JPH0722669B2 - Filtration element - Google Patents
Filtration elementInfo
- Publication number
- JPH0722669B2 JPH0722669B2 JP61125013A JP12501386A JPH0722669B2 JP H0722669 B2 JPH0722669 B2 JP H0722669B2 JP 61125013 A JP61125013 A JP 61125013A JP 12501386 A JP12501386 A JP 12501386A JP H0722669 B2 JPH0722669 B2 JP H0722669B2
- Authority
- JP
- Japan
- Prior art keywords
- outer peripheral
- filtration
- peripheral ring
- ring
- activated carbon
- 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 - Lifetime
Links
- 238000001914 filtration Methods 0.000 title claims description 56
- 230000002093 peripheral effect Effects 0.000 claims description 34
- 239000000446 fuel Substances 0.000 claims description 31
- 239000000428 dust Substances 0.000 claims description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 14
- 208000032826 Ring chromosome 3 syndrome Diseases 0.000 description 9
- 238000001179 sorption measurement Methods 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Description
【発明の詳細な説明】 （発明の利用分野） 本発明は内燃機関用エアクリーナのろ過エレメントに関
し、より詳しくは、エアクリーナのケースとキヤツプと
により保持される外周リングと、この外周リングの内方
に位置する内筒と、前記外周リングと内筒との間に配設
された波形断面形状のろ材から成るろ過部分とを有し、
吸入空気を前記外周リングの軸方向に前記ろ過部分を通
過させるようになつている軸流型ろ過エレメントに関す
る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter element for an air cleaner for an internal combustion engine, and more particularly, to an outer peripheral ring held by a case and a cap of the air cleaner, and an inner ring of the outer peripheral ring. An inner cylinder that is positioned, and a filtering portion that is formed between the outer peripheral ring and the inner cylinder and that is composed of a filter medium having a corrugated cross-sectional shape,
An axial flow type filtration element adapted to pass intake air axially through the outer peripheral ring through the filtration portion.
（従来の技術） 内燃機関（以下「エンジン」と呼ぶ）が運転状態から停
止したとき、キヤブレターから蒸発した燃料蒸気がエア
クリーナ内に充満し、エンジンの再始動時にエンジンに
吸入される吸気が過濃となり再始動が困難になるという
問題や、エアクリーナ内に充満した蒸発燃料がエアクリ
ーナの空気取り入れ管を通つて大気中へ放出され、環境
汚染の原因となるという問題を防止するため、エアクリ
ーナには種々の対策が施されている。かかる対策を施さ
れたエアクリーナの一例が実開昭59−54740号公報に示
されている。この公報に記載されているエアクリーナに
おいては、ダストろ過専用の軸流型ろ過エレメントの下
方に、すなわち、キヤブレター側に、活性炭素繊維を含
むろ材から成る蒸発燃料吸着エレメントが配設されてい
る。(Prior Art) When an internal combustion engine (hereinafter referred to as “engine”) is stopped from an operating state, the fuel vapor evaporated from the carburetor fills the air cleaner, and the intake air drawn into the engine when the engine is restarted is excessively rich. In order to prevent the problem that it becomes difficult to restart and that the evaporated fuel filled in the air cleaner is released into the atmosphere through the air intake pipe of the air cleaner and causes environmental pollution, various types of air cleaners are used. The measures are taken. An example of an air cleaner provided with such measures is disclosed in Japanese Utility Model Laid-Open No. 59-54740. In the air cleaner described in this publication, an evaporated fuel adsorbing element made of a filter medium containing activated carbon fibers is arranged below an axial flow type filtration element dedicated to dust filtration, that is, on the side of the carburetor.
（発明が解決しようとする問題点） 前記公報に記載されているエアクリーナにおいては、前
述のように、ダストろ過専用のろ過エレメントの他に蒸
発燃料吸着用のエレメントを両者が直列になるように配
置されているから、エアクリーナ全体の寸法、特に、軸
方向の寸法、が大きくなり、車両の狭いエンジンルーム
内に収納出来ない場合が生じるという問題がある。ま
た、２個のエレメントを用いているので、その分だけ製
造コストが高くなるばかりでなく、吸入空気流に対する
抵抗が大となり、エンジンの加速性能が低下するという
問題もある。本発明はこれらの問題を解消せんとするも
のである。(Problems to be Solved by the Invention) In the air cleaner described in the above publication, as described above, in addition to the filter element dedicated to dust filtration, the element for adsorbing fuel vapor is arranged in series. Therefore, there is a problem in that the size of the entire air cleaner, especially the size in the axial direction, becomes large, and the air cleaner cannot be stored in a narrow engine room of the vehicle. Further, since the two elements are used, not only the manufacturing cost is increased correspondingly, but also the resistance to the intake air flow is increased, and the acceleration performance of the engine is deteriorated. The present invention is intended to solve these problems.
（問題点を解決する手段） 本発明は、エアクリーナのケースとキャップとにより保
持される外周リングと、この外周リングの内方に位置す
る内筒と、前記外周リングと前記内筒との間に配設され
た波形断面形状のろ材から成るろ過部分とを有し、吸入
空気を前記外周リングの軸方向に前記ろ過部分を通過さ
せるようになっている軸流型ろ過エレメントであって、
前記ろ過部分は前記外周リングから前記内筒の方へ次第
に高く盛り上がる形状を備えており、また、前記ろ過部
分には蒸発燃料を吸着するための活性炭含有材料が少な
くとも前記外周リングに隣接する区域に配設されている
とともに、活性炭含有材料が配設された区域以外の前記
ろ過部分の区域はダストろ過を行なうための活性炭非含
有材料で作られていることを特徴とする。(Means for Solving Problems) According to the present invention, an outer peripheral ring held by a case and a cap of an air cleaner, an inner cylinder positioned inside the outer peripheral ring, and between the outer peripheral ring and the inner cylinder. An axial flow type filtration element having a filtering portion made of a filter medium having a corrugated cross-sectional shape and adapted to pass intake air through the filtering portion in an axial direction of the outer peripheral ring,
The filtration portion has a shape that gradually rises from the outer peripheral ring toward the inner cylinder, and the filtration portion has an activated carbon-containing material for adsorbing evaporated fuel in at least an area adjacent to the outer peripheral ring. It is characterized in that the areas of the filtering portion, which are provided and in which the activated carbon-containing material is provided, are made of an activated carbon-free material for performing dust filtration.
（作用） キヤブレターから蒸発してエアクリーナに入つた燃料蒸
気はろ過エレメントに配置された蒸発燃料吸着材料に吸
着され、エンジンが再始動されたときには、この吸着さ
れた蒸発燃料がろ過エレメントから離脱されてキヤブレ
ターを経てエンジン内へ吸入される。(Function) The fuel vapor that has evaporated from the carburetor and entered the air cleaner is adsorbed by the evaporated fuel adsorbent material arranged in the filter element, and when the engine is restarted, this adsorbed evaporated fuel is separated from the filter element. It is sucked into the engine through the carburetor.
（実施例） 第１図−第６図は本発明の第１実施例のろ過エレメント
１を示す。ろ過エレメント１は内筒２、外周リング３、
及び内筒２と外周リング３との間に配設された概略環状
のろ過部分４とを有する。ろ過部分４は内筒２を中心と
して同心円状に配置された多数のひだを有し、これらの
ひだは、ろ過エレメントを軸方向に断面すると、第１図
に示すように、波形に見える。ろ過部分４はダストろ過
部分4bと蒸発燃料吸着部分5bとから成る。(Embodiment) FIGS. 1 to 6 show a filtration element 1 according to a first embodiment of the present invention. The filtration element 1 includes an inner cylinder 2, an outer ring 3,
And a substantially annular filtration portion 4 disposed between the inner cylinder 2 and the outer peripheral ring 3. The filtration part 4 has a number of pleats arranged concentrically around the inner tube 2, which folds appear wavy when the filtration element is axially sectioned, as shown in FIG. The filtering part 4 is composed of a dust filtering part 4b and an evaporated fuel adsorbing part 5b.
ダストろ過部分4bは第２図に示す扇形のろ材4aを第３図
に示すように多数の同心状のひだを有するリング状に成
形して作られたものである。同様に、蒸発燃料吸着部分
5bは第２図に示す扇形のろ材4aの外周側の円弧の長さに
等しい長さの内周側円弧を有する扇形の活性炭素繊維ろ
紙5aを、第５図に示すように同心的な複数の環状のひだ
を有するリング形に成形することによつて作られたもの
である。The dust filtering portion 4b is formed by molding the fan-shaped filter medium 4a shown in FIG. 2 into a ring shape having a large number of concentric folds as shown in FIG. Similarly, evaporative fuel adsorption part
5b is a fan-shaped activated carbon fiber filter paper 5a having an inner circular arc having a length equal to that of the circular arc on the outer peripheral side of the fan-shaped filter medium 4a shown in FIG. It is made by molding into a ring shape having an annular fold.
ダストろ過部分4bの外周縁は蒸発燃料吸着部分5bの内周
縁に例えば樹脂等で一体に固着されかつリング状のリブ
６で一体に連結保持される。また、ダストろ過部分4bの
内周縁は内筒２の外周面にシール性を保つて取り付けら
れ、同様に、蒸発燃料吸着部分5bの外周縁は外周リング
３の円筒部分3bの内周面にシール性を保つて取り付けら
れる。また、第６図に示すように、内筒２と外周リング
３とは複数の半径方向リブ７で連結され、ろ材4aと5aと
をリング状に曲げ成形した時に互いに継ぎ合わされる縁
部（第２図及び第４図に示す扇形の両側端）は半径方向
リブ７内に収納され、継ぎ合わせ部のシール性が保たれ
る。かくして成るろ過エレメント１は、内筒２とダスト
ろ過部分4bとが蒸発燃料吸着部分5bと外周リング３より
も幾分高く盛り上がつた形状を呈する。尚、外周リング
３は外周フランジ3aを有する。The outer peripheral edge of the dust filtering portion 4b is integrally fixed to the inner peripheral edge of the evaporated fuel adsorbing portion 5b with, for example, a resin or the like, and is integrally connected and held by a ring-shaped rib 6. Further, the inner peripheral edge of the dust filtering portion 4b is attached to the outer peripheral surface of the inner cylinder 2 while keeping the sealing property, and similarly, the outer peripheral edge of the evaporated fuel adsorbing portion 5b is sealed to the inner peripheral surface of the cylindrical portion 3b of the outer peripheral ring 3. It can be attached while maintaining its sex. Further, as shown in FIG. 6, the inner cylinder 2 and the outer peripheral ring 3 are connected by a plurality of radial ribs 7, and the edge portions (the first portion and the second portion) which are joined to each other when the filter media 4a and 5a are bent and formed into a ring shape. The fan-shaped end portions (shown in FIG. 2 and FIG. 4) are housed in the radial ribs 7 and the sealing property of the joint is maintained. The filter element 1 thus formed has a shape in which the inner cylinder 2 and the dust filter portion 4b are slightly higher than the evaporative fuel adsorption portion 5b and the outer peripheral ring 3. The outer peripheral ring 3 has an outer peripheral flange 3a.
次に、上述のろ過エレメントを組み込んだエアクリーナ
の構造について第７図を参照して説明する。Next, the structure of the air cleaner incorporating the above-mentioned filtration element will be described with reference to FIG.
エアクリーナはケース８とキヤツプ16とを有し、ろ過エ
レメント１の外周リング３の外周フランジ3aがケース８
の外周フランジとキヤツプ16の外周フランジとの間にガ
スケツト9aを介して挟持されており、この場合に、内筒
２の頂壁とキヤツプ16の頂壁の中央部の内面との間に第
２のガスケツト9bが介装されている。かくして、ケース
８とろ過エレメント１との間に第１の空間13が形成さ
れ、また、キヤツプ16とろ過エレメント１との間に第２
の空間14が形成される。キヤツプ16の周壁には空気取り
入れ管15が突設されている。The air cleaner has a case 8 and a cap 16, and the outer peripheral flange 3a of the outer peripheral ring 3 of the filtration element 1 is the case 8
It is sandwiched by a gasket 9a between the outer peripheral flange of the cap 16 and the outer peripheral flange of the cap 16, and in this case, the second wall is provided between the top wall of the inner cylinder 2 and the inner surface of the central portion of the top wall of the cap 16. Gasket 9b is installed. Thus, a first space 13 is formed between the case 8 and the filtration element 1, and a second space is provided between the cap 16 and the filtration element 1.
A space 14 is formed. An air intake pipe 15 is projectingly provided on a peripheral wall of the cap 16.
ケース８の底壁の中央部に空気出口8aが突設され、空気
出口8aの下縁が第３のガスケツト9cを介してキヤブレタ
ー10に接続され、この場合に、キヤブレターから突出す
るスタツドボルト11がケース８の空気出口8a、ろ過エレ
メント１の内筒２の中央の穴、第２のガスケツト9b、及
びキヤツプ16の中央部の小穴を貫通してエアクリーナの
キヤツプの外まで突出し、スタツドボルト11のこの突出
した端部に蝶ナツト12を螺合させることにより、エアク
リーナがキヤブレターに対して取り外し自在に取り付け
られる。An air outlet 8a is provided at the center of the bottom wall of the case 8, and the lower edge of the air outlet 8a is connected to the carburetor 10 via a third gasket 9c. In this case, the stud bolt 11 protruding from the carburetor is The air outlet 8a of the case 8, the center hole of the inner cylinder 2 of the filtration element 1, the second gasket 9b, and the small hole at the center of the cap 16 are projected to the outside of the cap of the air cleaner, and the stud bolt 11 The air cleaner is detachably attached to the carburetor by screwing the butterfly nut 12 onto the projecting end.
次に作動について説明する。Next, the operation will be described.
エンジン運転中は、外気は空気取り入れ管15を通りエア
クリーナ内の空間14へ流入し、ろ過エレメント１のダス
トろ過部分4bと蒸発燃料吸着部分5bとを通過することに
よつてろ過され、清浄な空気が空間13から空気出口8aを
通りキヤブレター10を経てエンジンへ吸入される。During operation of the engine, the outside air flows into the space 14 inside the air cleaner through the air intake pipe 15 and is filtered by passing through the dust filtration portion 4b and the evaporated fuel adsorption portion 5b of the filtration element 1 to obtain clean air. Is sucked into the engine from the space 13 through the air outlet 8a and the carburetor 10.
エンジンが運転状態から停止したとき、キヤブレターか
ら蒸発した燃料蒸気がエアクリーナ内へ入るが、ろ過エ
レメント１の外周寄りに位置して設けられた蒸発燃料吸
着部分5bに吸着され、エアクリーナの外部へは放出され
ない。すなわち、燃料蒸気はキヤブレター10の内部から
上昇したものではあつても、エアクリーナ内に入つた時
点ではエアクリーナ内の空気に比較すると特に軽いとい
うものではないから、燃料蒸気はエアクリーナ内のうち
でも低い位置に淀む傾向があるので、ろ過エレメント１
の低い区域に位置する蒸発燃料吸着部分5bによつて吸着
され、ダストろ過部分4bは燃料で濡れない。そして、エ
ンジンが再始動されると、ろ過エレメントに吸着されて
いた燃料はろ過エレメントから脱離されてキヤブレター
を経てエンジン内へ吸入されるので、省資源に寄与す
る。When the engine is stopped from the operating state, the fuel vapor evaporated from the carburetor enters the air cleaner, but it is adsorbed by the evaporated fuel adsorbing portion 5b provided near the outer periphery of the filtration element 1 and released to the outside of the air cleaner. Not done. That is, even though the fuel vapor has risen from the inside of the carburetor 10, it is not particularly light when compared with the air in the air cleaner when it enters the air cleaner. Filter element 1 as it tends to stagnant
Is adsorbed by the evaporative fuel adsorption portion 5b located in a low area of the dust filter, and the dust filtration portion 4b is not wetted by the fuel. Then, when the engine is restarted, the fuel adsorbed on the filter element is desorbed from the filter element and sucked into the engine through the carburetor, which contributes to resource saving.
上述の実施例ではダストろ過部分4bと蒸発燃料吸着部分
5bはそれぞれ独立して準備されてからリブ６で一体に連
結保持されているが、第８図に示すような扇形のろ材4a
の１部に例えば網目状の加熱溶融型繊維状接着剤を介し
て第９図で5aで示す活性炭素繊維ろ紙を第９図及び第9A
図に示すように張り合わせてから、第10図に示すよう
に、リング状波形に折り曲げ成形して、これに内筒２と
外周リング３とを取り付けてもよい。従つて、この場合
には、第１の実施例で用いているリブ６は不要である。In the above-mentioned embodiment, the dust filtration portion 4b and the evaporated fuel adsorption portion
5b are individually prepared and then integrally connected and held by the ribs 6, but a fan-shaped filter medium 4a as shown in FIG.
FIG. 9 and FIG. 9A with the activated carbon fiber filter paper shown in FIG.
It is also possible to attach the inner cylinder 2 and the outer ring 3 to the ring-shaped corrugated product as shown in FIG. Therefore, in this case, the rib 6 used in the first embodiment is unnecessary.
また、第11図に示すように、第８図に示したごときダス
トろ過用のろ材4aの外周寄りの部分とこの部分に向き合
つて配置された別のろ材18との間に形成される波形の空
間に粒状活性炭素17を収納配置して蒸発燃料吸着部分4b
を構成してもよい。この場合、ろ材18の半径方向最内端
とこれに隣接するろ材4aのひだとがリブ６で連結保持さ
れ、このリブ６よりも半径方向内方に位置するろ材4aの
部分5bがダストろ過部分を構成する。また、ろ材18はダ
ストろ過用ろ材でも活性炭素繊維ろ紙でもよく、要する
に、粒状活性炭素17が吸入空気流の下流側、すなわち、
空間13側へ落下しないように保持しかつ空気の流れに対
してろ材4aよりも大きな抵抗を与えないものであれば良
い。Further, as shown in FIG. 11, a waveform formed between the portion of the filter material 4a for dust filtration near the outer periphery and another filter material 18 arranged facing this portion as shown in FIG. The granular activated carbon 17 is housed and arranged in the space of
May be configured. In this case, the radially innermost end of the filter medium 18 and the pleats of the filter medium 4a adjacent thereto are connected and held by the rib 6, and the portion 5b of the filter medium 4a located radially inward of the rib 6 is the dust filtering portion. Make up. Further, the filter medium 18 may be a dust filter medium or an activated carbon fiber filter paper, in short, the granular activated carbon 17 is on the downstream side of the intake air flow, that is,
Any material may be used as long as it is held so as not to drop to the space 13 side and does not give greater resistance to the air flow than the filter medium 4a.
更に、第11図に示す実施例におけるろ材18が波形断面の
ものである必要はなく、第12図に示すように、平板状の
もの18′でも良い。この場合、活性炭素17は波形に折り
曲げ形成されたろ材4aと平板状のろ材18′との間の空間
に収納配置される。Further, the filter medium 18 in the embodiment shown in FIG. 11 does not need to have a corrugated cross section, and may have a flat plate-like shape 18 'as shown in FIG. In this case, the activated carbon 17 is housed and arranged in the space between the filter medium 4a and the flat plate-shaped filter medium 18 ', which are bent in a wave shape.
本発明のろ過エレメントは必ずしも環状または円形リン
グ状である必要はなく、第13図に示すように、楕円形ま
たは長円形のものでも良い。The filter element of the present invention does not necessarily have an annular or circular ring shape, but may have an elliptical or oval shape as shown in FIG.
また、本発明において、蒸発燃料吸着部分5bは、ろ過エ
レメント１の外周リング３に隣接する区域の全域（第６
図）に設ける必要はなく、第14図および第15図のように
その区域の一部に設けてもよい。In addition, in the present invention, the evaporated fuel adsorption portion 5b is the entire area (6th area) adjacent to the outer peripheral ring 3 of the filtration element 1.
However, it may be provided in a part of the area as shown in FIGS. 14 and 15.
（発明の効果） 本発明のろ過エレメントは活性炭含有材料を配設された
蒸発燃料吸着作用を行なう区域と、それ以外の活性炭非
含有材料で作られたダストろ過作用を行なう区域とを有
するので、エアクリーナは単一のろ過エレメントを備え
れば十分であるから、エアクリーナの薄型化に寄与しか
つ製造コスト低減に貢献する。しかも、活性炭含有区域
のほかにダストろ過のための活性炭非含有区域を有して
いるので、吸入空気流に対する抵抗が小さいから、エン
ジンの加速性能を良好にする。更に、燃料蒸気はエアク
リーナ内のうちでも低い位置に淀む傾向があるから、低
い区域に位置する蒸発燃料吸着作用を行なう区域によっ
て有効に吸着され、ダストろ過作用を行なう区域は燃料
で濡れる惧れは少なく、吸入空気流に対する抵抗を大と
してしまうことはない。加えて、エンジンが再始動され
ると、ろ過エレメントに吸着されていた燃料はろ過エレ
メントから離脱されてキャブレターを経てエンジン内へ
吸入されるので、省資源に寄与する。(Advantages of the Invention) Since the filter element of the present invention has an area for adsorbing evaporated fuel, which is provided with an activated carbon-containing material, and an area for performing dust filtration, which is made of other active carbon-free material, Since it suffices for the air cleaner to have a single filtration element, it contributes to making the air cleaner thinner and reducing the manufacturing cost. In addition to the active carbon-containing area, the active carbon-free area for dust filtration is provided, so that the resistance to the intake air flow is small, so that the acceleration performance of the engine is improved. Further, since the fuel vapor tends to stagnant at a low position in the air cleaner, it is effectively adsorbed by the evaporative fuel adsorption region located at a low region, and the dust filtration region is not likely to get wet with fuel. It does not increase the resistance to the intake air flow. In addition, when the engine is restarted, the fuel adsorbed on the filter element is separated from the filter element and is sucked into the engine through the carburetor, which contributes to resource saving.
第１図は本発明の一実施例によるろ過エレメントの１部
を破断して示す１部断面斜視図、 第２図はダストろ過用のろ材の平面図、 第３図は第２図のろ材を折り曲げ成形して成るダストろ
過部分の斜視図、 第４図は活性炭素繊維ろ紙の平面図、 第５図は第４図のろ紙を折り曲げ成形して成る蒸発燃料
吸着部分の斜視図、 第６図は第１図のろ過エレメントの底面図、 第７図は第１図〜第６図に示すろ過エレメントを組み込
んだエアクリーナの略概縦断面図、 第８図は別の実施例に用いるダストろ過用のろ材の平面
図、 第９図は第８図のろ材に蒸発燃料吸着用の活性炭素繊維
ろ紙を張り付けた状態を示す平面図、 第9A図は第９図の矢印Ｂ方向から見た側面図、 第10図は第９図及び第9A図に示すろ材を折り曲げ成形し
て成るろ過部分を用いたろ過エレメントの一部断面斜視
図、 第11図は更に別の実施例を示す要部断面図、 第12図は第11図に類似の図にして、更に別の実施例を示
す図、 第13図は楕円形または長円形のろ過エレメントの一部破
断斜視図、 第14図および第15図はろ過エレメントの他の実施例を示
す底面図、 １……ろ過エレメント、２……内筒、３……外周リン
グ、４……ろ過部分、4a……ダスト用のろ材、4b……ダ
ストろ過部分、5a……活性炭素繊維ろ紙、5b……蒸発燃
料吸着部分。FIG. 1 is a partially cutaway perspective view showing a part of a filtration element according to an embodiment of the present invention by breaking it, FIG. 2 is a plan view of a filter medium for dust filtration, and FIG. 3 shows the filter medium of FIG. FIG. 4 is a perspective view of a dust-filtering portion formed by folding and forming, FIG. 4 is a plan view of activated carbon fiber filter paper, FIG. 5 is a perspective view of an evaporated fuel adsorbing portion formed by folding-forming the filter paper of FIG. 4, and FIG. Is a bottom view of the filter element of FIG. 1, FIG. 7 is a schematic vertical sectional view of an air cleaner incorporating the filter element shown in FIGS. 1 to 6, and FIG. 8 is for dust filtration used in another embodiment. Fig. 9 is a plan view of the filter medium, Fig. 9 is a plan view showing a state in which activated carbon fiber filter paper for adsorbing fuel vapor is attached to the filter medium of Fig. 8, and Fig. 9A is a side view seen from the direction of arrow B in Fig. 9. , Fig. 10 is a filtration using a filtration part formed by bending and shaping the filter medium shown in Figs. 9 and 9A. FIG. 11 is a partial cross-sectional perspective view of the element, FIG. 11 is a cross-sectional view of an essential part showing still another embodiment, FIG. 12 is a view similar to FIG. 11, showing a further embodiment, FIG. Is a partially broken perspective view of an elliptical or oval filter element, and FIGS. 14 and 15 are bottom views showing other embodiments of the filter element, 1 ... filter element, 2 ... inner cylinder, 3 ... … Outer ring, 4 …… Filtration part, 4a …… Dust filter material, 4b …… Dust filtration part, 5a …… Activated carbon fiber filter paper, 5b …… Evaporated fuel adsorption part.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−101224（ＪＰ，Ａ) 実公 昭58−49409（ＪＰ，Ｙ２) 実公 昭58−30571（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-101224 (JP, A) JP 58-49409 (JP, Y2) JP 58-30571 (JP, Y2)
Claims (1)
保持される外周リングと、この外周リングの内方に位置
する内筒と、前記外周リングと前記内筒との間に配設さ
れた波形断面形状のろ材から成るろ過部分とを有し、吸
入空気を前記外周リングの軸方向に前記ろ過部分を通過
させるようになっている軸流型ろ過エレメントであっ
て、前記ろ過部分は前記外周リングから前記内筒の方へ
次第に高く盛り上がる形状を備えており、また、前記ろ
過部分には蒸発燃料を吸着するための活性炭含有材料が
少なくとも前記外周リングに隣接する区域に配設されて
いるとともに、活性炭含有材料が配設された区域以外の
前記ろ過部分の区域はダストろ過を行なうための活性炭
非含有材料で作られていることを特徴とするろ過エレメ
ント。1. An outer peripheral ring held by a case and a cap of an air cleaner, an inner cylinder located inside the outer peripheral ring, and a corrugated cross-sectional shape arranged between the outer peripheral ring and the inner cylinder. And a filtering portion made of a filter medium, wherein the intake air is allowed to pass through the filtering portion in the axial direction of the outer peripheral ring, wherein the filtering portion is the outer ring from the outer ring. It has a shape that gradually rises toward the inner cylinder, and the activated carbon-containing material for adsorbing the evaporated fuel is disposed in at least the area adjacent to the outer peripheral ring in the filtration portion, and the activated carbon-containing material is included. A filtration element, characterized in that the areas of the filtration section other than the area in which the material is arranged are made of an activated carbon-free material for performing dust filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61125013A JPH0722669B2 (en) | 1986-05-30 | 1986-05-30 | Filtration element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61125013A JPH0722669B2 (en) | 1986-05-30 | 1986-05-30 | Filtration element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62282615A JPS62282615A (en) | 1987-12-08 |
| JPH0722669B2 true JPH0722669B2 (en) | 1995-03-15 |
Family
ID=14899698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61125013A Expired - Lifetime JPH0722669B2 (en) | 1986-05-30 | 1986-05-30 | Filtration element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0722669B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100640925B1 (en) * | 2000-07-26 | 2006-11-02 | 엘지전자 주식회사 | Round Air Filter Assembly |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69012880T2 (en) * | 1989-05-26 | 1995-02-02 | Pall Corp | Sorption filter device. |
| US6966940B2 (en) * | 2002-04-04 | 2005-11-22 | Donaldson Company, Inc. | Air filter cartridge |
| DE202006018864U1 (en) * | 2006-12-12 | 2008-04-17 | Mann + Hummel Gmbh | Combined filter element |
| CN114542525A (en) * | 2021-11-26 | 2022-05-27 | 徐庭中 | Long shaft tube high efficiency filtering washing fan and its cheap and easy manufacturing method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830571U (en) * | 1981-08-25 | 1983-02-28 | トヨタ自動車株式会社 | Power steering device piping structure |
| JPS5849409U (en) * | 1981-09-28 | 1983-04-04 | 日立化成工業株式会社 | Molded coil for linear motor |
| JPS61101224A (en) * | 1984-10-25 | 1986-05-20 | Suzuki Motor Co Ltd | Air cleaner for engine |
-
1986
- 1986-05-30 JP JP61125013A patent/JPH0722669B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100640925B1 (en) * | 2000-07-26 | 2006-11-02 | 엘지전자 주식회사 | Round Air Filter Assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62282615A (en) | 1987-12-08 |
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