JP2003254187A - Fuel pump module of vehicle - Google Patents
Fuel pump module of vehicleInfo
- Publication number
- JP2003254187A JP2003254187A JP2002054278A JP2002054278A JP2003254187A JP 2003254187 A JP2003254187 A JP 2003254187A JP 2002054278 A JP2002054278 A JP 2002054278A JP 2002054278 A JP2002054278 A JP 2002054278A JP 2003254187 A JP2003254187 A JP 2003254187A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel pump
- vapor
- module
- electric
- 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
Links
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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
- F02M63/0215—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine by draining or closing fuel conduits
-
- 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
-
- 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
- F02M37/20—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 characterised by means for preventing vapour lock
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
- F02M61/145—Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【発明の属する技術分野】本発明は，自動二輪車等の車
両の燃料ポンプモジュールに関し，特に，燃料タンクか
ら燃料を受け入れる燃料入口，エンジンの燃料噴射弁に
燃料を供給する燃料出口及び，余剰燃料を燃料タンクに
還流させる燃料戻し口を外側に開口するモジュールケー
スに，燃料入口及び燃料出口間を接続する流路に直列に
介裝される電動燃料ポンプ及び燃料フィルタと，燃料出
口及び燃料戻し口間を接続する調圧通路に介裝される燃
料圧力レギュレータとを収容したものゝ改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel pump module for vehicles such as motorcycles, and more particularly to a fuel inlet for receiving fuel from a fuel tank, a fuel outlet for supplying fuel to a fuel injection valve of an engine, and a surplus fuel. An electric fuel pump and a fuel filter connected in series with a flow path connecting the fuel inlet and the fuel outlet to a module case having a fuel return port that recirculates to the fuel tank to the outside, and between the fuel outlet and the fuel return port. And a fuel pressure regulator which is interposed in a pressure regulating passage for connecting with the fuel pressure regulator.
【０００２】[0002]
【従来の技術】かゝる燃料ポンプモジュールは，例えば
特開２００１−２４８５１０号公報に開示されるている
ように，既に知られている。2. Description of the Related Art Such a fuel pump module is already known, as disclosed in, for example, Japanese Patent Laid-Open No. 2001-248510.
【０００３】[0003]
【発明が解決しようとする課題】従来のかゝる燃料ポン
プモジュールでは，電動燃料ポンプ及び燃料フィルタ
を，それらを同軸線上に直列に配置しているため，全長
が非常に長くなってしまい，これをエンジンに搭載する
際，コンパクトにレイアウトすることが困難となる。ま
たこの燃料ポンプモジュールをエンジンに近接して配置
する場合には，エンジンの輻射熱の影響を受けて内部に
ベーパを発生させ，エンジンの熱間始動や高速運転に支
障を来す虞がある。In such a conventional fuel pump module, since the electric fuel pump and the fuel filter are arranged in series on the coaxial line, the total length becomes very long, which is a problem. When mounted on an engine, it becomes difficult to make a compact layout. Further, when the fuel pump module is arranged close to the engine, radiant heat from the engine may generate an internal vapor, which may interfere with hot starting or high-speed operation of the engine.
【０００４】本発明は，かゝる事情に鑑みてなされたも
ので，全長を大幅に短縮することが可能であり，しかも
内部で発生したベーパを外部に排除し得るようにした，
前記車両の燃料ポンプモジュールを提供することを目的
とする。The present invention has been made in view of the above circumstances, and it is possible to significantly reduce the total length, and further, it is possible to remove vapor generated inside to the outside.
An object of the present invention is to provide a fuel pump module for the vehicle.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に，本発明は，燃料タンクから燃料を受け入れる燃料入
口，エンジンの燃料噴射弁に燃料を供給する燃料出口及
び，余剰燃料を燃料タンクに還流させる燃料戻し口を外
側に開口するモジュールケースに，燃料入口及び燃料出
口間を接続する流路に直列に介裝される電動燃料ポンプ
及び燃料フィルタと，燃料出口及び燃料戻し口間を接続
する調圧通路に介裝される燃料圧力レギュレータとを収
容した，車両の燃料ポンプモジュールにおいて，前記電
動燃料ポンプ及び前記燃料フィルタを，それらの長手方
向軸線が互いに平行となるように配置し，これら電動燃
料ポンプ及び燃料フィルタで発生したベーパを含む燃料
を受容して，その燃料から分離したベーパを前記燃料戻
し口に送るベーパ分離室を，該電動燃料ポンプ及び燃料
フィルタの長手方向一端に隣接して前記モジュールケー
ス内に設けたことを第１の特徴とする。In order to achieve the above object, the present invention is directed to a fuel inlet for receiving fuel from a fuel tank, a fuel outlet for supplying fuel to a fuel injection valve of an engine, and excess fuel to a fuel tank. An electric fuel pump and a fuel filter connected in series to a flow path connecting the fuel inlet and the fuel outlet, and the fuel outlet and the fuel return port are connected to a module case that opens a fuel return port to recirculate to the outside. In a fuel pump module of a vehicle containing a fuel pressure regulator interposed in a pressure regulating passage, the electric fuel pump and the fuel filter are arranged such that their longitudinal axes are parallel to each other. A vapor that receives fuel containing vapor generated by a fuel pump and a fuel filter and sends vapor separated from the fuel to the fuel return port. Hanareshitsu and the first, characterized in that provided in the module case adjacent to one longitudinal end of the electric fuel pump and the fuel filter.
【０００６】この第１の特徴によれば，電動燃料ポンプ
及び燃料フィルタの平行配置により，モジュールケース
の全長を大幅に短縮して，燃料ポンプモジュールのコン
パクト化を図ることができる。According to this first feature, the parallel arrangement of the electric fuel pump and the fuel filter can greatly reduce the overall length of the module case, thereby making the fuel pump module compact.
【０００７】また燃料フィルタ及び電動燃料ポンプ内で
発生したベーパは燃料と共にベーパ分離室に受容され，
該室で燃料とベーパの分離が行われ，そのベーパは浮上
して燃料戻し口に送られるので，燃料噴射弁には，ベー
パを含まない良好な状態の燃料を供給することができ，
常にエンジンの安定した運転状態を確保することができ
る。Further, the vapor generated in the fuel filter and the electric fuel pump is received in the vapor separation chamber together with the fuel,
Since the fuel and the vapor are separated in the chamber and the vapor is floated and sent to the fuel return port, it is possible to supply the fuel injection valve with the fuel in a good state containing no vapor,
It is possible to always ensure a stable operating state of the engine.
【０００８】また本発明は，第１の特徴に加えて，前記
ベーパ分離室上部のベーパ排出孔を，前記燃料圧力レギ
ュレータより下流の前記調圧通路に開口させて，該調圧
通路を余剰燃料が通過することにより生じるエジェクタ
効果により前記ベーパ排出孔に負圧を与えるようにした
ことを第２の特徴とする。In addition to the first feature of the present invention, the vapor discharge hole in the upper portion of the vapor separation chamber is opened in the pressure regulating passage downstream of the fuel pressure regulator, and the pressure regulating passage is provided with excess fuel. The second feature is that a negative pressure is applied to the vapor discharge hole by the ejector effect generated by the passage of the gas.
【０００９】この第２の特徴によれば，前記エジェクタ
効果によりベーパ排出孔に負圧が与えられると，ベーパ
分離室から調圧通路へのベーパの排出を効果的に促進す
ることができ，これに伴いベーパ分離室でのベーパ分離
作用をも促進することができる。According to the second feature, when negative pressure is applied to the vapor discharge hole by the ejector effect, the discharge of vapor from the vapor separation chamber to the pressure adjusting passage can be effectively promoted. Accordingly, the vapor separation action in the vapor separation chamber can be promoted.
【００１０】さらに本発明は，第１又は第２の特徴に加
えて，前記燃料フィルタを，前記燃料入口及び前記電動
燃料ポンプ間の流路に介裝したことを第３の特徴とす
る。Further, in addition to the first or second feature, the present invention has a third feature in that the fuel filter is provided in a flow path between the fuel inlet and the electric fuel pump.
【００１１】この第３の特徴によれば，電動燃料ポンプ
は，ブラシレス型モータの内蔵を可能にし，また燃料フ
ィルタは安価な低圧型の採用を可能にする。According to the third feature, the electric fuel pump allows a brushless motor to be built in, and the fuel filter can be an inexpensive low pressure type.
【００１２】さらにまた本発明は，第１又は第２の特徴
に加えて，前記モジュールケース内を前記燃料入口に連
通して燃料を満たし，その燃料中に前記電動燃料ポンプ
を浸漬し，この電動燃料ポンプ及び前記燃料出口間の流
路に前記燃料フィルタを介裝したことを第４の特徴とす
る。Furthermore, in addition to the first or second feature, the present invention is characterized in that the inside of the module case is communicated with the fuel inlet to fill the fuel, and the electric fuel pump is immersed in the fuel, A fourth feature is that the fuel filter is provided in a flow path between the fuel pump and the fuel outlet.
【００１３】この第４の特徴によれば，電動燃料ポンプ
の内蔵するモータをモジュールケース内の燃料をもって
冷却することができる。したがって，そのモータを通常
のブラシ付きとしても，そのブラシ摺動部を燃料により
効果的に冷却することができる。またその際，ブラシ摺
動部で発生する摩耗粉がモジュールケース内の燃料に混
じり，電動燃料ポンプに吸入されることがあっても，そ
の摩耗粉を燃料フィルタにより捕捉して，燃料噴射弁側
への流出を阻止することができる。According to the fourth feature, the motor contained in the electric fuel pump can be cooled by the fuel in the module case. Therefore, even if the motor has a normal brush, the brush sliding portion can be effectively cooled by the fuel. At that time, even if the abrasion powder generated at the sliding portion of the brush is mixed with the fuel in the module case and is sucked into the electric fuel pump, the abrasion powder is captured by the fuel filter and is injected into the fuel injection valve side. Can be prevented.
【００１４】さらにまた本発明は，第１〜第４の特徴の
何れかに加えて，前記モジュールケースを，エンジンの
吸気管の一側に隣接させて，これらモジュールケース及
び吸気管の長手方向軸線が互いに略直角をなすように配
置したことを第５の特徴とする。Further, in addition to any one of the first to fourth characteristics, the present invention is characterized in that the module case is adjacent to one side of the intake pipe of the engine, and the longitudinal axes of the module case and the intake pipe are arranged. The fifth feature is that they are arranged so as to be substantially perpendicular to each other.
【００１５】尚，前記吸気管は，後述する本発明の実施
例中のスロットルボディ６に対応する。The intake pipe corresponds to a throttle body 6 in an embodiment of the present invention described later.
【００１６】この第５の特徴によれば，燃料ポンプモジ
ュールの全長の短縮化と相俟って，エンジンの吸気系の
コンパクト化をもたらすことができる。According to the fifth feature, the intake system of the engine can be made compact in combination with the reduction of the total length of the fuel pump module.
【００１７】[0017]
【発明の実施の形態】本発明の実施の形態を，添付図面
に示す本発明の実施例に基づいて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described based on the embodiments of the present invention shown in the accompanying drawings.
【００１８】図１は本発明の第１実施例に係る燃料ポン
プモジュールを備えた自動二輪車の要部側面図，図２は
図１の２部の拡大縦断側面図，図３は図２の３−３線断
面図，図４は図３の４−４線断面図，図５は上記燃料ポ
ンプモジュールを含む，自動二輪車の燃料供給系の全体
概要図，図６は横転遮断弁の作用説明図，図７は本発明
の第２実施例に係る燃料ポンプモジュールを備えた自動
二輪車の燃料供給系の全体概要図である。FIG. 1 is a side view of an essential part of a motorcycle equipped with a fuel pump module according to a first embodiment of the present invention, FIG. 2 is an enlarged vertical side view of part 2 of FIG. 1, and FIG. -3 line sectional view, FIG. 4 is a sectional view taken along line 4-4 of FIG. 3, FIG. 5 is an overall schematic view of the fuel supply system of the motorcycle including the fuel pump module, and FIG. FIG. 7 is an overall schematic diagram of a fuel supply system of a motorcycle including a fuel pump module according to a second embodiment of the present invention.
【００１９】図１〜図７に示す本発明の第１実施例の説
明より始める。The description begins with a first embodiment of the present invention shown in FIGS.
【００２０】図１において，車両としての自動二輪車Ｍ
のボディフレーム１は，図示しないヘッドパイプから後
ろ下がりに延びるフロントパイプ１ｆと，それの後端か
ら起立して後方へ延出するリアパイプ１ｒとからなって
おり，そのフロントパイプ１ｆに，その下方に配置され
る４サイクルエンジンＥが架装され，またリアパイプ１
ｒ上に燃料タンクＴが設置される。In FIG. 1, a motorcycle M as a vehicle
The body frame 1 is composed of a front pipe 1f extending rearward and downward from a head pipe (not shown) and a rear pipe 1r standing upright from the rear end thereof and extending rearward. The rear pipe 1r is disposed below the front pipe 1f. 4 cycle engine E is installed and the rear pipe 1
A fuel tank T is installed on r.
【００２１】上記エンジンＥは，シリンダヘッド２を車
両前方に向けてシリンダブロック３を略水平に配置して
おり，そのシリンダヘッド２の上端面に，吸気ポート４
に連なる吸気道５を有するスロットルボディ６が接合さ
れ，このスロットルボディ６の上流端にエアクリーナ７
が接続される。またシリンダヘッド２の下端面には，排
気ポート８に連なる排気管９が接合される。In the engine E, the cylinder block 3 is arranged substantially horizontally with the cylinder head 2 facing the front of the vehicle, and the intake port 4 is provided on the upper end surface of the cylinder head 2.
A throttle body 6 having an intake passage 5 connected to is connected to the throttle body 6, and an air cleaner 7 is provided at the upstream end of the throttle body 6.
Are connected. An exhaust pipe 9 connected to the exhaust port 8 is joined to the lower end surface of the cylinder head 2.
【００２２】スロットルボディ６には，吸気道５を開閉
するスロットルバルブ１０が軸支されており，このスロ
ットルバルブ１０より下流側でスロットルボディ６の側
壁に形成された噴射弁取り付けボス１１に，吸気ポート
４に向けて燃料を噴射する電磁式の燃料噴射弁Ｉが装着
される。そして，この燃料噴射弁Ｉに燃料タンクＴの燃
料を供給する燃料ポンプモジュールＭｐがスロットルボ
ディ６に取り付けられる。A throttle valve 10 for opening and closing the intake passage 5 is rotatably supported by the throttle body 6, and an intake valve mounting boss 11 formed on a side wall of the throttle body 6 on the downstream side of the throttle valve 10 is provided with intake air. An electromagnetic fuel injection valve I that injects fuel toward the port 4 is mounted. A fuel pump module Mp for supplying the fuel in the fuel tank T to the fuel injection valve I is attached to the throttle body 6.
【００２３】先ず，この燃料ポンプモジュールＭｐの全
体構成について，図６の全体概要図により説明する。First, the overall structure of the fuel pump module Mp will be described with reference to the overall schematic diagram of FIG.
【００２４】燃料ポンプモジュールＭｐは，モジュール
ケース１２と，このモジュールケース１２内に収容され
る電動燃料ポンプ１３，低圧型燃料フィルタ１４，燃料
圧力レギュレータ１５及び横転遮断弁１６を主たる構成
要素としている。The fuel pump module Mp has a module case 12, an electric fuel pump 13 housed in the module case 12, a low pressure type fuel filter 14, a fuel pressure regulator 15 and a rollover shutoff valve 16 as main components.
【００２５】モジュールケース１２は，その外側面に燃
料入口２０，燃料出口２１及び燃料戻し口２２を開口し
ており，その燃料入口２０には，燃料タンクＴ底部から
延出した燃料供給管２３が接続され，燃料タンクＴ内の
燃料が重力の作用で燃料入口２０に流入するようになっ
ている。The module case 12 has a fuel inlet 20, a fuel outlet 21, and a fuel return port 22 on its outer surface. The fuel inlet 20 has a fuel supply pipe 23 extending from the bottom of the fuel tank T. The fuel in the fuel tank T is connected and flows into the fuel inlet 20 by the action of gravity.
【００２６】また燃料戻し口２２には，終端を燃料タン
クＴ内の気相部に開口する燃料戻し管２４が接続され，
燃料出口２１は燃料噴射弁Ｉの導入口に接続される。The fuel return port 22 is connected to a fuel return pipe 24 whose end opens to a gas phase portion in the fuel tank T,
The fuel outlet 21 is connected to the inlet of the fuel injection valve I.
【００２７】モジュールケース１２内には主室２５と，
この主室２５に隔壁２７を挟んで隣接するベーパ分離室
２６とが形成されており，その主室２５に電動燃料ポン
プ１３及び燃料フィルタ１４が収められる。その際，燃
料フィルタ１４は，その長手方向一端の入口管２８を前
記燃料入口２０に接続し，長手方向他端の出口管２９を
ベーパ分離室２６に開口させている。また電動燃料ポン
プ１３は，長手方向一端の吸入管３０及びベーパ排出管
３１をベーパ分離室２６に開口させ，長手方向他端の吐
出管３２を横転遮断弁１６の入口孔３３に連通させてい
る。In the module case 12, a main chamber 25,
A vapor separation chamber 26 adjacent to the main chamber 25 with a partition wall 27 is formed therein, and the electric fuel pump 13 and the fuel filter 14 are housed in the main chamber 25. At this time, in the fuel filter 14, an inlet pipe 28 at one longitudinal end thereof is connected to the fuel inlet 20, and an outlet pipe 29 at the other longitudinal end is opened to the vapor separation chamber 26. Further, in the electric fuel pump 13, the suction pipe 30 and the vapor discharge pipe 31 at one end in the longitudinal direction are opened to the vapor separation chamber 26, and the discharge pipe 32 at the other end in the longitudinal direction is communicated with the inlet hole 33 of the rollover shutoff valve 16. .
【００２８】横転遮断弁１６の出口孔３４は，噴射燃料
通路３５を介して前記燃料出口２１に連通され，上記噴
射燃料通路３５の途中に，燃料出口２１から横転遮断弁
１６側への燃料の逆流を阻止する逆止弁３６が設けられ
る。The outlet hole 34 of the rollover shutoff valve 16 is communicated with the fuel outlet 21 via an injection fuel passage 35, and the fuel from the fuel outlet 21 to the rollover shutoff valve 16 side is provided in the middle of the injected fuel passage 35. A check valve 36 is provided to prevent backflow.
【００２９】上記逆止弁３６より下流の噴射燃料通路３
５からは，前記燃料戻し口２２に至る調圧通路４０が分
岐しており，この調圧通路４０に燃料圧力レギュレータ
１５が介装される。この燃料圧力レギュレータ１５は，
調圧通路４０の途中に形成されて，その下流側に向いた
弁座４２と，この弁座４２に着座可能に対置される弁体
４３と，この弁体４３を所定のセット荷重をもって弁座
４２側に付勢する調圧ばね４４とを備え，電動燃料ポン
プ１３の吐出圧力が規定値以上になると，弁体４３が弁
座４２から離座して余剰圧力を燃料戻し口２２へ解放す
るようになっている。The injected fuel passage 3 downstream of the check valve 36.
A pressure regulating passage 40 is branched from 5 to the fuel return port 22, and a fuel pressure regulator 15 is interposed in the pressure regulating passage 40. This fuel pressure regulator 15
A valve seat 42 that is formed in the middle of the pressure regulating passage 40 and faces the downstream side, a valve body 43 that is opposed to the valve seat 42 so that it can be seated, and the valve body 43 is seated with a predetermined set load. When the discharge pressure of the electric fuel pump 13 exceeds a specified value, the valve body 43 separates from the valve seat 42 and releases excess pressure to the fuel return port 22. It is like this.
【００３０】この燃料圧力レギュレータ１５より下流の
調圧通路４０の内側面に，前記ベーパ分離室２６の天井
壁を貫通するベーパ排出孔４５が開口し，調圧通路４０
を余剰燃料が高速で通過することにより生じるエジェク
タ効果によりベーパ排出孔４５に負圧を与えるようにな
っている。A vapor discharge hole 45 penetrating the ceiling wall of the vapor separation chamber 26 is opened on the inner surface of the pressure regulating passage 40 downstream of the fuel pressure regulator 15, and the pressure regulating passage 40 is formed.
A negative pressure is applied to the vapor discharge hole 45 by the ejector effect generated by the surplus fuel passing through at high speed.
【００３１】再び図１において，エアクリーナ７の前面
には電子制御ユニット４７が配設される。この電子制御
ユニット４７は，入力されるエンジン回転数Ｎｅ，エン
ジン温度（例えば潤滑油温）Ｔｅ，スロットルバルブ１
０の開度Ｔｈ，クランク位置Ｃｐ等の信号に基づいて燃
料噴射弁Ｉ，電動燃料ポンプ１３及び点火コイル（図示
しない）等の作動を制御する。Referring again to FIG. 1, an electronic control unit 47 is provided on the front surface of the air cleaner 7. The electronic control unit 47 includes an input engine speed Ne, an engine temperature (for example, lubricating oil temperature) Te, and a throttle valve 1
The operations of the fuel injection valve I, the electric fuel pump 13, the ignition coil (not shown) and the like are controlled based on signals such as the opening Th of 0 and the crank position Cp.
【００３２】而して，エンジンＥの運転中，燃料タンク
Ｔ内の燃料は，燃料供給管２３を下って燃料ポンプモジ
ュールＭｐの燃料入口２０に達し，そして燃料フィルタ
１４に濾過されてベーパ分離室２６に一旦流入する。こ
のように，燃料入口２０への燃料供給は重力によるの
で，若し燃料供給管２３内でベーパが発生すうと，その
ベーパは，自然に燃料タンクＴ側へ浮上していく。 ベ
ーパ分離室２６に流入した燃料は，電動燃料ポンプ１３
の作動により入口管２８から吸入されて吐出管３２へと
圧送され，そして横転遮断弁１６及び逆止弁３６を経
て，燃料出口から燃料噴射弁Ｉへと供給され，該弁Ｉか
ら吸気ポート４へ噴射される。Thus, during operation of the engine E, the fuel in the fuel tank T goes down the fuel supply pipe 23 to the fuel inlet 20 of the fuel pump module Mp, and is filtered by the fuel filter 14 to be separated into the vapor separation chamber. It once flows into 26. As described above, since the fuel is supplied to the fuel inlet 20 by gravity, if vapor is generated in the fuel supply pipe 23, the vapor naturally floats to the fuel tank T side. The fuel that has flowed into the vapor separation chamber 26 is the electric fuel pump 13
Is sucked in from the inlet pipe 28, is pressure-fed to the discharge pipe 32, and is supplied from the fuel outlet to the fuel injection valve I through the rollover shutoff valve 16 and the check valve 36. Is injected into.
【００３３】この間に，燃料フィルタ１４及び電動燃料
ポンプ１３内で発生したベーパはベーパ分離室２６に排
出されるが，該室２６では燃料とベーパの分離が行われ
るので，ベーパは浮上してベーパ排出孔４５から，燃料
圧力レギュレータ１５より下流の調圧通路４０に出る。During this period, the vapor generated in the fuel filter 14 and the electric fuel pump 13 is discharged into the vapor separation chamber 26. Since the vapor and the fuel are separated in the chamber 26, the vapor is floated and vaporized. From the discharge hole 45, the fuel pressure regulator 15 comes out to the pressure adjusting passage 40 downstream.
【００３４】ところで，調圧通路４０では，前述のよう
に燃料圧力レギュレータ１５を開弁させた余剰燃料が高
速で通過し，そのエジェクタ効果によりベーパ排出孔４
５に負圧を与えるので，ベーパ分離室２６から調圧通路
４０へのベーパの排出を効果的に促進され，これに伴な
いベーパ分離室２６でのベーパ分離作用も促進されるこ
とになる。こうして燃料フィルタ１４及び電動燃料ポン
プ１３からベーパが排除されると，燃料噴射弁Ｉには，
ベーパを含まない良好な状態の燃料を供給することがで
き，常にエンジンＥの安定した運転状態を確保すること
ができる。By the way, in the pressure regulating passage 40, the surplus fuel obtained by opening the fuel pressure regulator 15 as described above passes at a high speed, and the ejector effect thereof causes the vapor discharge hole 4
Since a negative pressure is applied to 5, the discharge of vapor from the vapor separation chamber 26 to the pressure regulating passage 40 is effectively promoted, and the vapor separation action in the vapor separation chamber 26 is also promoted accordingly. When vapor is removed from the fuel filter 14 and the electric fuel pump 13 in this way, the fuel injection valve I
It is possible to supply the fuel in a good state that does not contain vapor, and to always ensure a stable operating state of the engine E.
【００３５】調圧通路４０を通過した燃料及びベーパ
は，燃料戻し口２２から燃料戻し管２４を経て，燃料タ
ンクＴ内の気相部に放出されるので，その気相部におい
てベーパは燃料から分離することができる。The fuel and vapor that have passed through the pressure regulating passage 40 are discharged from the fuel return port 22 through the fuel return pipe 24 to the gas phase portion in the fuel tank T, so that the vapor is removed from the fuel in the gas phase portion. Can be separated.
【００３６】次に，図６により前記横転遮断弁１６につ
いて説明する。Next, the rollover shutoff valve 16 will be described with reference to FIG.
【００３７】横転遮断弁１６は，図６（Ｎ）に示すよう
に，自動二輪車Ｍの正立状態で斜め左方上向きの姿勢を
とる円筒状の第１弁室５５と，それとは反対に斜め右方
上向きの姿勢をとる円筒状の第２弁室５６とを備え，第
１弁室５５の上端が第２弁室５６の中間部に接続され
る。第１及び第２弁室５５，５６の各上部には第１及び
第２弁座５５ａ，５６ａがそれぞれ形成され，第１弁座
５５ａの下部に前記前記入口孔３３が開口し，第２弁座
５６ａの上部に前記出口孔３４が開口する。第１及び第
２弁室５６の各下端は，球状の栓体５９，６０により閉
塞される。第１及び第２弁室５５，５６には，第１及び
第２弁座５５ａ，５６ａにそれぞれ着座し得る球状の弁
体５８，５９が収容される。第１及び第２弁室５５，５
６の各下端は，栓体５９，６０により閉塞される。As shown in FIG. 6 (N), the rollover shutoff valve 16 has a cylindrical first valve chamber 55 that takes an obliquely leftward and upward posture in the upright state of the motorcycle M, and an obliquely opposite one. The second valve chamber 56 having a cylindrical shape that is oriented rightward and upward is provided, and the upper end of the first valve chamber 55 is connected to the intermediate portion of the second valve chamber 56. First and second valve seats 55a and 56a are formed in the upper portions of the first and second valve chambers 55 and 56, respectively, and the inlet hole 33 is opened in the lower portion of the first valve seat 55a, so that the second valve The outlet hole 34 opens at the top of the seat 56a. The lower ends of the first and second valve chambers 56 are closed by spherical plugs 59 and 60. The first and second valve chambers 55 and 56 accommodate spherical valve bodies 58 and 59 that can be seated on the first and second valve seats 55a and 56a, respectively. First and second valve chambers 55, 5
Each lower end of 6 is closed by plugs 59 and 60.
【００３８】而して，自動二輪車Ｍの正立状態では，図
６（Ｎ）に示すように，第１及び第２弁体５８，５９が
自重で第１及び第２弁座５５ａ，５６ａから離れて栓体
５９，６０上に留まっている。したがって，入口孔３３
及び出口孔３４間が導通され，電動燃料ポンプ１３から
燃料噴射弁Ｉへの燃料供給を許す。Thus, in the upright state of the motorcycle M, as shown in FIG. 6 (N), the first and second valve bodies 58 and 59 are moved by their own weight from the first and second valve seats 55a and 56a. It is separated and remains on the stoppers 59 and 60. Therefore, the inlet hole 33
The electric discharge between the electric fuel pump 13 and the fuel injection valve I is allowed by connecting between the electric outlet and the outlet hole 34.
【００３９】しかしながら，万一，自動二輪車Ｍが左方
又は右方に横転した場合には，図６（Ｌ）又は（Ｒ）に
示すように，第１弁室５５又は第２弁室５６が略水平に
横転するのに伴ない第１弁体５７又は第２弁体５８がそ
の慣性力により第１弁座５５ａ又は第２弁座５６ａに着
座して，何れの場合も入口孔３３及び出口孔３４間を遮
断する。こうして第１弁体５７又は第２弁体５８が第１
弁座５５ａ又は第２弁座５６ａに一旦着座すると，その
着座状態は，入口孔３３側の燃料圧力により保持され
る。したがって，自動二輪車Ｍの横転により燃料噴射弁
Ｉ側に損傷があっても燃料出口２１からの燃料噴出を未
然に防ぐことができる。However, should the motorcycle M roll over to the left or the right, the first valve chamber 55 or the second valve chamber 56 should be closed as shown in FIG. 6 (L) or (R). The first valve body 57 or the second valve body 58 is seated on the first valve seat 55a or the second valve seat 56a by its inertial force as it rolls over substantially horizontally, and in either case, the inlet hole 33 and the outlet are provided. The holes 34 are cut off from each other. Thus, the first valve body 57 or the second valve body 58 is the first
Once seated on the valve seat 55a or the second valve seat 56a, the seated state is maintained by the fuel pressure on the inlet hole 33 side. Therefore, even if the motorcycle M rolls over and the fuel injection valve I side is damaged, the fuel injection from the fuel outlet 21 can be prevented.
【００４０】上記のような燃料ポンプモジュールＭｐを
具体化したものを図２〜図５に示す。A concrete embodiment of the fuel pump module Mp as described above is shown in FIGS.
【００４１】図２及び図３において，モジュールケース
１２は，主室２５を形成したケース本体１２ａと，この
ケース本体１２ａに，ベーパ分離室２６を形成したケー
スカバー１２ｂを隔壁２７を挟んで接合して，横断面が
略扇形をなすように構成される。その際，ケース本体１
２ａ，隔壁２７及びケースカバー１２ｂの各接合面間に
はシール部材４８，４８が介装される。そして円筒形の
電動燃料ポンプは，主室２５においてその扇形の中心部
に配置される。また円弧状に形成された燃料フィルタ１
４は主室２５においてその扇形の円弧部に沿って配置さ
れる。こうして電動燃料ポンプ１３及び燃料フィルタ１
４は，主室２５においてそれらの長手方向軸線が互いに
平行となるように配置される。したがって，モジュール
ケース１２の全長を大幅に短縮することができ，その横
断面形状を略扇形にしたことゝ相俟って，燃料ポンプモ
ジュールＭｐのコンパクト化を図ることができる。2 and 3, the module case 12 is formed by joining a case body 12a having a main chamber 25 and a case cover 12b having a vapor separation chamber 26 to the case body 12a with a partition wall 27 interposed therebetween. Thus, the cross section is configured to have a substantially fan shape. At that time, the case body 1
Sealing members 48, 48 are interposed between the joint surfaces of the 2a, the partition wall 27 and the case cover 12b. The cylindrical electric fuel pump is arranged in the main chamber 25 at the center of its fan shape. Further, the fuel filter 1 formed in an arc shape
4 is arranged in the main chamber 25 along the arcuate portion of the sector. Thus, the electric fuel pump 13 and the fuel filter 1
4 are arranged in the main chamber 25 such that their longitudinal axes are parallel to each other. Therefore, the overall length of the module case 12 can be greatly shortened, and the fuel pump module Mp can be made compact due to the fact that the cross-sectional shape thereof is substantially fan-shaped.
【００４２】図２及び図３に明示するように，ケース本
体１２ａには，その円弧状部外側に，長手方向に並ぶ一
対の取り付けボス４９，４９が形成されており，これら
ボス４９，４９がスロットルボディ６の一側壁にボルト
５０，５０により固着される。その際，モジュールケー
ス１２は，その長手方向軸線Ｘがスロットルボディ６の
吸気道５の軸線Ｙに対して直角をなすように配置され
る。こうした配置により，燃料ポンプモジュールＭｐの
全長の短縮化と相俟って，エンジンＥの吸気系のコンパ
クト化をもたらすことができる。As clearly shown in FIGS. 2 and 3, a pair of mounting bosses 49, 49 arranged in the longitudinal direction are formed on the outside of the arcuate portion of the case body 12a. It is fixed to one side wall of the throttle body 6 with bolts 50, 50. At this time, the module case 12 is arranged such that its longitudinal axis X is perpendicular to the axis Y of the intake passage 5 of the throttle body 6. With such an arrangement, the intake system of the engine E can be made compact in combination with the reduction of the total length of the fuel pump module Mp.
【００４３】またケース本体１２ａの側壁には，後側に
燃料入口２０，前側に燃料出口２１が設けられる。特
に，燃料入口２０は，ケース本体１２ａの前壁に一体に
形成されて燃料噴射弁Ｉの頭部に嵌合されるキャップ５
１に設けられ，燃料噴射弁Ｉの燃料導入口に直接連通す
るようになっているので，燃料出口２１及び燃料噴射弁
Ｉ間には配管を施す必要がなくなり，燃料配管の簡素化
に寄与し得る。A fuel inlet 20 is provided on the rear side and a fuel outlet 21 is provided on the front side on the side wall of the case body 12a. Particularly, the fuel inlet 20 is formed integrally with the front wall of the case body 12a and is fitted to the head of the fuel injection valve I.
1 is provided so as to directly communicate with the fuel introduction port of the fuel injection valve I, it is not necessary to provide piping between the fuel outlet 21 and the fuel injection valve I, which contributes to simplification of the fuel piping. obtain.
【００４４】さらにケース本体１２ａには横転遮断弁１
６が組み込まれる。Further, the rollover shutoff valve 1 is provided on the case body 12a.
6 is incorporated.
【００４５】一方，ケースカバー１２ｂには燃料圧力レ
ギュレータ１５が組み込まれ，その後壁に燃料戻し口２
２が設けられる。On the other hand, a fuel pressure regulator 15 is incorporated in the case cover 12b, and the fuel return port 2 is provided on the rear wall thereof.
Two are provided.
【００４６】上記のように，燃料入口２０及び燃料戻し
口２２がモジュールケース１２の後壁に設けられると，
これらに接続される燃料供給管２３及び燃料戻し管２４
を自動二輪車Ｍの比較的中心部に配管することが可能と
なり，他物との干渉を回避する上で有効である。As described above, when the fuel inlet 20 and the fuel return port 22 are provided on the rear wall of the module case 12,
Fuel supply pipe 23 and fuel return pipe 24 connected to these
Can be installed in a relatively central portion of the motorcycle M, which is effective in avoiding interference with other objects.
【００４７】その他の構成は，図５の全体概要図に示す
ものと同様であり，図２〜図５中，図５のものと対応す
る部分には，同一の参照符号が付してある。Other configurations are similar to those shown in the overall schematic view of FIG. 5, and in FIGS. 2 to 5, parts corresponding to those of FIG. 5 are designated by the same reference numerals.
【００４８】次に，図７に示す本発明の第２実施例につ
いて説明する。Next, a second embodiment of the present invention shown in FIG. 7 will be described.
【００４９】この第２実施例では，モジュールケース１
２の燃料入口２０にストレーナ６１が装着される。その
燃料入口２０に主室２５を連通させて，燃料タンクＴか
らの燃料を主室２５に満たし，その燃料中に電動燃料ポ
ンプ１１３及び燃料フィルタ１１４が浸漬される。これ
ら電動燃料ポンプ１１３及び燃料フィルタ１１４は，前
実施例と同様に長手方向軸線を互いに平行にして主室２
５に配置される。電動燃料ポンプ１１３は吸入管３０を
主室かに開口させて，主室２５の燃料を吸入し，吐出管
３２を介して燃料フィルタ１１４に圧送する。したがっ
て，この第２実施例における燃料フィルタ１１４は高圧
型とする必要がある。この燃料フィルタ１１４で濾過さ
れた高圧燃料は，出口管２９を通して横転遮断弁１６に
送られ，以後は前実施例と同様の経路を経て燃料噴射弁
ＩからエンジンＥの吸気ポート８に噴射される。In the second embodiment, the module case 1
A strainer 61 is attached to the second fuel inlet 20. The main chamber 25 is connected to the fuel inlet 20 to fill the main chamber 25 with fuel from the fuel tank T, and the electric fuel pump 113 and the fuel filter 114 are immersed in the fuel. The electric fuel pump 113 and the fuel filter 114 have their longitudinal axes parallel to each other as in the previous embodiment.
It is placed at 5. The electric fuel pump 113 opens the suction pipe 30 to the main chamber, sucks the fuel in the main chamber 25, and pressure-feeds it to the fuel filter 114 via the discharge pipe 32. Therefore, the fuel filter 114 in the second embodiment needs to be a high pressure type. The high-pressure fuel filtered by the fuel filter 114 is sent to the rollover shutoff valve 16 through the outlet pipe 29, and thereafter, is injected from the fuel injection valve I to the intake port 8 of the engine E through the same route as in the previous embodiment. .
【００５０】電動燃料ポンプ１１３は，通常のブラシ付
きモータを内蔵している。したがって，そのブラシ摺動
部は勿論，モータ全体が主室２５の燃料によって冷却さ
れる。その際，ブラシ摺動部で発生する摩耗粉が主室２
５に出て，燃料と共に電動燃料ポンプ１１３に吸入され
ることがあるが，その摩耗粉は電動燃料ポンプ１１３の
吐出側に配置される燃料フィルタ１１４により捕捉さ
れ，燃料噴射弁Ｉ側に流れることはない。The electric fuel pump 113 has a normal brushed motor built therein. Therefore, not only the brush sliding portion but also the entire motor is cooled by the fuel in the main chamber 25. At that time, the abrasion powder generated at the sliding portion of the brush is
5 and may be sucked into the electric fuel pump 113 together with the fuel, but the abrasion powder is captured by the fuel filter 114 arranged on the discharge side of the electric fuel pump 113 and flows to the fuel injection valve I side. There is no.
【００５１】主室２５の上部は，ベルト孔６２を介して
隣のベーパ分離室２６に連通しており，主室２５内で発
生したベーパが浮上してベーパ分離室２６に移行するよ
うになっている。また電動燃料ポンプ１１３のベーパ排
出管３１は前実施例と同様にベーパ分離室２６に開口し
ている。The upper portion of the main chamber 25 communicates with the adjacent vapor separation chamber 26 through the belt hole 62, and the vapor generated in the main chamber 25 floats and moves to the vapor separation chamber 26. ing. Further, the vapor discharge pipe 31 of the electric fuel pump 113 is opened to the vapor separation chamber 26 as in the previous embodiment.
【００５２】その他の構成は，前実施例と同様であり，
図７中，前実施例と対応する部分には同一の参照符号を
付して，その説明を省略する。The other structure is similar to that of the previous embodiment.
In FIG. 7, parts corresponding to those in the previous embodiment are designated by the same reference numerals, and description thereof will be omitted.
【００５３】本発明は，上記実施例に限定されるもので
はなく，その要旨の範囲を逸脱することなく種々の設計
変更が可能である。例えば，エンジンＥが多気筒の場合
には，スロットルボディ６を吸気マニホールドを介して
シリンダヘッド２に結合し，その吸気マニホールドに各
気筒に対応する燃料噴射弁を取り付けることもでき，ま
たその際，吸気マニホールドに燃料ポンプモジュールＭ
ｐを取り付けることもできる。The present invention is not limited to the above embodiments, and various design changes can be made without departing from the scope of the invention. For example, when the engine E is a multi-cylinder engine, the throttle body 6 may be connected to the cylinder head 2 via the intake manifold, and the fuel injection valve corresponding to each cylinder may be attached to the intake manifold. Fuel pump module M on intake manifold
p can also be attached.
【００５４】[0054]
【発明の効果】以上のように本発明の第１の特徴によれ
ば，燃料タンクから燃料を受け入れる燃料入口，エンジ
ンの燃料噴射弁に燃料を供給する燃料出口及び，余剰燃
料を燃料タンクに還流させる燃料戻し口を外側に開口す
るモジュールケースに，燃料入口及び燃料出口間を接続
する流路に直列に介裝される電動燃料ポンプ及び燃料フ
ィルタと，燃料出口及び燃料戻し口間を接続する調圧通
路に介裝される燃料圧力レギュレータとを収容した，車
両の燃料ポンプモジュールにおいて，前記電動燃料ポン
プ及び前記燃料フィルタを，それらの長手方向軸線が互
いに平行となるように配置し，これら電動燃料ポンプ及
び燃料フィルタで発生したベーパを含む燃料を受容し
て，その燃料から分離したベーパを前記燃料戻し口に送
るベーパ分離室を，該電動燃料ポンプ及び燃料フィルタ
の長手方向一端に隣接して前記モジュールケース内に設
けたので，モジュールケースの全長を大幅に短縮して，
燃料ポンプモジュールのコンパクト化を図ることができ
る。また燃料フィルタ及び電動燃料ポンプ内で発生した
ベーパはベーパ分離室で燃料と分離され，燃料戻し口に
送られるので，燃料噴射弁には，ベーパを含まない良好
な状態の燃料を供給することができ，常にエンジンの安
定した運転状態を確保することができる。As described above, according to the first feature of the present invention, the fuel inlet for receiving the fuel from the fuel tank, the fuel outlet for supplying the fuel to the fuel injection valve of the engine, and the surplus fuel recirculating to the fuel tank. In the module case with the fuel return port opened to the outside, the electric fuel pump and the fuel filter connected in series with the flow path connecting the fuel inlet and the fuel outlet, and the adjustment connecting the fuel outlet and the fuel return port are connected. In a fuel pump module for a vehicle, which accommodates a fuel pressure regulator interposed in a pressure passage, the electric fuel pump and the fuel filter are arranged such that their longitudinal axes are parallel to each other. A vapor separation chamber that receives fuel containing vapor generated by the pump and the fuel filter and sends vapor separated from the fuel to the fuel return port; Since adjacent to one longitudinal end of the electric fuel pump and the fuel filter is provided in the module case, the total length of the module case greatly reduced,
The fuel pump module can be made compact. Further, since the vapor generated in the fuel filter and the electric fuel pump is separated from the fuel in the vapor separation chamber and sent to the fuel return port, it is possible to supply the fuel in good condition without the vapor to the fuel injection valve. Therefore, it is possible to always ensure a stable engine operating condition.
【００５５】また本発明の第２の特徴によれば，第１の
特徴に加えて，前記ベーパ分離室上部のベーパ排出孔
を，前記燃料圧力レギュレータより下流の前記調圧通路
に開口させて，該調圧通路を余剰燃料が通過することに
より生じるエジェクタ効果により前記ベーパ排出孔に負
圧を与えるようにしたので，ベーパ分離室から調圧通路
へのベーパの排出を効果的に促進することができるのみ
ならず，ベーパ分離室でのベーパ分離作用をも促進する
ことができる。According to the second feature of the present invention, in addition to the first feature, the vapor discharge hole in the upper part of the vapor separation chamber is opened in the pressure regulating passage downstream of the fuel pressure regulator, Since the negative pressure is applied to the vapor discharge hole by the ejector effect generated by the excess fuel passing through the pressure regulating passage, it is possible to effectively promote the discharge of vapor from the vapor separation chamber to the pressure regulating passage. Not only can this be done, but the vapor separation action in the vapor separation chamber can be promoted.
【００５６】さらに本発明の第３の特徴によれば，第１
又は第２の特徴に加えて，前記燃料フィルタを，前記燃
料入口及び前記電動燃料ポンプ間の流路に介裝したの
で，電動燃料ポンプは，ブラシレス型モータの内蔵を可
能にし，また燃料フィルタは安価な低圧型の採用を可能
にする。Further, according to the third feature of the present invention, the first
Alternatively, in addition to the second feature, since the fuel filter is provided in the flow path between the fuel inlet and the electric fuel pump, the electric fuel pump enables a brushless motor to be built therein, and the fuel filter is Enables the use of inexpensive low-voltage types.
【００５７】さらにまた本発明の第４の特徴によれば，
第１又は第２の特徴に加えて，前記モジュールケース内
を前記燃料入口に連通して燃料を満たし，その燃料中に
前記電動燃料ポンプを浸漬し，この電動燃料ポンプ及び
前記燃料出口間の流路に前記燃料フィルタを介裝したの
で，電動燃料ポンプの内蔵するモータを通常のブラシ付
きとしても，そのブラシ摺動部を燃料により効果的に冷
却することができ，しかもブラシ摺動部で発生する摩耗
粉を燃料フィルタにより捕捉して，燃料噴射弁側への流
出を阻止することができる。Furthermore, according to the fourth feature of the present invention,
In addition to the first or second feature, the module case is communicated with the fuel inlet to fill the fuel, the electric fuel pump is immersed in the fuel, and the flow between the electric fuel pump and the fuel outlet is increased. Since the fuel filter is provided in the passage, even if the motor incorporated in the electric fuel pump has a normal brush, the brush sliding portion can be effectively cooled by the fuel, and the brush sliding portion is generated. It is possible to prevent the abrasion powder generated by the fuel filter from flowing out to the fuel injection valve side.
【００５８】さらにまた本発明の第５の特徴によれば，
第１〜第４の特徴の何れかに加えて，前記モジュールケ
ースを，エンジンの吸気管の一側に隣接させて，これら
モジュールケース及び吸気管の長手方向軸線が互いに略
直角をなすように配置したので，燃料ポンプモジュール
の全長の短縮化と相俟って，エンジンの吸気系のコンパ
クト化をもたらすことができる。Furthermore, according to the fifth feature of the present invention,
In addition to any one of the first to fourth characteristics, the module case is arranged adjacent to one side of an intake pipe of an engine so that the longitudinal axes of the module case and the intake pipe are substantially perpendicular to each other. Therefore, in combination with the reduction in the total length of the fuel pump module, the intake system of the engine can be made compact.
【図１】本発明の第１実施例に係る燃料ポンプモジュー
ルを備えた自動二輪車の要部側面図FIG. 1 is a side view of a main part of a motorcycle equipped with a fuel pump module according to a first embodiment of the present invention.
【図２】図１の２部の拡大縦断側面図FIG. 2 is an enlarged vertical side view of part 2 in FIG.
【図３】図２の３−３線断面図3 is a sectional view taken along line 3-3 of FIG.
【図４】図３の４−４線断面図FIG. 4 is a sectional view taken along line 4-4 of FIG.
【図５】上記燃料ポンプモジュールを含む，自動二輪車
の燃料供給系の全体概要図FIG. 5 is an overall schematic diagram of a fuel supply system of a motorcycle including the fuel pump module.
【図６】横転遮断弁の構成及び作用説明図FIG. 6 is an explanatory view of the configuration and operation of a rollover shutoff valve.
【図７】本発明の第２実施例に係る燃料ポンプモジュー
ルを備えた自動二輪車の燃料供給系の全体概要図FIG. 7 is an overall schematic diagram of a fuel supply system of a motorcycle including a fuel pump module according to a second embodiment of the present invention.
Ｅ・・・・・エンジン
Ｉ・・・・・燃料噴射弁
Ｍ・・・・・車両（自動二輪車）
Ｐｍ・・・・燃料ポンプモジュール
Ｔ・・・・・燃料タンク
Ｘ・・・・・燃料ポンプモジュールの長手方向軸線
Ｙ・・・・・吸気管（スロットルボディ）の長手方向軸
線
６・・・・・吸気管（スロットルボディ）
１２・・・・モジュールケース
１３・・・・電動燃料ポンプ（ブラシレスモータ内蔵）
１１３・・・電動燃料ポンプ（ブラシ付きモータ内蔵）
１４・・・・燃料フィルタ（低圧型）
１１４・・・燃料フィルタ（高圧型）
１５・・・・燃料圧力レギュレータ
２０・・・・燃料入口
２１・・・・燃料出口
２２・・・・燃料戻し口
２６・・・・ベーパ分離室
４０・・・・調圧通路
４５・・・・ベーパ排出孔E ... Engine I ... Fuel injection valve M ... Vehicle (motorcycle) Pm ... Fuel pump module T ... Fuel tank X ... Fuel Longitudinal axis Y of pump module Y ... Longitudinal axis of intake pipe (throttle body) 6 ... Intake pipe (throttle body) 12 ... Module case 13 ... Electric fuel pump ( Brushless motor built-in 113 ... Electric fuel pump (built-in brushed motor) 14 ... Fuel filter (low pressure type) 114 ... Fuel filter (high pressure type) 15 ... Fuel pressure regulator 20 ... Fuel inlet 21 Fuel outlet 22 Fuel return port 26 Vapor separation chamber 40 Pressure adjusting passage 45 Vapor discharge hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中川 光雄 埼玉県和光市中央１丁目４番１号 株式会 社本田技術研究所内 (72)発明者 谷澤 新一郎 埼玉県和光市中央１丁目４番１号 株式会 社本田技術研究所内 (72)発明者 引地 東一郎 埼玉県和光市中央１丁目４番１号 株式会 社本田技術研究所内 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Mitsuo Nakagawa 1-4-1 Chuo Stock Market, Wako City, Saitama Prefecture Inside Honda Research Laboratory (72) Inventor Shinichiro Tanizawa 1-4-1 Chuo Stock Market, Wako City, Saitama Prefecture Inside Honda Research Laboratory (72) Inventor Toichiro Hikiji 1-4-1 Chuo Stock Market, Wako City, Saitama Prefecture Inside Honda Research Laboratory
Claims (5)
燃料入口（２０），エンジン（Ｅ）の燃料噴射弁（Ｉ）
に燃料を供給する燃料出口（２１）及び，余剰燃料を燃
料タンク（Ｔ）に還流させる燃料戻し口（２２）を外側
に開口するモジュールケース（１２）に，燃料入口（２
０）及び燃料出口（２１）間を接続する流路に直列に介
裝される電動燃料ポンプ（１３，１１３）及び燃料フィ
ルタ（１４，１１４）と，燃料出口（２１）及び燃料戻
し口（２２）間を接続する調圧通路に介裝される燃料圧
力レギュレータ（１５）とを収容した，車両の燃料ポン
プモジュールにおいて，前記電動燃料ポンプ（１３，１
１３）及び前記燃料フィルタ（１４，１１４）を，それ
らの長手方向軸線が互いに平行となるように配置し，こ
れら電動燃料ポンプ（１３，１１３）及び燃料フィルタ
（１４，１１４）で発生したベーパを含む燃料を受容し
て，その燃料から分離したベーパを前記燃料戻し口（２
２）に送るベーパ分離室（２６）を，該電動燃料ポンプ
（１３，１１３）及び燃料フィルタ（１４，１１４）の
長手方向一端に隣接して前記モジュールケース（１２）
内に設けたことを特徴とする，車両の燃料ポンプモジュ
ール。1. A fuel inlet (20) for receiving fuel from a fuel tank (T) and a fuel injection valve (I) for an engine (E).
A fuel outlet (21) for supplying fuel to the fuel tank (T) and a fuel return port (22) for returning excess fuel to the fuel tank (T) are opened to the outside of the module case (12).
0) and the fuel outlet (21), the electric fuel pump (13, 113) and the fuel filter (14, 114) which are connected in series to the flow path connecting the fuel outlet (21) and the fuel return port (22). In a fuel pump module of a vehicle, the electric fuel pump (13, 1) containing a fuel pressure regulator (15) interposed in a pressure regulating passage connecting the electric fuel pump (13, 1).
13) and the fuel filter (14, 114) are arranged such that their longitudinal axes are parallel to each other, and the vapor generated in the electric fuel pump (13, 113) and the fuel filter (14, 114) is removed. The fuel containing the fuel is received and the vapor separated from the fuel is returned to the fuel return port (2
The vapor separation chamber (26) to be sent to 2) is adjacent to the longitudinal ends of the electric fuel pump (13, 113) and the fuel filter (14, 114) and the module case (12).
A fuel pump module for a vehicle, which is provided inside.
ールにおいて，前記ベーパ分離室（２６）上部のベーパ
排出孔（４５）を，前記燃料圧力レギュレータ（１５）
より下流の前記調圧通路（４０）に開口させて，該調圧
通路（４０）を余剰燃料が通過することにより生じるエ
ジェクタ効果により前記ベーパ排出孔（４５）に負圧を
与えるようにしたことを特徴とする，車両の燃料ポンプ
モジュール。2. The fuel pump module for a vehicle according to claim 1, wherein a vapor discharge hole (45) in an upper portion of the vapor separation chamber (26) is connected to the fuel pressure regulator (15).
The pressure adjusting passage (40) is opened further downstream so that a negative pressure is applied to the vapor discharge hole (45) by an ejector effect generated by excess fuel passing through the pressure adjusting passage (40). Vehicle fuel pump module characterized by:
モジュールにおいて，前記燃料フィルタ（１４）を，前
記燃料入口（２０）及び前記電動燃料ポンプ（１３）間
の流路に介裝したことを特徴とする，車両の燃料ポンプ
モジュール。3. The vehicle fuel pump module according to claim 1 or 2, wherein the fuel filter (14) is provided in a flow path between the fuel inlet (20) and the electric fuel pump (13). Vehicle fuel pump module characterized by:
モジュールにおいて，前記モジュールケース（１２）内
を前記燃料入口（２０）に連通して燃料を満たし，その
燃料中に前記電動燃料ポンプ（１１３）を浸漬し，この
電動燃料ポンプ（１１３）及び前記燃料出口（２１）間
の流路に前記燃料フィルタ（１１４）を介裝したことを
特徴とする，車両の燃料ポンプモジュール。4. The fuel pump module for a vehicle according to claim 1, wherein the module case (12) communicates with the fuel inlet (20) to fill the fuel, and the electric fuel pump ( A fuel pump module for a vehicle, characterized in that the fuel filter (114) is inserted in a flow path between the electric fuel pump (113) and the fuel outlet (21).
料ポンプモジュールにおいて，前記モジュールケース
（１２）を，エンジン（Ｅ）の吸気管（６）の一側に隣
接させて，これらモジュールケース（１２）及び吸気管
（６）の長手方向軸線（Ｘ，Ｙ）が互いに略直角をなす
ように配置したことを特徴とする，車両の燃料ポンプモ
ジュール。5. The fuel pump module for a vehicle according to any one of claims 1 to 4, wherein the module case (12) is adjacent to one side of an intake pipe (6) of an engine (E). A fuel pump module for a vehicle, characterized in that the module case (12) and the intake pipe (6) are arranged such that their longitudinal axes (X, Y) are substantially perpendicular to each other.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002054278A JP3980906B2 (en) | 2002-02-28 | 2002-02-28 | Vehicle fuel pump module |
| EP20030002227 EP1340905B1 (en) | 2002-02-28 | 2003-01-31 | Fuel pump module for vehicle |
| ES03002227T ES2420910T3 (en) | 2002-02-28 | 2003-01-31 | Fuel pump module for vehicle |
| BR0300393A BR0300393B1 (en) | 2002-02-28 | 2003-02-19 | fuel pump module for vehicle. |
| TW92103502A TW589437B (en) | 2002-02-28 | 2003-02-20 | Fuel pump module for vehicle |
| CNB031062008A CN100520047C (en) | 2002-02-28 | 2003-02-21 | Fuel pump assembly of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002054278A JP3980906B2 (en) | 2002-02-28 | 2002-02-28 | Vehicle fuel pump module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003254187A true JP2003254187A (en) | 2003-09-10 |
| JP3980906B2 JP3980906B2 (en) | 2007-09-26 |
Family
ID=27678566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002054278A Expired - Fee Related JP3980906B2 (en) | 2002-02-28 | 2002-02-28 | Vehicle fuel pump module |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1340905B1 (en) |
| JP (1) | JP3980906B2 (en) |
| CN (1) | CN100520047C (en) |
| BR (1) | BR0300393B1 (en) |
| ES (1) | ES2420910T3 (en) |
| TW (1) | TW589437B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163615A (en) * | 2003-12-02 | 2005-06-23 | Honda Motor Co Ltd | Relief type pressure regulator |
| JP2008045488A (en) * | 2006-08-16 | 2008-02-28 | Honda Motor Co Ltd | Fuel supply device for general purpose internal combustion engine |
| JP2010052625A (en) * | 2008-08-29 | 2010-03-11 | Honda Motor Co Ltd | Motorcycle |
| KR100999624B1 (en) * | 2008-09-04 | 2010-12-08 | 현대자동차주식회사 | High-pressure fuel supply circuit |
| WO2012144483A1 (en) * | 2011-04-21 | 2012-10-26 | 株式会社ケーヒン | Fuel supply device for engine |
| WO2013108720A1 (en) * | 2012-01-19 | 2013-07-25 | 株式会社ミクニ | Fuel supply device for internal combustion engine |
| WO2013108721A1 (en) * | 2012-01-19 | 2013-07-25 | 株式会社ミクニ | Fuel injection device for internal combustion engine |
| JP2016156382A (en) * | 2016-04-26 | 2016-09-01 | 株式会社デンソー | Fuel rail and fuel injection device using the same |
| JP2019019694A (en) * | 2017-07-12 | 2019-02-07 | 株式会社ケーヒン | Fuel pump |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI312029B (en) | 2005-06-23 | 2009-07-11 | Honda Motor Co Ltd | Fuel feed system of engine |
| WO2008016916A2 (en) | 2006-08-01 | 2008-02-07 | Pcrc Products | Small engine operation components |
| JP4888114B2 (en) * | 2006-12-28 | 2012-02-29 | スズキ株式会社 | Motorcycle fuel supply system |
| DE102007020677A1 (en) | 2007-05-03 | 2008-11-06 | Robert Bosch Gmbh | Fuel conveying module comprises an outlet connected to an inlet via a pressure regulating valve so that fuel flows back into the inlet from the outlet |
| JP4864827B2 (en) * | 2007-07-18 | 2012-02-01 | 愛三工業株式会社 | Fuel supply device |
| CN103573499A (en) * | 2013-10-25 | 2014-02-12 | 安徽工贸职业技术学院 | Fuel pump for automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4893647A (en) * | 1986-11-07 | 1990-01-16 | Walbro Corporation | In-tank fuel reservoir with reservoir fuel level control |
| US5103793A (en) * | 1991-01-15 | 1992-04-14 | Brunswick Corporation | Vapor separator for an internal combustion engine |
| JP3994613B2 (en) * | 2000-03-01 | 2007-10-24 | 株式会社ケーヒン | Fuel supply device in fuel injection device |
-
2002
- 2002-02-28 JP JP2002054278A patent/JP3980906B2/en not_active Expired - Fee Related
-
2003
- 2003-01-31 ES ES03002227T patent/ES2420910T3/en not_active Expired - Lifetime
- 2003-01-31 EP EP20030002227 patent/EP1340905B1/en not_active Expired - Fee Related
- 2003-02-19 BR BR0300393A patent/BR0300393B1/en not_active IP Right Cessation
- 2003-02-20 TW TW92103502A patent/TW589437B/en not_active IP Right Cessation
- 2003-02-21 CN CNB031062008A patent/CN100520047C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163615A (en) * | 2003-12-02 | 2005-06-23 | Honda Motor Co Ltd | Relief type pressure regulator |
| JP2008045488A (en) * | 2006-08-16 | 2008-02-28 | Honda Motor Co Ltd | Fuel supply device for general purpose internal combustion engine |
| JP2010052625A (en) * | 2008-08-29 | 2010-03-11 | Honda Motor Co Ltd | Motorcycle |
| KR100999624B1 (en) * | 2008-09-04 | 2010-12-08 | 현대자동차주식회사 | High-pressure fuel supply circuit |
| WO2012144483A1 (en) * | 2011-04-21 | 2012-10-26 | 株式会社ケーヒン | Fuel supply device for engine |
| US9695791B2 (en) | 2011-04-21 | 2017-07-04 | Keihin Corporation | Fuel supply device for engine |
| WO2013108721A1 (en) * | 2012-01-19 | 2013-07-25 | 株式会社ミクニ | Fuel injection device for internal combustion engine |
| JP2013148003A (en) * | 2012-01-19 | 2013-08-01 | Mikuni Corp | Fuel injection device for internal combustion engine |
| JP2013148002A (en) * | 2012-01-19 | 2013-08-01 | Mikuni Corp | Fuel supply device for internal combustion engine |
| WO2013108720A1 (en) * | 2012-01-19 | 2013-07-25 | 株式会社ミクニ | Fuel supply device for internal combustion engine |
| JP2016156382A (en) * | 2016-04-26 | 2016-09-01 | 株式会社デンソー | Fuel rail and fuel injection device using the same |
| JP2019019694A (en) * | 2017-07-12 | 2019-02-07 | 株式会社ケーヒン | Fuel pump |
| JP7002870B2 (en) | 2017-07-12 | 2022-01-20 | 日立Astemo株式会社 | Fuel pump |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2420910T3 (en) | 2013-08-27 |
| TW200304985A (en) | 2003-10-16 |
| EP1340905A3 (en) | 2006-02-15 |
| EP1340905B1 (en) | 2013-07-03 |
| CN1441160A (en) | 2003-09-10 |
| BR0300393A (en) | 2004-08-17 |
| EP1340905A2 (en) | 2003-09-03 |
| BR0300393B1 (en) | 2012-04-03 |
| JP3980906B2 (en) | 2007-09-26 |
| TW589437B (en) | 2004-06-01 |
| CN100520047C (en) | 2009-07-29 |
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