JP2003161218A - Fuel supply unit - Google Patents
Fuel supply unitInfo
- Publication number
- JP2003161218A JP2003161218A JP2001356685A JP2001356685A JP2003161218A JP 2003161218 A JP2003161218 A JP 2003161218A JP 2001356685 A JP2001356685 A JP 2001356685A JP 2001356685 A JP2001356685 A JP 2001356685A JP 2003161218 A JP2003161218 A JP 2003161218A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- bracket plate
- lower bracket
- support rods
- supply unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 156
- 239000002828 fuel tank Substances 0.000 claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 abstract 1
- 230000001788 irregular Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は,自動二輪車等の小
型車両に好適な燃料供給ユニットに関し,特に,燃料タ
ンクに,それに設けられた開口部を閉鎖するように取り
付けられる上部ブラケット板に,この上部ブラケット板
から前記開口部を通して燃料タンク内に垂下する3本の
支持杆を介して下部ブラケット板を連結し,この下部ブ
ラケット板上に燃料タンク内の燃料を汲み上げる燃料ポ
ンプを取り付けてなる燃料供給ユニットの改良に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel supply unit suitable for a small vehicle such as a motorcycle, and more particularly to an upper bracket plate attached to a fuel tank so as to close an opening provided in the fuel tank. A fuel supply in which a lower bracket plate is connected through three supporting rods hanging from the upper bracket plate through the opening into the fuel tank, and a fuel pump for pumping the fuel in the fuel tank is mounted on the lower bracket plate. Regarding the improvement of the unit.
【0002】[0002]
【従来の技術】かゝる燃料供給ユニットは,例えば特開
平9−53537号公報に開示されているように,既に
知られている。2. Description of the Related Art Such a fuel supply unit is already known, for example, as disclosed in Japanese Patent Laid-Open No. 9-53537.
【0003】[0003]
【発明が解決しようとする課題】上記公報に開示されて
いる燃料供給ユニットでは,3本の支持杆の内接円内に
燃料ポンプを配置しているので,相隣る支持杆の間にデ
ッドスペースが多くできてしまい,スペース効率が低
い。In the fuel supply unit disclosed in the above publication, since the fuel pump is arranged within the inscribed circle of the three support rods, there is a dead gap between the adjacent support rods. There is a lot of space, and space efficiency is low.
【0004】本発明は,かゝる事情に鑑みてなされたも
ので,スペース効率が高く,コンパクトで,小型車両に
も有効に適用し得る前記燃料供給ユニットを提供するこ
とを目的とする。The present invention has been made in view of the above circumstances, and an object thereof is to provide the fuel supply unit which has high space efficiency, is compact, and can be effectively applied to small vehicles.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するため
に,本発明は,燃料タンクに,それに設けられた開口部
を閉鎖するように取り付けられる上部ブラケット板に,
この上部ブラケット板から前記開口部を通して燃料タン
ク内に垂下する3本の支持杆を介して下部ブラケット板
を連結し,この下部ブラケット板上に燃料タンク内の燃
料を汲み上げる燃料ポンプを取り付けてなる,燃料供給
ユニットにおいて,3本の支持杆を下部ブラケット板と
の同心円上に,各支持杆の隣接間隔を不等にして配置
し,支持杆の隣接間隔の最も狭い箇所で燃料ポンプを下
部ブラケット板上に設置し,支持杆の隣接間隔の最も広
い箇所で燃料ポンプの吐出燃料を濾過する燃料フィルタ
を下部ブラケット板上に設置したことを第1の特徴とす
る。In order to achieve the above object, the present invention provides an upper bracket plate attached to a fuel tank so as to close an opening provided in the fuel tank.
A lower bracket plate is connected to the upper bracket plate through three openings through the opening into the fuel tank, and a fuel pump for pumping the fuel in the fuel tank is mounted on the lower bracket plate. In the fuel supply unit, the three support rods are arranged concentrically with the lower bracket plate and the adjacent support rods are arranged at unequal intervals, and the fuel pump is attached to the lower bracket plate at the narrowest space between the adjacent support rods. The first feature is that the fuel filter is installed on the lower bracket plate and is installed on the lower bracket plate to filter the fuel discharged from the fuel pump at a position where the support rod has the widest interval.
【0006】この第1の特徴によれば,支持杆の隣接間
隔の最も狭い箇所で燃料ポンプを下部ブラケット板上に
設置したことで,燃料供給ユニット中,比較的小径であ
るが最重量物の燃料ポンプを,その両側に近接する2本
の支持杆により確実に支持させて,燃料ポンプによる下
部ブラケット板の曲げモーメントを軽減し,下部ブラケ
ット板の薄肉化,延いては軽量化を図ることができる。
また支持杆の隣接間隔の最も広い箇所には燃料フィルタ
を配設したことで,比較的大容量の燃料フィルタの設置
が可能となり,流路抵抗を下げつゝ,多量の燃料の濾過
処理を行うことができる。しかも支持杆の相互間のスペ
ースが燃料ポンプ及び燃料フィルタの設置に利用される
ことで,下部ブラケット板上のデッドスペースが少なく
なり,スペース効率の向上,延いては燃料供給ユニット
のコンパクト化を図ることができる。According to the first feature, the fuel pump is installed on the lower bracket plate at the position where the support rods have the narrowest adjacent intervals. The fuel pump can be reliably supported by the two support rods on both sides of the fuel pump, and the bending moment of the lower bracket plate due to the fuel pump can be reduced, and the lower bracket plate can be made thinner and thus lighter in weight. it can.
In addition, by disposing the fuel filter at the widest interval between the support rods, it is possible to install a relatively large capacity fuel filter, reduce the flow path resistance, and filter a large amount of fuel. be able to. Moreover, the space between the support rods is used for installing the fuel pump and the fuel filter, so that the dead space on the lower bracket plate is reduced, the space efficiency is improved, and the fuel supply unit is made compact. be able to.
【0007】また本発明は,第1の特徴に加えて,残余
の支持杆の間で下部ブラケット板上に燃料残量センサを
設置したことを第2の特徴とする。In addition to the first characteristic, the present invention has a second characteristic that a fuel remaining amount sensor is installed on the lower bracket plate between the remaining supporting rods.
【0008】この第2の特徴によれば,残る支持杆の間
に燃料残量センサを配設したことで,全ての支持杆相互
間からデッドスペースを排除して,スペース効率を更に
高め,燃料供給ユニットのコンパクト化を効果的に図る
ことができる。According to the second feature, by disposing the remaining fuel amount sensor between the remaining supporting rods, dead spaces are eliminated from all the supporting rods, so that space efficiency is further enhanced and the fuel efficiency is improved. It is possible to effectively reduce the size of the supply unit.
【0009】さらに本発明は,第1又は第2の特徴に加
えて,燃料フィルタを,下部ブラケット板の周縁に沿っ
た断面扇形に形成したことを第3の特徴とする。Further, in addition to the first or second feature, the present invention has a third feature in that the fuel filter is formed in a fan shape in cross section along the peripheral edge of the lower bracket plate.
【0010】この第3の特徴によれば,支持杆の隣接間
隔の最も広いスペースをより有効に利用して,より大容
量の燃料フィルタを採用することができる。According to the third feature, it is possible to more effectively utilize the widest space between the support rods adjacent to each other and to employ a fuel filter having a larger capacity.
【0011】[0011]
【発明の実施の形態】本発明の実施の形態を,添付図面
に示す本発明の一実施例に基づいて以下に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below based on an embodiment of the present invention shown in the accompanying drawings.
【0012】図1は本発明の燃料供給ユニットを備える
自動二輪車の側面図,図2は図1の2矢視拡大図,図3
は図2 の3−3線断面図,図4は図2 の4−4線断面
図,図5は図4の5−5線断面図,図6は図4の6−6
線断面図,図7は燃料供給ユニットにおける燃料フィル
タの縦断面図,図8は図7の8−8線断面図,図9は図
2の9−9線断面図である。FIG. 1 is a side view of a motorcycle equipped with the fuel supply unit of the present invention, FIG. 2 is an enlarged view of FIG.
Is a sectional view taken along line 3-3 of FIG. 2, FIG. 4 is a sectional view taken along line 4-4 of FIG. 2, FIG. 5 is a sectional view taken along line 5-5 of FIG. 4, and FIG.
7 is a vertical sectional view of the fuel filter in the fuel supply unit, FIG. 8 is a sectional view taken along line 8-8 of FIG. 7, and FIG. 9 is a sectional view taken along line 9-9 of FIG.
【0013】先ず,図1において,符号1は小型車両と
してのスクータ型自動二輪車を示し,それのボディフレ
ーム2は,ヘッドパイプ2a,このヘッドパイプ2aの
後面から急角度で下方へ延びるダウンチューブ部2b,
このダウンチューブ部2bの下端から後方へ水平に延び
るフロワ支持部2c,このフロワ支持部2cの後端から
垂直に立ち上がるピラー部2d及び,このピラー部2d
の上端から後方上向きに傾斜して延びるリアレール部2
eとからなっており,ヘッドパイプ2aには,前輪3f
を軸支するフロントフォーク4のステアリングステムが
操向可能に支承される。またピラー部2dの上端部には
懸架リンク5が弾性支持され,この懸架リンク5にパワ
ーユニット6が枢軸7を介して上下揺動可能に懸架され
る。そしてパワーユニット6及びリアレール部2e間に
リアクッション8が取り付けられる。First, in FIG. 1, reference numeral 1 denotes a scooter type motorcycle as a small vehicle, the body frame 2 of which is a head pipe 2a, and a down tube portion extending downward from the rear surface of the head pipe 2a at a steep angle. 2b,
A floor support portion 2c horizontally extending rearward from the lower end of the down tube portion 2b, a pillar portion 2d vertically rising from the rear end of the floor support portion 2c, and the pillar portion 2d.
Rear rail part 2 extending rearward and upward from the upper end of the
and the front pipe 3f on the head pipe 2a.
A steering fork of a front fork 4 which pivotally supports is supported so as to be steerable. A suspension link 5 is elastically supported on the upper end of the pillar portion 2d, and a power unit 6 is suspended on the suspension link 5 via a pivot 7 so as to be vertically swingable. Then, the rear cushion 8 is attached between the power unit 6 and the rear rail portion 2e.
【0014】パワーユニット6は,シリンダ部9aを水
平状態に近く前傾させたエンジン9と,このエンジン9
の一側部に,後方へ延びるミッションケース10aを一
体的に連ねる無段変速機10とからなっており,そのミ
ッションケース10aの後端部に駆動輪たる後輪3rが
軸支される。The power unit 6 includes an engine 9 in which a cylinder portion 9a is tilted forward in a nearly horizontal state, and the engine 9
A continuously variable transmission 10 integrally connecting a rearwardly extending mission case 10a to one side of the transmission case 10a, and a rear wheel 3r, which is a drive wheel, is pivotally supported at the rear end of the mission case 10a.
【0015】リアレール部2e上には,ヘルメット等の
大型の荷物の収納を可能にするラゲッジボックス15が
取り付けられ,このラゲッジボックス15の上部前端部
に,該ボックス15のリッドを兼ねる乗員用シート16
が開閉可能にヒンジ結合される。。A luggage box 15 is mounted on the rear rail portion 2e for accommodating a large luggage such as a helmet. An upper front end of the luggage box 15 has a passenger seat 16 which also serves as a lid of the box 15.
Is hinged so that it can be opened and closed. .
【0016】図2及び図3に示すように,フロワ支持部
2cの中央部に設けられた大きな開口部17に燃料タン
ク18が挿入されると共に,この燃料タンク18の周壁
から張り出したフランジ18aがフロワ支持部2cの上
面に複数のボルト19によって固定される。この燃料タ
ンク18の略水平に配置される天井壁18bには,そこ
に開口する給油口20を開閉するタンクキャップ21
と,燃料をエンジン9に供給する燃料供給ユニット22
とが取り付けられる。その際,燃料供給ユニット22
は,燃料タンク18の前部,即ちタンクキャップ21よ
り前方寄りの箇所に配置される。As shown in FIGS. 2 and 3, the fuel tank 18 is inserted into a large opening 17 provided at the center of the floor support portion 2c, and the flange 18a protruding from the peripheral wall of the fuel tank 18 is provided. It is fixed to the upper surface of the floor support portion 2c by a plurality of bolts 19. On the ceiling wall 18b of the fuel tank 18 which is arranged substantially horizontally, a tank cap 21 for opening and closing a fuel filler port 20 opening there is provided.
And a fuel supply unit 22 for supplying fuel to the engine 9.
And are attached. At that time, the fuel supply unit 22
Are arranged at the front of the fuel tank 18, that is, at a position closer to the front than the tank cap 21.
【0017】フロワ支持部2cに支持されるステップフ
ロワ12は,この燃料タンク18を覆うように配置さ
れ,その中央部に形成された上方***部12a内に,タ
ンクキャップ21や燃料供給ユニット22の,燃料タン
ク18上面からの突出部が収容される。The step floor 12 supported by the floor supporting portion 2c is disposed so as to cover the fuel tank 18, and the tank cap 21 and the fuel supply unit 22 are provided in the upper protruding portion 12a formed at the center thereof. The projecting portion from the upper surface of the fuel tank 18 is accommodated.
【0018】さて,燃料供給ユニット22について,図
4〜図9を参照しながら詳細に説明する。Now, the fuel supply unit 22 will be described in detail with reference to FIGS. 4 to 9.
【0019】図4〜図6において,燃料タンク18の天
井壁には,それに設けられた開口部23を閉鎖するよう
に上部ブラケット板31がねじ止めされる。この上部ブ
ラケット板31と,それから開口部23を通して燃料タ
ンク18内に垂下する3本の支持杆33,33,33を
介して連結される下部ブラケット板32との間に,燃料
タンク18内の燃料を汲み上げるべくその燃料油中に浸
漬配置される電動式の燃料ポンプ25,この燃料ポンプ
25の吸入口25aに接続される燃料ストレーナ26,
燃料ポンプ25の吐出口25bに連通する燃料フィルタ
27,燃料ポンプ25の吐出圧を調整する圧力レギュレ
ータ28及び燃料残量センサ29が取り付けられ,こう
して燃料供給ユニット22は構成される。4 to 6, an upper bracket plate 31 is screwed to the ceiling wall of the fuel tank 18 so as to close the opening 23 provided therein. Between the upper bracket plate 31 and the lower bracket plate 32, which is connected via three support rods 33, 33, 33 hanging from the upper bracket plate 31 into the fuel tank 18 through the opening 23, the fuel in the fuel tank 18 is An electric fuel pump 25 that is immersed in the fuel oil to pump up the fuel, a fuel strainer 26 connected to an intake port 25a of the fuel pump 25,
A fuel filter 27 that communicates with the discharge port 25b of the fuel pump 25, a pressure regulator 28 that adjusts the discharge pressure of the fuel pump 25, and a fuel remaining amount sensor 29 are attached, and thus the fuel supply unit 22 is configured.
【0020】上部及び下部ブラケット板31,32は,
何れも合成樹脂製で円形をなしているが,下部ブラケッ
ト板32は,燃料タンク18の開口部23を通過し得る
ように,その開口部23より小径に形成されている。上
部ブラケット板31の下面には,開口部23を囲繞して
燃料タンク18の天井壁に密接する環状のシール部材3
4が嵌め込まれ,またこのシール部材34の内側で上部
ブラケット板31に一体成形された3個の連結ボス31
a,31a,31aに3本の支持杆33,33,33の
上端部がモールド結合され,これら支持杆33,33,
33の下端部は,下部ブラケット板32の3個の連結孔
32a,32a,32aに嵌挿されて,クリップ35,
35,35により下部ブラケット板32に固定される。The upper and lower bracket plates 31, 32 are
Both of them are made of synthetic resin and have a circular shape, but the lower bracket plate 32 is formed to have a smaller diameter than the opening 23 of the fuel tank 18 so that the lower bracket plate 32 can pass through the opening 23. On the lower surface of the upper bracket plate 31, an annular seal member 3 that surrounds the opening 23 and closely contacts the ceiling wall of the fuel tank 18.
4 is fitted and three connecting bosses 31 integrally formed with the upper bracket plate 31 inside the seal member 34.
The upper ends of the three support rods 33, 33, 33 are mold-bonded to a, 31a, 31a.
The lower end of 33 is fitted into the three connecting holes 32a, 32a, 32a of the lower bracket plate 32, and the clip 35,
It is fixed to the lower bracket plate 32 by 35, 35.
【0021】その際,3本の支持杆33,33,33
は,下部ブラケット板32との同心円C(図6及び図8
参照)上に,各支持杆33,33,33の隣接間隔を不
等にして配置される。そして,燃料ポンプ25は支持杆
33,33,33の隣接間隔の最も狭い箇所に,また燃
料フィルタ27は支持杆33,33,33の隣接間隔の
最も広い箇所に,燃料残量センサ29は残余の支持杆3
3,33の間にそれぞれ配設される。At this time, the three support rods 33, 33, 33
Is a concentric circle C with the lower bracket plate 32 (see FIGS. 6 and 8).
(Refer to FIG. 3), the support rods 33, 33, 33 are arranged above each other with unequal intervals. The fuel pump 25 is located at the narrowest space between the support rods 33, 33, 33, the fuel filter 27 is located at the widest space between the support rods 33, 33, 33, and the remaining fuel amount sensor 29 remains. Support rod 3
3 and 33, respectively.
【0022】燃料ポンプ25は上下に長い円筒状をなし
ていて,下端面に吸入管25a,上端面に吐出管25b
がそれぞれ突設されており,その吸入管25aは下部ブ
ラケット板32を貫通して,下部ブラケット板32の下
面に固定される燃料ストレーナ26と接続され,吐出管
25bは,L字状の連通管36を介して燃料フィルタ2
7の入口管27aに連結される。The fuel pump 25 has a vertically long cylindrical shape and has a suction pipe 25a at its lower end and a discharge pipe 25b at its upper end.
Respectively, the suction pipe 25a penetrates the lower bracket plate 32 and is connected to the fuel strainer 26 fixed to the lower surface of the lower bracket plate 32, and the discharge pipe 25b is an L-shaped communication pipe. Fuel filter 2 through 36
7 inlet pipe 27a.
【0023】図7及び図8に示すように,燃料フィルタ
27は,下部ブラケット板32の周縁に沿った断面扇形
の合成樹脂製フィルタハウジング37を備える。このフ
ィルタハウジング37は,上端面を開放したハウジング
本体37aと,このハウジング本体37aの上端面に溶
着されるハウジング蓋体37bとからなっており,その
ハウジング蓋体37bに前記入口管27a及び出口管2
7bが形成され,その出口管27bには,出口管27b
側からフィルタハウジング37側への燃料の逆流を阻止
する一方向弁38が装着される。As shown in FIGS. 7 and 8, the fuel filter 27 is provided with a synthetic resin filter housing 37 having a sectoral cross section along the peripheral edge of the lower bracket plate 32. The filter housing 37 includes a housing body 37a having an open upper end surface and a housing lid body 37b welded to the upper end surface of the housing body 37a. The housing lid body 37b includes the inlet pipe 27a and the outlet pipe. Two
7b is formed, and the outlet pipe 27b is formed in the outlet pipe 27b.
A one-way valve 38 that prevents the reverse flow of fuel from the side to the filter housing 37 side is mounted.
【0024】ハウジング本体37aには,フィルタエレ
メント39が入口管27a及び出口管27bの間に介入
するように収容され,入口管27aからフィルタハウジ
ング37内に流入して出口管27bに向かう燃料を濾過
するようになっている。A filter element 39 is housed in the housing main body 37a so as to intervene between the inlet pipe 27a and the outlet pipe 27b, and the fuel flowing from the inlet pipe 27a into the filter housing 37 toward the outlet pipe 27b is filtered. It is supposed to do.
【0025】図4及び図7において,前記圧力レギュレ
ータ28はフィルタハウジング37の底部に取り付けら
れる。この圧力レギュレータ28は,上下に入口管28
a及び出口管28bを備えており,入口管28aはフィ
ルタハウジング37底部の取り付けボス27cに,出口
管28bは下部ブラケット板32の支持孔32bにそれ
ぞれ嵌挿される。また圧力レギュレータ28は,上部に
取り付けフランジ40を備えており,この取り付けフラ
ンジ40は,フィルタハウジング37にモールド結合さ
れたボルト41と,これに螺着されるナット42とでフ
ィルタハウジング37の底面に固定される。In FIGS. 4 and 7, the pressure regulator 28 is attached to the bottom of the filter housing 37. This pressure regulator 28 has an upper and lower inlet pipe 28.
a and an outlet pipe 28b, the inlet pipe 28a is fitted into the mounting boss 27c at the bottom of the filter housing 37, and the outlet pipe 28b is fitted into the support hole 32b of the lower bracket plate 32. Further, the pressure regulator 28 is provided with a mounting flange 40 on the upper portion, and the mounting flange 40 is provided on the bottom surface of the filter housing 37 by a bolt 41 mold-bonded to the filter housing 37 and a nut 42 screwed to the bolt 41. Fixed.
【0026】上部ブラケット板31には,その上下両面
に突出する燃料取り出し管30が一体成形されており,
この燃料取り出し管30の下端部が燃料フィルタ27の
出口管27bに嵌挿される。The upper bracket plate 31 is integrally formed with the fuel take-out pipes 30 projecting from the upper and lower surfaces thereof.
The lower end of the fuel take-out pipe 30 is fitted into the outlet pipe 27b of the fuel filter 27.
【0027】こうして,燃料フィルタ27及び圧力レギ
ュレータ28は,上部及び下部ブラケット板31,32
間で保持され,燃料ポンプ25は,燃料フィルタ27と
下部ブラケット板32との間で保持される。Thus, the fuel filter 27 and the pressure regulator 28 have the upper and lower bracket plates 31, 32.
The fuel pump 25 is held between the fuel filter 27 and the lower bracket plate 32.
【0028】前記燃料残量センサ29は,下部ブラケッ
ト板32に取り付けられるセンサハウジング45と,こ
のセンサハウジング45に揺動自在に支持されて車両後
方に延びるフロート支持アーム46と,このフロート支
持アーム46の先端部に付設されたフロート47と,セ
ンサハウジング45内に収納されてフロート支持アーム
46の回転角度を燃料タンク18内の燃料残量として電
気量に変換するポテンショメータ48とから構成され
る。The fuel level sensor 29 includes a sensor housing 45 attached to the lower bracket plate 32, a float support arm 46 swingably supported by the sensor housing 45 and extending rearward of the vehicle, and a float support arm 46. And a potentiometer 48 which is housed in the sensor housing 45 and converts the rotation angle of the float support arm 46 into the amount of electricity as the remaining fuel amount in the fuel tank 18.
【0029】再び図4において,上部ブラケット板31
には配線カプラ50が形成され,それが備える複数の接
続端子50a,50bの内端には上記電動式燃料ポンプ
25及び燃料残量センサ29に接続されるリード線(図
示せず)が接続される。そして配線カプラ50には,電
源スイッチや燃料残量インジケータに連なる外部配線カ
プラ(図示せず)が接続される。Referring again to FIG. 4, the upper bracket plate 31
A wiring coupler 50 is formed in the wiring coupler 50, and lead wires (not shown) connected to the electric fuel pump 25 and the fuel level sensor 29 are connected to the inner ends of a plurality of connection terminals 50a and 50b provided therein. It An external wiring coupler (not shown) connected to a power switch and a fuel level indicator is connected to the wiring coupler 50.
【0030】以上において,燃料ポンプ25,燃料フィ
ルタ27及び燃料残量センサ29のハウジング45は,
下部ブラケット板32の上下方向の投影面の範囲に配置
される。In the above, the housing 45 of the fuel pump 25, the fuel filter 27 and the fuel level sensor 29 is
It is arranged in the range of the vertical projection plane of the lower bracket plate 32.
【0031】また図9において,前記エンジン9のシリ
ンダ部9a上面には,それの吸気ポート51に連なる吸
気路52aを持つ吸気路部材52がボルト結合される。
この吸気路部材52には,吸気ポート51の下流側に向
けて燃料を噴射する燃料噴射弁53が取り付けられ,そ
の燃料入口が開口する上端部にカップ状の燃料コネクタ
54が嵌装される。燃料コネクタ54は,その後壁から
突出するステー54aがボルト56で吸気路部材52の
定位置に固着される。また燃料コネクタ54は,車両後
方もしくは斜め後方に突出する接続管54bを備えてお
り,この接続管54bと前記燃料供給ユニット22の燃
料取り出し管30とに可撓性の燃料導管58の両端が強
固に接続される。この場合,特に燃料導管58の上流端
部は,ジョイント59を介して燃料取り出し管30に着
脱可能に接続される。In FIG. 9, an intake passage member 52 having an intake passage 52a connected to an intake port 51 of the cylinder portion 9a of the engine 9 is bolted to the upper surface of the cylinder portion 9a.
A fuel injection valve 53 for injecting fuel toward the downstream side of the intake port 51 is attached to the intake passage member 52, and a cup-shaped fuel connector 54 is fitted to the upper end portion where the fuel inlet opens. In the fuel connector 54, a stay 54a protruding from the rear wall is fixed to a fixed position of the intake passage member 52 with a bolt 56. Further, the fuel connector 54 is provided with a connecting pipe 54b protruding rearward or obliquely rearward of the vehicle, and both ends of a flexible fuel conduit 58 are firmly connected to the connecting pipe 54b and the fuel take-out pipe 30 of the fuel supply unit 22. Connected to. In this case, in particular, the upstream end of the fuel conduit 58 is detachably connected to the fuel takeoff pipe 30 via a joint 59.
【0032】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.
【0033】エンジン9の運転中,燃料ポンプ25は,
燃料タンク18内の燃料を燃料ストレーナ26を通して
吸入し,昇圧して燃料フィルタ27へ吐出する。その燃
料は,燃料フィルタ27で濾過された後,燃料取り出し
管30,燃料導管58,を順次経て燃料噴射弁53に供
給される。その間,燃料ポンプ25の吐出圧力が所定値
を超えると,圧力レギュレータ28が作動して余剰圧力
の燃料を燃料タンク18内に直接放出する。したがっ
て,圧力レギュレータ28には,燃料タンク18への特
別な燃料戻し管を接続する必要がなく,構成の簡素化を
図ることができる。During operation of the engine 9, the fuel pump 25
The fuel in the fuel tank 18 is sucked through the fuel strainer 26, the pressure is increased, and the fuel is discharged to the fuel filter 27. The fuel is filtered by the fuel filter 27 and then supplied to the fuel injection valve 53 through the fuel take-out pipe 30 and the fuel conduit 58 in sequence. During that time, when the discharge pressure of the fuel pump 25 exceeds a predetermined value, the pressure regulator 28 operates to directly discharge the fuel of the excess pressure into the fuel tank 18. Therefore, it is not necessary to connect a special fuel return pipe to the fuel tank 18 to the pressure regulator 28, and the structure can be simplified.
【0034】ところで,燃料ポンプ25,燃料フィルタ
27,圧力レギュレータ28及び燃料残量センサ29
は,3本の支持杆33,33,33を介して上部ブラケ
ット板31に連結して下部ブラケット板32上に設置さ
れるので,それらの重量が下部ブラケット板32を介し
て3本の支持杆33,33,33で支えられることにな
るが,その3本の支持杆33,33,33は,下部ブラ
ケット板32との同心円C上に,各支持杆33,33,
33の隣接間隔を不等にして配置され,支持杆33,3
3,33の隣接間隔の最も狭い箇所に燃料ポンプ25が
配設されるので,燃料供給ユニット22中,比較的小径
であるが最重量物の燃料ポンプ25を,その両側に近接
する2本の支持杆33,33により確実に支持させて,
燃料ポンプ25による下部ブラケット板32の曲げモー
メントを軽減し,下部ブラケット板32の薄肉化,延い
ては軽量化を図ることができる。By the way, the fuel pump 25, the fuel filter 27, the pressure regulator 28 and the fuel remaining amount sensor 29.
Are installed on the lower bracket plate 32 by being connected to the upper bracket plate 31 via the three supporting rods 33, 33, 33, and therefore their weights are reduced by the three supporting rods via the lower bracket plate 32. The three support rods 33, 33, 33 are supported by the support rods 33, 33, 33 on the concentric circle C with the lower bracket plate 32.
The support rods 33, 3 are arranged with unequal intervals of the 33.
Since the fuel pump 25 is disposed at the position where the space between the adjacent fuel cells 3, 33 is narrowest, the fuel pump 25 having the relatively small diameter but the heaviest in the fuel supply unit 22 is provided with two fuel pumps 25 adjacent to each other. Make sure that the support rods 33, 33 support the
The bending moment of the lower bracket plate 32 due to the fuel pump 25 can be reduced, and the lower bracket plate 32 can be made thinner and thus lighter in weight.
【0035】また支持杆33,33,33の隣接間隔の
最も広い箇所には燃料フィルタ27が配設されるので,
比較的大容量の燃料フィルタ27の設置が可能となり,
流路抵抗を下げつゝ,多量の燃料の濾過処理を行うこと
ができる。この場合,特に燃料フィルタ27が,下部ブ
ラケット板32の周縁に沿った断面扇形に形成されてい
るので,支持杆33,33の相互間のスペースをより有
効に利用して,より大容量の燃料フィルタ27を採用す
ることができる。Further, since the fuel filter 27 is disposed at the position where the support rods 33, 33, 33 have the largest adjacency between them,
A relatively large capacity fuel filter 27 can be installed,
A large amount of fuel can be filtered while lowering the flow path resistance. In this case, in particular, since the fuel filter 27 is formed in a fan shape in cross section along the peripheral edge of the lower bracket plate 32, the space between the support rods 33, 33 can be used more effectively, and a larger capacity of fuel can be obtained. The filter 27 can be adopted.
【0036】しかも,全ての支持杆33,33,33の
相互間のスペースが燃料ポンプ25及び燃料フィルタ2
7及び燃料残量センサ29の設置に利用されることで,
下部ブラケット板32上のデッドスペースが排除され,
スペース効率の向上,延いては燃料供給ユニット22の
コンパクト化を図ることができる。Moreover, the space between all the support rods 33, 33, 33 is defined by the fuel pump 25 and the fuel filter 2.
7 and the remaining fuel level sensor 29 are installed,
Dead space on the lower bracket plate 32 is eliminated,
The space efficiency can be improved, and the fuel supply unit 22 can be made compact.
【0037】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.
【0038】[0038]
【発明の効果】以上のように本発明の第1の特徴によれ
ば,3本の支持杆の隣接間隔の最も狭い箇所で燃料ポン
プを下部ブラケット板上に設置したことで,燃料供給ユ
ニット中,比較的小径であるが最重量物の燃料ポンプ
を,その両側に近接する2本の支持杆により確実に支持
させて,燃料ポンプによる下部ブラケット板の曲げモー
メントを軽減し,下部ブラケット板の薄肉化,延いては
軽量化を図ることができる。また3本の支持杆の隣接間
隔の最も広い箇所には燃料フィルタを配設したことで,
比較的大容量の燃料フィルタの設置が可能となり,流路
抵抗を下げつゝ,多量の燃料の濾過処理を行うことがで
きる。しかも支持杆の相互間のスペースが燃料ポンプ及
び燃料フィルタの設置に利用されることで,下部ブラケ
ット板上のデッドスペースが少なくなり,スペース効率
の向上,延いては燃料供給ユニットのコンパクト化を図
ることができる。As described above, according to the first feature of the present invention, the fuel pump is installed on the lower bracket plate at the position where the three support rods have the narrowest adjoining intervals. , The fuel pump, which has the relatively small diameter but is the heaviest, is securely supported by the two support rods on both sides of the fuel pump, and the bending moment of the lower bracket plate by the fuel pump is reduced, and the lower bracket plate has a thin wall. It is possible to reduce the weight and the weight. In addition, by arranging the fuel filter in the widest space between the three support rods,
A relatively large-capacity fuel filter can be installed, and a large amount of fuel can be filtered while lowering the flow path resistance. Moreover, the space between the support rods is used for installing the fuel pump and the fuel filter, so that the dead space on the lower bracket plate is reduced, the space efficiency is improved, and the fuel supply unit is made compact. be able to.
【0039】また本発明の第2の特徴によれば,残る支
持杆の間には燃料残量センサを配設したことで,全ての
支持杆相互間からデッドスペースを排除して,スペース
効率を更に高め,燃料供給ユニットのコンパクト化を効
果的に図ることができる。According to the second feature of the present invention, the remaining fuel amount sensor is provided between the remaining support rods, so that dead spaces are eliminated from all the support rods, and space efficiency is improved. Further, it is possible to further increase the size and effectively reduce the size of the fuel supply unit.
【0040】さらに本発明の第3の特徴によれば,燃料
フィルタを,下部ブラケット板の周縁に沿った断面扇形
に形成したので,支持杆の隣接間隔の最も広いスペース
をより有効に利用して,より大容量の燃料フィルタを採
用することができる。Further, according to the third aspect of the present invention, since the fuel filter is formed in a fan shape in cross section along the peripheral edge of the lower bracket plate, the widest space between adjacent support rods can be used more effectively. , A larger capacity fuel filter can be adopted.
【図1】本発明の燃料供給ユニットを備える自動二輪車
の側面図。FIG. 1 is a side view of a motorcycle including a fuel supply unit of the present invention.
【図2】図1の2矢視拡大図。FIG. 2 is an enlarged view of FIG.
【図3】図2の3−3線断面図。3 is a sectional view taken along line 3-3 of FIG.
【図4】図2の4−4線断面図。4 is a sectional view taken along line 4-4 of FIG.
【図5】図4の5−5線断面図。5 is a sectional view taken along line 5-5 of FIG.
【図6】図4の6−6線断面図。6 is a sectional view taken along line 6-6 of FIG.
【図7】燃料供給ユニットにおける燃料フィルタの縦断
面図。FIG. 7 is a vertical cross-sectional view of a fuel filter in the fuel supply unit.
【図8】図7の8−8線断面図。8 is a sectional view taken along line 8-8 of FIG.
【図9】図2の9−9線断面図。9 is a sectional view taken along line 9-9 of FIG.
18・・・・燃料タンク 22・・・・燃料供給ユニット 23・・・・開口部 25・・・・燃料ポンプ 27・・・・燃料フィルタ 28・・・・圧力レギュレータ 29・・・・燃料残量センサ 31・・・・上部ブラケット板 32・・・・下部ブラケット板 33・・・・支持杆 C・・・・・下部ブラケット板との同心円 18 ... Fuel tank 22 ... Fuel supply unit 23 ... Opening 25 ... Fuel pump 27 ... Fuel filter 28 ... Pressure regulator 29 ... Remaining fuel amount sensor 31 ... Upper bracket plate 32 ... Lower bracket plate 33 ... Support rods C: Concentric circle with the lower bracket plate
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) B62J 39/00 B62J 39/00 J F02M 37/00 301 F02M 37/00 301L (72)発明者 細谷 征央 埼玉県和光市中央1丁目4番1号 株式会 社本田技術研究所内 (72)発明者 島田 信弘 埼玉県和光市中央1丁目4番1号 株式会 社本田技術研究所内 (72)発明者 赤松 俊二 埼玉県和光市中央1丁目4番1号 株式会 社本田技術研究所内 (72)発明者 鈴木 修 宮城県角田市角田字流197−1 株式会社 ケーヒン角田開発センター内 (72)発明者 鳥飼 峰生 宮城県角田市角田字流197−1 株式会社 ケーヒン角田開発センター内 (72)発明者 内藤 敏彦 宮城県角田市角田字流197−1 株式会社 ケーヒン角田開発センター内─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) B62J 39/00 B62J 39/00 J F02M 37/00 301 F02M 37/00 301L (72) Inventor Seiho Hosoya 1-4-1 Chuo, Wako-shi, Saitama, Ltd. Honda R & D Co., Ltd. (72) Inventor Nobuhiro Shimada 1-4-1, Chuo, Wako, Saitama (72) Inventor Shunji Akamatsu 1-4-1 Chuo, Wako-shi, Saitama, Ltd. Honda R & D Co., Ltd. (72) Inventor, Osamu Suzuki Osamu Suzuki, Kakuda, Kakuda, Miyagi Prefecture 197-1 Keihin Kakuda Development Center, Inc. (72) Inventor, Mineo Torikai 197-1 Kakuda Jiryu, Kakuda City, Miyagi Prefecture Keihin Kakuda Development Center Co., Ltd. (72) Inventor, Toshihiko Naito Kakuda Jryu 197-1, Kakuda City, Miyagi Prefecture Ceremony Company Keihin Kakuda Development Center
Claims (3)
た開口部(23)を閉鎖するように取り付けられる上部
ブラケット板(31)に,この上部ブラケット板(3
1)から前記開口部(23)を通して燃料タンク(1
8)内に垂下する3本の支持杆(33,33,33)を
介して下部ブラケット板(32)を連結し,この下部ブ
ラケット板(32)上に燃料タンク(18)内の燃料を
汲み上げる燃料ポンプ(25)を取り付けてなる,燃料
供給ユニットにおいて,3本の支持杆(33,33,3
3)を下部ブラケット板(32)との同心円(C)上
に,各支持杆(33,33,33)の隣接間隔を不等に
して配置し,支持杆(33,33,33)の隣接間隔の
最も狭い箇所で燃料ポンプ(25)を下部ブラケット板
(32)上に設置し,支持杆(33,33,33)の隣
接間隔の最も広い箇所で燃料ポンプ(25)の吐出燃料
を濾過する燃料フィルタ(27)を下部ブラケット板
(32)上に設置したことを特徴とする,燃料供給ユニ
ット。1. An upper bracket plate (31) attached to a fuel tank (18) so as to close an opening (23) provided therein, and the upper bracket plate (3).
1) through the opening (23) to the fuel tank (1
8) The lower bracket plate (32) is connected through three supporting rods (33, 33, 33) which hang down inside, and the fuel in the fuel tank (18) is pumped up onto the lower bracket plate (32). In a fuel supply unit having a fuel pump (25) attached, three support rods (33, 33, 3)
3) are arranged on the concentric circle (C) with the lower bracket plate (32) with the adjacent intervals of the support rods (33, 33, 33) being unequal, and the support rods (33, 33, 33) are adjacent to each other. The fuel pump (25) is installed on the lower bracket plate (32) at the narrowest space, and the fuel discharged from the fuel pump (25) is filtered at the widest space adjacent to the support rods (33, 33, 33). A fuel supply unit, characterized in that a fuel filter (27) is installed on the lower bracket plate (32).
て,残余の支持杆(33,33)の間で下部ブラケット
板(32)上に燃料残量センサ(29)を設置したこと
を特徴とする,燃料供給ユニット。2. The fuel supply unit according to claim 1, wherein a fuel level sensor (29) is installed on the lower bracket plate (32) between the remaining support rods (33, 33). 、 Fuel supply unit.
において,燃料フィルタ(27)を下部ブラケット板
(32)の周縁に沿った断面扇形に形成したことを特徴
とする,燃料供給ユニット。3. The fuel supply unit according to claim 1, wherein the fuel filter (27) is formed in a fan shape in cross section along the peripheral edge of the lower bracket plate (32).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001356685A JP3908941B2 (en) | 2001-11-21 | 2001-11-21 | Fuel supply unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001356685A JP3908941B2 (en) | 2001-11-21 | 2001-11-21 | Fuel supply unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2003161218A true JP2003161218A (en) | 2003-06-06 |
JP3908941B2 JP3908941B2 (en) | 2007-04-25 |
Family
ID=19168162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001356685A Expired - Fee Related JP3908941B2 (en) | 2001-11-21 | 2001-11-21 | Fuel supply unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3908941B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005104444A (en) * | 2003-09-30 | 2005-04-21 | Honda Motor Co Ltd | Fuel tank structure for motorcycle |
JP2007055542A (en) * | 2005-08-26 | 2007-03-08 | Honda Motor Co Ltd | Fuel hose mounting structure |
JP2008248752A (en) * | 2007-03-29 | 2008-10-16 | Honda Motor Co Ltd | Fuel supply device |
JP2012052470A (en) * | 2010-09-01 | 2012-03-15 | Honda Motor Co Ltd | Vehicle fuel supply device |
US8220437B2 (en) | 2007-03-29 | 2012-07-17 | Honda Motor Co., Ltd. | Vehicle fuel supply device and fuel filter structure |
JP2012219726A (en) * | 2011-04-11 | 2012-11-12 | Suzuki Motor Corp | Mounting structure for fuel pump and motorcycle |
JP2017065542A (en) * | 2015-09-30 | 2017-04-06 | 本田技研工業株式会社 | Saddle-riding type vehicle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5227932B2 (en) * | 2009-09-30 | 2013-07-03 | 本田技研工業株式会社 | Scooter type vehicle |
-
2001
- 2001-11-21 JP JP2001356685A patent/JP3908941B2/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005104444A (en) * | 2003-09-30 | 2005-04-21 | Honda Motor Co Ltd | Fuel tank structure for motorcycle |
JP2007055542A (en) * | 2005-08-26 | 2007-03-08 | Honda Motor Co Ltd | Fuel hose mounting structure |
JP4613114B2 (en) * | 2005-08-26 | 2011-01-12 | 本田技研工業株式会社 | Fuel hose mounting structure |
JP2008248752A (en) * | 2007-03-29 | 2008-10-16 | Honda Motor Co Ltd | Fuel supply device |
US8220437B2 (en) | 2007-03-29 | 2012-07-17 | Honda Motor Co., Ltd. | Vehicle fuel supply device and fuel filter structure |
JP2012052470A (en) * | 2010-09-01 | 2012-03-15 | Honda Motor Co Ltd | Vehicle fuel supply device |
JP2012219726A (en) * | 2011-04-11 | 2012-11-12 | Suzuki Motor Corp | Mounting structure for fuel pump and motorcycle |
JP2017065542A (en) * | 2015-09-30 | 2017-04-06 | 本田技研工業株式会社 | Saddle-riding type vehicle |
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