JP4295065B2 - Fuel pump mounting structure - Google Patents

Fuel pump mounting structure Download PDF

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Publication number
JP4295065B2
JP4295065B2 JP2003379125A JP2003379125A JP4295065B2 JP 4295065 B2 JP4295065 B2 JP 4295065B2 JP 2003379125 A JP2003379125 A JP 2003379125A JP 2003379125 A JP2003379125 A JP 2003379125A JP 4295065 B2 JP4295065 B2 JP 4295065B2
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Japan
Prior art keywords
fuel pump
fuel
fuel tank
bracket
mounting structure
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JP2003379125A
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JP2005113892A5 (en
JP2005113892A (en
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秀樹 林
勝一 八木澤
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2003379125A priority Critical patent/JP4295065B2/en
Priority to TW093128613A priority patent/TWI257451B/en
Priority to CN2004100959522A priority patent/CN1605747B/en
Publication of JP2005113892A publication Critical patent/JP2005113892A/en
Publication of JP2005113892A5 publication Critical patent/JP2005113892A5/ja
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J35/00—Fuel tanks specially adapted for motorcycles or engine-assisted cycles; Arrangements thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere

Description

本発明は、燃料タンクの内部に内蔵し、燃料ポンプ本体に付属して燃料ポンプ本体を燃料タンクの所定個所に取付けるときに用いる燃料ポンプケースの取付構造に関するものである。 The present invention is built into the interior of the fuel tank, to a preparative attachment structure of the fuel pump case used when supplied with the fuel pump body mounting the fuel pump body at a predetermined location of the fuel tank.

従来、燃料ポンプに付属し、燃料ポンプを燃料タンクの所定位置に取付けるときに用いる燃料ポンプケースが知られている（例えば、特許文献１参照。）。
特開２００２−２８５９３１公報（図１０） 2. Description of the Related Art Conventionally, a fuel pump case attached to a fuel pump and used when the fuel pump is attached to a predetermined position of a fuel tank is known (for example, see Patent Document 1).
JP 2002-285931 A (FIG. 10)

特許文献１を次図に基づいて説明する。
図７は従来の技術の基本構成を説明した図であり、ポンプケース２００に燃料ポンプ２０１と電源供給カプラ２０２とを装着し、この電源供給カプラ２０２に燃料ポンプ２０１の電源供給ケーブル２０３の先端に取付けた相手側カプラ２０４を差し込み、燃料タンクの底壁２０５の外側にシール部材２０６と、ポンプケース２００を順にセットし、固定部材２０７と底壁２０５とでシール部材２０６及びポンプケース２００を狭持し、締付けナット２０９を締付けて燃料ポンプ２０１と一体化したポンプケース２００を取付けたことを示す。Patent document 1 is demonstrated based on the following figure.
FIG. 7 is a diagram for explaining the basic configuration of the prior art. A fuel pump 201 and a power supply coupler 202 are attached to a pump case 200, and the power supply coupler 202 is attached to the end of a power supply cable 203 of the fuel pump 201. The attached counterpart coupler 204 is inserted, the seal member 206 and the pump case 200 are set in order on the outside of the bottom wall 205 of the fuel tank, and the seal member 206 and the pump case 200 are sandwiched between the fixing member 207 and the bottom wall 205. It is shown that the pump case 200 integrated with the fuel pump 201 is attached by tightening the tightening nut 209.

ポンプケース２００の取付け構造は、燃料タンクの底壁２０５に下側から固定部材２０７を取付け、シール部材２０６及びポンプケース２００とを挟持して、ポンプケース２００の荷重を固定部材２０７で受けるという構造である。  The mounting structure of the pump case 200 is a structure in which a fixing member 207 is attached to the bottom wall 205 of the fuel tank from below, the seal member 206 and the pump case 200 are sandwiched, and the load of the pump case 200 is received by the fixing member 207. It is.

シール部材の締付け時の厚さは、固定部材２０７とポンプケース２００の２部品の寸法から決定される。従って、シール部材２０６の締め代管理には、常にこれらの２部品の寸法管理が必要であった。  The thickness at the time of tightening of the seal member is determined from the dimensions of the two parts of the fixing member 207 and the pump case 200. Therefore, it is always necessary to manage the dimensions of these two parts in order to manage the tightening allowance of the seal member 206.

本発明は、所定のシール作用を確保し、締め代管理を容易にする燃料ポンプ取付構造を提供することを課題とする。 It is an object of the present invention to provide a fuel pump mounting structure that ensures a predetermined sealing action and facilitates tightening allowance management.

請求項１に係る発明は、燃料ポンプ本体に付属してこの燃料ポンプ本体を燃料タンクの所定個所に取付けるときに用いるケースであって、それのフランジ部をシール部材を介して燃料タンク側へ押圧することでシール作用を発揮させる形式の燃料ポンプケースにおいて、フランジ部の縁を燃料タンク側に折曲げて折曲げ部とし、この折曲げ部の内側に、且つ、フランジ部と燃料タンク側の間にシール部材が配置され、折曲げ部の高さを、シール部材が所定のシール作用を発揮するシール部材厚さに合致させ、シール部材および折曲げ部の縁を受けるブラケットを燃料タンク側に設け、ブラケットに、フランジ部を燃料タンクの側へ押圧する板状の固定部材を取付け、この固定部材とブラケットとでフランジ部を挟持し折曲げ部の縁をブラケットに当接させて固定することを特徴とする。 Invention, the fuel pump body supplied with the fuel pump body a case that is used when attached to a predetermined position of the fuel tank, pressing its flange portion via a sealing member to the fuel tank side according to claim 1 In the fuel pump case of the type that exhibits the sealing action, the edge of the flange portion is bent to the fuel tank side to form a bent portion, inside the bent portion and between the flange portion and the fuel tank side. A seal member is arranged on the fuel tank, the height of the bent portion is matched to the thickness of the seal member where the seal member exhibits a predetermined sealing action, and a bracket for receiving the edge of the seal member and the bent portion is provided on the fuel tank side . , bracket to bracket mounting the plate-shaped fixing member for pressing the flange portion to the side of the fuel tank, the edge of the bent portion sandwiching the flange portion between the fixing member and the bracket It is brought into contact, characterized in that fixed.

燃料タンク側へ押圧してシール作用を発揮する燃料ポンプケースのフランジ部を折曲げ、折曲げたフランジ折曲げ部の高さを、シール部材が所定のシール作用を発揮するようにシール部材厚さに合致させた。
フランジ折曲げ部の高さをシール部材厚さに合致させたので、フランジ折曲げ部の高さの管理のみで所定のシール作用を容易に発揮させることができる。
請求項２に係る発明では、燃料タンクは、燃料ポンプ本体を取付ける所定箇所に、下方に段差を持つ段差部を備え、この段差部に、シール部材と折曲げ部の縁を位置させて、燃料ポンプ本体を取付けることを特徴とする。
請求項３に係る発明は、段差部には、この段差部からケースのフランジ部の外方に延びる水抜き通路を備えたことを特徴とする。
請求項４に係る発明では、シール部材は、Ｌ字断面を呈し、外周部が、フランジ部と燃料タンク側の間に挟持され、内周部が、フランジ部から燃料タンク側へ延在しつつケースと燃料タンク側とに当接していることを特徴とする。
請求項５に係る発明は、ブラケットには、燃料タンク側から固定部材側へ突出する凸部を備えるサブブラケットを含み、この凸部に形成された穴部にボルトを差し込んでサブブラケットをブラケットに固定し、ボルトとナットとの間に固定部材を挟持するようにしたことを特徴とする。 The flange of the fuel pump case that exerts a sealing action by pressing toward the fuel tank side is bent, and the height of the bent flange bent part is set so that the sealing member exhibits a predetermined sealing action. Matched.
Since the height of the flange bent part is matched with the thickness of the seal member, a predetermined sealing action can be easily exhibited only by managing the height of the flange bent part.
In the invention according to claim 2, the fuel tank is provided with a step portion having a step below at a predetermined position where the fuel pump main body is attached, and the edge of the seal member and the bent portion is positioned at the step portion, A pump body is attached.
The invention according to claim 3 is characterized in that the stepped portion is provided with a drainage passage extending from the stepped portion to the outside of the flange portion of the case.
In the invention according to claim 4, the seal member has an L-shaped cross section, the outer peripheral portion is sandwiched between the flange portion and the fuel tank side, and the inner peripheral portion extends from the flange portion to the fuel tank side. It is in contact with the case and the fuel tank side.
According to a fifth aspect of the present invention, the bracket includes a sub bracket having a convex portion protruding from the fuel tank side to the fixing member side, and a bolt is inserted into a hole formed in the convex portion so that the sub bracket is used as the bracket. The fixing member is clamped between the bolt and the nut.

請求項１に係る発明では、燃料ポンプケースのフランジ部を折曲げ、折曲げたフランジ折曲げ部の高さをシール部材厚さに合致させたので、フランジ折曲げ部の高さの管理のみで、所定のシール作用を容易に確保することができるという利点がある。
請求項２に係る発明では、燃料ポンプ本体を取り付ける所定箇所に、下方に段差を持つ段差部を備え、この段差部に、シール部材と折曲げ部を位置させて、燃料ポンプ本体を取り付けるので、燃料ポンプを低く配置することができる。燃料ポンプを低く配置することが可能となるため、フロアをフラット形状にし易くなるという利点がある。
請求項３に係る発明では、段差部には、この段差部からケースのフランジ部の外方に延びる水抜き通路を備えたので、段差部の水抜きが確実にできるという利点がある。 In the invention according to claim 1, since the flange portion of the fuel pump case is bent and the height of the bent flange portion is matched with the thickness of the seal member, only the height of the flange bent portion is managed. There is an advantage that a predetermined sealing action can be easily secured.
In the invention according to claim 2, the fuel pump main body is attached to the predetermined portion where the fuel pump main body is attached by providing a stepped portion having a step below, and the sealing member and the bent portion are positioned on the stepped portion. The fuel pump can be arranged low. Since it becomes possible to arrange | position a fuel pump low, there exists an advantage that it becomes easy to make a floor into a flat shape.
In the invention which concerns on Claim 3, since the level difference part was equipped with the drainage channel | path extended from the level difference part to the outward of the flange part of a case, there exists an advantage that the level difference part can be drained reliably.

図１は本発明に係る自動二輪車の左側面図である。なお、図面は符号の向きに見るものとする。
自動二輪車１０は、車体フレーム１１と、車体フレーム１１のヘッドパイプ１１ａに取付けたフロントフォーク１２と、フロントフォーク１２に取付けた前輪１３と、フロントフォーク１２に連結したハンドル１４と、車体フレーム１１の後部に上下スイング可能に取付けたユニットスイングエンジン１５と、ユニットスイングエンジン１５に取付けた後輪１６と、ユニットスイングエンジン１５の後端部を懸架したリヤクッションユニット１７と、車体フレーム１１の後部上部に取付けた収納ボックス１８と、収納ボックス１８の上に配置し開閉可能に取付けたシート１９とを、主要構成とした自動二輪車である。FIG. 1 is a left side view of a motorcycle according to the present invention. The drawings are viewed in the direction of the reference numerals.
The motorcycle 10 includes a body frame 11, a front fork 12 attached to a head pipe 11a of the body frame 11, a front wheel 13 attached to the front fork 12, a handle 14 connected to the front fork 12, and a rear part of the body frame 11. A unit swing engine 15 attached to the unit swing engine 15, a rear wheel 16 attached to the unit swing engine 15, a rear cushion unit 17 that suspends the rear end of the unit swing engine 15, and a rear upper part of the body frame 11. The motorcycle includes a storage box 18 and a seat 19 disposed on the storage box 18 so as to be openable and closable.

車体フレーム１１は、ヘッドパイプ１１ａを一体成形したダイキャスト製フロントフレーム１１Ｆと、ダイキャスト製リヤフレーム１１Ｒとを、連結部１１Ｃで連結した。
ユニットスイングエンジン１５は、エンジン２１と遠心クラッチ付きベルトコンバータ無段変速機２２とからなる。エンジン２１は、シリンダ部分を収納ボックス１８と燃料タンク４２との間に臨ませ、略水平方向に傾斜した水冷式４サイクルエンジンである。In the vehicle body frame 11, a die-cast front frame 11F integrally formed with a head pipe 11a and a die-cast rear frame 11R are connected by a connecting portion 11C.
The unit swing engine 15 includes an engine 21 and a belt converter continuously variable transmission 22 with a centrifugal clutch. The engine 21 is a water-cooled four-cycle engine that has a cylinder portion facing the storage box 18 and the fuel tank 42 and is inclined in a substantially horizontal direction.

更に自動二輪車１０は、車体フレーム１１をボディカバー３０で覆ったものである。ボディカバー３０は、ヘッドパイプ１１ａの前部を覆うフロントカバー３１と、ヘッドパイプ１１ａを挟みフロントカバー３１の後部を覆うとともに運転者の脚部前方を覆うレッグシールド３２と、運転者の足を載せるステップフロア（低床式足載板）３３と、ステップフロア３３の外縁から下方へ延ばした左右一対のフロアサイドカバー３４と、これらフロアサイドカバー３４の下縁間を覆うアンダカバー３５と、シート１９下周りの前部を覆うシート下部カバー３６と、シート１９下後部と後輪１６の上方を覆うリヤカバー３７と、左右一対のサイドカバー３８とからなる。  Furthermore, the motorcycle 10 has a body frame 11 covered with a body cover 30. The body cover 30 includes a front cover 31 that covers the front of the head pipe 11a, a leg shield 32 that covers the rear of the front cover 31 with the head pipe 11a interposed therebetween, and covers the front of the driver's legs. A floor (low floor type footrest board) 33, a pair of left and right floor side covers 34 extending downward from the outer edge of the step floor 33, an under cover 35 covering between the lower edges of the floor side cover 34, and the seat 19 A seat lower cover 36 that covers the front part of the periphery, a rear cover 37 that covers the lower rear part of the seat 19 and the rear wheel 16, and a pair of left and right side covers 38.

このような自動二輪車１０は、レッグシールド３２の部分にメインスイッチ（イグニッションキーシリンダ）４１を配置し、ステップフロア３３の下に燃料タンク４２並びに燃料タンク４２内に内蔵した燃料ポンプ４３を配置し、車体フレーム１１の後部上端部に図示せぬトレイを設けるとともに、このトレイにラジエータ用リザーブタンク４４、バッテリ４５並びに制御ユニット４６を配置したものである。  In such a motorcycle 10, a main switch (ignition key cylinder) 41 is disposed at the leg shield 32, a fuel tank 42 and a fuel pump 43 built in the fuel tank 42 are disposed under the step floor 33, A tray (not shown) is provided at the rear upper end of the body frame 11, and a radiator reserve tank 44, a battery 45, and a control unit 46 are arranged on the tray.

図中、５１はハンドルグリップ、５２は左ブレーキレバー、５３はメータパネル、５４はミラー、５５は左右一対に設けられるフロントウインカ、５６Ｆは前側ハンドルカバー、５６Ｒは後側ハンドルカバー、５７はヘッドランプ、５８はフロントカバー３１内に設けられるホーン、５９はフロントフォーク１２と共に回動するフロントフェンダ、６１は左右一対のエンジンハンガ、６２はエンジン始動用キックペダル、６３は車体左側に設けたエアクリーナ、６４はキャブレータ、６５はエンジン２１のクランク軸２１ａの右端に設けたエンジン冷却用ラジエータ、６６はエンジン用排気管、６７は車体右側に設けた排気用マフラ、７１はメインスタンド、７２はリヤフェンダ、７３はテールランプ、７４はリヤウインカ、７５はキャリア、Ｈｅはヘルメットである。  In the figure, 51 is a handle grip, 52 is a left brake lever, 53 is a meter panel, 54 is a mirror, 55 is a front turn signal provided in a pair of left and right, 56F is a front handle cover, 56R is a rear handle cover, and 57 is a headlamp. , 58 is a horn provided in the front cover 31, 59 is a front fender that rotates together with the front fork 12, 61 is a pair of left and right engine hangers, 62 is an engine starting kick pedal, 63 is an air cleaner provided on the left side of the vehicle body, 64 Is a carburetor, 65 is an engine cooling radiator provided at the right end of the crankshaft 21a of the engine 21, 66 is an exhaust pipe for the engine, 67 is an exhaust muffler provided on the right side of the vehicle body, 71 is a main stand, 72 is a rear fender, 73 is Tail lamp, 74 is rear turn signal, 75 is carrier He is a helmet.

図２は図１の２部拡大断面図であり、本発明の燃料ポンプケースを装備した燃料タンクの断面図を示す。
燃料ポンプケース８０は、燃料ポンプ４３本体に付属して燃料ポンプ４３本体を燃料タンク４２の所定個所に取付けるときに用いるケースである。そして、燃料ポンプ４３の吐出口８１からエンジン２１（図１参照）へ向かう燃料の通路８２を内蔵した燃料ポンプケース８０において、燃料の通路８２は、燃料ポンプの吐出口８１に直交する燃料出口８３を備え、且つ燃料ポンプの吐出口８１から吐出した燃料が円滑に燃料出口８３に向かうように傾斜したガイド面８４を備えた。2 is an enlarged cross-sectional view of part 2 of FIG. 1, and shows a cross-sectional view of a fuel tank equipped with the fuel pump case of the present invention.
The fuel pump case 80 is a case attached to the main body of the fuel pump 43 and used when the main body of the fuel pump 43 is attached to a predetermined portion of the fuel tank 42. In the fuel pump case 80 having a built-in fuel passage 82 from the discharge port 81 of the fuel pump 43 toward the engine 21 (see FIG. 1), the fuel passage 82 is perpendicular to the discharge port 81 of the fuel pump. And a guide surface 84 that is inclined so that the fuel discharged from the discharge port 81 of the fuel pump is smoothly directed to the fuel outlet 83.

そして、燃料出口８２に燃料供給路８５を付設し、燃料供給路８５の出口にエンジン側に向けて燃料パイプ８７を取付けた。
また、燃料の通路８２にリリーフ弁８８に連通する燃料排出口８９を設けた。
なお、９１は燃料タンク４２から燃料を吸入する吸入口、９２はサンクションフィルター、９３は燃料切れ検出ユニット、９４は燃料切れ検出用フロートである。A fuel supply path 85 is attached to the fuel outlet 82, and a fuel pipe 87 is attached to the outlet of the fuel supply path 85 toward the engine.
In addition, a fuel discharge port 89 communicating with the relief valve 88 is provided in the fuel passage 82.
Note that 91 is an intake port for sucking fuel from the fuel tank 42, 92 is a suction filter, 93 is a fuel shortage detection unit, and 94 is a fuel shortage detection float.

次に、燃料ポンプケース８０の取付け関係について説明する。
フロントフレーム１１Ｆに燃料タンク４２を取付け、燃料タンク４２の上面に燃料ポンプケース８０が嵌まるようにケース取付けブラケット９６を設けた。
あらかじめ、燃料タンク４２に燃料ポンプケース８０を固定するために、ケース取付けブラケット９６にサブブラケット９７を介してボルト９８を取付けた。Next, the attachment relationship of the fuel pump case 80 will be described.
The fuel tank 42 is attached to the front frame 11F, and a case attachment bracket 96 is provided so that the fuel pump case 80 fits on the upper surface of the fuel tank 42.
In advance, in order to fix the fuel pump case 80 to the fuel tank 42, bolts 98 are attached to the case mounting bracket 96 via the sub bracket 97.

そして、ケース取付けブラケット９６に、燃料ポンプ本体４３、リリーフ弁８８を取付けた燃料ポンプケース８０とシール部材９９を嵌め、この燃料ポンプケース８０の上に固定部材１０１を載せて、最後に、締付けナット１０２により燃料ポンプケース８０を固定する。
燃料の通路８２に、燃料の通路内圧が所定圧力を超えると開いて燃料を燃料タンク４２に戻すリリーフ弁８８を臨ませた。Then, the fuel pump case 80 and the seal member 99 to which the fuel pump main body 43 and the relief valve 88 are attached are fitted to the case mounting bracket 96, and the fixing member 101 is placed on the fuel pump case 80. Finally, the tightening nut The fuel pump case 80 is fixed by 102.
A relief valve 88 that opens when the internal pressure of the fuel passage exceeds a predetermined pressure and returns the fuel to the fuel tank 42 is exposed to the fuel passage 82.

図３は図２の３矢視図であり、燃料タンク４２（図２参照）に燃料ポンプケース８０を嵌め、この燃料ポンプケース８０の上に固定部材１０１を載せて、最後に、締付けナット１０２により燃料ポンプケース８０を固定したことを示す。
燃料ポンプケース８０の上に燃料の通路８２を備え、燃料の通路８２の燃料出口８３に燃料供給路８５を付設した。
１０３は燃料ポンプ４３に電源を供給する電源供給コネクタである。FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2. The fuel pump case 80 is fitted into the fuel tank 42 (see FIG. 2), the fixing member 101 is placed on the fuel pump case 80, and finally the tightening nut 102. Indicates that the fuel pump case 80 is fixed.
A fuel passage 82 is provided on the fuel pump case 80, and a fuel supply passage 85 is attached to a fuel outlet 83 of the fuel passage 82.
A power supply connector 103 supplies power to the fuel pump 43.

図４は図２の４部拡大図であり、燃料ポンプケース８０の締付け構造について詳しく説明する。
燃料ポンプケース８０を構成するフランジ部の縁１０５を燃料タンク４２側に折曲げて折曲げ部１０６とし、この折曲げ部１０６の高さＨを、シール部材９９が所定のシール作用を発揮するシール部材厚さに合致させた。FIG. 4 is an enlarged view of part 4 of FIG. 2, and the tightening structure of the fuel pump case 80 will be described in detail.
The edge 105 of the flange portion constituting the fuel pump case 80 is bent toward the fuel tank 42 to form a bent portion 106, and the height H of the bent portion 106 is a seal with which the seal member 99 exhibits a predetermined sealing action. Matched to member thickness.

前述のように、燃料タンク４２の上側に燃料ポンプケース８０が嵌まるようにケース取付けブラケット９６を設け、ケース取付けブラケット９６にサブブラケット９７を介してボルト９８を取付けた。  As described above, the case mounting bracket 96 is provided so that the fuel pump case 80 fits on the upper side of the fuel tank 42, and the bolt 98 is attached to the case mounting bracket 96 via the sub bracket 97.

ケース取付けブラケット９６の上面１０７にシール部材の下面１０８及びフランジ部の縁１０５を折曲げた折曲げ部１０６の縁１０５とを当接し、シール部材９９の上面１０９にフランジ部の下面１１１を当接させ、このフランジ部の上面１１２に固定部材の下面１１３を当て、サブブラケットの鍔部１１４と固定部材１０１を、ボルト９８と締付けナット１０２とで挟持して締付けることにより燃料タンク４２に燃料ポンプケース８０を固定する。  The lower surface 108 of the seal member and the edge 105 of the bent portion 106 obtained by bending the edge 105 of the flange portion are brought into contact with the upper surface 107 of the case mounting bracket 96, and the lower surface 111 of the flange portion is brought into contact with the upper surface 109 of the seal member 99. The lower surface 113 of the fixing member is brought into contact with the upper surface 112 of the flange portion, and the flange portion 114 of the sub bracket and the fixing member 101 are clamped between the bolt 98 and the tightening nut 102 to be fastened to the fuel tank 42. 80 is fixed.

なお、サブブラケット９７の穴部１１５にボルト９８を差し込んだ後、サブブラケット９７の脚部１１６をケース取付けブラケット９６にあらかじめ固着するが、固着方法は例えば、スポット溶接、アーク溶接等の溶接手段により固着する。
図３に戻って、燃料ポンプケース８０を固定するために設けたボルト９８の個数を４つとしたが、所定のシール作用を得るための個数については４つに限定するものではなく任意の数に設定することができる。ボルト９８のサイズについても、任意のサイズに設定可能とする。In addition, after inserting the bolt 98 into the hole 115 of the sub bracket 97, the leg portion 116 of the sub bracket 97 is fixed to the case mounting bracket 96 in advance. The fixing method is, for example, by welding means such as spot welding or arc welding. Stick.
Returning to FIG. 3, the number of bolts 98 provided for fixing the fuel pump case 80 is four, but the number for obtaining a predetermined sealing action is not limited to four, but can be any number. Can be set. The size of the bolt 98 can also be set to an arbitrary size.

図５は本発明に係る燃料ポンプケースの締付け作用図であり、ケース取付けブラケット９６に燃料タンク４２と一体化しフランジ部１０４にシール部材９９を嵌めた燃料ポンプケース８０を載せ、固定部材１０１を載せ、締付けナット１０２をボルト９８に装着して、燃料ポンプケース８０を締付け途中のフランジ部１０４とシール部材９９とケース取付けブラケットの上面１０７の３者相互の位置関係を示す。  FIG. 5 is a diagram showing the tightening action of the fuel pump case according to the present invention. The fuel pump case 80, which is integrated with the fuel tank 42 and fitted with the seal member 99 on the flange 104, is mounted on the case mounting bracket 96, and the fixing member 101 is mounted. The tightening nut 102 is attached to the bolt 98, and the three-way positional relationship among the flange portion 104, the seal member 99, and the upper surface 107 of the case mounting bracket during tightening of the fuel pump case 80 is shown.

燃料ポンプケース８０を締付け途中において、先ずシール部材９９の下面１０８がケース取付けブラケット９６の上面１０７に当接し、締付けナット１０２の締付けをすすめると、シール部材の下面１０８が当接したまま、フランジ部の折曲げ部１０６の縁１０５はブラケットの上面１０７に近づく。  In the middle of tightening the fuel pump case 80, first, the lower surface 108 of the seal member 99 comes into contact with the upper surface 107 of the case mounting bracket 96, and when the tightening of the tightening nut 102 is advanced, the flange portion is kept in contact with the lower surface 108 of the seal member. The edge 105 of the bent portion 106 approaches the upper surface 107 of the bracket.

図４に戻って、締付けナット１０２の締付けを更にすすめると、シール部材９９の下面１０８がケース取付けブラケット９６の上面１０７に当接したままつぶれ、ついには、フランジ部の折曲げ部１０６の縁１０５がブラケットの上面１０７に当接して締付けが完了する。  Returning to FIG. 4, when the tightening of the tightening nut 102 is further promoted, the lower surface 108 of the seal member 99 is crushed while being in contact with the upper surface 107 of the case mounting bracket 96, and finally the edge 105 of the bent portion 106 of the flange portion. Is brought into contact with the upper surface 107 of the bracket to complete the tightening.

燃料タンク４２側へ押圧してシール作用を発揮する燃料ポンプケース８０のフランジ部１０４を折曲げ、折曲げたフランジ折曲げ部１０６の高さＨを、シール部材９９が所定のシール作用を発揮するようにシール部材厚さＨに合致させた。
フランジ折曲げ部１０６の高さＨをシール部材厚さＨに合致させたので、フランジ折曲げ部１０６の高さの管理のみで所定のシール作用を容易に発揮させることができる。The flange portion 104 of the fuel pump case 80 that exerts a sealing action by pressing toward the fuel tank 42 is bent, and the seal member 99 exhibits a predetermined sealing action with respect to the height H of the bent flange bent portion 106. Thus, the seal member thickness H was matched.
Since the height H of the flange bent portion 106 is matched with the seal member thickness H, a predetermined sealing action can be easily exhibited only by managing the height of the flange bent portion 106.

図６は本発明に係る燃料ポンプを装備した燃料ポンプケースの作用図であり、吸入口９１からサンクションフィルター９２を通じて矢印ｃのごとく燃料ポンプ４３に入った燃料は、燃料ポンプの吐出口８１から矢印ｄのごとく燃料の通路８２に入り、吐出口８１から燃料出口８３に向かうように傾斜したガイド面８４の作用により、燃料をより円滑に燃料出口８３に流すことができる。そして、燃料の通路８２の燃料圧力が所定圧力以上に上昇すると、この燃料はリリーフ弁８８により矢印ｅのごとく流れることを示す。  FIG. 6 is an operation diagram of a fuel pump case equipped with the fuel pump according to the present invention. The fuel that has entered the fuel pump 43 from the suction port 91 through the suction filter 92 as indicated by the arrow c is shown by the arrow from the discharge port 81 of the fuel pump. The fuel can flow more smoothly to the fuel outlet 83 by the action of the guide surface 84 that inclines so as to enter the fuel passage 82 as indicated by d and go from the discharge port 81 toward the fuel outlet 83. When the fuel pressure in the fuel passage 82 rises to a predetermined pressure or higher, this fuel flows through the relief valve 88 as shown by an arrow e.

燃料ポンプの吐出口８１から吐出した燃料は、燃料の通路８２に傾斜させて配置したガイド面８４にガイドされてゆるやかに向きを変え燃料供給管８５に入る。
燃料はガイド面８４によりゆるやかに向きを変え、円滑に流れ燃料供給管８５に入るため、流れの乱れは少ない。The fuel discharged from the discharge port 81 of the fuel pump is guided by a guide surface 84 arranged to be inclined to the fuel passage 82 and gradually changes its direction and enters the fuel supply pipe 85.
The fuel gently changes its direction by the guide surface 84 and smoothly flows into the fuel supply pipe 85, so that there is little disturbance in the flow.

また、リリーフ弁８８を燃料ポンプケース８０と一体化したので、リリーフ弁８８関連の追加部品を不要にし、制約の多い燃料ポンプケース８０廻りのスペースを節減することができる。  Further, since the relief valve 88 is integrated with the fuel pump case 80, additional parts related to the relief valve 88 are not required, and the space around the fuel pump case 80 with many restrictions can be saved.

さらにまた、燃料ポンプの吐出口８１から吐出した燃料が円滑に燃料出口８３に向かうように傾斜させたガイド面８４は、燃料ポンプケース８０の壁面１０４を傾斜させることにより形成した。
燃料ポンプケース８０の壁面１０４を傾斜させることによりガイド面８４を形成したので、追加部材を準備すること無く燃料の通路８２内の燃料を円滑に流すことができる。Furthermore, the guide surface 84 that is inclined so that the fuel discharged from the discharge port 81 of the fuel pump smoothly moves toward the fuel outlet 83 is formed by inclining the wall surface 104 of the fuel pump case 80.
Since the guide surface 84 is formed by inclining the wall surface 104 of the fuel pump case 80, the fuel in the fuel passage 82 can flow smoothly without preparing an additional member.

図７は図３の別実施例図であり、燃料ポンプケース８０の上に固定部材１０１を載せて、締付けナット１０２により燃料ポンプケース８０を固定したことを示す。
本図において、締付けナット１０２による締付け箇所を８箇所としたが、必要に応じて締付けナット１０２の個数を変更することも可能である。
また、ケース取付けブラケット９６Ｂの上面１０７Ｂには、取付け穴に沿って下方に段差を持つ段差部２０１を備え、さらに水抜き通路２０２を備えた。 FIG. 7 is a diagram showing another embodiment of FIG. 3 and shows that the fixing member 101 is placed on the fuel pump case 80 and the fuel pump case 80 is fixed by the tightening nut 102.
In this figure, the number of tightening nuts 102 is eight, but the number of tightening nuts 102 can be changed as necessary.
On the upper surface 107B of the case mounting bracket 96B, with the stepped difference portion 201 having a stepped downward along the mounting hole, further comprising a drain passage 202.

図８は図４の別実施例図であり、燃料タンク４２の上側に燃料ポンプケース８０が嵌まるようにケース取付けブラケット９６Ｂを設け、ケース取付けブラケット９６Ｂにサブブラケット９７Ｂを介してボルト９８を取付けたことを示す。  FIG. 8 is a diagram showing another embodiment of FIG. 4, and a case mounting bracket 96B is provided on the upper side of the fuel tank 42 so that the fuel pump case 80 is fitted, and a bolt 98 is attached to the case mounting bracket 96B via a sub bracket 97B. It shows that.

図９は本発明の別実施例に係るサブブラケットの矢視図であり、１１６はサブブラケット９７Ｂの脚部、９８はボルトを示す。
図に示すように、ブラケットの脚部１１６の間にあってボルト９８の下方の一箇所に水抜き通路２０２を配置した。
別実施例によれば、燃料ポンプを低く配置することができることから、ステップフロア３３をフラット形状にし易くなる。また、段差部２０１の水抜きも確実にできる。 9 is an arrow view of a sub-bracket according to another embodiment of the present invention, 116 legs of the sub-bracket 97B, 98 denotes a bolt.
As shown in the figure, a drainage passage 202 is disposed at one location below the bolt 98 between the bracket legs 116.
According to another embodiment, since the fuel pump can be arranged low, the step floor 33 can be easily formed into a flat shape. In addition, water can be reliably removed from the step portion 201 .

尚、本発明に係るポンプケースのシール部材の材質は、ゴム系でも良いしプラスチック系でも良い。
また、シール部材の形状は、本実施の形態において２リップタイプとしたが、１リップタイプ及び複数リップタイプでも差し支えない。
更にまた、本発明の燃料ポンプケースは、実施の形態では燃料タンクに内蔵した自動二輪車に適用したが、三輪車にも適用可能であり、一般の車両に適用することは差し支えない。The material of the seal member of the pump case according to the present invention may be rubber or plastic.
In addition, the shape of the seal member is a two-lip type in the present embodiment, but a one-lip type or a plurality of lip types may be used.
Furthermore, although the fuel pump case of the present invention is applied to a motorcycle built in a fuel tank in the embodiment, it can also be applied to a tricycle and can be applied to a general vehicle.

本発明の燃料ポンプケースは、自動二輪車に好適である。  The fuel pump case of the present invention is suitable for a motorcycle.

本発明の燃料ポンプケースを備えた自動二輪車の側面図である。  1 is a side view of a motorcycle including a fuel pump case of the present invention. 図１の２部拡大断面図であり、本発明の燃料ポンプケースを装備した燃料タンクの断面図である。  FIG. 2 is an enlarged cross-sectional view of part 2 of FIG. 1, and is a cross-sectional view of a fuel tank equipped with the fuel pump case of the present invention. 図２の３矢視図である。  FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2. 図２の４部拡大図である。  FIG. 3 is an enlarged view of part 4 of FIG. 2. 本発明に係る燃料ポンプケースの締付け作用図である。  FIG. 5 is a tightening action diagram of the fuel pump case according to the present invention. 本発明に係る燃料ポンプを装備した燃料ポンプケースの作用図である。  It is an operation view of a fuel pump case equipped with a fuel pump according to the present invention. 図３の別実施例図である。  It is another Example figure of FIG. 図４の別実施例図である。  It is another Example figure of FIG. 本発明の別実施例に係るサブブラケットの矢視図である。  It is an arrow view of the sub bracket which concerns on another Example of this invention. 従来の技術の基本構成を説明した図である。  It is a figure explaining the basic composition of the prior art.

符号の説明Explanation of symbols

４２…燃料タンク、４３…燃料ポンプ、８０…燃料ポンプケース、８２…燃料の通路、８４…ガイド面、９６…ケース取付けブラケット、９７…サブブラケット、９９…シール部材、１０１…固定部材、１０４…フランジ部、１０５…フランジ部の縁、１０６…折曲げ部。  42 ... Fuel tank, 43 ... Fuel pump, 80 ... Fuel pump case, 82 ... Fuel passage, 84 ... Guide surface, 96 ... Case mounting bracket, 97 ... Sub bracket, 99 ... Seal member, 101 ... Fixing member, 104 ... Flange part, 105 ... edge of flange part, 106 ... bent part.

Claims (5)

燃料ポンプ本体に付属してこの燃料ポンプ本体を燃料タンクの所定個所に取付けるときに用いるケースを備え、このケースのフランジ部をシール部材を介して燃料タンク側へ押圧することでシール作用を発揮させる形式の燃料ポンプ取付構造において、
前記フランジ部の縁を前記燃料タンク側に折曲げて折曲げ部の縁とし、この折曲げ部の内側に、且つ、前記フランジ部と前記燃料タンク側の間に前記シール部材が配置され、前記折曲げ部の高さを、前記シール部材が所定のシール作用を発揮するシール部材厚さに合致させ、
前記シール部材および前記折曲げ部の縁を受けるブラケットを前記燃料タンク側に設け、
前記ブラケットに、前記フランジ部を前記燃料タンクの側へ押圧する板状の固定部材を取付け、
この固定部材と前記ブラケットとで前記フランジ部を挟持し前記折曲げ部の縁を前記ブラケットに当接させて固定することを特徴とする燃料ポンプ取付構造。 It includes a case which is used when mounting the fuel pump body supplied with the fuel pump body at a predetermined location of the fuel tank, to exert sealing action by pressing the flange portion of the case through a seal member to the fuel tank In the type of fuel pump mounting structure,
The edge of the flange portion is bent to the fuel tank side to form an edge of the bent portion, and the seal member is disposed inside the bent portion and between the flange portion and the fuel tank side, The height of the bent portion is matched to the thickness of the sealing member where the sealing member exhibits a predetermined sealing action,
A bracket for receiving an edge of the sealing member and the bent portion is provided on the fuel tank side ,
To the bracket, attaching the plate-shaped fixing member for pressing the flange portion to the side of the fuel tank,
A fuel pump mounting structure characterized in that the fixing member and the bracket sandwich the flange portion and fix the bent portion by contacting the edge of the bent portion with the bracket. 前記燃料タンクは、前記燃料ポンプ本体を取付ける所定箇所に、下方に段差を持つ段差部を備え、この段差部に、前記シール部材と前記折曲げ部の縁を位置させて、前記燃料ポンプ本体を取付けることを特徴とする請求項１記載の燃料ポンプ取付構造。 The fuel tank includes a step portion having a step at a lower portion at a predetermined position where the fuel pump main body is attached. The fuel pump main body is mounted on the step portion by positioning an edge of the seal member and the bent portion. The fuel pump mounting structure according to claim 1, wherein the fuel pump mounting structure is mounted. 前記段差部には、この段差部から前記ケースのフランジ部の外方に延びる水抜き通路を備えたことを特徴とする請求項２記載の燃料ポンプ取付構造。   3. The fuel pump mounting structure according to claim 2, wherein the step portion includes a drainage passage extending from the step portion to the outside of the flange portion of the case. 前記シール部材は、Ｌ字断面を呈し、外周部が、前記フランジ部と前記燃料タンク側の間に挟持され、内周部が、前記フランジ部から前記燃料タンク側へ延在しつつ前記ケースと前記燃料タンク側とに当接していることを特徴とする請求項１、請求項２又は請求項３記載の燃料ポンプ取付構造。   The seal member has an L-shaped cross section, an outer peripheral portion is sandwiched between the flange portion and the fuel tank side, and an inner peripheral portion extends from the flange portion to the fuel tank side and the case. The fuel pump mounting structure according to claim 1, wherein the fuel pump mounting structure is in contact with the fuel tank side. 前記ブラケットには、前記燃料タンク側から前記固定部材側へ突出する凸部を備えるサブブラケットを含み、この凸部に形成された穴部にボルトを差し込んで前記サブブラケットを前記ブラケットに固定し、前記ボルトとナットとの間に前記固定部材を挟持するようにしたことを特徴とする請求項１〜４のいずれか１項記載の燃料ポンプ取付構造。   The bracket includes a sub bracket having a convex portion protruding from the fuel tank side to the fixing member side, and a bolt is inserted into a hole formed in the convex portion to fix the sub bracket to the bracket. The fuel pump mounting structure according to claim 1, wherein the fixing member is sandwiched between the bolt and the nut.
JP2003379125A 2003-10-02 2003-10-02 Fuel pump mounting structure Expired - Fee Related JP4295065B2 (en)

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JP2003379125A JP4295065B2 (en) 2003-10-02 2003-10-02 Fuel pump mounting structure
TW093128613A TWI257451B (en) 2003-10-02 2004-09-21 Fuel pump case
CN2004100959522A CN1605747B (en) 2003-10-02 2004-09-30 Fuel pump mounting structure

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JP4488362B2 (en) 2005-11-01 2010-06-23 本田技研工業株式会社 Fuel pump mounting structure
JP4755554B2 (en) * 2005-11-22 2011-08-24 本田技研工業株式会社 Scooter type fuel pump arrangement structure
ATE456505T1 (en) * 2007-09-03 2010-02-15 Yamaha Motor Res & Dev Europe Srl FUEL TANK ARRANGEMENT FOR A MOTORCYCLE AND MOTORCYCLE EQUIPPED WITH SUCH A TANK ARRANGEMENT
DE102009003051A1 (en) * 2009-05-13 2010-11-18 Robert Bosch Gmbh Method for filling a fuel system for motor vehicles
JP5358382B2 (en) * 2009-09-30 2013-12-04 本田技研工業株式会社 Fuel pump support structure
JP5123928B2 (en) * 2009-12-22 2013-01-23 本田技研工業株式会社 Fuel supply device
JP5664422B2 (en) * 2011-04-11 2015-02-04 スズキ株式会社 Fuel pump mounting structure and motorcycle
CN103213635A (en) * 2013-04-15 2013-07-24 江门市大长江集团有限公司 Fuel tank cap and oil filler sealing structure assembly for motorcycle
JP6300276B2 (en) 2014-12-15 2018-03-28 本田技研工業株式会社 Fuel pump unit seal structure
CN216887242U (en) * 2022-02-17 2022-07-05 上海峰飞航空科技有限公司 Leak protection oil tank and unmanned aerial vehicle

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JP3772630B2 (en) * 2000-03-02 2006-05-10 スズキ株式会社 Motorcycle fuel tank equipment
JP4432194B2 (en) * 2000-03-16 2010-03-17 株式会社デンソー Engine fuel supply packing
JP3938473B2 (en) * 2001-01-23 2007-06-27 本田技研工業株式会社 Fuel pump tank mounting structure
JP4176456B2 (en) * 2002-11-29 2008-11-05 本田技研工業株式会社 Fuel system layout structure for motorcycles

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