JP2007118886A - Fuel feeder - Google Patents

Fuel feeder Download PDF

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Publication number
JP2007118886A
JP2007118886A JP2005317039A JP2005317039A JP2007118886A JP 2007118886 A JP2007118886 A JP 2007118886A JP 2005317039 A JP2005317039 A JP 2005317039A JP 2005317039 A JP2005317039 A JP 2005317039A JP 2007118886 A JP2007118886 A JP 2007118886A
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Prior art keywords
fuel
fuel tank
fuel pump
opening
vehicle
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JP2005317039A
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JP4563920B2 (en
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Masaki Fujiwara
正樹 藤原
Masamitsu Anno
真実 庵野
Takashi Doi
喬 土肥
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2005317039A priority Critical patent/JP4563920B2/en
Priority to CNB200610142845XA priority patent/CN100497074C/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel feeder capable of effectively using a fuel in a fuel tank. <P>SOLUTION: The fuel feeder (a fuel pump device) 48 is constituted of a fuel pump 171 provided on a bottom face 151 of a fuel tank 13, and an erected wall 172 surrounding the fuel pump 171. In this condition, a front bottom face 151f of the fuel tank is inclined obliquely downwardly toward a rear part of a vehicle, and a rear bottom face 151r of the fuel tank 13 is inclined obliquely upwardly toward the rear part of the vehicle. The fuel pump 171 is provided on the bottom face 151r at the rear part of the fuel tank 13. An opening part 191 opened toward the bottom face 151f at the front part of the fuel tank 13. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、燃料供給装置の改良に関するものである。   The present invention relates to an improvement of a fuel supply device.

従来の燃料供給装置として、燃料タンクの傾斜した底面に取付けた燃料ポンプの周囲を筒状の囲い部で囲んだものが知られている（例えば、特許文献１参照。）。
特開２００１−２４７０７１公報 2. Description of the Related Art As a conventional fuel supply device, there is known a device in which a fuel pump attached to an inclined bottom surface of a fuel tank is surrounded by a cylindrical enclosure (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 2001-247071

特許文献１の図３には、燃料タンクの底面２２ａに貫通穴２７を開け、この貫通穴２７にポンプ取付ブラケット２８を取付け、このポンプ取付ブラケット２８に燃料ポンプ２３を取付けたことが記載されている。   FIG. 3 of Patent Document 1 describes that a through hole 27 is formed in the bottom surface 22 a of the fuel tank, a pump mounting bracket 28 is attached to the through hole 27, and the fuel pump 23 is attached to the pump mounting bracket 28. Yes.

燃料ポンプ２３は、ポンプ本体３５と、このポンプ本体３５の下部に一体的に設けた有底椀状のポンプケース３７とを備え、このポンプケース３７が上記ポンプ取付ブラケット２８に取付けられる。   The fuel pump 23 includes a pump main body 35 and a bottomed bowl-shaped pump case 37 provided integrally with a lower portion of the pump main body 35, and the pump case 37 is attached to the pump mounting bracket 28.

ポンプ取付ブラケット２８は、ポンプ本体３５を囲む筒状の囲い部３２を一体に形成したものであり、囲い部３２の上縁は燃料タンクの底面２２ａよりも高く形成される。
燃料タンク内の燃料は、ポンプ本体３５と囲い部３２との空隙４５及びポンプ本体３５とポンプケース３７との空隙４５を通ってポンプケース３７の底近傍に配置された吸入部４０からポンプ本体３５内に吸入される。 The pump mounting bracket 28 is integrally formed with a cylindrical enclosure 32 surrounding the pump body 35, and the upper edge of the enclosure 32 is formed higher than the bottom surface 22a of the fuel tank.
The fuel in the fuel tank passes through the gap 45 between the pump main body 35 and the enclosure 32 and the gap 45 between the pump main body 35 and the pump case 37, and the pump main body 35 from the suction part 40 disposed near the bottom of the pump case 37. Inhaled.

燃料タンク内の燃料が少なくなった場合に車両が急激な加減速を行っても、燃料が囲い部３２内及びポンプケース３７内に保持される。   Even when the vehicle suddenly accelerates or decelerates when the fuel in the fuel tank is low, the fuel is held in the enclosure 32 and the pump case 37.

例えば、燃料の液面が囲い部３２よりも下になった場合、その燃料は囲い部３２の内部に流入しにくくなり、使用できずに残ることがある。
本発明の目的は、燃料タンク内の燃料をより有効に使用することにある。 For example, when the liquid level of the fuel becomes lower than the enclosure 32, the fuel becomes difficult to flow into the enclosure 32 and may remain unusable.
An object of the present invention is to use the fuel in the fuel tank more effectively.

請求項１に係る発明は、燃料タンクの底面に設けた燃料ポンプと、この燃料ポンプを囲む起立壁とを備えた燃料供給装置において、燃料タンクの前部の底面を、車両後方に向かって斜め下がりに傾斜させ、燃料タンクの後部の底面を、車両後方に向かって斜め上がりに傾斜させ、燃料ポンプを、燃料タンク後部の底面に設け、起立壁に、燃料タンクの前部の底面に向けて開口する第一開口部を設けたことを特徴とする。   According to a first aspect of the present invention, there is provided a fuel supply apparatus including a fuel pump provided on a bottom surface of a fuel tank and an upright wall surrounding the fuel pump. The bottom surface of the front portion of the fuel tank is inclined toward the rear of the vehicle. Inclined downward, inclined the rear bottom of the fuel tank diagonally upward toward the rear of the vehicle, and provided the fuel pump on the bottom of the rear of the fuel tank, with the standing wall facing the bottom of the front of the fuel tank A first opening that opens is provided.

作用として、第一開口部が、燃料タンクの前部の底面と後部の底面との間に出来る最も低い位置の近傍に向けることが可能になり、この低い位置に溜まった燃料を第一開口部を通じて燃料ポンプに取り込みやすくなる。例えば、車体が車両前後方向に揺れたときには、燃料が第一開口部から起立壁内に流入しやすい。   As a function, the first opening can be directed to the vicinity of the lowest possible position between the front bottom surface and the rear bottom surface of the fuel tank, and the fuel accumulated in the lower position can be directed to the first opening. It becomes easy to take in the fuel pump through. For example, when the vehicle body shakes in the vehicle front-rear direction, fuel tends to flow into the standing wall from the first opening.

請求項２に係る発明は、起立壁の後部斜め側部に、燃料タンクのほぼ底面の高さに開口する第二開口部を設けたことを特徴とする。
作用として、車体が左右に揺れたときに、第二開口部から起立壁内に燃料を取り込みやすい。また、起立壁の後部は壁として残るため、例えば、車体が前上がりに傾斜したとき、あるいは、車両が加速したときでも、燃料を起立壁内に保持しやすい。 The invention according to claim 2 is characterized in that a second opening portion that opens to substantially the height of the bottom surface of the fuel tank is provided on the rear oblique side portion of the standing wall.
As an effect, when the vehicle body shakes to the left and right, it is easy to take in fuel into the standing wall from the second opening. Further, since the rear part of the standing wall remains as a wall, for example, even when the vehicle body is tilted forward or when the vehicle is accelerated, the fuel is easily held in the standing wall.

請求項１に係る発明では、燃料タンクの前部の底面を、車両後方に向かって斜め下がりに傾斜させ、燃料タンクの後部の底面を、車両後方に向かって斜め上がりに傾斜させ、燃料ポンプを、燃料タンクの後部の底面に設け、起立壁に、燃料タンクの前部の底面に向けて開口する第一開口部を設けたので、第一開口部を、燃料タンクの前部の底面と後部の底面との境部付近、即ち底面の最も低い位置の近傍に向けて開口させることができ、燃料タンク内の燃料を第一開口部を介して燃料ポンプに取込みやすくすることができ、燃料を有効に使用することできる。また、車体が車両前後方向に揺れたとき、特に発進、あるいは、加速したときに、第一開口部を介して燃料を起立壁内に流入しやすくすることができ、この場合も、燃料を有効に使用することができる。   In the invention according to claim 1, the bottom surface of the front portion of the fuel tank is inclined obliquely downward toward the rear of the vehicle, the bottom surface of the rear portion of the fuel tank is inclined obliquely upward toward the rear of the vehicle, and the fuel pump is The first opening is provided on the bottom surface of the rear part of the fuel tank, and the standing wall is opened toward the bottom surface of the front part of the fuel tank. Near the boundary with the bottom surface of the fuel tank, that is, near the lowest position on the bottom surface, making it easy to take the fuel in the fuel tank into the fuel pump through the first opening. Can be used effectively. In addition, when the vehicle body shakes in the longitudinal direction of the vehicle, especially when starting or accelerating, the fuel can easily flow into the upright wall through the first opening. Can be used for

請求項２に係る発明では、起立壁の後部斜め側部に、燃料タンクのほぼ底面の高さに開口する第二開口部を設けたので、車体が左右に振れたとき、例えば、左右に旋回したときに、第二開口部によって燃料を起立壁内部に取込みやすくすることができるとともに、起立壁の後部で起立壁の内側の燃料を保持しやすくすることができる。   In the invention according to claim 2, since the second opening portion that opens to the height of the bottom surface of the fuel tank is provided on the rear oblique side portion of the standing wall, when the vehicle body swings left and right, for example, it turns left and right When it does, it can make it easy to take in fuel inside a standing wall by a 2nd opening part, and can make it easy to hold | maintain the fuel inside a standing wall in the rear part of a standing wall.

本発明を実施するための最良の形態を添付図に基づいて以下に説明する。なお、図面は符号の向きに見るものとする。
図１は本発明に係る燃料供給装置を備えた自動二輪車の側面図であり、自動二輪車１０は、車体フレーム１７を、前端を構成するヘッドパイプ２１と、このヘッドパイプ２１から後方斜め下方に延ばしたメインフレーム２２と、このメインフレーム２２の後端部から後方へ延ばした左右一対のシートレール２３，２４（手前側の符号２３のみ示す。）と、メインフレーム２２の前端部からほぼ下方そして後方へ延ばした左右一対のダウンフレーム２６，２７と、メインフレーム２２の後部から後方斜め下方そして下方に延ばすことでダウンフレーム２６，２７の後端部にそれぞれ連結した左右一対のセンタフレーム２８，３１（手前側の符号２８のみ示す。）と、シートレール２３，２４及びセンタフレーム２８，３１のそれぞれに渡した左右一対のサブフレーム３２，３３（手前側の符号３２のみ示す。）とから構成し、ヘッドパイプ２１にフロントフォーク３６を回動自在に取付け、メインフレーム２２に燃料タンク１３を取付け、センタフレーム２８，３１に取付けた左右一対のピボットプレート３７，３８（手前側の符号３７のみ示す。）で、エンジン４１及び変速機４２からなるパワーユニット４３を支持するとともにスイングアーム４５を上下スイング自在に支持し、シートレール２３，２４でシート１６及び後部両側方に設けた後部側方ガード部材４６，４７を支持した車両である。
燃料タンク１３は、燃料ポンプ装置４８を内蔵したものである。 The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a side view of a motorcycle equipped with a fuel supply device according to the present invention. A motorcycle 10 includes a body frame 17 that extends from a head pipe 21 that constitutes a front end, and a rear obliquely downward direction from the head pipe 21. The main frame 22, a pair of left and right seat rails 23, 24 (only the reference numeral 23 on the front side is shown) extending rearward from the rear end portion of the main frame 22, and substantially downward and rearward from the front end portion of the main frame 22. A pair of left and right down frames 26, 27 extending to the rear, and a pair of left and right center frames 28, 31 connected to the rear ends of the down frames 26, 27 by extending obliquely downward and downward from the rear of the main frame 22 respectively. Only the front side 28 is shown.) And the left handed to the seat rails 23 and 24 and the center frames 28 and 31, respectively. It comprises a pair of subframes 32 and 33 (only the reference numeral 32 on the front side is shown), a front fork 36 is rotatably attached to the head pipe 21, a fuel tank 13 is attached to the main frame 22, a center frame 28, A pair of left and right pivot plates 37, 38 (only the reference numeral 37 on the front side) attached to 31 supports the power unit 43 including the engine 41 and the transmission 42 and supports the swing arm 45 so as to freely swing up and down. The vehicle supports the seat 16 and rear side guard members 46 and 47 provided on both sides of the rear portion with rails 23 and 24.
The fuel tank 13 incorporates a fuel pump device 48.

フロントフォーク３６は、左右一対のフォーク単体５１，５２（手前側の符号５１のみ示す。）をトップブリッジ５３及びこのトップブリッジ５３の下方に配置したボトムブリッジ５４で連結したものであり、トップブリッジ５３にバーハンドル１１及びハンドルロック装置５６を取付け、これらのトップブリッジ５３及びボトムブリッジ５４にカウル支持ステー５７を取付け、このカウル支持ステー５７でフロントカウル１２を支持するとともに、メータ５８、インナカウル６１、ウインカー支持ステー６２及びフロント用のナンバープレート６３を支持する。   The front fork 36 is formed by connecting a pair of left and right forks 51 and 52 (only the reference numeral 51 on the front side) by a top bridge 53 and a bottom bridge 54 disposed below the top bridge 53. The bar handle 11 and the handle lock device 56 are attached to the top bridge 53 and the bottom bridge 54. A cowl support stay 57 is attached to the top bridge 53 and the bottom bridge 54. The cowl support stay 57 supports the front cowl 12, and the meter 58, inner cowl 61, turn signal. The support stay 62 and the front license plate 63 are supported.

ここで、６５はフロントカウル１２に取付けたヘッドランプ、６６，６７（手前側の符号６６のみ示す。）はウインカー支持ステー６２の左右に取付けた左右一対のフロントウインカー、６８はフロントフォーク３６の下端に取付けた前輪、７１は前輪６８の上方を覆うフロントフェンダである。   Here, 65 is a headlamp attached to the front cowl 12, 66 and 67 (only the reference numeral 66 on the front side) is a pair of left and right front winkers attached to the left and right of the winker support stay 62, and 68 is a lower end of the front fork 36. Reference numeral 71 denotes a front fender that covers the upper portion of the front wheel 68.

収納ボックス１４は、メインフレーム２２とエンジン４１のシリンダ部７３との間に位置し、メインフレーム２２の下部にブラケット７４を介して取付けたものであって、開口を備えるケース７６及びその開口を塞ぐ蓋（不図示）とからなり、ケース７６から後方へ延ばした延長部７８で燃料タンク１３の下方側方が覆われ、更に、両側方がそれぞれ左カバー８１、右カバー（不図示）で覆われる。   The storage box 14 is located between the main frame 22 and the cylinder portion 73 of the engine 41 and is attached to the lower portion of the main frame 22 via a bracket 74, and closes the case 76 having an opening and the opening. The lower part of the fuel tank 13 is covered with an extension 78 extending rearward from the case 76, and further, both sides are covered with a left cover 81 and a right cover (not shown), respectively. .

シート１６は、後部下部に設けた差込み部をシートレール２３，２４側の係合部に係合させ、前部下部に設けた左右一対の取付け片８５，８６（手前側の符号８５のみ示す。）をシートレール２３，２４側にボルト止めした部材である。なお、８７はシートレール２３，２４の後部に取付けたグラブレールである。   The seat 16 has an insertion portion provided in the lower rear portion engaged with an engagement portion on the seat rail 23, 24 side, and a pair of left and right mounting pieces 85, 86 (only the reference numeral 85 on the front side is shown). ) Is bolted to the seat rails 23 and 24 side. Reference numeral 87 denotes a grab rail attached to the rear part of the seat rails 23 and 24.

ヘルメットホルダ１８は、後部側方ガード部材４６の上部に取付けたものであり、シート１６の後部に乗車した乗員の足の邪魔にならないように配置を考慮した施錠可能な部材である。なお、９１，９２（手前側の符号９１のみ示す。）はサブフレーム３２，３３から後方斜め下方に延ばしたバー部材であり、下端にシート１６の後部に着座した乗員のためのステップ９３，９４（手前側の符号９３のみ示す。）をそれぞれ取付けるとともに、フレーム側ステー９６を介して後部側方ガード部材４６の下部に連結したものである。   The helmet holder 18 is attached to the upper part of the rear side guard member 46, and is a lockable member considering the arrangement so as not to obstruct the feet of the passengers riding on the rear part of the seat 16. Reference numerals 91 and 92 (only the reference numeral 91 on the front side are shown) are bar members extending rearward and obliquely downward from the subframes 32 and 33, and steps 93 and 94 for passengers seated on the rear portion of the seat 16 at the lower ends. (Only the front side reference numeral 93 is shown) is attached, and is connected to the lower part of the rear side guard member 46 via the frame side stay 96.

エンジン４１は、シリンダ部７３に設けたシリンダヘッド１０１に吸気装置１０２及び排気装置１０３を取付けたものである。
吸気装置１０２は、シリンダヘッド１０１の上部に吸気管１０５を介して接続したスロットルボディ１０６と、このスロットルボディ１０６にコネクティングチューブ１０７を介して接続したエアクリーナ１０８とからなり、エアクリーナ１０８を、シートレール２３，２４、センタフレーム２８，３１及びサブフレーム３２，３３で囲まれる空間に配置したものである。 The engine 41 is obtained by attaching an intake device 102 and an exhaust device 103 to a cylinder head 101 provided in a cylinder portion 73.
The intake device 102 includes a throttle body 106 connected to the upper portion of the cylinder head 101 via an intake pipe 105, and an air cleaner 108 connected to the throttle body 106 via a connecting tube 107. The air cleaner 108 is connected to the seat rail 23. 24, center frames 28, 31 and sub-frames 32, 33.

ここで、１１１はエアクリーナ１０８の吸気口、１１２はバーハンドル１１に設けたスロットルグリップ（不図示）からスロットルボディ１０６へ延ばしたスロットルケーブル、１１３はバーハンドル１１に設けたクラッチレバーからパワーユニット４３へ延ばしたクラッチケーブル、１１４はエアクリーナ１０８の奥側に配置したバッテリである。   Here, 111 is an air inlet of the air cleaner 108, 112 is a throttle cable extending from a throttle grip (not shown) provided on the bar handle 11 to the throttle body 106, and 113 is extended from a clutch lever provided on the bar handle 11 to the power unit 43. A clutch cable 114 is a battery disposed on the back side of the air cleaner 108.

排気装置１０３は、シリンダヘッド１０１の下部に取付けた排気管１１５と、この排気管１１５の後端に取付けたマフラ１１６とからなり、マフラ１１６を奥側のバー部材９２及びバー部材９２の先端に取付けたマフラステー１１７を介して支持したものである。   The exhaust device 103 includes an exhaust pipe 115 attached to the lower part of the cylinder head 101 and a muffler 116 attached to the rear end of the exhaust pipe 115. The muffler 116 is attached to the rear bar member 92 and the tip of the bar member 92. It is supported via the attached muffler stay 117.

スイングアーム４５は、ピボットプレート３７，３８にピボット軸１２１を介して取付けた部材であり、後端部に後輪１２２及び左右一対のリヤクッションユニット１２３，１２３（手前側の符号１２３のみ示す。）のそれぞれの下端を取付けたものである。なお、リヤクッションユニット１２３の上端は、シートレール２３，２４にそれぞれ取付けたレール下部ブラケット１２５，１２５（手前側の符号１２５のみ示す。）に取付けられる。１２６はチェーンカバーである。
ピボットプレート３７，３８は、パワーユニット４３の上部及び後部を支持するためのパワーユニット支持部１３１〜１３３を設けた部材である。 The swing arm 45 is a member attached to the pivot plates 37 and 38 via the pivot shaft 121, and has a rear wheel 122 and a pair of left and right rear cushion units 123 and 123 at the rear end (only the reference numeral 123 on the front side is shown). The lower end of each is attached. The upper end of the rear cushion unit 123 is attached to rail lower brackets 125 and 125 (only the reference numeral 125 on the front side is shown) attached to the seat rails 23 and 24, respectively. 126 is a chain cover.
The pivot plates 37 and 38 are members provided with power unit support portions 131 to 133 for supporting the upper and rear portions of the power unit 43.

ここで、１３７はスタンド、１３８はシートレール２３，２４及びレール下部ブラケット１２５，１２５に取付けることで後輪１２２の上方を覆うリヤフェンダ、１４１，１４２（手前側の符号１４１のみ示す。）はリヤフェンダ１３８に設けたウインカーステー１４３に取付けた左右一対のリヤウインカー、１４４，１４６はリヤフェンダ１３８に取付けたリヤカバー及びテールランプである。   Here, 137 is a stand, 138 is a rear fender that covers the upper portion of the rear wheel 122 by being attached to the seat rails 23 and 24 and the rail lower brackets 125 and 125, and 141 and 142 (only the reference numeral 141 on the front side is shown). A pair of left and right rear winkers 144 and 146 attached to a winker stay 143 provided on the rear are a rear cover and a tail lamp attached to the rear fender 138.

図２は本発明に係る燃料タンク及びその周囲を示す断面図（図中の矢印（ＦＲＯＮＴ）は車両前方を表す。以下同じ。）であり、燃料タンク１３は、底面１５０を、車幅方向中央を前後に延びる第１底面１５１と、この第１側面１５１の車幅方向外側に設けた第２底面１５２，１５２（奥側の符号１５２のみ示す。）とから構成したものである。   FIG. 2 is a cross-sectional view showing the fuel tank and its surroundings according to the present invention (the arrow (FRONT in the figure represents the front of the vehicle; the same applies hereinafter)), and the fuel tank 13 has a bottom 150 at the center in the vehicle width direction. Is composed of a first bottom surface 151 extending in the front-rear direction and second bottom surfaces 152 and 152 (only the reference numeral 152 on the back side is shown) provided outside the first side surface 151 in the vehicle width direction.

第１底面１５１は、後下がりに形成した前部底面１５１ｆと、この前部底面１５１ｆの後端から後上がりに形成した後部底面１５１ｒとからなり、前部底面１５１ｆは、メインフレーム２２の上面２２ａにほぼ沿って前後に延びる部分であり、後部底面１５１ｒは燃料ポンプ装置４８を取付けた部分である。   The first bottom surface 151 includes a front bottom surface 151f formed to be rearwardly lowered and a rear bottom surface 151r formed to be rearwardly raised from the rear end of the front bottom surface 151f. The front bottom surface 151f is an upper surface 22a of the main frame 22. The rear bottom surface 151r is a portion to which the fuel pump device 48 is attached.

このように前部底面１５１ｆは後下がり、後部底面１５１ｒは前下がりの面であるから、前部底面１５１ｆと後部底面１５１ｒとの境部１５１ｂは第１底面１５１のうちの最も低い部分であり、燃料残量が少ないときに燃料が溜まりやすい部分である。
第２底面１５２，１５２はメインフレーム２２の左右にそれぞれ設けた部分である。 Thus, the front bottom surface 151f is rearwardly lowered, and the rear bottom surface 151r is a front lowering surface. Therefore, the boundary 151b between the front bottom surface 151f and the rear bottom surface 151r is the lowest part of the first bottom surface 151. This is a portion where fuel tends to accumulate when the remaining amount of fuel is low.
The second bottom surfaces 152 and 152 are portions provided on the left and right sides of the main frame 22, respectively.

燃料ポンプ装置４８の後部底面１５１ｒへの取付けは、後部底面１５１ｒに開けた開口部（不図示）に下からシール部材を介して燃料ポンプ装置４８を挿入し、燃料ポンプ装置４８に設けたフランジ部１８７（詳細は後述する。）に下から枠部材１５５を当てて押え付け、この枠部材１５５及び後部底面１５１ｒを貫通させた複数の取付ボルト１５６を後部底面１５１ｒの開口部の縁に設けた複数のナット部材１５７にねじ込んで、後部底面１５１ｒに燃料ポンプ装置４８を取付ける。   The fuel pump device 48 is attached to the rear bottom surface 151r by inserting the fuel pump device 48 into the opening (not shown) opened in the rear bottom surface 151r from below through a seal member, and a flange portion provided in the fuel pump device 48. A plurality of mounting bolts 156 penetrating through the frame member 155 and the rear bottom surface 151r are provided at the edge of the opening of the rear bottom surface 151r. The fuel pump device 48 is attached to the rear bottom surface 151r.

図中の１６１，１６２は燃料残量を検知するために燃料ポンプ装置４８に備えるフロート及びフロート支持ロッド、１６３はフィラーキャップ、１６４，１６４（奥側の符号１６１のみ示す。）は燃料タンク１３の前部をメインフレーム２２に取付ける左右一対の前部取付部、１６５は燃料タンク１３の後部をシートレール２３，２４（奥側の符号２４のみ示す。）側に取付ける後部取付部である。   In the figure, reference numerals 161 and 162 denote floats and float support rods provided in the fuel pump device 48 for detecting the remaining amount of fuel, 163 denotes a filler cap, and 164 and 164 (only reference numeral 161 on the back side) denotes the fuel tank 13. A pair of left and right front attachment portions for attaching the front portion to the main frame 22, and 165 are rear attachment portions for attaching the rear portion of the fuel tank 13 to the seat rails 23 and 24 (only reference numeral 24 on the back side).

図３は本発明に係る燃料ポンプ装置の斜視図である。
（ａ）は燃料ポンプ装置４８をほぼ正面から見た図であり、燃料ポンプ装置４８は、下部ケース１６７と、この下部ケース１６７の上部に取付けた上部ケース１６８とを備え、上部ケース１６８のほぼ中央に燃料ポンプ１７１を配置し、この燃料ポンプ１７１を囲むように下部ケース１６７に一体に起立壁１７２を備える。 FIG. 3 is a perspective view of the fuel pump device according to the present invention.
(A) is the figure which looked at the fuel pump apparatus 48 from the substantially front, The fuel pump apparatus 48 is provided with the lower case 167 and the upper case 168 attached to the upper part of this lower case 167, and the upper case 168 is substantially the same. A fuel pump 171 is disposed in the center, and a standing wall 172 is provided integrally with the lower case 167 so as to surround the fuel pump 171.

起立壁１７２は、燃料タンク内の燃料の残量が少なくなったときに、燃料を燃料ポンプ１７１の近傍にとどめて燃料をより有効に使用するために形成した部分である。なお、１７４は起立壁１７２の前部に形成した前部切欠きである。   The standing wall 172 is a portion formed so that when the remaining amount of fuel in the fuel tank decreases, the fuel is kept in the vicinity of the fuel pump 171 to use the fuel more effectively. Reference numeral 174 denotes a front notch formed in the front part of the upright wall 172.

（ｂ）は燃料ポンプ装置４８を右斜め後方から見た図であり、起立壁１７２の後部斜め左部及び後部斜め右部に後部切欠き１７６，１７７を形成し、起立壁１７２を、前部起立壁１８１と後部起立壁１８２とに分離させたことを示す。
後部切欠き１７６，１７７は、燃料が起立壁１７２内により入り易くする部分である。 (B) is the figure which looked at the fuel pump apparatus 48 from diagonally right rear, rear notch 176,177 is formed in the rear diagonal left part and rear diagonal right part of standing wall 172, and standing wall 172 is made into front part This shows that the upright wall 181 and the rear upright wall 182 are separated.
The rear notches 176 and 177 are portions that make it easier for fuel to enter the upright wall 172.

図４は本発明に係る燃料ポンプ装置の平面図であり、前部起立壁１８１（輪郭を太線で示した部分である。）及び後部起立壁１８２（輪郭を太線で示した部分である。）は、車両前後方向に延びる中心線１８５に対して左右対称な部分であり、従って、後部切欠き１７６，１７７も中心線１８５に対して左右対称である。但し、前部切欠き１７４は、その中心が中心線１８５に対して左側に寄った部分にある。なお、１８７は燃料タンクに取付けるために下部ケース１６７に一体に形成したフランジ部であり、１８７ａはフランジ部１８７の周壁、複数の１８７ｂは円弧状起立部である。   FIG. 4 is a plan view of the fuel pump device according to the present invention, wherein the front standing wall 181 (the outline is indicated by a bold line) and the rear standing wall 182 (the outline is indicated by a thick line). Is a portion symmetrical with respect to the center line 185 extending in the vehicle front-rear direction, and therefore the rear notches 176 and 177 are also symmetrical with respect to the center line 185. However, the front notch 174 is at a portion whose center is shifted to the left side with respect to the center line 185. Reference numeral 187 denotes a flange portion formed integrally with the lower case 167 so as to be attached to the fuel tank, 187a is a peripheral wall of the flange portion 187, and a plurality of 187b are arc-like standing portions.

図５は図４の５矢視図であり、燃料ポンプ装置４８の前部起立壁１８１に、前部切欠き１７４の下方に位置する横長の開口部１９１を開けたことを示す。
開口部１９１は、燃料ポンプ装置４８の前方から前部起立壁１８１の内側に、より一層燃料が入りやすくするための部分である。 FIG. 5 is a view taken in the direction of the arrow 5 in FIG. 4 and shows that a horizontally long opening 191 located below the front notch 174 is opened in the front standing wall 181 of the fuel pump device 48.
The opening 191 is a part for making it easier for fuel to enter the front standing wall 181 from the front of the fuel pump device 48.

図６は図４の６矢視図であり、燃料ポンプ装置４８は、上部に燃料残量計ユニット１９５を一体的に備え、下部に燃料を吐出する吐出口１９６及び燃料ポンプ１７１（図３（ａ）参照）に一体的に備える電動モータ（不図示）に通電するためのコネクタ１９７を備える。   6 is a view taken in the direction of the arrow 6 in FIG. 4. The fuel pump device 48 is integrally provided with a fuel remaining amount meter unit 195 in the upper part, and a discharge port 196 and a fuel pump 171 for discharging fuel in the lower part (FIG. 3 ( a) a connector 197 for energizing an electric motor (not shown) provided integrally with a).

図７は図４の７−７線断面図であり、燃料ポンプ装置４８は、下部ケース１６７と、上部ケース１６８と、電動モータを備える燃料ポンプ１７１と、この燃料ポンプ１７１の下部に設けた燃料吸込み口２００に接続管２０１を介して接続したストレーナ２０２とからなる。   7 is a cross-sectional view taken along line 7-7 of FIG. 4. The fuel pump device 48 includes a lower case 167, an upper case 168, a fuel pump 171 including an electric motor, and a fuel provided at the lower portion of the fuel pump 171. The strainer 202 is connected to the suction port 200 via a connection pipe 201.

下部ケース１６７は、ストレーナ２０２を収納する凹部２０５と、燃料を流すために下部筒状部２０６に開けた下部通路２０７と、この下部通路２０７に連通するように吐出口１９６に開けた吐出通路２０８とを備える。   The lower case 167 includes a recess 205 for storing the strainer 202, a lower passage 207 opened in the lower cylindrical portion 206 for flowing fuel, and a discharge passage 208 opened in the discharge port 196 so as to communicate with the lower passage 207. With.

上部ケース１６８は、燃料ポンプ１７１を収納する上部第１筒状部２１１と、燃料ポンプ１７１の燃料吐出口２１２に連通する上部横通路２１３と、この上部横通路２１３に連通するように上部第２筒状部２１４に開けるとともに下部通路２０７に接続させた上部縦通路２１６とを備える。なお、２２１は上部横通路２１３の端部開口を塞ぐキャップ、２２２はキャップ２２１を上部ケース１６８に固定するクリップ、２２４〜２２６はＯリングである。   The upper case 168 includes an upper first cylindrical portion 211 that houses the fuel pump 171, an upper lateral passage 213 that communicates with the fuel discharge port 212 of the fuel pump 171, and an upper second passage that communicates with the upper lateral passage 213. An upper vertical passage 216 opened to the tubular portion 214 and connected to the lower passage 207 is provided. Reference numeral 221 denotes a cap that closes the end opening of the upper lateral passage 213, 222 denotes a clip that fixes the cap 221 to the upper case 168, and 224 to 226 denote O-rings.

凹部２０５の底部２０５ａは、後部切欠き１７６，１７７（奥側の符号１７７のみ示す。）の底部１７６ａ，１７７ａ（手前側の符号１７７ａのみ示す。）よりも低い位置にあり、これによって、凹部２０５に溜まった燃料は後部切欠き１７６，１７７及び開口部１９１から流出しにくい。   The bottom 205a of the recess 205 is located at a position lower than the bottoms 176a and 177a (only the front side 177a is shown) of the rear notches 176 and 177 (only the back side reference 177 is shown). The fuel accumulated in the gas does not easily flow out from the rear notches 176 and 177 and the opening 191.

後部切欠き１７６，１７７は、その底部１７６ａ，１７７ａを後部底面１５１ｒの上面１５１ｕとほぼ同じ高さに設けた部分である。
開口部１９１は、後部底面１５１ｒの上面１５１ｕよりも高さＨだけ高い位置にあり、この高さＨを小さくしたことで、燃料残量が少ないときに開口部１９１から容易に凹部２０５内に燃料を流入させることができる。 The rear notches 176 and 177 are portions where the bottom portions 176a and 177a are provided at substantially the same height as the upper surface 151u of the rear bottom surface 151r.
The opening 191 is at a position higher than the upper surface 151u of the rear bottom surface 151r by a height H. By reducing the height H, the fuel can easily enter the recess 205 from the opening 191 when the remaining amount of fuel is small. Can be introduced.

下部ケース１６７の凹部２０５に溜まった燃料は、ストレーナ２０３→燃料ポンプ１７１→上部横通路２１３→上部縦通路２１６→吐出通路２０８と流れ、図示せぬ燃料配管を通じて燃料噴射弁に供給され、燃料噴射弁でスロットルボディ内、吸気ポート内に噴射され、エンジンの燃焼室に至る。   The fuel accumulated in the recess 205 of the lower case 167 flows through the strainer 203 → the fuel pump 171 → the upper horizontal passage 213 → the upper vertical passage 216 → the discharge passage 208, and is supplied to the fuel injection valve through a fuel pipe (not shown). The fuel is injected into the throttle body and the intake port by the valve and reaches the combustion chamber of the engine.

以上に述べた燃料ポンプ装置４８の作用を次に説明する。
図８（ａ），（ｂ）は本発明に係る燃料ポンプ装置の作用を示す作用図である。
（ａ）において、燃料２３０が、例えば、起立壁１７２よりも低い位置、特に前部起立壁１８１の前部切欠き１７４よりも低い位置に溜まった状態でも、燃料２３０は、矢印Ａで示すように、前部起立壁１８１の開口１９１から下部ケース１６７の凹部２０５へ容易に流入し、また、矢印Ｂで示すように、後部切欠き１７６，１７７（奥側の符号１７７のみ示す。）からも、凹部２０５内に容易に流入する。 Next, the operation of the fuel pump device 48 described above will be described.
8A and 8B are operation diagrams showing the operation of the fuel pump device according to the present invention.
In (a), the fuel 230 is indicated by an arrow A even when the fuel 230 is accumulated at a position lower than the standing wall 172, particularly at a position lower than the front notch 174 of the front standing wall 181. In addition, it easily flows into the recess 205 of the lower case 167 from the opening 191 of the front standing wall 181 and, as indicated by the arrow B, from the rear notches 176 and 177 (only the rear side reference numeral 177 is shown). , Easily flows into the recess 205.

例えば、車両が加速して残留燃料が後方へ移動する場合には、ほぼ車両前方に開口する開口部１９１から燃料が、矢印Ａのように、より一層凹部２０５内に流入しやすくなる。このとき、後部起立壁１８２によって、凹部２０５内に溜まった燃料は、起立壁１７２外に流出しにくい。従って、車両が前後に振れても燃料２３０を凹部２０５内に保持しやすくすることができ、残った燃料２３０を有効に使用することができる。   For example, when the vehicle accelerates and the residual fuel moves rearward, the fuel is more likely to flow into the recess 205 as shown by the arrow A from the opening 191 that opens to the front of the vehicle. At this time, the fuel accumulated in the recess 205 by the rear standing wall 182 is unlikely to flow out of the standing wall 172. Therefore, even if the vehicle swings back and forth, the fuel 230 can be easily held in the recess 205, and the remaining fuel 230 can be used effectively.

（ｂ）において、例えば、車両が左右に揺れたときには、矢印Ｃ又は矢印Ｄに示しように、後部切欠き１７６，１７７から凹部２０５内に燃料が流入しやすく、このときに、後部切欠き１７６，１７７の底部１７６ａ，１７７ａよりも凹部２０５の底部２０５ａが低いことで、凹部２０５内に溜まった燃料は後部切欠き１７６，１７７から流出しにくいから、（ａ）の場合と同様に、残った燃料２３０を有効に使用することができる。   In (b), for example, when the vehicle swings left and right, as shown by the arrow C or arrow D, the fuel easily flows into the recess 205 from the rear notches 176 and 177. At this time, the rear notch 176 Since the bottom 205a of the recess 205 is lower than the bottoms 176a and 177a of the 177, the fuel accumulated in the recess 205 is unlikely to flow out from the rear notches 176 and 177, and thus remains as in the case of (a). The fuel 230 can be used effectively.

以上の図２及び図８（ａ），（ｂ）に示したように、本発明は第１に、燃料タンク１３の底面１５０に設けた燃料ポンプ１７１と、この燃料ポンプ１７１を囲む起立壁１７２とを備えた燃料供給装置としての燃料ポンプ装置４８において、燃料タンク１３の前部の底面１５１ｆを、車両後方に向かって斜め下がりに傾斜させ、燃料タンク１３の後部の底面１５１ｒを、車両後方に向かって斜め上がりに傾斜させ、燃料ポンプ１７１を、燃料タンク１３後部の底面１５１ｒに設け、起立壁１７２に、燃料タンク１３の前部の底面１５１ｆに向けて開口する第一開口部としての開口部１９１を設けたことを特徴とする。   As shown in FIG. 2 and FIGS. 8A and 8B above, the present invention firstly includes a fuel pump 171 provided on the bottom surface 150 of the fuel tank 13 and an upright wall 172 surrounding the fuel pump 171. In the fuel pump device 48 as a fuel supply device including the fuel tank device 13, the bottom surface 151 f of the front portion of the fuel tank 13 is inclined obliquely downward toward the rear of the vehicle, and the bottom surface 151 r of the rear portion of the fuel tank 13 is disposed rearward of the vehicle. The fuel pump 171 is provided on the bottom surface 151r of the rear portion of the fuel tank 13, and the opening as a first opening that opens to the standing wall 172 toward the bottom surface 151f of the front portion of the fuel tank 13. 191 is provided.

第一開口部１９１を、燃料タンク１３の前部の底面１５１ｆと後部の底面１５１ｒとの境部１５１ｂ付近、即ち第１底面１５１の最も低い位置の近傍に向けて開口させることができ、燃料タンク１３内の燃料２３０を開口部１９１を介して燃料ポンプ１７１に取込みやすくすることができ、燃料２３０を有効に使用することできる。また、車体が車両前後方向に揺れたとき、特に発進、あるいは、加速したときに、開口部１９１を介して燃料２３０を起立壁１７２内に流入しやすくすることができ、この場合も、燃料２３０を有効に使用することができる。   The first opening 191 can be opened near the boundary 151b between the front bottom surface 151f and the rear bottom surface 151r of the fuel tank 13, that is, near the lowest position of the first bottom surface 151. 13 can be easily taken into the fuel pump 171 through the opening 191 and the fuel 230 can be used effectively. Further, when the vehicle body shakes in the vehicle longitudinal direction, particularly when starting or accelerating, the fuel 230 can easily flow into the upright wall 172 through the opening 191. Can be used effectively.

本発明は第２に、起立壁１７２の後部斜め側部に、燃料タンク１３のほぼ底面１５１ｒの高さに開口する第二開口部としての後部切欠き１７６，１７７を設けたことを特徴とする。   Secondly, the present invention is characterized in that rear cutouts 176 and 177 are provided on the oblique rear side of the upright wall 172 as second openings that open to substantially the bottom surface 151r of the fuel tank 13. .

車体が左右に振れたとき、例えば、左右に旋回したときに、後部切欠き１７６，１７７によって燃料２３０を起立壁１７２内部に取込みやすくすることができるとともに、起立壁１７２の後部、即ち、後部起立壁１８２で起立壁１７２の内側の燃料２３０を保持しやすくすることができ、燃料２３０を有効に使用することできる。   When the vehicle body swings left and right, for example, when turning left and right, the rear notches 176 and 177 can make it easy to take the fuel 230 into the upright wall 172, and the rear of the upright wall 172, that is, the rear upright The wall 182 can easily hold the fuel 230 inside the standing wall 172, and the fuel 230 can be used effectively.

尚、本実施形態では、図５に示したように、起立壁１７２の前部に開口部１９１を設けたが、これに限らず、開口部１９１を設ける代わりに、前部切欠き１７４の下端位置を開口部１９１まで下げたものでもよい。   In the present embodiment, as shown in FIG. 5, the opening 191 is provided in the front part of the upright wall 172, but this is not limiting, and instead of providing the opening 191, the lower end of the front notch 174 is provided. The position may be lowered to the opening 191.

また、図３（ｂ）に示したように、起立壁１７２の後部斜め側部に後部切欠き１７６，１７７を設けたが、これに限らず、後部切欠き１７６，１７７の代わりに、穴状の開口部を設けてもよい。   In addition, as shown in FIG. 3B, the rear notches 176 and 177 are provided on the oblique rear side of the upright wall 172. However, the present invention is not limited to this, and instead of the rear notches 176 and 177, holes are formed. May be provided.

本発明の燃料供給装置は、二輪車に好適である。   The fuel supply device of the present invention is suitable for a motorcycle.

本発明に係る燃料供給装置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 supply device according to the present invention. 本発明に係る燃料タンク及びその周囲を示す断面図である。It is sectional drawing which shows the fuel tank which concerns on this invention, and its periphery. 本発明に係る燃料ポンプ装置の斜視図である。1 is a perspective view of a fuel pump device according to the present invention. 本発明に係る燃料ポンプ装置の平面図である。It is a top view of the fuel pump device concerning the present invention. 図４の５矢視図である。FIG. 5 is a view taken in the direction of arrow 5 in FIG. 4. 図４の６矢視図である。FIG. 6 is a view taken in the direction of arrow 6 in FIG. 4. 図４の７−７線断面図である。FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 4. 本発明に係る燃料ポンプ装置の作用を示す作用図である。It is an operation view showing an operation of the fuel pump device according to the present invention.

符号の説明Explanation of symbols

１３…燃料タンク、４８…燃料供給装置（燃料ポンプ装置）、１５０…底面、１５１ｆ…燃料タンクの前部の底面（前部底面）、１５１ｒ…燃料タンクの後部の底面（後部底面）、１７２…起立壁、１７６，１７７…第二開口部（後部切欠き）、１９１…第一開口部（開口部）。   DESCRIPTION OF SYMBOLS 13 ... Fuel tank, 48 ... Fuel supply apparatus (fuel pump apparatus), 150 ... Bottom face, 151f ... Bottom face of front part of fuel tank (front bottom face), 151r ... Bottom face of fuel tank rear part (rear bottom face), 172 ... Standing wall, 176, 177 ... second opening (rear notch), 191 ... first opening (opening).

Claims (2)

燃料タンクの底面に設けた燃料ポンプと、この燃料ポンプを囲む起立壁とを備えた燃料供給装置において、
前記燃料タンクの前部の前記底面は、車両後方に向かって斜め下がりに傾斜し、前記燃料タンクの後部の前記底面は、車両後方に向かって斜め上がりに傾斜し、前記燃料ポンプは、前記燃料タンクの後部の前記底面に設けられ、
前記起立壁は、前記燃料タンク前部の前記底面に向けて開口する第一開口部が設けられることを特徴とする燃料供給装置。 In a fuel supply device comprising a fuel pump provided on the bottom surface of the fuel tank and an upright wall surrounding the fuel pump,
The bottom surface of the front portion of the fuel tank is inclined obliquely downward toward the rear of the vehicle, the bottom surface of the rear portion of the fuel tank is inclined obliquely upward toward the vehicle rear, and the fuel pump Provided on the bottom surface of the rear of the tank,
The fuel supply device according to claim 1, wherein the standing wall is provided with a first opening that opens toward the bottom surface of the front portion of the fuel tank. 前記起立壁の後部斜め側部に、前記燃料タンクのほぼ底面の高さに開口する第二開口部を設けたことを特徴とする請求項１記載の燃料供給装置。   2. The fuel supply device according to claim 1, wherein a second opening that opens to a height substantially at the bottom of the fuel tank is provided on the rear oblique side of the standing wall.
JP2005317039A 2005-10-31 2005-10-31 Fuel supply device Active JP4563920B2 (en)

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JP2005317039A JP4563920B2 (en) 2005-10-31 2005-10-31 Fuel supply device
CNB200610142845XA CN100497074C (en) 2005-10-31 2006-10-27 Fuel supplying device

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WO2012056805A1 (en) * 2010-10-29 2012-05-03 株式会社ケーヒン Fuel supply unit
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JP2016113958A (en) * 2014-12-15 2016-06-23 本田技研工業株式会社 Seal structure of fuel pump unit
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JP2007247598A (en) * 2006-03-17 2007-09-27 Keihin Corp Fuel supply device for motorcycle
JP2012012965A (en) * 2010-06-29 2012-01-19 Honda Motor Co Ltd Fuel supply device
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JP2016113958A (en) * 2014-12-15 2016-06-23 本田技研工業株式会社 Seal structure of fuel pump unit
JP7134293B1 (en) 2021-04-27 2022-09-09 三菱電機株式会社 fuel supply
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