JPH02157009A - Oil filter - Google Patents
Oil filterInfo
- Publication number
- JPH02157009A JPH02157009A JP63311254A JP31125488A JPH02157009A JP H02157009 A JPH02157009 A JP H02157009A JP 63311254 A JP63311254 A JP 63311254A JP 31125488 A JP31125488 A JP 31125488A JP H02157009 A JPH02157009 A JP H02157009A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- filter element
- filter
- cover
- oil inlet
- 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
- 239000000428 dust Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000003305 oil spill Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、給油系統に介装されるオイルフィルター、更
に詳しくはサクションラインフィルターの改良に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an oil filter installed in an oil supply system, and more particularly to an improvement in a suction line filter.
従来のこの種オイルフィルターは、第３図及び第４図に
示すように、フィルター本体ｌのケース２内に収納され
た円筒形状のフィルターエレメント３と、該ケース２に
着脱自在に装着したカッ＼−４とから構成されている。As shown in FIGS. 3 and 4, a conventional oil filter of this type includes a cylindrical filter element 3 housed in a case 2 of a filter body L, and a cup detachably attached to the case 2. -4.
５は油流入口、６は油流出口で、核油流出ロ６側には、
図示しないが吸引ポンプが連結されており、７は給送油
の最上面Ａより上方に形成される空室、８は油流入口５
からフィルターニレメン１−３を経て油流出口６までの
油通路である。5 is an oil inlet, 6 is an oil outlet, and on the nuclear oil spill room 6 side,
Although not shown, a suction pump is connected, 7 is a vacant space formed above the top surface A of oil supply, and 8 is an oil inlet 5.
This is an oil passage from the oil outlet 6 to the oil outlet 6 via the filter elm 1-3.
９はフィルターエレメント３の上部に設置された安全弁
機構で、フィルターエレメント３の」二方開ロ部３ａの
内径よりや−大きい外径を有する弁座部１０と、弁体部
１１とから構成されており、該弁座部１０には、中央部
の円筒部１２と同心円上に３個の円弧孔１３が形成され
ている。なお、この円弧孔１３の外径は、フィルターニ
レメン１〜３の開口部３ａの内径より少し小さく設定さ
れており、また、弁体部１１は前記円弧孔１３を閉塞で
きる大きさの円板形状で、中央には前記円筒部１２に嵌
入する円孔１１ａが形成されている。Reference numeral 9 denotes a safety valve mechanism installed on the upper part of the filter element 3, which is composed of a valve seat part 10 having an outer diameter slightly larger than the inner diameter of the two-way opening part 3a of the filter element 3, and a valve body part 11. Three arcuate holes 13 are formed in the valve seat portion 10 on a concentric circle with the cylindrical portion 12 at the center. The outer diameter of the arcuate hole 13 is set to be slightly smaller than the inner diameter of the opening 3a of the filter niremen 1 to 3, and the valve body portion 11 is a disc large enough to close the arcuate hole 13. A circular hole 11a that fits into the cylindrical portion 12 is formed in the center.
そして、弁座部１０の上に上下動自在に載置された弁体
部１１は、弁座部１０の裏面から挿入されたネジ１４を
弁体部１１のメネジｌｌｂに螺合し、弁座部１０の裏面
とネジ１４の頭部との間に介装されたスプリング１５に
より弁座部１０の円弧孔１３を閉塞している。Then, the valve body part 11 placed on the valve seat part 10 so as to be vertically movable is assembled by screwing the screw 14 inserted from the back side of the valve seat part 10 into the female thread llb of the valve body part 11. A spring 15 interposed between the back surface of the portion 10 and the head of the screw 14 closes the circular arc hole 13 of the valve seat portion 10.
上記のように構成された安全弁機構９は、バッキング１
６を介してフィルターエレメント３の上面に載置すると
共に、円筒部１２の上面に円筒バンキング１７を介して
カバー４をボルト１８止めすることによりフィルターエ
レメント３の上面に圧着固定され、他方フィルターエレ
メント３の下方開口部３ｂは油流入口５の内方フランジ
５ａと嵌合してケース２の底部により支持されている。The safety valve mechanism 9 configured as described above includes the backing 1
The cover 4 is mounted on the upper surface of the filter element 3 via the cylindrical portion 6 and fixed to the upper surface of the filter element 3 by fixing the cover 4 to the upper surface of the cylindrical portion 12 via the cylindrical banking 17 with bolts 18. The lower opening 3b fits into the inner flange 5a of the oil inlet 5 and is supported by the bottom of the case 2.
而して、吸引ポンプの吸引力により油流入口５から流入
した給送油は、フィルターエレメント３の中心部から外
側に向かって通過する時に、該フィルターエレメント３
によって濾過され、油通路８を通って油流出口６から流
出し、所定の油圧機器等に給油される。Therefore, when the supplied oil that flows in from the oil inlet 5 due to the suction force of the suction pump passes from the center of the filter element 3 toward the outside, the oil flows into the filter element 3.
The oil flows out from the oil outlet 6 through the oil passage 8, and is supplied to predetermined hydraulic equipment and the like.
そして、フィルターエレメント３の内■Ｉ口こゴミＲが
付着して目詰りした場合には、フィルターエレメント３
の内圧が高くなり、弁体部ＩＩがスプリング１５の弾力
に抗して押し上げられる。If the inside of the filter element 3 becomes clogged with debris R, then the filter element 3
The internal pressure increases, and the valve body part II is pushed up against the elasticity of the spring 15.
そのため、フィルターニレメンｌ−３内の給送油は、破
線矢印で示すように、弁座部１０の円弧孔１３を通過し
て油流出口６に至る。そして、このような場合には、カ
バー４を取外してケース２内から安全弁機構９を取り出
した後、フィルターエレメント３を上方へ抜き出し、洗
浄あるいは交換を行うのである。Therefore, the supplied oil in the filter nimber l-3 passes through the circular arc hole 13 of the valve seat portion 10 and reaches the oil outlet 6, as shown by the broken line arrow. In such a case, after removing the cover 4 and taking out the safety valve mechanism 9 from inside the case 2, the filter element 3 is pulled out upward and cleaned or replaced.
前記従来例のオイルフィルターは、フィルタエレメント
３が目詰りした場合、油流入口５から流入した給送油は
一旦フイルターニレメンｌ−３内に入り、次に該フィル
ターニレメン１−３内を上昇したのち、上方部の弁座部
１０の円弧孔１３を通過して油流出口６から排出される
ので、油流入口５から流入した清浄な給送油も、ゴミＲ
が付着したフィルターエレメント３内をｉＪ！Ｉ過する
ことにより汚染されることになる。In the conventional oil filter, when the filter element 3 becomes clogged, the supplied oil flowing from the oil inlet 5 enters the filter element 1-3 and then flows through the filter element 1-3. After rising, it passes through the circular arc hole 13 of the valve seat part 10 in the upper part and is discharged from the oil outlet 6, so that the clean feed oil that has flowed in from the oil inlet 5 also collects dust R.
iJ! This can lead to contamination.
また、前記安全弁機構９における弁座部１０の円弧孔１
３の外径は、機構上フィルターエレメント３の」二方開
ロ部りａ内に納まる大きさ、すなわち開口部３ａの内径
よりや＼小さく設定せざるを得ないため、該円弧孔１３
の全開口面積が油流入口５の開口面積より極端に小さく
なる。そのために、フィルターエレメント３の目詰まり
時に、吸引ポンプに大きな負担をかけることになる。Further, the circular arc hole 1 of the valve seat portion 10 in the safety valve mechanism 9
The outer diameter of the circular arc hole 13 has to be set to a size that fits within the two-way opening a of the filter element 3 for mechanical reasons, that is, the inner diameter of the opening 3a.
The total opening area of the oil inlet 5 is extremely smaller than that of the oil inlet 5. Therefore, when the filter element 3 becomes clogged, a large burden is placed on the suction pump.
さらに、フィルターエレメント３の上部に安全弁機構９
を設置したので、油通路８の上方に必ず空室７が形成さ
れることになり、この空室７に流動中の給送池内の気泡
によるエアーが溜る。そして、このエアーが吸引ポンプ
の吸引圧力の変化等により大量に給送油と共に油流出口
６から流出して吸引ポンプ内で圧縮混合されると、該ポ
ンプがキャビテーション現象を起こしたり、エアーのの
膨張、破裂現象等により給油系統中の給油管や、油圧機
器等が損傷することがあり、また、前記空室７内に封し
込められたエアーの圧力により油通路面積が現象して、
給油量が低下するといった諸欠点があった。Furthermore, a safety valve mechanism 9 is provided on the top of the filter element 3.
Since this is installed, a cavity 7 is necessarily formed above the oil passage 8, and air due to bubbles in the flowing feed pond accumulates in this cavity 7. If this air flows out from the oil outlet 6 along with the supplied oil in large quantities due to changes in the suction pressure of the suction pump, and is compressed and mixed within the suction pump, the pump may cause cavitation, or the air may Expansion, rupture, etc. may damage the oil supply pipes and hydraulic equipment in the oil supply system, and the oil passage area may be reduced due to the pressure of the air sealed in the cavity 7.
There were various drawbacks such as a decrease in the amount of oil supplied.
本発明は、上記の如き従来の欠点を解決するために成さ
れたもので、フィルタニレメン１−が目詰りした時にも
、清浄な給送油を汚すことなく油流出口に流出させるこ
とが出来ると＼もに、吸引ポンプに大きな負担をかける
ことのないオイルフィルターを提供することを目的とし
たものであり、その要旨は、上部側面に油流出口を、底
部中央に油流入口を夫々形成したケースの上方開口部を
カバーで閉塞すると＼もに、中央に導入筒部を有しその
外側に安全弁機構を備えた弁部材を前記油流入口側に装
着し、前記ケース内に配設したフィルターエレメントの
上方開口部を前記カバーの下面で閉塞すると＼もに、下
方開口部を前記弁部材の導入筒部を介して前記油流入口
と連通せしめたことを特徴とするオイルフィルターにあ
る。The present invention was made in order to solve the above-mentioned conventional drawbacks, and even when the filter element 1- is clogged, it is possible to allow clean feed oil to flow out to the oil outlet without contaminating it. The purpose of this is to provide an oil filter that does not place a large burden on the suction pump, as much as possible. When the upper opening of the formed case is closed with a cover, a valve member having an introduction cylinder in the center and a safety valve mechanism on the outside thereof is attached to the oil inlet side and disposed inside the case. The oil filter is characterized in that the upper opening of the filter element is closed by the lower surface of the cover, and the lower opening is communicated with the oil inlet through the introduction cylinder of the valve member. .
以下、本発明を第１図及び第２図に示す実施例により詳
細に説明する。なお、第１図は本発明に係るオイルフィ
ルターの縦断面図で、第２図は同オイルフィルターの要
部構成部品の分解斜視図である。Hereinafter, the present invention will be explained in detail with reference to the embodiments shown in FIGS. 1 and 2. Note that FIG. 1 is a longitudinal sectional view of an oil filter according to the present invention, and FIG. 2 is an exploded perspective view of main components of the oil filter.
図において、１はフィルター本体で、有底円筒状のケー
ス２と、該ケース２の上方開口部に装着した着脱自在な
カバー３と、前記ケース２内に収納される円筒形状のフ
ィルターエレメント４とから構成されており、前記カバ
ー３の下面に形成した突出部３ａをフィルターエレメン
ト４の上方開口部４ａに挿入して、前記カバー３の下面
で該開口部４ａを閉塞すると＼もに、ボルト２１止めす
ることによりカバー３をケース２の上方開口部に固定し
ている。In the figure, 1 is a filter main body, which includes a cylindrical case 2 with a bottom, a removable cover 3 attached to the upper opening of the case 2, and a cylindrical filter element 4 housed in the case 2. When the projection 3a formed on the lower surface of the cover 3 is inserted into the upper opening 4a of the filter element 4 and the opening 4a is closed with the lower surface of the cover 3, the bolt 21 By fastening, the cover 3 is fixed to the upper opening of the case 2.
５は前記ケース２の底部中央に形成した油流入口で、該
油流入口５側には、図示しないが、油タンクが連結され
ており、該ケース２の上方側面に形成された油流出口６
側には、図示しないが、吸引ポンプが接続されている。Reference numeral 5 denotes an oil inlet formed at the center of the bottom of the case 2. An oil tank (not shown) is connected to the oil inlet 5 side, and an oil outlet formed at the upper side of the case 2. 6
Although not shown, a suction pump is connected to the side.
なお、図中７は油通路で、油流入口５からフィルターエ
レメント４の外側を経て油流出口６に至る空室である。Note that 7 in the figure is an oil passage, which is a vacant space that extends from the oil inlet 5 to the oil outlet 6 via the outside of the filter element 4.
８は前記フィルターエレメント４の下部に設置された弁
部材で、第２図に示すように、上下に貫通した導入筒部
１１と、該導入筒部１１のド端から外方に水平に張り出
した円板状の弁座部９及び弁体部１０とからなる安全弁
機構とから構成されており、ケース２の底部に配設され
ている。Reference numeral 8 denotes a valve member installed at the lower part of the filter element 4, as shown in FIG. The safety valve mechanism includes a disc-shaped valve seat portion 9 and a valve body portion 10, and is disposed at the bottom of the case 2.
前記弁座部９は、外径が前記ケース２の下部内径とはソ
゛同−大きさの円板形状で、パツキン９ａを介してケー
ス２の油流入口５側に装着されており、該弁座部９には
前記導入筒部１１と同心円」−に複数個（図面では３個
）の円弧孔１２を形成すると−もに、各円弧孔１２及び
１２間には案内軸１３のオネジ１３ａが螺合するメネジ
１４が刻設されている。The valve seat part 9 has a disc shape with an outer diameter that is the same size as the inner diameter of the lower part of the case 2, and is attached to the oil inlet 5 side of the case 2 via a packing 9a. A plurality of circular arc holes 12 (three in the drawing) are formed in the seat portion 9 in a concentric circle with the introduction cylinder portion 11, and a male thread 13a of the guide shaft 13 is formed between each circular hole 12. A female thread 14 for screwing is provided.
また前記弁体部１０は、前記円弧孔１２を閉塞できる大
きさの円板形状で、中央には前記導入筒部１１に嵌入す
る円穴１５が形成されており、前記弁座部９のメネジ１
４と対応する位置に、案内軸１３が貫通する貫通孔１６
が形成されている。Further, the valve body portion 10 has a disk shape large enough to close the arcuate hole 12, has a circular hole 15 in the center that fits into the introduction cylinder portion 11, and has a female screw thread of the valve seat portion 9. 1
A through hole 16 through which the guide shaft 13 passes is located at a position corresponding to 4.
is formed.
そして、弁座部９の上面に上下動自在に載置された弁体
部１０は、その貫通孔１６に挿入された案内軸１３のオ
ネジ１３ａを前記弁座部９のメネジ１４に螺合すると＼
もに、弁体部１０と案内軸１３の頭部との間に介装され
たスプリング１７により、弁座部９の円弧孔１２を閉塞
している。The valve body part 10 mounted on the upper surface of the valve seat part 9 so as to be movable up and down is assembled when the male thread 13a of the guide shaft 13 inserted into the through hole 16 is screwed into the female thread 14 of the valve seat part 9. \
In addition, a spring 17 interposed between the valve body 10 and the head of the guide shaft 13 closes the arcuate hole 12 of the valve seat 9.
さらにまた、前記弁座部９の導入筒部１１の外周にはリ
ング１８が固定されており、このリング１８に固定され
た受承円板１９によりフィルターエレメント４の下面を
支承していると＼もに、該フィルターエレメント４内に
前記導入筒部１１の」二手部を突入させ、フィルターエ
レメント４の内部と油流入口５とを連通せしめている。Furthermore, a ring 18 is fixed to the outer periphery of the introduction cylinder part 11 of the valve seat part 9, and a receiving disk 19 fixed to this ring 18 supports the lower surface of the filter element 4. In addition, the two prongs of the introduction tube 11 are inserted into the filter element 4, thereby communicating the inside of the filter element 4 with the oil inlet 5.
なお、図中２０はフィルターエレメント４と導入筒部１
１との間のゴミ溜部、２２はフィルターエレメント４の
目詰り状態を検知する検知器を示す。In addition, 20 in the figure indicates the filter element 4 and the introduction cylinder part 1.
1 and 22, a detector for detecting the clogging state of the filter element 4.
正常時には、吸引ポンプの吸引力により油流入口５から
流入した給送油は、導入筒部１１内を通ってフィルター
エレメント４内に入り、その中心部から外側に向かって
通過することにより濾過され、油通路７を通って油流出
口６から流出され、所定の油圧機器等に給油される。Under normal conditions, the supplied oil flows from the oil inlet 5 due to the suction force of the suction pump, passes through the introduction cylinder 11, enters the filter element 4, and is filtered by passing from the center toward the outside. The oil flows out from the oil outlet 6 through the oil passage 7, and is supplied to predetermined hydraulic equipment and the like.
そして、フィルターエレメント４内にゴミＲが多数付着
して目詰り状態となった場合には、フィルターエレメン
ト４の中心部からその外側の油通路７に向かって通過す
る油の流通経路が遮断されるので、給送油はフィルター
エレメント４内に流入できず、油流入口５から流入した
給送油は、第１図の仮想線で示すように、弁体部１０を
スプリング１７の弾性に抗して押し上げる。If a large amount of dirt R adheres to the inside of the filter element 4 and the filter element 4 becomes clogged, the oil flow path from the center of the filter element 4 toward the oil passage 7 outside thereof is blocked. Therefore, the supplied oil cannot flow into the filter element 4, and the supplied oil flowing from the oil inlet 5 pushes the valve body 10 against the elasticity of the spring 17, as shown by the imaginary line in FIG. and push up.
その結果、給送油は弁座部９の円弧孔１２を通過して破
線矢印のように油通路７内に入り、核油通路７を上昇し
てカバー３の下面に形成した半球状凹面３ｂに沿って油
流出口６に流れる。As a result, the supplied oil passes through the circular arc hole 12 of the valve seat portion 9 and enters the oil passage 7 as indicated by the broken line arrow, and ascends through the core oil passage 7 to form a hemispherical concave surface 3b formed on the lower surface of the cover 3. The oil flows along to the oil outlet 6.
この際、弁座部９に形成された各円弧孔１２１２の総開
口面積は、油流入口５の開口面積とは＼同一大きさに形
成されているので、吸引ポンプに大きな負担をかけるこ
となく、油流出口６から給送油を排出する。At this time, since the total opening area of each circular arc hole 1212 formed in the valve seat portion 9 is formed to be the same size as the opening area of the oil inlet 5, there is no need to place a large burden on the suction pump. , the supplied oil is discharged from the oil outlet 6.
本発明に係るオイルフィルターは、上記のように、上部
側面に油流出口を、底部中央に油流入口を夫々形成した
ケースの上方開口部をカバーで閉塞すると＼もに、中央
に導入筒部を有しその外側に安全弁機構を備えた弁部材
を前記油流入口側に装着し、前記ケース内に配設したフ
ィルターエレメントの上方開口部を前記カバーの下面で
閉塞すると＼もに、下方開口部を前記弁部材の導入筒部
を介して前記油流入口と連通せしめた構成であるので、
フィルターエレメントが目詰り状態となった場合に、給
送油を汚染することなく油流出口に送出できると＼もに
、安全弁機構の総開口面積が油流入口の開口面積と同程
度に大きく形成されているため、吸引ポンプに大きな負
担がかかることがなく、長期にわたって使用できる。As described above, the oil filter according to the present invention has an oil filter in which the upper opening of the case, which has an oil outflow port formed on the upper side surface and an oil inflow port formed in the center of the bottom part, is closed with a cover, and an inlet cylinder part in the center. A valve member having a safety valve mechanism on the outside thereof is attached to the oil inlet side, and when the upper opening of the filter element disposed in the case is closed with the lower surface of the cover, the lower opening is closed. Since the valve member is configured to communicate with the oil inlet through the introduction cylinder portion of the valve member,
If the filter element becomes clogged, the supplied oil can be sent to the oil outlet without contaminating it, and the total opening area of the safety valve mechanism is made as large as the opening area of the oil inlet. Because of this, the suction pump does not put a big burden on it and can be used for a long period of time.
また、カバーの下面を油流出口の上面と連続する半球状
凹面としたから、給送油を円滑に排出Ｊることができ、
エアーによる圧力損失を防止することが出来るといった
諸効果がある。In addition, since the lower surface of the cover is made into a hemispherical concave surface that is continuous with the upper surface of the oil outlet, the supplied oil can be smoothly discharged.
It has various effects such as being able to prevent pressure loss due to air.
第１図は本発明に係るオイルフィルタの縦断面図、第２
図は同オイルフィルタの要部構成部品の分解斜視図、第
３図は従来のオイルフィルタの縦断面図、第４図は同オ
イルフィルタの要部構成部品の分解斜視図である。
１・・・フィルター本体、
３・・・カバー ３ｂ
４・ ・ ・フィルターエレメ
同上方開口部、 ４ｂ・
５・・・油流入口、 ６・
８・・・弁部材、 ９
１０・・・弁体部、 １１
１２・・・円弧孔、 １３
１７・・・スプリング。
２・・・ケース、
・・半球状凹面、
ト、 ４ａ ・ ・ ・
・同上方開口部、
・油流出１］、
・弁座部、
・・導入筒部、
・・・案内軸、Fig. 1 is a longitudinal cross-sectional view of an oil filter according to the present invention, Fig. 2 is a longitudinal sectional view of an oil filter according to the present invention;
3 is a vertical sectional view of a conventional oil filter, and FIG. 4 is an exploded perspective view of essential components of the oil filter. 1... Filter body, 3... Cover 3b 4... Upper opening of filter element, 4b. 5... Oil inlet, 6. 8... Valve member, 9 10... Valve body Parts, 11 12...Circular hole, 13 17...Spring. 2...Case,...Semispherical concave surface, 4a...Upper opening, -Oil spill 1], -Valve seat,...Introduction tube,...Guide shaft,
Claims (2)
々形成したケースの上方開口部をカバーで閉塞するとゝ
もに、中央に導入筒部を有しその外側に安全弁機構を備
えた弁部材を前記油流入口側に装着し、前記ケース内に
配設したフィルターエレメントの上方開口部を前記カバ
ーの下面で閉塞するとゝもに、下方開口部を前記弁部材
の導入筒部を介して前記油流入口と連通せしめたことを
特徴とするオイルフィルター。(1) The upper opening of the case, which has an oil outlet on the upper side and an oil inlet in the center of the bottom, is closed with a cover, and it also has an introduction tube in the center and a safety valve mechanism on the outside. A valve member is attached to the oil inlet side, and the upper opening of the filter element disposed in the case is closed with the lower surface of the cover, and the lower opening is connected to the introduction cylinder of the valve member. An oil filter, characterized in that the oil filter communicates with the oil inlet through the oil inlet.
凹面としたことを特徴とする特許請求の範囲第１項記載
のオイルフィルター。(2) The oil filter according to claim 1, wherein the lower surface of the cover is a hemispherical concave surface continuous with the upper surface of the oil outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63311254A JPH02157009A (en) | 1988-12-09 | 1988-12-09 | Oil filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63311254A JPH02157009A (en) | 1988-12-09 | 1988-12-09 | Oil filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02157009A true JPH02157009A (en) | 1990-06-15 |
| JPH045482B2 JPH045482B2 (en) | 1992-01-31 |
Family
ID=18014938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63311254A Granted JPH02157009A (en) | 1988-12-09 | 1988-12-09 | Oil filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02157009A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009192152A (en) * | 2008-02-14 | 2009-08-27 | Aisin Seiki Co Ltd | Strainer for air conditioner |
-
1988
- 1988-12-09 JP JP63311254A patent/JPH02157009A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009192152A (en) * | 2008-02-14 | 2009-08-27 | Aisin Seiki Co Ltd | Strainer for air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH045482B2 (en) | 1992-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4261545A (en) | Flush valve piston having filtered orifice | |
| US5887848A (en) | Flush valve bypass and filter | |
| US5236579A (en) | Fuel filter assembly with modular drain bowl | |
| US5591332A (en) | Filter assembly with automatic shut-off and quick-connect filter cartridge | |
| US4257890A (en) | Fuel-water separator | |
| US6182689B1 (en) | Filter mechanism for diaphragm flush valve | |
| US4834873A (en) | Combined reverse osmosis unit and water inflow control valve for a water purification system | |
| EP0364299A2 (en) | Filtering system | |
| US4327764A (en) | Float valve assembly for a liquid drain trap | |
| KR20080063756A (en) | Reverse osmosis filtration systems | |
| US3502214A (en) | Check valve for filter apparatus | |
| US3777889A (en) | Cartridge filter unit | |
| US4981160A (en) | Structure of water tap with improved flow rate control mechanism | |
| JPH0712247A (en) | Flush valve filter and bypass orifice | |
| US4185656A (en) | Dual check valve structure | |
| US4367144A (en) | Fluid strainer or filter | |
| JPH11137917A (en) | Oil filter | |
| JPH02157009A (en) | Oil filter | |
| US3334754A (en) | Filter head structure | |
| US3456800A (en) | Filter structure with alternative inlet and outlet housing openings | |
| JPH0533085B2 (en) | ||
| US4551071A (en) | Diaphragm-type fuel pump | |
| EP0154464A2 (en) | Thermostatically controlled pack hold-down assembly | |
| JPH044004B2 (en) | ||
| JP2647404B2 (en) | Pump device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090131 Year of fee payment: 17 |
|
| EXPY | Cancellation because of completion of term |