JP2003024721A - Liquid filter equipped with cyclone - Google Patents

Liquid filter equipped with cyclone

Info

Publication number
JP2003024721A
JP2003024721A JP2001212651A JP2001212651A JP2003024721A JP 2003024721 A JP2003024721 A JP 2003024721A JP 2001212651 A JP2001212651 A JP 2001212651A JP 2001212651 A JP2001212651 A JP 2001212651A JP 2003024721 A JP2003024721 A JP 2003024721A
Authority
JP
Japan
Prior art keywords
casing
filtration element
liquid
cylindrical wall
foreign matter
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
Application number
JP2001212651A
Other languages
Japanese (ja)
Inventor
Ryuji Kuwabara
龍司 桑原
Kunihiro Tomoyasu
邦博 友安
Masatomo Tanaka
政友 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Roki Co Ltd
Original Assignee
Tokyo Roki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tokyo Roki Co Ltd filed Critical Tokyo Roki Co Ltd
Priority to JP2001212651A priority Critical patent/JP2003024721A/en
Publication of JP2003024721A publication Critical patent/JP2003024721A/en
Pending legal-status Critical Current

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  • Filtration Of Liquid (AREA)

Abstract

PROBLEM TO BE SOLVED: To ease filtration element replacement work and lower the cost by improving the service life of the filtration element. SOLUTION: The liquid filter 1 comprises a cylindrical casing 2, a filtration element 3 disposed in the casing 2, swirling blades 6 installed between the outer cylindrical wall 4 of the casing 2 and a circumferential wall 5 disposed concentrically with the wall 4 for generating swirling current, a foreign matter collecting part 7 provided under the filtration element 3, an inlet 8 through which a liquid flows into the casing 2, and an outlet 10 opened in an outlet part 9 of the filtration element 3. An inner cylindrical wall 13 is provided concentrically with the outer cylindrical wall 4 in a lower part body 11 of the casing 2 and the bottom part 14 is closed and the upper face 15 is opened. Between the outer cylindrical wall 4 and the inner cylindrical wall 13, the filtration element 3 is housed and the swirling blades 6 are provided in the circumferential wall 5.

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】この発明は、自動車等の車両
に用いられる燃料フィルタ等のサイクロン付液体フィル
タに関する。 【0002】 【従来の技術】従来、例えば特開2001−20821
に掲載されているように、燃料中の異物を除去する燃料
フィルタ等の液体フィルタは、ケーシング内に装着され
た蛇腹折りした濾過エレメントにより異物を濾過して、
清浄な液体をエンジンへ供給するものが知られている。
しかしながら、実際には以下に説明する技術課題があっ
た。 【0003】 【発明が解決しようとする課題】すなわち、上述した従
来の液体フィルタは、ケーシング内に装着された濾過エ
レメントによって全ての異物を捕捉浄化していたので、
濾過エレメントが早期に目詰りしやすくなり、頻繁に濾
過エレメントを交換しなければならず、交換の手間を要
するだけでなくコストアップとなるという問題点があっ
た。 【0004】この発明は、以上の問題点を解決するもの
であって、濾過エレメントのサービスライフを向上させ
ることにより、濾過エレメント交換の手間を省くととも
にコストダウンを計ることを目的とする。 【0005】 【課題を解決するための手段】前記目的を達成するため
に、この発明は、液体を流入するためのインレット及び
濾過した液体を排出するためのアウトレットを有するケ
ーシングと、該ケーシング内に配置された濾過エレメン
トと、前記濾過エレメントの外側に配置され適宜の穴を
有する周壁とを備えた液体フィルタにおいて、前記周壁
には当該ケーシング内に流入する液体に旋廻流を発生さ
せる旋廻羽根を設けるとともに、前記濾過エレメントの
下部には異物捕捉部を設けたことを特徴とするものであ
る。 【0006】以上の構成によれば、液体中の比較的大き
な異物が遠心力で分離されて、濾過エレメントの下部に
設けられた異物捕捉部で異物を捕捉することができる。 【0007】 【発明の実施の形態】以下、この発明による好適な実施
の形態を図面を用いて詳細に説明する。図1はこの発明
に係わる液体フィルタを示している。 【0008】同図において、液体フィルタ1は、円筒形
のケーシング2と、該ケーシング2内に配置された濾過
エレメント3と、ケーシング2の外筒状壁4と同心状に
配置された周壁5との間に設けられて旋廻流を発生させ
る旋廻羽根6と、濾過エレメント3の下部に設けられる
異物捕捉部7と、ケーシング2内に液体を流入するイン
レット8と、ケーシング2に設けられ濾過エレメント3
の出口部9に開口したアウトレット10とを備えてい
る。 【0009】円筒形のケーシング2は、下部ボディ11
と上部蓋部12とに分かれており、下部ボディ11には
外筒状壁4と同心状に内筒状壁13が設けられ、かつ、
底部14が閉鎖され上面15は開口されている。そし
て、この外筒状壁4と内筒状壁13との間において、濾
過エレメント3が収納されているとともに、周壁5の上
部には周方向に適宜ピッチで旋廻羽根6が設けられてい
る。上部蓋部12は、上部にポンプ等の液体供給孔16
と、インレット8と、アウトレット10とを備え、下部
ボディ11の上面に載置されて濾過エレメント3をシー
ル保持している。 【0010】また、周壁5には、適宜位置に周まわり方
向に長い複数の穴が形成され、印レット8から流入する
液体は、周壁5の外側からこれらの穴を通じて濾過エレ
メント3側に入ることになる。 【0011】濾過エレメント3は、濾紙等の濾過材17
が蛇腹折りされて上下の端版18、19で保持され、上
下のシール材20,21によってケーシング2と上部蓋
部12との間をシールしている。 【0012】図3,4に示すように、濾過エレメント3
には、旋廻羽根6が外筒状壁4と同心状に配置された周
壁5の上部22の周囲に旋廻流を発生させるように取付
られている。 【0013】濾過エレメント3の下部には異物を捕捉す
る異物捕捉部7が設けられている。異物捕捉部7は粗い
不織布等が収納されてなり、不織布等の内部に異物が捕
捉され保持される。 【0014】以上の構成において、ポンプ等の液体供給
装置から送られた液体は、液体供給孔16からインレッ
ト8を経てケーシング2内へ入り、旋廻羽根6によって
旋廻流が与えられつつ周壁5により濾過材17への流れ
を阻止され、旋廻流を維持した状態で流体中の異物に遠
心力が効果的に付与される結果、大きな異物が外側に分
離されつつ次第に下方へ移動し、異物捕捉部7で捕捉さ
れる。また、液体の流れは周壁5の下部の切れたところ
から濾過材17に流入し、残りの異物が濾過されて清浄
となる。 【0015】異物捕捉部7は粗い不織布等が収納されて
なり、不織布等の内部に異物が捕捉されるので、異物が
再び離散することなく、流体は濾過エレメント3の濾過
材17で濾過され、出口部9からアウトレット10を通
過して流出し、機械装置等に液体が供給される。 【0016】 【発明の効果】以上の構成によれば、旋廻羽根で与えら
れた旋廻流によって大きな異物が分離されて異物捕捉部
で捕捉されるので、濾過エレメントの負担を軽くするこ
とができ、もって、濾過エレメントを長持ちさせてサー
ビスライフを向上させることができ、濾過エレメント交
換の手間を省くとともにコストダウンを計ることができ
る。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid filter with a cyclone such as a fuel filter used for a vehicle such as an automobile. 2. Description of the Related Art Conventionally, for example, Japanese Patent Application Laid-Open No. 2001-20821
As described in, a liquid filter such as a fuel filter that removes foreign matter in fuel filters foreign matter with a bellows-folded filter element mounted in a casing,
One that supplies a clean liquid to an engine is known.
However, there are actually technical problems described below. [0003] That is, in the above-mentioned conventional liquid filter, all foreign substances are captured and purified by a filter element mounted in a casing.
The filter element tends to be clogged at an early stage, and the filter element must be replaced frequently, resulting in a problem that not only replacement work is required but also the cost is increased. An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to improve the service life of a filtration element, thereby saving the labor for replacing the filtration element and reducing the cost. [0005] In order to achieve the above object, the present invention provides a casing having an inlet for inflowing a liquid and an outlet for discharging a filtered liquid, and a casing provided in the casing. In a liquid filter including a disposed filtration element and a peripheral wall disposed outside the filtration element and having an appropriate hole, the peripheral wall is provided with a swirling vane that generates a swirling flow in the liquid flowing into the casing. In addition, a foreign matter capturing portion is provided below the filtration element. According to the above configuration, a relatively large foreign substance in the liquid is separated by the centrifugal force, and the foreign substance can be captured by the foreign substance capturing portion provided below the filter element. Preferred embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows a liquid filter according to the present invention. In FIG. 1, a liquid filter 1 includes a cylindrical casing 2, a filtration element 3 disposed in the casing 2, and a peripheral wall 5 disposed concentrically with an outer cylindrical wall 4 of the casing 2. , A swirl vane 6 for generating a swirling flow, a foreign matter catching unit 7 provided at a lower part of the filter element 3, an inlet 8 for flowing a liquid into the casing 2, and a filter element 3 provided in the casing 2.
And an outlet 10 which is open to the outlet 9. The cylindrical casing 2 includes a lower body 11
And an upper lid portion 12, and the lower body 11 is provided with an inner cylindrical wall 13 concentrically with the outer cylindrical wall 4, and
The bottom 14 is closed and the top 15 is open. The filtration element 3 is housed between the outer cylindrical wall 4 and the inner cylindrical wall 13, and the upper surface of the peripheral wall 5 is provided with swirling blades 6 at an appropriate pitch in the circumferential direction. The upper lid 12 has a liquid supply hole 16 such as a pump at the top.
, An inlet 8, and an outlet 10, which are placed on the upper surface of the lower body 11 to seal and hold the filtration element 3. The peripheral wall 5 is formed with a plurality of holes extending in the circumferential direction at appropriate positions, and the liquid flowing from the marking let 8 enters the filter element 3 side from outside the peripheral wall 5 through these holes. become. The filter element 3 is made of a filter material 17 such as filter paper.
Are folded in a bellows and held by upper and lower end plates 18 and 19, and the casing 2 and the upper lid 12 are sealed by upper and lower seal members 20 and 21. As shown in FIGS.
The swirl vanes 6 are mounted so as to generate a swirling flow around the upper part 22 of the peripheral wall 5 which is arranged concentrically with the outer cylindrical wall 4. At the lower part of the filter element 3, a foreign matter capturing portion 7 for capturing foreign matter is provided. The foreign material capturing unit 7 stores a coarse nonwoven fabric or the like, and foreign materials are captured and held inside the nonwoven fabric or the like. In the above configuration, the liquid sent from the liquid supply device such as a pump enters the casing 2 through the liquid supply hole 16 through the inlet 8, and is filtered by the peripheral wall 5 while being given a swirling flow by the swirling blade 6. The centrifugal force is effectively applied to the foreign matter in the fluid while the flow to the material 17 is blocked and the swirling flow is maintained. As a result, the large foreign matter gradually moves downward while being separated outward, and the foreign matter catching unit 7 Is captured by In addition, the flow of the liquid flows into the filter medium 17 from a location where the lower portion of the peripheral wall 5 has been cut, and the remaining foreign matter is filtered and cleaned. The foreign matter capturing portion 7 contains a coarse nonwoven fabric or the like, and foreign matter is captured inside the nonwoven fabric or the like. Therefore, the foreign matter does not separate again, and the fluid is filtered by the filter medium 17 of the filter element 3. The liquid flows out of the outlet 9 through the outlet 10, and is supplied to the machinery and the like. According to the above construction, the large foreign matter is separated by the swirling flow given by the swirling blade and is captured by the foreign matter capturing portion, so that the load on the filtration element can be reduced. Thus, the service life can be improved by extending the service life of the filtration element, and the labor for replacing the filtration element can be saved and the cost can be reduced.

【図面の簡単な説明】 【図1】この発明によるサイクロン付液体フィルタの縦
断面図である。 【図2】図1における周壁、旋廻羽根、濾過エレメント
の平面図である。 【図3】図1における周壁、旋廻羽根、濾過エレメント
の側面図である。 【符号の説明】 2 ケーシング 3 ケーシング 4 外筒状壁 5 周壁 6 旋廻羽根 7 異物捕捉部 8 インレット 9 出口部 10 アウトレット
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of a liquid filter with a cyclone according to the present invention. FIG. 2 is a plan view of a peripheral wall, a swirling blade, and a filtration element in FIG. FIG. 3 is a side view of a peripheral wall, a swirling blade, and a filtration element in FIG. 1; [Description of Signs] 2 Casing 3 Casing 4 Outer cylindrical wall 5 Peripheral wall 6 Rotating blade 7 Foreign matter capturing unit 8 Inlet 9 Outlet unit 10 Outlet

フロントページの続き (72)発明者 田中 政友 神奈川県横浜市都筑区仲町台3丁目12番3 号 東京濾器株式会社内 Fターム(参考) 4D064 AA23 BM04 Continuation of front page    (72) Inventor Masatomo Tanaka             3-12-3 Nakamachidai, Tsuzuki-ku, Yokohama-shi, Kanagawa             No.Tokyo Roki Co., Ltd. F term (reference) 4D064 AA23 BM04

Claims (1)

【特許請求の範囲】 【請求項1】 液体を流入するためのインレット及び濾
過した液体を排出するためのアウトレットを有するケー
シングと、該ケーシング内に配置された濾過エレメント
と、前記濾過エレメントの外側に配置され適宜の穴を有
する周壁とを備えた液体フィルタにおいて、 前記周壁には当該ケーシング内に流入する液体に旋廻流
を発生させる旋廻羽根を設けるとともに、前記濾過エレ
メントの下部には異物捕捉部を設けたことを特徴とする
サイクロン付液体フィルタ。
Claims: 1. A casing having an inlet for inflowing a liquid and an outlet for discharging a filtered liquid, a filtration element disposed in the casing, and a filter disposed outside the filtration element. And a peripheral wall having an appropriate hole disposed therein, wherein the peripheral wall is provided with a swirling vane for generating a swirling flow in the liquid flowing into the casing, and a foreign matter capturing unit is provided below the filtration element. A liquid filter with a cyclone, which is provided.
JP2001212651A 2001-07-12 2001-07-12 Liquid filter equipped with cyclone Pending JP2003024721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001212651A JP2003024721A (en) 2001-07-12 2001-07-12 Liquid filter equipped with cyclone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001212651A JP2003024721A (en) 2001-07-12 2001-07-12 Liquid filter equipped with cyclone

Publications (1)

Publication Number Publication Date
JP2003024721A true JP2003024721A (en) 2003-01-28

Family

ID=19047781

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001212651A Pending JP2003024721A (en) 2001-07-12 2001-07-12 Liquid filter equipped with cyclone

Country Status (1)

Country Link
JP (1) JP2003024721A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04110003A (en) * 1990-08-31 1992-04-10 Morio Fujimoto Method and apparatus for purifying liquid such as cutting oil
JPH05329337A (en) * 1992-05-30 1993-12-14 Nitto Denko Corp Liquid filter
JPH09299716A (en) * 1996-05-15 1997-11-25 Komatsu Ltd Filter device
JPH105512A (en) * 1996-06-20 1998-01-13 Nisshin Koki Kk Filter and filtration system
JPH11507A (en) * 1997-06-13 1999-01-06 Tlv Co Ltd Strainer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04110003A (en) * 1990-08-31 1992-04-10 Morio Fujimoto Method and apparatus for purifying liquid such as cutting oil
JPH05329337A (en) * 1992-05-30 1993-12-14 Nitto Denko Corp Liquid filter
JPH09299716A (en) * 1996-05-15 1997-11-25 Komatsu Ltd Filter device
JPH105512A (en) * 1996-06-20 1998-01-13 Nisshin Koki Kk Filter and filtration system
JPH11507A (en) * 1997-06-13 1999-01-06 Tlv Co Ltd Strainer

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