JP2001198413A - Fuel filter - Google Patents
Fuel filterInfo
- Publication number
- JP2001198413A JP2001198413A JP2000011925A JP2000011925A JP2001198413A JP 2001198413 A JP2001198413 A JP 2001198413A JP 2000011925 A JP2000011925 A JP 2000011925A JP 2000011925 A JP2000011925 A JP 2000011925A JP 2001198413 A JP2001198413 A JP 2001198413A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- charge
- fuel
- filter paper
- polarity
- 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
- Filtration Of Liquid (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、濾過材に対する通
過摩擦に起因する静電気発生量を低減できるようにした
燃料フィルタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel filter capable of reducing the amount of static electricity generated due to friction passing through a filter medium.
【０００２】[0002]
【従来の技術】一般に、インタンク式のフィルタエレメ
ントは、濾過材を蛇腹状に折畳んで円筒形とし、これを
フィルタケースの内部に収装した構造となっている。こ
のフィルタエレメントの折畳みピッチは一定であり、こ
れにより、フィルタの入口近傍と、入口から離れた部位
との濾過流速に相違が生じ、流速の速い位置では、その
通過摩擦により静電気が発生し、フィルタ本体、燃料、
配管系統に帯電し、燃料系の劣化を早める原因となる。
また、帯電した電荷によりタンク内で火花放電した場合
には、タンク及びフィルタ本体の寿命を縮める原因とな
る。2. Description of the Related Art In general, an in-tank type filter element has a structure in which a filter material is folded into a bellows shape to form a cylindrical shape, which is housed inside a filter case. The folding pitch of the filter element is constant, which causes a difference in the filtration flow rate between the vicinity of the inlet of the filter and a part away from the inlet. Body, fuel,
It becomes charged in the piping system and causes deterioration of the fuel system earlier.
In addition, if spark discharge occurs in the tank due to the charged electric charge, the life of the tank and the filter body is shortened.
【０００３】そこで従来では、帯電量を抑制する手段と
して、主に流路形状を適正化することによって、部分に
よる流速に相違が生じない形状としていた。例えば、本
願出願人は、先にフィルタエレメントに流入する入口近
傍の濾過材の折りピッチを密にし、入口から離れた部位
では折りピッチを粗するなどの構造を採用することで、
フィルタ内での濾過流速を可及的に均一化することで、
静電気の発生を抑制してする技術を開発した。[0003] Conventionally, as a means for suppressing the amount of charge, the flow path is made appropriate by mainly optimizing the shape of the flow path so that there is no difference in flow velocity between the portions. For example, the applicant of the present application makes the folding pitch of the filter medium near the inlet that first flows into the filter element denser, and adopts a structure in which the folding pitch is roughened at a portion away from the inlet,
By making the filtration flow rate in the filter as uniform as possible,
We have developed a technology to suppress the generation of static electricity.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、折畳み
形状によった場合はある程度は静電気発生量を抑制する
が、濾過材の素材そのものによっても帯電量が左右され
るために、完全に静電気の発生を抑制するとまでは行か
ず、構造的にも、折畳み形状が複雑化するため、加工が
面倒となっていた。ところで、インタンク式燃料フィル
タに帯電する電荷の正負は、濾材の種類や本体材質によ
っても変化することが知られている。However, in the case of the folded shape, the amount of generated static electricity is suppressed to some extent. However, since the amount of charged electricity is also affected by the material of the filter material itself, the generation of static electricity is completely prevented. It did not go to the point where it was suppressed, and the folding shape became complicated from a structural point of view, and processing was troublesome. By the way, it is known that the sign of the electric charge charged in the in-tank type fuel filter also changes depending on the type of the filter medium and the material of the main body.
【０００５】本発明は、以上の着眼点に基づきなされた
ものであって、その目的は、フィルタエレメントを構成
する濾過材の帯電極性とは逆の極性をもつ素材の配置に
より、互いの帯電量を相殺し、燃料の帯電量を抑制する
ようにした燃料フィルタを提供するものである。[0005] The present invention has been made based on the above-described viewpoints, and an object of the present invention is to provide a filter element constituting a filter element having a charge polarity opposite to that of a filter medium, thereby achieving a mutual charge amount. And a fuel filter that suppresses the charge amount of the fuel.
【０００６】[0006]
【課題を解決するための手段】以上の目的を達成するた
め、本発明は、フィルタエレメントを構成する濾過材の
帯電極性とは逆の帯電極性を有する素材をフィルタケー
ス内に配置したことを特徴とする。以上の構成によれ
ば、濾過材を通過することによって正または負に帯電し
た燃料は逆の電荷特性の素材に接することにより、帯電
量が相殺される。In order to achieve the above object, the present invention is characterized in that a material having a charge polarity opposite to the charge polarity of a filter material constituting a filter element is disposed in a filter case. And According to the above configuration, the fuel charged positively or negatively by passing through the filter medium comes into contact with the material having the opposite charge characteristic, so that the charge amount is offset.
【０００７】本発明のうち請求項２に記載の発明では、
正逆の帯電極性を有する濾過材からなるフィルタエレメ
ントを二層に配置したことを特徴とする。従って、この
発明では、正または負に帯電後の燃料は、逆の帯電極性
のフィルタエレメントを通過することで、電荷がうち消
される。According to the second aspect of the present invention,
It is characterized in that filter elements made of a filtering material having opposite charging polarities are arranged in two layers. Therefore, according to the present invention, the positively or negatively charged fuel passes through the filter element having the opposite charge polarity, so that the charge is eliminated.
【０００８】本発明のうち請求項３に記載の発明は、両
帯電極性を有する濾過材料を混合し、漉き込んで混合濾
過材とし、これを蛇腹状に折畳んでフィルタエレメント
を形成したことを特徴とする。従って、この発明では、
フィルタエレメント内部で帯電量が相殺される。According to a third aspect of the present invention, a filter material having both charging polarities is mixed, and the mixture is squeezed to form a mixed filter material, which is folded in a bellows shape to form a filter element. Features. Therefore, in the present invention,
The charge is canceled inside the filter element.
【０００９】[0009]
【発明の実施の形態】以下、本発明の好ましい実施の形
態につき、添付図面を参照して詳細に説明する。図１，
２は本発明の第一実施形態を示す。まず図１は各素材の
燃料に対する各素材及び燃料の帯電序列である。図にお
ける上部側は燃料通過によりプラスに帯電する素材であ
り、また下部側は燃料通過によりマイナスに帯電する素
材を示し、各素材間距離が帯電量の大きさになる。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Figure 1
2 shows the first embodiment of the present invention. First, FIG. 1 shows the charging sequence of each material and fuel with respect to the fuel of each material. The upper side in the figure is a material that is positively charged by the passage of fuel, and the lower side is a material that is negatively charged by the passage of fuel, and the distance between the materials is the amount of charge.
【００１０】従って、図２（ａ）に示すように、従来の
単板菊花折りの濾紙１は一層構造であって、帯電序列表
より、燃料に対してマイナスの帯電極性となる。従っ
て、濾紙１を通過した燃料はプラスに帯電する。これに
対し、本発明では、（ｂ）に示すように、濾紙１とは逆
の帯電位にあるガラス繊維、合成繊維又は合成樹脂等を
含むものであって、濾紙１に相当する異符号の帯電順位
のコントロール用濾紙２を配置することで、両濾紙１，
２を通過した燃料の帯電量は相殺され大幅に抑制され、
これにより帯電に伴う弊害を除去できるものとなる。Accordingly, as shown in FIG. 2A, the conventional single-plate chrysanthemum flower-folded filter paper 1 has a single-layer structure, and has a negative charge polarity with respect to the fuel according to the charge order table. Therefore, the fuel that has passed through the filter paper 1 is positively charged. On the other hand, in the present invention, as shown in (b), the filter paper 1 contains glass fiber, synthetic fiber, synthetic resin, or the like, which is in a charge position opposite to that of the filter paper 1. By disposing the filter paper 2 for controlling the charging order, both filter papers 1,
The charge amount of the fuel passing through 2 is canceled out and greatly reduced,
As a result, the adverse effects associated with charging can be eliminated.
【００１１】コントロール用濾紙２を構成する濾過材と
しては、図１に示す帯電極性を有する素材を現用パルプ
に適宜割合で配合し漉き込むことによって、得ようとす
る帯電特性を有するコントロール用濾紙２を得ることが
出来る。As a filter material constituting the control filter paper 2, a material having the charging polarity shown in FIG. 1 is blended in an appropriate ratio into the current pulp, and the mixture is squeezed to obtain the control filter paper 2 having the charging characteristics to be obtained. Can be obtained.
【００１２】図３は、その具体的構造例を示すもので、
図中二重菊花折りした前述する逆の帯電極性を有する濾
紙１，２は、上下端板３及び多孔材料からなる内筒４に
より筒状に組立てられて二重構造のフィルタエレメント
５を構成し、フィルタケース６内に収装され、その上部
を図示しないスプリングで押えられ、また下部周囲を同
じく図示しないパッキンによって液密に保持されてい
る。FIG. 3 shows a specific example of the structure.
In the figure, the filter papers 1 and 2 having the opposite charging polarity, which are folded in double chrysanthemum flowers, are assembled into a cylindrical shape by upper and lower end plates 3 and an inner cylinder 4 made of a porous material to form a filter element 5 having a double structure. The upper part thereof is held by a spring (not shown), and the lower part is held in a liquid-tight manner by a packing (not shown).
【００１３】そして、ケース６の一次側部に開口された
入口６ａから導入された燃料はフィルタエレメント５の
外周から内周に移動し、下部端板３に開口された孔３ａ
を通じてケース６の下部出口から外部に流出する。従っ
て、ケース６から流出する燃料の帯電量は濾紙１，２を
通過する途中で互いにうち消され、大幅に抑制される。The fuel introduced from the inlet 6a opened on the primary side of the case 6 moves from the outer periphery to the inner periphery of the filter element 5, and the hole 3a opened in the lower end plate 3.
Through the lower outlet of the case 6 to the outside. Therefore, the charge amount of the fuel flowing out of the case 6 is canceled out during the passage through the filter papers 1 and 2 and is greatly suppressed.
【００１４】なお、以上の実施形態では、二重菊花状に
濾紙を配置したが、現用パルプに両帯電極性を持つ濾過
材料を混合し、これを蛇腹状に折畳んで一重のフィルタ
エレメントとすることで、濾紙内部にて帯電量の相殺を
行い、燃料の帯電量を大幅に抑制することもできる。濾
過材料としては、図１に示す帯電極性を有する素材の組
合わせから最適なものを選択すればよい。In the above embodiment, the filter paper is arranged in a double chrysanthemum flower shape. However, a filter material having both charging polarities is mixed with the working pulp, and the mixture is folded in a bellows shape to form a single filter element. This makes it possible to cancel out the charge amount inside the filter paper and to significantly suppress the charge amount of the fuel. As the filtering material, an optimum material may be selected from a combination of materials having the charging polarity shown in FIG.
【００１５】[0015]
【実施例】以上述べた濾紙の極性を利用した帯電抑制方
法の実施結果を示す。まず、以下の各濾紙を用意した。 濾紙：パルプ１００％現用濾紙 濾紙：パルプ１００％比較用試作濾紙ａ 濾紙：パルプ１００％比較用試作濾紙ｂ コントロール濾紙：パルプにガラス繊維を配合した濾紙EXAMPLES The results of carrying out the above-described charging control method using the polarity of filter paper will be described. First, the following filter papers were prepared. Filter paper: 100% pulp current filter paper Filter paper: 100% pulp comparative trial filter paper a Filter paper: 100% pulp comparative trial filter paper b Control filter paper: Filter paper with pulp mixed with glass fiber
【００１６】以上の濾紙の全電荷に対するベース発生電
荷は図４に示す特性となる。また、以上の各濾紙を実施
形態１のように二重に組合わせた場合の電荷量を図５に
示す。図において、各濾紙、、とコントロール濾
紙とを組合わせた場合には、明らかに帯電量が減少し、
静電気抑制効果が十分にあることを確認した。The charge generated by the base with respect to the total charge of the filter paper has the characteristics shown in FIG. FIG. 5 shows the amount of charge when each of the above filter papers is double-combined as in the first embodiment. In the figure, when each filter paper, and the control filter paper are combined, the charge amount clearly decreases,
It was confirmed that the effect of suppressing static electricity was sufficient.
【００１７】[0017]
【発明の効果】以上の説明により明らかなように、本発
明による燃料フィルタにあっては、フィルタエレメント
を構成する濾過材の帯電極性とは逆の極性をもつ素材の
配置により、互いの帯電量を相殺し、燃料の帯電量を抑
制出来る。As is clear from the above description, in the fuel filter according to the present invention, the charge amount of each member is changed by arranging the material having the opposite polarity to the charge polarity of the filter material constituting the filter element. And the charge amount of the fuel can be suppressed.
【図１】本発明が適用される帯電極性を持つ素材の特性
図である。FIG. 1 is a characteristic diagram of a material having a charged polarity to which the present invention is applied.
【図２】（ａ）は従来の一重形濾紙とここを通過する燃
料の帯電極性を示す説明図、（ｂ）は本発明の二重形濾
紙とここを通過する燃料の帯電極性を示す説明図であ
る。FIG. 2 (a) is an explanatory diagram showing a conventional single-type filter paper and the charging polarity of fuel passing therethrough, and FIG. 2 (b) is a description showing a double-type filter paper of the present invention and the charging polarity of fuel passing therethrough. FIG.
【図３】本発明の第一実施形態における具体的構成を示
す平断面図である。FIG. 3 is a plan sectional view showing a specific configuration according to the first embodiment of the present invention.
【図４】全負電荷量に対するベース発生電荷量を示す特
性図である。FIG. 4 is a characteristic diagram showing a base generated charge amount with respect to a total negative charge amount.
【図５】各濾紙の組合わせと電荷量との関係を示すグラ
フである。FIG. 5 is a graph showing a relationship between a combination of filter papers and a charge amount.
１ 濾紙 ２ コントロール用濾紙 ５ フィルタエレメント ６ フィルタケース 1 filter paper 2 filter paper for control 5 filter element 6 filter case
Claims (3)
帯電極性とは逆の帯電極性を有する素材をフィルタケー
ス内に配置したことを特徴とする燃料フィルタ。1. A fuel filter, wherein a material having a charge polarity opposite to a charge polarity of a filter material constituting a filter element is disposed in a filter case.
フィルタエレメントを二層構造としたことを特徴とする
請求項１に記載の燃料フィルタ。2. The fuel filter according to claim 1, wherein the filter element made of a filter material having the opposite charging polarity has a two-layer structure.
漉き込んで混合濾過材とし、これを蛇腹状に折畳んでフ
ィルタエレメントと成したことを特徴とする請求項１に
記載の燃料フィルタ。3. A filter material having both charging polarities is mixed,
The fuel filter according to claim 1, wherein the mixed filter material is squeezed to form a filter element, which is folded into a bellows shape to form a filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000011925A JP2001198413A (en) | 2000-01-20 | 2000-01-20 | Fuel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000011925A JP2001198413A (en) | 2000-01-20 | 2000-01-20 | Fuel filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001198413A true JP2001198413A (en) | 2001-07-24 |
Family
ID=18539719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000011925A Pending JP2001198413A (en) | 2000-01-20 | 2000-01-20 | Fuel filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001198413A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013188745A (en) * | 2008-01-15 | 2013-09-26 | Hydac Filtertechnik Gmbh | Filter |
| WO2015130241A1 (en) * | 2014-02-28 | 2015-09-03 | Towiwat Dhiti | Apparatus for enhancing performance of fuel combustion |
-
2000
- 2000-01-20 JP JP2000011925A patent/JP2001198413A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013188745A (en) * | 2008-01-15 | 2013-09-26 | Hydac Filtertechnik Gmbh | Filter |
| JP2016005836A (en) * | 2008-01-15 | 2016-01-14 | ハイダック フィルターテヒニク ゲーエムベーハー | filter |
| JP2017100126A (en) * | 2008-01-15 | 2017-06-08 | ハイダック フィルターテヒニク ゲーエムベーハー | filter |
| WO2015130241A1 (en) * | 2014-02-28 | 2015-09-03 | Towiwat Dhiti | Apparatus for enhancing performance of fuel combustion |
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