WO2007123037A1 - Fuel supply module - Google Patents

Fuel supply module Download PDF

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Publication number
WO2007123037A1
WO2007123037A1 PCT/JP2007/057983 JP2007057983W WO2007123037A1 WO 2007123037 A1 WO2007123037 A1 WO 2007123037A1 JP 2007057983 W JP2007057983 W JP 2007057983W WO 2007123037 A1 WO2007123037 A1 WO 2007123037A1
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WO
WIPO (PCT)
Prior art keywords
fuel
base member
mounting base
electric pump
terminal
Prior art date
Application number
PCT/JP2007/057983
Other languages
French (fr)
Japanese (ja)
Inventor
Junichi Shimokawa
Motohiro Mishima
Original Assignee
Keihin Corporation
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 Corporation filed Critical Keihin Corporation
Priority to BRPI0711024-3A priority Critical patent/BRPI0711024B1/en
Priority to CN2007800090720A priority patent/CN101400883B/en
Publication of WO2007123037A1 publication Critical patent/WO2007123037A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus 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
    • F02M37/04Feeding by means of driven pumps
    • F02M37/08Feeding by means of driven pumps electrically driven
    • F02M37/10Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • F02M37/103Mounting pumps on fuel tanks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/027Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/26Filters with built-in pumps filters provided with a pump mounted in or on the casing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus 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
    • F02M37/22Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/50Filters arranged in or on fuel tanks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D33/00Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge

Landscapes

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

Abstract

A fuel supply module (M) where a coupler (48) for holding an outer terminal (49) is integrally projected from the upper surface of an installation base member (2) and where an inner terminal (52) and an electricity supply terminal (47) are electrically connected via a lead wire (50). The inner terminal (52) continues to the outer terminal (49) and projects from the lower surface of the installation base member (2). The electricity supply terminal (47) projects from the upper surface (18a) of an electric pump (Ep). A connection tube (29) is integrally formed with the installation base member (2), and a fuel discharge tube (30) of the electric pump (Ep) is fitted from below into the connection tube (29) so as to communicate with a fuel take-out tube (12). The inner terminal (52) is placed radially outside of the electric pump (Ep). A regulator valve (R) is attached to the installation base member (2), between the inner terminal (52) and the connection tube (29). The construction above enables the installation base member and the electric pump to be arranged close to each other, making the fuel supply module compact.

Description

明 細 書  Specification
燃料供給モジュール  Fuel supply module
技術分野  Technical field
[0001] 本発明は,主としてエンジンの燃料噴射弁に燃料を供給する燃料供給モジュール に関し,特に,燃料タンクの天井壁に取り付けられて上面に燃料取り出し管を突出さ せる取り付けベース部材と,この取り付けベース部材に支持されて燃料タンク内に収 容され,燃料タンク内の燃料を汲み上げて前記燃料取り出し管に送る電動ポンプと, 電動ポンプの吐出燃料の一部を燃料タンク内に還流させてその吐出圧力を調整す るレギユレータ弁とを備え,取り付けベース部材の上面には外側端子を保持するカブ ラを一体に突設し,前記外側端子に連なって取り付けベース部材の下面に突出する 内側端子と,電動ポンプの上面に突設される給電端子とをリード線を介して相互に接 続してなる,燃料供給モジュールの改良に関する。  TECHNICAL FIELD [0001] The present invention relates to a fuel supply module that mainly supplies fuel to a fuel injection valve of an engine, and in particular, a mounting base member that is attached to a ceiling wall of a fuel tank and projects a fuel take-out pipe on the upper surface, and the attachment An electric pump that is supported by the base member and stored in the fuel tank, pumps the fuel in the fuel tank and sends it to the fuel take-out pipe, and part of the discharged fuel from the electric pump is returned to the fuel tank and discharged. A regulator valve for adjusting the pressure, and a cover for holding the outer terminal is integrally provided on the upper surface of the mounting base member, and an inner terminal protruding from the lower surface of the mounting base member is connected to the outer terminal. The present invention relates to an improvement in a fuel supply module in which a power supply terminal protruding from the upper surface of an electric pump is connected to each other via a lead wire.
背景技術  Background art
[0002] 力ゝ る燃料供給モジュールは,特許文献 1に開示されるように既に知られている。  A powerful fuel supply module is already known as disclosed in Patent Document 1.
特許文献 1 :日本特開平 7— 77122号公報  Patent Document 1: Japanese Unexamined Patent Publication No. 7-77122
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0003] 従来のか ^る燃料供給モジュールでは,取り付けベースの下面に突設される内側 端子が,電動ポンプの上面に突設される給電端子の略直上に配置されるので,両端 子間には,リード線を接続するための作業空間を上下方向に取る必要があり,またレ ギユレータ弁が,取り付けベース部材の下方に延びて電動ポンプの燃料吐出管に連 なる縦方向の燃料通路の一側に設置されるので,その設置のために縦方向の燃料 通路は長く形成する必要があり,これらによって,取り付けベース部材及び電動ボン プ相互の近接配置が妨げられ,これが燃料供給モジュールのコンパクトィ匕を図る上 で障害となる。 [0003] In the conventional fuel supply module, the inner terminal protruding from the lower surface of the mounting base is arranged almost directly above the power supply terminal protruding from the upper surface of the electric pump. The working space for connecting the lead wires must be taken up and down, and the regulator valve extends under the mounting base member and is connected to the side of the vertical fuel passage connected to the fuel discharge pipe of the electric pump. Therefore, it is necessary to form a long vertical fuel passage for the installation, which prevents the mounting base member and the electric pump from being close to each other. It becomes an obstacle to plan.
[0004] 本発明は,力 Aる事情に鑑みてなされたもので,取り付けベース部材及び電動ボン プ相互の近接配置を可能にして,コンパクトな前記燃料供給モジュールを提供するこ とを目的とする。 [0004] The present invention has been made in view of the situation of force A, and allows the mounting base member and the electric pump to be disposed close to each other, thereby providing the compact fuel supply module. aimed to.
課題を解決するための手段  Means for solving the problem
[0005] 上記目的を達成するために,本発明は,燃料タンクの天井壁に取り付けられて上面 に燃料取り出し管を突出させる取り付けベース部材と,この取り付けベース部材に支 持されて燃料タンク内に収容され,燃料タンク内の燃料を汲み上げて前記燃料取り 出し管に送る電動ポンプと,電動ポンプの吐出燃料の一部を燃料タンク内に還流さ せてその吐出圧力を調整するレギユレータ弁とを備え,取り付けベース部材の上面に は外側端子を保持する力ブラを一体に突設し,前記外側端子に連なって取り付けべ 一ス部材の下面に突出する内側端子と,電動ポンプの上面に突設される給電端子と をリード線を介して相互に接続してなる,燃料供給モジュールにおいて,取り付けべ 一ス部材に,電動ポンプの燃料吐出管を下方力ゝら嵌合されて該燃料吐出管を前記 燃料取り出し管に連通する連結筒を一体に形成する一方,前記内側端子を電動ポ ンプの半径方向外側方に配置し,この内側端子と前記連結筒との間で前記レギユレ 一タ弁を取り付けベース部材に取り付けると共に,このレギユレータ弁の弁孔と前記 燃料取り出し管との間を接続する調圧通路を取り付けベース部材に形成したことを第 1の特徴とする。  In order to achieve the above object, the present invention provides a mounting base member that is attached to a ceiling wall of a fuel tank and projects a fuel take-out pipe on the upper surface, and is supported by the mounting base member in the fuel tank. An electric pump that pumps up the fuel in the fuel tank and sends it to the fuel take-off pipe; and a regulator valve that adjusts the discharge pressure by returning a part of the fuel discharged from the electric pump to the fuel tank. , A force bra for holding the outer terminal is integrally projected on the upper surface of the mounting base member, and an inner terminal protruding from the lower surface of the mounting base member is connected to the outer terminal, and is projected on the upper surface of the electric pump. In the fuel supply module, which is connected to each other via a lead wire, the fuel discharge pipe of the electric pump is fitted to the mounting base member with a downward force. The fuel discharge pipe is integrally formed with a connecting cylinder that communicates with the fuel take-out pipe, while the inner terminal is disposed radially outward of the electric pump, and the legule is connected between the inner terminal and the connecting cylinder. The first feature is that the control valve is attached to the attachment base member, and a pressure adjusting passage for connecting the valve hole of the regulator valve and the fuel take-out pipe is formed in the attachment base member.
[0006] また本発明は,第 1の特徴に加えて,電動ポンプの上端面に突設される前記燃料 吐出管及び前記給電端子を,該電動ポンプの軸線を挟んでその両側に配置すると 共に,その給電端子の直上に前記レギユレ一タ弁を配置したことを第 2の特徴とする  [0006] In addition to the first feature, the present invention provides the fuel discharge pipe and the power supply terminal protruding from the upper end surface of the electric pump on both sides of the axis of the electric pump. The second feature is that the regulator valve is disposed immediately above the power supply terminal.
[0007] さらに本発明は,第 2の特徴に加えて,前記レギユレータ弁を,その少なくとも一部 が前記取り付けベース部材の上面よりも上方にくるように配置したことを第 3の特徴と する。 [0007] Further, in addition to the second feature, the present invention has a third feature that the regulator valve is arranged such that at least a part thereof is located above the upper surface of the mounting base member.
[0008] さらにまた本発明は,第 1〜第 3の何れかに加えて,前記燃料取り出し管及び前記 力ブラを,それらの開口部を互いに正反対の外側方へ向かせながら取り付けベース 部材の平面視でそれの同一直径線上に配置する一方,前記取り付けベース部材の 下面に形成されて前記レギユレ一タ弁を嵌合保持する保持孔と,同じく前記取り付け ベース部材の下面に形成されて前記内側端子を囲繞する案内筒と,前記連結筒とを ,それらの軸線が互 、に平行するように配置したことを第 4の特徴とする。 Furthermore, in addition to any one of the first to third aspects of the present invention, the fuel take-out pipe and the force bra are mounted on the plane of the mounting base member with their openings directed outwardly opposite each other. A holding hole formed on the lower surface of the mounting base member for fitting and holding the leg regulator valve, and also formed on the lower surface of the mounting base member while being arranged on the same diameter line as viewed. A guide tube that surrounds the connecting tube and the connecting tube Therefore, the fourth feature is that the axes are arranged parallel to each other.
発明の効果  The invention's effect
[0009] 本発明の第 1の特徴によれば,取り付けベース部材の内側端子を電動ポンプの半 径方向外側方に配置したことで,内側端子及び給電端子間に上下方向のリード線接 続用作業スペースを設けずとも,内側端子及び給電端子へのリード線の接続を行う ことができる。し力も取り付けベース部材においては,電動ポンプの半径方向外側方 に配置される内側端子と,電動ポンプの燃料吐出管と連結する連結筒との間にでき る広いスペースをレギユレータ弁の設置に利用するので,スペース効率が向上し,こ のレギユレ一タ弁も電動ポンプの取り付けベース部材への近接配置を妨げな 、。これ らによって取り付けベース部材及び電動ポンプ相互の近接配置を可能にすると共に ,燃料供給モジュールのコンパクトィ匕を図ることができる。  [0009] According to the first feature of the present invention, the inner terminal of the mounting base member is arranged on the outer side in the radial direction of the electric pump, so that the lead wire can be connected in the vertical direction between the inner terminal and the power feeding terminal. Lead wires can be connected to the inner terminal and the power supply terminal without providing a work space. In the base member, the wide space formed between the inner terminal arranged radially outward of the electric pump and the connecting cylinder connected to the fuel discharge pipe of the electric pump is used for installing the regulator valve. As a result, space efficiency is improved and this Regulator valve does not hinder the proximity of the electric pump to the mounting base member. As a result, the mounting base member and the electric pump can be arranged close to each other, and the fuel supply module can be made compact.
[0010] 本発明の第 2の特徴によれば,燃料吐出管,前記給電端子及びレギユレータ弁の 三者を電動ポンプの上方に合理的に集中配置することができて,燃料供給モジユー ルのコンパクトィ匕を効果的に図ることができる。  [0010] According to the second feature of the present invention, the fuel discharge pipe, the power feeding terminal, and the regulator valve can be reasonably centrally arranged above the electric pump, so that the fuel supply module is compact. Can be effectively achieved.
[0011] し力もレギユレ一タ弁カも排出される燃料は,給電端子周りに落下することになるか ら,給電端子の周囲は,レギユレータ弁からの排出燃料により始終洗われ,給電端子 周りに燃料が滞留することがなく,したがって滞留燃料中に含まれる水分による給電 端子の腐蝕を未然に防ぐことができる。  [0011] Since the fuel discharged from both the force and the regulator valve falls around the power supply terminal, the periphery of the power supply terminal is washed all the time with the fuel discharged from the regulator valve and around the power supply terminal. As fuel does not stay, corrosion of the feed terminal due to moisture contained in the retained fuel can be prevented.
[0012] 本発明の第 3の特徴によれば,取り付けベース部材及び電動ポンプ相互の近接配 置に際して,レギユレータ弁による干渉をより確実に回避することができる。  [0012] According to the third feature of the present invention, when the mounting base member and the electric pump are arranged close to each other, interference by the regulator valve can be avoided more reliably.
[0013] 本発明の第 4の特徴によれば,燃料取り出し管,力ブラ,レギユレータ弁の保持孔, 内側端子の案内筒及び燃料吐出管との連結筒を備える取り付けベース部材を,比 較的少なく成形型により成形することができる。  [0013] According to the fourth aspect of the present invention, the mounting base member including the fuel take-out pipe, the force bra, the holding hole of the regulator valve, the guide pipe of the inner terminal, and the connecting pipe to the fuel discharge pipe is compared. It can be molded with a small mold.
図面の簡単な説明  Brief Description of Drawings
[0014] [図 1]図 1は本発明の実施例に係る燃料供給モジュールの斜視図である。(第 1実施 例)  FIG. 1 is a perspective view of a fuel supply module according to an embodiment of the present invention. (First example)
[図 2]図 2は同燃料供給モジュールを燃料タンクへの取り付け状態で示す縦断面図 である。(第 1実施例) [図 3]図 3は図 2の 3矢視図である。(第 1実施例) FIG. 2 is a longitudinal sectional view showing the fuel supply module attached to a fuel tank. (First example) [FIG. 3] FIG. 3 is a view taken in the direction of arrow 3 in FIG. (First example)
[図 4]図 4は前記燃料供給モジュールにおける取り付けベース部材用成形型の縦断 面図である。 (第 1実施例)  [FIG. 4] FIG. 4 is a longitudinal sectional view of a molding die for a mounting base member in the fuel supply module. (First example)
[図 5]図 5は図 4の 5— 5線断面図である。(第 1実施例)  FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. (First example)
符号の説明  Explanation of symbols
Ερ· ···電動ポンプ  Ερ ···· Electric pump
Μ·· ···燃料供給モジュール  燃料 ... Fuel supply module
R-- ···レギユレータ弁  R --... Regulator valve
Τ·· • · '燃料タンク  •••• 'Fuel tank
1·· …天井壁  1 ... Ceiling wall
2" ···取り付けベース部材  2 "··· Mounting base
12· ···燃料取り出し管  ...
29· ···連結筒  29 ... Connecting cylinder
30· ···燃料吐出管  30 .... Fuel discharge pipe
35· ···調圧路  35 ... Pressure adjustment path
37· ···弁孔  37 ... Valve hole
43· …保持孔  43 ··· Holding hole
47· ···給電端子  47 ... Power supply terminal
48· ···力プラ  48 ...
49· ···外側端子  49 ··· Outer terminal
50· …リード線  50 ··· Lead wire
52· ···内側端子  52 ... Inside terminal
53· ···案内筒  53 .... Guide tube
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0016] 本発明の実施の形態を,添付図面に示す本発明の好適な実施例に基づいて以下 に説明する。  Embodiments of the present invention will be described below based on preferred embodiments of the present invention shown in the accompanying drawings.
実施例 1  Example 1
[0017] 先ず,図 1〜図 3において, 自動二輪車等の車両に搭載される燃料タンク Τの天井 壁 1には,燃料タンク T内の燃料をエンジンの燃料噴射弁 I〖こ供給する本発明の燃料 供給モジュール Mが取り付けられる。 [0017] First, in FIGS. 1 to 3, the ceiling of a fuel tank 搭載 mounted on a vehicle such as a motorcycle. On the wall 1, the fuel supply module M of the present invention for supplying the fuel in the fuel tank T to the fuel injection valve I of the engine is attached.
[0018] 燃料供給モジュール Mは,取り付けベース部材 2と,この取り付けベース部材 2の直 下に,軸方向を上下に向けて配置される電動ポンプ Epと,取り付けベース部材 2に 一体に形成される上部ポンプホルダ 3Aと,この上部ポンプホルダ 3Aに着脱可能に 結合されると共に,この取り付けベース部材 2と協働して電動ポンプ Epを収容,保持 する下部ポンプホルダ 3Bと,電動ポンプ Epの下端に取り付けられる燃料ストレーナ 4 とを備えている。 [0018] The fuel supply module M is formed integrally with the mounting base member 2, the electric pump Ep disposed directly below the mounting base member 2, and the axial direction thereof vertically, and the mounting base member 2. The upper pump holder 3A is detachably coupled to the upper pump holder 3A, and the lower pump holder 3B that accommodates and holds the electric pump Ep in cooperation with the mounting base member 2 and the lower end of the electric pump Ep. And an attached fuel strainer 4.
[0019] 燃料タンク Tの天井壁 1には,その内部に電動ポンプ Epを挿入するための開口部 5 が設けられると共に,この開口部 5を囲繞する取り付けリング 6が固設される。この取り 付けリング 6には,その上面力も突出する複数本の取り付けボルト 7, 7…が固設され ている。  In the ceiling wall 1 of the fuel tank T, an opening 5 for inserting the electric pump Ep is provided, and an attachment ring 6 surrounding the opening 5 is fixed. This mounting ring 6 is fixed with a plurality of mounting bolts 7, 7.
[0020] 前記取り付けベース部材 2は,上記開口部 5を塞ぐように取り付けリング 6の上面に 重ねられる円板状のフランジ部 2aを有する。このフランジ部 2aには,その外周に沿つ て並ぶ複数のボルト孔 11, 11"'カ設けられ,これらボルト孔 11, 11· ··〖こ揷通される 複数の取り付けボルト 7, 7· ··と,これらに螺締される複数のナット 8, 8…とにより取り 付けベース部材 2は取り付けリング 6に固定される。その際,フランジ部 2aと燃料タン ク Tの天井壁 1との間には,開口部 5をシールする環状のシール部材 9が介装される  [0020] The mounting base member 2 has a disk-like flange portion 2a that is superimposed on the upper surface of the mounting ring 6 so as to close the opening 5. The flange portion 2a is provided with a plurality of bolt holes 11, 11 "arranged along the outer periphery thereof, and a plurality of mounting bolts 7, 11,. The mounting base member 2 is fixed to the mounting ring 6 by means of a plurality of nuts 8, 8... Screwed to them, and the flange 2 a and the ceiling wall 1 of the fuel tank T are connected to each other. An annular sealing member 9 that seals the opening 5 is interposed between them.
[0021] この取り付けベース部材 2は合成樹脂製であり,フランジ部 2aの上部には,燃料タ ンク T外で水平方向に突出する燃料取り出し管 12がー体に形成され,この燃料取り 出し管 12の外端部には,エンジンの燃料噴射弁 I〖こ連なる燃料供給導管 33が接続 されるようになつている。 [0021] The mounting base member 2 is made of a synthetic resin, and a fuel take-out pipe 12 protruding in the horizontal direction outside the fuel tank T is formed on the upper portion of the flange portion 2a. The outer end of 12 is connected to a fuel supply pipe 33 connected to the fuel injection valve I of the engine.
[0022] またフランジ部 2aの下面には上部ポンプホルダ 3Aがー体に形成される。この上部 ポンプホルダ 3Aは,燃料タンク T内に突出して電動ポンプ Epの上半部外周面に嵌 合するよう円筒状をなしており,この上部ポンプホルダ 3Aには,下端を開放した丁字 状の係止溝 13Fが周方向等間隔置きに複数設けられる。  [0022] An upper pump holder 3A is formed on the lower surface of the flange portion 2a. The upper pump holder 3A has a cylindrical shape that protrudes into the fuel tank T and fits into the outer peripheral surface of the upper half of the electric pump Ep. The upper pump holder 3A has a letter-like shape with the lower end open. A plurality of locking grooves 13F are provided at equal intervals in the circumferential direction.
[0023] 一方,下部ポンプホルダ 3Bは,電動ポンプ Epの下半部を収容,保持するよう,合 成榭脂により円筒状に成形される。その際,その上端力 突出する T字状の係止爪 1 3Mが複数一体に形成される。そしてこれら係止爪 13Mを前記係止溝 13Fに係合す ることにより,上部ポンプホルダ 3Aに下部ポンプホルダ 3Bが結合される。こうして電 動ポンプ Epは上部ポンプホルダ 3A及び下部ポンプホルダ 3B間に収容保持される。 [0023] On the other hand, the lower pump holder 3B is adapted to accommodate and hold the lower half of the electric pump Ep. It is formed into a cylindrical shape by synthetic resin. At that time, multiple T-shaped locking claws 13M projecting from the upper end force are formed in one piece. The lower pump holder 3B is coupled to the upper pump holder 3A by engaging these locking claws 13M with the locking grooves 13F. Thus, the electric pump Ep is accommodated and held between the upper pump holder 3A and the lower pump holder 3B.
[0024] 図 2に明示するように,電動ポンプ Epは,ロータ 20を鉛直方向に向けた電動モータ Eと,この電動モータ Eにより駆動される燃料ポンプ Pとからなっている。電動モータ E は,内周面に周方向に並ぶ複数の磁石 17aを固設した円筒状のステータ 17と,この ステータ 17の上端にカシメ結合される上部軸受ブラケット 18と, 同下端部に結合され る下部軸受ブラケット 19と,上部及び下部軸受ブラケット 18, 19によりロータ軸 20a が支承されるロータ 20とから構成される。  As clearly shown in FIG. 2, the electric pump Ep is composed of an electric motor E with the rotor 20 directed in the vertical direction and a fuel pump P driven by the electric motor E. The electric motor E is coupled to a cylindrical stator 17 having a plurality of magnets 17a arranged in the circumferential direction on the inner peripheral surface, an upper bearing bracket 18 that is caulked to the upper end of the stator 17, and a lower end portion thereof. A lower bearing bracket 19 and a rotor 20 on which the rotor shaft 20a is supported by the upper and lower bearing brackets 18, 19.
[0025] 燃料ポンプ Pは,下部軸受ブラケット 19下面との間にポンプ室 22を画成すべく下部 軸受ブラケット 19と共にステータ 17にカシメ結合されるポンプケース 23と,ポンプ室 2 2に回転自在に収容されてロータ軸 20aの下端部に連結されるポンプインペラ 24とで ,ウェスコ型に構成される。  [0025] The fuel pump P is rotatably accommodated in the pump chamber 22 and a pump case 23 that is caulked to the stator 17 together with the lower bearing bracket 19 so as to define a pump chamber 22 between the lower surface of the lower bearing bracket 19 The pump impeller 24 connected to the lower end portion of the rotor shaft 20a is configured as a Wesco type.
[0026] ポンプケース 23には,ポンプ室 22に開口する吸入ポート 25が設けられ,この吸入 ポート 25に,燃料タンク T内の底部に配置される前記燃料ストレーナ 4が接続され,こ の燃料ストレーナ 4は,ポンプケース 23の下面に突設された支軸 26に取り付けられる 。また前記下部軸受ブラケット 19には,ポンプ室 22及びステータ 17内を連通する吐 出ポート 27が設けられる。  The pump case 23 is provided with a suction port 25 that opens into the pump chamber 22, and the fuel strainer 4 disposed at the bottom of the fuel tank T is connected to the suction port 25, and this fuel strainer 4 is attached to a support shaft 26 projecting from the lower surface of the pump case 23. The lower bearing bracket 19 is provided with a discharge port 27 that communicates with the pump chamber 22 and the stator 17.
[0027] 前記上部軸受ブラケット 18には,その上方に突出すると共に,ステータ 17内と連通 した最終吐出ポート 34を有する燃料吐出管 30がー体に形成され,その内部には最 終吐出ポート 34への燃料の逆流を阻止する逆止弁 31が設けられる。この燃料吐出 管 30は,取り付けベース部材 2の下面に一体に突設される連結筒 29の内周面にシ 一ル部材 32を介して下方力ゝら嵌合される。  [0027] The upper bearing bracket 18 is formed with a fuel discharge pipe 30 protruding upward and having a final discharge port 34 communicating with the inside of the stator 17, and inside the final discharge port 34. A check valve 31 is provided to prevent the backflow of fuel to the engine. The fuel discharge pipe 30 is fitted to the inner peripheral surface of the connecting cylinder 29 protruding integrally with the lower surface of the mounting base member 2 through a seal member 32 with a downward force.
[0028] 取り付けベース部材 2には,燃料取り出し管 12及び連結筒 29の内部を走って燃料 吐出管 30の内部に連通する一連の L字状の燃料通路 28と,この燃料通路 28の屈 曲部から分岐して下流端を燃料タンク T内に開放する調圧路 35とが形成される。そ の調圧路 35は,燃料取り出し管 12側の燃料通路 28の延長線上に形成される調圧 路上流部 35aと,この調圧路上流部 35aの下流端力 下方へ屈曲して下流端を燃料 タンク T内に開放する調圧路下流部 35bとで構成され,その調圧路下流部 35bに, 燃料通路 28内の圧力を,前記燃料噴射弁 Iからの燃料噴射に適した所定圧力に調 整するためのレギユレータ弁 Rが設けられる。 [0028] The mounting base member 2 includes a series of L-shaped fuel passages 28 that run inside the fuel take-out pipe 12 and the connecting cylinder 29 and communicate with the inside of the fuel discharge pipe 30, and the bending of the fuel passage 28. A pressure regulating path 35 is formed which branches from the section and opens the downstream end into the fuel tank T. The pressure regulating path 35 is a pressure regulating path formed on the extension line of the fuel passage 28 on the fuel take-out pipe 12 side. The upstream portion 35a of the passage and the downstream end portion 35b of the pressure adjusting passage upstream portion 35a are bent downward and the downstream end is opened into the fuel tank T. The downstream portion 35b of the pressure adjusting passage 35b In addition, a regulator valve R for adjusting the pressure in the fuel passage 28 to a predetermined pressure suitable for fuel injection from the fuel injection valve I is provided.
[0029] このレギユレータ弁 Rは,取り付けベース部材 2とは別個に形成された有底円筒状 の弁ハウジング 36を備えており,この弁ハウジング 36の端壁に,それを貫通する弁 孔 37と,この弁孔 37の内端に連なる円錐状の弁座 38とが形成される。弁ハウジング 36内の弁室 42には,弁座 38に着座し得るボール型の弁体 39と,この弁体 39を弁 座 38との着座方向に所定のセット荷重をもって付勢する調圧ばね 40と,この調圧ば ね 40の固定端を支持する環状のリテーナ 41とが収容され,このリテーナ 41は,弁室 42の内周面に圧入固定されると共に,弁室 42の開口部に係止される止環 46により 抜け止め保持される。 The regulator valve R includes a bottomed cylindrical valve housing 36 formed separately from the mounting base member 2, and a valve hole 37 penetrating through the end wall of the valve housing 36. Thus, a conical valve seat 38 connected to the inner end of the valve hole 37 is formed. In the valve chamber 42 in the valve housing 36, a ball-shaped valve body 39 that can be seated on the valve seat 38, and a pressure regulating spring that urges the valve body 39 in a seating direction with the valve seat 38 with a predetermined set load. 40 and an annular retainer 41 that supports the fixed end of the pressure adjusting screw 40 are accommodated. The retainer 41 is press-fitted and fixed to the inner peripheral surface of the valve chamber 42, and is fitted into the opening of the valve chamber 42. It is retained by the retaining ring 46 that is locked.
[0030] 弁ハウジング 36は,取り付けベース部材 2にその下面に開口するように設けられる 保持孔 43に,弁孔 37を上向きにして嵌合,固着され,その弁孔 37は,保持孔 43の 天井壁に設けられる通孔 44を介して前記調圧路上流部 35aと連通する。而して,上 記通孔 44,弁孔 37及び弁室 42が前記調圧路下流部 35bを構成することになる。  [0030] The valve housing 36 is fitted and fixed to the holding hole 43 provided in the mounting base member 2 so as to open on the lower surface thereof, with the valve hole 37 facing upward. It communicates with the pressure regulating path upstream portion 35a through a through hole 44 provided in the ceiling wall. Thus, the through hole 44, the valve hole 37, and the valve chamber 42 constitute the pressure regulating path downstream portion 35b.
[0031] さらに取り付けベース部材 2には,前記レギユレータ弁 Rより上流の調圧路 35から分 岐する袋状凹部 45が形成される。図示例では,袋状凹部 45は,前記調圧路上流部 35aの下流端側の延長線上に配置され,したがって,取り付けベース部材 2の成形 時,燃料取り出し管 12内の燃料通路 28,調圧路上流部 35a及び袋状凹部 45は,共 通 1本の中子で形成することができる。  [0031] Furthermore, the attachment base member 2 is formed with a bag-like recess 45 branched from the pressure regulating path 35 upstream of the regulator valve R. In the illustrated example, the bag-like recess 45 is disposed on the extension line on the downstream end side of the upstream side 35a of the pressure regulating path, and therefore, when the mounting base member 2 is molded, the fuel passage 28, pressure regulating in the fuel take-out pipe 12 is formed. The upstream portion 35a and the bag-like recess 45 can be formed by a single core.
[0032] 前記燃料吐出管 30は上部軸受ブラケット 18の上端面片側に配置され,他方の片 側には,電動モータ Eの給電端子 47が突設される。  [0032] The fuel discharge pipe 30 is disposed on one side of the upper end surface of the upper bearing bracket 18, and a power supply terminal 47 of the electric motor E projects from the other side.
[0033] 一方,取り付けベース部材 2の上面には,外側端子 49を保持する力ブラ 48がー体 に形成され,また取り付けベース部材 2の下面には,外側端子 49に連なる内側端子 52を突出させると共に,この内側端子 52を囲繞する円筒状の案内筒 53がー体に突 設される。前記給電端子 47及び内側端子 52には,リード線 50の両端に付設される コネクタ 50a, 50bがそれぞれ接続され,これによつて内側端子 52及び給電端子 47 は相互に電気的に接続される。 On the other hand, a force bra 48 for holding the outer terminal 49 is formed on the upper surface of the mounting base member 2, and the inner terminal 52 connected to the outer terminal 49 protrudes from the lower surface of the mounting base member 2. At the same time, a cylindrical guide cylinder 53 surrounding the inner terminal 52 is projected from the body. Connectors 50a and 50b attached to both ends of the lead wire 50 are connected to the power supply terminal 47 and the inner terminal 52, respectively, so that the inner terminal 52 and the power supply terminal 47 are connected. Are electrically connected to each other.
[0034] 以上の構成において,電動ポンプ Ep上面の燃料吐出管 30及び給電端子 47は, 電動ポンプ Epの軸線 Yを挟んでその両側に配置される。  In the above configuration, the fuel discharge pipe 30 and the power supply terminal 47 on the upper surface of the electric pump Ep are arranged on both sides of the axis Y of the electric pump Ep.
[0035] また取り付けベース部材 2下面の内側端子 52は,電動ポンプ Epの半径方向外側 方に配置され,この内側端子 52と,取り付けベース部材 2下面の連結筒 29との間の 給電端子 47の直上にレギユレータ弁 Rが配置される。  [0035] The inner terminal 52 on the lower surface of the mounting base member 2 is disposed radially outward of the electric pump Ep, and the power supply terminal 47 between the inner terminal 52 and the connecting cylinder 29 on the lower surface of the mounting base member 2 is provided. A regulator valve R is arranged immediately above.
[0036] さらにレギユレータ弁 Rは,その少なくとも一部が取り付けベース部材 2の上面よりも 上方にくるように配置される。  Furthermore, the regulator valve R is arranged so that at least a part thereof is located above the upper surface of the mounting base member 2.
[0037] さらにまた燃料取り出し管 12及び力ブラ 48は,それらの開口部を互いに正反対の 外側方を向力せながら取り付けベース部材 2の平面視でそれの同一直径線 X上に配 置される。また取り付けベース部材 2の下面に形成されてレギユレータ弁 Rを嵌合保 持する保持孔 43と,同じく取り付けベース部材 2の下面に形成されて内側端子 52を 囲繞する案内筒 53と,前記連結筒 29とは,それらの軸線が互いに平行するように配 置される。  [0037] Furthermore, the fuel take-out pipe 12 and the force bra 48 are arranged on the same diameter line X in the plan view of the mounting base member 2 with their openings directed outwardly opposite to each other. . Also, a holding hole 43 formed on the lower surface of the mounting base member 2 for fitting and holding the regulator valve R, a guide tube 53 formed on the lower surface of the mounting base member 2 and surrounding the inner terminal 52, and the connecting tube. 29 are arranged so that their axes are parallel to each other.
[0038] 給電端子 47の直上に配置されるレギユレータ弁 Rは,その弁室 42の開口端を給電 端子 47に向けるので,弁室 42から排出される燃料が,給電端子 47周りの電動ボン プ Ep上面に落下するようになっている。その落下した燃料を,燃料タンク T内に還流 させるために,前記上部ポンプホルダ 3Aの周壁に切欠き窓 51が設けられる。  [0038] The regulator valve R disposed immediately above the power supply terminal 47 directs the open end of the valve chamber 42 toward the power supply terminal 47, so that the fuel discharged from the valve chamber 42 is moved to the electric pump around the power supply terminal 47. It falls on the top surface of Ep. In order to recirculate the dropped fuel into the fuel tank T, a notch window 51 is provided on the peripheral wall of the upper pump holder 3A.
[0039] 次に,この実施例の作用について説明する。  Next, the operation of this embodiment will be described.
[0040] 電動ポンプ Epにおいて,電動モータ Eを作動すれば,そのロータ軸 20aによりポン ブインペラ 24が回転駆動される。これに伴 ヽ燃料タンク T内の燃料が燃料ストレーナ 4で濾過されながら吸入ポート 25からポンプ室 22に吸入され,ポンプインペラ 24によ り昇圧されて吐出ポート 27からステータ 17内へ圧送され,最終吐出ポート 34から燃 料吐出管 30及び燃料取り出し管 12,即ち燃料通路 28を経て燃料噴射弁 Iに供給さ れる。  [0040] When the electric motor E is operated in the electric pump Ep, the pump impeller 24 is rotationally driven by the rotor shaft 20a. Accordingly, the fuel in the fuel tank T is sucked into the pump chamber 22 from the suction port 25 while being filtered by the fuel strainer 4, pressurized by the pump impeller 24, and pumped into the stator 17 from the discharge port 27. The fuel is supplied from the discharge port 34 to the fuel injection valve I through the fuel discharge pipe 30 and the fuel take-out pipe 12, that is, the fuel passage 28.
[0041] その間,燃料通路 28の圧力,即ち電動ポンプ Epの吐出圧力は調圧路上流部 35a を経てレギユレータ弁 Rの弁体 39に作用するので,電動ポンプ Epの吐出圧力が所 定値を超えると,弁体 39が調圧ばね 40のセット荷重に抗して開弁し,燃料通路 28内 の燃料の一部を弁室 42側に排出し,燃料通路 28の圧力が所定値に戻ると,弁体 39 は調圧ばね 40のセット荷重により再び閉弁する。こうして燃料通路 28の圧力は所定 値に自動的に調整されるので,燃料噴射弁 Iからの燃料の噴射圧力が適正に制御さ れる。 [0041] In the meantime, the pressure in the fuel passage 28, that is, the discharge pressure of the electric pump Ep, acts on the valve body 39 of the regulator valve R via the upstream side 35a of the pressure adjusting path, so that the discharge pressure of the electric pump Ep exceeds a predetermined value. Then, the valve body 39 opens against the set load of the pressure regulating spring 40, and the fuel passage 28 When a part of the fuel is discharged to the valve chamber 42 side and the pressure in the fuel passage 28 returns to a predetermined value, the valve element 39 is closed again by the set load of the pressure regulating spring 40. Thus, the pressure in the fuel passage 28 is automatically adjusted to a predetermined value, so that the fuel injection pressure from the fuel injection valve I is properly controlled.
[0042] またレギユレータ弁 Rの弁室 42から排出される燃料は,給電端子 47周りの上部軸 受ブラケット 18の上面 18a,即ち電動ポンプ Epの上面に落下し,上部ポンプホルダ 3 Aの切欠き窓 51を通過して燃料タンク T内に還流する。したがって,給電端子 47の 周囲は,レギユレータ弁 R力もの排出燃料により始終洗われることになるので,給電端 子 47周りに燃料が滞留することがなく,滞留燃料中に含まれる水分による給電端子 4 7の腐蝕を未然に防ぐことができる。  [0042] The fuel discharged from the valve chamber 42 of the regulator valve R falls to the upper surface 18a of the upper bearing bracket 18 around the power supply terminal 47, that is, the upper surface of the electric pump Ep, and the notch of the upper pump holder 3A Passes through window 51 and returns to fuel tank T. Accordingly, since the periphery of the power supply terminal 47 is washed all the time with the discharged fuel of the regulator valve R force, the fuel does not stay around the power supply terminal 47, and the power supply terminal 4 due to moisture contained in the retained fuel 4 7 corrosion can be prevented in advance.
[0043] さらに上部軸受ブラケット 18の上面 18aに落下した燃料は,そこで運動エネルギを 減衰された後,上部ポンプホルダ 3Aの切欠き窓 51から,燃料タンク T内の貯留燃料 上に静かに流下することになるから,燃料の落下音を防ぐことができる。  [0043] Further, the fuel that has dropped onto the upper surface 18a of the upper bearing bracket 18 is kinetic energy attenuated there, and then gently flows down from the cutout window 51 of the upper pump holder 3A onto the stored fuel in the fuel tank T. As a result, the falling sound of the fuel can be prevented.
[0044] また電動ポンプ Epから燃料通路 28への燃料の吐出中に,その吐出圧力が脈動す ると,その脈動は,調圧路上流部 35a側に伝達するが,レギユレータ弁 Rに到達する 前に,レギユレータ弁 Rの手前力も分岐した袋状凹部 45へと伝達して,その内壁に衝 突することにより減衰される。その結果,電動ポンプ Epの吐出圧力の脈動に起因す るレギユレータ弁 Rの弁体 39の振動を防 、で,レギユレータ弁 Rの適正な調圧機能を 確保することができると共に,燃料噴射弁 Iの燃料噴射圧力の安定ィ匕を図ることがで きる。  [0044] If the discharge pressure pulsates during discharge of fuel from the electric pump Ep to the fuel passage 28, the pulsation is transmitted to the upstream side 35a of the pressure regulating path, but reaches the regulator valve R. Previously, the front force of the regulator valve R is also transmitted to the branched bag-like recess 45 and is attenuated by colliding with its inner wall. As a result, vibration of the valve body 39 of the regulator valve R due to the pulsation of the discharge pressure of the electric pump Ep can be prevented, so that an appropriate pressure regulating function of the regulator valve R can be secured and the fuel injection valve I It is possible to stabilize the fuel injection pressure.
[0045] また燃料噴射弁 Iの開閉によっても燃料通路 28に圧力の脈動が発生することがある 力 その脈動も上記と同様の作用により減衰することができ,さらにレギユレータ弁 R の開閉により燃料通路 28に圧力の脈動が発生することがあるが,その脈動も上記と 同様の作用により減衰することができる。  [0045] Pressure pulsation may occur in the fuel passage 28 even when the fuel injection valve I is opened and closed. The pulsation can also be attenuated by the same action as described above, and the fuel passage 28 can be damped by opening and closing the regulator valve R. Pressure pulsation may occur in Fig. 28, which can also be attenuated by the same action as above.
[0046] し力も燃料通路 28の圧力の脈動減衰を,レギユレータ弁 Rの手前力も袋状凹部 45 を分岐させるという,極めて簡単な減衰手段で達成するので,部品点数の増カロもなく ,燃料供給モジュール Mのコストアップを招かずに済む。  [0046] The damping force and the pulsation damping of the pressure in the fuel passage 28 are achieved by an extremely simple damping means in which the front force of the regulator valve R branches the bag-like recess 45, so there is no increase in the number of parts and fuel supply. There is no need to increase the cost of module M.
[0047] ところで,取り付けベース部材 2の内側端子 52は,電動ポンプ Epの半径方向外側 方に配置されるので,電動ポンプ Ep上面の給電端子 47にリード線 50の一端部のコ ネクタ 50aを接続した後,電動ポンプ Epを取り付けベース部材 2に近接して支持させ た後でも,電動ポンプ Epに邪魔されることなく,リード線 50の他端部のコネクタ 50bを 内側端子 52に接続することができる。したがって内側端子 52及び給電端子 47間に 上下方向のリード線接続用作業スペースを設ける必要はない。し力も取り付けベース 部材 2においては,電動ポンプ Epの半径方向外側方に配置される内側端子 52と, 電動ポンプ Epの燃料吐出管 30と連結する連結筒 29との間に広いスペースができる 力 この広いスペースをレギユレータ弁 Rの設置に利用するので,スペース効率が向 上し,このレギユレータ弁 Rも電動ポンプ Epの取り付けベース部材 2への近接配置を 妨げな、、。これらによって取り付けベース部材 2及び電動ポンプ Ep相互の近接配置 を可能にすると共に,燃料供給モジュールのコンパクトィ匕を図ることができる。 [0047] By the way, the inner terminal 52 of the mounting base member 2 is located radially outside the electric pump Ep. After connecting the connector 50a at one end of the lead wire 50 to the power supply terminal 47 on the top surface of the electric pump Ep, The connector 50b at the other end of the lead wire 50 can be connected to the inner terminal 52 without being obstructed by the pump Ep. Therefore, there is no need to provide a work space for connecting lead wires in the vertical direction between the inner terminal 52 and the power feeding terminal 47. In the mounting base member 2, the force that creates a large space between the inner terminal 52 arranged radially outward of the electric pump Ep and the connecting cylinder 29 connected to the fuel discharge pipe 30 of the electric pump Ep. Since a large space is used for the installation of the regulator valve R, space efficiency is improved, and this regulator valve R also does not disturb the proximity of the electric pump Ep to the mounting base member 2. As a result, the mounting base member 2 and the electric pump Ep can be arranged close to each other, and the fuel supply module can be made compact.
[0048] また電動ポンプ Epの燃料吐出管 30及び前記給電端子 47は,電動ポンプ Epの軸 線 Yを挟んでその両側に配置され,その給電端子 47の直上にレギユレータ弁 Rが配 置されることにより,燃料吐出管 30,給電端子 47及びレギユレータ弁 Rの三者を電動 ポンプ Epの上方に合理的に集中配置することができ,燃料供給モジュール Mのコン ノ クトイ匕を効果的に図ることができる。し力もレギユレ一タ弁カも排出される燃料は, 給電端子周りに落下することになるから,給電端子の周囲は,レギユレータ弁力 の 排出燃料により始終洗われ,給電端子周りに燃料が滞留することがなく,したがって 滞留燃料中に含まれる水分による給電端子の腐蝕を未然に防ぐことができる。  [0048] Further, the fuel discharge pipe 30 and the power supply terminal 47 of the electric pump Ep are arranged on both sides of the axis Y of the electric pump Ep, and the regulator valve R is arranged directly above the power supply terminal 47. Therefore, the fuel discharge pipe 30, power supply terminal 47, and regulator valve R can be rationally concentrated above the electric pump Ep, and the fuel supply module M can be effectively connected. Can do. The fuel discharged from both the clamping force and the regulator valve falls around the power supply terminal, so the area around the power supply terminal is washed all the time by the discharged fuel from the regulator valve force, and the fuel stays around the power supply terminal. Therefore, corrosion of the power supply terminal due to moisture contained in the staying fuel can be prevented.
[0049] さらにレギユレータ弁 Rは,その少なくとも一部が前記取り付けベース部材 2の上面 よりも上方にくるように配置されることで,レギユレータ弁 Rによる干渉をより確実に回 避しながら,取り付けベース部材 2及び電動ポンプ Ep相互の効果的な近接配置が可 能となり,燃料供給モジュール Mのコンパクトィ匕を更に図ることができる。  [0049] Further, the regulator valve R is arranged so that at least a part thereof is located above the upper surface of the mounting base member 2, so that interference with the regulator valve R can be avoided more reliably, and the mounting base can be prevented. This enables an effective close arrangement between the member 2 and the electric pump Ep, and the fuel supply module M can be further compacted.
[0050] 次に,図 4及び図 5により,合成樹脂製の取り付けベース部材 2の成形方法につい て説明する。  Next, a method for forming the synthetic resin mounting base member 2 will be described with reference to FIGS. 4 and 5. FIG.
[0051] 合成樹脂製の取り付けベース部材 2の成形に当たっては,左右一対の上型 60, 60 と,一つの下型 61とが用意される。左右の上型 60, 60間には,フランジ部 2aの上面 力もの突出部分,即ち燃料取り出し管 12,力ブラ 48等を成形する上部キヤビティ 62a と,それに連なるゲート 63とが形成されており,両上型 60, 60の開閉面 Pは,燃料取 り出し管 12及びカプラ 48の両軸線を通るように設定されている。両上型 60, 60間に は,燃料通路 28及び調圧路 35の水平部,並びに力ブラ 48の中空部を成形する中 子 64, 65が抜き差し可能に配設される。 [0051] In forming the mounting base member 2 made of synthetic resin, a pair of left and right upper molds 60, 60 and one lower mold 61 are prepared. Between the left and right upper molds 60, 60 is an upper cavity 62a that forms a protruding portion of the upper surface of the flange 2a, that is, a fuel take-out pipe 12, a force bra 48, etc. The upper and lower molds 60, 60 are set so that the open / close surface P of both upper molds 60, 60 passes through both axes of the fuel take-out pipe 12 and the coupler 48. Between the upper molds 60, 60, the cores 64, 65 for forming the horizontal portions of the fuel passage 28 and the pressure adjusting passage 35 and the hollow portion of the force bra 48 are detachable.
[0052] また上型 60, 60と下型 61との間には,フランジ部 2a及びその下方部分,即ちフラ ンジ部 2a,連結筒 29,案内筒 53等を成形する下部キヤビティ 62bが形成されている [0052] Further, between the upper molds 60, 60 and the lower mold 61, there is formed a flange part 2a and a lower part thereof, that is, a lower cavity 62b for molding the flange part 2a, the connecting cylinder 29, the guide cylinder 53 and the like. ing
[0053] 而して,取り付けベース部材 2の成形に際しては,先ず,下型 61の所定箇所に内 側端子 52を支持させてから,この下型 61に,左右上型 60, 60を閉じた状態で重ね ,次いで中子 64, 65をセットし,その一方の中子 65に外側端子 49を支持させる。次 に,ゲート 63からキヤビティ 62a, 62bに溶融状態の合成樹脂を射出,充填すれば, 取り付けベース部材 2を成形することができる。取り付けベース部材 2の固化後,中子 64, 65を引き出して左右の上型 60, 60を相互に開き,そして上型 60, 60及び下型 61間を開くことにより,これら成形型力 取り付けベース部材 2を取り出すことができる Thus, when forming the mounting base member 2, first, the inner terminal 52 is supported at a predetermined position of the lower mold 61, and then the left and right upper molds 60, 60 are closed to the lower mold 61. Then, the cores 64 and 65 are set, and the outer terminal 49 is supported by one of the cores 65. Next, the injection base member 2 can be formed by injecting and filling molten synthetic resin from the gate 63 into the cavities 62a and 62b. After the mounting base member 2 is solidified, the cores 64, 65 are pulled out, the left and right upper molds 60, 60 are opened to each other, and the upper mold 60, 60 and the lower mold 61 are opened. Member 2 can be removed
[0054] このように,左右の上型 60, 60,一つの下型 61と,極めて少ない成形型により取り 付けベース部材 2を成形できることは,前述のように,取り出し管 12及び力ブラ 48を, それらの開口部が互いに正反対の外側方を向くようにして取り付けベース部材 2の平 面視でそれの同一直径線 X上に配置し,また取り付けベース部材 2の下面に形成さ れる保持孔 43,案内筒 53及び燃料吐出管 30との連結筒 29を,それらの軸線が互 Vヽに平行するように配置した力 である。 [0054] As described above, the mounting base member 2 can be molded with the left and right upper molds 60, 60, one lower mold 61, and a very small number of molds. The mounting base member 2 is arranged on the same diameter line X in a plan view so that the openings face oppositely opposite to each other, and a holding hole formed on the lower surface of the mounting base member 2 43 Therefore, the guide cylinder 53 and the connecting cylinder 29 with the fuel discharge pipe 30 are arranged so that their axes are parallel to each other.
[0055] 本発明は上記実施例に限定されるものではなく,その要旨を逸脱しない範囲で種 々の設計変更が可能である。  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.

Claims

請求の範囲 The scope of the claims
[1] 燃料タンク (T)の天井壁(1)に取り付けられて上面に燃料取り出し管(12)を突出さ せる取り付けベース部材(2)と,この取り付けベース部材(2)に支持されて燃料タンク (T)内に収容され,燃料タンク (T)内の燃料を汲み上げて前記燃料取り出し管(12) に送る電動ポンプ (Ep)と,電動ポンプ (Ep)の吐出燃料の一部を燃料タンク (T)内 に還流させてその吐出圧力を調整するレギユレータ弁 (R)とを備え,取り付けベース 部材 (2)の上面には外側端子 (49)を保持する力ブラ (48)を一体に突設し,前記外 側端子 (49)に連なって取り付けベース部材 (2)の下面に突出する内側端子(52)と ,電動ポンプ (Ep)の上面(18a)に突設される給電端子 (47)とをリード線(50)を介し て相互に接続してなる,燃料供給モジュール (M)において,  [1] A mounting base member (2) attached to the ceiling wall (1) of the fuel tank (T) and projecting the fuel take-out pipe (12) on the upper surface, and a fuel supported by the mounting base member (2) An electric pump (Ep) that is housed in the tank (T), pumps up the fuel in the fuel tank (T) and sends it to the fuel take-out pipe (12), and a part of the fuel discharged from the electric pump (Ep) And a regulator valve (R) that recirculates inside (T) and adjusts the discharge pressure. A force bra (48) that holds the outer terminal (49) is integrally projected on the upper surface of the mounting base member (2). The inner terminal (52) projecting from the lower surface of the mounting base member (2) connected to the outer terminal (49) and the feeding terminal (47) projecting from the upper surface (18a) of the electric pump (Ep) Are connected to each other via a lead wire (50), in the fuel supply module (M),
取り付けベース部材 (2)に,電動ポンプ (Ep)の燃料吐出管(30)を下方力 嵌合さ れて該燃料吐出管(30)を前記燃料取り出し管(12)に連通する連結筒(29)を一体 に形成する一方,前記内側端子(52)を電動ポンプ (Ep)の半径方向外側方に配置 し,この内側端子(52)と前記連結筒(29)との間で前記レギユレータ弁 (R)を取り付 けベース部材(2)に取り付けると共に,このレギユレータ弁 (R)の弁孔(37)と前記燃 料取り出し管(12)との間を接続する調圧通路 (35)を取り付けベース部材 (2)に形 成したことを特徴とする,燃料供給モジュール。  The mounting base member (2) is connected to the fuel discharge pipe (30) of the electric pump (Ep) by a downward force so that the fuel discharge pipe (30) communicates with the fuel discharge pipe (12) (29). ) Are integrally formed, while the inner terminal (52) is arranged radially outward of the electric pump (Ep), and the regulator valve (29) is connected between the inner terminal (52) and the connecting cylinder (29). R) is attached to the base member (2), and a pressure adjusting passage (35) is connected to connect the valve hole (37) of the regulator valve (R) and the fuel take-out pipe (12). A fuel supply module, characterized in that it is formed on the base member (2).
[2] 請求項 1記載の燃料供給モジュールにお 、て,  [2] In the fuel supply module according to claim 1,
電動ポンプ (Ep)の上端面に突設される前記燃料吐出管(30)及び前記給電端子( 47)を,該電動ポンプ (Ep)の軸線 (Y)を挟んでその両側に配置すると共に,その給 電端子 (47)の直上に前記レギユレータ弁 (R)を配置したことを特徴とする,燃料供 給モジュール。  The fuel discharge pipe (30) and the power supply terminal (47) projecting from the upper end surface of the electric pump (Ep) are arranged on both sides of the axis (Y) of the electric pump (Ep), A fuel supply module, wherein the regulator valve (R) is arranged immediately above the power supply terminal (47).
[3] 請求項 2記載の燃料供給モジュールにお 、て,  [3] In the fuel supply module according to claim 2,
前記レギユレータ弁 (R)を,その少なくとも一部が取り付けベース部材(2)の上面よ りも上方にくるように配置したことを特徴とする燃料供給モジュール。  The fuel supply module, wherein the regulator valve (R) is arranged such that at least a part thereof is located above the upper surface of the mounting base member (2).
[4] 請求項 1〜3の何れかに記載の燃料供給モジュールにお 、て,  [4] In the fuel supply module according to any one of claims 1 to 3,
前記燃料取り出し管(12)及び前記力ブラ (48)を,それらの開口部を互いに正反 対の外側方へ向力せながら取り付けベース部材(2)の平面視でそれの同一直径線( X)上に配置する一方,取り付けベース部材(2)の下面に形成されて前記レギユレ一 タ弁 (R)を嵌合保持する保持孔 (43)と,同じく取り付けベース部材 (2)の下面に形 成されて前記内側端子(52)を囲繞する案内筒(53)と,前記連結筒(29)とを,それ らの軸線が互いに平行するように配置したことを特徴とする,燃料供給モジュール。 The fuel take-off pipe (12) and the force bra (48) have the same diameter line (2) in the plan view of the mounting base member (2) while their openings are directed outward of the opposite sides of each other. X) and a holding hole (43) formed on the bottom surface of the mounting base member (2) for fitting and holding the Regulator valve (R), and on the bottom surface of the mounting base member (2). A fuel supply module, characterized in that a guide cylinder (53) formed and surrounding the inner terminal (52) and the connecting cylinder (29) are arranged so that their axes are parallel to each other. .
PCT/JP2007/057983 2006-04-21 2007-04-11 Fuel supply module WO2007123037A1 (en)

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CN108368803A (en) * 2015-12-17 2018-08-03 株式会社电装 Fuel pump unit
US20180363607A1 (en) * 2015-12-17 2018-12-20 Denso Corporation Fuel pump unit
US11441522B2 (en) * 2015-12-17 2022-09-13 Denso Corporation Fuel pump unit

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CN101400883B (en) 2011-07-20
JP4875398B2 (en) 2012-02-15
JP2007291867A (en) 2007-11-08
BRPI0711024A2 (en) 2012-03-06
BRPI0711024B1 (en) 2019-07-02
CN101400883A (en) 2009-04-01

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