JPS643815Y2 - - Google Patents
Info
- Publication number
- JPS643815Y2 JPS643815Y2 JP1982171841U JP17184182U JPS643815Y2 JP S643815 Y2 JPS643815 Y2 JP S643815Y2 JP 1982171841 U JP1982171841 U JP 1982171841U JP 17184182 U JP17184182 U JP 17184182U JP S643815 Y2 JPS643815 Y2 JP S643815Y2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- filter
- fuel passage
- passage
- mesh
- 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
- 239000000446 fuel Substances 0.000 claims description 73
- 239000002828 fuel tank Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 2
- 239000000295 fuel oil Substances 0.000 claims description 2
- 230000008014 freezing Effects 0.000 description 8
- 238000007710 freezing Methods 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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、自動車の燃料タンク内にサクシヨン
パイプを挿入し、サクシヨンパイプによつて形成
される燃料通路によつて内部の燃料を吸引する燃
料吸引装置の改良に関するものである。[Detailed description of the invention] The present invention relates to an improvement of a fuel suction device that inserts a suction pipe into the fuel tank of an automobile and sucks the fuel inside through the fuel passage formed by the suction pipe. It is something.
従来より、燃料タンク内に挿入したサクシヨン
パイプ先端にフイルタを取付け、水等燃料内に混
入しうる異物が燃料と一緒に吸引されないように
した燃料の吸引装置は公知である（例えば実公昭
56−127133号公報）。 Conventionally, fuel suction devices are known in which a filter is attached to the tip of a suction pipe inserted into a fuel tank to prevent foreign substances such as water that may be mixed into the fuel from being sucked in together with the fuel (for example, Jikkosho et al.
56-127133).
ところで、この種の燃料吸引システムでは、フ
イルタとして燃料は通すが水分は通さない小さい
メツシユを有するフイルタをサクシヨンパイプに
設けているため、水分の燃料ラインへの混入を防
止できるので寒冷地における燃料ラインの凍結は
回避できるが、フイルタ付近に存在する水分の凍
結によるフイルタの目詰り、低温下における燃料
中のろう分析出によるフイルタの目詰り等が発生
するといつた問題があつた。 By the way, in this type of fuel suction system, the suction pipe is equipped with a filter that has a small mesh that allows fuel to pass through but does not allow moisture to pass through.This prevents moisture from entering the fuel line, making it suitable for fuel use in cold regions. Although freezing of the line can be avoided, there are problems such as clogging of the filter due to freezing of water existing near the filter, and clogging of the filter due to wax analysis in the fuel at low temperatures.
本考案は、かかる問題に鑑みてなされたもので
あつて、寒冷地においても常に円滑な燃料の吸引
が行なえる自動車の燃料吸引装置を提供せんとす
るものである。 The present invention has been made in view of the above problem, and it is an object of the present invention to provide a fuel suction device for an automobile that can always perform smooth fuel suction even in cold regions.
このため、本考案は、燃料タンク内にサクシヨ
ンパイプが挿入され、該サクシヨンパイプは燃料
タンク内で第１燃料通路と第２燃料通路とに分岐
されており、第１燃料通路の端部には燃料は通す
が水を通さない小さいメツシユの第１フイルタが
設けられ、第２燃料通路の端部には第１フイルタ
より大きいメツシユでかつ、これよりも高い位置
に第２フイルタが設けられており、上記第１燃料
通路と第２燃料通路との分岐部と該分岐部から第
２フイルタまでの第２燃料通路とのいずれか一方
には燃料油温の低下時に第２燃料通路を解放する
切換バルブが設けられていることを特徴とする自
動車の燃料吸引装置を提供するものである。 Therefore, in the present invention, a suction pipe is inserted into the fuel tank, and the suction pipe is branched into a first fuel passage and a second fuel passage within the fuel tank, and the end of the first fuel passage A first filter with a small mesh that allows fuel to pass through but not water is provided at the end of the second fuel passage, and a second filter is provided at the end of the second fuel passage with a larger mesh than the first filter and at a higher position. The second fuel passage is opened to either one of the branch part between the first fuel passage and the second fuel passage and the second fuel passage from the branch part to the second filter when the fuel oil temperature decreases. The present invention provides a fuel suction device for an automobile, characterized in that it is provided with a switching valve.
以下、図示の実施例に基づいて本考案をより具
体的に説明する。 Hereinafter, the present invention will be described in more detail based on illustrated embodiments.
第１図に示すように、自動車の燃料タンク１内
には、サクシヨンパイプ２およびリターンパイプ
３を挿入し、燃料の吸引および余剰分の帰還を行
なう。 As shown in FIG. 1, a suction pipe 2 and a return pipe 3 are inserted into a fuel tank 1 of an automobile to suck in fuel and return excess fuel.
燃料吸引通路を形成するサクシヨンパイプ２は
下端側において２つに分岐させて第１燃料通路４
と第２燃料通路５とを形成している。 The suction pipe 2 forming the fuel suction passage is branched into two at the lower end side, and a first fuel passage 4 is formed.
and a second fuel passage 5.
上記第１燃料通路４、第２燃料通路５の各端部
には、夫々第１フイルタ６、第２フイルタ７を取
付けている。第１フイルタ６としては、燃料は通
すが水分は通さない小さいメツシユを有するフイ
ルタを用い、第２フイルタ７のメツシユは第１フ
イルタ６のメツシユより大きい、換言すれば燃料
も水分も通すが、燃料タンク１内の水分の凍結に
よつて生ずる氷塊ａ，…，ａは通さないメツシユ
を有するフイルタを第２フイルタ７として用い
る。 A first filter 6 and a second filter 7 are attached to each end of the first fuel passage 4 and the second fuel passage 5, respectively. As the first filter 6, a filter having a small mesh that allows fuel to pass through but not moisture is used.The mesh of the second filter 7 is larger than the mesh of the first filter 6.In other words, it allows both fuel and moisture to pass through, but the mesh of the second filter 7 is larger than that of the first filter 6. As the second filter 7, a filter having a mesh that does not allow ice blocks a, .
この場合、第１フイルタ６は燃料タンク１の底
面１ａに近づけて配置する一方、第２フイルタ７
は比重差によつて通常は底面１ａ付近に滞溜する
水分を避ける意味で、第１フイルタ６より若干高
い位置に配置する。 In this case, the first filter 6 is placed close to the bottom surface 1a of the fuel tank 1, while the second filter 7
is arranged at a position slightly higher than the first filter 6 in order to avoid moisture that normally accumulates near the bottom surface 1a due to the difference in specific gravity.
また、メツシユの大きい第２フイルタ７内に端
部が位置する第２燃料通路５の途中には、圧力バ
ルブとしてのチエツクバルブ８を介設し、常時は
チエツクバルブ８によつて第２燃料通路５を遮断
して第２フイルタ７、第２燃料通路５の経路によ
る燃料の吸引は行なわないようにしている。 In addition, a check valve 8 as a pressure valve is interposed in the middle of the second fuel passage 5 whose end is located inside the second filter 7 having a large mesh. 5 is cut off to prevent fuel from being sucked through the second filter 7 and the second fuel passage 5.
したがつて、通常は、第１フイルタ６、第１燃
料通路４の経路で燃料の吸引が行なわれ、第１フ
イルタ６によつて水分を吸引しないようにしてい
る。 Therefore, fuel is normally sucked through the first filter 6 and the first fuel passage 4, and moisture is not sucked by the first filter 6.
ところで、寒冷地等において外気温が、燃料の
ろう分析出を生ずる程度にまで低下すると、析出
したろう分によつて第１フイルタ６には目詰りが
生じて、吸引負圧が高くなり、これによつてチエ
ツクバルブ８が開かれ、ろう分によつては目詰り
を生じない第２フイルタ７から燃料の吸引が行な
われる。この場合、ろう分析出を生ずる温度条件
下では、燃料中に含有される水分が凍結するが、
この凍結の結果生ずる氷塊ａ，…，ａは第２フイ
ルタ７によつて確実に排除することができる。 By the way, when the outside temperature in a cold region etc. drops to a level that causes the wax to separate out from the fuel, the first filter 6 becomes clogged with the deposited wax and the suction negative pressure increases. As a result, the check valve 8 is opened, and fuel is sucked from the second filter 7, which does not become clogged with wax. In this case, the water contained in the fuel freezes under the temperature conditions that cause wax analysis, but
The ice blocks a, . . . , a produced as a result of this freezing can be reliably removed by the second filter 7.
なお、リターンパイプ３の下端部は、図示の如
く先端の径を大きくして水分付着による凍結およ
び閉塞の防止を計かる構造とすることが好まし
い。また、具体的に図示しないが、リターンパイ
プ３の下端に、燃料は通すが水は通さないフイル
タを設けて、凍結および閉塞を防止するようにし
てもよい。 It is preferable that the lower end of the return pipe 3 has a structure in which the diameter of the tip is increased as shown in the figure to prevent freezing and blockage due to adhesion of moisture. Further, although not specifically shown, a filter may be provided at the lower end of the return pipe 3 to allow fuel to pass through but not water to prevent freezing and blockage.
次に、第２図に示す第２の実施例について説明
する。 Next, a second embodiment shown in FIG. 2 will be described.
第２図に示すように、サクシヨンパイプ２はこ
れを下部側において、二叉に分岐させて第１燃料
通路１０と第２燃料通路１１とを形成し、第１燃
料通路１０の端部には、メツシユの小さい第１フ
イルタ１２を、第２燃料通路１１の端部には、メ
ツシユの大きい第２フイルタ１３を夫々取付ける
一方、第１，第２燃料通路１０，１１の分岐部に
は、常時は第１燃料通路１０を開き、燃料中のう
分が析出する温度まで燃料温度が低下したときに
は第１燃料通路１０側を閉じて第２燃料通路１１
側を開くサーモバルブ１４を設けている。 As shown in FIG. 2, the suction pipe 2 is branched into two parts at the lower side to form a first fuel passage 10 and a second fuel passage 11. The first filter 12 with a small mesh is installed at the end of the second fuel passage 11, and the second filter 13 with a large mesh is installed at the end of the second fuel passage 11. The first fuel passage 10 is normally open, and when the fuel temperature drops to a temperature at which dirt in the fuel is deposited, the first fuel passage 10 is closed and the second fuel passage 11 is closed.
A thermovalve 14 that opens the side is provided.
したがつて、この場合には、燃料温度に依存し
て第１フイルタ１２と第２フイルタ１３の機能を
使い分けることができる。即ち、燃料温度がろう
分の析出や水分の凍結を生じない温度であるとき
には、もつぱら第１フイルタ１２によつて燃料の
みを吸引させるようにし、ろう分の析出が生じう
る温度条件では、第２フイルタ１３をもつぱら使
用して、析出ろう分や氷塊による第１フイルタ１
２の目詰りを回避するようにすることができる。 Therefore, in this case, the functions of the first filter 12 and the second filter 13 can be used depending on the fuel temperature. That is, when the fuel temperature is such that wax content does not precipitate or water freezes, only the fuel is sucked in by the first filter 12, and under temperature conditions where wax content may precipitate, the first filter 12 sucks only the fuel. By using two filters 13, the first filter 1 is filtered by precipitated wax and ice blocks.
The second clogging can be avoided.
なお、リターンパイプ３の下端には、燃料は通
すが水は通さない小さいメツシユを有するフイル
タ１５を取付けるようにし、付着水分の凍結やこ
れに起因するリターンパイプ３の閉塞を防止する
ことが好ましい。 Note that it is preferable to attach a filter 15 having a small mesh that allows fuel to pass through but not water to pass through at the lower end of the return pipe 3 to prevent adhering moisture from freezing and clogging of the return pipe 3 caused by this.
以上の説明から明らかなように、本願考案によ
れば、燃料タンクの燃料吸込口を構成するサクシ
ヨンパイプを燃料タンク内で分岐させ、分岐させ
た第１，第２燃料通路の端部（吸込口）にそれぞ
れ第１，第２フイルタを高さを違えて取付け、通
常時は低い位置に配置した、水を通さない小さい
メツシユの第１フイルタを通して燃料を吸引する
一方、低温時に燃料中の水分による氷塊によつて
第１フイルタに目詰りを生じても、第１フイルタ
より高い位置に配置したメツシユの大きい第２フ
イルタ側から燃料を吸引することができるので、
寒冷地等において生じうるろう分析出や水分凍結
等による燃料ラインの凍結や閉塞を確実に防止し
て、燃料供給を確保することができる。 As is clear from the above description, according to the present invention, the suction pipe constituting the fuel suction port of the fuel tank is branched within the fuel tank, and the ends of the branched first and second fuel passages (suction The first and second filters are installed at different heights at each port (port), and during normal times fuel is sucked through the first filter, which is a small mesh that does not allow water to pass through and is placed at a low position. Even if the first filter is clogged by ice blocks, fuel can be sucked from the second filter, which has a larger mesh and is located higher than the first filter.
It is possible to secure the fuel supply by reliably preventing freezing and clogging of the fuel line due to wax analysis and moisture freezing that may occur in cold regions.
第１図および第２図は夫々本考案の第１、第２
実施例を夫々示す燃料タンクの各断面説明図であ
る。
１……燃料タンク、２……サクシヨンパイプ、
３……リターンパイプ、４，１０……第１燃料通
路、５，１１……第２燃料通路、６，１２……第
１フイルタ、７，１３……第２フイルタ、８……
チエツクバルブ、１４……サーモバルブ。
Figures 1 and 2 are the first and second figures of the present invention, respectively.
FIG. 3 is a cross-sectional explanatory view of a fuel tank showing examples. 1... Fuel tank, 2... Suction pipe,
3... Return pipe, 4, 10... First fuel passage, 5, 11... Second fuel passage, 6, 12... First filter, 7, 13... Second filter, 8...
Check valve, 14...thermo valve.
Claims (1)
該サクシヨンパイプは燃料タンク内で第１燃料通
路と第２燃料通路とに分岐されており、第１燃料
通路の端部には燃料は通すが水を通さない小さい
メツシユの第１フイルタが設けられ、第２燃料通
路の端部には第１フイルタより大きいメツシユで
かつ、これよりも高い位置に第２フイルタが設け
られており、上記第１燃料通路と第２燃料通路と
の分岐部と該分岐部から第２フイルタまでの第２
燃料通路とのいずれか一方には燃料油温の低下時
に第２燃料通路を解放する切換バルブが設けられ
ていることを特徴とする自動車の燃料吸引装置。 A suction pipe is inserted into the fuel tank,
The suction pipe is branched into a first fuel passage and a second fuel passage within the fuel tank, and a small mesh first filter is provided at the end of the first fuel passage to allow fuel to pass through but not water. A second filter is provided at the end of the second fuel passage with a mesh larger than that of the first filter and at a higher position than the first filter. the second filter from the branch to the second filter;
1. A fuel suction device for an automobile, characterized in that a switching valve is provided on either one of the fuel passage and the second fuel passage to open the second fuel passage when the fuel oil temperature decreases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17184182U JPS5975552U (en) | 1982-11-13 | 1982-11-13 | Automotive fuel suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17184182U JPS5975552U (en) | 1982-11-13 | 1982-11-13 | Automotive fuel suction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5975552U JPS5975552U (en) | 1984-05-22 |
| JPS643815Y2 true JPS643815Y2 (en) | 1989-02-01 |
Family
ID=30374744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17184182U Granted JPS5975552U (en) | 1982-11-13 | 1982-11-13 | Automotive fuel suction device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5975552U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013044269A (en) * | 2011-08-23 | 2013-03-04 | Toyota Motor Corp | Fuel supply device |
| JP5926015B2 (en) * | 2011-08-29 | 2016-05-25 | トヨタ自動車株式会社 | Fuel supply device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5347421B2 (en) * | 1977-05-16 | 1978-12-21 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5347421U (en) * | 1976-09-27 | 1978-04-21 |
-
1982
- 1982-11-13 JP JP17184182U patent/JPS5975552U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5347421B2 (en) * | 1977-05-16 | 1978-12-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5975552U (en) | 1984-05-22 |
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