JP2017155711A - Fuel pump module - Google Patents

Fuel pump module Download PDF

Info

Publication number
JP2017155711A
JP2017155711A JP2016041970A JP2016041970A JP2017155711A JP 2017155711 A JP2017155711 A JP 2017155711A JP 2016041970 A JP2016041970 A JP 2016041970A JP 2016041970 A JP2016041970 A JP 2016041970A JP 2017155711 A JP2017155711 A JP 2017155711A
Authority
JP
Japan
Prior art keywords
fuel pump
case member
fuel
pump module
flow path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2016041970A
Other languages
Japanese (ja)
Other versions
JP6254623B2 (en
Inventor
田中　聡
Satoshi Tanaka
聡 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Keihin Corp
Original Assignee
Keihin Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Keihin Corp filed Critical Keihin Corp
Priority to JP2016041970A priority Critical patent/JP6254623B2/en
Priority to CN201710054422.0A priority patent/CN107152359B/en
Publication of JP2017155711A publication Critical patent/JP2017155711A/en
Application granted granted Critical
Publication of JP6254623B2 publication Critical patent/JP6254623B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • F02M37/103—Mounting pumps on fuel tanks

Abstract

PROBLEM TO BE SOLVED: To provide a fuel pump module contributing to reduction of a manufacturing process and reduction of a manufacturing cost, while establishing excellent sealability.SOLUTION: A fuel pump module 12 includes: a fuel pump 31 having a suction port 34 at a first end, and a discharge port 38 at a second end on a side opposite to the first end; a first resin-based case member 51 holding the first end or second end of the fuel pump 31; and a second resin-based case member 52 having a welding region 56 in which the second case member is continuously welded over the circumference with respect to an open end 55 faced to an open end 54 of the first case member 51, and sectioning a storage space 53 of the fuel pump 31 between the first case member 51 and itself.SELECTED DRAWING: Figure 1

Description

本発明は燃料タンクの外側に配置されるいわゆるインラインのフューエルポンプモジュールに関する。   The present invention relates to a so-called in-line fuel pump module disposed outside a fuel tank.

特許文献１は二輪車の燃料供給装置を開示する。燃料供給装置はポンプボデーとポンプカバーとを備える。ポンプボデーとポンプカバーとは相互に結合されて燃料ポンプの収容空間を区画する。   Patent Document 1 discloses a fuel supply device for a motorcycle. The fuel supply device includes a pump body and a pump cover. The pump body and the pump cover are connected to each other to define a housing space for the fuel pump.

特開２００６−１４２８４２号公報JP 2006-142842 A

ポンプボデーの開放端にポンプカバーは面合わせされて重ねられる。ポンプボデーの接合面には収容空間を全周にわたって囲む溝が形成され、溝にはシール部材が嵌め込まれる。こうして接合面でシール性は確立される。溝の形成や、シール部材の嵌め込み、平面同士の位置合わせなど、成形作業や組み立て作業に手間がかかり、製造コストの上昇に繋がっていた。   The pump cover is overlapped with the open end of the pump body. A groove surrounding the entire space is formed on the joint surface of the pump body, and a seal member is fitted into the groove. Thus, a sealing property is established at the joint surface. It takes time and effort to form and assemble such as forming grooves, fitting seal members, and aligning flat surfaces, leading to an increase in manufacturing costs.

本発明は、良好なシール性を確立しながら、製造工程の削減および製造コストの削減に寄与するフューエルポンプモジュールを提供することを目的とする。   An object of this invention is to provide the fuel pump module which contributes to the reduction of a manufacturing process and the reduction of manufacturing cost, establishing good sealing performance.

本発明の第１側面によれば、第１端に吸込口を有し、第１端の反対側の第２端に吐出口を有するフューエルポンプと、前記フューエルポンプの前記第１端または前記第２端を保持する樹脂製の第１ケース部材と、前記第１ケース部材の開放端に面合わせされる開放端に途切れなく全周にわたって溶着域を有し、前記第１ケース部材との間に前記フューエルポンプの収容空間を区画する樹脂製の第２ケース部材とを備えるフューエルポンプモジュールは提供されることができる。   According to the first aspect of the present invention, there is provided a fuel pump having a suction port at a first end and a discharge port at a second end opposite to the first end, and the first end or the first of the fuel pump. A first case member made of resin that holds two ends, and an open end that faces the open end of the first case member has a welded region over the entire circumference without interruption, and between the first case member A fuel pump module comprising a resin-made second case member that defines a housing space for the fuel pump may be provided.

第２側面によれば、第１側面の構成に加えて、フューエルポンプモジュールは、前記フューエルポンプに形成されて前記吸込口または前記吐出口を区画し、前記第１ケース部材および前記第２ケース部材の結合にあたって前記第２ケース部材の動きで規定される嵌め合い方向に延びる接続管と、前記第２ケース部材に区画されて前記嵌め合い方向に延び、前記接続管を受け入れる接続流路とを備える。   According to the second aspect, in addition to the configuration of the first side surface, the fuel pump module is formed in the fuel pump to partition the suction port or the discharge port, and the first case member and the second case member A connecting pipe extending in the fitting direction defined by the movement of the second case member, and a connecting flow path defined by the second case member and extending in the fitting direction to receive the connecting pipe. .

第３側面によれば、第２側面の構成に加えて、フューエルポンプモジュールは、前記フューエルポンプに形成されて、前記吸込口または前記吐出口の残りを区画し、前記第１ケース部材に区画される接続流路に固定される第２接続管を備える。   According to the third aspect, in addition to the configuration of the second side surface, the fuel pump module is formed in the fuel pump, partitions the remaining of the suction port or the discharge port, and is partitioned into the first case member. A second connection pipe fixed to the connection flow path.

第４側面によれば、第３側面の構成に加えて、固定にあたって前記第２接続管は前記接続流路に圧入される。   According to the fourth aspect, in addition to the configuration of the third side face, the second connection pipe is press-fitted into the connection flow path for fixing.

第５側面によれば、第３または第４側面の構成に加えて、フューエルポンプモジュールは、前記接続流路にスライド自在に挿入される前記接続管の外周に装着されて、前記接続管のスライド動作を許容しつつ前記接続流路内で前記接続管の液密性を確立するシール部材を備える。   According to the fifth aspect, in addition to the configuration of the third or fourth side surface, the fuel pump module is mounted on the outer periphery of the connection pipe that is slidably inserted into the connection flow path, and the connection pipe slides. A seal member that establishes liquid tightness of the connection pipe in the connection flow path while allowing operation is provided.

第６側面によれば、第１〜第５側面のいずれかの構成に加えて、フューエルポンプモジュールは、前記第１ケース部材および前記第２ケース部材の少なくともいずれかで前記収容空間に接する内面に形成されて、前記フューエルポンプの長手方向に前記フューエルポンプの占有空間に沿って延びるリブを備える。   According to the sixth aspect, in addition to the configuration of any one of the first to fifth aspects, the fuel pump module is provided on an inner surface that is in contact with the accommodation space by at least one of the first case member and the second case member. Ribs formed and extending along the occupied space of the fuel pump in the longitudinal direction of the fuel pump.

第７側面によれば、第１〜第６側面のいずれかの構成に加えて、フューエルポンプモジュールは、前記第１端で前記フューエルポンプに形成されて、前記フューエルポンプに取り込まれる燃料中に混在する気体を排出する脱気孔と、前記収容空間の内側で前記フューエルポンプの外側に区画されて、前記収容空間に開口し燃料タンクに燃料を送り出す戻し口に前記脱気孔を接続する通路とを備える。   According to the seventh aspect, in addition to the configuration of any one of the first to sixth aspects, the fuel pump module is formed in the fuel pump at the first end and is mixed in the fuel taken into the fuel pump. A deaeration hole that discharges the gas to be discharged, and a passage that is partitioned outside the fuel pump inside the accommodation space and that connects the deaeration hole to a return port that opens into the accommodation space and delivers fuel to a fuel tank. .

第１側面によれば、第１ケース部材および第２ケース部材は収容空間を形成する。収容空間内にフューエルポンプは収容される。溶着に応じて第１ケース部材の開放端と第２ケース部材の開放端との間で良好なシール性は確立される。しかも、こうした構造の形成にあたって溶着工程が用いられる。溶着工程では第１ケース部材上にフューエルポンプは保持される。フューエルポンプの位置決めと第１ケース部材および第２ケース部材の結合とは達成される。製造工程は削減される。製造コストは削減される。   According to the first aspect, the first case member and the second case member form an accommodation space. The fuel pump is accommodated in the accommodating space. A good sealing property is established between the open end of the first case member and the open end of the second case member in accordance with the welding. In addition, a welding process is used to form such a structure. In the welding process, the fuel pump is held on the first case member. The positioning of the fuel pump and the coupling of the first case member and the second case member are achieved. The manufacturing process is reduced. Manufacturing costs are reduced.

第２側面によれば、第１ケース部材および第２ケース部材の結合にあたって、第１ケース部材に対して嵌め合い方向に第２ケース部材が動かされると、開放端同士は面合わせされると同時に第２ケース部材の接続流路にフューエルポンプの接続管は差し込まれる。１つの動きで第１および第２ケース部材の結合と第２ケース部材およびフューエルポンプの嵌め合いとは達成される。製造工程は削減される。製造コストは削減される。   According to the second aspect, when the first case member and the second case member are coupled, when the second case member is moved in the fitting direction with respect to the first case member, the open ends are brought into contact with each other at the same time. The connection pipe of the fuel pump is inserted into the connection flow path of the second case member. The coupling of the first and second case members and the fitting of the second case member and the fuel pump are achieved by one movement. The manufacturing process is reduced. Manufacturing costs are reduced.

第３側面によれば、フューエルポンプは確実に第１ケース部材に固定される。   According to the third aspect, the fuel pump is securely fixed to the first case member.

第４側面によれば、固定とシールとを容易に行うことができる。   According to the fourth aspect, fixing and sealing can be easily performed.

第５側面によれば、第１ケース部材や第２ケース部材で寸法精度のばらつきが生じても、あるいは、燃料の膨潤に基づき第１ケース部材および第２ケース部材に寸法の変動が生じても、接続流路に対する接続管のスライド動作に応じて寸法のばらつきや変動は吸収される。しかも、シール部材は、接続管のスライド動作に拘わらず液密性を維持する。   According to the fifth aspect, even if variation in dimensional accuracy occurs in the first case member or the second case member, or variation in dimensions occurs in the first case member and the second case member due to fuel swelling. Dimensional variations and fluctuations are absorbed according to the sliding movement of the connecting pipe with respect to the connecting flow path. Moreover, the seal member maintains liquid tightness regardless of the sliding movement of the connecting pipe.

第６側面によれば、リブの働きで第１ケース部材や第２ケース部材の剛性は高まる。したがって、第１ケース部材や第２ケース部材の成型や溶着にあたって第１ケース部材や第２ケース部材の歪みは最大限に抑制されることができる。しかも、溶着作業にあたってリブは第１ケース部材または第２ケース部材内でフューエルポンプを保持することができる。作業効率は高められる。   According to the sixth aspect, the rigidity of the first case member and the second case member is increased by the action of the ribs. Therefore, the distortion of the first case member or the second case member can be suppressed to the maximum when the first case member or the second case member is molded or welded. Moreover, the rib can hold the fuel pump in the first case member or the second case member in the welding operation. Work efficiency is increased.

第７側面によれば、溶着によって密閉された収容空間は脱気孔から排出された燃料の流路として利用される。モジュールの構造は簡素化される。加えて、フューエルポンプの振動や音は溶着で密閉された収容空間内に閉じ込められる。振動や音の漏れは抑制される。   According to the seventh aspect, the accommodation space sealed by welding is used as a flow path for the fuel discharged from the deaeration holes. The module structure is simplified. In addition, the vibration and sound of the fuel pump are confined in the housing space sealed by welding. Vibration and sound leakage are suppressed.

本発明の一実施形態に係る車両用燃料供給システムの全体構成を示す図である。It is a figure showing the whole fuel supply system composition for vehicles concerning one embodiment of the present invention. 図１の２−２線に沿った断面図である。FIG. 2 is a cross-sectional view taken along line 2-2 in FIG.

以下、添付図面を参照しつつ本発明の一実施形態を説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

図１は車両用燃料供給システム１１の全体構成を概略的に示す。燃料供給システム１１は本発明の一実施形態に係るフューエルポンプモジュール１２を備える。フューエルポンプモジュール１２のポンプケース１３は中心軸線Ｃｎを有する円筒形に形作られる。円筒形の軸方向で一端には入口１４が区画される。円筒形の軸方向で他端には出口１５および戻し口１６が区画される。入口１４はニップル１７で形成される。ニップル１７には燃料タンク１８に繋がる燃料管１９が結合される。出口１５は同様にニップル２１で形成される。ニップル２１には例えば燃料噴射装置２２に接続される燃料管２３が結合される。燃料噴射装置２２は例えばエンジン２５の吸気路に繋がる吸気道２６に臨む。戻し口１６は同様にニップル２７で形成される。ニップル２７には燃料タンク１８に繋がる戻し管２８が結合される。戻し口１６は燃料タンク１８に燃料を送り出す。燃料供給システム１１は例えば自動二輪車といった鞍乗り型車両に搭載される。   FIG. 1 schematically shows the overall configuration of a vehicle fuel supply system 11. The fuel supply system 11 includes a fuel pump module 12 according to an embodiment of the present invention. The pump case 13 of the fuel pump module 12 is formed in a cylindrical shape having a central axis Cn. An inlet 14 is defined at one end in the axial direction of the cylindrical shape. An outlet 15 and a return port 16 are defined at the other end in the cylindrical axial direction. The inlet 14 is formed by a nipple 17. A fuel pipe 19 connected to the fuel tank 18 is coupled to the nipple 17. The outlet 15 is likewise formed by a nipple 21. For example, a fuel pipe 23 connected to the fuel injection device 22 is coupled to the nipple 21. The fuel injection device 22 faces an intake passage 26 connected to an intake passage of the engine 25, for example. The return port 16 is similarly formed by a nipple 27. A return pipe 28 connected to the fuel tank 18 is coupled to the nipple 27. The return port 16 sends fuel to the fuel tank 18. The fuel supply system 11 is mounted on a saddle-ride type vehicle such as a motorcycle.

フューエルポンプモジュール１２ではポンプケース１３にフューエルポンプ３１が収容される。フューエルポンプ３１は金属製の筒体３２を有する。筒体３２の第１端に第１端面部材３３が嵌め込まれる。第１端面部材３３には吸込口３４を区画する圧入管（第２接続管）３５が一体に形成される。第１端面部材３３は例えば硬質の樹脂材料から成型されればよい。圧入管３５はポンプケース１３に区画される接続流路３６に圧入で固定される。   In the fuel pump module 12, a fuel pump 31 is accommodated in the pump case 13. The fuel pump 31 has a metal cylinder 32. The first end surface member 33 is fitted into the first end of the cylindrical body 32. The first end surface member 33 is integrally formed with a press-fit pipe (second connection pipe) 35 that partitions the suction port 34. The first end face member 33 may be molded from, for example, a hard resin material. The press-fit pipe 35 is fixed by press-fitting into a connection flow path 36 defined by the pump case 13.

筒体３２の第２端に第２端面部材３７が嵌め込まれる。第２端面部材３７には吐出口３８を区画する接続管３９が一体に形成される。第２端面部材３７は例えば硬質の樹脂材料から成型されればよい。接続管３９はポンプケース１３に区画される接続流路４１に受け入れられる。接続管３９は接続流路４１にスライド自在に挿入される。接続管３９の外周にはシール部材４２が装着される。シール部材４２は、接続管３９のスライド動作を許容しつつ接続流路４１内で接続管３９の液密性を確立する。   The second end surface member 37 is fitted into the second end of the cylindrical body 32. The second end surface member 37 is integrally formed with a connecting pipe 39 that partitions the discharge port 38. The second end surface member 37 may be molded from, for example, a hard resin material. The connection pipe 39 is received in the connection flow path 41 defined in the pump case 13. The connection pipe 39 is slidably inserted into the connection channel 41. A seal member 42 is attached to the outer periphery of the connection pipe 39. The seal member 42 establishes the liquid tightness of the connection pipe 39 in the connection flow path 41 while allowing the connection pipe 39 to slide.

フューエルポンプ３１はインペラー４３を備える。インペラー４３は第１端面部材３３に接するインペラー室４４に収容される。インペラー４３は回転軸４５に連結される。回転軸４５には電動モーターのローター４６が接続される。ローター４６はステーター４７で囲まれる。ローター４６およびステーター４７の相互作用で回転軸４５の回転は引き起こされる。回転軸４５の回転時、インペラー４３は回転軸４５の軸心回りで回転する。インペラー４３の回転に基づき吐出圧は生成される。   The fuel pump 31 includes an impeller 43. The impeller 43 is accommodated in an impeller chamber 44 that contacts the first end face member 33. The impeller 43 is connected to the rotation shaft 45. A rotor 46 of an electric motor is connected to the rotating shaft 45. The rotor 46 is surrounded by a stator 47. The rotation of the rotating shaft 45 is caused by the interaction of the rotor 46 and the stator 47. When the rotating shaft 45 rotates, the impeller 43 rotates around the axis of the rotating shaft 45. A discharge pressure is generated based on the rotation of the impeller 43.

第１端面部材３３には脱気孔４８が形成される。脱気孔４８はインペラー室４４とフューエルポンプ３１外側の収容空間とを接続する。フューエルポンプ３１に取り込まれる燃料中に混在する気体は脱気孔４８から排出される。   A deaeration hole 48 is formed in the first end face member 33. The deaeration hole 48 connects the impeller chamber 44 and the accommodation space outside the fuel pump 31. The gas mixed in the fuel taken into the fuel pump 31 is discharged from the deaeration hole 48.

ローター４６は回転軸４５回りで円筒形の軌道を描く。ステーター４７はローター４６の軌道に倣って円筒形に沿って配置される。こうして筒体３２は回転軸４５に同軸の円筒形に形作られる。圧入管３５および接続管３９はそれぞれ回転軸４５に平行な中心軸線を有する。圧入管３５の接続流路３６は圧入管３５に同軸に円筒形空間で形成される。接続管３９の接続流路４１は同様に接続管３９に同軸に円筒形空間で形成される。こうして回転軸４５に平行に「嵌め合い方向」は規定される。   The rotor 46 draws a cylindrical orbit around the rotation axis 45. The stator 47 is arranged along a cylindrical shape following the path of the rotor 46. Thus, the cylindrical body 32 is formed in a cylindrical shape coaxial with the rotation shaft 45. The press-fit pipe 35 and the connecting pipe 39 each have a central axis parallel to the rotation axis 45. The connection flow path 36 of the press-fit pipe 35 is formed in a cylindrical space coaxially with the press-fit pipe 35. Similarly, the connection flow path 41 of the connection pipe 39 is formed in a cylindrical space coaxially with the connection pipe 39. Thus, the “fitting direction” is defined in parallel with the rotation shaft 45.

ポンプケース１３は樹脂製の第１ケース部材５１および樹脂製の第２ケース部材５２を備える。フューエルポンプ３１の第１端は第１ケース部材５１に支持される。フューエルポンプ３１の第２端は第２ケース部材５２に支持される。第１ケース部材５１と第２ケース部材５２との間にフューエルポンプ３１の収容空間５３は区画される。第１ケース部材５１に入口１４および接続流路３６は区画される。第２ケース部材５２に出口１５および接続流路４１は区画される。ここでは、第１ケース部材５１は有底の筒形状に形成される。第１ケース部材５１の開放端にはフランジ５１ａが形成され、第２ケース部材５２はフランジ５１ａに重ねられる蓋体に形成される。   The pump case 13 includes a first case member 51 made of resin and a second case member 52 made of resin. The first end of the fuel pump 31 is supported by the first case member 51. The second end of the fuel pump 31 is supported by the second case member 52. A housing space 53 for the fuel pump 31 is defined between the first case member 51 and the second case member 52. The inlet 14 and the connection flow path 36 are defined in the first case member 51. The outlet 15 and the connection flow path 41 are defined in the second case member 52. Here, the first case member 51 is formed in a bottomed cylindrical shape. A flange 51a is formed at the open end of the first case member 51, and the second case member 52 is formed on a lid that is overlaid on the flange 51a.

第１ケース部材５１の開放端５４と第２ケース部材５２の開放端５５とは相互に面合わせされる。こうして接合面が形成される。接合面は途切れなく収容空間５３の全周にわたって溶着域５６を有する。面同士の溶着は第１ケース部材５１と第２ケース部材５２との間でシールを形成する。   The open end 54 of the first case member 51 and the open end 55 of the second case member 52 are flush with each other. In this way, a joint surface is formed. The joint surface has a welding area 56 over the entire circumference of the accommodation space 53 without interruption. The welding between the surfaces forms a seal between the first case member 51 and the second case member 52.

第２ケース部材５２には接続流路４１および出口１５の間で接続流路４１から分岐する調圧路５７が形成される。調圧路５７は第２ケース部材５２の開放端５５で収容空間５３に開口する。調圧路５７には調圧弁５８が組み込まれる。調圧弁５８は、第２ケース部材５２に嵌め込まれる調圧弁本体５８ａに固定される弁座５９と、弁座５９に着座する球体の弁体６１と、弁座５９に向かって弁体６１を押し込む力を発揮する弾性体６２とを備える。接続流路４１内の圧力が上昇し、弾性体６２の押し圧を上回ると、接続流路４１から燃料は調圧弁５８を通過して収容空間５３内に流れ込む。   The second case member 52 is formed with a pressure regulating path 57 that branches from the connection flow path 41 between the connection flow path 41 and the outlet 15. The pressure regulation path 57 opens into the accommodation space 53 at the open end 55 of the second case member 52. A pressure regulating valve 58 is incorporated in the pressure regulating path 57. The pressure regulating valve 58 includes a valve seat 59 fixed to the pressure regulating valve main body 58 a fitted in the second case member 52, a spherical valve body 61 seated on the valve seat 59, and the valve body 61 is pushed toward the valve seat 59. And an elastic body 62 that exerts force. When the pressure in the connection flow path 41 rises and exceeds the pressing pressure of the elastic body 62, the fuel flows from the connection flow path 41 into the accommodation space 53 through the pressure regulating valve 58.

第２ケース部材５２に戻し口１６は区画される。戻し口１６は収容空間５３で開口する戻し通路６３に接続される。戻し通路６３は、収容空間５３の内側でフューエルポンプ３１の外側に区画される通路６４に接続される。フューエルポンプ３１の第１端面部材３３は間隔を空けて第１ケース部材５１の端壁５１ｂに向き合わせられる。こうして第１端面部材３３と第１ケース部材５１の端壁５１ｂとの間に区画される空間は通路６４に接続される。当該空間に脱気孔４８は開口する。同様に、フューエルポンプ３１の第２端面部材３７は間隔を空けて第２ケース部材５２に向き合わせられる。こうして第２端面部材３７と第２ケース部材５２との間に区画される空間は通路６４に接続される。当該空間に調圧路５７は開口する。   The return port 16 is defined in the second case member 52. The return port 16 is connected to a return passage 63 that opens in the accommodation space 53. The return passage 63 is connected to a passage 64 that is partitioned inside the accommodation space 53 and outside the fuel pump 31. The first end face member 33 of the fuel pump 31 is opposed to the end wall 51b of the first case member 51 with a space therebetween. Thus, the space defined between the first end surface member 33 and the end wall 51 b of the first case member 51 is connected to the passage 64. A deaeration hole 48 opens in the space. Similarly, the second end surface member 37 of the fuel pump 31 is opposed to the second case member 52 with a space therebetween. Thus, the space defined between the second end face member 37 and the second case member 52 is connected to the passage 64. The pressure regulation path 57 opens in the space.

第１ケース部材５１で収容空間５３に接する内面にはリブ６５が形成される。リブ６５はフューエルポンプ３１の長手方向に延びる。図２に示されるように、リブ６５はフューエルポンプ３１の占有空間に沿って形成される。リブ６５同士の間に前述の通路６４は区画される。ポンプケース１３はフューエルポンプ３１の筒体３２に同軸の円筒形状に形成される。   Ribs 65 are formed on the inner surface of the first case member 51 that contacts the accommodation space 53. The rib 65 extends in the longitudinal direction of the fuel pump 31. As shown in FIG. 2, the rib 65 is formed along the occupied space of the fuel pump 31. The aforementioned passage 64 is defined between the ribs 65. The pump case 13 is formed in a cylindrical shape coaxial with the cylinder 32 of the fuel pump 31.

フューエルポンプモジュール１２の組み立て方法を簡単に説明する。第１ケース部材５１、第２ケース部材５２およびフューエルポンプ３１が準備される。第２ケース部材５２には調圧弁５８は組み込まれる。第１ケース部材５１および第２ケース部材５２は樹脂材料から成型されればよい。第１ケース部材５１の接続流路３６にフューエルポンプ３１の圧入管３５は圧入される。このとき、フューエルポンプ３１はリブ６５で案内されながら第１ケース部材５１に挿入される。したがって、フューエルポンプ３１の圧力管３５は容易く第１ケース部材５１の接続流路３６に進入することができる。こうして圧入管３５で圧入されたフューエルポンプ３１は第１ケース部材５１に保持される。   A method for assembling the fuel pump module 12 will be briefly described. The first case member 51, the second case member 52, and the fuel pump 31 are prepared. A pressure regulating valve 58 is incorporated in the second case member 52. The first case member 51 and the second case member 52 may be molded from a resin material. The press-fit pipe 35 of the fuel pump 31 is press-fitted into the connection flow path 36 of the first case member 51. At this time, the fuel pump 31 is inserted into the first case member 51 while being guided by the rib 65. Therefore, the pressure pipe 35 of the fuel pump 31 can easily enter the connection flow path 36 of the first case member 51. The fuel pump 31 thus press-fitted by the press-fitting pipe 35 is held by the first case member 51.

続いて第１ケース部材５１に第２ケース部材５２は嵌め合わせられる。第１ケース部材５１および第２ケース部材５２の合わせ面には相互に嵌め合う凹凸形状が形成されればよい。第２ケース部材５２は第１ケース部材５１に向かって回転軸４５に平行な嵌め合い方向に動かされる。第２ケース部材５２の接続流路４１には接続管３９が進入していく。接続管３９には事前にシール部材４２が装着される。第１ケース部材５１および第２ケース部材５２の合わせ面同士が突き当てられると、合わせ面同士は収容空間５３周りで全周にわたって溶着される。   Subsequently, the second case member 52 is fitted to the first case member 51. The mating surfaces of the first case member 51 and the second case member 52 may be formed with an uneven shape that fits together. The second case member 52 is moved toward the first case member 51 in the fitting direction parallel to the rotation shaft 45. The connection pipe 39 enters the connection flow path 41 of the second case member 52. A sealing member 42 is attached to the connection pipe 39 in advance. When the mating surfaces of the first case member 51 and the second case member 52 are brought into contact with each other, the mating surfaces are welded around the accommodation space 53 over the entire circumference.

フューエルポンプモジュール１２では収容空間５３内にフューエルポンプ３１は収容される。溶着に応じて第１ケース部材５１の開放端５４と第２ケース部材５２の開放端５５との間で良好なシール性は確立される。しかも、こうした構造の形成にあたって溶着工程が用いられる。溶着工程では第１ケース部材５１上にフューエルポンプ３１は保持される。フューエルポンプ３１の位置決めと第１ケース部材５１および第２ケース部材５２の結合とは達成される。製造工程は削減される。製造コストは削減される。   In the fuel pump module 12, the fuel pump 31 is accommodated in the accommodating space 53. A good sealing property is established between the open end 54 of the first case member 51 and the open end 55 of the second case member 52 in accordance with the welding. In addition, a welding process is used to form such a structure. In the welding process, the fuel pump 31 is held on the first case member 51. The positioning of the fuel pump 31 and the coupling of the first case member 51 and the second case member 52 are achieved. The manufacturing process is reduced. Manufacturing costs are reduced.

フューエルポンプモジュール１２の組み立てにあたって、第１ケース部材５１および第２ケース部材５２は相互に結合される。このとき、第１ケース部材５１に対して嵌め合い方向に第２ケース部材５２が動かされると、開放端５４、５５同士は面合わせされると同時に第２ケース部材５２の接続流路４１にフューエルポンプ３１の接続管３９は差し込まれる。１つの動きで第１および第２ケース部材５１、５２の結合と第２ケース部材５２およびフューエルポンプ３１の嵌め合いとは達成される。製造工程は削減される。製造コストは削減される。   In assembling the fuel pump module 12, the first case member 51 and the second case member 52 are coupled to each other. At this time, when the second case member 52 is moved in the fitting direction with respect to the first case member 51, the open ends 54 and 55 are brought into contact with each other and at the same time the fuel is connected to the connection flow path 41 of the second case member 52. The connection pipe 39 of the pump 31 is inserted. The coupling of the first and second case members 51 and 52 and the fitting of the second case member 52 and the fuel pump 31 are achieved by one movement. The manufacturing process is reduced. Manufacturing costs are reduced.

フューエルポンプモジュール１２ではフューエルポンプ３１に圧入管３５が形成される。圧入管３５は第１ケース部材５１に区画される接続流路３６に圧入で固定される。フューエルポンプ３１は確実に第１ケース部材５１に固定される。   In the fuel pump module 12, a press-fit pipe 35 is formed in the fuel pump 31. The press-fit pipe 35 is fixed by press-fitting into the connection flow path 36 partitioned by the first case member 51. The fuel pump 31 is securely fixed to the first case member 51.

フューエルポンプモジュール１２ではフューエルポンプ３１に接続管３９が形成される。接続管３９は接続流路４１にスライド自在に挿入される。したがって、第１ケース部材５１や第２ケース部材５２で寸法精度のばらつきが生じても、あるいは、燃料の膨潤に基づき第１ケース部材５１および第２ケース部材５２に寸法の変動が生じても、接続流路４１に対する接続管３９のスライド動作に応じて寸法のばらつきや変動は吸収される。しかも、接続管３９の外周にはシール部材４２が装着される。シール部材４２は接続管３９のスライド動作に拘わらず液密性を維持する。   In the fuel pump module 12, a connection pipe 39 is formed in the fuel pump 31. The connection pipe 39 is slidably inserted into the connection channel 41. Therefore, even if variations in dimensional accuracy occur in the first case member 51 and the second case member 52, or variations in dimensions occur in the first case member 51 and the second case member 52 due to fuel swelling, Variations and fluctuations in dimensions are absorbed according to the sliding movement of the connection pipe 39 with respect to the connection flow path 41. In addition, a seal member 42 is attached to the outer periphery of the connection pipe 39. The seal member 42 maintains liquid tightness regardless of the sliding movement of the connecting pipe 39.

第１ケース部材５１では、収容空間５３に接する内面にリブ６５が形成される。リブ６５の働きで第１ケース部材５１の剛性は高まる。したがって、第１ケース部材５１の成型や第１ケース部材５１および第２ケース部材５２の溶着にあたって第１ケース部材５１の歪みは最大限に抑制される。しかも、リブ６５はフューエルポンプ３１の長手方向にフューエルポンプ３１の占有空間に沿って延びるので、溶着作業にあたってリブ６５は第１ケース部材５１内でフューエルポンプ３１を保持することができる。作業効率は高められる。   In the first case member 51, ribs 65 are formed on the inner surface in contact with the accommodation space 53. The rigidity of the first case member 51 is increased by the action of the rib 65. Therefore, the distortion of the first case member 51 is suppressed to the maximum when the first case member 51 is molded and the first case member 51 and the second case member 52 are welded. Moreover, since the rib 65 extends along the occupied space of the fuel pump 31 in the longitudinal direction of the fuel pump 31, the rib 65 can hold the fuel pump 31 in the first case member 51 during the welding operation. Work efficiency is increased.

フューエルポンプモジュール１２では、溶着によって密閉された収容空間５３は脱気孔４８から排出された燃料の通路６４として利用される。フューエルポンプモジュール１１の構造は簡素化される。加えて、フューエルポンプ３１の振動や音は溶着で密閉された収容空間５３内に閉じ込められる。振動や音の漏れは抑制される。   In the fuel pump module 12, the accommodation space 53 sealed by welding is used as a passage 64 for the fuel discharged from the deaeration hole 48. The structure of the fuel pump module 11 is simplified. In addition, the vibration and sound of the fuel pump 31 are confined in the housing space 53 sealed by welding. Vibration and sound leakage are suppressed.

以上の実施形態では第１ケース部材５１にフューエルポンプ３１の圧入管３５が圧入され、第２ケース部材５２に接続管３９がスライド自在に差し込まれるものの、蓋形状の第２ケース部材５２に圧入管３５が圧入され、第１ケース部材５１に接続管３９がスライド自在に差し込まれてもよい。その他、本実施形態ではフューエルポンプ３１の吸込口３４が圧入管３５に設定され吐出口３８が接続管３９に設定されたものの、反対に吸込口３４が接続管３９に設定され吐出口３８が圧入管３５に設定されてもよい。さらに、圧入管３５に代えて、圧入以外の方法で接続流路３６に固定される接続管が用いられてもよい。   In the above embodiment, the press-fit pipe 35 of the fuel pump 31 is press-fitted into the first case member 51 and the connection pipe 39 is slidably inserted into the second case member 52, but the press-fit pipe is inserted into the lid-shaped second case member 52. 35 may be press-fitted and the connection pipe 39 may be slidably inserted into the first case member 51. In addition, in this embodiment, although the suction port 34 of the fuel pump 31 is set to the press-fit pipe 35 and the discharge port 38 is set to the connection pipe 39, the suction port 34 is set to the connection pipe 39 and the discharge port 38 is press-fitted. The tube 35 may be set. Furthermore, instead of the press-fit pipe 35, a connection pipe fixed to the connection flow path 36 by a method other than press-fit may be used.

１２…フューエルポンプモジュール、１６…戻し口、１８…燃料タンク、３１…フューエルポンプ、３４…吸込口、３５…第２接続管（圧入管）、３６…接続流路、３８…吐出口、３９…接続管、４１…接続流路、４２…シール部材、４８…脱気孔、５１…第１ケース部材、５２…第２ケース部材、５３…収容空間、５４…開放端、５５…開放端、５６…溶着域、６４…通路、６５…リブ。   DESCRIPTION OF SYMBOLS 12 ... Fuel pump module, 16 ... Return port, 18 ... Fuel tank, 31 ... Fuel pump, 34 ... Suction port, 35 ... 2nd connection pipe (press injection pipe), 36 ... Connection flow path, 38 ... Discharge port, 39 ... Connection pipe, 41 ... connection flow path, 42 ... sealing member, 48 ... deaeration hole, 51 ... first case member, 52 ... second case member, 53 ... accommodating space, 54 ... open end, 55 ... open end, 56 ... Welding area, 64 ... passage, 65 ... rib.

フューエルポンプモジュール１２の組み立て方法を簡単に説明する。第１ケース部材５１、第２ケース部材５２およびフューエルポンプ３１が準備される。第２ケース部材５２には調圧弁５８は組み込まれる。第１ケース部材５１および第２ケース部材５２は樹脂材料から成型されればよい。第１ケース部材５１の接続流路３６にフューエルポンプ３１の圧入管３５は圧入される。このとき、フューエルポンプ３１はリブ６５で案内されながら第１ケース部材５１に挿入される。したがって、フューエルポンプ３１の圧入管３５は容易く第１ケース部材５１の接続流路３６に進入することができる。こうして圧入管３５で圧入されたフューエルポンプ３１は第１ケース部材５１に保持される。
A method for assembling the fuel pump module 12 will be briefly described. The first case member 51, the second case member 52, and the fuel pump 31 are prepared. A pressure regulating valve 58 is incorporated in the second case member 52. The first case member 51 and the second case member 52 may be molded from a resin material. The press-fit pipe 35 of the fuel pump 31 is press-fitted into the connection flow path 36 of the first case member 51. At this time, the fuel pump 31 is inserted into the first case member 51 while being guided by the rib 65. Therefore, the press-fit pipe 35 of the fuel pump 31 can easily enter the connection flow path 36 of the first case member 51. The fuel pump 31 thus press-fitted by the press-fitting pipe 35 is held by the first case member 51.

フューエルポンプモジュール１２では、溶着によって密閉された収容空間５３は脱気孔４８から排出された燃料の通路６４として利用される。フューエルポンプモジュール１２の構造は簡素化される。加えて、フューエルポンプ３１の振動や音は溶着で密閉された収容空間５３内に閉じ込められる。振動や音の漏れは抑制される。
In the fuel pump module 12, the accommodation space 53 sealed by welding is used as a passage 64 for the fuel discharged from the deaeration hole 48. The structure of the fuel pump module 12 is simplified. In addition, the vibration and sound of the fuel pump 31 are confined in the housing space 53 sealed by welding. Vibration and sound leakage are suppressed.

本発明は燃料タンクの外側に配置されるいわゆるインラインのフューエルポンプモジュールに関する。   The present invention relates to a so-called in-line fuel pump module disposed outside a fuel tank.

特許文献１は二輪車の燃料供給装置を開示する。燃料供給装置はポンプボデーとポンプカバーとを備える。ポンプボデーとポンプカバーとは相互に結合されて燃料ポンプの収容空間を区画する。   Patent Document 1 discloses a fuel supply device for a motorcycle. The fuel supply device includes a pump body and a pump cover. The pump body and the pump cover are connected to each other to define a housing space for the fuel pump.

特開２００６−１４２８４２号公報JP 2006-142842 A

ポンプボデーの開放端にポンプカバーは面合わせされて重ねられる。ポンプボデーの接合面には収容空間を全周にわたって囲む溝が形成され、溝にはシール部材が嵌め込まれる。こうして接合面でシール性は確立される。溝の形成や、シール部材の嵌め込み、平面同士の位置合わせなど、成形作業や組み立て作業に手間がかかり、製造コストの上昇に繋がっていた。   The pump cover is overlapped with the open end of the pump body. A groove surrounding the entire space is formed on the joint surface of the pump body, and a seal member is fitted into the groove. Thus, a sealing property is established at the joint surface. It takes time and effort to form and assemble such as forming grooves, fitting seal members, and aligning flat surfaces, leading to an increase in manufacturing costs.

本発明は、良好なシール性を確立しながら、製造工程の削減および製造コストの削減に寄与するフューエルポンプモジュールを提供することを目的とする。   An object of this invention is to provide the fuel pump module which contributes to the reduction of a manufacturing process and the reduction of manufacturing cost, establishing good sealing performance.

本発明の第１側面によれば、第１端に吸込口を有し、第１端の反対側の第２端に吐出口を有するフューエルポンプと、前記フューエルポンプの前記第１端を保持する樹脂製の第１ケース部材と、前記第１ケース部材の開放端に面合わせされる開放端に途切れなく全周にわたって溶着域を有し、前記第１ケース部材との間に前記フューエルポンプの収容空間を区画する樹脂製の第２ケース部材とを備えるフューエルポンプモジュールであって、前記フューエルポンプに形成されて、前記吸込口を区画し、前記第１ケース部材に区画される第１接続流路に圧入・固定される第１接続管と、前記フューエルポンプに形成されて、前記吐出口を区画し、前記第１ケース部材および前記第２ケース部材の結合にあたって前記第２ケース部材の動きで規定される嵌め合い方向に延びる第２接続管と、前記第２ケース部材に区画されて前記嵌め合い方向に延び、前記第２接続管をスライド自在に受け入れる第２接続流路と、前記第２接続管の外周に装着されて、前記第２接続管のスライド動作を許容しつつ前記第２接続流路内で前記第２接続管の液密性を確立するシール部材とを備えるフューエルポンプモジュールが提供される。 According to the first aspect of the present invention, a fuel pump having a suction port at a first end and a discharge port at a second end opposite to the first end, and holding the first end of the fuel pump. The fuel case is accommodated between the first case member made of resin and the open end face-to-face with the open end of the first case member. A fuel pump module comprising a resin-made second case member that divides a space , wherein the first connection flow path is formed in the fuel pump, divides the suction port, and is divided into the first case member. A first connection pipe that is press-fitted into and fixed to the fuel pump, and is formed in the fuel pump to define the discharge port, and is defined by the movement of the second case member when the first case member and the second case member are coupled. A second connection pipe extending in the fitting direction, a second connection channel defined by the second case member and extending in the fitting direction, and slidably receiving the second connection pipe, and the second connection pipe outer periphery is mounted in the fuel pump module comprising a seal member second while allowing sliding movement of the connection tube at the second connecting flow channel to establish liquid tightness of the second connecting tube is provided The

第２側面によれば、第１側面の構成に加えて、フューエルポンプモジュールは、前記第１ケース部材および前記第２ケース部材の少なくともいずれかで前記収容空間に接する内面に形成されて、前記フューエルポンプの長手方向に前記フューエルポンプの占有空間に沿って延びるリブを備える。 According to a second aspect, in addition to the configuration of the first side surface, the fuel pump module is formed on the inner surface in contact with said at least said housing space in either the first casing member and the second case member, Ribs extending along the occupied space of the fuel pump in the longitudinal direction of the fuel pump.

第３側面によれば、第１または第２側面の構成に加えて、フューエルポンプモジュールは、前記第１端で前記フューエルポンプに形成されて、前記フューエルポンプに取り込まれる燃料中に混在する気体を排出する脱気孔と、前記収容空間の内側で前記フューエルポンプの外側に区画されて、前記収容空間に開口し燃料タンクに燃料を送り出す戻し口に前記脱気孔を接続する通路とを備える。 According to a third aspect, the gas in addition to the configuration of the first or second aspect, the fuel pump module, which is formed on the fuel pump in the first end, mixed in the fuel taken into the fuel pump And a passage that is partitioned inside the housing space and outside the fuel pump and that connects the deaeration hole to a return port that opens into the housing space and feeds fuel to the fuel tank.

第１側面によれば、第１ケース部材および第２ケース部材は収容空間を形成する。収容空間内にフューエルポンプは収容される。溶着に応じて第１ケース部材の開放端と第２ケース部材の開放端との間で良好なシール性は確立される。しかも、こうした構造の形成にあたって溶着工程が用いられる。溶着工程では第１ケース部材上にフューエルポンプは保持される。フューエルポンプの位置決めと第１ケース部材および第２ケース部材の結合とは達成される。製造工程は削減される。製造コストは削減される。   According to the first aspect, the first case member and the second case member form an accommodation space. The fuel pump is accommodated in the accommodating space. A good sealing property is established between the open end of the first case member and the open end of the second case member in accordance with the welding. In addition, a welding process is used to form such a structure. In the welding process, the fuel pump is held on the first case member. The positioning of the fuel pump and the coupling of the first case member and the second case member are achieved. The manufacturing process is reduced. Manufacturing costs are reduced.

また、第１ケース部材および第２ケース部材の結合にあたって、第１ケース部材に対して嵌め合い方向に第２ケース部材が動かされると、開放端同士は面合わせされると同時に第２ケース部材の第２接続流路にフューエルポンプの第２接続管は差し込まれる。１つの動きで第１および第２ケース部材の結合と第２ケース部材およびフューエルポンプの嵌め合いとは達成される。製造工程は削減される。製造コストは削減される。 Further, when the first case member and the second case member are joined, when the second case member is moved in the fitting direction with respect to the first case member, the open ends are brought into contact with each other at the same time. The second connection pipe of the fuel pump is inserted into the second connection flow path. The coupling of the first and second case members and the fitting of the second case member and the fuel pump are achieved by one movement. The manufacturing process is reduced. Manufacturing costs are reduced.

また、フューエルポンプは確実に第１ケース部材に固定される。 Further, the fuel pump is securely fixed to the first case member.

また、固定とシールとを容易に行うことができる。 Further, fixing and sealing can be easily performed.

さらに、第１ケース部材や第２ケース部材で寸法精度のばらつきが生じても、あるいは、燃料の膨潤に基づき第１ケース部材および第２ケース部材に寸法の変動が生じても、第２接続流路に対する第２接続管のスライド動作に応じて寸法のばらつきや変動は吸収される。しかも、シール部材は、第２接続管のスライド動作に拘わらず液密性を維持する。 Further, even if the dimensional accuracy varies between the first case member and the second case member, or the dimensional variation occurs in the first case member and the second case member due to the swelling of the fuel, the second connection flow Variations and fluctuations in dimensions are absorbed according to the sliding movement of the second connecting pipe relative to the road. Moreover, the seal member maintains liquid tightness regardless of the sliding operation of the second connection pipe.

第２側面によれば、リブの働きで第１ケース部材や第２ケース部材の剛性は高まる。したがって、第１ケース部材や第２ケース部材の成型や溶着にあたって第１ケース部材や第２ケース部材の歪みは最大限に抑制されることができる。しかも、溶着作業にあたってリブは第１ケース部材または第２ケース部材内でフューエルポンプを保持することができる。作業効率は高められる。 According to the second aspect, the rigidity of the first case member and the second case member is increased by the action of the rib. Therefore, the distortion of the first case member or the second case member can be suppressed to the maximum when the first case member or the second case member is molded or welded. Moreover, the rib can hold the fuel pump in the first case member or the second case member in the welding operation. Work efficiency is increased.

第３側面によれば、溶着によって密閉された収容空間は脱気孔から排出された燃料の流路として利用される。モジュールの構造は簡素化される。加えて、フューエルポンプの振動や音は溶着で密閉された収容空間内に閉じ込められる。振動や音の漏れは抑制される。 According to the third aspect, the accommodation space sealed by welding is used as a flow path for the fuel discharged from the deaeration hole. The module structure is simplified. In addition, the vibration and sound of the fuel pump are confined in the housing space sealed by welding. Vibration and sound leakage are suppressed.

本発明の一実施形態に係る車両用燃料供給システムの全体構成を示す図である。It is a figure showing the whole fuel supply system composition for vehicles concerning one embodiment of the present invention. 図１の２−２線に沿った断面図である。FIG. 2 is a cross-sectional view taken along line 2-2 in FIG.

以下、添付図面を参照しつつ本発明の一実施形態を説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

図１は車両用燃料供給システム１１の全体構成を概略的に示す。燃料供給システム１１は本発明の一実施形態に係るフューエルポンプモジュール１２を備える。フューエルポンプモジュール１２のポンプケース１３は中心軸線Ｃｎを有する円筒形に形作られる。円筒形の軸方向で一端には入口１４が区画される。円筒形の軸方向で他端には出口１５および戻し口１６が区画される。入口１４はニップル１７で形成される。ニップル１７には燃料タンク１８に繋がる燃料管１９が結合される。出口１５は同様にニップル２１で形成される。ニップル２１には例えば燃料噴射装置２２に接続される燃料管２３が結合される。燃料噴射装置２２は例えばエンジン２５の吸気路に繋がる吸気道２６に臨む。戻し口１６は同様にニップル２７で形成される。ニップル２７には燃料タンク１８に繋がる戻し管２８が結合される。戻し口１６は燃料タンク１８に燃料を送り出す。燃料供給システム１１は例えば自動二輪車といった鞍乗り型車両に搭載される。   FIG. 1 schematically shows the overall configuration of a vehicle fuel supply system 11. The fuel supply system 11 includes a fuel pump module 12 according to an embodiment of the present invention. The pump case 13 of the fuel pump module 12 is formed in a cylindrical shape having a central axis Cn. An inlet 14 is defined at one end in the axial direction of the cylindrical shape. An outlet 15 and a return port 16 are defined at the other end in the cylindrical axial direction. The inlet 14 is formed by a nipple 17. A fuel pipe 19 connected to the fuel tank 18 is coupled to the nipple 17. The outlet 15 is likewise formed by a nipple 21. For example, a fuel pipe 23 connected to the fuel injection device 22 is coupled to the nipple 21. The fuel injection device 22 faces an intake passage 26 connected to an intake passage of the engine 25, for example. The return port 16 is similarly formed by a nipple 27. A return pipe 28 connected to the fuel tank 18 is coupled to the nipple 27. The return port 16 sends fuel to the fuel tank 18. The fuel supply system 11 is mounted on a saddle-ride type vehicle such as a motorcycle.

フューエルポンプモジュール１２ではポンプケース１３にフューエルポンプ３１が収容される。フューエルポンプ３１は金属製の筒体３２を有する。筒体３２の第１端に第１端面部材３３が嵌め込まれる。第１端面部材３３には吸込口３４を区画する圧入管（第１接続管）３５が一体に形成される。第１端面部材３３は例えば硬質の樹脂材料から成型されればよい。圧入管３５はポンプケース１３に区画される第１接続流路３６に圧入で固定される。 In the fuel pump module 12, a fuel pump 31 is accommodated in the pump case 13. The fuel pump 31 has a metal cylinder 32. The first end surface member 33 is fitted into the first end of the cylindrical body 32. The first end face member 33 is integrally formed with a press-fit pipe ( first connection pipe) 35 that partitions the suction port 34. The first end face member 33 may be molded from, for example, a hard resin material. The press-fit pipe 35 is fixed by press-fitting into the first connection flow path 36 defined by the pump case 13.

筒体３２の第２端に第２端面部材３７が嵌め込まれる。第２端面部材３７には吐出口３８を区画する第２接続管３９が一体に形成される。第２端面部材３７は例えば硬質の樹脂材料から成型されればよい。第２接続管３９はポンプケース１３に区画される第２接続流路４１に受け入れられる。第２接続管３９は第２接続流路４１にスライド自在に挿入される。第２接続管３９の外周にはシール部材４２が装着される。シール部材４２は、第２接続管３９のスライド動作を許容しつつ第２接続流路４１内で第２接続管３９の液密性を確立する。 The second end surface member 37 is fitted into the second end of the cylindrical body 32. The second end surface member 37 is integrally formed with a second connection pipe 39 that defines the discharge port 38. The second end surface member 37 may be molded from, for example, a hard resin material. The second connection pipe 39 is received in the second connection flow path 41 partitioned by the pump case 13. The second connection pipe 39 is slidably inserted into the second connection channel 41. A seal member 42 is attached to the outer periphery of the second connection pipe 39. Sealing member 42 establishes a fluid-tightness of the second connecting pipe 39 in the second connecting flow channel 41 while allowing sliding movement of the second connecting pipe 39.

フューエルポンプ３１はインペラー４３を備える。インペラー４３は第１端面部材３３に接するインペラー室４４に収容される。インペラー４３は回転軸４５に連結される。回転軸４５には電動モーターのローター４６が接続される。ローター４６はステーター４７で囲まれる。ローター４６およびステーター４７の相互作用で回転軸４５の回転は引き起こされる。回転軸４５の回転時、インペラー４３は回転軸４５の軸心回りで回転する。インペラー４３の回転に基づき吐出圧は生成される。   The fuel pump 31 includes an impeller 43. The impeller 43 is accommodated in an impeller chamber 44 that contacts the first end face member 33. The impeller 43 is connected to the rotation shaft 45. A rotor 46 of an electric motor is connected to the rotating shaft 45. The rotor 46 is surrounded by a stator 47. The rotation of the rotating shaft 45 is caused by the interaction of the rotor 46 and the stator 47. When the rotating shaft 45 rotates, the impeller 43 rotates around the axis of the rotating shaft 45. A discharge pressure is generated based on the rotation of the impeller 43.

第１端面部材３３には脱気孔４８が形成される。脱気孔４８はインペラー室４４とフューエルポンプ３１外側の収容空間とを接続する。フューエルポンプ３１に取り込まれる燃料中に混在する気体は脱気孔４８から排出される。   A deaeration hole 48 is formed in the first end face member 33. The deaeration hole 48 connects the impeller chamber 44 and the accommodation space outside the fuel pump 31. The gas mixed in the fuel taken into the fuel pump 31 is discharged from the deaeration hole 48.

ローター４６は回転軸４５回りで円筒形の軌道を描く。ステーター４７はローター４６の軌道に倣って円筒形に沿って配置される。こうして筒体３２は回転軸４５に同軸の円筒形に形作られる。圧入管３５および第２接続管３９はそれぞれ回転軸４５に平行な中心軸線を有する。圧入管３５の第１接続流路３６は圧入管３５に同軸に円筒形空間で形成される。第２接続管３９の第２接続流路４１は同様に第２接続管３９に同軸に円筒形空間で形成される。こうして回転軸４５に平行に「嵌め合い方向」は規定される。 The rotor 46 draws a cylindrical orbit around the rotation axis 45. The stator 47 is arranged along a cylindrical shape following the path of the rotor 46. Thus, the cylindrical body 32 is formed in a cylindrical shape coaxial with the rotation shaft 45. The press-fit pipe 35 and the second connection pipe 39 each have a central axis parallel to the rotation axis 45. The first connection flow path 36 of the press-fit pipe 35 is formed in a cylindrical space coaxially with the press-fit pipe 35. The second connection channel 41 of the second connection pipe 39 is formed in a cylindrical space coaxial with the second connecting pipe 39 as well. Thus, the “fitting direction” is defined in parallel with the rotation shaft 45.

ポンプケース１３は樹脂製の第１ケース部材５１および樹脂製の第２ケース部材５２を備える。フューエルポンプ３１の第１端は第１ケース部材５１に支持される。フューエルポンプ３１の第２端は第２ケース部材５２に支持される。第１ケース部材５１と第２ケース部材５２との間にフューエルポンプ３１の収容空間５３は区画される。第１ケース部材５１に入口１４および第１接続流路３６は区画される。第２ケース部材５２に出口１５および第２接続流路４１は区画される。ここでは、第１ケース部材５１は有底の筒形状に形成される。第１ケース部材５１の開放端にはフランジ５１ａが形成され、第２ケース部材５２はフランジ５１ａに重ねられる蓋体に形成される。 The pump case 13 includes a first case member 51 made of resin and a second case member 52 made of resin. The first end of the fuel pump 31 is supported by the first case member 51. The second end of the fuel pump 31 is supported by the second case member 52. A housing space 53 for the fuel pump 31 is defined between the first case member 51 and the second case member 52. The inlet 14 and the first connection flow path 36 are defined in the first case member 51. The outlet 15 and the second connection flow path 41 are defined in the second case member 52. Here, the first case member 51 is formed in a bottomed cylindrical shape. A flange 51a is formed at the open end of the first case member 51, and the second case member 52 is formed on a lid that is overlaid on the flange 51a.

第１ケース部材５１の開放端５４と第２ケース部材５２の開放端５５とは相互に面合わせされる。こうして接合面が形成される。接合面は途切れなく収容空間５３の全周にわたって溶着域５６を有する。面同士の溶着は第１ケース部材５１と第２ケース部材５２との間でシールを形成する。   The open end 54 of the first case member 51 and the open end 55 of the second case member 52 are flush with each other. In this way, a joint surface is formed. The joint surface has a welding area 56 over the entire circumference of the accommodation space 53 without interruption. The welding between the surfaces forms a seal between the first case member 51 and the second case member 52.

第２ケース部材５２には第２接続流路４１および出口１５の間で第２接続流路４１から分岐する調圧路５７が形成される。調圧路５７は第２ケース部材５２の開放端５５で収容空間５３に開口する。調圧路５７には調圧弁５８が組み込まれる。調圧弁５８は、第２ケース部材５２に嵌め込まれる調圧弁本体５８ａに固定される弁座５９と、弁座５９に着座する球体の弁体６１と、弁座５９に向かって弁体６１を押し込む力を発揮する弾性体６２とを備える。第２接続流路４１内の圧力が上昇し、弾性体６２の押し圧を上回ると、第２接続流路４１から燃料は調圧弁５８を通過して収容空間５３内に流れ込む。 The second case member 52 is formed with a pressure regulating path 57 that branches from the second connection channel 41 between the second connection channel 41 and the outlet 15. The pressure regulation path 57 opens into the accommodation space 53 at the open end 55 of the second case member 52. A pressure regulating valve 58 is incorporated in the pressure regulating path 57. The pressure regulating valve 58 includes a valve seat 59 fixed to the pressure regulating valve main body 58 a fitted in the second case member 52, a spherical valve body 61 seated on the valve seat 59, and the valve body 61 is pushed toward the valve seat 59. And an elastic body 62 that exerts force. When the pressure in the second connection flow path 41 rises and exceeds the pressing pressure of the elastic body 62, the fuel flows from the second connection flow path 41 into the accommodating space 53 through the pressure regulating valve 58.

第２ケース部材５２に戻し口１６は区画される。戻し口１６は収容空間５３で開口する戻し通路６３に接続される。戻し通路６３は、収容空間５３の内側でフューエルポンプ３１の外側に区画される通路６４に接続される。フューエルポンプ３１の第１端面部材３３は間隔を空けて第１ケース部材５１の端壁５１ｂに向き合わせられる。こうして第１端面部材３３と第１ケース部材５１の端壁５１ｂとの間に区画される空間は通路６４に接続される。当該空間に脱気孔４８は開口する。同様に、フューエルポンプ３１の第２端面部材３７は間隔を空けて第２ケース部材５２に向き合わせられる。こうして第２端面部材３７と第２ケース部材５２との間に区画される空間は通路６４に接続される。当該空間に調圧路５７は開口する。   The return port 16 is defined in the second case member 52. The return port 16 is connected to a return passage 63 that opens in the accommodation space 53. The return passage 63 is connected to a passage 64 that is partitioned inside the accommodation space 53 and outside the fuel pump 31. The first end face member 33 of the fuel pump 31 is opposed to the end wall 51b of the first case member 51 with a space therebetween. Thus, the space defined between the first end surface member 33 and the end wall 51 b of the first case member 51 is connected to the passage 64. A deaeration hole 48 opens in the space. Similarly, the second end surface member 37 of the fuel pump 31 is opposed to the second case member 52 with a space therebetween. Thus, the space defined between the second end face member 37 and the second case member 52 is connected to the passage 64. The pressure regulation path 57 opens in the space.

第１ケース部材５１で収容空間５３に接する内面にはリブ６５が形成される。リブ６５はフューエルポンプ３１の長手方向に延びる。図２に示されるように、リブ６５はフューエルポンプ３１の占有空間に沿って形成される。リブ６５同士の間に前述の通路６４は区画される。ポンプケース１３はフューエルポンプ３１の筒体３２に同軸の円筒形状に形成される。   Ribs 65 are formed on the inner surface of the first case member 51 that contacts the accommodation space 53. The rib 65 extends in the longitudinal direction of the fuel pump 31. As shown in FIG. 2, the rib 65 is formed along the occupied space of the fuel pump 31. The aforementioned passage 64 is defined between the ribs 65. The pump case 13 is formed in a cylindrical shape coaxial with the cylinder 32 of the fuel pump 31.

フューエルポンプモジュール１２の組み立て方法を簡単に説明する。第１ケース部材５１、第２ケース部材５２およびフューエルポンプ３１が準備される。第２ケース部材５２には調圧弁５８は組み込まれる。第１ケース部材５１および第２ケース部材５２は樹脂材料から成型されればよい。第１ケース部材５１の第１接続流路３６にフューエルポンプ３１の圧入管３５は圧入される。このとき、フューエルポンプ３１はリブ６５で案内されながら第１ケース部材５１に挿入される。したがって、フューエルポンプ３１の圧入管３５は容易く第１ケース部材５１の第１接続流路３６に進入することができる。こうして圧入管３５で圧入されたフューエルポンプ３１は第１ケース部材５１に保持される。 A method for assembling the fuel pump module 12 will be briefly described. The first case member 51, the second case member 52, and the fuel pump 31 are prepared. A pressure regulating valve 58 is incorporated in the second case member 52. The first case member 51 and the second case member 52 may be molded from a resin material. The press-fit pipe 35 of the fuel pump 31 is press-fitted into the first connection flow path 36 of the first case member 51. At this time, the fuel pump 31 is inserted into the first case member 51 while being guided by the rib 65. Therefore, the press-fit pipe 35 of the fuel pump 31 can easily enter the first connection flow path 36 of the first case member 51. The fuel pump 31 thus press-fitted by the press-fitting pipe 35 is held by the first case member 51.

続いて第１ケース部材５１に第２ケース部材５２は嵌め合わせられる。第１ケース部材５１および第２ケース部材５２の合わせ面には相互に嵌め合う凹凸形状が形成されればよい。第２ケース部材５２は第１ケース部材５１に向かって回転軸４５に平行な嵌め合い方向に動かされる。第２ケース部材５２の第２接続流路４１には第２接続管３９が進入していく。第２接続管３９には事前にシール部材４２が装着される。第１ケース部材５１および第２ケース部材５２の合わせ面同士が突き当てられると、合わせ面同士は収容空間５３周りで全周にわたって溶着される。 Subsequently, the second case member 52 is fitted to the first case member 51. The mating surfaces of the first case member 51 and the second case member 52 may be formed with an uneven shape that fits together. The second case member 52 is moved toward the first case member 51 in the fitting direction parallel to the rotation shaft 45. The second connecting channel 41 of the second case member 52 progresses into the second connecting pipe 39. A seal member 42 is attached to the second connection pipe 39 in advance. When the mating surfaces of the first case member 51 and the second case member 52 are brought into contact with each other, the mating surfaces are welded around the accommodation space 53 over the entire circumference.

フューエルポンプモジュール１２では収容空間５３内にフューエルポンプ３１は収容される。溶着に応じて第１ケース部材５１の開放端５４と第２ケース部材５２の開放端５５との間で良好なシール性は確立される。しかも、こうした構造の形成にあたって溶着工程が用いられる。溶着工程では第１ケース部材５１上にフューエルポンプ３１は保持される。フューエルポンプ３１の位置決めと第１ケース部材５１および第２ケース部材５２の結合とは達成される。製造工程は削減される。製造コストは削減される。   In the fuel pump module 12, the fuel pump 31 is accommodated in the accommodating space 53. A good sealing property is established between the open end 54 of the first case member 51 and the open end 55 of the second case member 52 in accordance with the welding. In addition, a welding process is used to form such a structure. In the welding process, the fuel pump 31 is held on the first case member 51. The positioning of the fuel pump 31 and the coupling of the first case member 51 and the second case member 52 are achieved. The manufacturing process is reduced. Manufacturing costs are reduced.

フューエルポンプモジュール１２の組み立てにあたって、第１ケース部材５１および第２ケース部材５２は相互に結合される。このとき、第１ケース部材５１に対して嵌め合い方向に第２ケース部材５２が動かされると、開放端５４、５５同士は面合わせされると同時に第２ケース部材５２の第２接続流路４１にフューエルポンプ３１の第２接続管３９は差し込まれる。１つの動きで第１および第２ケース部材５１、５２の結合と第２ケース部材５２およびフューエルポンプ３１の嵌め合いとは達成される。製造工程は削減される。製造コストは削減される。 In assembling the fuel pump module 12, the first case member 51 and the second case member 52 are coupled to each other. At this time, when the second case member 52 is moved in the fitting direction with respect to the first case member 51, the open ends 54 and 55 are faced together and at the same time, the second connection channel 41 of the second case member 52 . The second connection pipe 39 of the fuel pump 31 is inserted into the first. The coupling of the first and second case members 51 and 52 and the fitting of the second case member 52 and the fuel pump 31 are achieved by one movement. The manufacturing process is reduced. Manufacturing costs are reduced.

フューエルポンプモジュール１２ではフューエルポンプ３１に圧入管３５が形成される。圧入管３５は第１ケース部材５１に区画される第１接続流路３６に圧入で固定される。フューエルポンプ３１は確実に第１ケース部材５１に固定される。 In the fuel pump module 12, a press-fit pipe 35 is formed in the fuel pump 31. The press-fit pipe 35 is fixed by press-fitting into the first connection flow path 36 defined by the first case member 51. The fuel pump 31 is securely fixed to the first case member 51.

フューエルポンプモジュール１２ではフューエルポンプ３１に第２接続管３９が形成される。第２接続管３９は第２接続流路４１にスライド自在に挿入される。したがって、第１ケース部材５１や第２ケース部材５２で寸法精度のばらつきが生じても、あるいは、燃料の膨潤に基づき第１ケース部材５１および第２ケース部材５２に寸法の変動が生じても、第２接続流路４１に対する第２接続管３９のスライド動作に応じて寸法のばらつきや変動は吸収される。しかも、第２接続管３９の外周にはシール部材４２が装着される。シール部材４２は第２接続管３９のスライド動作に拘わらず液密性を維持する。 In the fuel pump module 12, a second connection pipe 39 is formed in the fuel pump 31. The second connection pipe 39 is slidably inserted into the second connection channel 41. Therefore, even if variations in dimensional accuracy occur in the first case member 51 and the second case member 52, or variations in dimensions occur in the first case member 51 and the second case member 52 due to fuel swelling, In accordance with the sliding operation of the second connection pipe 39 with respect to the second connection flow path 41, dimensional variations and fluctuations are absorbed. In addition, a seal member 42 is attached to the outer periphery of the second connection pipe 39. The seal member 42 maintains liquid tightness regardless of the sliding operation of the second connection pipe 39.

第１ケース部材５１では、収容空間５３に接する内面にリブ６５が形成される。リブ６５の働きで第１ケース部材５１の剛性は高まる。したがって、第１ケース部材５１の成型や第１ケース部材５１および第２ケース部材５２の溶着にあたって第１ケース部材５１の歪みは最大限に抑制される。しかも、リブ６５はフューエルポンプ３１の長手方向にフューエルポンプ３１の占有空間に沿って延びるので、溶着作業にあたってリブ６５は第１ケース部材５１内でフューエルポンプ３１を保持することができる。作業効率は高められる。   In the first case member 51, ribs 65 are formed on the inner surface in contact with the accommodation space 53. The rigidity of the first case member 51 is increased by the action of the rib 65. Therefore, the distortion of the first case member 51 is suppressed to the maximum when the first case member 51 is molded and the first case member 51 and the second case member 52 are welded. Moreover, since the rib 65 extends along the occupied space of the fuel pump 31 in the longitudinal direction of the fuel pump 31, the rib 65 can hold the fuel pump 31 in the first case member 51 during the welding operation. Work efficiency is increased.

フューエルポンプモジュール１２では、溶着によって密閉された収容空間５３は脱気孔４８から排出された燃料の通路６４として利用される。フューエルポンプモジュール１２の構造は簡素化される。加えて、フューエルポンプ３１の振動や音は溶着で密閉された収容空間５３内に閉じ込められる。振動や音の漏れは抑制される。 In the fuel pump module 12, the accommodation space 53 sealed by welding is used as a passage 64 for the fuel discharged from the deaeration hole 48. The structure of the fuel pump module 12 is simplified. In addition, the vibration and sound of the fuel pump 31 are confined in the housing space 53 sealed by welding. Leakage of vibration and sound Ru is suppressed.

１２…フューエルポンプモジュール、１６…戻し口、１８…燃料タンク、３１…フューエルポンプ、３４…吸込口、３５…第１接続管（圧入管）、３６…第１接続流路、３８…吐出口、３９…第２接続管、４１…第２接続流路、４２…シール部材、４８…脱気孔、５１…第１ケース部材、５２…第２ケース部材、５３…収容空間、５４…開放端、５５…開放端、５６…溶着域、６４…通路、６５…リブ。 DESCRIPTION OF SYMBOLS 12 ... Fuel pump module, 16 ... Return port, 18 ... Fuel tank, 31 ... Fuel pump, 34 ... Suction port, 35 ... 1st connection pipe (press-in pipe), 36 ... 1st connection flow path, 38 ... Discharge port, DESCRIPTION OF SYMBOLS 39 ... 2nd connection pipe, 41 ... 2nd connection flow path, 42 ... Seal member, 48 ... Deaeration hole, 51 ... 1st case member, 52 ... 2nd case member, 53 ... Storage space, 54 ... Open end, 55 ... open end, 56 ... welding zone, 64 ... passage, 65 ... rib.

Claims (7)

第１端に吸込口（３４）を有し、第１端の反対側の第２端に吐出口（３８）を有するフューエルポンプ（３１）と、
前記フューエルポンプ（３１）の前記第１端または前記第２端を保持する樹脂製の第１ケース部材（５１）と、
前記第１ケース部材（５１）の開放端（５４）に面合わせされる開放端（５５）に途切れなく全周にわたって溶着域（５６）を有し、前記第１ケース部材（５１）との間に前記フューエルポンプ（３１）の収容空間（５３）を区画する樹脂製の第２ケース部材（５２）と
を備えることを特徴とするフューエルポンプモジュール。 A fuel pump (31) having a suction port (34) at the first end and a discharge port (38) at the second end opposite to the first end;
A first case member (51) made of resin that holds the first end or the second end of the fuel pump (31);
The open end (55) faced to the open end (54) of the first case member (51) has a welding region (56) over the entire circumference without interruption, and between the first case member (51). A fuel pump module comprising a resin-made second case member (52) that defines a housing space (53) of the fuel pump (31). 請求項１に記載のフューエルポンプモジュールにおいて、
前記フューエルポンプ（３１）に形成されて前記吸込口（３４）または前記吐出口（３８）を区画し、前記第１ケース部材（５１）および前記第２ケース部材（５２）の結合にあたって前記第２ケース部材（５２）の動きで規定される嵌め合い方向に延びる接続管（３９）と、
前記第２ケース部材（５２）に区画されて前記嵌め合い方向に延び、前記接続管（３９）を受け入れる接続流路（４１）と
を備えることを特徴とするフューエルポンプモジュール。 The fuel pump module according to claim 1,
Formed in the fuel pump (31) to partition the suction port (34) or the discharge port (38), and to connect the first case member (51) and the second case member (52), the second case A connecting pipe (39) extending in the fitting direction defined by the movement of the case member (52);
A fuel pump module comprising: a connection channel (41) that is partitioned by the second case member (52) and extends in the fitting direction and receives the connection pipe (39). 請求項２に記載のフューエルポンプモジュールにおいて、前記フューエルポンプ（３１）に形成されて、前記吸込口（３４）または前記吐出口（３８）の残りを区画し、前記第１ケース部材（５１）に区画される接続流路（３６）に固定される第２接続管（３５）を備えることを特徴とするフューエルポンプモジュール。   3. The fuel pump module according to claim 2, wherein the fuel pump module is formed in the fuel pump (31) to partition a remaining portion of the suction port (34) or the discharge port (38), and the first case member (51). A fuel pump module comprising a second connection pipe (35) fixed to a connection flow path (36) defined. 請求項３に記載のフューエルポンプモジュールにおいて、固定にあたって前記第２接続管（３５）は前記接続流路（３６）に圧入されることを特徴とするフューエルポンプモジュール。   The fuel pump module according to claim 3, wherein the second connection pipe (35) is press-fitted into the connection flow path (36) for fixing. 請求項３または４に記載のフューエルポンプモジュールにおいて、前記接続流路（４１）にスライド自在に挿入される前記接続管（３９）の外周に装着されて、前記接続管（３９）のスライド動作を許容しつつ前記接続流路（４１）内で前記接続管（３９）の液密性を確立するシール部材（４２）を備えることを特徴とするフューエルポンプモジュール。   The fuel pump module according to claim 3 or 4, wherein the fuel pump module is mounted on an outer periphery of the connection pipe (39) slidably inserted into the connection flow path (41) to perform a sliding operation of the connection pipe (39). A fuel pump module comprising a seal member (42) that establishes liquid-tightness of the connection pipe (39) in the connection flow path (41) while allowing. 請求項１〜５のいずれか１項に記載のフューエルポンプモジュールにおいて、前記第１ケース部材（５１）および前記第２ケース部材（５２）の少なくともいずれかで前記収容空間（５３）に接する内面に形成されて、前記フューエルポンプ（３１）の長手方向に前記フューエルポンプ（３１）の占有空間に沿って延びるリブ（６５）を備えることを特徴とするフューエルポンプモジュール。   The fuel pump module according to any one of claims 1 to 5, wherein at least one of the first case member (51) and the second case member (52) is on an inner surface in contact with the accommodation space (53). A fuel pump module comprising a rib (65) formed and extending along an occupied space of the fuel pump (31) in a longitudinal direction of the fuel pump (31). 請求項１〜６のいずれか１項に記載のフューエルポンプモジュールにおいて、
前記第１端で前記フューエルポンプ（３１）に形成されて、前記フューエルポンプ（３１）に取り込まれる燃料中に混在する気体を排出する脱気孔（４８）と、
前記収容空間（５３）の内側で前記フューエルポンプ（３１）の外側に区画されて、前記収容空間（５３）に開口し燃料タンク（１８）に燃料を送り出す戻し口（１６）に前記脱気孔（４８）を接続する通路（６４）と
を備えることを特徴とするフューエルポンプモジュール。
In the fuel pump module according to any one of claims 1 to 6,
A deaeration hole (48) formed in the fuel pump (31) at the first end for discharging gas mixed in the fuel taken into the fuel pump (31);
The deaeration holes (16) are formed in the return port (16) that is partitioned inside the accommodation space (53) and outside the fuel pump (31) and opens into the accommodation space (53) and sends fuel to the fuel tank (18). 48). A fuel pump module comprising a passage (64) connecting 48).
JP2016041970A 2016-03-04 2016-03-04 Fuel pump module Active JP6254623B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016041970A JP6254623B2 (en) 2016-03-04 2016-03-04 Fuel pump module
CN201710054422.0A CN107152359B (en) 2016-03-04 2017-01-24 Fuel pump module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016041970A JP6254623B2 (en) 2016-03-04 2016-03-04 Fuel pump module

Publications (2)

Publication Number Publication Date
JP2017155711A true JP2017155711A (en) 2017-09-07
JP6254623B2 JP6254623B2 (en) 2017-12-27

Family

ID=59791735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016041970A Active JP6254623B2 (en) 2016-03-04 2016-03-04 Fuel pump module

Country Status (2)

Country Link
JP (1) JP6254623B2 (en)
CN (1) CN107152359B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6467489B1 (en) * 2017-12-14 2019-02-13 株式会社ケーヒン Fuel supply device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021071102A (en) * 2019-11-01 2021-05-06 愛三工業株式会社 EGR valve system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11173228A (en) * 1997-12-05 1999-06-29 Keihin Corp Fuel injector for two wheeler
JPH11303704A (en) * 1998-04-17 1999-11-02 Keihin Corp Fuel pump device
JP2000179422A (en) * 1998-12-11 2000-06-27 Keihin Corp Fuel supply device for fuel injection device of motorcycle
JP2004036550A (en) * 2002-07-05 2004-02-05 Keihin Corp Fuel injection device for marine engine
JP2006144552A (en) * 2004-11-16 2006-06-08 Keihin Corp In-line type fuel supply device for two wheeler
JP2007146833A (en) * 2005-11-02 2007-06-14 Aisan Ind Co Ltd Fuel pump
JP2014092142A (en) * 2012-11-06 2014-05-19 Keihin Corp Fuel supply device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009047332A1 (en) * 2009-12-01 2011-06-09 Robert Bosch Gmbh Fuel pump has housing which is manufactured from plastic, where plastic has partial transparency for spectrum of laser beams, and plastic is made of polyamide
JP5372902B2 (en) * 2010-12-24 2013-12-18 本田技研工業株式会社 Vehicle fuel supply system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11173228A (en) * 1997-12-05 1999-06-29 Keihin Corp Fuel injector for two wheeler
JPH11303704A (en) * 1998-04-17 1999-11-02 Keihin Corp Fuel pump device
JP2000179422A (en) * 1998-12-11 2000-06-27 Keihin Corp Fuel supply device for fuel injection device of motorcycle
JP2004036550A (en) * 2002-07-05 2004-02-05 Keihin Corp Fuel injection device for marine engine
JP2006144552A (en) * 2004-11-16 2006-06-08 Keihin Corp In-line type fuel supply device for two wheeler
JP2007146833A (en) * 2005-11-02 2007-06-14 Aisan Ind Co Ltd Fuel pump
JP2014092142A (en) * 2012-11-06 2014-05-19 Keihin Corp Fuel supply device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6467489B1 (en) * 2017-12-14 2019-02-13 株式会社ケーヒン Fuel supply device
JP2019105248A (en) * 2017-12-14 2019-06-27 株式会社ケーヒン Fuel supply device

Also Published As

Publication number Publication date
JP6254623B2 (en) 2017-12-27
CN107152359A (en) 2017-09-12
CN107152359B (en) 2020-03-31

Similar Documents

Publication Publication Date Title
JP3858272B2 (en) Pressure control valve and fuel supply device using the same
KR101943957B1 (en) Suction oil filter assembly for gear units or combustion engines
EP1441126A2 (en) Multistage gear pump
JP6254623B2 (en) Fuel pump module
JP2011064166A (en) Piston pump
KR20160068648A (en) Axially split pump
CN103782020B (en) The sealing structure of petrolift
JP2017166459A (en) Fuel filter and fuel pump module
CN114616415B (en) Valve device
US10731646B2 (en) Vane pump device having two different discharge amounts
EP3572662B1 (en) Fuel system with a pressure pulsation damper
JP2013007299A (en) Fuel supply device
WO1997021032A1 (en) Vane pump
CN219513876U (en) Electronic oil pump and gearbox comprising same
US10662944B2 (en) Vane pump device having multiple discharge pressures
CN113423956B (en) Non-positive displacement pump and liquid supply device
JP2018150840A (en) Fuel pump
JP2018063034A (en) Attachment structure of baffle plate
US20230167829A1 (en) Turbo fluid machine
JP2018150839A (en) Fuel pump
WO2021054176A1 (en) Fuel pump module
JP6793792B1 (en) Pump device
WO2021054003A1 (en) Fuel pump module
WO2021054096A1 (en) Fuel pump module
CN210859000U (en) Fuel pump with integrated pump body assembly and motor

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170616

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170913

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20171108

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20171122

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20171130

R150 Certificate of patent or registration of utility model

Ref document number: 6254623

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250