JPS62295723A - Fuel tank - Google Patents
Fuel tankInfo
- Publication number
- JPS62295723A JPS62295723A JP13619886A JP13619886A JPS62295723A JP S62295723 A JPS62295723 A JP S62295723A JP 13619886 A JP13619886 A JP 13619886A JP 13619886 A JP13619886 A JP 13619886A JP S62295723 A JPS62295723 A JP S62295723A
- Authority
- JP
- Japan
- Prior art keywords
- air chamber
- tank
- pipe
- projecting part
- surrounding 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.)
- Granted
Links
- 239000002828 fuel tank Substances 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 22
- 239000000446 fuel Substances 0.000 abstract description 6
- 238000009423 ventilation Methods 0.000 description 8
- 239000006260 foam Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 102100025490 Slit homolog 1 protein Human genes 0.000 description 1
- 101710123186 Slit homolog 1 protein Proteins 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
［産業上の利用分野１
本発明はタンク上部に空気室を有し、その空気室に通気
管を設けた燃料タンクに関する。Detailed Description of the Invention 3. Detailed Description of the Invention [Industrial Field of Application 1 The present invention relates to a fuel tank having an air chamber in the upper part of the tank and a vent pipe provided in the air chamber.
［従来技術とその欠点］
従来の燃料タンク、例えば自動中の燃料タンクは第４図
に示されており、全体を箱形に形成したタンクＴは、そ
の頂部１に開口２が形成され、その開口２には筒状の給
油管３が設けられている。[Prior Art and Its Disadvantages] A conventional fuel tank, for example, a fuel tank for an automatic vehicle, is shown in FIG. A cylindrical oil supply pipe 3 is provided in the opening 2 .
そしてその頂部１は突出部４を有し、その下部に空気室
５が形成されている。この空気室５は満タン時に熱ｒｉ
？、脹により液が給油管３から濡出するのを防止するた
めのものであり、また通気管６は、給油中にタンクＴ内
の空気がスムーズに流出するようにするために設けられ
ている。The top portion 1 has a protrusion 4, and an air chamber 5 is formed at the bottom thereof. This air chamber 5 generates heat when the tank is full.
? This is to prevent the liquid from seeping out from the fuel supply pipe 3 due to swelling, and the ventilation pipe 6 is provided to ensure that the air in the tank T flows out smoothly during refueling. .
この通気管６の下端６ａの位置により満タン時の液面１
１が規制されており、その上端６ｂは給油管３の上端付
近に開口している。タンクＴの下部には液の流出管７が
取付けられており、この流出管は自動車のエンジンまで
伸びている。Depending on the position of the lower end 6a of this vent pipe 6, the liquid level 1 when the tank is full
1 is regulated, and its upper end 6b opens near the upper end of the oil supply pipe 3. A liquid outflow pipe 7 is attached to the lower part of the tank T, and this outflow pipe extends to the engine of the automobile.
かかる公知技術において、給油管３の給油口３ａにノズ
ルＮを挿入して給油作業を行う場合、特に軽油のように
泡立ちやすい液では、液面がレベル［２位に達すると、
泡Ｂが通気管６の先端６ａから通気管６に空気と共に流
入する。この泡Ｂは上端６ｂから給油管３に流出し、給
油口３ａを閉塞し、給油口３ａより泡が吹き出るいわゆ
る吹き返し現象が生ずる。するとノズルＮの液面センサ
が泡を検知し、ノズルＮの弁が自動的に閉じてしまう。In this known technique, when refueling is performed by inserting the nozzle N into the refueling port 3a of the refueling pipe 3, when the liquid level reaches the level [2nd position], especially for a liquid that easily foams like light oil,
Bubbles B flow into the ventilation pipe 6 from the tip 6a of the ventilation pipe 6 together with air. This foam B flows out from the upper end 6b into the oil supply pipe 3 and blocks the oil supply port 3a, causing a so-called blowback phenomenon in which the foam blows out from the fuel supply port 3a. Then, the liquid level sensor of the nozzle N detects bubbles, and the valve of the nozzle N automatically closes.
そのために作業口は何度も弁を聞き直して満タンにする
必要がある。そして給油口より泡が吹き出づ−ので危険
である。For this reason, it is necessary to read the valve again and again to fill up the work port. And it is dangerous because bubbles will blow out from the fuel filler port.
また泡立ちにくい液の場合でも、ノズルＮからの吐出液
により液面Ｌ２が彼女ら、油が通気管ｅ内に流入し、空
気の戻りがスムーズに行われないという欠点があった。Further, even in the case of a liquid that does not foam easily, the liquid level L2 is lowered by the liquid discharged from the nozzle N, causing oil to flow into the vent pipe e, resulting in a problem in that air cannot be returned smoothly.
［発明の目的］
したがって本発明の目的は、液面の泡立ちや彼女ちによ
り泡や油が通気管に流入することのない燃料タンクを提
供するにある。[Object of the Invention] Therefore, an object of the present invention is to provide a fuel tank in which bubbles and oil do not flow into the vent pipe due to foaming of the liquid surface.
［発明の構成］
本発明によれば、タンク上部に空気室を有し、その空気
室に通気管を設けた燃料タンクにおいて、通気管が空気
室に開口している先端の周囲に泡の流入を阻止する包囲
体を設けである。[Structure of the Invention] According to the present invention, in a fuel tank having an air chamber in the upper part of the tank and a vent pipe provided in the air chamber, bubbles may flow around the tip of the vent pipe opening into the air chamber. An enclosure is provided to prevent this.
［発明の作用効果］
したがって、給油作業中に泡立ちがあっても包囲体によ
って、泡が消えるので通気管に泡が流入しない。また彼
女ちがあっても、波が包囲体で阻止されるので、通気管
に油が流入しない。[Operations and Effects of the Invention] Therefore, even if bubbles are generated during the refueling operation, the bubbles are extinguished by the enclosure, so that the bubbles do not flow into the vent pipe. Even if they are different, the waves are blocked by the enclosure, so no oil will flow into the vent pipe.
本発明の実施に際して、包囲体に小孔のある板体又は網
状体或いは両者の組合せを用いるのが好ましい。またタ
ンクの突出部近くの包囲体の上部に空気流入用の穴やス
リットを設けることもできる。In practicing the present invention, it is preferred to use a perforated plate or a mesh or a combination of the two in the enclosure. It is also possible to provide air inlet holes or slits in the upper part of the enclosure near the protrusion of the tank.
「実施例Ｊ
以下第１図ないし第３図を参照して本発明の詳細な説明
する。これらの図面において第４図に相当する部品は同
じ符号で示しである。Embodiment J The present invention will now be described in detail with reference to FIGS. 1 to 3. In these drawings, parts corresponding to FIG. 4 are designated by the same reference numerals.
第１図に示す実施例では仝休を符号１０ａで示す包囲体
は全体的に逆戚ｗＩ錐形（円錐又は角錐形）に形成され
、空気室５内に伸びる通気管６を包囲している。その小
径ＦｆＳ１１には小孔１２が穿設され、その大径部１３
は突出部４の内面に固着され、そして穴又はスリット１
４が突出部４の内壁に隣接して開口されている。In the embodiment shown in FIG. 1, the enclosure, indicated by the reference numeral 10a, is generally in the shape of an inverted cone (cone or pyramid) and surrounds a ventilation pipe 6 extending into the air chamber 5. . A small hole 12 is bored in the small diameter FfS11, and the large diameter part 13
is fixed to the inner surface of the protrusion 4, and the hole or slit 1
4 is opened adjacent to the inner wall of the protrusion 4 .
したがって、給油中の液面の上背に伴い、小孔１２より
高い位置に液面が達すると、液は小孔１２から流入する
が、泡ははいらない。またタンク内の液が消費された場
合は、包ＩｆＪＪ体り０ａ内の液はこの小孔１２から流
出する。また給油中の液面の上背に伴い、空気は穴１４
から包囲体１０ａの内部にはいるので、空気室の作用お
よび通気管の作用は害されない。また、彼女ちがあって
も包囲体１０ａによって包囲体１０ａの内部には液がは
いらないので、通気管６内に液体が流入しない。Therefore, when the liquid level reaches a position higher than the small hole 12 as the liquid level rises during refueling, the liquid flows through the small hole 12, but no bubbles are generated. Further, when the liquid in the tank is consumed, the liquid in the case IfJJ body 0a flows out from this small hole 12. Also, due to the upper back of the liquid level during refueling, air flows into the hole 14.
Since it enters the interior of the enclosure 10a, the function of the air chamber and the function of the ventilation pipe are not impaired. Further, even if there is a difference between the two, since no liquid is allowed to enter the inside of the enclosure 10a due to the enclosure 10a, no liquid flows into the ventilation pipe 6.
第２図に示す実施例では、包囲体１０ｂは、通気管６の
先端部分を囲む円ね又［ユ角局状の金網１５で構成され
、その下端には板体１６が取付けられており、その上端
は板体１７を介して又は直接に突出部４の内側に固着さ
れている。金網１５は空気や油（液）を通すけれども、
泡は消すことができ、また彼女ちも吸収できる。In the embodiment shown in FIG. 2, the enclosure 10b is composed of a circular wire mesh 15 surrounding the tip of the ventilation pipe 6, and a plate 16 is attached to the lower end of the wire mesh 15. Its upper end is fixed to the inside of the protrusion 4 via the plate 17 or directly. Although the wire mesh 15 allows air and oil (liquid) to pass through,
Bubbles can be extinguished and they can also be absorbed.
その作用効果は第１図のものと実質的に同じである。Its operation and effect are substantially the same as those in FIG.
第３図は第１図の変形例であり、穴又はスリット１４の
所に金網１８を設けた例である。この実施例では、泡が
穴又はスリット１４からはいりにくくなり、さらに効果
的である。FIG. 3 is a modification of FIG. 1, in which a wire mesh 18 is provided at the hole or slit 14. This embodiment is more effective because bubbles are less likely to enter through the holes or slits 14.
［まとめ］
以上の如く、本発明によれば、通気管が空気室に開口し
ている先端の周囲に泡の流入を阻止する包囲体を設けた
ので、空気や液は通帛“の通り流入するが、泡は消され
、また彼女らは吸収される。[Summary] As described above, according to the present invention, an enclosure for preventing bubbles from flowing in is provided around the tip of the vent pipe opening into the air chamber, so that air and liquid can flow in through the pipe. However, the bubbles disappear and they are absorbed again.
それ故に空気流出管内に泡や液が流入せず、通気管の詰
りを防止し、吹き返しを防止できる。そして給油ノズル
のセンサの誤作動を防止できるTherefore, bubbles and liquid do not flow into the air outflow pipe, which prevents clogging of the ventilation pipe and prevents blowback. And it can prevent malfunction of the refueling nozzle sensor.
第１図は本発明の一実施例を示１断面図、第２図は他の
実施例を示Ｖ断面図、第３図は第１図の例の変形例を示
寸断面図、第４図は従来技術を一部断面で示すタンクの
側面図である。
Ｔ・・・タンク １・・・頂部 ４・・・突出部
５・・・空気室 ６・・・通気管１０ａ、１０ｂ、
１０ｃｍ−−包囲体
り−
第１図
第２図
１ｏｂ”
第３図FIG. 1 is a sectional view showing one embodiment of the present invention, FIG. 2 is a V sectional view showing another embodiment, FIG. 3 is a dimensional sectional view showing a modification of the example in FIG. The figure is a side view of a tank showing a conventional technique partially in section. T...Tank 1...Top 4...Protrusion
5...Air chamber 6...Vent pipes 10a, 10b,
10cm - Encircling body - Fig. 1 Fig. 2 1ob” Fig. 3
Claims (1)
た燃料タンクにおいて、通気管が空気室に開口している
先端の周囲に泡の流入を阻止する包囲体を設けたことを
特徴とする燃料タンク。A fuel tank having an air chamber in the upper part of the tank and a vent pipe provided in the air chamber, characterized in that a surrounding body is provided around the tip of the vent pipe opening into the air chamber to prevent bubbles from flowing into the fuel tank. and fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61136198A JPH0620822B2 (en) | 1986-06-13 | 1986-06-13 | Fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61136198A JPH0620822B2 (en) | 1986-06-13 | 1986-06-13 | Fuel tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62295723A true JPS62295723A (en) | 1987-12-23 |
| JPH0620822B2 JPH0620822B2 (en) | 1994-03-23 |
Family
ID=15169632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61136198A Expired - Lifetime JPH0620822B2 (en) | 1986-06-13 | 1986-06-13 | Fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620822B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005138722A (en) * | 2003-11-07 | 2005-06-02 | Nissan Motor Co Ltd | Fuel tank |
| JP2015182748A (en) * | 2014-03-26 | 2015-10-22 | 三菱自動車工業株式会社 | Fuel tank device for vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58126228U (en) * | 1982-02-19 | 1983-08-27 | いすゞ自動車株式会社 | Fuel tank air breather |
-
1986
- 1986-06-13 JP JP61136198A patent/JPH0620822B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58126228U (en) * | 1982-02-19 | 1983-08-27 | いすゞ自動車株式会社 | Fuel tank air breather |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005138722A (en) * | 2003-11-07 | 2005-06-02 | Nissan Motor Co Ltd | Fuel tank |
| JP2015182748A (en) * | 2014-03-26 | 2015-10-22 | 三菱自動車工業株式会社 | Fuel tank device for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0620822B2 (en) | 1994-03-23 |
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