JPH02169006A - Engine-oil deterioration preventing device - Google Patents
Engine-oil deterioration preventing deviceInfo
- Publication number
- JPH02169006A JPH02169006A JP63324159A JP32415988A JPH02169006A JP H02169006 A JPH02169006 A JP H02169006A JP 63324159 A JP63324159 A JP 63324159A JP 32415988 A JP32415988 A JP 32415988A JP H02169006 A JPH02169006 A JP H02169006A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- foreign matter
- engine
- dispersant
- engine oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010705 motor oil Substances 0.000 title claims abstract description 40
- 230000006866 deterioration Effects 0.000 title claims abstract description 20
- 239000003921 oil Substances 0.000 claims abstract description 71
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 35
- 239000002270 dispersing agent Substances 0.000 claims abstract description 23
- 238000005461 lubrication Methods 0.000 claims abstract description 13
- 239000003599 detergent Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 10
- 239000002245 particle Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- -1 sluclge Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、例えば、エンジン油中に含有するｒ４物の
粒径を大きくしてオイルフィルタで１−ラップすること
により、エンジン油の劣化を防止するようなエンジン油
の劣化防止装置に関する。Detailed Description of the Invention (Industrial Field of Application) This invention prevents deterioration of engine oil by, for example, enlarging the particle size of R4 contained in engine oil and wrapping it in an oil filter. This invention relates to an engine oil deterioration prevention device that prevents deterioration of engine oil.
〈従来技術）
一般に、エンジン油中には、粒径約７μ以下のレジン（
ｒｅｓｉｎ ） 、摩耗粉、オイル劣化物、スラッジ（
ｓｌｕｃｌｇｅ、油どろ）、スス等の異物を均一に分散
する目的で、添加剤としての清浄分散剤たとえばＺｎ−
ＤＴＰが混入されている。<Prior art> Generally, engine oil contains resin (with a particle size of approximately 7 μm or less).
resin), wear particles, oil deterioration products, sludge (
For the purpose of uniformly dispersing foreign substances such as sluclge, oil sludge) and soot, cleaning and dispersing agents such as Zn-
Contains DTP.
１述の清浄分散剤による異物の師持４１１造は、第５図
に添加剤を［Ｚｒｘ−Ｘ４］４＋で、また異物をＱで示
すように、スラッジ、スス、摩耗粉等の異物は負に帯電
した状態で分散されているが、清浄分散剤の許容以上の
異物たとえば約０．２８重量パーセントの異物がエンジ
ン油中に含有した場合には、上述の清浄分散剤による異
物分散能力が大幅に低下し、オイル粘度の増大、動弁系
およびピストン等の摩耗発生、オイルポンプのキャビテ
ーション、潤滑不良、デポジット（ｄｅｐｏｓｉｔ 、
沈澱掬）生成促進などの諸種の問題が発生する。The 411 structure that removes foreign matter using the detergent and dispersant mentioned above is shown in Figure 5 as showing the additive as [Zrx-X4]4+ and the foreign matter as Q. Foreign matter such as sludge, soot, and wear powder is However, if more foreign matter than the detergent/dispersant allows, for example, about 0.28% by weight, is contained in the engine oil, the detergent/dispersant's foreign matter dispersion ability will be significantly reduced. oil viscosity, wear of the valve train and pistons, cavitation of the oil pump, poor lubrication, deposits, etc.
Various problems occur, such as acceleration of sedimentation.
このような問題点を解決するために、仮りにエンジン油
中への清浄分散剤の添加量を増やすと、ブローバイガス
中のオイルミストによって触媒にリン（Ｐ）が付着し、
触蝶機能およびエンジン機能が悪化するので、清浄分散
剤の添加量を増やすことは好ましくない。In order to solve these problems, if we increase the amount of detergent and dispersant added to the engine oil, phosphorus (P) will adhere to the catalyst due to oil mist in the blow-by gas.
It is undesirable to increase the amount of detergent-dispersant added, as this will impair the spray function and engine function.
また、大半が粒径約７μ以下の上述の異物をオイルフィ
ルタによりトラップする目的で、通常７〜１０μメツシ
ユのオイルフィルタを７μメツシユ以下に設定すると、
フィルタ抵抗圧が増大して、必要な潤滑油量の確保が困
難となるため、オイルフィルタのこのようなメツシュ変
更は実用不可能である。In addition, in order to trap the above-mentioned foreign substances, most of which have a particle size of about 7μ or less, by setting the oil filter, which normally has a 7 to 10μ mesh, to a size of 7μ or less,
Since the filter resistance pressure increases and it becomes difficult to secure the necessary amount of lubricating oil, such a mesh change of the oil filter is impractical.
なお、特開昭６３−１６２９１６号公報には、オイルパ
ン内のオイルレベル変化に応じて内部のオイルレベルが
変化する筒体に、規定レベルで電極が接するフロントを
設け、機関停止から電極が接するまでの時間に応じて、
潤滑油劣化を正確に検出するエンジンオイルのオイル状
＠検出装置か１ｆｎ示されているが、この装置は単にエ
ンジン油の劣化を検出するのみで、劣化を防止すること
はできない。In addition, in Japanese Patent Application Laid-open No. 63-162916, a cylinder whose internal oil level changes according to changes in the oil level in the oil pan is provided with a front to which an electrode contacts at a specified level, and the electrode contacts from the engine stoppage. Depending on the time until
An engine oil oil condition detection device 1fn is shown that accurately detects deterioration of lubricating oil, but this device only detects deterioration of engine oil and cannot prevent deterioration.
（発明の目的）
この発明は、上述の清浄分散剤の添加量を同等増大する
ことなく、またオイルフィルタのメツシュ変更を行なう
ことなく、特異な構成により、エンジン油中に含有する
異物の粒径を大きくして、この異物をオイルフィルタで
トラップすることにより、エンジン油の劣化を確実に抑
制することができるエンジン油の劣化防止装置の提供を
目的とする。(Purpose of the Invention) This invention has a unique structure that eliminates the particle size of foreign substances contained in engine oil without increasing the amount of the above-mentioned detergent dispersant added or changing the mesh of the oil filter. An object of the present invention is to provide an engine oil deterioration prevention device that can reliably suppress deterioration of engine oil by increasing the amount of foreign matter and trapping the foreign matter with an oil filter.
（発明の構成）
この発明は、サクションパイプとオイルフィルタとの間
のエンジン潤滑経路に分離剤供給ラインを接続し、清浄
分散剤が添加されたエンジン油中の異物の含有率が許容
以上に達した時、上記分離剤供給ラインから、清浄分散
剤による異物保持を破壊して、異物を成長させる公害を
剤を供給制御する制御手段を６ｉｉえたエンジン油の劣
化防止装置であることを特徴とする６
（発明の効果）
この発明によれば、清浄分散剤が添加されたエンジン油
中の異物の含有率の許容以上に達した時、に述の制御手
段が分離剤供給ラインを介してサクションパイプとオイ
ルフィルタとの間のエンジン潤滑経路に分８を刑を供給
する。(Structure of the Invention) This invention connects a separating agent supply line to the engine lubrication path between the suction pipe and the oil filter, and the content of foreign substances in the engine oil to which the detergent dispersant is added reaches an allowable level. The engine oil deterioration prevention device is characterized in that it is equipped with a control means for controlling the supply of a pollution agent that destroys the foreign matter retention by the detergent dispersant and causes foreign matter to grow from the separation agent supply line when the separation agent supply line 6ii 6 (Effects of the Invention) According to the present invention, when the content of foreign substances in the engine oil to which the detergent dispersant is added exceeds the permissible level, the control means described in 2. 8 minutes into the engine lubrication path between the engine and the oil filter.
上述のエンジン潤滑経路に分離剤が供給されると、この
分離剤の作用により清浄分散剤の異物保持力を小さくし
て、同分散剤による異物保持を破壊すると同時に、分離
剤のバインダ機能により異物同志を１寸着凝集させて、
異物の粒径を大きく成長させる。When a separating agent is supplied to the engine lubrication path described above, the action of this separating agent reduces the ability of the cleaning dispersant to hold foreign objects, destroying the ability of the dispersant to hold foreign objects, and at the same time, the binder function of the separating agent removes foreign objects. Gather all your comrades together,
Increase the particle size of foreign matter.
この結果、成長した異物を通常メツシュのオイルフィル
タでトラップすることができ、エンジン油の劣化を確実
に抑制することができる効果がある。As a result, the grown foreign matter can be trapped by the ordinary mesh oil filter, and there is an effect that deterioration of the engine oil can be reliably suppressed.
（実施例） この発明の一実施例を以下図面に基づいて詳述する。(Example) An embodiment of the present invention will be described in detail below based on the drawings.
図面はエンジン油の劣化防止装置を備えたエンジンの潤
滑′Ａ置を示し、第１図において、エンジン１のオイル
パン２内にエンジン油３いわゆるオイルを貯溜すると共
に、このエンジン油３中にオイルストレーナ４を浸漬し
ている。The drawing shows a lubrication system for an engine equipped with an engine oil deterioration prevention device. In FIG. Strainer 4 is immersed.
また、クランク軸５によって駆動されるオイルポンプ６
を設け、このオイルポンプ６の吸込側と上述のオイルス
トレーナ４との間をサクションパイプ７で接続している
。Also, an oil pump 6 driven by the crankshaft 5
A suction pipe 7 connects the suction side of the oil pump 6 and the oil strainer 4 described above.
さらに、上述のオイルポンプ６の吐出側にはオイル吐出
管８を接続すると共に、このオイル吐出管８から分岐し
た分岐管９にはリリーフバルブ１０を接続している。Further, an oil discharge pipe 8 is connected to the discharge side of the oil pump 6, and a relief valve 10 is connected to a branch pipe 9 branched from the oil discharge pipe 8.
一方、エンジン１におけるシリンダブロック外面には７
〜１０μメツシユのオイルフィルタｌ】を収付け、この
オイルフィルタ１１のオイル入口に上述のオイル吐出管
８を連通接続し、浄化オイル出口にはメインオイル通路
１２を接続している。On the other hand, the outer surface of the cylinder block in engine 1 has 7
A ~10μ mesh oil filter 1] is housed, the oil discharge pipe 8 mentioned above is connected to the oil inlet of this oil filter 11, and the main oil passage 12 is connected to the purified oil outlet.
そして、このメインオイル通路１２を分岐点１３におい
て動弁装″ｆ１１４潤滑用の第１オイル供給通路１５と
、クランク軸５およびピストン１６潤滑用の第２オイル
供給通路１７とに分岐している。The main oil passage 12 is branched at a branch point 13 into a first oil supply passage 15 for lubricating the valve train "f114" and a second oil supply passage 17 for lubricating the crankshaft 5 and piston 16.
上述の第２オイル供給通路１７の先端には、クランク軸
５の軸方向に延びるメイン流路１８を連通ずると共に、
このメイン流路１８から分岐させた分岐路１９・・・を
介してクランク軸５内のオイル通路２０にエンジン油３
を送給すべく構成している。A main flow path 18 extending in the axial direction of the crankshaft 5 is communicated with the tip of the second oil supply passage 17, and
Engine oil 3 is supplied to the oil passage 20 in the crankshaft 5 through branch passages 19 branched from the main passage 18.
It is configured to send.
また、上述のオイル通路２０に遅通し、シリンダライナ
とピストンリングとの間にエンジン油３を噴出するオイ
ルジェット２１・・・を気筒相当数形成している。In addition, oil jets 21 are formed in a number corresponding to the number of cylinders that slowly pass through the oil passage 20 and jet engine oil 3 between the cylinder liner and the piston ring.
一方、前述の第１オイル供給通路１５の先端には、ロッ
カーシャフト内に該シャフトの軸方向に沿って形成した
オイル孔２２．２２を連通ずると共に、２本のオイル孔
２２．２２を連通路２３で互いに連通させている。On the other hand, the tip of the first oil supply passage 15 is connected to an oil hole 22.22 formed in the rocker shaft along the axial direction of the shaft, and two oil holes 22.22 are connected to the communication path. 23 to communicate with each other.
ところで、上述のサクションパイプ７とオイルフィルタ
１１との間のエンジン潤滑経路、具体的にはリリーフバ
ルブ１０よりも下流側で、オイルフィルタ１１のオイル
入口よりも上流側のエンジン潤滑経Ｍ＠２４には、分離
剤供給ライン２５を接続し、この分離材供給ライン２５
に電磁弁２６を介設すると共に、同ライン２５の基部は
サブタンク２７内の分離剤２８中に浸漬している。By the way, the engine lubrication path between the above-mentioned suction pipe 7 and the oil filter 11, specifically, the engine lubrication path M@24 downstream of the relief valve 10 and upstream of the oil inlet of the oil filter 11. connects the separating agent supply line 25, and this separating agent supply line 25
A solenoid valve 26 is interposed in the line 25, and the base of the line 25 is immersed in a separating agent 28 in a sub-tank 27.
ここで、上述の分離剤２８としてはトルエン（ｔｏｌｕ
ｅｎ、 Ｃ６Ｈ５ＣＨ３）およびベンゼン（ｂｅｎｚｅ
ｎｅ 、Ｃ６Ｈｆ３ ）などの芳香族炭化水素（ａｒｏ
ｎａｔ ｉｃ ｈｙｄｒｏｃａｒｂｏｎ、いわゆるアロ
ア）が４０〜５０重量バーセンサを占めるガソリンある
いはローへブタン（Ｃ７Ｈ１６）を用いる。Here, toluene (toluene) is used as the above-mentioned separating agent 28.
en, C6H5CH3) and benzene (benze
Aromatic hydrocarbons such as ne, C6Hf3)
Gasoline or rhohebutane (C7H16) is used in which the natic hydrocarbon (so-called Alloa) occupies 40 to 50 weight bars.
上述のサブタンク２７内を加圧し、かつ電磁弁２６を開
弁することで、エンジン潤滑経路２４に上述の分離剤２
８を少量添加すると、エンジン油３中の清浄分散剤によ
る異物保持力が小さくなり、分離剤２８の大きな電気泳
動（コロイド粒子が電極へ移動する現象）により清浄分
散剤の異′＄Ａ保持が破壊されると同時に、分離剤２８
がバインダとなって異物同志を付着凝集させて、異物の
粒径を約２〜３倍以上に大きく成長させることができる
。By pressurizing the sub-tank 27 and opening the solenoid valve 26, the separating agent 2 is introduced into the engine lubrication path 24.
When a small amount of 8 is added, the ability of the detergent dispersant in the engine oil 3 to retain foreign matter becomes smaller, and the large electrophoresis of the separating agent 28 (a phenomenon in which colloidal particles move toward the electrode) causes the detergent dispersant to retain foreign substances. At the same time as being destroyed, the separation agent 28
acts as a binder and causes the foreign matter to adhere and coagulate, thereby increasing the particle size of the foreign matter by approximately 2 to 3 times or more.
すなわち、上述の分離剤２８を少量添加することにより
、異物の分布特性は第２図の点線状態から同図の実線状
態に変化し、オイルフィルタ１１によるトラックが可能
な粒径（同図の斜線部参照）の異物分布率が大幅に増加
する。That is, by adding a small amount of the above-mentioned separating agent 28, the distribution characteristics of foreign particles change from the state shown by the dotted line in FIG. (see section) significantly increases the foreign material distribution rate.
第３図はエンジン油の劣化防止装置の制御回路を示し、
ＣＰＵ３０は、オイルキャップスイッチ２９、キースイ
ッチ３１、トルクセンサ３２、オイルポンプ吸引圧セン
サ３３からの入力に基づいて、ＲＯＭ３４に格納したプ
ログラムに従って上述の電磁弁２６を駆動制御し、また
ＲＡＭ３５は第４図に示す油温に対する新油粘度（また
はトルク）の特性データ、異物の含有率の許容相当のオ
イル粘度（またはトルク）データなどの必要なデータを
記憶する。Figure 3 shows the control circuit of the engine oil deterioration prevention device.
The CPU 30 drives and controls the solenoid valve 26 described above according to a program stored in the ROM 34 based on inputs from the oil cap switch 29, key switch 31, torque sensor 32, and oil pump suction pressure sensor 33. Necessary data such as characteristic data of new oil viscosity (or torque) with respect to the oil temperature shown in the figure and oil viscosity (or torque) data corresponding to the permissible foreign matter content are stored.
ここで、上述のＣＰＵ３０はエンジンの油中の異物の含
有率が許容以上に達した時、上述の分離剤供給ライン２
５から分離剤２８を供給制御する制御手段である。Here, when the content of foreign substances in the engine oil reaches a permissible level, the CPU 30 described above controls the separation agent supply line 2
This is a control means for controlling the supply of the separating agent 28 from 5 to 5.
図示実施例は上記の如く構成するものにして、以下作用
を説明する。The illustrated embodiment is constructed as described above, and its operation will be explained below.
シリンダヘッドカバーのオイルキャップを外して新油を
注入する時、上述のオイルキャップスイッチ２９が投入
され、ＣＰＵ３０は・このオイルキャップスイッチ２９
からの信号に基づいてエンジン暖機途中および始動後に
各センサ３２．３３および湯温センサ（図示ぜず）出力
により新油注入時の各種データを学習制御し、この学習
結果をＲＡＭ３５の所定エリアに記憶する。When removing the oil cap on the cylinder head cover and injecting new oil, the oil cap switch 29 mentioned above is turned on, and the CPU 30
Based on the signals from the engine during warm-up and after engine startup, various data at the time of new oil injection are controlled by learning from the outputs of each sensor 32, 33 and a hot water temperature sensor (not shown), and this learning result is stored in a predetermined area of the RAM 35. Remember.
一方、車両走行等によりエンジン油３中の異物の含有率
が順次増加すると、油温に対するオイル粘度の特性は第
４図の実線特性から同図の点線特性へと移行する。On the other hand, as the content of foreign substances in the engine oil 3 gradually increases due to vehicle running, etc., the characteristic of oil viscosity with respect to oil temperature shifts from the solid line characteristic in FIG. 4 to the dotted line characteristic in the same figure.
Ｅ述のエンジン油３中の異物の含有率か許容以上に達し
たか否かの判定は、エンジン油３中への異物含有による
影響が顕著に現れる低油温時、たとえば第４図に示すエ
ンジン始動時に行なう。The determination as to whether the content of foreign matter in the engine oil 3 has reached a permissible level or not, as described in E, is performed at low oil temperatures when the influence of foreign matter contained in the engine oil 3 is noticeable, as shown in FIG. 4, for example. Do this when starting the engine.
すなわち、エンジン油３中への異物含有によりオイル粘
度が高くなると、スタータ駆動トルクおよびオイルポン
プ６による吸引圧が大となるので、ＣＰＵ３０はキース
イッチ３１の投入後において、スタータを駆動した時の
トルクセンサ３２からのトルク信号またはオイルポンプ
吸引圧センサ３３からのプレッシャ信号に基づいて予め
ＲＡ、Ｍ２Ｓに記憶させた異物含有率許容値データとの
比較判定を実行し、異物がエンジン油３中に許容値以上
に含有したと判定した時、例えば、新油に対して約５〜
６％粘度が高くなった時、判定出力をアウトプットする
。That is, when the oil viscosity increases due to the inclusion of foreign matter in the engine oil 3, the starter drive torque and the suction pressure by the oil pump 6 increase. Based on the torque signal from the sensor 32 or the pressure signal from the oil pump suction pressure sensor 33, a comparison is made with foreign matter content tolerance data stored in advance in the RA and M2S, and whether or not foreign matter is allowed in the engine oil 3 is determined. When it is determined that the content exceeds the value, for example, about 5 to 5% for new oil.
When the viscosity increases by 6%, a judgment output is output.
上述の判定出力によりＣＰＵ３０は電磁弁２６を開弁制
御し、サブタンク２７内の分離剤２８を、同電磁弁２６
および分離剤供給ライン２５を介してエンジン潤滑経ｌ
＃Ｉ２４に添加供給する。Based on the above-mentioned judgment output, the CPU 30 controls the opening of the solenoid valve 26 to remove the separating agent 28 in the sub-tank 27 from the solenoid valve 26.
and the engine lubrication line 25 via the separating agent supply line 25.
Add and supply to #I24.
このエンジン潤滑経路２４内のエンジン油３に対して上
述の分離剤２８が添加供給されると、この分離剤２８の
作用により清浄分散剤の異物保持力を小さくして、同分
散剤により異物保持を破壊すると同時に、分離剤２８の
バインダ機能により異物同志を付着凝集させて、異物の
粒径をオイルフィルタ１１でトラップ可能な大きさに成
長させる。When the above-mentioned separating agent 28 is added and supplied to the engine oil 3 in this engine lubricating path 24, the action of this separating agent 28 reduces the foreign matter holding power of the cleaning dispersant, and the foreign matter is retained by the dispersing agent. At the same time, the binder function of the separation agent 28 causes the foreign matter to adhere and coagulate, thereby growing the particle size of the foreign matter to a size that can be trapped by the oil filter 11.
この結果、成長した異物を通常メツシュのオイルフィル
タ１１でトラ・ｌプすることができ、エンジン油３の劣
化を確実に抑制することができる効果がある。As a result, the foreign matter that has grown can be trapped by the oil filter 11, which is usually made of mesh, and there is an effect that deterioration of the engine oil 3 can be reliably suppressed.
加えて、上述のオイルフィルタ１１による異物トラップ
によりエンジン油３の粘度が低下するので、エンジン部
品に対する良好な潤滑を行なうことができる。In addition, the viscosity of the engine oil 3 is reduced by the foreign matter trapped by the oil filter 11, so that good lubrication of engine parts can be achieved.
さらに、上述の分離剤供給ライン２５からの分埴剤供給
箇所を実施例で示す如くリリーフパルプ１０ ’Ｆ ａ
側でオイルフィルタ１１のオイル入日上流側に設定す
ると、オイルポンプ６による撹拌、せん断熱により油温
が約２０〜３０℃上昇するので、分離剤２８による異物
の凝集、成長効果が促進されるうえ、異物の成長による
サクションパイプ７、リリーフバルブ１０の目詰りの懸
念もない。Furthermore, the dispensing agent supplying point from the above-mentioned separating agent supplying line 25 is connected to the relief pulp 10'F a as shown in the example.
If the oil filter 11 is set on the upstream side of the oil filter 11, the oil temperature will rise by about 20 to 30°C due to the agitation and shear heat generated by the oil pump 6, so that the aggregation and growth effect of foreign substances by the separation agent 28 will be promoted. Moreover, there is no concern that the suction pipe 7 and the relief valve 10 will become clogged due to the growth of foreign matter.
なお、上述の分離剤は動弁系やクランクゲース内で蒸発
し、ＰＣＶ （ボジチブ・クランクゲース・ベンチレー
ション）を介して排気される。Note that the above-mentioned separating agent evaporates in the valve train system and crankcase, and is exhausted through a PCV (positive crankcase ventilation).
この発明の構成と、上述の実施例との対応において、
この発明の制御手段は、実施例のＣＰＵ３０に対応する
も、
この発明は、上述の実施例の構成のみに限定されるもの
ではない。Regarding the correspondence between the configuration of the present invention and the embodiments described above, the control means of the present invention corresponds to the CPU 30 of the embodiment, but the invention is not limited to the configuration of the embodiment described above.
図面はこの発明の一実施例を示し、
第１図はエンジン油の劣化防止装置を示す系統図、第２
図は異物の分布状態を示す特性図、第３図は制御回路ブ
ロック図、
第４図は油温に対するオイル粘度の変化を示す特性図、
第５図は清浄分散剤による異物保持構造を示す説明図で
ある。
３・・・エンジン油 ７・・・サクションパイプ
１１・・・オイルフィルタ
２４・・・エンジン潤滑経路
２５・・・分離剤供給ライン
２８・・・分離剤 ３０・・・ＣＰＵ第４図
ｊ由５ｘＬ
第５図
瓢ｅネ々諷−静・見ビ
ー３５＝The drawings show one embodiment of the present invention, and Fig. 1 is a system diagram showing an engine oil deterioration prevention device, and Fig. 2 is a system diagram showing an engine oil deterioration prevention device.
The figure is a characteristic diagram showing the distribution state of foreign matter, Figure 3 is a control circuit block diagram, Figure 4 is a characteristic diagram showing changes in oil viscosity with respect to oil temperature, and Figure 5 is an explanation showing a foreign matter retention structure using a detergent dispersant. It is a diagram. 3...Engine oil 7...Suction pipe 11...Oil filter 24...Engine lubrication path 25...Separation agent supply line 28...Separation agent 30...CPU Fig. 4j 5xL Figure 5 Hyoe Nenetai - Shizuka Mibee 35 =
Claims (1)
ジン潤滑経路に分離剤供給ラインを 接続し、 清浄分散剤が添加されたエンジン油中の異 物の含有率が許容以上に達した時、上記分 離剤供給ラインから、清浄分散剤による異 物保持を破壊して、異物を成長させる分離 剤を供給制御する制御手段を備えた エンジン油の劣化防止装置。(1) A separating agent supply line is connected to the engine lubrication path between the suction pipe and the oil filter, and when the content of foreign substances in the engine oil to which the detergent and dispersant has been added reaches an allowable level, the separating agent is An engine oil deterioration prevention device comprising a control means for controlling the supply of a separating agent that destroys foreign matter retention by a cleaning dispersant and causes foreign matter to grow from a supply line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63324159A JPH02169006A (en) | 1988-12-22 | 1988-12-22 | Engine-oil deterioration preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63324159A JPH02169006A (en) | 1988-12-22 | 1988-12-22 | Engine-oil deterioration preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02169006A true JPH02169006A (en) | 1990-06-29 |
Family
ID=18162778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63324159A Pending JPH02169006A (en) | 1988-12-22 | 1988-12-22 | Engine-oil deterioration preventing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02169006A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010090897A (en) * | 2008-10-08 | 2010-04-22 | Waertsilae Schweiz Ag | Method for lubricating large diesel engine and large diesel engine |
-
1988
- 1988-12-22 JP JP63324159A patent/JPH02169006A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010090897A (en) * | 2008-10-08 | 2010-04-22 | Waertsilae Schweiz Ag | Method for lubricating large diesel engine and large diesel engine |
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