JP2559311B2 - Fuel piping structure for multiple throttle bodies - Google Patents

Fuel piping structure for multiple throttle bodies

Info

Publication number
JP2559311B2
JP2559311B2 JP3351564A JP35156491A JP2559311B2 JP 2559311 B2 JP2559311 B2 JP 2559311B2 JP 3351564 A JP3351564 A JP 3351564A JP 35156491 A JP35156491 A JP 35156491A JP 2559311 B2 JP2559311 B2 JP 2559311B2
Authority
JP
Japan
Prior art keywords
injector
throttle body
fuel
connecting rigid
rigid member
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.)
Expired - Fee Related
Application number
JP3351564A
Other languages
Japanese (ja)
Other versions
JPH05164024A (en
Inventor
哲夫 入江
俊行 窪田
明博 高山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP3351564A priority Critical patent/JP2559311B2/en
Publication of JPH05164024A publication Critical patent/JPH05164024A/en
Application granted granted Critical
Publication of JP2559311B2 publication Critical patent/JP2559311B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Fuel-Injection Apparatus (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】A.発明の目的 (1)産業上の利用分野 この発明は、自動車及び自動二輪車等におけるインジェ
クタを備えた内燃機関の燃料供給系に関し、更に詳しく
は、インジェクタが組み付けられたスロットルボディの
燃料配管構造に関する。
A. OBJECT OF THE INVENTION (1) Field of Industrial Application The present invention relates to a fuel supply system of an internal combustion engine including an injector in automobiles and motorcycles, and more particularly to a fuel piping structure of a throttle body in which the injector is assembled .

【0002】(2) 従来の技術 図5及び図6は従来のこの種の多連スロットルボディの
燃料配管構造の一例を示す。これらの図において、10
0はスロットルボディであって、該スロットルボディ1
00の吸気道102に燃料を噴出するインジェクタ10
4が組付けられてなる。そして、これらのインジェクタ
104に燃料を供給する配管として、前部側インジェク
タには前部側燃料管106が、また、後部側インジェク
タには後部側燃料管108がそれぞれ平行に配され、こ
れらの燃料管106,108相互は結合管110によっ
て結合される。そして、燃料は前部側燃料管106から
結合管110を経由して後部側燃料管108に流れ、そ
の途中にこれらの燃料管106,108に接続されるイ
ンジェクタ104に燃料を供給する。
(2) Prior Art FIG. 5 and FIG. 6 show an example of a conventional fuel piping structure of this type of multiple throttle body. In these figures, 10
0 is a throttle body, and the throttle body 1
Injector 10 for injecting fuel into the intake passage 102 of 00
4 is assembled. Then, as piping for supplying fuel to these injectors 104, a front side fuel pipe 106 is arranged in parallel to the front side injector, and a rear side fuel pipe 108 is arranged in parallel to the rear side injector. The tubes 106 and 108 are connected to each other by a connecting tube 110. Then, the fuel flows from the front side fuel pipe 106 to the rear side fuel pipe 108 via the coupling pipe 110, and supplies fuel to the injector 104 connected to these fuel pipes 106, 108 in the middle thereof.

【0003】しかして、このような燃料配管構造におい
て、インジェクタ104を交換する必要があるとき、一
つのインジェクタであっても配管106,108,11
0のすべてを分解することとなり、その再度の組付けに
多大の手間を要するばかりでなく、燃料管106,10
8,110相互の密封性が破壊され、保守管理上問題が
ある。また、この配管106,108,110の分解に
おいて、インジェクタ組付け体自体は一体性を保つ必要
性から、単位インジェクタ組付け体相互はステー等の結
合部材によって剛性が保持され、この剛性を確保するた
めインジェクタ組付け体の全体の重量が増大する。従っ
てまた、このインジェクタ組付け体の重量に加え、燃料
配管の重量が付加され、全体として重量の嵩むものとな
っている。
However, in such a fuel piping structure, when it is necessary to replace the injector 104, even if only one injector is used, the piping 106, 108, 11
No. 0 will be disassembled, and not only a great deal of labor will be required for the reassembly, but also the fuel pipes 106, 10
The sealability between 8 and 110 is destroyed, which causes a problem in maintenance management. Further, in disassembling the pipes 106, 108, 110, since it is necessary to maintain the integrity of the injector assembly itself, the unit injector assemblies are kept rigid by a connecting member such as a stay, and this rigidity is ensured. Therefore, the weight of the entire injector assembly increases. Therefore, in addition to the weight of the injector assembly, the weight of the fuel pipe is added, and the weight is increased as a whole.

【0004】(3) 発明が解決しようとする問題点 本発明は上記実情に鑑みなされたものであり、この種の
多連スロットルボディにおいて、インジェクタの組付け
・取外しを容易になすことができ、かつ、全体の重量の
軽減を図る燃料配管構造を提供することを目的とする。
本発明はこのため、燃料配管部をインジェクタ組付け体
の構造本体に組み込むことをもって課題の解決を図った
ものである。
(3) Problems to be Solved by the Invention The present invention has been made in view of the above circumstances, and in this type of multiple throttle body, the injector can be easily attached and detached, Moreover, it is an object of the present invention to provide a fuel piping structure for reducing the overall weight.
Therefore, the present invention aims to solve the problem by incorporating the fuel pipe portion into the structural body of the injector assembly.

【0005】B.発明の構成 (1)問題点を解決するための手段 本発明の多連スロットルボディの燃料配管構造は上記目
的を達成するため、次の構成を採る。すなわち、上下に
縦設された吸気道を有するとともに該吸気道内に燃料を
噴射するインジェクタを装着してなる単位スロットルボ
ディを、少なくともその単位スロットルボディを相対し
て配してなる多連スロットルボディにおいて、 前記イ
ンジェクタは前記単位スロットルボディ本体の相対向す
る側の内側面部から離反する方向に配され、前記単位ス
ロットルボディ本体の互いに対向する内側面部に、前記
インジゥクタと位相をずらせてリブが突設され、前記リ
ブ相互に、前記相対向する単位スロットルボディ間に平
行状に配される連結剛材を該連結剛材の側面部に張設さ
れた翼部を介して連結され、前記連結剛材には主燃料通
路が形成され、前記連結剛材上に分岐部材が互いに離反
する方向に取着自在に立ち上げて配され、この分岐部材
に前記主燃料通路に連通する副燃料通路が形成され、前
記インジェクタの頭部の燃料入口部をこの分岐部材の副
燃料通路に接続してなる。
B. Structure of the Invention (1) Means for Solving the Problems The fuel piping structure of the multiple throttle body of the present invention has the following structure in order to achieve the above object. Ie up and down
A unit throttle body having a vertically installed intake passage and an injector for injecting fuel into the intake passage is provided in a multiple throttle body in which at least the unit throttle body is arranged to face each other. The unit throttle body body is opposite
Disposed in a direction away from the inside surface of that side, the inner side surface portion facing each other of the unit throttle body main, the
Ribs is protruded by shifting the Injiukuta and phase, the Li
Between the unit throttle bodies facing each other.
The connecting rigid members arranged in rows are stretched on the side surfaces of the connecting rigid members.
The main fuel passage to the connecting rigid member.
A passage is formed , and a branch member is erected so as to be detachable from each other on the connecting rigid member in a direction away from each other, and an auxiliary fuel passage communicating with the main fuel passage is formed in the branch member. The fuel inlet of the head is connected to the auxiliary fuel passage of the branch member.

【0006】(2) 作用 相対設する単位スロットルボディは連結剛材により剛性
を保って組み付けられる。この多連スロットルボディの
組立て作業において、連結剛材を含む多連スロットルボ
ディの骨組体が組み立てられ、しかる後、インジェクタ
及び分岐部材が組み付けられる。燃料は連結剛材の主燃
料通路を通り、分岐部材の副燃料通路を経由し、インジ
ェクタの頭部の入口部へと導かれる。インジェクタの交
換時、分岐部材を取り外した後、インジェクタをその軸
方向へ沿って引き抜く。
(2) Operation The unit throttle bodies that are provided opposite to each other are assembled by a connecting rigid member while maintaining rigidity. In the assembly work of this multiple throttle body, the framework of the multiple throttle body including the connecting rigid material is assembled, and then the injector and the branch member are assembled. The fuel passes through the main fuel passage of the connecting rigid member, the sub fuel passage of the branch member, and is guided to the inlet portion of the head of the injector. When replacing the injector, after removing the branch member, the injector is pulled out along its axial direction.

【0007】(3) 実施例 本発明の多連スロットルボディの燃料配管構造の実施例
を図面に基づいて説明する。 (第1実施例)図1〜図4はその一実施例であって、自
動二輪車におけるV型多気筒エンジンに装着される多連
スロットルボディへの適用を示す。すなわち、図1はそ
の多連スロットルボディの全体の平面構造を示し、図2
〜図4はその要部の断面構造を示す。
(3) Embodiment An embodiment of the fuel piping structure of the multiple throttle body of the present invention will be described with reference to the drawings. (First Embodiment) FIGS. 1 to 4 show one embodiment of the present invention, which is applied to a multiple throttle body mounted on a V-type multi-cylinder engine in a motorcycle. That is, FIG. 1 shows the overall planar structure of the multiple throttle body, and FIG.
4 shows the cross-sectional structure of the main part.

【0008】図1に示されるように、この多連スロット
ルボディSは、それぞれにインジェクタIが装着された
4つの単位スロットルボディT1,T2,T3,T4か
らなる。この図において、前部側に単位スロットルボデ
ィT1,T3が配され、後部側に単位スロットルボディ
T2,T4が配されたものとし、更に、スロットルボデ
ィT1,T2は上流側、スロットルボディT3,T4は
下流側とする。しかして、これらのスロットルボディT
1,T2及びT3,T4相互は本実施例に特有の構成を
もって結合される。なお、前後に相並ぶスロットルボデ
ィT1,T2及びT3,T4相互は、互いに位相をずら
せて配される。以下、個々の単位スロットルボディT1
〜T4に共通する記述についてはスロットルボディTと
する。
As shown in FIG. 1, the multiple throttle body S is composed of four unit throttle bodies T1, T2, T3, T4 each having an injector I attached thereto. In this figure, it is assumed that the unit throttle bodies T1 and T3 are arranged on the front side and the unit throttle bodies T2 and T4 are arranged on the rear side. Is on the downstream side. Then, these throttle bodies T
1, 1, T2, T3, and T4 are connected to each other with a configuration unique to this embodiment. The front and rear throttle bodies T1, T2 and T3, T4 are arranged out of phase with each other. Below, each individual throttle body T1
The description common to T4 is the throttle body T.

【0009】すなわち、スロットルボディTにおいて、
10はそのスロットルボディTの本体部であって、相並
んで上下に貫通する2つの吸気道11を有し、それぞれ
の吸気道11に絞り弁12が配される。該2つの絞り弁
12は本体部10を水平に貫通する共通のスロットルシ
ャフト13により回動される。該スロットルシャフト1
3は本体部10の外方へ延設され、該延設部に設けたリ
ンク部材15により回動駆動される。このような構成は
公知に属する。
That is, in the throttle body T,
Reference numeral 10 denotes a main body portion of the throttle body T, which has two intake passages 11 which vertically pass through each other and a throttle valve 12 is arranged in each intake passage 11. The two throttle valves 12 are rotated by a common throttle shaft 13 that horizontally penetrates the main body 10. The throttle shaft 1
3 is extended to the outside of the main body 10 and is rotationally driven by a link member 15 provided on the extended portion. Such a configuration is well known.

【0010】図2及び図3は前後に相並ぶスロットルボ
ディT1とT2(あるいはT3とT4)との断面構造を
示す。先ず、図2に示すように、スロットルボディTの
本体部10の側部には、それぞれの吸気道11におい
て、絞り弁12の下流側の吸気道11に合流する燃料吐
出孔17を有するインジェクタ取付け部18が突設され
る。このインジェクタ取付け部18は内孔19がソケッ
ト状の受口部に形成され、該内孔19にインジェクタI
の先端部Iaがパッキン20を介して液密に装着され
る。なお、該インジェクタ取付け部18は横方向に相並
んで配されるものであることは容易に理解されるところ
であり、また、インジェクタIの取付け姿勢は、内方へ
傾斜し、相対向するインジェクタI相互は位相をずら
せ、その延長線上で交わる。
2 and 3 show the sectional structure of the throttle bodies T1 and T2 (or T3 and T4) juxtaposed in the front-rear direction. First, as shown in FIG. 2, on the side portion of the main body portion 10 of the throttle body T, in each intake passage 11, an injector mounting having a fuel discharge hole 17 that joins the intake passage 11 on the downstream side of the throttle valve 12 is attached. The portion 18 is provided so as to project. An inner hole 19 of the injector mounting portion 18 is formed in a socket-shaped receiving portion, and the injector I is inserted into the inner hole 19.
The front end portion Ia of the above is attached in a liquid-tight manner via the packing 20. It is easily understood that the injector mounting portions 18 are arranged side by side in the lateral direction, and the mounting posture of the injector I is such that the injector I is inclined inward and faces each other. Mutually shift the phase and intersect on the extension line.

【0011】次に、図3に示すように、本体部10の
側部の上下部には、上部リブ22及び下部リブ23が
それぞれ前記したインジェクタ取付け部18の中間に突
設される。前後に相並ぶスロットルボディT1,T2
(T3,T4)は、それらの上部リブ22及び下部リブ
23相互を位相をずらせて相対向し、上部リウ22相互
間には上部連結剛材24が連結ボルト25を介して連結
され、下部リブ23相互間には下部連結剛材26が内方
及び外方連結ボルト27,28を介して連結される。2
2a,24aは連結ボルト25の装入されるねじ孔及び
ボルト挿通孔であり、23a,23b,はそれぞれ連結
ボルト27,28の装入される内方及び外方ボルト挿通
孔である。なお、上部連結剛材24は、上部リブ22の
上面に重合載置され、下部連結剛材26は下部リブ23
の側面に添設されて固定されてなる。下部連結剛材の下
部リブ23への連結態様はこの態様に限らず、上面もし
くは下面に重合して固定することもできる。更には、上
部リブ22・上部連結剛材24で十分に剛性を保持しえ
れば、下部リブ23の省略も可能である。
[0011] Next, as shown in FIG. 3, of the main body portion 10
The upper and lower portions of the square side, the upper rib 22 and lower rib 23 is projected from the middle of the injector mounting portion 18 described above, respectively. Throttle bodies T1 and T2 side by side
(T3, T4) face each other with their upper ribs 22 and lower ribs 23 out of phase with each other, and an upper connecting rigid member 24 is connected between the upper ribs 22 via connecting bolts 25. A lower connecting rigid member 26 is connected between the two 23 via inner and outer connecting bolts 27 and 28. Two
2a and 24a are screw holes and bolt insertion holes into which the connecting bolts 25 are inserted, and 23a and 23b are inner and outer bolt insertion holes into which the connecting bolts 27 and 28 are inserted, respectively. The upper connecting rigid member 24 is superposed on the upper surface of the upper rib 22, and the lower connecting rigid member 26 is placed on the lower rib 23.
It is attached to the side of and fixed. Below the lower connecting rigid material
The connection mode to the partial rib 23 is not limited to this mode, and it is also possible to superimpose and fix it on the upper surface or the lower surface. Further, the lower rib 23 can be omitted if the upper rib 22 and the upper connecting rigid member 24 can maintain sufficient rigidity.

【0012】上部連結剛材24は、本実施例において特
徴ある構成を採る。まず、該上部連結剛材24は、この
多連スロットルボディSの上流から下流にわたって一体
の長尺体よりなり、その断面は、上面24Aが平坦面に
された縦長の長方形状とされ、スロットルボディTの上
部リブ22の対応位置において、前方及び後方の両側方
に張り出す翼部30(前部翼部30A,後部翼部30
B)が形成される。該翼部30は相対する上部リブ22
の位相ずれに対応して位相をずらせて突設される。該翼
部30には前記したボルト挿通孔24aが開設され、前
記した上部リブ部22のねじ孔22aに対応し、これら
の孔24a,22aに連結ボルト25が螺装される。上
部連結剛材24はその断面形状により大きな剛性を示
し、この多連スロットルボディSに作用する変形力に対
抗する。
The upper connecting rigid member 24 has a characteristic structure in this embodiment. First, the upper connecting rigid member 24 is an elongated body that is integrated from upstream to downstream of the multiple throttle body S, and its cross section is a vertically long rectangular shape with the upper surface 24A being a flat surface. At the corresponding position of the upper rib 22 of T, the wing portions 30 (front wing portion 30A, rear wing portion 30) that project to the front and rear sides.
B) is formed. The wings 30 are opposed to the upper rib 22
It is projected so as to shift the phase corresponding to the phase shift of. The wing portion 30 is provided with the above-mentioned bolt insertion hole 24a, which corresponds to the above-mentioned screw hole 22a of the upper rib portion 22, and the connecting bolt 25 is screwed into these holes 24a, 22a. The upper connecting rigid member 24 has a large rigidity due to its sectional shape, and opposes the deforming force acting on the multiple throttle body S.

【0013】該上部連結剛材24にはまた、その下部
に、かつ、その長手方向にわたって、主燃料通路孔32
が縦設される。該燃料通路孔32は上部連結剛材24の
翼部30において、斜め上方に向けて2つの分岐燃料孔
33が互いに位相をずらせて形成される。
The upper connecting rigid member 24 also has a main fuel passage hole 32 at the lower portion thereof and along the longitudinal direction thereof.
Is installed vertically. The fuel passage hole 32 is formed in the blade portion 30 of the upper connecting rigid member 24 such that two branched fuel holes 33 are arranged obliquely upward and out of phase with each other.

【0014】更に、上部連結剛材24の翼部30部分に
おいて、該上部連結剛材24の上面24Aに2つの分岐
部材35が互いに離反する方向に、かつ、上方に向けて
立ち上げて取り付けられる。この分岐部材35は、取付
け基部36と該基部36より立ち上がるT字部37とか
らなる。T字部37はまた柱部37aと分岐部37bと
からなる。
Further, in the wing portion 30 of the upper connecting rigid member 24, the two branch members 35 are attached to the upper surface 24A of the upper connecting rigid member 24 in a direction in which they separate from each other and upward. . The branch member 35 includes a mounting base portion 36 and a T-shaped portion 37 standing upright from the base portion 36. The T-shaped portion 37 also includes a pillar portion 37a and a branch portion 37b.

【0015】もっと詳しくは、基部36にはT字部37
の柱部37aを避けて2つのボス孔36aが、また上部
連結剛材24にはその対応位置にねじ孔24bがそれぞ
れ穿設され、これらの孔36a,24bに螺装されたビ
ス38をもって強固に固定される。これにより、分岐部
材35はビス38を取り外すことにより上部連結剛材2
4から取り外すことができる。
More specifically, the base portion 36 has a T-shaped portion 37.
The two boss holes 36a are provided to avoid the column portion 37a of the above, and the screw holes 24b are formed at corresponding positions in the upper connecting rigid member 24, respectively, and the screw 38 screwed into these holes 36a, 24b is used to secure the boss holes. Fixed to. As a result, the branch member 35 is removed by removing the screw 38, and
4 can be removed.

【0016】T字部37の柱部37a及び分岐部37b
内には副燃料通路40が形成される。すなわち、この副
燃料通路40は一端を上部連結剛材24の分岐燃料孔3
3に接続され、他端はインジェクタIの頭部Ibを受け
入れる分岐部37bの両端に形成されたソケット状の受
入孔41に連なる。
The pillar portion 37a and the branch portion 37b of the T-shaped portion 37
An auxiliary fuel passage 40 is formed inside. That is, one end of the auxiliary fuel passage 40 is connected to the branch fuel hole 3 of the upper connecting rigid member 24.
3, the other end of which is connected to socket-shaped receiving holes 41 formed at both ends of the branch portion 37b that receives the head portion Ib of the injector I.

【0017】図4はT字部37の分岐部37bの接続構
造を示す。受入孔41はインジェクタIの取付け部18
の内孔19の軸線に一致する。
FIG. 4 shows a connecting structure of the branch portion 37b of the T-shaped portion 37. The receiving hole 41 is the mounting portion 18 of the injector I.
It coincides with the axis of the inner hole 19 of.

【0018】しかして、この多連スロットルボディSの
各吸気道11は、V型多気筒エンジンの各気筒に連接す
る。
However, each intake passage 11 of the multiple throttle body S is connected to each cylinder of the V-type multi-cylinder engine.

【0019】 次に、本実施例の多連スロットルボディ
Sの作用について説明する。この多連スロットルボディ
Sは、個々の単位スロットルボディT1,T2,T3,
T4相互が、上部連結剛材24並びに下部連結剛材26
により剛性を保って組付けられる。
Next, the operation of the multiple throttle body S of this embodiment will be described. This multiple throttle body S includes individual unit throttle bodies T1, T2, T3.
T4 mutually connects the upper connecting rigid member 24 and the lower connecting rigid member 26.
As a result, it can be assembled while maintaining rigidity.

【0020】すなわち、前後に相対向する単位スロット
ルボディT1,T2、及びT3,T4は、上部連結剛材
24と下部連結剛材26とにより上下2段にわたって剛
結され、大きな剛性を発揮する。この場合、単位スロッ
トルボディTの上部リブ22と上部連結剛材24と、更
には下部リブ23と下部連結剛材26とは、互いに広い
面積で重なり合い、大きな変形抵抗力を発揮する。そし
て、この前後に一体化された2組のスロットルボディT
とT2及びT3,T4は、上下流方向にみて、一本の
強い剛性を有する上部連結剛材24をもって連結され、
変形力に抵抗する。これにより結局、多連スロットルボ
ディSは全体として大きな剛性をもつことになる。
That is, the unit throttle bodies T1, T2, and T3, T4, which are opposed to each other in the front-rear direction, are rigidly connected to each other by the upper connecting rigid member 24 and the lower connecting rigid member 26 in the upper and lower stages, and exert a great rigidity. In this case, the upper rib 22 and the upper connecting rigid member 24 of the unit throttle body T, and the lower rib 23 and the lower connecting rigid member 26 overlap each other in a wide area, and exert a large deformation resistance. And two sets of throttle body T that are integrated before and after this
1 and T2 and T3, T4 are connected by one upper connecting rigid member 24 having a strong rigidity as viewed in the upstream and downstream directions,
Resists deforming forces. As a result, the multiple throttle
The di S will have great rigidity as a whole.

【0021】このスロットルボディSの組立て作業にお
いて、スロットルボディSの上下部連結剛材24,26
を含む骨格体が組立てられたのち、インジェクタI及び
分岐部材35が組み付けられる。
In assembling the throttle body S, the upper and lower connecting rigid members 24 and 26 of the throttle body S are assembled.
After the skeleton body including is assembled, the injector I and the branching member 35 are assembled.

【0022】燃料は上部連結剛材24の主燃料通路32
を通り、分岐燃料孔33に導かれ、分岐部材35の副燃
料通路40を経由し、分岐部材35の分岐部37bの受
入孔41に達し、インジェクタIの頭部Ibの燃料入口
部へと導かれる。
The fuel is the main fuel passage 32 of the upper connecting rigid member 24.
Through the auxiliary fuel passage 40 of the branch member 35, reaches the receiving hole 41 of the branch portion 37b of the branch member 35, and leads to the fuel inlet portion of the head portion Ib of the injector I. Get burned.

【0023】次に、インジェクタIを交換する必要が生
じた際、分岐部材35を取り外した後、インジェクタI
をその軸方向へ沿って引き抜く。
Next, when it is necessary to replace the injector I, after removing the branch member 35, the injector I
Pull out along the axial direction.

【0024】本実施例の多連スロットルボディSによれ
ば、多連スロットルボディSの構造材が燃料通路を兼ね
るので、その大きな剛性に比べ、重量が比較的小さく、
軽量化をなすことができ、かつ、材料費の節減になる。
また、多連スロットルボディSの組立て時において、上
部及び下部連結剛材24,26を含む骨組体が組み立て
られたのちインジェクタI及び分岐部材35が組み付け
られるので、インジェクタの組付け作業が容易となり、
かつ、組立て精度が向上する。更にまた、インジェクタ
Iの取り替えにおいて、所定の分岐部材35のみを取り
外せば所望のインジェクタIを交替でき、しかも、分岐
部材35を撤去しても多連スロットルボディS自体は所
定の剛性を保持するので、この交替作業は容易に行うこ
とができる。仮に全部のインジェクタIの取替え作業で
あっても上述のとおりである。
According to the multiple throttle body S of this embodiment, since the structural material of the multiple throttle body S also serves as the fuel passage, its weight is relatively small compared to its large rigidity.
The weight can be reduced and the material cost can be reduced.
Further, at the time of assembling the multiple throttle body S, the injector I and the branch member 35 are assembled after the skeleton body including the upper and lower connecting rigid members 24 and 26 is assembled, so that the injector assembling work becomes easy,
Moreover, the assembling accuracy is improved. Furthermore, when replacing the injector I, the desired injector I can be replaced by removing only the predetermined branch member 35, and moreover, even if the branch member 35 is removed, the multiple throttle body S itself retains the predetermined rigidity. , This replacement work can be easily performed. Even if all the injectors I are replaced, they are as described above.

【0025】本発明は上記実施例に限定されるものでは
なく、本発明の基本的技術思想の範囲内で種々設計変更
が可能である。すなわち、以下の態様は本発明の技術的
範囲に包含されるものである。 本実施例では上下流側にそれぞれ一対の4個の単位ス
ロットルボディTの組み合わせからなるスロットルボデ
ィSを示したが、相対向する2個の単位スロットルボデ
ィの組み合わせのスロットルボディであってもよい。 本実施例の単位スロットルボディTはそれぞれ2つの
吸気道11を有するが、単一であってもよい。また、3
以上であってもよい。この場合、例えば単一の吸気道に
おいては、インジェクタIは1つであり、また、分岐部
材35はT字構造を採らず、直線的に連結される態様を
採る。 本実施例においては、相対向するスロットルボディT
の相互は位相をずらせた配置態様を採るが、これは配置
密実化を図るためであり、空間的に余裕があれば位相
のずれは不必要である。従って、分岐部材35相互は同
一軸線上に併ぶ。
The present invention is not limited to the above embodiments, but various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention. In the present embodiment, the throttle bodies S each consisting of a pair of four unit throttle bodies T are shown on the upstream and downstream sides, but a combination of two unit throttle bodies facing each other may be used. Although the unit throttle bodies T of this embodiment each have two intake passages 11, they may be single. Also, 3
It may be more than. In this case, for example, in a single intake passage, the number of injectors I is one, and the branch member 35 does not have a T-shaped structure but is linearly connected. In this embodiment, the throttle bodies T facing each other
The above-mentioned arrangements adopt an arrangement mode in which the phases are shifted from each other, but this is for the purpose of making the arrangement dense , and the phase shift is unnecessary if there is a spatial allowance. Therefore, the branch members 35 are aligned on the same axis.

【0026】C.発明の効果 本発明によれば、多連スロットルボディの構造材が燃料
通路を兼ねるので、その大きな剛性に比べ、重量が比較
的小さく、軽量化をなすことができるとともに、材料費
の節減を図ることができる。スロットルボディと連結剛
材とは、インジェクタと位相をずらされたリブと連結剛
材の側面より張設されリブと同位相の翼部とをもって連
結されるので、相対向するスロットルボディの配置間隔
を密にすることができ、全体として配置空間の密実化を
図りうる。多連スロットルボディの組立て時において、
連結剛材を含む骨組体が組立られたのちインジェクタ及
び分岐部材が組み付けられるので、インジェクタの組付
け作業が容易となり、かつ、組立て精度が向上する。更
にまた、インジェクタの取り替えにおいて、所定の分岐
部材のみを取り外せば所望のインジェクタを交替でき、
しかも、分岐部材を取り外しても多連スロットルボディ
自体は所定の剛性を保持するので、この交替作業は容易
に行うことができる。
C. EFFECTS OF THE INVENTION According to the present invention, since the structural material of the multiple throttle body also serves as the fuel passage, the weight is relatively small and the weight can be reduced as compared with its large rigidity, and the material cost can be reduced. be able to. Connected to the throttle body
The material is a rigid structure that is connected to the ribs that are out of phase with the injector.
It is stretched from the side of the material and is connected with the rib and the wing part in the same phase.
Because they are tied together, the spacing between the opposing throttle bodies
Can be made dense, and the placement space can be made more solid as a whole.
It can be planned. When assembling the multiple throttle body,
Since the injector and the branch member are assembled after the skeleton body including the connecting rigid member is assembled, the injector assembling work becomes easy and the assembling accuracy is improved. Furthermore, when replacing the injector, the desired injector can be replaced by removing only the predetermined branch member,
Moreover, since the multiple throttle bodies themselves retain a predetermined rigidity even if the branch member is removed, this replacement work can be easily performed.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の多連スロットルボディの燃料配管構造
の一実施例を示す全体平面図。
FIG. 1 is an overall plan view showing an embodiment of a fuel piping structure for a multiple throttle body of the present invention.

【図2】図1のII−II線断面図。FIG. 2 is a sectional view taken along line II-II of FIG.

【図3】図1のIII −III 線断面図。FIG. 3 is a sectional view taken along line III-III in FIG. 1;

【図4】図2のIV−IV線断面図。4 is a sectional view taken along line IV-IV of FIG.

【図5】従来の燃料配管構造の平面態様を示す図。FIG. 5 is a diagram showing a plan view of a conventional fuel piping structure.

【図6】図5のVI−VI線断面図。6 is a sectional view taken along line VI-VI of FIG.

【符号の説明】[Explanation of symbols]

S…多連スロットルボディ、T…単位スロットルボデ
ィ、I…インジェクタ、Ib…インジェクタ頭部、10
…スロットルボディ本体、11…吸気道、22…リブ
(上部リブ)、24…連結剛材(上部連結剛材)、32
…主燃料通路、35…分岐部材、40…副燃料通路
S ... Multiple throttle body, T ... Unit throttle body, I ... Injector, Ib ... Injector head, 10
... throttle body main body, 11 ... intake passage, 22 ... rib (upper rib), 24 ... connecting rigid material (upper connecting rigid material), 32
... Main fuel passage, 35 ... Branching member, 40 ... Sub fuel passage

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭56−101054(JP,A) 特開 昭59−70873(JP,A) 実開 平2−54359(JP,U) 実開 昭63−202769(JP,U) 実開 昭62−69072(JP,U) 実開 平2−59252(JP,U) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-56-101054 (JP, A) JP-A-59-70873 (JP, A) Actually open flat 2-54359 (JP, U) Actually open 63- 202769 (JP, U) Actual opening Sho 62-69072 (JP, U) Actual opening Flat 2-59252 (JP, U)

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 上下に縦設された吸気道を有するととも
に該吸気道内に燃料を噴射するインジェクタを装着して
なる単位スロットルボディを、少なくともその単位スロ
ットルボディを相対して配してなる多連スロットルボデ
ィにおいて、 前記インジェクタは前記単位スロットルボディ本体の
対向する側の内側面部から離反する方向に配され、 前記単位スロットルボディ本体の互いに対向する内側面
部に、前記インジェクタと位相をずらせてリブが突設さ
れ、前記リブ相互に、前記相対向する単位スロットルボディ
間に平行状に配される連結剛材を該連結剛材の側面部に
張設された翼部を介して連結され、 前記連結剛材には主燃料通路が形成され、 前記連結剛材上に分岐部材が互いに離反する方向に取着
自在に立ち上げて配され、この分岐部材に前記主燃料通
路に連通する副燃料通路が形成され、 前記インジェクタの頭部の燃料入口部をこの分岐部材の
副燃料通路に接続してなる、 ことを特徴とする多連スロットルボディの燃料配管構
造。
1. A unit throttle body having vertically arranged intake passages and equipped with injectors for injecting fuel into the intake passages, at least the unit throttle bodies being arranged to face each other. In the throttle body, the injector is a phase of the unit throttle body body.
Disposed in a direction away from the inner surface of the opposite side, the inner surface facing each other of the unit throttle body main
Ribs projecting out of phase with the injector, the ribs facing each other, the unit throttle bodies facing each other
A connecting rigid member arranged in parallel between the side members of the connecting rigid member
The main fuel passages are formed in the connecting rigid members, which are connected to each other through the stretched blades, and the branching members are arranged on the connecting rigid members so as to be detachably attached to each other in a direction in which they separate from each other. A sub fuel passage communicating with the main fuel passage is formed in the branch member, and a fuel inlet portion of the head of the injector is connected to the sub fuel passage of the branch member. Fuel piping structure.
【請求項2】スロットルボディ本体の側部のリブは上下
に2段に突設され、それぞれに連結剛材によって連結さ
れ、上部の連結剛材に主燃料通路が形成されてなる請求
項1に記載の多連スロットルボディの燃料配管構造。
2. The rib of the side portion of the throttle body main body is provided so as to project vertically in two steps, and each rib is connected by a connecting rigid member, and a main fuel passage is formed in the upper connecting rigid member. The fuel piping structure for the multiple throttle body described.
JP3351564A 1991-12-12 1991-12-12 Fuel piping structure for multiple throttle bodies Expired - Fee Related JP2559311B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3351564A JP2559311B2 (en) 1991-12-12 1991-12-12 Fuel piping structure for multiple throttle bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3351564A JP2559311B2 (en) 1991-12-12 1991-12-12 Fuel piping structure for multiple throttle bodies

Publications (2)

Publication Number Publication Date
JPH05164024A JPH05164024A (en) 1993-06-29
JP2559311B2 true JP2559311B2 (en) 1996-12-04

Family

ID=18418136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3351564A Expired - Fee Related JP2559311B2 (en) 1991-12-12 1991-12-12 Fuel piping structure for multiple throttle bodies

Country Status (1)

Country Link
JP (1) JP2559311B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2480668C (en) 2002-08-19 2009-11-24 Art Jen Complexus, Inc. Compositions comprising dietary fat complexer and methods for their use
JP5160492B2 (en) * 2009-03-27 2013-03-13 本田技研工業株式会社 V-type engine fuel supply system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56101054A (en) * 1980-01-18 1981-08-13 Yamaha Motor Co Ltd Engine for use in vehicle
US4570602A (en) * 1982-08-23 1986-02-18 General Motors Corporation Fuel rail
JPS6269072U (en) * 1985-10-21 1987-04-30
JPS63202769U (en) * 1987-06-18 1988-12-27
JPH0254359U (en) * 1988-10-12 1990-04-19
JPH0259252U (en) * 1988-10-21 1990-04-27

Also Published As

Publication number Publication date
JPH05164024A (en) 1993-06-29

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