole 302 by a mounting member 28. Part of the fuel being pressurized in the pressure increasing passage 300 is supplied from the air vent hole 302 to the jet pump 24 through the mounting member 28, the nylon tube 26, the connecting member 27, and the nylon tube 26. The fuel supplied to the jet pump 24 is injected from the jet nozzle 25 toward the inlet 22. The fuel pressure supplied from the fuel pump 32 to the jet pump 24 can be adjusted by adjusting the rotational direction position of the air vent hole 302 formed in the pressure increasing passage 300. The air vent hole 302 not only supplies the fuel under pressure to the jet pump 24 but also serves to vent the air from the pressure increase passage 300 when the fuel pump 32 is started.

燃料ポンプ３２の昇圧部３４からジェットポンプ２４に噴出燃料を供給する経路はサブタンク２０の側壁２１の上端で折れ曲がっており、接続部材２７はこの折れ曲がり箇所である側壁２１の上端に嵌合している。接続部材２７のサブタンク２０の内側に空気穴２７ａが形成されている。
図１に示すように、ポンプモジュール３０はサブタンク２０内に収容されている。ポンプモジュール３０は、燃料ポンプ３２、サクションフィルタ３６、燃料フィルタ４０およびプレッシャレギュレータ５０を有している。サクションフィルタ３６は燃料ポンプ３２がサブタンク２０から吸入する燃料中の異物を除去する。燃料フィルタ４０は、フィルタケース４２と、フィルタケース４２内に収容されているフィルタエレメント４４とを有し、燃料ポンプ３２の外側を周方向に覆っている。フィルタエレメント４４は燃料ポンプ３２が吐出する燃料中に含まれる異物を除去する。フィルタケース４２の底部に、フィルタエレメント４４で異物を除去された燃料を吐出する吐出管４６が形成されている。吐出管４６は蛇腹管１８により流入管６２と接続している。また、フィルタケース４２の底部側方に導入管４８が形成されている。導入管４８は、蛇腹管１８により蓋部材１２に設けられた導出管６４と接続しており、冷却通路２００から吐出管７２を通り燃料タンク１の外側に供給する燃料の圧力を調圧装置であるプレッシャレギュレータ５０で調圧するために、冷却通路２００からプレッシャレギュレータ５０に燃料を導入する。プレッシャレギュレータ５０は冷却通路２００の下流側に設置されており、フィルタケース４２の底部側方に取り付けられている。プレッシャレギュレータ５０は、導入管４８から導入された燃料から余剰燃料をサブタンク２０内に排出する。 The path for supplying the jet fuel from the booster 34 of the fuel pump 32 to the jet pump 24 is bent at the upper end of the side wall 21 of the sub tank 20, and the connecting member 27 is fitted to the upper end of the side wall 21 that is the bent portion. . An air hole 27 a is formed inside the sub tank 20 of the connecting member 27.
As shown in FIG. 1, the pump module 30 is accommodated in the sub tank 20. The pump module 30 includes a fuel pump 32, a suction filter 36, a fuel filter 40, and a pressure regulator 50. The suction filter 36 removes foreign matters in the fuel sucked from the sub tank 20 by the fuel pump 32. The fuel filter 40 includes a filter case 42 and a filter element 44 accommodated in the filter case 42, and covers the outer side of the fuel pump 32 in the circumferential direction. The filter element 44 removes foreign matters contained in the fuel discharged from the fuel pump 32. A discharge pipe 46 for discharging the fuel from which foreign matter has been removed by the filter element 44 is formed at the bottom of the filter case 42. The discharge pipe 46 is connected to the inflow pipe 62 by the bellows pipe 18. An introduction pipe 48 is formed on the side of the bottom of the filter case 42. The introduction pipe 48 is connected to the lead-out pipe 64 provided on the lid member 12 by the bellows pipe 18, and the pressure of the fuel supplied from the cooling passage 200 to the outside of the fuel tank 1 through the discharge pipe 72 is adjusted by a pressure regulator. In order to adjust the pressure with a certain pressure regulator 50, fuel is introduced into the pressure regulator 50 from the cooling passage 200. The pressure regulator 50 is installed on the downstream side of the cooling passage 200 and is attached to the bottom side of the filter case 42. The pressure regulator 50 discharges surplus fuel from the fuel introduced from the introduction pipe 48 into the sub tank 20.

流入管６２、導出管６４およびコネクタ６６（図５参照）は蓋部材１２の下ケース６０の燃料ポンプ３２側に形成されている。コネクタ６６と燃料ポンプ３２および図示しない液面計とはリード線１９により電気的に接続されている。上ケース７０には吐出管７２およびコネクタ７４が設けられている。下ケース６０と上ケース７０とが結合することにより、冷却通路２００が形成されている。図５に示すように、冷却通路は２００は通路壁２０２に案内され３回折り返されている。カバー９０は上ケース７０の開口を塞ぎ、上ケース７０と収容室２１０を形成している。図６および図７に示すように、冷却通路２００と収容室２１０との間には上ケース７０の隔壁７５が介在している。隔壁７５は冷却通路２００の通路壁でもある。   The inflow pipe 62, the outlet pipe 64, and the connector 66 (see FIG. 5) are formed on the fuel pump 32 side of the lower case 60 of the lid member 12. The connector 66, the fuel pump 32, and a liquid level gauge (not shown) are electrically connected by a lead wire 19. The upper case 70 is provided with a discharge pipe 72 and a connector 74. The cooling case 200 is formed by the lower case 60 and the upper case 70 being joined. As shown in FIG. 5, the cooling passage 200 is guided by the passage wall 202 and turned back three times. The cover 90 closes the opening of the upper case 70 and forms the upper case 70 and the storage chamber 210. As shown in FIGS. 6 and 7, a partition wall 75 of the upper case 70 is interposed between the cooling passage 200 and the storage chamber 210. The partition wall 75 is also a passage wall of the cooling passage 200.

図１に示すように、冷却通路２００には、フィルタケース４２の吐出管４６から蛇腹管１８、流入管６２を通り燃料が供給される。冷却通路２００を通過した燃料は吐出管７２から燃料タンク１の外部に供給される。
図４に示すように、蓋部材１２を構成する上ケース７０には、収容室２１０と接続する空気入口７６および空気出口７８が設けられている。空気入口７６側を大気開放し、空気出口７８側をゴム管等で例えばエンジンのインテークマニホールドと接続することにより、エンジン運転中に発生するインテークマニホールド内の負圧により、空気入口７６から収容室２１０を通り空気出口７８に向かう空気流れが収容室２１０に発生する。 As shown in FIG. 1, fuel is supplied to the cooling passage 200 from the discharge pipe 46 of the filter case 42 through the bellows pipe 18 and the inflow pipe 62. The fuel that has passed through the cooling passage 200 is supplied from the discharge pipe 72 to the outside of the fuel tank 1.
As shown in FIG. 4, the upper case 70 constituting the lid member 12 is provided with an air inlet 76 and an air outlet 78 that are connected to the accommodation chamber 210. The air inlet 76 side is opened to the atmosphere, and the air outlet 78 side is connected to, for example, an intake manifold of the engine with a rubber tube or the like. And an air flow toward the air outlet 78 is generated in the storage chamber 210.

収容室２１０に、ＩＣ（Integrated Circuit、集積回路)８０、コンデンサ８２、コイル８４が収容されている。回路部してのＩＣ８０は、燃料ポンプ３２に供給する電力を制御するポンプ制御回路、ならびに図示しない液面計の作動を制御するとともに液面計が出力する検出信号を処理する液面計制御回路を１パッケージに収容している。ＩＣ８０の下面は隔壁７５に接触しており、ＩＣ８０の上面にフィン８６が接着等により取り付けられている。   An IC (Integrated Circuit) 80, a capacitor 82, and a coil 84 are accommodated in the accommodation chamber 210. The IC 80 serving as a circuit unit is a pump control circuit that controls the power supplied to the fuel pump 32, and a liquid level meter control circuit that controls the operation of a liquid level meter (not shown) and processes a detection signal output from the liquid level meter Are housed in one package. The lower surface of the IC 80 is in contact with the partition wall 75, and the fins 86 are attached to the upper surface of the IC 80 by adhesion or the like.

蓋部材１２のうち少なくとも冷却通路２００とＩＣ８０との間に介在する隔壁７５を有する上ケース７０は、熱伝導率を高めるため、ＰＯＭにＰＯＭよりも熱伝導率の高いガラスファイバーやフェライトパウダー等の材料を混入して形成されている。例えば、重量比で２５％のガラスファイバーをＰＯＭに混入することにより、ＰＯＭ単体では０．２８Ｗ／ｍ・Ｋの熱伝導率が０．３３Ｗ／ｍ・Ｋに上昇する。ＰＯＭ単体では体積抵抗率は１０8Ω・ｃｍであるが、上ケース７０を構成する樹脂材に熱伝導率を高めるために混入する材料の抵抗値は、電気的な絶縁材として上ケース７０が作用するために、体積抵抗値として１０6Ω・ｃｍ以上であることが望ましい。 The upper case 70 having the partition wall 75 interposed at least between the cooling passage 200 and the IC 80 in the lid member 12 is made of glass fiber or ferrite powder having a higher thermal conductivity than the POM. It is formed by mixing materials. For example, when 25% by weight of glass fiber is mixed in POM, the thermal conductivity of 0.28 W / m · K increases to 0.33 W / m · K in the case of POM alone. Although the volume resistivity of POM alone is 10 8 Ω · cm, the resistance value of the material mixed in the resin material constituting the upper case 70 to increase the thermal conductivity is determined by the upper case 70 as an electrical insulating material. In order to act, it is desirable that the volume resistance value is 10 6 Ω · cm or more.

燃料ポンプ３２の作動にともないＩＣ８０が燃料ポンプ３２に供給する電力を制御すると、ＩＣ８０に熱が発生する。本実施形態では、燃料ポンプ３２が吐出した燃料が冷却通路２００を流れることにより、隔壁７５を介してＩＣ８０が冷却される。さらに、冷却通路は２００は通路壁２０２により３回折り返されているので、冷却通路２００の通路長が長くなる。これにより、冷却通路２００を形成する通路壁と燃料との接触面積が増加するので、隔壁７５を介してＩＣ８０を効果的に冷却できる。また、冷却通路２００が折れ曲がり冷却通路２００の通路面積が小さくなっているので、冷却通路２００を流れる燃料の流速が速くなっている。これにより、新しい燃料が次々に冷却通路２００を通過し冷却通路２００を形成する樹脂材を冷却するので、隔壁７５に接触しているＩＣ８０を効果的に冷却できる。   When the IC 80 controls the power supplied to the fuel pump 32 in accordance with the operation of the fuel pump 32, heat is generated in the IC 80. In the present embodiment, the fuel discharged from the fuel pump 32 flows through the cooling passage 200, whereby the IC 80 is cooled via the partition wall 75. Furthermore, since the cooling passage 200 is folded three times by the passage wall 202, the passage length of the cooling passage 200 becomes longer. As a result, the contact area between the passage wall forming the cooling passage 200 and the fuel increases, so that the IC 80 can be effectively cooled via the partition wall 75. Further, since the cooling passage 200 is bent and the passage area of the cooling passage 200 is reduced, the flow rate of the fuel flowing through the cooling passage 200 is increased. Thereby, since the new fuel passes through the cooling passage 200 one after another and the resin material forming the cooling passage 200 is cooled, the IC 80 in contact with the partition wall 75 can be effectively cooled.

また、インテークマニホールドの負圧により空気入口７６から収容室２１０を通り空気出口７８に向かう燃料流れが発生するので、収容室２１０の空気流れによりＩＣ８０が直接冷却される。
第１実施形態では、蓋部材１２を樹脂で形成したので、回路部としてのＩＣ８０を冷却する冷却通路２００および収容室２１０を容易に形成できる。さらに、冷却効果を向上させるために、例えば本実施形態のように冷却通路２００を３回折り返すという複雑な構造を容易に形成できる。 Further, since the fuel flow from the air inlet 76 to the air outlet 78 is generated by the negative pressure of the intake manifold toward the air outlet 78, the IC 80 is directly cooled by the air flow in the storage chamber 210.
In the first embodiment, since the lid member 12 is formed of resin, the cooling passage 200 and the accommodation chamber 210 for cooling the IC 80 as the circuit unit can be easily formed. Furthermore, in order to improve the cooling effect, for example, a complicated structure in which the cooling passage 200 is folded three times as in the present embodiment can be easily formed.

また第１実施形態では、冷却通路２００の下流側に設置したプレッシャレギュレータ５０で燃料圧力を調圧し余剰燃料をサブタンク２０内に戻しているので、エンジン側での燃料消費量に関わらず、十分量の燃料を燃料ポンプ３２から冷却通路２００に供給できる。したがって、ＩＣ８０の冷却効果が向上する。   Further, in the first embodiment, the fuel pressure is adjusted by the pressure regulator 50 installed on the downstream side of the cooling passage 200 and the surplus fuel is returned into the sub tank 20, so that a sufficient amount is obtained regardless of the fuel consumption on the engine side. The fuel can be supplied from the fuel pump 32 to the cooling passage 200. Therefore, the cooling effect of the IC 80 is improved.

（第２実施形態）
本発明の第２実施形態を図８に示す。尚、第１実施形態と実質的に同一構成部分には同一符号を付す。
燃料供給装置１００の蓋部材１０２は、燃料タンク１の開口部１ａを覆っている。蓋部材１０２は樹脂材としてＰＯＭ（ポリアセタール）等を使用した樹脂製であり、フランジ１０４、下ケース１１０、上ケース１２０、およびカバー９０を有している。冷却通路２００と収容室２１０との間には上ケース１２０の隔壁１２２が介在している。ＩＣ８０の下面は隔壁１２２に接触している。 (Second Embodiment)
A second embodiment of the present invention is shown in FIG. In addition, the same code | symbol is attached | subjected to the substantially same component as 1st Embodiment.
The lid member 102 of the fuel supply device 100 covers the opening 1 a of the fuel tank 1. The lid member 102 is made of resin using POM (polyacetal) or the like as a resin material, and includes a flange 104, a lower case 110, an upper case 120, and a cover 90. A partition wall 122 of the upper case 120 is interposed between the cooling passage 200 and the storage chamber 210. The lower surface of the IC 80 is in contact with the partition wall 122.

フィルタケース４２の底部に形成されている吐出管４６と、フランジ１０４に形成されている吐出管１０５とは蛇腹管１８により接続されている。プレッシャレギュレータ５０で調圧された燃料は吐出管４６、蛇腹管１８を通り吐出管１０５からエンジン側に供給される。
燃料ポンプ３２の空気抜き孔３０２（図３参照）に接続する取付部材２８と、下ケース１１０に形成された導入管１１２とはナイロン管２６により接続されている。これにより、昇圧通路３００で昇圧中の燃料は、取付部材２８、ナイロン管２６、導入管１１２を通り冷却通路２００に導入される。冷却通路２００を流れた燃料はジェットポンプ２４（図２参照）に供給される。 The discharge pipe 46 formed on the bottom of the filter case 42 and the discharge pipe 105 formed on the flange 104 are connected by the bellows pipe 18. The fuel regulated by the pressure regulator 50 passes through the discharge pipe 46 and the bellows pipe 18 and is supplied from the discharge pipe 105 to the engine side.
The attachment member 28 connected to the air vent hole 302 (see FIG. 3) of the fuel pump 32 and the introduction pipe 112 formed in the lower case 110 are connected by a nylon pipe 26. As a result, the fuel being pressurized in the pressure increasing passage 300 is introduced into the cooling passage 200 through the attachment member 28, the nylon tube 26, and the introduction tube 112. The fuel that has flowed through the cooling passage 200 is supplied to the jet pump 24 (see FIG. 2).

第２実施形態では、燃料ポンプ３２の昇圧部３４において昇圧中の燃料の一部を冷却通路２００に供給するので、エンジンで消費する燃料量に関わらず、隔壁１２２を介してＩＣ８０を冷却するために必要な燃料量を冷却通路２００に供給できる。また、空気抜き孔３０２から導出される燃料の圧力は、昇圧部３４で昇圧された後に燃料ポンプ３２から吐出される燃料に比べ低圧である。さらに、冷却通路２００を流れた燃料が供給されるジェットノズル２５のノズル径を調整することにより、昇圧部３４から冷却通路２００に供給される燃料量を制御できる。その結果、燃料ポンプ３２から吐出される燃料に比べ低圧で低流量の燃料を冷却通路２００に供給できる。したがって、冷却通路２００を形成する通路壁およびナイロン管２６の強度を低下して薄肉化できるとともに、ナイロン管２６および冷却通路２００を小径化できる。ジェットノズル２５のノズル径に限らず、空気抜き孔３０２、冷却通路２００を通り冷却通路２００から燃料が流出する燃料通路の任意の位置で通路径を絞ることにより、空気抜き孔３０２から冷却通路２００に供給する燃料量を制御できる。   In the second embodiment, a part of the fuel whose pressure is being increased in the pressure increasing unit 34 of the fuel pump 32 is supplied to the cooling passage 200, so that the IC 80 is cooled via the partition wall 122 regardless of the amount of fuel consumed by the engine. The amount of fuel necessary for this can be supplied to the cooling passage 200. Further, the pressure of the fuel led out from the air vent hole 302 is lower than the fuel discharged from the fuel pump 32 after being boosted by the booster 34. Furthermore, by adjusting the nozzle diameter of the jet nozzle 25 to which the fuel that has flowed through the cooling passage 200 is supplied, the amount of fuel supplied to the cooling passage 200 from the booster 34 can be controlled. As a result, fuel having a lower pressure and a lower flow rate than the fuel discharged from the fuel pump 32 can be supplied to the cooling passage 200. Therefore, the strength of the passage wall forming the cooling passage 200 and the nylon tube 26 can be reduced to reduce the thickness, and the nylon tube 26 and the cooling passage 200 can be reduced in diameter. Not only the nozzle diameter of the jet nozzle 25 but also the air passage hole 302 and the cooling passage 200 that pass through the cooling passage 200, the passage diameter is reduced at any position of the fuel passage to supply the cooling passage 200 to the cooling passage 200. The amount of fuel to be controlled can be controlled.

（第３実施形態）
本発明の第３実施形態を図９から図１２に示す。尚、第１実施形態と実質的に同一構成部分には同一符号を付す。
図９に示すように、燃料供給装置１３０の蓋部材１３２は、燃料タンク１の開口部１ａを覆っている。蓋部材１３２は樹脂材としてＰＯＭ（ポリアセタール）等を使用した樹脂製であり、図１０に示すように、フランジ１３４、吐出管１３６、ポンプコネクタ１３８、液面計コネクタ１４０、スナップフィット用の爪１４２等を有している。 (Third embodiment)
A third embodiment of the present invention is shown in FIGS. In addition, the same code | symbol is attached | subjected to the substantially same component as 1st Embodiment.
As shown in FIG. 9, the lid member 132 of the fuel supply device 130 covers the opening 1 a of the fuel tank 1. The lid member 132 is made of resin using POM (polyacetal) or the like as a resin material. As shown in FIG. 10, the flange 134, the discharge pipe 136, the pump connector 138, the level gauge connector 140, and the snap-fit claw 142. Etc.

図９に示すように、フィルタケース４２の底部に形成されている吐出管４６と、フランジ１３４に形成されている吐出管１３６とは蛇腹管１８により接続されている。燃料ポンプ３２とポンプコネクタ１３８、ならびに図示しない液面計と液面計コネクタ１４０とはリード線１９で接続されている。
制御部１５０は、蓋部材１３２の燃料タンク１の外側に設置され、図１１に示すように、ケース１５２、接続コネクタ１５６、１５８、制御回路１６０、コイル１６２、コンデンサ１６４、冷却フィン１６６（図９参照）を有している。 As shown in FIG. 9, the discharge pipe 46 formed at the bottom of the filter case 42 and the discharge pipe 136 formed on the flange 134 are connected by the bellows pipe 18. The fuel pump 32 and the pump connector 138 as well as a liquid level gauge and a liquid level gauge connector 140 (not shown) are connected by a lead wire 19.
The control unit 150 is installed outside the fuel tank 1 of the lid member 132, and as shown in FIG. 11, a case 152, connection connectors 156 and 158, a control circuit 160, a coil 162, a capacitor 164, and a cooling fin 166 (FIG. 9). See).

四角形状のケース１５２は樹脂製であり、制御回路１６０、コイル１６２、コンデンサ１６４を収容し、対角線方向の角部の外側に、それぞれ窓部１５４を設けている。図９に示すように、窓部１５４と、フランジ１３４に設けた爪１４２とがスナップフィットで結合することにより、蓋部材１３２に制御部１５０が取り付けられている。   The rectangular case 152 is made of resin, accommodates the control circuit 160, the coil 162, and the capacitor 164, and is provided with windows 154 on the outside of the diagonal corners. As shown in FIG. 9, the control unit 150 is attached to the lid member 132 by coupling the window 154 and the claw 142 provided on the flange 134 by snap fitting.

接続コネクタ１５６は、蓋部材１３２に設けたポンプコネクタ１３８と電気的に接続する。具体的には、図１２に示すように、ポンプコネクタ１３８のポンプ端子１３９と、接続コネクタ１５６の接続端子１５７とが、雌端子１７０を介して電気的に接続している。ポンプ端子１３９または接続端子１５７の一方に予め雌端子１７０を接続した状態で、窓部１５４と爪１４２とをスナップフィット結合すると、ポンプ端子１３９または接続端子１５７の他方が雌端子１７０と接続し、雄端子同士のポンプ端子１３９と接続端子１５７とが電気的に接続する。接続コネクタ１５８は、車両側のハーネスと電気的に接続する。制御回路１６０は、接続コネクタ１５６と接続コネクタ１５８との間に電気的に介在している。
冷却フィン１６６は、ケース１５２に接着剤等で結合されており、ケース１５２の開口を覆っている。 The connection connector 156 is electrically connected to the pump connector 138 provided on the lid member 132. Specifically, as shown in FIG. 12, the pump terminal 139 of the pump connector 138 and the connection terminal 157 of the connection connector 156 are electrically connected via the female terminal 170. When the female terminal 170 is connected in advance to one of the pump terminal 139 and the connection terminal 157, when the window 154 and the claw 142 are snap-fit coupled, the other of the pump terminal 139 or the connection terminal 157 is connected to the female terminal 170, The pump terminal 139 and the connection terminal 157 of the male terminals are electrically connected. The connection connector 158 is electrically connected to a harness on the vehicle side. The control circuit 160 is electrically interposed between the connection connector 156 and the connection connector 158.
The cooling fin 166 is coupled to the case 152 with an adhesive or the like, and covers the opening of the case 152.

第３実施形態では、燃料タンク１の開口部１ａを塞ぐ蓋部材１３２と制御回路１６０を有する制御部１５０とがスナップフィットで結合するので、蓋部材１３２に制御部１５０を取り付けるための部材が不要である。これにより、部品点数が減少するので、蓋部材１３２に制御部１５０を取り付ける工数が低減し、製造コストを低減できる。また、蓋部材１３２に制御部１５０を取り付ける部品点数が減少するので、蓋部材１３２に制御部１５０を取り付けた構造体を小型軽量化できる。   In the third embodiment, since the lid member 132 that closes the opening 1a of the fuel tank 1 and the control unit 150 having the control circuit 160 are coupled by snap fit, a member for attaching the control unit 150 to the lid member 132 is unnecessary. It is. Thereby, since the number of parts decreases, the man-hour which attaches the control part 150 to the cover member 132 reduces, and manufacturing cost can be reduced. In addition, since the number of parts for attaching the control unit 150 to the lid member 132 is reduced, the structure in which the control unit 150 is attached to the lid member 132 can be reduced in size and weight.

また、蓋部材１３２と制御部１５０とがスナップフィットする箇所の肉厚を調整することにより、車両の衝突のような大きな衝撃が加わるときに、スナップフィットの結合箇所を破損させ、蓋部材１３２から制御部１５０を切り離すことができる。これにより、大きな衝撃が加わっても、蓋部材１３２のフランジ１３４の破損を防止し、蓋部材１３２の破損箇所から燃料が漏れ出すことを防止できる。
第３実施形態では、制御回路１６０を冷却する冷却フィン１６６を制御部１５０に設置しているので、簡単な構造で制御回路１６０を冷却できる。 Further, by adjusting the thickness of the portion where the lid member 132 and the control unit 150 snap fit, when a large impact such as a vehicle collision is applied, the snap fit coupling portion is damaged, The control unit 150 can be disconnected. Accordingly, even if a large impact is applied, the flange 134 of the lid member 132 can be prevented from being damaged, and the fuel can be prevented from leaking from the damaged portion of the lid member 132.
In the third embodiment, since the cooling fins 166 for cooling the control circuit 160 are installed in the control unit 150, the control circuit 160 can be cooled with a simple structure.

上記複数の実施形態では、燃料ポンプ３２に供給する電力を制御する制御回路を燃料タンクの開口を塞ぐ蓋部材に設置している。したがって、車両に燃料供給装置を搭載する場合、制御回路と車両のラジオアンテナとの距離が遠くなるとともに、制御回路とラジオアンテナとの間に車両の金属ボディが存在する。その結果、制御回路がＰＷＭ(Pulse Width Modulation)により燃料ポンプ３２に供給する電力を制御する場合、ＰＷＭ制御による矩形波が金属ボディにシールドされるので、ＰＷＭ制御によるラジオノイズがラジオアンテナに発生することを防止できる。   In the above embodiments, the control circuit for controlling the power supplied to the fuel pump 32 is installed on the lid member that closes the opening of the fuel tank. Therefore, when the fuel supply device is mounted on the vehicle, the distance between the control circuit and the radio antenna of the vehicle becomes long, and the metal body of the vehicle exists between the control circuit and the radio antenna. As a result, when the control circuit controls the electric power supplied to the fuel pump 32 by PWM (Pulse Width Modulation), a rectangular wave by PWM control is shielded by the metal body, so that radio noise by PWM control is generated in the radio antenna. Can be prevented.

（他の実施形態）
本発明の上記第１実施形態および第２実施形態では、冷却通路２００を流れる燃料、ならびに収容室２１０を流れる空気により回路部としてのＩＣ８０を冷却した。これに対し、特許請求の範囲の請求項１に記載した発明として、収容室２１０に空気流れを発生させず、冷却通路２００を流れる燃料だけでＩＣ８０を冷却してもよい。また、冷却通路２００に燃料ではなく空気を流し隔壁７５を介してＩＣ８０を冷却してもよい。また、蓋部材を樹脂で形成するのであれば、冷却通路２００に供給する燃料は、エンジン側からリターンされる余剰燃料でもよいし、プレッシャレギュレータ５０で燃料を調圧するときに排出される余剰燃料でもよい。 (Other embodiments)
In the first embodiment and the second embodiment of the present invention, the IC 80 as a circuit unit is cooled by the fuel flowing through the cooling passage 200 and the air flowing through the storage chamber 210. On the other hand, as an invention described in claim 1 of the claims, the IC 80 may be cooled only by the fuel flowing through the cooling passage 200 without generating an air flow in the storage chamber 210. In addition, the IC 80 may be cooled via the partition wall 75 by flowing air instead of fuel in the cooling passage 200. If the lid member is made of resin, the fuel supplied to the cooling passage 200 may be surplus fuel returned from the engine side, or surplus fuel discharged when the pressure regulator 50 regulates the fuel. Good.

また、特許請求の範囲の請求項８に記載した発明として、燃料ポンプ３２の昇圧部３４からエンジンへと流れる燃料を冷却通路２００に供給しＩＣ８０を冷却するのであれば、蓋部材を樹脂に限らず、例えば金属で形成してもよい。ここで、燃料ポンプ３２の昇圧部３４からエンジンへと流れる燃料とは、エンジン側からリターンされる余剰燃料、またはプレッシャレギュレータ５０で調圧するときにプレッシャレギュレータ５０から排出される余剰燃料ではなく、燃料ポンプ３２の昇圧部３４の昇圧通路３００を含み、昇圧通路３００の下流側の燃料ポンプ３２、燃料フィルタ４０を通り燃料タンク１内から燃料タンク１外のエンジンへと燃料を供給する燃料供給通路を流れる燃料を意味する。この燃料供給通路から燃料の一部を導出し冷却通路２００に供給してもよいし、燃料供給通路中に冷却通路２００を設けてもよい。例えば第１実施形態では、冷却通路２００の下流側に設置されポンプモジュール３０に設けたプレッシャレギュレータ５０で燃料圧力を調圧したが、冷却通路２００の上流側にプレッシャレギュレータ５０を設け、プレッシャレギュレータ５０で調圧された燃料を冷却通路２００に供給してもよい。また、燃料タンク１からエンジンに燃料を供給する配管から燃料の一部を冷却通路２００に導入してもよい。   Further, as an invention described in claim 8 of the claims, if the IC 80 is cooled by supplying the fuel flowing from the booster 34 of the fuel pump 32 to the engine to the cooling passage 200, the lid member is limited to resin. For example, you may form with a metal. Here, the fuel flowing from the booster 34 of the fuel pump 32 to the engine is not surplus fuel returned from the engine side or surplus fuel discharged from the pressure regulator 50 when the pressure regulator 50 regulates the fuel. A fuel supply passage that includes a pressure increasing passage 300 of the pressure increasing portion 34 of the pump 32 and that supplies fuel from the fuel tank 1 to the engine outside the fuel tank 1 through the fuel pump 32 and the fuel filter 40 on the downstream side of the pressure increasing passage 300. Means flowing fuel. A part of the fuel may be led out from the fuel supply passage and supplied to the cooling passage 200, or the cooling passage 200 may be provided in the fuel supply passage. For example, in the first embodiment, the fuel pressure is regulated by the pressure regulator 50 installed on the downstream side of the cooling passage 200 and provided on the pump module 30, but the pressure regulator 50 is provided on the upstream side of the cooling passage 200, and the pressure regulator 50 The pressure-adjusted fuel may be supplied to the cooling passage 200. A part of the fuel may be introduced into the cooling passage 200 from a pipe that supplies fuel from the fuel tank 1 to the engine.

また、特許請求の範囲の請求項９に記載した発明として、冷却通路２００の下流側でエンジンに供給する燃料圧力が調圧されるのであれば、冷却通路２００の下流側のエンジン側配管にプレッシャレギュレータ５０を設け、これにより燃料圧力を調圧してもよい。
また、特許請求の範囲の請求項７に記載した発明として、燃料を流す冷却通路を蓋部材に設けず、収容室２１０を流れる空気だけでＩＣ８０を直接冷却してもよい。この場合、蓋部材を樹脂ではなく金属で形成してもよい。 According to the ninth aspect of the present invention, if the fuel pressure supplied to the engine is regulated downstream of the cooling passage 200, the pressure is applied to the engine side piping downstream of the cooling passage 200. A regulator 50 may be provided to regulate the fuel pressure.
Further, as an invention described in claim 7 of the claims, the IC 80 may be directly cooled only by air flowing through the housing chamber 210 without providing a cooling passage through which fuel flows in the lid member. In this case, the lid member may be formed of metal instead of resin.

上記第１実施形態および第２実施形態では、燃料ポンプ３２のポンプ制御回路と、液面計の液面計制御回路とを有する１パッケージのＩＣ８０を収容室２１０に収容したが、本発明では、少なくともポンプ制御回路で回路部を構成すればよい。
また、上記実施形態では、冷却通路２００とＩＣ８０との間に介在する隔壁７５を有する上ケース７０、１２０の熱伝導率を高めるため、ＰＯＭ等の樹脂材に樹脂よりも熱伝導率の高いグラスファイバーまたはフェライトパウダー等の材料を混入したが、上ケース７０、１２０と冷却通路２００を形成する下ケース６０、１１０ならびに上ケース７０、１２０と収容室２１０を形成するカバー９０も、樹脂よりも熱伝導率の高い材料を樹脂材に混入し熱伝導率を高めてもよい。また、蓋部材全体を樹脂のみで構成してもよい。
上記第３実施形態では、制御部１５０のケース１５２および蓋部材１３２を樹脂で形成したが、制御部と蓋部材がスナップフィトするのであれば、樹脂ではなく、例えば金属で制御部のケースおよび蓋部材を形成してもよい。 In the first embodiment and the second embodiment, one package IC 80 having the pump control circuit of the fuel pump 32 and the liquid level gauge control circuit of the liquid level gauge is accommodated in the accommodation chamber 210. In the present invention, What is necessary is just to comprise a circuit part by a pump control circuit at least.
Moreover, in the said embodiment, in order to raise the heat conductivity of upper case 70 and 120 which has the partition 75 interposed between the cooling path 200 and IC80, glass with higher heat conductivity than resin is used for resin materials, such as POM. Although materials such as fiber or ferrite powder are mixed, the lower cases 60 and 110 that form the cooling passage 200 with the upper cases 70 and 120 and the cover 90 that forms the accommodation chamber 210 with the upper cases 70 and 120 are also heated more than the resin. A material having high conductivity may be mixed into the resin material to increase the thermal conductivity. Moreover, you may comprise the whole cover member only with resin.
In the third embodiment, the case 152 and the lid member 132 of the control unit 150 are made of resin. However, if the control unit and the lid member snap fit, the case and lid of the control unit are made of metal instead of resin, for example. A member may be formed.

（Ａ）は本発明の第１実施形態による燃料供給装置を示す平面図であり、（Ｂ）は（Ａ）のＢ方向からみた部分断面図である。(A) is a top view which shows the fuel supply apparatus by 1st Embodiment of this invention, (B) is the fragmentary sectional view seen from the B direction of (A). 第１実施形態の燃料供給装置のジェットポンプを含む断面図である。It is sectional drawing containing the jet pump of the fuel supply apparatus of 1st Embodiment. 燃料ポンプの部分断面図である。It is a fragmentary sectional view of a fuel pump. 図１の（Ａ）からフランジおよびカバーを除き上ケースの開口側から収容室を見た平面図である。It is the top view which looked at the storage chamber from the opening side of the upper case except a flange and a cover from (A) of FIG. 図６のＶ方向矢視図である。It is a V direction arrow directional view of FIG. 図４においてカバーで上ケースの開口を塞ぎVI方向から見た冷却通路および収容室を示す断面図である。FIG. 5 is a cross-sectional view showing a cooling passage and a storage chamber viewed from the VI direction by closing the opening of the upper case with a cover in FIG. 4. 図４においてカバーで上ケースの開口を塞ぎVII方向から見た冷却通路および収容室を示す断面図である。FIG. 5 is a cross-sectional view showing a cooling passage and a storage chamber viewed from the VII direction by closing the opening of the upper case with a cover in FIG. 4. （Ａ）は本発明の第２実施形態による燃料供給装置を示す平面図であり、（Ｂ）は（Ａ）のＢ方向からみた部分断面図である。(A) is a top view which shows the fuel supply apparatus by 2nd Embodiment of this invention, (B) is the fragmentary sectional view seen from the B direction of (A). （Ａ）は本発明の第３実施形態による燃料供給装置を示す平面図であり、（Ｂ）は（Ａ）のＢ方向からみた部分断面図である。(A) is a top view which shows the fuel supply apparatus by 3rd Embodiment of this invention, (B) is the fragmentary sectional view seen from the B direction of (A). 第３実施形態において制御部を取り除いた状態の蓋部材を燃料タンクの外側から見た平面図である。It is the top view which looked at the cover member in the state where the control part was removed in a 3rd embodiment from the outside of a fuel tank. 第３実施形態において冷却フィンを取り除いた状態の制御部を燃料タンクの外側から見た平面図である。It is the top view which looked at the control part of the state which removed the cooling fin in 3rd Embodiment from the outer side of the fuel tank. 第３実施形態によるポンプ端子と接続端子との接続状態を示す断面図である。It is sectional drawing which shows the connection state of the pump terminal and connection terminal by 3rd Embodiment.

符号の説明Explanation of symbols

１ 燃料タンク、１ａ 開口部、１０、１００、１３０ 燃料供給装置、１２、１０２、１３２ 蓋部材、１３、１０４、１３４ フランジ（蓋部材）、２４ ジェットポンプ、３０ ポンプモジュール、３２ 燃料ポンプ、３４ 昇圧部、３５ インペラ、６０、１１０ 下ケース（蓋部材）、７０、１２０ 上ケース（蓋部材）、７５ 隔壁、７６ 空気入口、７８ 空気出口、８０ ＩＣ（回路部）、９０ カバー（蓋部材）、１３８ ポンプコネクタ、１３９ ポンプ端子、１４２ 爪、１５０ 制御部、１５４ 窓部、１５６、１５８ 接続コネクタ、１５７ 接続端子、１６０ 制御回路、１６６ 冷却フィン、１７０ 雌端子、２００ 冷却通路、２１０ 収容室、３００ 昇圧通路、３０２ 空気抜き孔 DESCRIPTION OF SYMBOLS 1 Fuel tank, 1a Opening part 10, 100, 130 Fuel supply apparatus, 12, 102, 132 Lid member, 13, 104, 134 Flange (lid member), 24 Jet pump, 30 Pump module, 32 Fuel pump, 34 Pressure | voltage rise Part, 35 impeller, 60, 110 lower case (lid member), 70, 120 upper case (lid member), 75 partition, 76 air inlet, 78 air outlet, 80 IC (circuit part), 90 cover (lid member), 138 Pump connector, 139 Pump terminal, 142 Claw, 150 Control part, 154 Window part, 156, 158 Connection connector, 157 Connection terminal, 160 Control circuit, 166 Cooling fin, 170 Female terminal, 200 Cooling passage, 210 Storage chamber, 300 Boost passage, 302 air vent

Claims (14)

燃料タンク内の燃料を前記燃料タンク外の燃料消費装置へと供給する燃料供給装置であって、
前記燃料タンクに形成されている開口部を覆う蓋部材と、
前記燃料タンク内に設置され前記燃料タンク内の燃料を吸入し吐出する電気駆動式の燃料ポンプと、
前記蓋部材に設置されており、前記燃料ポンプに供給する電力を制御する制御回路を有する回路部と、
を備え、
前記蓋部材は樹脂製であり、隔壁を介して前記回路部を冷却する冷却通路を有していることを特徴とする燃料供給装置。 A fuel supply device for supplying fuel in a fuel tank to a fuel consuming device outside the fuel tank,
A lid member covering an opening formed in the fuel tank;
An electrically driven fuel pump installed in the fuel tank and sucking and discharging the fuel in the fuel tank;
A circuit unit that is installed in the lid member and has a control circuit that controls electric power supplied to the fuel pump;
With
The fuel supply device according to claim 1, wherein the lid member is made of resin and has a cooling passage for cooling the circuit portion through a partition wall. 前記燃料ポンプの昇圧部から前記燃料消費装置へと流れる燃料を前記冷却通路に供給することを特徴とする請求項１記載の燃料供給装置。   2. The fuel supply device according to claim 1, wherein fuel flowing from the boosting portion of the fuel pump to the fuel consuming device is supplied to the cooling passage. 前記蓋部材は前記回路部を収容する収容室を有しており、前記収容室に空気流れを発生する空気入口および空気出口を前記蓋部材に設けていることを特徴とする請求項１または２記載の燃料供給装置。   The said cover member has a storage chamber which stores the said circuit part, The air inlet and air outlet which generate | occur | produce an air flow in the said storage chamber are provided in the said cover member, The said cover member is characterized by the above-mentioned. The fuel supply apparatus as described. 前記回路部と前記冷却通路との間に介在する前記隔壁の樹脂材は、樹脂よりも熱伝導率の高い材料を混入していることを特徴とする請求項１から３のいずれか一項記載の燃料供給装置。   The resin material of the said partition interposed between the said circuit part and the said cooling channel | path has mixed the material whose heat conductivity is higher than resin, The any one of Claim 1 to 3 characterized by the above-mentioned. Fuel supply system. 前記材料は１０6Ω・ｃｍ以上の抵抗値を有することを特徴とする請求項４記載の燃料供給装置。 The fuel supply apparatus according to claim 4, wherein the material has a resistance value of 10 6 Ω · cm or more. 前記冷却通路は少なくとも１回折り返していることを特徴とする請求項１から５のいずれか一項記載の燃料供給装置。   6. The fuel supply device according to claim 1, wherein the cooling passage is folded at least once. 燃料タンク内の燃料を前記燃料タンク外に供給する燃料供給装置であって、
前記燃料タンクに形成されている開口部を覆う蓋部材と、
前記燃料タンク内に設置される燃料ポンプと、
前記蓋部材に設置されており、前記燃料ポンプに供給する電力を制御する制御回路を有する回路部と、
を備え、
前記蓋部材は前記回路部を収容する収容室を有しており、前記収容室に空気流れを発生する空気入口および空気出口を前記蓋部材に設けていることを特徴とする燃料供給装置。 A fuel supply device for supplying fuel in a fuel tank to the outside of the fuel tank,
A lid member covering an opening formed in the fuel tank;
A fuel pump installed in the fuel tank;
A circuit unit that is installed in the lid member and has a control circuit that controls electric power supplied to the fuel pump;
With
The lid member has a housing chamber for housing the circuit portion, and an air inlet and an air outlet for generating an air flow in the housing chamber are provided in the lid member. 燃料タンク内の燃料を前記燃料タンク外の燃料消費装置へと供給する燃料供給装置であって、
前記燃料タンクに形成されている開口部を覆う蓋部材と、
前記燃料タンク内に設置され前記燃料タンク内の燃料を吸入し吐出する電気駆動式の燃料ポンプと、
前記蓋部材に設置されており、前記燃料ポンプに供給する電力を制御する制御回路を有する回路部と、
を備え、
前記蓋部材は隔壁を介して前記回路部を冷却する冷却通路を有しており、
前記燃料ポンプの昇圧部から前記燃料消費装置へと流れる燃料を前記冷却通路に供給することを特徴とする燃料供給装置。 A fuel supply device for supplying fuel in a fuel tank to a fuel consuming device outside the fuel tank,
A lid member covering an opening formed in the fuel tank;
An electrically driven fuel pump installed in the fuel tank and sucking and discharging the fuel in the fuel tank;
A circuit unit that is installed in the lid member and has a control circuit that controls electric power supplied to the fuel pump;
With
The lid member has a cooling passage for cooling the circuit portion through a partition wall,
A fuel supply device, characterized in that fuel flowing from the booster of the fuel pump to the fuel consuming device is supplied to the cooling passage. 前記冷却通路の下流側で燃料圧力が調圧されることを特徴とする請求項２または８記載の燃料供給装置。   9. The fuel supply device according to claim 2, wherein the fuel pressure is regulated downstream of the cooling passage. 前記燃料ポンプは、昇圧中の燃料の一部を前記昇圧部から導出する空気抜き孔を有し、前記空気抜き孔から前記冷却通路に燃料が供給されることを特徴とする請求項２または８記載の燃料供給装置。   9. The fuel pump according to claim 2, wherein the fuel pump has an air vent hole through which a part of the fuel being pressurized is led out from the pressurizer, and the fuel is supplied from the air vent hole to the cooling passage. Fuel supply device. 燃料タンク内の燃料を前記燃料タンク外の燃料消費装置に供給する燃料供給装置であって、
前記燃料タンクに形成されている開口部を覆う蓋部材と、
前記燃料タンク内に設置され前記燃料タンク内の燃料を吸入し吐出する電気駆動式の燃料ポンプと、
前記蓋部材に設置されており、前記燃料ポンプに供給する電力を制御する制御回路を有する回路部と、
を備え、
前記蓋部材は隔壁を介して前記回路部を冷却する冷却通路を有しており、
前記燃料ポンプは、昇圧中の燃料の一部を前記昇圧部から導出する空気抜き孔を有し、前記空気抜き孔から前記冷却通路に燃料が供給されることを特徴とする燃料供給装置。 A fuel supply device for supplying fuel in a fuel tank to a fuel consuming device outside the fuel tank,
A lid member covering an opening formed in the fuel tank;
An electrically driven fuel pump installed in the fuel tank and sucking and discharging the fuel in the fuel tank;
A circuit unit that is installed in the lid member and has a control circuit that controls electric power supplied to the fuel pump;
With
The lid member has a cooling passage for cooling the circuit portion through a partition wall,
The fuel pump has an air vent hole for leading a part of fuel under pressure from the pressure booster, and the fuel is supplied to the cooling passage from the air vent hole. 燃料タンク内の燃料を前記燃料タンク外の燃料消費装置へと供給する燃料供給装置であって、
前記燃料タンク内に設置され前記燃料タンク内の燃料を吸入し吐出する電気駆動式の燃料ポンプと、
前記燃料タンクに形成されている開口部を覆い、前記燃料ポンプと電気的に接続しているポンプ端子を有する蓋部材と、
前記蓋部材に設置され、前記燃料ポンプに供給する電力を制御する制御回路、ならびに前記ポンプ端子と電気的に接続している接続端子を有する制御部と、
を備え、
前記蓋部材と前記制御部とはスナップフィットで結合していることを特徴とする燃料供給装置。 A fuel supply device for supplying fuel in a fuel tank to a fuel consuming device outside the fuel tank,
An electrically driven fuel pump installed in the fuel tank and sucking and discharging the fuel in the fuel tank;
A lid member that covers an opening formed in the fuel tank and has a pump terminal electrically connected to the fuel pump;
A control circuit that is installed in the lid member and controls electric power supplied to the fuel pump; and a control unit having a connection terminal electrically connected to the pump terminal;
With
The fuel supply apparatus according to claim 1, wherein the lid member and the control unit are coupled by a snap fit. 前記制御回路を冷却する冷却フィンを前記制御部に設置していることを特徴とする請求項１２記載の燃料供給装置。   The fuel supply device according to claim 12, wherein cooling fins for cooling the control circuit are installed in the control unit. 前記蓋部材と、前記蓋部材とスナップフィットする前記制御部のケースとは樹脂製であることを特徴とする請求項１２または１３記載の燃料供給装置。
The fuel supply apparatus according to claim 12 or 13, wherein the lid member and the case of the control unit snap-fitted to the lid member are made of resin.
JP2004223316A 2003-11-07 2004-07-30 Fuel supply device Pending JP2005155602A (en)

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