JPS609063Y2 - Fuel system piping equipment - Google Patents
Fuel system piping equipmentInfo
- Publication number
- JPS609063Y2 JPS609063Y2 JP15487580U JP15487580U JPS609063Y2 JP S609063 Y2 JPS609063 Y2 JP S609063Y2 JP 15487580 U JP15487580 U JP 15487580U JP 15487580 U JP15487580 U JP 15487580U JP S609063 Y2 JPS609063 Y2 JP S609063Y2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- fuel tank
- resistor
- carbon canister
- pipe
- 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
Links
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
【考案の詳細な説明】 本考案は燃料系の配管装置の改良に関するものである。[Detailed explanation of the idea] The present invention relates to an improvement in piping equipment for a fuel system.
自動車の燃料タンクにおいては、該燃料タンク内の内圧
を高めることがないように、該燃料タンク内の空気又は
混合気は大気に放出して内圧を調整するのであるが、大
気汚染防止のため、第１図に示すように該燃料タンク１
内の空気又は混合気は配管２を介してエンジンルームに
設けたカーボンキャニスタ３内の活性炭層４を通してベ
ーパ中の有害な炭化水素を取除いて大気へ放出している
。In automobile fuel tanks, the air or mixture inside the fuel tank is vented to the atmosphere to adjust the internal pressure so as not to increase the internal pressure within the fuel tank, but in order to prevent air pollution, The fuel tank 1 as shown in FIG.
The air or air-fuel mixture inside is passed through a pipe 2 and an activated carbon layer 4 in a carbon canister 3 provided in the engine room, removing harmful hydrocarbons from the vapor and releasing it into the atmosphere.
しかしながら上記の配管２は車体構造上燃料タンク１よ
り低い場合が多く、そのため該燃料タンク１内の燃料（
ガソリン）５が、車両の走行中の急激なコーナリング、
あるいは急停車時等に配管２内へ流込む場合がある。However, the above piping 2 is often lower than the fuel tank 1 due to the structure of the vehicle body, so the fuel in the fuel tank 1 (
Gasoline) 5 is sharp cornering while the vehicle is running,
Alternatively, it may flow into the pipe 2 during a sudden stop or the like.
この場合通常は燃料タンク１内の負圧により該配管２内
に入った燃料５は燃料タンク１内に引き戻されるのであ
るが、上記現象が強かったり、あるいは連続して起った
場合には燃料５は燃料タンク１内に引き戻されず、カー
ボンキャニスタ３にまで流込み、そのま）大気へ放出さ
れることがある。In this case, normally the fuel 5 that has entered the pipe 2 is pulled back into the fuel tank 1 by the negative pressure inside the fuel tank 1, but if the above phenomenon is strong or occurs continuously, the fuel 5 5 may not be drawn back into the fuel tank 1, but may flow into the carbon canister 3 and be released directly into the atmosphere.
このため従来では第２図に示すように、配管２の一部を
コイル状にして立上げて該配管２を長くし、燃料５の通
過時間を長くするようにして上記問題を解消するように
していたが、この構造のものでは大きなスペースを必要
としなければならないのであり、車体構造上燃料タンク
１よりあまり高くすることはできず、その配置、取付は
等に苦慮していた。For this reason, conventionally, as shown in FIG. 2, a part of the pipe 2 is made into a coil shape and raised to lengthen the pipe 2, thereby increasing the passage time of the fuel 5 to solve the above problem. However, this structure requires a large space, and due to the structure of the vehicle body, it cannot be made much higher than the fuel tank 1, making its placement and installation difficult.
本考案は上記従来の問題点を解消するためになされたも
のであって、燃料タンクとカーボンキャニスタを連通ず
る配管の途中に取付はスペースを必要としない小型の迷
路状の抵抗体を設けて燃料（ガソリン）が通る道程を長
＜シ、燃料タンクから流出した燃料がカーボンキャニス
タまで流込まないようにした燃料系の配管装置を提供す
ることを目的とするものである。The present invention was devised to solve the above-mentioned conventional problems, and a small labyrinth-like resistor is installed in the middle of the piping that communicates the fuel tank and carbon canister, and does not require any installation space. It is an object of the present invention to provide a fuel system piping device which lengthens the distance that gasoline (gasoline) travels and prevents fuel flowing out from a fuel tank from flowing into a carbon canister.
以下、本考案を図示せる実施例に随って説明する。The present invention will be described below with reference to illustrative embodiments.
１１は燃料タンク、１２はカーボンキャニスタ、１３．
１３’は燃料タンク１１とカーボンキャニスタ１２を連
通ずる配管であって、該配管１３の途中には抵抗体１４
が設けられている。11 is a fuel tank, 12 is a carbon canister, 13.
13' is a pipe that communicates the fuel tank 11 and the carbon canister 12, and a resistor 14 is installed in the middle of the pipe 13.
is provided.
該抵抗体１４は、平板状に形成された平面部２２を有す
る本体１６と、該平面部２２に密着するシール面２３を
有する蓋体１７とから構成され、該本体１６と蓋体１７
とは接着剤によって接合され、一体となっている。The resistor 14 is composed of a main body 16 having a planar portion 22 formed in a flat plate shape, and a lid 17 having a sealing surface 23 in close contact with the planar portion 22.
It is joined with adhesive and becomes one piece.
上記平面部２２の両側には嵌合部１８．１８’が形成さ
れ、該嵌合部１８．１８’にはそれぞれ嵌合孔２１，２
１’が形成されている。Fitting portions 18.18' are formed on both sides of the flat portion 22, and fitting holes 21 and 2 are formed in the fitting portions 18.18', respectively.
1' is formed.
又、上記平面部２２には、上記両底合孔２１，２１’を
連通ずる溝１５が形成され、該溝１５の中間部は、上記
両底合孔２１，２１’間の経路が長くなるように迷路状
に蛇行している。Further, a groove 15 is formed in the flat part 22 to communicate the two bottom matching holes 21, 21', and the intermediate part of the groove 15 has a long path between the two bottom matching holes 21, 21'. It meanders like a maze.
上記抵抗体１４に形成された２つの嵌合孔２１．２１’
のうち、一方の嵌合孔２１は、上記燃料タンク１１に連
通ずるように、嵌合部１８が該燃料タンク１１側の燃料
配管１３に嵌挿され、又、他方の嵌合孔２１は、上記カ
ーボンキャニスタ１２に連通ずるように、嵌合部１８′
が該カーボンキャニスタ１２側の燃料配管１３′に嵌挿
されている。Two fitting holes 21 and 21' formed in the resistor 14
In one of the fitting holes 21, the fitting part 18 is fitted into the fuel pipe 13 on the side of the fuel tank 11 so as to communicate with the fuel tank 11, and in the other fitting hole 21, A fitting portion 18' is provided so as to communicate with the carbon canister 12.
is fitted into the fuel pipe 13' on the carbon canister 12 side.
上記溝１５の両開口端には上記配管１３に嵌挿する嵌合
部１８，１８が形成されている。Fitting portions 18, 18, which fit into the pipe 13, are formed at both open ends of the groove 15.
１９は上記キャニスタ１２内に詰込まれた活性炭、２０
は燃料（ガソリン）である。19 is activated carbon packed in the canister 12; 20
is fuel (gasoline).
以上述べたように本考案によれば、燃料タンクとカーボ
ンキャニスタを連通ずる燃料配管の途中に、燃料タンク
側の燃料配管に連通ずる嵌合孔と、カーボンキャニスタ
側の燃料配管に連通する嵌合孔と、両底合孔を連通し、
両嵌合孔間の経路を長くするようにした迷路状に蛇行し
た溝を有する抵抗体を設けたので、燃料タンクからカー
ボンキャニスタまでの道程が長くなり、したがって該燃
料配管に流込んだ燃料はカーボンキャニスタまで行くこ
とがなく再び燃料タンクに引き戻される。As described above, according to the present invention, a fitting hole communicating with the fuel pipe on the fuel tank side and a fitting hole communicating with the fuel pipe on the carbon canister side are provided in the middle of the fuel pipe communicating the fuel tank and the carbon canister. The hole communicates with both bottom holes,
Since a resistor having a meandering labyrinth groove is provided to lengthen the path between both fitting holes, the path from the fuel tank to the carbon canister is longer, and therefore the fuel flowing into the fuel pipe is It does not go to the carbon canister and is drawn back into the fuel tank.
これは、燃料配管内に燃料が流込むのが急激なコーナリ
ングや急制動時の短時間の現象であるため、燃料タンク
からカーボンキャニスタまでの道程を長くすれば、それ
だけ燃料の通過時間が長くなるのでカーボンキャニスタ
まで行かないうちに燃料タンク内の負圧により引き戻さ
れるためである。This is because fuel flows into the fuel pipe for a short period of time during sharp cornering or sudden braking, so the longer the path from the fuel tank to the carbon canister, the longer the fuel will take to pass. This is because the negative pressure inside the fuel tank pulls it back before it reaches the carbon canister.
よって、該燃料はそのま）大気中に放出されないので、
有害な炭化水素も放出されることがない。Therefore, the fuel is not directly released into the atmosphere,
No harmful hydrocarbons are released either.
又、本考案による抵抗体は小型で、かつ軽量であり、し
かも、該抵抗体は略水平に設置できるため、高さ方向に
スペースを必要とせず、従来からの装置にも簡単に取付
けることができるだけではなく、該抵抗体は、本体と蓋
体とを接合して構成するため、耐油性の樹脂等により、
型成型で容易に成形することができるので安価に提供す
ることができるという効果を有するものである。In addition, the resistor according to the present invention is small and lightweight, and since it can be installed almost horizontally, it does not require space in the height direction and can be easily installed in conventional equipment. Not only is this possible, but since the resistor is constructed by joining the main body and the lid, it is made of oil-resistant resin, etc.
Since it can be easily molded by molding, it has the advantage that it can be provided at low cost.
第１図は従来の燃料タンクからカーボンキャニスタへの
配管状態を示す正面図、第２図は従来の配管の一部をコ
イル状にした場合の一例を示す部分拡大正面図、第３図
は本考案による抵抗体の取付は位置の一例を示す正面図
、第４図は抵抗体の拡大正面図、第５図は同上の蓋体を
外した状態を示す拡大斜視図である。
１１は燃料タンク、１２はカーボンキャニスタ、１３．
１３は燃料配管、１４は抵抗体、１５は溝、２１．２１
’は嵌合孔、２２は平面部。Figure 1 is a front view showing the state of the conventional piping from the fuel tank to the carbon canister, Figure 2 is a partially enlarged front view showing an example of a case where part of the conventional piping is coiled, and Figure 3 is the main FIG. 4 is an enlarged front view of the resistor, and FIG. 5 is an enlarged perspective view showing an example of the mounting position of the resistor according to the invention. 11 is a fuel tank, 12 is a carbon canister, 13.
13 is a fuel pipe, 14 is a resistor, 15 is a groove, 21.21
' is a fitting hole, and 22 is a flat surface.
Claims (1)
密着する蓋体を接合して抵抗体を構成し、上記本体の平
面部の２ケ所に嵌合孔を形成し、かつ、上記平面部に、
上記両底合孔を連通すると共に両嵌合孔間の経路を長く
するように迷路状に蛇行した溝を設け、上記抵抗体の一
方の嵌合孔を燃料タンクに連通ずる燃料配管に接続し、
他方の嵌合孔をカーボンキャニスタに連通ずる燃料配管
に接続したことを特徴とする燃料系の配管装置 置。[Claims for Utility Model Registration] A resistor is constructed by joining a main body having a planar portion formed in a flat plate shape and a lid that fits tightly to the planar portion, and fitting into two places on the planar portion of the main body. forming a hole, and in the plane part,
A meandering groove is provided in a maze-like manner so as to communicate the two bottom mating holes and to lengthen the path between the two mating holes, and one of the mating holes of the resistor is connected to a fuel pipe communicating with the fuel tank. ,
A fuel system piping device characterized in that the other fitting hole is connected to a fuel piping communicating with a carbon canister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15487580U JPS609063Y2 (en) | 1980-10-31 | 1980-10-31 | Fuel system piping equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15487580U JPS609063Y2 (en) | 1980-10-31 | 1980-10-31 | Fuel system piping equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5777023U JPS5777023U (en) | 1982-05-12 |
| JPS609063Y2 true JPS609063Y2 (en) | 1985-04-01 |
Family
ID=29514094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15487580U Expired JPS609063Y2 (en) | 1980-10-31 | 1980-10-31 | Fuel system piping equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609063Y2 (en) |
-
1980
- 1980-10-31 JP JP15487580U patent/JPS609063Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5777023U (en) | 1982-05-12 |
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