JP3679222B2 - Combined oil filter for engine - Google Patents

Combined oil filter for engine Download PDF

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Publication number
JP3679222B2
JP3679222B2 JP09653997A JP9653997A JP3679222B2 JP 3679222 B2 JP3679222 B2 JP 3679222B2 JP 09653997 A JP09653997 A JP 09653997A JP 9653997 A JP9653997 A JP 9653997A JP 3679222 B2 JP3679222 B2 JP 3679222B2
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oil
filter
filtration element
bypass
cylinder
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JPH1071306A (en
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貴志 大前
利昭 佐藤
洋行 駒井
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株式会社 マーレ テネックス
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/0415—Details of supporting structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/16—Valves
    • B01D2201/162—Valves with snap, latch or clip connecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/30—Filter housing constructions
    • B01D2201/301—Details of removable closures, lids, caps, filter heads
    • B01D2201/305—Snap, latch or clip connecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/46—Several filtrate discharge conduits each connected to one filter element or group of filter elements

Description

【０００１】
【発明の属する技術分野】
この発明はエンジン用のオイルフイルタ主としてフルフロー用のものとバイパス用のものとを併設した組合せ式オイルフイルタの改良に関する。
【０００２】
【従来の技術】
トラックや産業車両等に搭載されている大型のエンジンでは、潤滑油のろ過装置として、エンジンのシリンダー伝動機構等の給油部に送られるオイルの全量を処理するフルフロー式のものと、その一部だけを処理して直接オイルパンに戻すバイパス式のものを一つの容器中に一体的に組合せたオイルフイルタが用いられており、これまでのものは主に鉄板製コップ状のケースの内部にフルフロー用のろ過エレメントとバイパス用のろ過エレメントを二段重ねに収容し、ケースの開放端部に肉厚な鉄製のシートプレートと肉薄なカバープレートを施し、カバープレートとケースの端縁とをかしめ付けた、いわゆるカートリッジ式使い捨てのものであったが、最近では省資源，ゴミ処理対策の面から、ろ過エレメントだけを交換できるようにしたものが用いられるようになっている。
【０００３】
その一例を示せば図５のとおりであり、アルミニウム等の軽合金又はナイロン，ポリプロピレン，ポリエチレン等の合成樹脂からなるコップ状のケース１は底壁中央にボス筒１ａとその周囲にオイル取入れ用の通孔１ｂを備え、ケース１の内部には、鉄板製の多孔の内筒３ｂの周りにろ紙，不織布等のろ材３ａを菊花形筒状又はロール状に巻き付け、上下に鉄板製の端板３ｃ，３ｄを被着したフルフロー用のろ過エレメント３Ａと、バイパス用のろ過エレメント３Ｂをパッキング６を介在のもとに上下に重ねて収容し、バイパス用ろ過エレメント３Ｂの下端板３ｄにオイル流出防止用のゴム製傘状のバルブ５を装着した上で、これをケースのボス筒１ａに嵌め合せ、かつケース１の開放端部には同じ材質からなるカバー体２を螺合してオイルフイルタＦとなす。
【０００４】
そして、使用時にはケースのボス筒１ａをエンジン側のブラケットＢから起立した縦筒７に螺合すると共にバイパス用ろ過エレメント３Ｂの上端板３ｃに取付けたセンターパイプ４を縦筒７中に嵌合してオイルイルタＦをブラケットＢ上に取付け、オイルをブラケットＢの第１通路Ｂ1 から通孔１ｂを通じケース１内に取入れ、上のエレメント３Ａ又は下のエレメント３Ｂで浄化し、上のエレメント３Ａで処理したオイルはセンターパイプ４を通じブラケットＢの第２通路Ｂ2 からエンジンの給油部に送られ、下のエレメント３Ｂで処理したオイルは縦筒７に設けられた通孔７ａを通じブラケットＢの第３通路Ｂ3 からオイルパンに戻される。
【０００５】
【発明が解決しようとする課題】
時間の経過によりフイルタの交換時には、ブラケットＢにフイルタＦを取付けたままで、ケース１からカバー体２を外し、中の二つのろ過エレメント３Ａ，３Ｂを取出し、新しいものと交換することになるが、上記従来の組合せ式オイルフイルタでは、上のフルフロー用のろ過エレメント３Ａと下のバイパス用のろ過エレメント３Ｂは一体性がなく別々であるため、一つ一つ出し入れしなければならず、特に下側のバイパス用のろ過エレメント３Ｂは取出しにくく、交換作業に手間がかかり、そして取外したろ過エレメント３Ａ，３Ｂはばらばらであるため処理せずに置き忘れを生じ易い等の問題がある。
【０００６】
そこで、この発明は組合せ式のオイルフイルタとして、フルフロー用のろ過エレメントとバイパス用のろ過エレメントの交換に手間がかからず、作業がやり易く、処分忘れを生じないようにすることを課題とする。
【０００７】
【課題を解決するための手段】
上記課題達成のためにこの発明は、コップ状をなし、閉さ端壁にオイル戻し用のボス部を備えと共にオイル流入用の通孔を有するケースの内部に、フルフロー用のろ過エレメントとバイパス用のろ過エレメントを上下に重ねて配設し、フルフロー用ろ過エレメントで処理したオイルをボス部に連通するセンターパイプを介しエンジン給油部に送り、バイパス用ろ過エレメントで処理したオイルをオイルパンに戻すようにした組合せ式オイルフイルタとして、第１には、上記二つのろ過エレメントを、格子状の内筒の周りに筒状のろ材を配設しかつその上下端に環状の端板を被着して形成し、フルフロー用ろ過エレメントの内筒上には複数のフック杆を設け、上記センターパイプは、位置決め用のつばを有する短筒部とその一端部上に設けた複数のフック杆と円筒部とケースボス部に連通し周面に複数の羽根杆を有する小径筒部とで形成し、位置決め用のつばを二つのろ過エレメントの端板の間に挟持するち共にそのフック杆をフルフロー用ろ過エレメントの内筒に係止する一方、羽根杆をバイパス用ろ過エレメントの内筒に係止させ、ケースの開放端には内面に係止筒を設けたカバー体を着脱可能に取付けると共に係止筒にフルフロー用ろ過エレメント上のフック杆を着脱可能に係止させるようにしたことを特徴とし、第２には、上記センターパイプは、端面部周囲に位置決め用つばを有すると共に端面上に複数のフック杆を備えた短筒部と円錐部とケースボス部に連通する小径筒部とで形成し、位置決め用つばをバイパス用ろ過エレメントの内筒上端の横杆の内側段部に嵌合して固着する一方、二つのろ過エレメントの端板同士を圧接させ、かつセンターパイプ上のフック杆をフルフロー用ろ過エレメントの内筒に係止させるようにしたことを特徴としている。
【０００８】
【実施の形態】
図１はこの発明に係る組合せ式オイルフイルタＦの一例を示すものであり、１１はアルミニウム等の軽合金又はナイロン，ポリプロピレン，ポリエチレン等の合成樹脂からなる一端（図で上端）が開放されたコップ状のケースであって、その閉さ端壁（図で底壁）の中央部には内ねじ付のボス部１１ａが設けられていると共にその周囲部にオイル流入用の通孔１１ｂが設けられており、その内部には次のように構成されたフルフロー用のろ過エレメント１３Ａとバイパス用のろ過エレメント１３Ｂが上下に重ねられ、後述のようなセンターパイプ１４により一体に結合されて収容されている。
【０００９】
図２はフルフロー用のろ過エレメント１３Ａを一部省略して示すものであり、内側に配置される内筒１３ｂはケース１１と同じ材質（合成樹脂又は軽合金）であって、複数の縦杆１３ｂ1 と円形の横杆１３ｂ2 とで所定の直径と高さの格子状の筒枠として形成され、その上端は盲の円板でおおわれ、その上面には縦向きのフック杆１３ｂ3 が複数間隔をおいて設けられ、この内筒１３ｂの周りにはろ紙又は不織布からなるろ材１３ａが菊花形筒状又はロール状に巻き付けられ、上下端には若干厚手の紙又はフエルトからなる大径環状の端板１３ｃが接着，溶着（フエルトの場合）等により被着されている。
【００１０】
一方、バイパス用のろ過エレメント１３Ｂの構成は、上記フルフロー用のろ過エレメント１３Ａと大体同じであるが、その内筒１３ｂの上端は他の部分と同じく円形横杆であり、縦向きの係止杆を備えていない。そして、下端部にはオイル流入用の通孔１１ｂを開閉し、オイル流出防止のためのゴム製傘状のバルブ１５が軸部を内筒１３ｂに嵌め込む状態に装着されている。
【００１１】
図３は浄化オイルの流出を可能にすると共に上記フルフロー用のろ過エレメント１３Ａとバイパス用のろ過エレメント１３Ｂをつなぐセンターパイプ１４を示すものであり、エレメントの内筒１３ｂと同じ材質（合成樹脂又は軽合金）からなり、一端（図で上端）寄りの位置にあってフルフロー用のろ過エレメント１３Ａとバイパス用のろ過エレメント１３Ｂの内筒１３ｂ中に嵌合可能で、途中に両エレメント１３Ａ，１３Ｂの間に挟まれる位置決め用のつば１４ｂを備えた短筒部１４ａと、そこから一端側に伸びフルフロー用ろ過エレメント１３Ａの内筒１３ｂ中に挿入され、所定の横杆１３ｂ2 にかけ止められる複数のフック杆１４ｃと、他端（図で下端）側にあってエンジンのブラケットＢから起立するオイル戻し用の縦筒１７にパッキング１６を備えて気密に嵌合可能な小径筒部１４ｅと、この小径筒部１４ｅと上記短筒部１４ａを結ぶ円錐部１４ｄとで形成され、円錐部１４ｄと小径筒部１４ｅの境界部には外方に張出しバイパス用ろ過エレメント１３Ｂの内筒１３ｂの所定の横杆１３ｂ2 にかけ止められる羽根杆１４ｆが複数設けられている。
【００１２】
又ケース１１の開放端部に着脱可能にねじ込まれるカバー体１２は、ケース１１と同じ材料製で、その弧状の端壁内面にはフルフロー用ろ過エレメント１３Ａの内筒１３ｂ上のフック杆１３ｂ3 に係合可能な短かな係止筒１２ａが設けられている。
【００１３】
しかして、二つのろ過エレメント１３Ａ，１３Ｂはケース１１に収容される前にセンターパイプ１４によって次のようにして連結される。先ずバイパス用のろ過エレメント１３Ｂの上方からセンターパイプ１４の小径筒部１４ｅを内筒１３ｂ中に挿入し、羽根杆１４ｆを撓ませながら所定の横杆１３ｂ2 にかけ止めると共に短筒部１４ａのつば１４ｂを上の端板１３ｃ上に圧接させ、次いで短筒部１４ａから突出しているフック杆１４ｃをフルフロー用のろ過エレメント１３Ａの内筒１３ｂ中に挿入して所定の横杆１３ｂ2 にスナップ式に係止させると共につば１４ｂ上に下側の端板１３ｃを圧接させることにより、二つのろ過エレメント１３Ａ，１３Ｂは一体に連結される。
【００１４】
この状態で、バイパス用のろ過エレメント１３Ｂの内筒１３ｂに装着された傘状のバルブ１５をケース１１のボス部１１ａに嵌め合せる一方、ケース１１の開放端部にカバー体１２をねじ込んでいくと、フルフロー用のろ過エレメント１３Ａの内筒１３ｂ上のフック杆１３ｂ3 がカバー体１２内面の係止筒１２ａにスナップ式に係合し、二つのろ過エレメント１３Ａ，１３Ｂはカバー体１２に結合されてケース１１内に収容される。しかし、この二つのエレメント１３Ａ，１３Ｂの収容の仕方はこれに限らず、下のエレメント１３Ｂとセンターパイプ１４を結合しておいてケース１１に取付け、上のエレメント１３Ａはカバー体１２に結合した上で、そのカバー体１２をケース１１に取付けるようにしてもよい。
【００１５】
その使用時には、図１のようにケース１１のボス部１１ａをエンジンから張出したブラケットＢの縦筒１７の外側に螺合させると共にセンターパイプ１４の小径筒部１４ｅを縦筒１７の内側に嵌挿させることにより、オイルフイルタＦはブラケットＢ上に取付けられ、処理すべきオイルはブラケットＢの第１通路Ｂ1 から通孔１１ｂを通じてケース１１内に流入し、フルフロー用のろ過エレメント１３Ｂを横切って浄化されたオイルは内筒１３ｂ中に出て、センターパイプ１４中に入り、小径筒部１４ｅ及び縦筒１７を通りブラケットＢの第２通路Ｂ2 を経てエンジンの給油部に送られ、一方、バイパス用のろ過エレメント１３Ｂを横切って浄化されたオイルは内筒１３ｂ中に入り、縦筒１７に設けられた縦通孔１７ａ及びブラケットＢの第３通路Ｂ3 を通ってオイルパンに戻される。フイルタＦを上下を逆さにして用いる場合にはカバー体１２の中央肉厚部にドレン用の栓体１８が取付けられる。
【００１６】
又、ろ過エレメントの交換時には、ブラケットＢに固定されたケース１１からカバー体１２をねじ戻し、上方に持ち上げれば、フルフロー用とバイパス用のろ過エレメント１３Ａ，１３Ｂがカバー体１２と一しょになってケース１１から取出され、その後つながったままのろ過エレメント１３Ａ，１３Ｂを下方に引張ればフック杆１３ｂ3 が係止筒１２ａから外れて、カバー体１２から分離されることになり、そして、前記のようにセンターパイプ１４で予め連結された新しいろ過エレメント１３Ａ，１３Ｂをケース１１内に収容し、ケース１１にカバー体１２を螺合することによりエレメントの交換が行われる。
【００１７】
図４はケース１１とブラケットＢを一体成形するようにした変更例を示すものであり、この場合にはケース１１の閉さ端壁（底壁）がブラケットＢの一部をなすと共に中央ボス部１１ａがオイル戻し用の縦筒を兼ねており、又バイパス用のろ過エレメント１３Ｂの内筒１３ｂに下端には傘状のバルブに代えてゴム製環状のバルブ１５’が装着され、これがボス部１１ａに嵌め込まれているが、その他の構成，オイルのろ過作用とその流れ及びろ過エレメント１３Ａ，１３Ｂの交換のやり方等は図１の例と変りない。
【００１８】
図５は図４と同じくケース１１とブラケットＢを一体成形するようになす一方、上側のフルフロー用ろ過エレメント１３Ａと下側のバイパス用のろ過エレメント１３Ｂを直接に重ね合せ、両エレメント間のシール性を向上させるようにした変更例を示すものであり、この場合には、上下のろ過エレメント１３Ａ、１３Ｂをつなぐセンターパイプ１４は図６のような構造で、小径筒部１４ｅ上には羽根板１４ｆを備えず、又短筒部１４ａと位置決め用のつば１４ｂの直径は上述のものより小さく、つば１４ｂの外径がバイパスろ過エレメント１３Ｂの内筒１３ｂの内径にほぼ等しくなされ、その表面は短筒部１４ａの端面と面一になされている。
【００１９】
これに対し、バイパスろ過エレメント１３Ｂは図５、図７のようにその内筒１３ｂの上端の横杆１３ｂ2 が他のものより太く断面がＺ字状に形成され、上記センターパイプ１４が下方から挿入されて、位置決め用つば１４ｂが上端の横杆１３ｂ 2 の内側段部に当接され、その当接部は溶着（合成樹脂の場合）又はろう付け（軽合金の場合）され、短筒部１４ａ上に起立して設けられた複数のフック杆１４ｃは内筒１３ｂから所定の長さ上方に突出している。
【００２０】
又上端横杆１３ｂの外側段部にはろ材１３ａの上端をおおう紙、フェルト製の上の環状端板１３ｃの内周部が嵌め合わされ、その嵌合部はろ材１３ａに対するのと同じように接着、溶着等の手段により固着され、端板１３ｃの表面と内筒１３ｂの上端面は面一になされており、内筒１３ｂの下端にはゴム製環状のパッキング１５’が装着されている。
【００２１】
一方、上側のフルフロー用ろ過エレメント１３Ａの内筒１３ｂの円形横杆１３ｂ2 は他の横杆より太く断面が逆Ｌ字状に形成され、その外下側段部に下の環状端板１３の内周部が嵌合され、その嵌合部はろ材１３ａに対するのと同じく接着、溶着等により固着され、端板１３ｃの下面と内筒１３ｂの下端面が面一になされている。
【００２２】
そこで、バイパス用ろ過エレメント１３Ｂの内筒１３ｂに結合されたセンターパイプ１４上の複数のフック杆１４ｃをフルフロー用ろ過エレメント１３Ａの内筒１３ｂ中に下側から挿入すると、各先端の係止爪が下端の円形横杆１３ｂ2 の上面にスナップ式に係止する（この場合、係止爪が係止するのは下端以外の横杆でもよい）と同時に、バイパス用ろ過エレメント１３Ｂ上端の横杆１３ｂ2 端板１３ｃとフルフロー用ろ過エレメント１３Ａ下端の横杆１３ｂ2 端板１３ｃとが圧接し合って、二つのろ過エレメント１３Ａ、１３Ｂが一つに結合される。その際センターパイプ１４のつば１４ｂが内筒１３ｂの横杆１３ｂ2 に溶着又はろう付けにより結合され、かつ上下のエレメントの端板１３ｃ同士が密接しているので、二つのろ過エレメント１３Ａ、１３Ｂの接合部における気密性がより確実になる。場合によっては上下の端板１３ｃを接着するようにしてもよい。
【００２３】
この状態で、二つのろ過エレメント１３Ａ、１３Ｂをケース１１内に挿し入れ、バイパスろ過エレメント１３Ｂの内筒下端のパッキング１５’を中央ボス部１１ａに嵌め合せ、次いでケース１１の開放端部にカバー体１２をねじ込むことにより、カバー体下面の係止筒１２ａにフルフロー用ろ過エレメント１３Ａの内筒１３ｂ上のフック杆１３ｂ3 が係合し、二つのろ過エレメント１３Ａ、１３Ｂがカバー体１２と一体になってケース１１中に収容される。
【００２４】
そして、使用時におけるオイルの流入、流出の態様は上述のものと同じであり、エレメントの交換時にカバー体１２をねじ戻せば二つのろ過エレメント１３Ａ、１３Ｂカバー体１２と一体になってケース１１から取出され、前述のように新しいものと交換される。
【００２５】
【発明の効果】
この発明はケースの内部にフルフロー用ろ過エレメントとバイパス用ろ過エレメントを上下に重ねて配設し、フルフロー用ろ過エレメントで処理したオイルはエンジンの給油部に送り、バイパス用のろ過エレメントで処理したオイルはオイルパンに戻すようにした組合せ式のオイルフィルタとして、請求項１又は請求項２のように構成することによりろ過エレメントの交換時には、ケースからカバー体を取外すだけで、フルフロー用ろ過エレメントとバイパス用ろ過エレメントを一体にして取出すことができると共に新しい二つのろ過エレメントを一体的に収容することができ、交換に手間がかからず作業が容易であり、又使用ずみの二つのろ過エレメントはばらばらでないので置き忘れを生せず、更に、請求項２のように構成すれば、二つろ過エレメントの接合部における気密性をより確実にすることができ、そして、ろ過エレメントを金属を用いずに紙、不織布、フェルト、合成樹脂等の可燃性の材料で作れば、焼却処分することができ、ゴミの減少に役立ちゴミ処理上便利である。
【図面の簡単な説明】
【図１】この発明に係るオイルフイルタの一例の断面図。
【図２】フルフロー用のろ過エレメントの一部を省略した斜視図。
【図３】センターパイプの斜視図。
【図４】変更例の断面図。
【図５】他の変更例の断面図。
【図６】図５の変更例のセンターパイプの斜視図。
【図７】図５の変更例のバイパス用ろ過エレメントの一部を省略した斜視図。
【図８】従来のオイルフイルタの断面図。
【符号の説明】
１１ ケース １１ａ ボス部
１１ｂ 通孔 １２ カバー体
１２ａ 係止筒 １３Ａ フルフロー用ろ過エレメント
１３Ｂ バイパス用ろ過エレメント １３ａ ろ材
１３ｂ 内筒 １３ｂ3 フック杆
１３ｃ 端板 １４ センターパイプ
１４ａ 短筒部 １４ｂ つば
１４ｃ フック杆 １４ｅ 小径筒部
Ｂ ブラケット Ｆ オイルフイルタ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a combined oil filter in which an oil filter for an engine, mainly a full flow type and a bypass type, are provided.
[0002]
[Prior art]
For large engines mounted on trucks, industrial vehicles, etc., as a lubricating oil filtering device, a full-flow type that processes the entire amount of oil sent to the oil supply part of the engine cylinder transmission mechanism, etc., and only a part of it An oil filter is used that combines a bypass type that returns the oil directly to the oil pan in a single container, and the previous one is mainly used for full flow inside a cup-shaped case made of iron plate. The filter element for bypass and the filter element for bypass are accommodated in two tiers, a thick iron sheet plate and a thin cover plate are applied to the open end of the case, and the cover plate and the edge of the case are caulked Although it was a so-called cartridge-type disposable, it has recently become possible to replace only the filtration element in terms of resource saving and waste disposal measures. So that the the is used.
[0003]
An example of this is shown in FIG. 5. A cup-shaped case 1 made of a light alloy such as aluminum or a synthetic resin such as nylon, polypropylene, or polyethylene has a boss cylinder 1a at the center of the bottom wall and an oil intake around it. A through hole 1b is provided, and inside the case 1, a filter medium 3a such as filter paper or nonwoven fabric is wound around a porous inner cylinder 3b made of iron plate in a chrysanthemum tube shape or a roll shape, and an end plate 3c made of iron plate up and down , 3d and a full flow filtration element 3A and a bypass filtration element 3B are stacked one above the other with packing 6 interposed therebetween, and oil is prevented from flowing out on the lower end plate 3d of the bypass filtration element 3B. Is attached to the boss cylinder 1a of the case, and the cover body 2 made of the same material is screwed onto the open end of the case 1 to install oil. Eggplant and Iruta F.
[0004]
During use, the boss cylinder 1a of the case is screwed into the vertical cylinder 7 raised from the bracket B on the engine side, and the center pipe 4 attached to the upper end plate 3c of the bypass filter element 3B is fitted into the vertical cylinder 7. Install the Oiruiruta F on bracket B, oil intake into the first passage B 1 from the case 1 through the hole 1b of the bracket B, purged with elements 3B element 3A or below the top, and treated with elements 3A above The oil is sent from the second passage B 2 of the bracket B through the center pipe 4 to the oil supply section of the engine, and the oil processed by the lower element 3B is passed through the through hole 7a provided in the vertical cylinder 7 to the third passage B 3 of the bracket B. Is returned to the oil pan.
[0005]
[Problems to be solved by the invention]
When replacing the filter over time, the cover F 2 is removed from the case 1 with the filter F attached to the bracket B, and the two filtration elements 3A and 3B inside are removed and replaced with new ones. In the conventional combined oil filter, the upper full-flow filter element 3A and the lower bypass filter element 3B are not integral and separate, so they must be put in and out one by one. The filtration element 3B for bypassing is difficult to take out, requiring troublesome replacement work, and the removed filtration elements 3A and 3B are so loose that they can easily be left behind without being treated.
[0006]
Therefore, as an oil filter of the combination type, it is an object of the present invention to eliminate the hassle of replacing a full flow filtration element and a bypass filtration element, make the operation easy, and prevent forgetting disposal. .
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has a cup shape, a closed end wall provided with a boss part for returning oil, and a through-flow hole for oil inflow. In order to return the oil treated with the filter element for bypass to the oil pan through the center pipe communicating with the boss part, the oil treated with the filter element for bypass is sent to the oil supply part through the center pipe communicating with the boss part. As a combined oil filter, first, the above two filter elements are formed by arranging a cylindrical filter medium around a lattice-shaped inner cylinder and attaching annular end plates to the upper and lower ends thereof. A plurality of hook rods are provided on the inner cylinder of the full-flow filtration element, and the center pipe is provided with a short cylinder portion having a positioning collar and one end portion thereof. The hook rod is formed by a cylindrical portion and a small-diameter cylindrical portion having a plurality of blade rods connected to the case boss portion, and the positioning collar is sandwiched between the end plates of the two filter elements. Is engaged with the inner cylinder of the filtration element for full flow, while the vane hook is engaged with the inner cylinder of the filtration element for bypass, and a cover body having a retaining cylinder on the inner surface is detachably attached to the open end of the case. The hook pipe on the full-flow filtration element is detachably locked to the locking cylinder, and secondly, the center pipe has a positioning collar around the end surface portion and on the end surface. Formed with a short cylindrical part with multiple hooks , a conical part, and a small-diameter cylindrical part communicating with the case boss part, and the positioning collar is fitted to the inner step of the horizontal flange at the upper end of the inner cylinder of the bypass filter element do it While wearing, it is characterized in that so as to brought into pressure contact with the end plates are of two filter element, and locking the hook lever on the center pipe in the inner cylinder of the full-flow for filtration element.
[0008]
Embodiment
FIG. 1 shows an example of a combined oil filter F according to the present invention, and 11 is a cup with one end (upper end in the figure) made of a light alloy such as aluminum, or a synthetic resin such as nylon, polypropylene, or polyethylene. A boss portion 11a with an internal screw is provided at the center of the closed end wall (bottom wall in the figure), and an oil inflow through hole 11b is provided at the periphery thereof. Inside, a full-flow filtration element 13A and a bypass filtration element 13B, which are configured as follows, are stacked one above the other and accommodated together by a center pipe 14 as will be described later.
[0009]
FIG. 2 shows the full-flow filtration element 13A partially omitted, and the inner cylinder 13b disposed on the inner side is made of the same material (synthetic resin or light alloy) as the case 11, and includes a plurality of vertical rods 13b. 1 and a circular horizontal rod 13b 2 are formed as a grid-like cylindrical frame having a predetermined diameter and height, the upper end is covered with a blind disk, and a plurality of vertical hook rods 13b 3 are spaced on the upper surface. A filter medium 13a made of filter paper or non-woven fabric is wound around the inner tube 13b in a chrysanthemum tube shape or a roll shape, and a large-diameter annular end made of slightly thick paper or felt at the upper and lower ends. The plate 13c is attached by adhesion, welding (in the case of felt) or the like.
[0010]
On the other hand, the configuration of the filtration element 13B for bypassing is substantially the same as that of the filtering element 13A for full flow, but the upper end of the inner cylinder 13b is a circular recumbent like the other parts, and is a vertical locking rod. Not equipped. An oil inflow through hole 11b is opened and closed at the lower end, and a rubber umbrella-like valve 15 for preventing oil outflow is mounted in a state in which the shaft is fitted into the inner cylinder 13b.
[0011]
FIG. 3 shows the center pipe 14 that allows the purified oil to flow out and connects the full flow filtration element 13A and the bypass filtration element 13B, and is made of the same material (synthetic resin or light alloy) as the inner cylinder 13b of the element. ) And is close to one end (upper end in the figure) and can be fitted into the inner cylinder 13b of the filtration element 13A for full flow and the filtration element 13B for bypass, and between the elements 13A and 13B in the middle. A short cylindrical portion 14a provided with a positioning collar 14b to be sandwiched, and a plurality of hook rods 14c extending from one end to the inner tube 13b of the full flow filtration element 13A and hooked to a predetermined horizontal rod 13b 2 And a vertical cylinder 17 for oil return standing on the other end (lower end in the figure) and standing from the bracket B of the engine. Formed with a small-diameter cylindrical portion 14e that can be fitted in an airtight manner and a conical portion 14d that connects the small-diameter cylindrical portion 14e and the short cylindrical portion 14a, and is formed at the boundary between the conical portion 14d and the small-diameter cylindrical portion 14e. the predetermined transverse rod 13b 2 to the latch is vane lever 14f of the inner cylinder 13b of the extending bypass filter element 13B outwardly is provided with a plurality.
[0012]
Further, the cover body 12 detachably screwed into the open end of the case 11 is made of the same material as the case 11, and the inner surface of the arc-shaped end wall is connected to the hook rod 13 b 3 on the inner cylinder 13 b of the full flow filtration element 13 A. A short locking cylinder 12a that can be engaged is provided.
[0013]
Thus, the two filtration elements 13A and 13B are connected by the center pipe 14 as follows before being accommodated in the case 11. First inserted from above the filtering element 13B for bypassing in the inner cylinder 13b of the small diameter cylinder portion 14e of the center pipe 14, a short cylindrical portion 14a collar 14b with stop over a predetermined transverse rod 13b 2 while bending the blade lever 14f The hook rod 14c protruding from the short tube portion 14a is inserted into the inner tube 13b of the full flow filtration element 13A and snapped onto a predetermined horizontal rod 13b 2 in a snap manner. At the same time, the lower end plate 13c is pressed onto the collar 14b, whereby the two filtration elements 13A and 13B are integrally connected.
[0014]
In this state, when the umbrella-shaped valve 15 attached to the inner cylinder 13b of the filtration element 13B for bypass is fitted to the boss portion 11a of the case 11, the cover body 12 is screwed into the open end portion of the case 11. engages snap into locking cylinder 12a a hook lever 13b 3 on the inner cylinder 13b of the cover member 12 the inner surface of the filtration elements 13A for full flow, two filtration elements 13A, 13B is coupled to the cover body 12 Housed in the case 11. However, the housing method of the two elements 13A and 13B is not limited to this, and the lower element 13B and the center pipe 14 are coupled and attached to the case 11, and the upper element 13A is coupled to the cover body 12. The cover body 12 may be attached to the case 11.
[0015]
At the time of use, as shown in FIG. 1, the boss 11a of the case 11 is screwed into the outside of the vertical cylinder 17 of the bracket B projecting from the engine, and the small-diameter cylindrical part 14e of the center pipe 14 is fitted inside the vertical cylinder 17. by the oil filter F is mounted on the bracket B, the oil to be treated flows into the casing 11 through the first hole 11b from the passage B 1 of the bracket B, it is purified across the filtration element 13B for full-flow oil exits in the inner cylinder 13b, enters into the center pipe 14, the small diameter cylinder portion 14e and the vertical cylinder 17 via the second passage B 2 street bracket B is sent to the oil supply portion of the engine, whereas, for the bypass The oil purified across the filter element 13B enters the inner cylinder 13b, and the third through the vertical through hole 17a provided in the vertical cylinder 17 and the bracket B. It is returned to the oil pan through the passageway B 3. When the filter F is used upside down, a drain plug 18 is attached to the central thick portion of the cover 12.
[0016]
When replacing the filtration element, the cover body 12 is unscrewed from the case 11 fixed to the bracket B and lifted upward, so that the full flow and bypass filtration elements 13A and 13B are brought together with the cover body 12. If the filter elements 13A and 13B taken out from the case 11 and then connected are pulled downward, the hook rod 13b 3 is detached from the locking cylinder 12a and separated from the cover body 12, and Thus, the new filtration elements 13A and 13B previously connected by the center pipe 14 are accommodated in the case 11 and the cover body 12 is screwed into the case 11 to exchange the elements.
[0017]
FIG. 4 shows a modified example in which the case 11 and the bracket B are integrally formed. In this case, the closed end wall (bottom wall) of the case 11 forms a part of the bracket B and the central boss portion. 11a also serves as a vertical cylinder for oil return, and a rubber annular valve 15 ' is mounted at the lower end of the inner cylinder 13b of the filtration element 13B for bypass instead of an umbrella-shaped valve, which is a boss portion 11a. However, the other configuration, oil filtering action and flow, and the way of replacing the filtering elements 13A and 13B are the same as in the example of FIG.
[0018]
As in FIG. 4, the case 11 and the bracket B are integrally formed as in FIG. 4, while the upper full-flow filtration element 13A and the lower bypass filtration element 13B are directly overlapped to provide a sealing property between the two elements. In this case, the center pipe 14 that connects the upper and lower filtration elements 13A and 13B has a structure as shown in FIG. 6, and a vane plate 14f is provided on the small-diameter cylindrical portion 14e. The short cylinder portion 14a and the positioning collar 14b are smaller in diameter than those described above, and the outer diameter of the collar 14b is substantially equal to the inner diameter of the inner cylinder 13b of the bypass filtration element 13B. It is made flush with the end face of 14a.
[0019]
In contrast, the bypass filtering element 13B is 5, thicker cross section than that of the upper end of the inner tube 13b Yoko杆 13b 2 is other as shown in FIG. 7 is formed in a Z-shape, inserting the center pipe 14 from below is, positioning flange 14b is brought into contact with the inner stepped portion of Yoko杆13b 2 of the upper end, the contact portion is welded (in the case of synthetic resin) or brazing (in the case of light alloy), the short cylinder portion 14a The plurality of hook rods 14c provided upright above protrude upward from the inner cylinder 13b by a predetermined length.
[0020]
In addition, the outer peripheral portion of the upper end ridge 13b is fitted with an inner peripheral portion of a circular end plate 13c made of paper and felt covering the upper end of the filter material 13a, and the fitting portion is bonded in the same manner as for the filter material 13a. The surface of the end plate 13c and the upper end surface of the inner cylinder 13b are flush with each other, and a rubber annular packing 15 'is attached to the lower end of the inner cylinder 13b.
[0021]
On the other hand, the circular horizontal bar 13b 2 of the inner cylinder 13b of the upper full-flow filtration element 13A is thicker than the other horizontal bar and has a reverse L-shaped cross section. The inner peripheral portion is fitted, and the fitting portion is fixed by adhesion, welding, or the like, similarly to the filter medium 13a, and the lower surface of the end plate 13c and the lower end surface of the inner cylinder 13b are flush with each other.
[0022]
Therefore, when a plurality of hook rods 14c on the center pipe 14 coupled to the inner cylinder 13b of the bypass filtration element 13B are inserted into the inner cylinder 13b of the full flow filtration element 13A from the lower side, the locking claws at the respective ends are moved to the lower ends. locking snap on the upper surface of the circular Yoko杆 13b 2 (in this case, may be Yoko杆 other than the lower end of the locking claw is engaged) at the same time, Yoko杆 13b 2 bypass filtering element 13B upper The end plate 13c and the horizontal plate 13b at the lower end of the full flow filtration element 13A 2 are pressed against each other, and the two filtration elements 13A and 13B are joined together. At that time the center pipe 14 collar 14b is coupled by welding or brazing to Yoko杆 13b 2 of the inner cylinder 13b, and since the end plate 13c between the upper and lower elements are closely, two filtration elements 13A, 13B joining the Airtightness in the part is more certain. In some cases, the upper and lower end plates 13c may be bonded.
[0023]
In this state, the two filtration elements 13A and 13B are inserted into the case 11, the packing 15 'at the lower end of the inner cylinder of the bypass filtration element 13B is fitted into the central boss portion 11a, and then the cover body is attached to the open end of the case 11 by screwing the 12, the hook lever 13b 3 is engaged on the inner cylinder 13b of the full-flow for filtration elements 13A to cover the lower surface of the locking cylinder 12a, two filtration elements 13A, 13B is integral with the cover body 12 In the case 11.
[0024]
In addition, the inflow and outflow modes of the oil during use are the same as those described above. If the cover body 12 is unscrewed when the element is replaced, the two filter elements 13A and 13B are integrated with the cover body 12 from the case 11. Taken out and replaced with a new one as described above.
[0025]
【The invention's effect】
In this case, a full-flow filter element and a bypass filter element are placed one above the other inside the case, and the oil treated with the full-flow filter element is sent to the oil supply section of the engine, and the oil treated with the bypass filter element As a combined oil filter that is returned to the oil pan, it is configured as in claim 1 or claim 2 so that when the filter element is replaced, the cover element is bypassed from the full flow by simply removing the cover from the case. The filter element can be taken out as a unit, and two new filter elements can be accommodated in one piece, so that it is easy and easy to replace, and the two used filter elements are separated. If it is configured as in claim 2, it will not be misplaced. The airtightness at the joint of the excess element can be made more reliable, and if the filter element is made of flammable material such as paper, non-woven fabric, felt, synthetic resin without using metal, it can be incinerated. This is useful for reducing waste and is useful for waste disposal.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an example of an oil filter according to the present invention.
FIG. 2 is a perspective view in which a part of a full flow filtration element is omitted.
FIG. 3 is a perspective view of a center pipe.
FIG. 4 is a cross-sectional view of a modified example.
FIG. 5 is a cross-sectional view of another modified example.
6 is a perspective view of a center pipe according to a modification of FIG.
FIG. 7 is a perspective view in which a part of the bypass filter element of the modified example of FIG. 5 is omitted.
FIG. 8 is a cross-sectional view of a conventional oil filter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Case 11a Boss part 11b Through-hole 12 Cover body 12a Locking cylinder 13A Full flow filtration element 13B Bypass filtration element 13a Filter medium 13b Inner cylinder 13b 3 Hook hook 13c End plate 14 Center pipe 14a Short cylinder part 14b Collar 14c Hook collar 14e Small diameter Tube part B Bracket F Oil filter

Claims (2)

コップ状をなし、閉さ端壁にオイル戻し用のボス部を備えると共にオイル流入用の通孔を有するケースの内部に、フルフロー用のろ過エレメントとバイパス用のろ過エレメントを上下に重ねて配設し、フルフロー用ろ過エレメントで処理したオイルをボス部に連通するセンターパイプを介しエンジン給油部に送り、バイパス用ろ過エレメントで処理したオイルをオイルパンに戻すようにした組合せ式オイルフイルタにおいて、上記二つのろ過エレメントを、格子状の内筒の周りに筒状のろ材を配設しかつその上下端に環状の端板を被着して形成し、フルフロー用ろ過エレメントの内筒上には複数のフック杆を設け、上記センターパイプは、位置決め用のつばを有する短筒部とその一端部上に設けた複数のフック杆と円錐部とケースボス部に連通し周面に複数の羽根杆を有する小径筒部とで形成し、位置決め用のつばを二つのろ過エレメントの端板の間に挟持すると共にそのフック杆をフルフロー用ろ過エレメントの内筒に係止する一方、羽根杆をバイパス用ろ過エレメントの内筒に係止させ、ケースの開放端には内面に係止筒を設けたカバー体を着脱可能に取付けると共に係止筒にフルフロー用ろ過エレメント上のフック杆を着脱可能に係止させるようにしたことを特徴とするエンジン用組合せ式オイルフイルタ。Fully-flow filtration element and bypass filtration element are placed one above the other inside a cup-shaped case with a boss for oil return on the closed end wall and a through hole for oil inflow. In the combined oil filter in which the oil treated with the full-flow filter element is sent to the engine oil supply part through the center pipe communicating with the boss part, the oil treated with the bypass filter element is returned to the oil pan. The filtration element is formed by arranging a cylindrical filter medium around a grid-like inner cylinder and attaching annular end plates to the upper and lower ends of the filtration element, and a plurality of hooks are formed on the inner cylinder of the full-flow filtration element. The center pipe is connected to a short tube portion having a positioning collar, a plurality of hook rods provided on one end portion thereof, a conical portion, and a case boss portion. And a small-diameter cylindrical portion having a plurality of blade rods on the peripheral surface, holding a positioning collar between the end plates of the two filtration elements and locking the hook rod to the inner cylinder of the full-flow filtration element , The blade 杆 is locked to the inner cylinder of the bypass filter element, and a cover body having a lock cylinder on the inner surface is detachably attached to the open end of the case, and the hook 上 の on the full flow filter element is attached to the lock cylinder. A combined oil filter for an engine, wherein the oil filter is detachably locked. コツプ状をなし閉さ端壁にオイル戻し用のボス部を備えると共にオイル流入用の通孔を有するケースの内部に、フルフロー用のろ過エレメントとバイパス用のろ過エレメントを上下に重ね合せて配設し、フルフロー用ろ過エレメントで処理したオイルをボス部に連通するセンターパイプを介しエンジン給油部に送り、バイパス用ろ過エレメントで処理したオイルをオイルパンに戻すようにした組合せ式オイルフィルタにおいて、上記二つのろ過エレメントを、格子状の内筒の周りに筒状のろ材を配設し、かつその上下端に環状の端板を被着して形成し、フルフロー用ろ過エレメントの内筒上には複数のフック杆を設け、上記センターパイプは、端面部周囲に位置決め用のつばを有すると共に端面上に複数のフック杆を備えた短筒部と円錐部とケースボス部に連通する小径筒部とで形成し、位置決め用のつばをバイパス用ろ過エレメントの内筒上端の横杆の内側段部に嵌合して固着する一方、二つのろ過エレメントの端板同士を圧接させ、かつセンターパイプ上のフック杆をフルフロー用ろ過エレメントの内筒に係止させ、ケースの開放端には内面に係止筒を設けたカバー体を着脱可能に取付けると共に係止筒にフルフロー用ろ過エレメントのフック杆を着脱可能に係止させるようにしたことを特徴とするエンジン用組合せ式のオイルフィルタ。 A full flow filtration element and a bypass filtration element are placed one above the other inside a cup-shaped closed end wall with a boss for oil return on the closed end wall and a through hole for oil inflow. In the combined oil filter, the oil processed by the full flow filtration element is sent to the engine oil supply section through the center pipe communicating with the boss section, and the oil processed by the bypass filtration element is returned to the oil pan. the filter element, arranged a grid of the inner cylinder cylindrical filter material around, and the annular end plate is formed by adhering to the upper and lower ends, a plurality of on the inner cylinder of filtration elements for full flow a hook rod provided, said center pipe includes a short tubular portion having a plurality of hook rod on the end face and the conical portion and having a collar for positioning around the end face portion Formed between the small diameter cylinder portion communicating with the Subosu portion, while secured by fitting the flange for positioning the inner stepped portion of Yoko杆 of the inner tube the upper end of the bypass filter element, the end plates are of two filtration elements And the hook杆 on the center pipe is locked to the inner cylinder of the full flow filtration element, and a cover body with a locking cylinder on the inner surface is detachably attached to the open end of the case, and the full flow is applied to the locking cylinder. A combined oil filter for an engine, wherein a hook 杆 of the filter element is detachably locked.
JP09653997A 1996-06-27 1997-03-31 Combined oil filter for engine Expired - Lifetime JP3679222B2 (en)

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JP09653997A JP3679222B2 (en) 1996-06-27 1997-03-31 Combined oil filter for engine

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JP18532196 1996-06-27
JP8-185321 1996-06-27
JP09653997A JP3679222B2 (en) 1996-06-27 1997-03-31 Combined oil filter for engine

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JP3679222B2 true JP3679222B2 (en) 2005-08-03

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US9700818B2 (en) * 2010-12-30 2017-07-11 Baldwin Filters, Inc. Vented liquid filter vented through media
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