JPH05139169A - Wave dissipation member - Google Patents
Wave dissipation memberInfo
- Publication number
- JPH05139169A JPH05139169A JP30770891A JP30770891A JPH05139169A JP H05139169 A JPH05139169 A JP H05139169A JP 30770891 A JP30770891 A JP 30770891A JP 30770891 A JP30770891 A JP 30770891A JP H05139169 A JPH05139169 A JP H05139169A
- Authority
- JP
- Japan
- Prior art keywords
- resin materials
- fuel
- flow
- wave
- spaces
- 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
Links
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えば自動車用燃料
タンクの内部に使用されて好適な消波部材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wave-eliminating member suitable for use inside a fuel tank for automobiles.
【０００２】[0002]
【従来の技術】消波部材が自動車用燃料タンクに用いら
れる場合を例に説明すると、一般に、燃料タンクの内部
には、燃料の大きな流動を抑えるためのいわゆるバッフ
ルといわれる消波装置が設けられ、燃料タンク内におけ
る燃料の流動に起因した液音の発生やフロートの故障を
できる限り少なくするような工夫がなされている。2. Description of the Related Art A case in which a wave breaking member is used in a fuel tank for an automobile will be explained as an example. Generally, a wave breaking device called a baffle for suppressing a large flow of fuel is provided inside the fuel tank. The device has been devised to minimize the occurrence of liquid noise and float failure due to the flow of fuel in the fuel tank.
【０００３】従来の燃料タンクにおいては、例えば燃料
タンク本体内部に設けられるブラケットとしての枠部が
金属材料で形成され、この枠部の前後端上下面に多数の
孔の形成された垂直部材が枠部と一体に設けられ、この
枠部の中央に、断面が円形の細長い繊維状の熱可塑性樹
脂材料を互いに絡み合わせ積み重ねるようにして形成し
た消波部材が設けられ、この積み重ねられた部材どおし
の隙間がその厚みや面方向に互いに連続した多数の空間
を形成するようにしたものが知られている。In a conventional fuel tank, for example, a frame portion as a bracket provided inside the fuel tank main body is formed of a metal material, and a vertical member having a large number of holes formed on the upper and lower surfaces of the front and rear ends of the frame portion is a frame. A wave-dissipating member, which is integrally formed with the frame part and is formed by intertwining and stacking elongated fibrous thermoplastic resin materials having a circular cross section, is provided in the center of the frame part. It is known that the crevices form a large number of spaces that are continuous with each other in the thickness and the surface direction.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、かかる
従来構造の消波装置においては、金属材料を使用し多数
の孔を形成して消波部材としたものに比較すれば、燃料
の流動エネルギーを吸収する効果はあるものの、細長い
繊維状の樹脂材料の断面が円形をなしているため、燃料
の流れる方向が一定になり、消波に寄与する乱流の発生
が不十分であった。However, in such a conventional wave canceling device, as compared with a wave canceling member in which a large number of holes are formed by using a metal material, the flow energy of the fuel is absorbed. However, since the elongated fibrous resin material has a circular cross section, the fuel flow direction is constant, and the turbulent flow that contributes to wave extinction is insufficient.
【０００５】本発明は、かかる消波装置の従来構造から
発生する問題点を解消するため、流体の流れに乱流を生
じやすい断面構造をとり入れ、流動のエネルギーを十分
に吸収して液音の発生を抑えた消波部材を提供すること
を目的とする。In order to solve the problems caused by the conventional structure of such a wave-eliminating device, the present invention adopts a cross-sectional structure which tends to cause turbulence in the flow of a fluid, and sufficiently absorbs the energy of the flow to produce a liquid noise. It is an object of the present invention to provide a wave canceling member whose occurrence is suppressed.
【０００６】[0006]
【課題を解決するための手段】かかる目的を達成するた
めに、本発明の消波装置に用いられる消波部材は、繊維
状にした樹脂材料を互いに絡み合わせ積み重ねるように
するとともに、前記樹脂材料を異形断面に形成したこと
を特徴とする。In order to achieve such an object, the wave-dissipating member used in the wave-dissipating device of the present invention is configured such that fibrous resin materials are entwined with each other and stacked, and Is formed in a modified cross section.
【０００７】[0007]
【作用】本発明によれば、消波部材を構成する繊維状に
した樹脂材料を異形断面に形成したことにより、乱流が
十分に発生して流体の流動エネルギーが十分に吸収され
る。したがって、液音の発生も十分抑えることができ
る。According to the present invention, since the fibrous resin material forming the wave-eliminating member is formed in an irregular cross section, turbulent flow is sufficiently generated and the flow energy of the fluid is sufficiently absorbed. Therefore, the generation of liquid noise can be sufficiently suppressed.
【０００８】[0008]
【実施例】以下、図面に示した実施例にもとづき、本発
明にかかる消波部材を自動車用燃料タンクに用いた場合
を例に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will be given below of an example in which the wave breaking member according to the present invention is used in a fuel tank for an automobile, based on an embodiment shown in the drawings.
【０００９】本発明にかかる消波部材Ｘは、図１に示す
ように、ブラケット１に形成される垂直部材２Ａおよび
２Ｂ、水平部材３によって構成される本体中、水平部材
３の壁体として使用される。本実施例においては、枠体
としてのブラケット１は金属材料で形成され、多数の孔
５の形成された垂直部材２Ａ，２Ｂはブラケット１を上
下に折り曲げる形で上下面に垂直壁として一体に構成さ
れる。ブラケット１の中央部には水平部材３が位置し、
壁体として樹脂製の消波部材Ｘが組込まれる。As shown in FIG. 1, the wave breaking member X according to the present invention is used as a wall member of the horizontal member 3 in the main body constituted by the vertical members 2A and 2B formed on the bracket 1 and the horizontal member 3. To be done. In this embodiment, the bracket 1 as a frame is made of a metal material, and the vertical members 2A and 2B having a large number of holes 5 are integrally formed as vertical walls on the upper and lower surfaces by bending the bracket 1 up and down. To be done. The horizontal member 3 is located at the center of the bracket 1,
The wave-absorbing member X made of resin is incorporated as a wall body.
【００１０】燃料タンク本体４に消波部材Ｘを組み込ん
だ消波装置を取り付けるに際しては、水平部材３は、タ
ンク本体４のアッパシェル４Ａおよびロアシェル４Ｂと
の接合フランジ６Ａおよび６Ｂまで延出するように形成
されているから、消波部材Ｘの組み込まれた水平部材３
を接合フランジ６Ａおよび６Ｂの間に介装し、各コーナ
ーに設けられた位置決め孔７をボルトじめした後、接合
面はシーム溶接を行う。When the wave canceling device incorporating the wave canceling member X is attached to the fuel tank body 4, the horizontal member 3 is extended to the joint flanges 6A and 6B with the upper shell 4A and the lower shell 4B of the tank body 4. Since it is formed, the horizontal member 3 in which the wave-dissipating member X is incorporated
Is interposed between the joint flanges 6A and 6B, and the positioning holes 7 provided at each corner are bolted, and then the joint surface is seam welded.
【００１１】水平部材３に組込まれる壁体である消波部
材Ｘは、図２に示すように、細長い繊維状の熱可塑性樹
脂材料（例えばポリプロピレン，ポリエチレン等のポリ
オレフィン系樹脂）３′を互いに絡み合わせた糸屑状に
集合させて積み重ねて作られるものであり、燃料が通過
することができるように、樹脂材料３′どおしの隙間が
その厚みおよび面方向に互いに連続した多数の空間８を
形成して迷路のように複雑に入り組んでいる。したがっ
て、この入り組んだ空間８を燃料が通過するときに、燃
料の流動エネルギーが序々に吸収されて行くようになっ
ている。As shown in FIG. 2, the wave-dissipating member X, which is a wall incorporated in the horizontal member 3, entangles a slender fibrous thermoplastic resin material (for example, a polyolefin resin such as polypropylene or polyethylene) 3'with each other. It is made by collecting and stacking it in the form of combined lint, and a large number of spaces 8 in which the gaps between the resin materials 3'are continuous with each other in its thickness and plane direction so that fuel can pass through. Forming a complex and complicated like a maze. Therefore, when the fuel passes through the complicated space 8, the flow energy of the fuel is gradually absorbed.
【００１２】なお、消波部材Ｘは、水平面内で矢印のよ
うに自由に動くノズル９から溶融させた樹脂材料３′を
細長く繊維状にして水面１０に垂下させれば、絡み合わ
せ積み重ねられた形で形成される。The wave-eliminating member X is entwined and stacked by making the resin material 3'melted from the nozzle 9 which freely moves in the horizontal plane as shown by an arrow into a slender fiber shape and hanging it on the water surface 10. Formed in shape.
【００１３】一方、本発明にかかる水平部材３の壁体を
構成する繊維状の樹脂材料３′は円形を除く異形断面
３′Ａに形成されている。図３には異形断面の３つの態
様が示されているが、これらはいずれも繊維長全長にわ
たって異形断面３′Ａが形成されている場合である。こ
れらは、図２に示したノズル９の吐出孔をそれぞれの断
面形状にすれば容易に製造することが可能となる。異形
断面の形成により、消波部材Ｘとして絡み合わせ積み重
ねられた繊維状の樹脂材料３′は、断面円形のものより
強い乱流状態が形成され、燃料の吸収されるエネルギー
は確実に増大する。On the other hand, the fibrous resin material 3'constituting the wall of the horizontal member 3 according to the present invention is formed in a modified cross section 3'A other than a circular shape. FIG. 3 shows three modes of the modified cross section, which are all cases where the modified cross section 3'A is formed over the entire length of the fiber. These can be easily manufactured by forming the discharge holes of the nozzle 9 shown in FIG. Due to the formation of the irregular cross section, the fibrous resin material 3 ′ entwined and stacked as the wave canceling member X has a stronger turbulent flow state than that of the circular cross section, and the energy absorbed by the fuel is surely increased.
【００１４】なお、図３には異形断面の形状を３つ明示
したが、本発明の趣旨はこれらに限定されないことはい
うまでもないし、繊維長方向のみならず、他方向に対し
て設けられてもさしつかえない。Although three shapes of modified cross-sections are shown in FIG. 3, it goes without saying that the gist of the present invention is not limited to these, and the shapes are provided not only in the fiber length direction but also in other directions. But it doesn't matter.
【００１５】[0015]
【発明の効果】以上、図面に示した実施例にもとづき詳
細に説明したように、本発明によれば、水平部材を構成
する壁体の繊維状にした樹脂材料を円形を除く異形断面
に形成したので、繊維状の樹脂材料３′にある空間８を
通過する流体は強い乱流状態となり、吸収されるエネル
ギーが増大するから、流体の流動に起因する液音の発生
やフロートの故障を少なくすることが可能となる。As described above in detail with reference to the embodiments shown in the drawings, according to the present invention, the fibrous resin material of the wall constituting the horizontal member is formed into an irregular cross section except a circle. Therefore, the fluid passing through the space 8 in the fibrous resin material 3'is in a strong turbulent state, and the energy absorbed is increased, so that the generation of liquid noise and the failure of the float due to the fluid flow are reduced. It becomes possible to do.
【図１】この発明にかかる消波部材を燃料タンクに組込
んだ状態を示す斜視図で、（Ａ）は組立後を、（Ｂ）は
組立前を示している。FIG. 1 is a perspective view showing a state in which a wave breaking member according to the present invention is assembled in a fuel tank, (A) showing after assembly and (B) showing before assembly.
【図２】この発明にかかる消波部材の詳細図である。FIG. 2 is a detailed view of the wave breaking member according to the present invention.
【図３】この発明における繊維状の樹脂材料に関する実
施例を示す断面図である。FIG. 3 is a cross-sectional view showing an example of a fibrous resin material according to the present invention.
１ ブラケット ２Ａ，２Ｂ 垂直部材 ３ 水平部材 ３′繊維状の樹脂材料 ３′Ａ 異形断面をした繊維状の樹脂材料 ４ 燃料タンク本体 ５ 孔 ８ 空間 Ｘ 消波部材 1 bracket 2A, 2B vertical member 3 horizontal member 3'fibrous resin material 3'A fibrous resin material with irregular cross section 4 fuel tank body 5 holes 8 space X wave-eliminating member
Claims (1)
せ積み重ねるようにするとともに、前記樹脂材料を異形
断面に形成したことを特徴とする消波部材。1. A wave-breaking member, characterized in that fibrous resin materials are entwined with each other and stacked, and the resin material is formed in an irregular cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30770891A JPH05139169A (en) | 1991-11-22 | 1991-11-22 | Wave dissipation member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30770891A JPH05139169A (en) | 1991-11-22 | 1991-11-22 | Wave dissipation member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05139169A true JPH05139169A (en) | 1993-06-08 |
Family
ID=17972284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30770891A Pending JPH05139169A (en) | 1991-11-22 | 1991-11-22 | Wave dissipation member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05139169A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08242743A (en) * | 1995-03-10 | 1996-09-24 | Ochiai Hamono Kogyo Kk | Sulky type working machine for tea garden |
| GB2393697A (en) * | 2002-10-01 | 2004-04-07 | Nifco Inc | Sound absorbing device for fuel tank |
| EP2065245A1 (en) | 2007-11-27 | 2009-06-03 | Honda Motor Co., Ltd. | Fuel tank |
| KR20180124997A (en) * | 2016-04-29 | 2018-11-21 | 카우텍스 텍스트론 게엠베하 운트 콤파니 카게 | LIQUID CONTAINER, LIQUID CAR LIQUID, AND METHOD FOR MANUFACTURING STRUCTURE FOR REDUCING SLOSING SOUND |
-
1991
- 1991-11-22 JP JP30770891A patent/JPH05139169A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08242743A (en) * | 1995-03-10 | 1996-09-24 | Ochiai Hamono Kogyo Kk | Sulky type working machine for tea garden |
| GB2393697A (en) * | 2002-10-01 | 2004-04-07 | Nifco Inc | Sound absorbing device for fuel tank |
| US6966401B2 (en) | 2002-10-01 | 2005-11-22 | Nifco Inc. | Sound absorbing device for fuel tank |
| GB2393697B (en) * | 2002-10-01 | 2006-03-22 | Nifco Inc | Sound absorbing device for fuel tank |
| EP2065245A1 (en) | 2007-11-27 | 2009-06-03 | Honda Motor Co., Ltd. | Fuel tank |
| US8590565B2 (en) | 2007-11-27 | 2013-11-26 | Honda Motor Co., Ltd. | Fuel tank |
| KR20180124997A (en) * | 2016-04-29 | 2018-11-21 | 카우텍스 텍스트론 게엠베하 운트 콤파니 카게 | LIQUID CONTAINER, LIQUID CAR LIQUID, AND METHOD FOR MANUFACTURING STRUCTURE FOR REDUCING SLOSING SOUND |
| US11325464B2 (en) | 2016-04-29 | 2022-05-10 | Kautex Textron Gmbh & Co., Kg | Method for producing a liquid container, liquid container for a motor vehicle, and structure for reducing sloshing sounds |
| US11872880B2 (en) | 2016-04-29 | 2024-01-16 | Kautex Textron Gmbh & Co. Kg | Method for producing a liquid container, liquid container for a motor vehicle, and structure for reducing sloshing sounds |
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