JPH09264226A - Fuel distribution pipe - Google Patents
Fuel distribution pipeInfo
- Publication number
- JPH09264226A JPH09264226A JP8076157A JP7615796A JPH09264226A JP H09264226 A JPH09264226 A JP H09264226A JP 8076157 A JP8076157 A JP 8076157A JP 7615796 A JP7615796 A JP 7615796A JP H09264226 A JPH09264226 A JP H09264226A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- terminal
- distribution pipe
- injector
- fuel distribution
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、各気筒のインジェ
クタに燃料を分配する燃料分配管に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel distribution pipe for distributing fuel to injectors of each cylinder.
【０００２】[0002]
【従来の技術】従来より、各気筒のインジェクタに燃料
を分配する燃料分配管として、燃料分配管の外部から各
インジェクタ毎に給電線を配線し、インジェクタに設け
た受電コネクタに給電線の給電コネクタを接続するもの
が知られている。このような燃料分配管は、インジェク
タおよび給電線の接続部にそれぞれ受電コネクタおよび
給電コネクタが必要となるので製造工数が多く、製造コ
ストが高くなるという問題がある。また、各インジェク
タ毎に給電線を配線する必要があるので配線作業が煩雑
になるという問題がある。2. Description of the Related Art Conventionally, as a fuel distribution pipe for distributing fuel to injectors of respective cylinders, a power supply line is wired from the outside of the fuel distribution pipe for each injector, and a power supply connector of the power supply line is connected to a power receiving connector provided in the injector. Are known to connect. In such a fuel distribution pipe, a power receiving connector and a power feeding connector are required at a connecting portion of an injector and a power feeding line, respectively, so that there is a problem that the number of manufacturing steps is large and the manufacturing cost is high. Further, since it is necessary to wire the power supply line for each injector, there is a problem that the wiring work becomes complicated.
【０００３】このような燃料分配管の問題を解決するた
め、特公平３−３９１９４号公報に開示されているもの
では、燃料噴射信号を入力する入力コネクタとインジェ
クタの受電コネクタに接続する給電コネクタとを燃料分
配管に設け、入力コネクタと給電コネクタとを接続する
リード線を燃料分配管の本体内にインサート成形してい
る。したがって、リード線を配線する必要がなく燃料分
配管の燃料供給口にインジェクタの燃料入口を接続する
際に給電コネクタとインジェクタの受電コネクタが接続
するので燃料分配管へのインジェクタの組付けが容易に
なる。また、１ケ所の入力コネクタのみに外部から燃料
噴射信号入力用コネクタを接続するだけでよいので、配
線作業も容易である。In order to solve such a problem of the fuel distribution pipe, in the one disclosed in Japanese Patent Publication No. 3-39194, an input connector for inputting a fuel injection signal and a power feeding connector for connecting to a power receiving connector of an injector are provided. Is provided in the fuel distribution pipe, and the lead wire connecting the input connector and the power supply connector is insert-molded in the main body of the fuel distribution pipe. Therefore, it is not necessary to wire lead wires, and when connecting the fuel inlet of the injector to the fuel supply port of the fuel distribution pipe, the power supply connector and the power receiving connector of the injector are connected, so that the injector can be easily attached to the fuel distribution pipe. Become. Further, since it is only necessary to externally connect the fuel injection signal input connector to only one input connector, wiring work is easy.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、特公平
３−３９１９４号公報に開示されているような、入力コ
ネクタ、給電コネクタ、リード線等を燃料分配管の本体
にインサート成形するものでは、さらに燃料分配管製造
工数が増加するとともに製造コストが上昇するという問
題がある。また、配線作業を簡素化するとともにしかも
製造工数を削減するという両方の課題を解決する燃料分
配管は現在のところ提案されていない。本発明はこのよ
うな問題点に鑑みなされたもので、インジェクタと給電
線との接続構造を簡素化した低コストの燃料分配管を提
供することを目的とする。However, in the case where the input connector, the power supply connector, the lead wire and the like are insert-molded in the main body of the fuel distribution pipe as disclosed in Japanese Patent Publication No. 3-39194, further fuel is added. There is a problem that the manufacturing cost increases as the distribution pipe manufacturing man-hour increases. Further, at present, no fuel distribution pipe has been proposed that solves both the problems of simplifying the wiring work and reducing the number of manufacturing steps. The present invention has been made in view of such problems, and an object thereof is to provide a low-cost fuel distribution pipe in which the connection structure between the injector and the power supply line is simplified.
【０００５】本発明の他の目的は、さらに配線作業を簡
素化した燃料分配管を提供することにある。Another object of the present invention is to provide a fuel distribution pipe in which wiring work is further simplified.
【０００６】[0006]
【課題を解決するための手段】本発明の請求項１記載の
燃料分配管によると、燃料導入部に設けた端子接続部に
おいて、燃料導入部の外部を通って端子接続部に配線さ
れた給電線の給電端子とインジェクタの受電端子とが電
気的に接続することによりインジェクタと給電線との接
続構造が簡素化されインジェクタおよび給電線のコネク
タ部が不要となるので、製造工数が低下するとともに製
造コストが低下する。According to the fuel distribution pipe of the first aspect of the present invention, in the terminal connecting portion provided in the fuel introducing portion, the fuel is wired to the terminal connecting portion through the outside of the fuel introducing portion. By electrically connecting the power supply terminal of the electric wire and the power receiving terminal of the injector, the connection structure between the injector and the power supply line is simplified, and the connector part of the injector and the power supply line is not required. Cost is reduced.
【０００７】本発明の請求項２記載の燃料分配管による
と、給電端子と受電端子とが直接電気的に接続すること
により、端子接続部に受電端子と給電端子との接続を介
在する電気導通部材が不要になるので端子接続部の製造
工数および製造コストが低減する。本発明の請求項４記
載の燃料分配管によると、インジェクタの受電端子と給
電線の給電端子との接続が容易になるとともに、端子接
続部の製造も容易である。According to the fuel distribution pipe of the second aspect of the present invention, the power supply terminal and the power reception terminal are directly electrically connected to each other, so that the terminal connection portion is electrically conductive with the connection between the power reception terminal and the power supply terminal interposed. Since no member is required, the number of manufacturing steps and the manufacturing cost of the terminal connecting portion are reduced. According to the fuel distribution pipe of the fourth aspect of the present invention, the connection between the power receiving terminal of the injector and the power feeding terminal of the power feeding line is facilitated, and the terminal connection portion is easily manufactured.
【０００８】本発明の請求項５記載の燃料分配管による
と、燃料分配管とインジェクタへの給電部とが一体に成
形されているので、燃料分配管と別体に給電端子および
受電端子のコネクタを製造する必要がなく製造工数が低
下するとともに製造コストが低下する。本発明の請求項
６記載の燃料分配管によると、凸部と凹部との係合によ
り端子接続部に受電端子が位置決めされるので、インジ
ェクタと給電線とを容易に電気接続できる。According to the fuel distribution pipe of claim 5 of the present invention, since the fuel distribution pipe and the power supply portion to the injector are integrally formed, the connector of the power supply terminal and the power reception terminal is formed separately from the fuel distribution pipe. Since it is not necessary to manufacture, the number of manufacturing steps is reduced and the manufacturing cost is reduced. According to the fuel distribution pipe of claim 6 of the present invention, the power receiving terminal is positioned in the terminal connecting portion by the engagement of the convex portion and the concave portion, so that the injector and the power supply line can be easily electrically connected.
【０００９】本発明の請求項７記載の燃料分配管による
と、信号供給源と各給電線とが一つの入力コネクタによ
り接続できるので配線作業が簡素化できる。According to the fuel distribution pipe of claim 7 of the present invention, since the signal supply source and each power supply line can be connected by one input connector, the wiring work can be simplified.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施例を図面に基
づいて説明する。 （第１実施例）本発明の第１実施例を図１、図２および
図３に示す。図１に示すように、燃料分配管１０は、燃
料導入部としての筒部１１、燃料供給口１４、端子接続
部としてのガイド部１５および位置決めガイドとしての
開口部１６からなり、絶縁性および断熱性に優れた合成
樹脂あるいは合成樹脂系の材料で一体成形されている。
合成樹脂材としては、ナイロン、ポリフェニレンサルフ
ァイド等が用いられる。また、複合材料として、前記合
成樹脂にガラス繊維や板状のシリカ等の無機充填材を強
化材として混合したものを用いてもよい。Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) A first embodiment of the present invention is shown in FIGS. 1, 2 and 3. As shown in FIG. 1, the fuel distribution pipe 10 includes a tubular portion 11 serving as a fuel introduction portion, a fuel supply port 14, a guide portion 15 serving as a terminal connecting portion, and an opening portion 16 serving as a positioning guide. It is integrally molded of synthetic resin or synthetic resin material with excellent properties.
Nylon, polyphenylene sulfide, etc. are used as the synthetic resin material. Further, as the composite material, a material obtained by mixing the synthetic resin with an inorganic filler such as glass fiber or plate-like silica as a reinforcing material may be used.
【００１１】図２に示すように、筒部１１は一方を閉塞
した円筒状に成形されており、筒部１１に設けられたブ
ラケット部１２により燃料分配管１０はボルト等でエン
ジンに固定されている。筒部１１の他方の端部には供給
管接続部１３が設けられており、この供給管接続部１３
と図示しない燃料ポンプとは燃料供給管により接続され
ている。燃料ポンプから供給される燃料は、燃料供給
管、供給管接続部１３を経て筒部１１内の図１に示す供
給通路４１に導入される。また、筒部１１内の燃料脈動
を抑制するため、図２に示す公知のダンパ６０が筒部１
１に取付けられている。As shown in FIG. 2, the tubular portion 11 is formed in a cylindrical shape with one side closed, and the fuel distribution pipe 10 is fixed to the engine by bolts or the like by a bracket portion 12 provided on the tubular portion 11. There is. A supply pipe connection portion 13 is provided at the other end of the cylindrical portion 11.
And a fuel pump (not shown) are connected by a fuel supply pipe. Fuel supplied from the fuel pump is introduced into the supply passage 41 shown in FIG. Further, in order to suppress fuel pulsation in the cylindrical portion 11, a known damper 60 shown in FIG.
1 is attached.
【００１２】入力用コネクタ３０は、図示しないエンジ
ン制御装置（以下、「エンジン制御装置」をＥＣＵとい
う）からの一本の信号用ケーブルと給電線としてのワイ
ヤハーネス３１とを接続し、入力用コネクタ３０からワ
イヤハーネス３１を経て図１に示すインジェクタ２０に
燃料噴射信号が送出される。エンジンの各気筒の吸気マ
ニホールドに燃料を噴射するインジェクタ２０は、開口
部１６および燃料供給口１４に挿入されており、供給通
路４１から各燃料供給口１４内に形成された分配通路４
２に分配された燃料が各インジェクタ２０に供給され
る。燃料供給口１４の内壁とインジェクタ２０の燃料入
口２２の外壁とはＯリング５１でシールされている。The input connector 30 connects one signal cable from an unillustrated engine control device (hereinafter, "engine control device" is referred to as ECU) and a wire harness 31 as a power supply line, and the input connector 30 is connected. A fuel injection signal is sent from 30 to the injector 20 shown in FIG. The injector 20 for injecting fuel into the intake manifold of each cylinder of the engine is inserted into the opening 16 and the fuel supply port 14, and the distribution passage 4 formed in the fuel supply port 14 from the supply passage 41.
The fuel divided into two is supplied to each injector 20. The inner wall of the fuel supply port 14 and the outer wall of the fuel inlet 22 of the injector 20 are sealed by an O-ring 51.
【００１３】筒部１１の各燃料供給口１４近傍には、燃
料供給口１４と一部を共有したガイド部１５が一体成形
されている。ガイド部１５には貫通孔１５ａが形成され
ており、ワイヤハーネス３１およびインジェクタ２０を
燃料分配管１０に組付ける前の状態では、貫通孔１５ａ
は中空である。ガイド部１５は、給電端子３２および受
電端子２１が貫通孔１５ａにそれぞれ逆方向から挿入さ
れる際に給電端子３２および受電端子２１を案内する位
置に設けられている。後述する矩形部１６ｂと矩形部２
０ｂとの係合により貫通孔１５ａと受電端子２１との相
対位置が決まり、また受電端子２１に対応する位置にガ
イド部１５が設けられているので、インジェクタ２０を
開口部１６に合わせて挿入するだけで電気接続をスムー
ズに行うことが可能になるワイヤハーネス３１の電線３
１ａの先端およびシール部材５２は給電端子３２により
かしめ固定されている。シール部材５２は円筒状に形成
されており、貫通孔１５ａにワイヤハーネス３１を挿入
する前の状態で、シール部材５２の外径は貫通孔１５ａ
の径よりも僅かに大きくなるように設定されている。ま
た、シール部材５３は円板状に形成されており、受電端
子２１に挿入されている。In the vicinity of each fuel supply port 14 of the tubular portion 11, a guide part 15 which shares a part with the fuel supply port 14 is integrally formed. A through hole 15a is formed in the guide portion 15, and the through hole 15a is formed in a state before the wire harness 31 and the injector 20 are assembled to the fuel distribution pipe 10.
Is hollow. The guide portion 15 is provided at a position to guide the power feeding terminal 32 and the power receiving terminal 21 when the power feeding terminal 32 and the power receiving terminal 21 are inserted into the through holes 15a from the opposite directions, respectively. Rectangular part 16b and rectangular part 2 described later
The relative position between the through hole 15a and the power receiving terminal 21 is determined by the engagement with 0b, and the guide portion 15 is provided at a position corresponding to the power receiving terminal 21, so that the injector 20 is inserted in alignment with the opening 16. Wire 3 of the wire harness 31 that enables smooth electrical connection just by
The tip of 1a and the seal member 52 are caulked and fixed by the power supply terminal 32. The seal member 52 is formed in a cylindrical shape, and the outer diameter of the seal member 52 is the through hole 15a before the wire harness 31 is inserted into the through hole 15a.
It is set to be slightly larger than the diameter of. Further, the seal member 53 is formed in a disc shape and is inserted into the power receiving terminal 21.
【００１４】燃料分配管１０にインジェクタ２０および
ワイヤハーネス３１を組付けた図１に示す状態では、イ
ンジェクタ２０の受電端子２１とワイヤハーネス３１の
給電端子３２とがガイド部１５の貫通孔１５ａで電気的
に接続している。シール部材５２は弾性力をもってガイ
ド部１５とワイヤハーネス３１との間で圧縮されてお
り、図１に示す貫通孔１５ａの上方から塵や水が端子の
電気接続部に進入することを防止している。シール部材
５３はガイド部１５の下方端面とインジェクタ２０との
間に挟持され弾性力をもって圧縮されているので、開口
部１６とインジェクタ２０との間に形成される隙間から
端子の電気接続部に塵や水が進入することを防止してい
る。In the state shown in FIG. 1 in which the injector 20 and the wire harness 31 are assembled to the fuel distribution pipe 10, the power receiving terminal 21 of the injector 20 and the power feeding terminal 32 of the wire harness 31 are electrically connected to each other through the through hole 15a of the guide portion 15. Connected to each other. The seal member 52 is compressed by the elastic force between the guide portion 15 and the wire harness 31, and prevents dust and water from entering the electric connection portion of the terminal from above the through hole 15a shown in FIG. There is. Since the seal member 53 is sandwiched between the lower end surface of the guide portion 15 and the injector 20 and is compressed by the elastic force, dust is discharged from the gap formed between the opening portion 16 and the injector 20 to the electrical connection portion of the terminal. It also prevents water and water from entering.
【００１５】前述したように燃料分配管１０は絶縁性に
優れた合成樹脂等で形成されているため、給電端子３
２、受電端子２１、および給電端子３２と受電端子２１
との電気接続部に特に絶縁処理を施す必要はない。図３
に示すように、燃料分配管１０の開口部１６とインジェ
クタ２０とは僅かな隙間で嵌合している。開口部１６と
嵌合する部分のインジェクタ２０の断面形状は円形部２
０ａおよび凸部としての矩形部２０ｂからなり、開口部
１６の断面形状も円形部１６ａおよび凸部としての矩形
部１６ｂからなる。したがって、燃料分配管１０にイン
ジェクタ２０を組付けた状態では、図３に示すようにイ
ンジェクタ２０の矩形部２０ｂと開口部１６の矩形部１
６ｂとが噛み合うことによりインジェクタ２０の回転お
よび軸からのずれが規制されている。これにより、イン
ジェクタ２０から各気筒の吸気マニホールドに噴射され
る燃料噴射方向が一定するので、エンジンの吸気バルブ
に向け所望の位置に燃料を噴射することができる。As described above, since the fuel distribution pipe 10 is made of synthetic resin or the like having excellent insulation properties, the power supply terminal 3
2, power receiving terminal 21, and power feeding terminal 32 and power receiving terminal 21
It is not necessary to particularly insulate the electrical connection part with the. FIG.
As shown in, the opening 16 of the fuel distribution pipe 10 and the injector 20 are fitted with each other with a slight gap. The cross-sectional shape of the injector 20 that fits into the opening 16 has a circular portion 2.
0a and a rectangular portion 20b as a convex portion, and the cross-sectional shape of the opening 16 also includes a circular portion 16a and a rectangular portion 16b as a convex portion. Therefore, in the state where the injector 20 is assembled to the fuel distribution pipe 10, the rectangular portion 20b of the injector 20 and the rectangular portion 1 of the opening 16 are provided as shown in FIG.
The rotation of the injector 20 and the deviation from the shaft are regulated by meshing with 6b. As a result, the direction of fuel injection from the injector 20 to the intake manifold of each cylinder is constant, so that fuel can be injected to a desired position toward the intake valve of the engine.
【００１６】（第２実施例）本発明の第２実施例を図４
に示す。第２実施例では、第１実施例の円板状のシール
部材５３に代え、円筒状のシール部材５４を用いてい
る。シール部材５４は、インジェクタ７０に設けた円筒
状の凸部７１に嵌め込まれ、燃料分配管１０にインジェ
クタ７０を組付けた状態で、端子接続部としてのガイド
部７２の内周壁とインジェクタ７０の外周壁との間で弾
性力をもって圧縮されるので、塵や水が端子の電気接続
部に進入することを防止する。(Second Embodiment) A second embodiment of the present invention is shown in FIG.
Shown in In the second embodiment, a cylindrical seal member 54 is used instead of the disc-shaped seal member 53 of the first embodiment. The seal member 54 is fitted into a cylindrical convex portion 71 provided on the injector 70, and in a state where the injector 70 is assembled to the fuel distribution pipe 10, the inner peripheral wall of the guide portion 72 as the terminal connecting portion and the outer periphery of the injector 70. It is elastically compressed against the walls, preventing dust and water from entering the electrical connections of the terminals.
【００１７】以上説明した本発明の上記実施例では、給
電線の給電端子およびインジェクタの受電端子が案内さ
れ貫通孔で電気的に接続するガイド部を筒部と一体に成
形したことにより、給電端子と受電端子との接続用のコ
ネクタを燃料分配管と別体に製造する必要がないので、
製造工数が低下するとともに製造コストが低下する。さ
らに、一体成形された以外の部品、例えば入力用コネク
タ３０、ワイヤハーネス３１、給電端子３２、シール部
材５２等は標準部品を使用可能であるため、新規に部品
を製造する必要がないので製造コストをさらに低下する
ことができる。In the above-described embodiment of the present invention described above, since the power feeding terminal of the power feeding line and the power receiving terminal of the injector are guided and electrically connected through the through hole, the guide portion is integrally formed with the tubular portion. Since it is not necessary to manufacture the connector for connecting the power receiving terminal with the fuel distribution pipe separately,
The number of manufacturing steps is reduced and the manufacturing cost is reduced. Further, since the standard components can be used for the components other than the integrally molded component, such as the input connector 30, the wire harness 31, the power supply terminal 32, and the seal member 52, it is not necessary to newly fabricate the components, so that the manufacturing cost can be reduced. Can be further reduced.
【００１８】また本実施例では、断熱性に優れた合成樹
脂あるいは断熱性に優れた合成樹脂の複合材料で燃料分
配管を一体成形したことにより、燃料分配管をエンジン
の近くに配設しても燃料分配管内の燃料への熱伝導を抑
制できるので、燃料分配管内の燃料が気化することを防
止できる。したがって、インジェクタに供給する燃料圧
力の低下を防止しインジェクタへの燃料供給量を所定量
に保持できる。Further, in this embodiment, the fuel distribution pipe is integrally formed of a synthetic resin having excellent heat insulating property or a composite material having excellent heat insulating property, so that the fuel distribution pipe is arranged near the engine. Also, since heat conduction to the fuel in the fuel distribution pipe can be suppressed, the fuel in the fuel distribution pipe can be prevented from vaporizing. Therefore, it is possible to prevent the fuel pressure supplied to the injector from decreasing and to keep the fuel supply amount to the injector at a predetermined amount.
【００１９】また本実施例では、複数の燃料供給口を有
する燃料分配管を一体成形し、燃料供給口にインジェク
タを組付けた状態で吸気マニホールドに組付けることが
できるので、吸気マニホールドへのインジェクタの組付
けが容易になる。さらにまた、給電線と接続した給電端
子を予めガイド部にインサート成形しておき、燃料供給
口にインジェクタを組付け、インジェクタの受電端子と
ガイド部の給電端子とを接続することも可能である。Further, in this embodiment, the fuel distribution pipe having a plurality of fuel supply ports can be integrally molded, and the fuel supply port can be assembled to the intake manifold with the injector attached. Assembly becomes easy. Furthermore, it is also possible to insert-mold the power supply terminal connected to the power supply line in advance in the guide part, assemble the injector to the fuel supply port, and connect the power receiving terminal of the injector and the power supply terminal of the guide part.
【００２０】さらにまた、開口部および開口部と噛み合
うインジェクタの形状は、燃料供給口にインジェクタを
組付けた後のインジェクタの回転を規制するのであれ
ば、どのような形状を採用することも可能である。Furthermore, the shape of the opening and the injector meshing with the opening may be any shape as long as the rotation of the injector after the injector is assembled to the fuel supply port is restricted. is there.
【図１】本発明の第１実施例による燃料分配管を示す図
２のＩ−Ｉ線断面図である。1 is a sectional view taken along line II of FIG. 2 showing a fuel distribution pipe according to a first embodiment of the present invention.
【図２】本発明の第１実施例による燃料分配管を示す平
面図である。FIG. 2 is a plan view showing a fuel distribution pipe according to the first embodiment of the present invention.
【図３】図１のIII −III 線断面図である。3 is a sectional view taken along line III-III in FIG.
【図４】本発明の第２実施例による燃料分配管を示す断
面図である。FIG. 4 is a sectional view showing a fuel distribution pipe according to a second embodiment of the present invention.
１０ 燃料分配管 １１ 筒部（燃料導入部） １２ ブラケット部 １５ ガイド部（端子接続部） １６ 開口部（位置決めガイド） ２０ インジェクタ ２１ 受電端子 ３０ 入力用コネクタ ３１ ワイヤハーネス（給電線） ３２ 給電端子 ４１ 共通通路 ４２ 分配通路 10 Fuel Distribution Pipe 11 Cylindrical Part (Fuel Introducing Part) 12 Bracket Part 15 Guide Part (Terminal Connection Part) 16 Opening Part (Positioning Guide) 20 Injector 21 Power Receiving Terminal 30 Input Connector 31 Wire Harness (Power Supply Line) 32 Power Supply Terminal 41 Common passage 42 Distribution passage
Claims (7)
導入された燃料を分配する複数の燃料供給口を有し、前
記複数の燃料供給口にそれぞれ接続する電磁制御式のイ
ンジェクタに前記燃料供給口から燃料を供給する燃料分
配管において、 前記燃料供給口毎に前記燃料導入部に一体に設けられる
端子接続部であって、前記燃料導入部の外部を通って前
記端子接続部に配線される給電線の給電端子を案内する
とともに、前記燃料供給口に前記インジェクタを接続す
る際に前記インジェクタとともに同一方向に移動する前
記インジェクタの受電端子を案内し、前記給電端子と前
記受電端子とが電気的に接続する端子接続部を備えるこ
とを特徴とする燃料分配管。1. A fuel introduction part, and a plurality of fuel supply ports for distributing the fuel introduced into the fuel introduction part, wherein the fuel is supplied to an electromagnetically controlled injector connected to each of the plurality of fuel supply ports. In a fuel distribution pipe for supplying fuel from a port, a terminal connecting part is integrally provided in the fuel introducing part for each of the fuel supplying ports, and is wired to the terminal connecting part through the outside of the fuel introducing part. Guides the power supply terminal of the power supply line and guides the power receiving terminal of the injector that moves in the same direction together with the injector when the injector is connected to the fuel supply port, and the power supply terminal and the power receiving terminal are electrically connected. A fuel distribution pipe comprising a terminal connecting portion connected to the fuel distribution pipe.
子接続部内で直接電気的に接続することを特徴とする請
求項１記載の燃料分配管。2. The fuel distribution pipe according to claim 1, wherein the power feeding terminal and the power receiving terminal are electrically connected directly in the terminal connecting portion.
接続方向は、前記給電端子が前記端子接続部に案内され
る方向と逆方向であることを特徴とする請求項１または
２記載の燃料分配管。3. The fuel component according to claim 1, wherein the injector is connected to the fuel supply port in a direction opposite to a direction in which the power supply terminal is guided to the terminal connection portion. Piping.
前記受電端子がそれぞれ逆方向から挿入される貫通孔を
有することを特徴とする請求項１、２または３記載の燃
料分配管。4. The fuel distribution pipe according to claim 1, 2, or 3, wherein the terminal connecting portion has through holes into which the power feeding terminal and the power receiving terminal are inserted from opposite directions.
導入された燃料を分配する複数の燃料供給口を有し、前
記複数の燃料供給口にそれぞれ接続する電磁制御式のイ
ンジェクタに前記燃料供給口から燃料を供給する燃料分
配管において、 前記インジェクタの受電端子と電気的に接続する給電端
子を有し、前記燃料供給口毎に前記燃料導入部に一体に
設けられる端子接続部と、 前記燃料導入部の外部を通って前記端子接続部に配線さ
れ前記給電端子と電気的に接続されている給電線と、 を備えることを特徴とする燃料分配管。5. A fuel introduction part, and a plurality of fuel supply ports for distributing the fuel introduced into the fuel introduction part, wherein the fuel is supplied to an electromagnetically controlled injector connected to each of the plurality of fuel supply ports. A fuel distribution pipe for supplying fuel from a port, having a power supply terminal electrically connected to a power receiving terminal of the injector, and a terminal connection part integrally provided in the fuel introduction part for each of the fuel supply ports; A fuel supply line that is wired to the terminal connection part through the outside of the introduction part and is electrically connected to the power supply terminal.
凸部が形成され、前記燃料導入部には前記凸部に係合す
る凹部が形成され、前記凸部と前記凹部が係合した状態
で前記端子接続部は前記受電端子に対応する位置に形成
されていることを特徴とする請求項１〜５のいずれか一
項記載の燃料分配管。6. The injector is formed with a convex portion protruding in a radial direction, the fuel introducing portion is formed with a concave portion that engages with the convex portion, and the convex portion and the concave portion are engaged with each other. The fuel distribution pipe according to any one of claims 1 to 5, wherein the terminal connecting portion is formed at a position corresponding to the power receiving terminal.
コネクタに接続されていることを特徴とする請求項１〜
６のいずれか一項記載の燃料分配管。7. The non-feeding terminal side of the feeding line is connected to one input connector.
6. The fuel distribution pipe according to any one of 6 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07615796A JP3820619B2 (en) | 1996-03-29 | 1996-03-29 | Fuel distribution pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07615796A JP3820619B2 (en) | 1996-03-29 | 1996-03-29 | Fuel distribution pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09264226A true JPH09264226A (en) | 1997-10-07 |
| JP3820619B2 JP3820619B2 (en) | 2006-09-13 |
Family
ID=13597223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07615796A Expired - Fee Related JP3820619B2 (en) | 1996-03-29 | 1996-03-29 | Fuel distribution pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3820619B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1201914A1 (en) * | 2000-10-25 | 2002-05-02 | Siemens Automotive Inc. | Wiring connection for fuel injectors |
| JP2010127202A (en) * | 2008-11-28 | 2010-06-10 | Denso Corp | Injector |
| JP2012136984A (en) * | 2010-12-24 | 2012-07-19 | Mitsuba Corp | Fuel supply device |
-
1996
- 1996-03-29 JP JP07615796A patent/JP3820619B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1201914A1 (en) * | 2000-10-25 | 2002-05-02 | Siemens Automotive Inc. | Wiring connection for fuel injectors |
| US6502552B2 (en) | 2000-10-25 | 2003-01-07 | Siemens Vdo Automotne Inc. | Wiring connection for fuel injectors |
| JP2010127202A (en) * | 2008-11-28 | 2010-06-10 | Denso Corp | Injector |
| JP2012136984A (en) * | 2010-12-24 | 2012-07-19 | Mitsuba Corp | Fuel supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3820619B2 (en) | 2006-09-13 |
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