JPS6043163A - Fuel supplying device - Google Patents

Fuel supplying device

Info

Publication number
JPS6043163A
JPS6043163A JP58152065A JP15206583A JPS6043163A JP S6043163 A JPS6043163 A JP S6043163A JP 58152065 A JP58152065 A JP 58152065A JP 15206583 A JP15206583 A JP 15206583A JP S6043163 A JPS6043163 A JP S6043163A
Authority
JP
Japan
Prior art keywords
fuel
distribution pipe
synthetic resin
pressure
supply device
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.)
Pending
Application number
JP58152065A
Other languages
Japanese (ja)
Inventor
Katsuki Ito
伊藤 勝樹
Shigeki Chimura
千村 繁樹
Hiroshi Yamazoe
山添 博志
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP58152065A priority Critical patent/JPS6043163A/en
Publication of JPS6043163A publication Critical patent/JPS6043163A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/462Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F02M69/465Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails

Abstract

PURPOSE:To restrict evaporation of fuel and improve resistance to vibration by a method wherein a fuel distributing pipe, distributing the fuel sent from a fuel pump by pressure to respective fuel injection valves, is formed by synthetic resin. CONSTITUTION:The fuel in a fuel tank 1 is pumped by an electric fuel pump to a tubular fuel distributing pipe 10 through a fuel filter 3 to distribute it to respective fuel injection valves 5. The fuel distributing pipe 10 is provided with a fuel inlet port 11, a return port 12, and a fuel outlet port 13, into which the fuel injection valve 5 is inserted and attached, and is formed by synthetic resin or synthetic resin type composite material such as nylon 66, polyselenium sulfide or the like. A fuel damper 20, restricting the pulsation of the fuel, is accommodated in the left end of the fuel distributing pipe 10 while a fuel pressure regulator 40, regulating the pressure of the fuel, is accommodated at the right end of the same pipe 10 and is welded thereto by fusion welding.

Description

【発明の詳細な説明】 この発明は、内燃機関に燃料を供給するための燃料イ」
(線装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides a fuel engine for supplying fuel to an internal combustion engine.
(Regarding line equipment.

従来、燃料ポンプから圧送された燃料を各燃料噴射弁へ
分配するための燃料分配管は、アルミニウム等の金属材
料で構成されており、このために機関からの熱伝導によ
り分配管の内部で燃料の気化が生じ、噴射効率が低下し
てしまうという問題がある。
Conventionally, fuel distribution pipes for distributing fuel pressure-fed from a fuel pump to each fuel injection valve are made of metal materials such as aluminum, and because of this, the fuel is transferred inside the distribution pipe by heat conduction from the engine. There is a problem that vaporization occurs and injection efficiency decreases.

また、燃料ダンパ、燃料圧力レギュレータ等の燃料制御
機器は、金属の分配管にねじ込みにより取付けられてお
り、分配管からの突出量が大きく耐振状好ましくない。
Furthermore, fuel control devices such as fuel dampers and fuel pressure regulators are screwed into metal distribution pipes, and their protrusion from the distribution pipes is large, making them unfavorable for vibration resistance.

この発明は、上記の点に鑑みなされたもので、燃料分配
管を合成樹脂又は合成樹脂系複合材料により成形・構成
することにより、燃料の気化を抑止し、噴射効率の低下
防止を第1の目的とする。
This invention was made in view of the above points, and the first aspect of the invention is to suppress fuel vaporization and prevent a decrease in injection efficiency by molding and constructing the fuel distribution pipe from synthetic resin or synthetic resin composite material. purpose.

また、燃料制御機器を燃料分配管内に内包させ、溶着に
より分配管に結合させることにより突出部をなくし、耐
振性能を向上させることを第2の目的とする。
A second objective is to eliminate protrusions and improve vibration resistance by enclosing the fuel control device within the fuel distribution pipe and joining it to the distribution pipe by welding.

以下この発明を図に示す実施例により説明する。The present invention will be explained below with reference to embodiments shown in the drawings.

全体構成を示す第1図において、燃料は燃料タンク1か
ら電動式燃料ポンプ2により圧送される構成となってお
り、タンク1とポンプ2の間には燃料フィルタ3が配設
されている。
In FIG. 1 showing the overall configuration, fuel is pumped from a fuel tank 1 by an electric fuel pump 2, and a fuel filter 3 is disposed between the tank 1 and the pump 2.

圧送された燃料は、燃料分配管10に導入され、ここか
ら各燃料呟射弁5に分配される。
The pressure-fed fuel is introduced into the fuel distribution pipe 10 and distributed to each fuel injection valve 5 from here.

燃料分配管10は、はぼ円筒形状のもので、燃料人口1
1、余剰燃料をタンクlへ戻すための戻し1112、燃
料喰射弁5が挿入装着される燃料用1113が形成され
ている。この燃料分配管10は、ナイロン66、ポリセ
ーセンサルファイト等の合成樹脂あるいはこの合成樹脂
に強化材としてガラス繊維及び/又は板状のシリカ等の
無機充填材を混合した合成樹脂系複合材料によって成形
されている。
The fuel distribution pipe 10 has a cylindrical shape and has a fuel population of 1
1. A return 1112 for returning surplus fuel to the tank l, and a fuel 1113 into which the fuel injection valve 5 is inserted and mounted are formed. This fuel distribution pipe 10 is made of a synthetic resin such as nylon 66 or polysaccharide sulfite, or a synthetic resin composite material in which this synthetic resin is mixed with an inorganic filler such as glass fiber and/or plate-shaped silica as a reinforcing material. Molded.

燃料分配管10の左端には、燃料の脈動を制御抑制する
燃料ダンパ20が管内に内包され、溶着されており、一
方右端には燃料の圧力を制御調整する燃料圧力レギュレ
ータ40が管内に内包され、溶着されている。なお、レ
ギュレータ40には機関の吸気管負圧Vが導入される。
At the left end of the fuel distribution pipe 10, a fuel damper 20 for controlling and suppressing fuel pulsation is enclosed and welded to the pipe, while at the right end, a fuel pressure regulator 40 for controlling and adjusting the fuel pressure is enclosed within the pipe. , welded. Note that the intake pipe negative pressure V of the engine is introduced into the regulator 40 .

燃料分配管10の左端を拡大して示す第2図において、
燃料ダンパ20は、円曲形状のハウジング21、キャッ
プ22、ダイヤフラム23、端板24、コイルばね25
、及びばね受26から構成されている。
In FIG. 2 showing an enlarged view of the left end of the fuel distribution pipe 10,
The fuel damper 20 includes a circular housing 21, a cap 22, a diaphragm 23, an end plate 24, and a coil spring 25.
, and a spring receiver 26.

ハウシング21及びキャップ22は、分配管10と同一
の材料で成形されており、ハウジング21は分配管10
の内径を拡大した部分に挿入され、矢印Aで示す部分に
おいて分配管10に超音波溶着されている。
The housing 21 and the cap 22 are made of the same material as the distribution pipe 10, and the housing 21 is made of the same material as the distribution pipe 10.
It is inserted into the enlarged inner diameter part of the pipe 10, and is ultrasonically welded to the distribution pipe 10 at the part indicated by arrow A.

−した、ギャップ22は矢印Bで示ず部分においてハウ
シング21に超音波溶着されており、中央部に空気抜き
孔27が形成されている。
-, the gap 22 is ultrasonically welded to the housing 21 at a portion not indicated by arrow B, and an air vent hole 27 is formed in the center.

ダイヤフラム23は、分配管10の燃料室14と、空気
室28とを分割している。またダイヤフラム23は端部
にリブ29が形成されており、このリブ29は分配管1
0のステップ部分に形成された円形の溝15に挿入され
、この部分で燃料のシールを行っている。
The diaphragm 23 divides the fuel chamber 14 and the air chamber 28 of the distribution pipe 10. Furthermore, a rib 29 is formed at the end of the diaphragm 23, and this rib 29 is formed in the distribution pipe 1.
It is inserted into a circular groove 15 formed in the step part of the 0, and seals the fuel in this part.

ばね受26は、タイヤフラム23を挟んで端板24がか
しめ固定されてC)る。またばね受26はりl周部かハ
ウジング21のステップ部30と当接するように構成さ
れており、これによりダイヤフラム23の動きを規制す
るストッパ作用をなす。
The end plate 24 of the spring receiver 26 is fixed by caulking with the tire flam 23 in between. Further, the spring receiver 26 is configured so that its peripheral portion comes into contact with the step portion 30 of the housing 21, thereby acting as a stopper to restrict the movement of the diaphragm 23.

ばね25は、空気室28内に設けられており、ダイヤフ
ラム23を図中右方に付勢している。
The spring 25 is provided within the air chamber 28 and urges the diaphragm 23 to the right in the figure.

燃料分配管10の右b::lを拡大して示す第3図にお
いて、燃料圧力レキュレータ40は、円曲形状のハウシ
ング41、キ、トップ42、ダイヤフラム43、弁体4
4、弁座部材45、コイルばね46、及びばね受47か
ら構成されている。
In FIG. 3, which shows an enlarged view of the right b::l of the fuel distribution pipe 10, the fuel pressure regulator 40 includes a circular housing 41, a top 42, a diaphragm 43, and a valve body 4.
4, a valve seat member 45, a coil spring 46, and a spring receiver 47.

ハウジング41及びキャップ42は、分配管10と同一
の材料で成形されており、ハウジング41は分配管10
の内径を拡大した部分に挿入され、矢印Cで示す部分に
おいて分配管10に超音波溶着され′(いる。
The housing 41 and the cap 42 are made of the same material as the distribution pipe 10, and the housing 41 is made of the same material as the distribution pipe 10.
It is inserted into the enlarged inner diameter part of the tube, and is ultrasonically welded to the distribution pipe 10 at the part indicated by arrow C.

また、キャップ42は矢印りで示ず部分においてハウジ
ング41に超音波溶着されており、中央部に吸気1を負
圧を導入するため負圧孔48が形成されている。
Further, the cap 42 is ultrasonically welded to the housing 41 at a portion not indicated by an arrow, and a negative pressure hole 48 is formed in the center portion for introducing negative pressure into the intake air 1.

ダイヤフラム43は、分配管10の燃料室14と負圧室
49とを分割している。またダイヤフラム43はfls
11部にリブ50が形成されており、このリフ50は分
配管50のステップ部分に形成された円形の溝16に挿
入され、この部分で燃料のシールを行っている。
The diaphragm 43 divides the fuel chamber 14 and the negative pressure chamber 49 of the distribution pipe 10. Also, the diaphragm 43 is fls
A rib 50 is formed at part 11, and this rib 50 is inserted into a circular groove 16 formed in the step part of the distribution pipe 50, and seals the fuel in this part.

介)上部材45は、はぼ管状であつ°ζフランジ部を有
しており、0リング51を介して分配管10の燃)、I
戻し口12の部分に挿入固定されている。
The upper member 45 is tubular in shape and has a flange portion, and is connected to the distribution pipe 10 via the O-ring 51.
It is inserted and fixed in the return port 12 part.

この燃料戻し口12の部分は燃料室14の中央部まで突
出しており、弁座部材45が弁体44と対向するように
なっている。
The fuel return port 12 protrudes to the center of the fuel chamber 14 so that the valve seat member 45 faces the valve body 44.

弁体44は、ボール52に固定され、このボール52に
より支持体53に対して回動可能なように支持されてい
る。
The valve body 44 is fixed to a ball 52 and supported by the ball 52 so as to be rotatable with respect to a support body 53 .

ばね受47はダイヤフラム43を挟んで支持体53とか
しめ固定されており、ここにばね46が設けられている
。このばね46はダイヤフラム43を図中左方に付勢し
ている。
The spring receiver 47 is caulked and fixed to the support body 53 with the diaphragm 43 in between, and the spring 46 is provided here. This spring 46 urges the diaphragm 43 to the left in the figure.

上記構成において、燃料分配管IOは図示しない機関の
近傍に設置されるが、分配管10が合成樹脂又は合成樹
脂系複合材料で成形されているため、これが断熱材とな
り、機関の熱が分配性10内の燃料に伝達され難く、分
配管10内にて燃料が高温に気化するのを防止でき、こ
の結果燃料噴射効率の低下を抑止できる。
In the above configuration, the fuel distribution pipe IO is installed near the engine (not shown), but since the distribution pipe 10 is made of synthetic resin or synthetic resin composite material, it acts as a heat insulator, and the heat of the engine is distributed easily. It is difficult for the fuel to be transmitted to the fuel in the distribution pipe 10, and it is possible to prevent the fuel from vaporizing at a high temperature in the distribution pipe 10, and as a result, it is possible to suppress a decrease in fuel injection efficiency.

また、燃料ダンパ20においては、燃料圧力が常時ダイ
ヤフラム23に作用しており、ばね25のセソI・荷重
とつり合っている。そして、ポンプ2よりの流れ及び噴
射弁5作動時の脈動をこのダイヤフラム43の移動によ
り吸収する。
Further, in the fuel damper 20, fuel pressure is always acting on the diaphragm 23, and is balanced with the load of the spring 25. The flow from the pump 2 and the pulsation when the injection valve 5 is activated are absorbed by the movement of the diaphragm 43.

ここで、燃料ダンパ20は分配管10内に内包されてお
り、、溶着により分配管10に固定されているので、従
来の結合方法に化べて部品数を低減でき、突出部をなく
すことができて、耐振性能及びシール性能が向上する。
Here, since the fuel damper 20 is contained within the distribution pipe 10 and is fixed to the distribution pipe 10 by welding, the number of parts can be reduced by using the conventional coupling method, and the protrusion can be eliminated. This improves vibration resistance and sealing performance.

また、燃料圧力レギュレータ4oにおいては、燃料室1
4の圧力が常時ダイヤフラム43に作用しており、この
圧力が所定値より高くなると弁体44か弁座45を開き
、余剰の燃料をタンク1へ逃がして燃料圧力を調整する
Furthermore, in the fuel pressure regulator 4o, the fuel chamber 1
4 is always acting on the diaphragm 43, and when this pressure becomes higher than a predetermined value, the valve element 44 or the valve seat 45 is opened to release excess fuel to the tank 1 and adjust the fuel pressure.

ここで、レギュレータ40も、ダンパ20と同様に分配
管lO内に内包されており、溶着により分配管10に固
定されているので、従来の結合方法に比べてnl、X品
数を低減でき、突出部を負圧孔48の部分を除いて、な
くすことができて、liJ振性硫性能シール性能か向上
する。
Here, like the damper 20, the regulator 40 is also contained within the distribution pipe 10, and is fixed to the distribution pipe 10 by welding, so the number of items nl and With the exception of the negative pressure hole 48, the sealing performance of the liJ vibratory sulfur can be improved.

なお、合成樹IIIの結合は、超音波溶着に限らず熱風
溶性、振動溶着など他の溶着方式でもよく、また接着剤
による固定も可能である。
Note that the bonding of the synthetic tree III is not limited to ultrasonic welding, but may be other welding methods such as hot air welding or vibration welding, or may be fixed using an adhesive.

以上述べたように本願の第1発明によれば、燃料の気化
を抑止して噴射効率の低下を防止でき、第2発明によれ
ば耐振性能を向上できるという優れた効果を奏する。
As described above, according to the first invention of the present application, fuel vaporization can be suppressed to prevent a decrease in injection efficiency, and according to the second invention, vibration resistance can be improved, which is an excellent effect.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、この発明の一実施例を示す構成図、第2図及
び第3図は第1図図示の燃料分配管の要部を示す拡大断
面図である。 1・・・燃料タンク、2・・・燃料ポンプ、5・・・燃
料噴射弁、10・・・燃料分配管、20.40・・・燃
*−1制御機器をなす燃料ダンパ、燃料圧力レギュレー
タ。 代理人弁理士 岡 部 隆 第1図 第3図 3
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIGS. 2 and 3 are enlarged sectional views showing essential parts of the fuel distribution pipe shown in FIG. 1. DESCRIPTION OF SYMBOLS 1...Fuel tank, 2...Fuel pump, 5...Fuel injection valve, 10...Fuel distribution pipe, 20.40...Fuel damper and fuel pressure regulator forming fuel*-1 control equipment . Representative Patent Attorney Takashi Okabe Figure 1 Figure 3 Figure 3

Claims (1)

【特許請求の範囲】 +11燃料タンクから燃料を圧送する燃料ポンプと、こ
の燃料ポンプから圧送される燃料を各燃料噴射弁に分配
する燃料分配管とを備える燃料供給装置において、前記
燃料分配管が合成樹脂もしくは合成樹脂系複合材料で成
形されていることを特徴と、する燃料供給装置。 (2)前記合成樹脂系複合材料がガラス繊維および/又
は無機充填材を含む特許請求の範囲第1項記載の燃料供
給装置。 (3)燃料タンクから燃料を圧送する燃料ポンプと、こ
の燃料ポンプから圧送される燃料を各燃料噴射弁に分配
する燃料分配管とを備える燃料供給装置において、前記
燃料分配管が合成樹脂もしくは合成樹脂系複合材料で成
形されており、かつ前記燃料分配管内に燃料を制御する
燃料制御機器を内包さ−11溶着により結合させたこと
を特徴とする燃料供給装置。 (4)前記燃料制御機器が燃料の脈動を制御する燃料ダ
ンパからなる特許請求の範囲第3項記載の燃料供給装置
。 (5)前記燃料制御機器が燃料の圧力を制御する燃料圧
力レギュレータからなる特許請求の範囲第3項または第
4項に記載の燃料供給装置。
[Scope of Claims] +11 A fuel supply device comprising a fuel pump that pressure-feeds fuel from a fuel tank and a fuel distribution pipe that distributes the fuel pressure-fed from the fuel pump to each fuel injection valve, wherein the fuel distribution pipe is A fuel supply device characterized by being molded from a synthetic resin or a synthetic resin-based composite material. (2) The fuel supply device according to claim 1, wherein the synthetic resin composite material contains glass fiber and/or an inorganic filler. (3) In a fuel supply device comprising a fuel pump that pumps fuel from a fuel tank and a fuel distribution pipe that distributes the fuel pumped from the fuel pump to each fuel injection valve, the fuel distribution pipe is made of synthetic resin or synthetic resin. 1. A fuel supply device, characterized in that the device is molded from a resin-based composite material, and has a fuel control device for controlling fuel contained within the fuel distribution pipe and connected to the fuel distribution pipe by -11 welding. (4) The fuel supply device according to claim 3, wherein the fuel control device comprises a fuel damper that controls fuel pulsation. (5) The fuel supply device according to claim 3 or 4, wherein the fuel control device comprises a fuel pressure regulator that controls fuel pressure.
JP58152065A 1983-08-20 1983-08-20 Fuel supplying device Pending JPS6043163A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58152065A JPS6043163A (en) 1983-08-20 1983-08-20 Fuel supplying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58152065A JPS6043163A (en) 1983-08-20 1983-08-20 Fuel supplying device

Publications (1)

Publication Number Publication Date
JPS6043163A true JPS6043163A (en) 1985-03-07

Family

ID=15532288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58152065A Pending JPS6043163A (en) 1983-08-20 1983-08-20 Fuel supplying device

Country Status (1)

Country Link
JP (1) JPS6043163A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62210260A (en) * 1986-02-12 1987-09-16 ゼネラル モ−タ−ズ コ−ポレ−シヨン Incorporated type fuel pressure regulator
EP0251181A2 (en) * 1986-06-27 1988-01-07 Showa Aluminum Corporation Fuel pipe device for motor vehicles
US4768487A (en) * 1985-11-22 1988-09-06 Nissan Motor Company, Limited Internal combustion engine intake passage
JPH0462350U (en) * 1990-09-30 1992-05-28
JPH04175463A (en) * 1990-11-08 1992-06-23 Fuji Injiekuta Kk Fuel distribution pipe unit and fuel recovery pipe unit furnishing pressure regulator
US5133320A (en) * 1990-07-27 1992-07-28 Nippondenso Co., Ltd. Safety apparatus for combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768487A (en) * 1985-11-22 1988-09-06 Nissan Motor Company, Limited Internal combustion engine intake passage
JPS62210260A (en) * 1986-02-12 1987-09-16 ゼネラル モ−タ−ズ コ−ポレ−シヨン Incorporated type fuel pressure regulator
EP0251181A2 (en) * 1986-06-27 1988-01-07 Showa Aluminum Corporation Fuel pipe device for motor vehicles
US5133320A (en) * 1990-07-27 1992-07-28 Nippondenso Co., Ltd. Safety apparatus for combustion engine
JPH0462350U (en) * 1990-09-30 1992-05-28
JPH04175463A (en) * 1990-11-08 1992-06-23 Fuji Injiekuta Kk Fuel distribution pipe unit and fuel recovery pipe unit furnishing pressure regulator

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