JP2003320206A - Liquid filter - Google Patents
Liquid filterInfo
- Publication number
- JP2003320206A JP2003320206A JP2002127168A JP2002127168A JP2003320206A JP 2003320206 A JP2003320206 A JP 2003320206A JP 2002127168 A JP2002127168 A JP 2002127168A JP 2002127168 A JP2002127168 A JP 2002127168A JP 2003320206 A JP2003320206 A JP 2003320206A
- Authority
- JP
- Japan
- Prior art keywords
- base
- filter element
- cap
- rotating body
- fluid
- 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
- 239000007788 liquid Substances 0.000 title abstract 2
- 239000012530 fluid Substances 0.000 claims abstract description 52
- 238000001914 filtration Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000004512 die casting Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 description 17
- 239000003921 oil Substances 0.000 description 9
- 210000000078 claw Anatomy 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 101100454434 Biomphalaria glabrata BG04 gene Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/153—Anti-leakage or anti-return valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、エンジン用の潤滑
オイル等を濾過する流体フィルタに関し、特に、キャッ
プ及び交換可能なフィルタエレメントをエンジンに組み
付けられるベースにねじ込む方式の流体フィルタに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid filter for filtering lubricating oil for an engine, and more particularly to a fluid filter in which a cap and a replaceable filter element are screwed into a base assembled to an engine.
【０００２】[0002]
【従来の技術】従来のオイルフィルタカートリッジはエ
ンジンに組み付けられ、エンジンの潤滑オイルを濾過す
る。フィルタエレメントが目詰まりした場合、オイルフ
ィルタカートリッジをエンジンから取り外し、オイルフ
ィルタカートリッジ全体を交換することによって、内部
に収納されたフィルタエレメントを交換する。2. Description of the Related Art A conventional oil filter cartridge is installed in an engine and filters lubricating oil of the engine. If the filter element becomes clogged, the oil filter cartridge is removed from the engine and the entire oil filter cartridge is replaced, thereby replacing the filter element housed inside.
【０００３】近年フィルタエレメントが目詰まりした場
合、フィルタエレメントのみを交換し、他の部品はリサ
イクルできるリサイクルオイルフィルタが使用されてい
る。リサイクルオイルフィルタでは、オイルフィルタカ
ートリッジとは異なり、フィルタエレメントが目詰まり
したときには、例えば樹脂製のキャップをエンジンに取
り付けられるダイカスト製のベースから取り外し、フィ
ルタエレメントのみを交換する。When a filter element is clogged in recent years, a recycled oil filter is used which can replace only the filter element and can recycle other parts. In the recycled oil filter, unlike the oil filter cartridge, when the filter element is clogged, for example, the resin cap is removed from the die-cast base attached to the engine, and only the filter element is replaced.
【０００４】[0004]
【発明が解決しようとする課題】上記リサイクルオイル
フィルタにあっては、キャップとベースとはねじで接合
されている。キャップをベースにねじ込むと、フィルタ
エレメントもキャップと一緒に回転し、ねじ込みが進む
につれて、フィルタエレメントの一端がベース側に接触
する。このときキャップとベースとの間に挟まれるフィ
ルタエレメントがキャップの回転方向に捩れる現象が起
きる。In the above recycled oil filter, the cap and the base are joined by screws. When the cap is screwed into the base, the filter element also rotates together with the cap, and one end of the filter element comes into contact with the base side as the screwing proceeds. At this time, a phenomenon occurs in which the filter element sandwiched between the cap and the base is twisted in the rotation direction of the cap.
【０００５】フィルタエレメントが回転方向に捩れる
と、フィルタエレメントの形状を正常に保つことができ
なくなり、充分な濾過ができなくなるおそれがある。If the filter element is twisted in the rotating direction, the shape of the filter element cannot be maintained normally and there is a possibility that sufficient filtration cannot be performed.
【０００６】そこで、本発明は、エンジン側のベースに
キャップをねじ込むときに、フィルタエレメントが捩れ
るのを防止することができる流体フィルタを提供するこ
とを目的とする。Therefore, an object of the present invention is to provide a fluid filter capable of preventing the filter element from twisting when the cap is screwed into the engine side base.
【０００７】[0007]
【課題を解決するための手段】以下、本発明について説
明する。なお、本発明の理解を容易にするために添付図
面の参照番号を括弧書きにて付記するが、それにより本
発明が図示の形態に限定されるものでない。The present invention will be described below. In addition, in order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are added in parentheses, but the present invention is not limited to the illustrated forms.
【０００８】上記課題を解決するために、本発明者は、
ベースとフィルタエレメントとの間又はフィルタエレメ
ントとキャップとの間に、キャップがベースにねじ込ま
れるときにキャップ及びフィルタエレメントと一緒に回
転する回転体を設けた。In order to solve the above problems, the present inventor has
A rotating body is provided between the base and the filter element or between the filter element and the cap, which rotates together with the cap and the filter element when the cap is screwed into the base.
【０００９】すなわち本発明は、ベース（１）と、前記
ベース（１）にねじ込まれるキャップ（２）と、前記ベ
ース（１）及び前記キャップ（２）で構成されるハウジ
ング（４）内に収容される交換可能なフィルタエレメン
ト（３）と、前記ベース（１）と前記フィルタエレメン
ト（３）との間に配置され、前記キャップ（２）が前記
ベース（１）にねじ込まれるときに、前記キャップ
（２）及び前記フィルタエレメント（３）と一緒に回転
する回転体（１５）とを備える流体フィルタとを備える
流体フィルタにより、上述した課題を解決する。That is, according to the present invention, the base (1), the cap (2) screwed into the base (1), and the housing (4) composed of the base (1) and the cap (2) are contained. A replaceable filter element (3) disposed between the base (1) and the filter element (3), the cap (2) being screwed into the base (1). The above-mentioned problems are solved by a fluid filter including (2) and a fluid filter including the rotating element (15) that rotates together with the filter element (3).
【００１０】この発明によれば、キャップがベースにね
じ込まれるときに、回転体がキャップ及びフィルタエレ
メントと一緒に回転する。フィルタエレメントがベース
に直接接触することがないので、キャップとベースとの
間でフィルタエレメントが捩れるのを防止できる。According to the present invention, the rotating body rotates together with the cap and the filter element when the cap is screwed into the base. Since the filter element does not come into direct contact with the base, twisting of the filter element between the cap and the base can be prevented.
【００１１】また、互いに接触する前記フィルタエレメ
ント（３）と前記回転体（１５）との間の摩擦係数を、
互いに接触する前記回転体（１５）と前記ベース（１）
との間の摩擦係数よりも大きくすることで、前記回転体
（１５）をフィルタエレメント（３）と一緒に回転運動
させ、且つベース（１）に対してすべり運動させること
ができる。Further, the coefficient of friction between the filter element (3) and the rotating body (15) contacting each other is
The rotating body (15) and the base (1) in contact with each other
By making the friction coefficient larger than the friction coefficient between the filter element (3) and the filter element (3), the rotating body (15) can rotate together with the filter element (3) and can also slide with respect to the base (1).
【００１２】前記回転体（１５）が樹脂製であり、前記
ベース（１）がダイカストにより製造された金属製であ
ると、前記フィルタエレメント（３）と前記回転体（１
５）との間の摩擦係数を、前記回転体（１５）と前記ベ
ース（１）との間の摩擦係数よりも大きくしやすくな
る。When the rotating body (15) is made of resin and the base (1) is made of metal produced by die casting, the filter element (3) and the rotating body (1)
It becomes easy to make the coefficient of friction with 5) larger than the coefficient of friction between the rotating body (15) and the base (1).
【００１３】本発明の好ましい一態様は、前記ベース
（１）はエンジンに組み込まれ、前記フィルタエレメン
ト（３）は、筒状に形成されると共に、軸線方向の一対
の端部（３ａ，３ｂ）及び該一対の端部（３ａ，３ｂ）
間の濾過領域（３ｃ）を有し、筒状に形成される前記フ
ィルタエレメント（３）の内側には、軸線方向に延びる
筒状の内筒（１２）が設けられ、前記回転体（１５）
は、前記フィルタエレメント（３）の一方の端部（３
ｂ）と前記ベース（１）との間に配置されることを特徴
とする。In a preferred aspect of the present invention, the base (1) is incorporated in an engine, the filter element (3) is formed in a tubular shape, and a pair of axial end portions (3a, 3b) are provided. And the pair of ends (3a, 3b)
An inner cylinder (12) having a cylindrical shape extending in the axial direction is provided inside the cylindrical filter element (3) having a filtering region (3c) between the rotating body (15).
Is one end (3) of the filter element (3).
It is characterized in that it is arranged between b) and the base (1).
【００１４】本発明の好ましい一態様は、前記ベース
（１）には、前記ハウジング（４）内の流体を排出する
ドレン通路（１ｄ）が形成され、前記回転体（１５）に
は、前記ドレン通路（１ｄ）を塞ぐことができる遮蔽部
（１５ｂ）が形成され、前記キャップ（２）が前記ベー
ス（１）にねじ込まれるときに、前記遮蔽部（１５ｂ）
が前記ドレン通路（１ｄ）を塞ぐのを許容する一方、前
記キャップ（２）が前記ベース（１）から緩められると
きに、前記遮蔽部（１５ｂ）を前記ドレン通路（１ｄ）
から離間させる遮蔽部作動手段（２０）が設けられるこ
とを特徴とする。In a preferred aspect of the present invention, the base (1) is formed with a drain passage (1d) for discharging the fluid in the housing (4), and the rotating body (15) is provided with the drain. A shielding part (15b) capable of blocking the passage (1d) is formed, and when the cap (2) is screwed into the base (1), the shielding part (15b).
Allow the drain passage (1d) to be closed, while the cap (2) is loosened from the base (1), the shielding portion (15b) is closed by the drain passage (1d).
It is characterized in that a shield actuating means (20) for separating from is provided.
【００１５】この発明によれば、キャップをベースにね
じ込むときに回転体に形成された遮蔽部がドレン通路を
防ぎ、キャップをベースから緩めるときに回転体に形成
された遮蔽部がドレン通路を開ける。このため、回転体
に流体フィルタ内の流体を排出するドレン機能も持たせ
ることができる。According to the present invention, the shield formed on the rotating body prevents the drain passage when the cap is screwed into the base, and the shield formed on the rotating body opens the drain passage when the cap is loosened from the base. . Therefore, the rotating body can also have a drain function for discharging the fluid in the fluid filter.
【００１６】前記遮蔽部作動手段は、前記ベース（１）
と前記回転体（１５）との間に設けられたドレン用ばね
（２０）からなってもよい。The shielding portion actuating means includes the base (1).
And a drain spring (20) provided between the rotating body (15) and the rotating body (15).
【００１７】さらに本発明の好ましい一態様は、前記回
転体（１５）には、濾過された流体をエンジンに導く流
体通路（２１）が形成され、該流体通路（２１）内に
は、弁座（２３）、弁座（２３）に当接可能な弁体（２
４）、及び弁体（２４）を弁座（２３）に付勢する付勢
手段（２５）とを有する弁機構（２６）が設けられ、該
弁機構（２６）は、エンジンの運転時には前記流体通路
（２１）を開ける一方、エンジンの停止時には前記流体
通路（２１）を閉じることを特徴とする。Further, in a preferred aspect of the present invention, a fluid passage (21) for guiding the filtered fluid to the engine is formed in the rotating body (15), and a valve seat is provided in the fluid passage (21). (23), a valve element (2 that can contact the valve seat (23)
4), and a valve mechanism (26) having a biasing means (25) for biasing the valve body (24) to the valve seat (23). The fluid passage (21) is opened, while the fluid passage (21) is closed when the engine is stopped.
【００１８】この発明によれば、エンジンの運転時には
エンジンに濾過された流体をエンジンに導くことがで
き、エンジンの停止時には流体フィルタ内の流体がエン
ジンに導かれるのを防止することができる。このため、
エンジンが停止した後、エンジンが始動するときに、ド
ライスタート、すなわち流体が流体フィルタ内に満たさ
れない状態でエンジンが始動することを防止することが
できる。また弁機構を回転体に設けることで、弁機構の
メンテナンスや交換も容易になる。According to the present invention, the fluid filtered by the engine can be guided to the engine when the engine is operating, and the fluid in the fluid filter can be prevented from being guided to the engine when the engine is stopped. For this reason,
After the engine is stopped, when the engine is started, it is possible to prevent a dry start, that is, the engine is started without fluid being filled in the fluid filter. Further, by providing the valve mechanism on the rotating body, maintenance and replacement of the valve mechanism are facilitated.
【００１９】前記付勢手段は、前記回転体（１５）と前
記弁体（２４）との間に設けられる弁機構用ばね（２
５）からなってもよい。The urging means is a valve mechanism spring (2) provided between the rotating body (15) and the valve body (24).
It may consist of 5).
【００２０】[0020]
【発明の実施の形態】図１は、本発明の流体フィルタの
一実施形態を示す。この流体フィルタは、例えばエンジ
ンに組みつけられ、エンジンを潤滑する潤滑オイルの循
環回路の一部を構成する。そしてハウジング４内のフィ
ルタエレメント３で潤滑オイル内の不純物を除去する。DETAILED DESCRIPTION OF THE INVENTION FIG. 1 shows an embodiment of the fluid filter of the present invention. This fluid filter is, for example, mounted on an engine and constitutes a part of a circulation circuit of lubricating oil that lubricates the engine. Then, the filter element 3 in the housing 4 removes impurities in the lubricating oil.
【００２１】流体フィルタのハウジング４は、エンジン
ブロックへの取付け面１ａを有するベース１と、ベース
１にねじ込まれるキャップ２とで構成される。ベースは
金属製でダイカストにより製造される。ベース１には不
純物を含む潤滑オイルをエンジンからハウジング４内に
流入させる流入通路１ｂが形成されると共に、不純物を
濾過した後の清浄な潤滑オイルをハウジング４からエン
ジンへ流出させる流出通路１ｃが形成される。またベー
ス１には、キャップ２をベース１から取り外したとき
に、ハウジング４内部の潤滑オイルをドレンパンに排出
するドレン通路１ｄ・・・が形成される。またベース１の
上端側には円筒状の筒部１ｅが形成され、筒部１ｅの内
周面にはねじ６が形成されている。The housing 4 of the fluid filter comprises a base 1 having a mounting surface 1a for mounting on the engine block, and a cap 2 screwed onto the base 1. The base is made of metal and is manufactured by die casting. The base 1 is formed with an inflow passage 1b for allowing lubricating oil containing impurities to flow into the housing 4 from the engine, and an outflow passage 1c for flowing clean lubricating oil after filtering impurities from the housing 4 to the engine. To be done. Further, the base 1 is provided with drain passages 1d ... Which drain the lubricating oil inside the housing 4 to the drain pan when the cap 2 is removed from the base 1. A cylindrical tubular portion 1e is formed on the upper end side of the base 1, and a screw 6 is formed on the inner peripheral surface of the tubular portion 1e.
【００２２】キャップ２は有底円筒状、すなわち軸線方
向の一端が開口されると共に他端が塞がれる筒状に形成
される。キャップ２は樹脂を素材とする成型品である。
キャップ２の開口側の外周面にはベース１の筒部１ｅの
ねじと螺合するねじ２ａが形成される。キャップ２の外
周には、ハウジング４内部をシールできるように、キャ
ップ２と筒部１ｅとの間に挟まれるＯリング等のシール
部材７が巻かれる。またキャップ２をベース１にねじ込
むときに、キャップ２を一定量ねじ込めるように、キャ
ップ２の外周には筒部１ｅの上端部に当接するフランジ
２ｂが形成される。The cap 2 is formed in a bottomed cylindrical shape, that is, a cylindrical shape in which one end in the axial direction is opened and the other end is closed. The cap 2 is a molded product made of resin.
On the outer peripheral surface of the cap 2 on the opening side, a screw 2a that is screwed with the screw of the cylindrical portion 1e of the base 1 is formed. A seal member 7 such as an O-ring sandwiched between the cap 2 and the cylindrical portion 1e is wound around the outer periphery of the cap 2 so as to seal the inside of the housing 4. Further, when the cap 2 is screwed into the base 1, a flange 2b is formed on the outer periphery of the cap 2 so as to abut the upper end of the tubular portion 1e so that the cap 2 can be screwed in a certain amount.
【００２３】ハウジング内４には交換可能なフィルタエ
レメント３が収納される。フィルタエレメント３の外側
が流入通路１ｂに接続され、フィルタエレメント３の内
側が流出通路１ｃに接続される。ハウジング４内部は、
フィルタエレメント３の外側のダーティサイドとフィル
タエレメント３の内側のクリーンサイドとに区画され
る。A replaceable filter element 3 is housed in the housing 4. The outside of the filter element 3 is connected to the inflow passage 1b, and the inside of the filter element 3 is connected to the outflow passage 1c. Inside the housing 4,
It is divided into a dirty side outside the filter element 3 and a clean side inside the filter element 3.
【００２４】フィルタエレメント３は所定の濾材を周方
向に沿って多数の襞を有するようにジグザグに折り曲げ
て筒状に形成される。フィルタエレメント３は軸線方向
の一対の端部３ａ，３ｂ及び端部３ａ，３ｂ間の濾過領
域３ｃを有する。一対の端部３ａ，３ｂは、端部３ａ，
３ｂ側からフィルタエレメント３の内周側に潤滑オイル
が迂回しないようにホットメルト接着されたシール材
９，９と、シール材に貼られたリング状のシールプレー
ト１０，１０とを有する。The filter element 3 is formed into a tubular shape by bending a predetermined filter material in a zigzag manner so as to have a large number of folds along the circumferential direction. The filter element 3 has a pair of axial end portions 3a, 3b and a filtering region 3c between the end portions 3a, 3b. The pair of end portions 3a, 3b are
It has seal materials 9 and 9 that are hot-melt bonded so that the lubricating oil does not circulate from the 3b side to the inner peripheral side of the filter element 3, and ring-shaped seal plates 10 and 10 attached to the seal material.
【００２５】フィルタエレメント３の内側には、その軸
線方向の略全長にわたって、軸線方向に延びる筒状の内
筒１２が設けられる。内筒１２はフィルタエレメント３
を内側から支持し、潤滑オイルがフィルタエレメント３
の外側から内側へ向かって通過する際にフィルタエレメ
ント３が変形するのを防止する。内筒１２は樹脂を素材
とする成型品であり、その両端に配置された一対の筒部
１２ａ，１２ｂと、これら筒部１２ａ，１２ｂを結ぶよ
うに軸線方向に延びる複数本の縦リブと、筒部１２ａ，
１２ｂの間にほぼ均等間隔で配置された複数のリング状
の横リブとを有している。上側の筒部１２ａがキャップ
２に設けられた爪部１４に係合することで内筒１２がキ
ャップ２に組み付けられる。キャップ２をベース１にね
じ込んだときに下側の筒部１２ｂは後述する回転体１５
の外側に嵌め込まれる。フィルタエレメント３はその軸
線方向の両端にて筒部１２ａ，１２ｂの外周に嵌合して
内筒１２と同軸に保持されている。なお、この実施例で
は内筒１２は、キャップ２側に組み付けられているが、
ベース１側に組みつけられていても良い。Inside the filter element 3, a cylindrical inner cylinder 12 extending in the axial direction is provided over substantially the entire length in the axial direction. The inner cylinder 12 is the filter element 3
The inside of the filter element 3 and the lubricating oil
The filter element 3 is prevented from being deformed when passing from the outside to the inside. The inner cylinder 12 is a molded product made of resin, and has a pair of cylinder portions 12a and 12b arranged at both ends thereof, and a plurality of vertical ribs extending in the axial direction so as to connect the cylinder portions 12a and 12b, Cylindrical portion 12a,
12b has a plurality of ring-shaped lateral ribs arranged at substantially equal intervals. The inner cylinder 12 is assembled to the cap 2 by engaging the upper cylinder portion 12 a with the claw portion 14 provided on the cap 2. When the cap 2 is screwed into the base 1, the lower cylinder portion 12b is a rotating body 15 described later.
Is fitted on the outside of. The filter element 3 is fitted to the outer circumferences of the cylindrical portions 12a and 12b at both ends in the axial direction and is held coaxially with the inner cylinder 12. In this embodiment, the inner cylinder 12 is attached to the cap 2 side,
It may be assembled on the base 1 side.
【００２６】内筒１２の上部には、ハウジング４内の潤
滑オイルの圧力が所定以上になったときに作動する安全
弁１９が設けられる。キャップ２の内底部（図１の上端
側）には、複数の突起２ｃ・・・が設けられ、これらの先
端には安全弁１９を構成する樹脂製の弁座部材１８が溶
着により接合される。この弁座部材１８は、円盤状に形
成されると共に中央部に開口が形成される本体部１８ａ
と、本体部１８ａから下方に延びる複数の爪部１４・・・
とから構成される。爪部１４・・・は内筒１２を嵌め込む
ときに一端内側に撓み、内筒１２を嵌め込み終わると外
側に復元する。これにより内筒１２がキャップ２に組み
付けられる。弁座部材１８の内側には弁体１７が設けら
れる。弁体１７はコイルばね１６によって弁座部材１８
に付勢される。内筒１２にはコイルばね１６を支持する
ための支持プレート１２ｃが設けられ、この支持プレー
ト１２ｃにも開口が形成される。At the upper part of the inner cylinder 12, there is provided a safety valve 19 which operates when the pressure of the lubricating oil in the housing 4 exceeds a predetermined level. A plurality of protrusions 2c ... Are provided on the inner bottom portion (upper end side in FIG. 1) of the cap 2, and a resin-made valve seat member 18 constituting a safety valve 19 is welded to the tips thereof. The valve seat member 18 is formed in a disk shape and has a main body portion 18a having an opening formed in a central portion.
And a plurality of claw portions 14 extending downward from the main body portion 18a.
Composed of and. The claws 14 ... Bend inward at one end when the inner cylinder 12 is fitted, and restore to the outside when the inner cylinder 12 is completely fitted. As a result, the inner cylinder 12 is assembled to the cap 2. The valve body 17 is provided inside the valve seat member 18. The valve body 17 is made up of a coil spring 16 and a valve seat member 18
Be urged by. A support plate 12c for supporting the coil spring 16 is provided on the inner cylinder 12, and an opening is also formed in the support plate 12c.
【００２７】例えばフィルタエレメント３が目詰まり
し、ハウジング４内の潤滑オイルの圧力が所定圧以上に
なると、コイルばね１６が縮み、弁体１７が弁座部材１
８から離間する。そしてハウジング４内のオイルがフィ
ルタエレメント３を通過することなく、フィルタエレメ
ント３を迂回して、内筒１２の内側、すなわちクリーン
サイド側に流れる。For example, when the filter element 3 is clogged and the pressure of the lubricating oil in the housing 4 exceeds a predetermined pressure, the coil spring 16 contracts and the valve element 17 causes the valve seat member 1 to move.
Separated from 8. Then, the oil in the housing 4 bypasses the filter element 3 and bypasses the filter element 3 and flows to the inside of the inner cylinder 12, that is, the clean side.
【００２８】フィルタエレメント３の端部３ｂとベース
１との間には、キャップ２がベース１にねじ込まれると
きに、キャップ２及びフィルタエレメント３と一緒に回
転する樹脂製の回転体１５が設けられる。回転体１５
は、ベース１に形成された流出通路１ｃに嵌め込まれる
筒状の回転体本体１５ａと、回転体本体１５ａの外周に
鍔状に張り出す遮蔽部１５ｂとを有する。Between the end 3b of the filter element 3 and the base 1, there is provided a resin rotor 15 which rotates together with the cap 2 and the filter element 3 when the cap 2 is screwed into the base 1. . Rotating body 15
Has a cylindrical rotating body main body 15a fitted into the outflow passage 1c formed in the base 1, and a shield portion 15b projecting like a collar on the outer periphery of the rotating body main body 15a.
【００２９】互いに接触するフィルタエレメント３（こ
の例ではフィルタエレメント３のシールプレート１０）
と回転体１５との間の摩擦係数は、互いに接触する回転
体１５とベース１との間の摩擦係数よりも大きい。この
ため、フィルタエレメント３、回転体１５及びベース１
の三者が接触した状態で、フィルタエレメント３をベー
ス１に対して回転させると、回転体１５はフィルタエレ
メント３と一緒に回転運動し、且つベース１に対してす
べり運動する。The filter elements 3 contacting each other (in this example, the seal plate 10 of the filter element 3)
The coefficient of friction between the rotor 15 and the rotating body 15 is larger than the coefficient of friction between the rotating body 15 and the base 1 that are in contact with each other. Therefore, the filter element 3, the rotating body 15, and the base 1
When the filter element 3 is rotated with respect to the base 1 while the three members are in contact with each other, the rotating body 15 rotates together with the filter element 3 and also slides with respect to the base 1.
【００３０】回転体１５の遮蔽部１５ｂにより、ドレン
通路１ｄが塞がれる。ドレン通路１ｄ内においてベース
１と回転体１５との間には遮蔽部作動手段としてのドレ
ン用ばね２０が設けられる。ドレン用ばね２０はコイル
ばねからなり、キャップ２がベース１にねじ込まれると
きに、フィルタエレメント３の下降に伴い収縮し、遮蔽
部１５ｂがドレン通路１ｄを塞ぐのを許容する一方、キ
ャップ２がベース１から緩められるときに、フィルタエ
レメント３の上昇に伴い伸長し、遮蔽部１５ｂをドレン
通路１ｄから離間させる。The drain passage 1d is closed by the shielding portion 15b of the rotating body 15. A drain spring 20 is provided between the base 1 and the rotating body 15 in the drain passage 1d as a shield operating means. The drain spring 20 is composed of a coil spring, and when the cap 2 is screwed into the base 1, the drain spring 20 contracts as the filter element 3 descends, allowing the shielding portion 15b to block the drain passage 1d, while the cap 2 is closed. When the filter element 3 is loosened from 1, the filter element 3 extends as the filter element 3 rises, and separates the shield portion 15b from the drain passage 1d.
【００３１】回転体本体１５ａの内周には濾過された潤
滑オイルが通過できるように流体通路２１が形成され
る。該流体通路２１には、弁座２３、弁座２３に当接可
能な弁体２４、及び弁体２４を弁座２３に付勢する付勢
手段としての弁機構用ばね２５とを有する弁機構２６
（アンチドレンバックバルブ）が設けられる。該弁機構
２６は、エンジンの運転時には収縮して流体通路２１を
開ける一方、エンジンの停止時には伸長して流体通路２
１を閉じる。弁機構用ばね２５は回転体本体１５ａの下
端に設けられた支持部材１５ｃに支持されている。A fluid passage 21 is formed in the inner circumference of the rotary body 15a so that the filtered lubricating oil can pass therethrough. The fluid passage 21 has a valve seat 23, a valve body 24 that can abut against the valve seat 23, and a valve mechanism spring 25 as a biasing means that biases the valve body 24 toward the valve seat 23. 26
(Anti-drain back valve) is provided. The valve mechanism 26 contracts to open the fluid passage 21 when the engine is operating, and expands to open the fluid passage 2 when the engine is stopped.
Close 1 The valve mechanism spring 25 is supported by a support member 15c provided at the lower end of the rotary body 15a.
【００３２】なおクリーンサイド側の上記弁機構２６以
外に、流体フィルタの外側のダーティサイド側にも、エ
ンジンの運転時には流体通路を開ける一方、エンジンの
停止時には流体通路を閉じる弁機構（図示せず）が設け
られている。In addition to the valve mechanism 26 on the clean side, a valve mechanism (not shown) that opens a fluid passage on the dirty side outside the fluid filter when the engine is running but closes the fluid passage when the engine is stopped. ) Is provided.
【００３３】流体フィルタの組み付け方法について説明
する。まずキャップ２内に交換可能なフィルタエレメン
ト３を挿入する。キャップ２には内筒１２が組み付けら
れており、フィルタエレメント３は内筒の外側に挿入さ
れる。ベース１にはあらかじめ回転体１５が組み込まれ
る。次にフィルタエレメント３が挿入されたキャップ２
をベース１にねじ込む。ねじ込みの当初は上下方向の力
が加わらないため、ベースに回転体１５が置かれたまま
になる。ねじ込みが進み、ある程度の上下方向の力が加
わると、キャップ２及びフィルタエレメント３と一緒に
回転体１５も回転し、回転体１５がベース１に対してす
べる。回転体１５を介在させることで、フィルタエレメ
ント３がベースに直接接触することがなくなり、フィル
タエレメント３が捩れるのを防止することができる。A method of assembling the fluid filter will be described. First, the replaceable filter element 3 is inserted into the cap 2. An inner cylinder 12 is assembled to the cap 2, and the filter element 3 is inserted outside the inner cylinder. The rotating body 15 is incorporated in the base 1 in advance. Next, the cap 2 in which the filter element 3 is inserted
Screw into base 1. Since the vertical force is not applied at the beginning of screwing, the rotating body 15 remains on the base. When the screwing progresses and a certain amount of vertical force is applied, the rotating body 15 also rotates together with the cap 2 and the filter element 3, and the rotating body 15 slides with respect to the base 1. By interposing the rotating body 15, it is possible to prevent the filter element 3 from directly contacting the base and prevent the filter element 3 from being twisted.
【００３４】図２は、ドレン用ばね及び弁機構用ばねの
作動状態を示す。図中（Ａ）及び図中（Ｂ）はキャップ
２がベース１にねじ込まれた状態を示し、図中（Ｃ）は
キャップ２がベース１から取り外された状態を示す。キ
ャップ２がベース１にねじ込まれると、図中（Ａ）及び
（Ｂ）に示すように、回転体１５がフィルタエレメント
３によって押し下げられ、ドレン用ばね２０が収縮す
る。このとき回転体１５の遮蔽部１５ｂはドレン通路１
ｄを塞ぎ、流体フィルタ内部の潤滑オイルがドレン通路
１ｄに排出されるのを防止する。FIG. 2 shows the operating states of the drain spring and the valve mechanism spring. In the drawings, (A) and (B) show a state where the cap 2 is screwed into the base 1, and (C) shows a state where the cap 2 is removed from the base 1. When the cap 2 is screwed into the base 1, the rotating body 15 is pushed down by the filter element 3 and the drain spring 20 contracts, as shown in FIGS. At this time, the shield portion 15b of the rotating body 15 has the drain passage 1
The lubricating oil in the fluid filter is prevented from being discharged to the drain passage 1d by closing d.
【００３５】一方キャップ２をベース１から緩めると、
図中（Ｃ）に示すように、フィルタエレメント３が上昇
するのに伴ってドレン用ばね２０が回転体１５を上昇さ
せる。このときドレン通路１ｄが開けられ、流体フィル
タ内部に溜められた潤滑オイルがドレンパンへ排出され
る。On the other hand, when the cap 2 is loosened from the base 1,
As shown in (C) in the figure, the drain spring 20 raises the rotating body 15 as the filter element 3 rises. At this time, the drain passage 1d is opened, and the lubricating oil accumulated inside the fluid filter is discharged to the drain pan.
【００３６】図２中（Ａ）に示すように、エンジンの停
止時には弁機構用ばね２５が弁体２４を弁座２３に付勢
するので、流体通路が閉じられる。これにより、エンジ
ンの停止時に流体フィルタ内部の潤滑オイルがエンジン
側に抜けてしまうのを防止できる。このためエンジンが
停止した後再始動するときに、ドライスタートで始動す
るのを防止することができる。As shown in FIG. 2A, when the engine is stopped, the valve mechanism spring 25 urges the valve element 24 toward the valve seat 23, so that the fluid passage is closed. This can prevent the lubricating oil inside the fluid filter from escaping to the engine side when the engine is stopped. Therefore, when the engine is stopped and then restarted, it is possible to prevent the engine from being started by a dry start.
【００３７】一方図２中（Ｂ）に示すようにエンジンの
運転時には、循環する潤滑オイルの流れによって、弁体
２４が押し下げられ、流体通路２１が開になる。これに
よりエンジン側に濾過された潤滑オイルを供給すること
ができる。On the other hand, as shown in FIG. 2B, when the engine is in operation, the flow of lubricating oil circulates to push down the valve element 24 and open the fluid passage 21. This allows the filtered lubricating oil to be supplied to the engine side.
【００３８】回転体１５にドレン通路１ｄをシールする
機能や、回転体１５の内部にエンジンがドライスタート
になるのを防止する弁機構２６を設けることで、流体フ
ィルタの構造を簡略化したり、弁機構２６の交換やメン
テナンスを容易にしたりすることができる。The function of sealing the drain passage 1d in the rotating body 15 and the valve mechanism 26 for preventing the engine from a dry start inside the rotating body 15 simplify the structure of the fluid filter or The replacement and maintenance of the mechanism 26 can be facilitated.
【００３９】なお、本発明は以上の実施形態に限定され
ず、種々の形態にて実施してよい。例えば、回転体１５
はフィルタエレメント３とベース１との間ではなく、フ
ィルタエレメント３とキャップ２との間に設けられても
よい。この場合、キャップ２をベース１にねじ込むとき
に、キャップ２のみが回転し、キャップ２に対してすべ
り運動する回転体１５及びフィルタエレメント３は回転
しない。このように構成しても、フィルタエレメント３
が捩れるのを防止できる。The present invention is not limited to the above embodiment and may be implemented in various forms. For example, the rotating body 15
May be provided between the filter element 3 and the cap 2 instead of between the filter element 3 and the base 1. In this case, when the cap 2 is screwed into the base 1, only the cap 2 rotates, and the rotating body 15 and the filter element 3 that slide with respect to the cap 2 do not rotate. Even with this configuration, the filter element 3
Can be prevented from twisting.
【００４０】また、回転体１５には遮蔽部１５ｂや弁機
構２６を設けなくてもよい。さらにフィルタエレメント
３はジグザクに折られた筒形状に限られず、種々の形状
に構成することができる。Further, the rotating body 15 may not be provided with the shielding portion 15b or the valve mechanism 26. Further, the filter element 3 is not limited to the zigzag-folded tubular shape, but can be configured in various shapes.
【００４１】[0041]
【発明の効果】以上説明したように、本発明によれば、
ベースとフィルタエレメントとの間に、キャップがベー
スにねじ込まれるときにはキャップ及びフィルタエレメ
ントと一緒に回転する回転体を設けたので、キャップが
ベースにねじ込まれるときに、キャップとベースとの間
でフィルタエレメントが捩れるのを防止できる。As described above, according to the present invention,
Since the rotating body that rotates together with the cap and the filter element when the cap is screwed into the base is provided between the base and the filter element, when the cap is screwed into the base, the filter element is provided between the cap and the base. Can be prevented from twisting.
【図１】本発明の一実施形態における流体フィルタを示
す断面図。FIG. 1 is a sectional view showing a fluid filter according to an embodiment of the present invention.
【図２】ドレン用ばね及び弁機構用ばねの作動状態を示
す断面図（図中（Ａ）はエンジン停止時を示し、図中
（Ｂ）は通常エンジン運転時を示し、図中（Ｃ）はオイ
ルドレン時を示す）。FIG. 2 is a cross-sectional view showing an operating state of a drain spring and a valve mechanism spring ((A) in the figure shows when the engine is stopped, (B) shows the normal engine operation, and (C) in the figure). Indicates the time of oil drain).
１・・・ベース １ｄ・・・ドレン通路 ２・・・キャップ ３・・・フィルタエレメント ３ａ，３ｂ・・・端部 ３ｃ・・・濾過領域 ４・・・ハウジング １２・・・内筒 １５・・・回転体 １５ａ・・・回転体本体 １５ｂ・・・遮蔽部 ２０・・・ドレン用ばね（遮蔽部作動手段） ２１・・・流体通路 ２３・・・弁座 ２４・・・弁体 ２５・・・弁機構用ばね（付勢手段） ２６・・・弁機構 1 ... base 1d ... Drain passage 2 ... Cap 3 ... Filter element 3a, 3b ... ends 3c ... filtration area 4 ... Housing 12 ... Inner cylinder 15 ... Rotating body 15a ... Rotating body 15b ... shielding part 20 ... Drain spring (shielding part operating means) 21 ... Fluid passage 23 ... Seat 24 ... Valve 25 ... Valve mechanism spring (biasing means) 26 ... Valve mechanism
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松浦 和也 静岡県浜北市中瀬7800番地 東洋▲ろ▼機 製造株式会社内 (72)発明者 杉本 岳雄 静岡県浜北市中瀬7800番地 東洋▲ろ▼機 製造株式会社内 Ｆターム(参考） 3G015 BG03 BG04 BG10 BG12 BG16 CA01 DA06 4D064 AA23 BM12 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Kazuya Matsuura 7800 Nakase, Hamakita City, Shizuoka Prefecture Manufacturing Co., Ltd. (72) Inventor Takeo Sugimoto 7800 Nakase, Hamakita City, Shizuoka Prefecture Manufacturing Co., Ltd. F-term (reference) 3G015 BG03 BG04 BG10 BG12 BG16 CA01 DA06 4D064 AA23 BM12
Claims (8)
に収容される交換可能なフィルタエレメントと、 前記ベースと前記フィルタエレメントとの間に配置さ
れ、前記キャップが前記ベースにねじ込まれるときに、
前記キャップ及び前記フィルタエレメントと一緒に回転
する回転体とを備える流体フィルタ。1. A base, a cap screwed into the base, a replaceable filter element housed in a housing composed of the base and the cap, and arranged between the base and the filter element. , When the cap is screwed into the base,
A fluid filter comprising: the cap and a rotating body that rotates together with the filter element.
と前記回転体との間の摩擦係数は、互いに接触する前記
回転体と前記ベースとの間の摩擦係数よりも大きいこと
を特徴とする請求項１に記載の流体フィルタ。2. The coefficient of friction between the filter element and the rotating body contacting each other is larger than the coefficient of friction between the rotating body and the base contacting each other. The described fluid filter.
はダイカストにより製造された金属製であることを特徴
とする請求項２に記載の流体フィルタ。3. The fluid filter according to claim 2, wherein the rotating body is made of resin, and the base is made of metal produced by die casting.
軸線方向の一対の端部及び該一対の端部間の濾過領域を
有し、 筒状に形成される前記フィルタエレメントの内側には、
軸線方向に延びる筒状の内筒が設けられ、 前記回転体は、前記フィルタエレメントの一方の前記端
部と前記ベースとの間に配置されることを特徴とする請
求項１ないし３いずれかに記載の流体フィルタ。4. The base is incorporated in an engine, the filter element is formed in a tubular shape, and
Having a pair of end portions in the axial direction and a filtration region between the pair of end portions, inside the cylindrical filter element,
The cylindrical inner cylinder extending in the axial direction is provided, and the rotating body is arranged between the one end of the filter element and the base. The described fluid filter.
体を排出するドレン通路が形成され、 前記回転体には、前記ドレン通路を塞ぐことができる遮
蔽部が形成され、 前記キャップが前記ベースにねじ込まれるときに、前記
遮蔽部が前記ドレン通路を塞ぐのを許容する一方、前記
キャップが前記ベースから緩められるときに、前記遮蔽
部を前記ドレン通路から離間させる遮蔽部作動手段が設
けられることを特徴とする請求項１ないし４いずれかに
記載の流体フィルタ。5. A drain passage for discharging fluid in the housing is formed in the base, a shield portion for closing the drain passage is formed in the rotating body, and the cap is provided on the base. A shield actuating means is provided which allows the shield to close the drain passage when screwed in, while separating the shield from the drain passage when the cap is loosened from the base. The fluid filter according to any one of claims 1 to 4, which is characterized.
記回転体との間に設けられたドレン用ばねからなること
を特徴とする請求項５に記載の流体フィルタ。6. The fluid filter according to claim 5, wherein the shielding portion actuating means comprises a drain spring provided between the base and the rotating body.
ジンに導く流体通路が形成され、 該流体通路内には、弁座、弁座に当接可能な弁体、及び
弁体を弁座に付勢する付勢手段とを有する弁機構が設け
られ、 該弁機構は、エンジンの運転時には前記流体通路を開け
る一方、エンジンの停止時には前記流体通路を閉じるこ
とを特徴とする請求項１ないし６いずれかに記載の流体
フィルタ。7. A fluid passage for guiding a filtered fluid to an engine is formed in the rotating body, and a valve seat, a valve body abutting against the valve seat, and a valve body are provided in the fluid passage. A valve mechanism having an urging means for urging a seat is provided, and the valve mechanism opens the fluid passage when the engine is operating, and closes the fluid passage when the engine is stopped. 7. The fluid filter according to any one of 1 to 6.
との間に設けられる弁機構用ばねからなることを特徴と
する請求項７に記載の流体フィルタ。8. The fluid filter according to claim 7, wherein the urging means comprises a valve mechanism spring provided between the rotating body and the valve body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002127168A JP3893313B2 (en) | 2002-04-26 | 2002-04-26 | Fluid filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002127168A JP3893313B2 (en) | 2002-04-26 | 2002-04-26 | Fluid filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003320206A true JP2003320206A (en) | 2003-11-11 |
| JP3893313B2 JP3893313B2 (en) | 2007-03-14 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002127168A Expired - Fee Related JP3893313B2 (en) | 2002-04-26 | 2002-04-26 | Fluid filter |
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| JP (1) | JP3893313B2 (en) |
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