JPS6315895A - Lubrication system of diesel engine - Google Patents
Lubrication system of diesel engineInfo
- Publication number
- JPS6315895A JPS6315895A JP61157893A JP15789386A JPS6315895A JP S6315895 A JPS6315895 A JP S6315895A JP 61157893 A JP61157893 A JP 61157893A JP 15789386 A JP15789386 A JP 15789386A JP S6315895 A JPS6315895 A JP S6315895A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- filter
- weight
- diesel engine
- lubricating 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.)
- Granted
Links
- 238000005461 lubrication Methods 0.000 title claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 51
- 239000010687 lubricating oil Substances 0.000 claims abstract description 31
- 239000007787 solid Substances 0.000 claims abstract description 23
- 239000012535 impurity Substances 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 18
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 12
- 239000011575 calcium Substances 0.000 claims abstract description 11
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 11
- 239000002480 mineral oil Substances 0.000 claims abstract description 11
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000005054 agglomeration Methods 0.000 claims abstract description 5
- 230000002776 aggregation Effects 0.000 claims abstract description 5
- ZMRQTIAUOLVKOX-UHFFFAOYSA-L calcium;diphenoxide Chemical compound [Ca+2].[O-]C1=CC=CC=C1.[O-]C1=CC=CC=C1 ZMRQTIAUOLVKOX-UHFFFAOYSA-L 0.000 claims abstract description 5
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 5
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 claims abstract description 5
- 239000002199 base oil Substances 0.000 claims description 5
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000000314 lubricant Substances 0.000 abstract 2
- 230000002265 prevention Effects 0.000 abstract 1
- 239000004071 soot Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 5
- -1 alkenyl succinimide Chemical compound 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- KZNICNPSHKQLFF-UHFFFAOYSA-N dihydromaleimide Natural products O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 4
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 159000000007 calcium salts Chemical class 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 3
- 229940014800 succinic anhydride Drugs 0.000 description 3
- 229960002317 succinimide Drugs 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000004996 alkyl benzenes Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1 -dodecene Natural products CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 1
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229940059260 amidate Drugs 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 150000001639 boron compounds Chemical class 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 239000010696 ester oil Substances 0.000 description 1
- NPUKDXXFDDZOKR-LLVKDONJSA-N etomidate Chemical compound CCOC(=O)C1=CN=CN1[C@H](C)C1=CC=CC=C1 NPUKDXXFDDZOKR-LLVKDONJSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- AFFLGGQVNFXPEV-UHFFFAOYSA-N n-decene Natural products CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Filtration Of Liquid (AREA)
- Lubricants (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野］
本発明はディーゼルエンジンの潤滑シスチムニ関し、詳
しくはディーゼルエンジン駆動時に不可避的に発生する
煤などの固形不純物を効率よく捕捉、除去することによ
り固形不純物による潤滑上のトラブルを抑制し、更油期
間を延長してメインテナンスの省力化を可能としたディ
ーゼルエンジンの潤滑システムに関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a diesel engine lubrication system, and more specifically, the present invention relates to a lubrication system for a diesel engine, and more specifically, it is capable of efficiently capturing and removing solid impurities such as soot that are inevitably generated when a diesel engine is operated. This invention relates to a diesel engine lubrication system that suppresses lubrication problems caused by impurities, extends the oil change period, and saves labor in maintenance.
［従来の技術および発明が解決しようとする問題点］
ディーゼルエンジンは、ガソリンエンジンに比し燃焼圧
力が高いため燃焼室内が高温となる。また、デ・イーゼ
ルエンジンはその燃焼構造上、ガソリンエンジンに比し
不完全燃焼が起こりやすい。[Prior Art and Problems to be Solved by the Invention] Diesel engines have higher combustion pressure than gasoline engines, so the temperature inside the combustion chamber becomes high. Additionally, due to its combustion structure, de-easel engines are more prone to incomplete combustion than gasoline engines.
したがって、ディーゼルエンジンは潤滑油の酸化分解に
よる煤や燃焼残渣なと油に不溶解の固形不純物を発生す
ることが避けられず、この固形不純物が潤滑系に混入し
て潤滑上トラブルを起こす虞れがある。すなわち、固形
不純物が多量に混入すると、潤滑条件の最も厳しいカム
、 ｊｒ、ロッカーアーム等の動弁系が摩耗し、また潤
滑油の粘度が」二昇して動力損失が大きくなったり、オ
イルフィルターの目詰り現象を惹起するなど潤滑上のト
ラブルが発生する。特に排気ガス再循環装置（ＥＧＲ）
装着のディーゼルエンジンでは、一層多量に煤ヲ発生す
るため、その解決が望まれていた。Therefore, diesel engines inevitably generate insoluble solid impurities such as soot and combustion residue due to oxidative decomposition of lubricating oil, and there is a risk that these solid impurities may enter the lubricating system and cause lubrication problems. There is. In other words, if a large amount of solid impurities are mixed in, the valve train system such as the cam, JR, and rocker arm, which have the most severe lubrication conditions, will wear out, and the viscosity of the lubricating oil will increase, resulting in large power loss, and the oil filter This can cause lubrication problems such as clogging. Especially exhaust gas recirculation (EGR)
The diesel engine installed generates even more soot, so a solution was desired.
そこで従来、固形不純物を微細粒子として油中に分散さ
せるために清浄分散剤を添加することが行なわれている
が、十分満足しうるものではなかった。Conventionally, cleaning and dispersing agents have been added to disperse the solid impurities in the form of fine particles in the oil, but this has not been fully satisfactory.
このため、このように固形不純物を微細粒子として油中
に分散させるという考え方とは全く正反対の考え方に基
づく提案がなされている。すなわち、特開Ｆｌｉ’Ｊ
ＨＪ７．９ｆ）号公報には沈降・堆積が起ｉらない程度
に固形不純物を凝集せしめて粗大化し、これを循環系に
配設したバイパスフィルタで捕捉・除去しようとする着
想の下に、特定の組成からなるディーゼルエンジン用潤
滑油組成物が開示されている。For this reason, proposals have been made based on the completely opposite concept of dispersing solid impurities in oil as fine particles. That is, JP-A-Fli'J
Publication HJ7.9f) is based on the idea of coagulating solid impurities and coarsening them to the extent that no sedimentation or deposition occurs, and capturing and removing them with a bypass filter installed in the circulation system. A lubricating oil composition for a diesel engine is disclosed.
しかしながら、この潤滑油組成物はマグネシウムスルホ
ネートを必須成分としているため、これがある特定の条
件下で機部の水分と反応し、結晶化してフィルタの目詰
りを発生する虞れがあることが判った。However, since this lubricating oil composition contains magnesium sulfonate as an essential component, it has been found that under certain conditions, this may react with moisture in the machine, crystallize, and cause filter clogging. .
本発明者はマグネシウムスルホネートを用いることなく
、しかも従来の問題を解消すべく鋭意研究を重ねた。そ
の結果、特定の組成を有する潤滑油を用いるとともに、
特定の／ヘイパスフィルタをディーゼルエンジン内に配
置することによって、系全体の潤滑効果を大ｌ］に改善
できることを見出し、この知見に基いて本発明を完成し
た。The inventors of the present invention have conducted extensive research in order to solve the conventional problems without using magnesium sulfonate. As a result, while using a lubricating oil with a specific composition,
It was discovered that by placing a specific high-pass filter in a diesel engine, the lubrication effect of the entire system could be greatly improved, and based on this knowledge, the present invention was completed.
［問題点を解決するだめの手段］
すなわち本発明は、固形不純物凝集性を有する潤滑油を
用い、バイパスオイルフィルタとしてスタック式フィル
タを用いることを特徴とするディーゼルエンジンの潤滑
システムを提供するものである。[Means for Solving the Problems] That is, the present invention provides a lubrication system for a diesel engine characterized by using a lubricating oil having solid impurity agglomeration properties and using a stack type filter as a bypass oil filter. be.
本発明において用いる固形不純物凝集性を有する潤滑油
とは、バイパスオイルフィルタとして用いるスタック式
フィルタにより捕捉しうる程度に煤などの固形不純物を
凝集、粗大化することのできる潤滑油であって、具体的
には次の如きものである。The lubricating oil having solid impurity agglomeration properties used in the present invention is a lubricating oil that can aggregate and coarsen solid impurities such as soot to the extent that they can be captured by a stack type filter used as a bypass oil filter, and is specifically Basically, it is as follows.
すなわち、本発明において用いる固形不純物凝集性を有
する潤滑油とは、鉱油および／または合成油からなる基
油に、（ａ）塩基価８０以下のカルシウムスルホネート
１〜８重量％、（ｂ）塩基価１５０以」−のカルシウム
スルホネート０．５〜８Ｊ’重量％。That is, the lubricating oil having solid impurity flocculation properties used in the present invention is a base oil consisting of mineral oil and/or synthetic oil, (a) 1 to 8% by weight of calcium sulfonate with a base number of 80 or less, and (b) a base oil with a base number of 80 or less. 150"-0.5 to 8 J' weight percent of calcium sulfonate.
（ｃ） ｍ基価１００以上のカルシウムフェネート０．
５〜１０重量％、（ｄ）アルケニルコハク酸イミド１〜
１０重量％および（ｅ）ジチオリン酸亜鉛０．５〜５ｊ
重丑％を添加してなる潤滑油組成物である。(c) Calcium phenate with an m-based value of 100 or more.
5 to 10% by weight, (d) alkenyl succinimide 1 to
10% by weight and (e) zinc dithiophosphate 0.5-5j
This is a lubricating oil composition in which % of heavy ox is added.
このような潤滑油組成物の基油として鉱油および／また
は合成油を用いる。ここで鉱油および／または合成油と
しては特に制限はないが、１００°Ｃの動粘度が３〜３
０センチストークス（ｃＳｔ）のものが潤滑性の維持、
向上や動力損失を低減する見地から好ましい。Ａ体的に
は鉱油としてナフテン系鉱油、中間系鉱油、パラフィン
系鉱油の潤滑油留分あるいはこれら鉱油類の分解によっ
て得られる高芳香族成分などを例示することができ、合
成油としてブテン、オクテン、デセン、ドデセン等α−
オレフィンの重合物であるポリオレフィン。Mineral oils and/or synthetic oils are used as base oils for such lubricating oil compositions. There are no particular restrictions on the mineral oil and/or synthetic oil, but the kinematic viscosity at 100°C is 3 to 3.
0 centistokes (cSt) maintains lubricity;
This is preferable from the standpoint of improvement and reduction of power loss. Examples of mineral oils include naphthenic mineral oils, intermediate mineral oils, lubricating oil fractions of paraffinic mineral oils, and highly aromatic components obtained by decomposition of these mineral oils, and synthetic oils such as butene and octene. , decene, dodecene etc. α−
Polyolefin is a polymer of olefin.
長鎖アルキルベンゼン、分枝アルキルベンゼン。Long-chain alkylbenzenes, branched alkylbenzenes.
アルキルナフタリン、エステル油あるいはポリグリコー
ル油などを例示することができる。Examples include alkylnaphthalene, ester oil, and polyglycol oil.
」−述の油は単独であるいは二種類以上を混合して用い
ることができる。The above oils can be used alone or in combination of two or more.
上述の基油に、下記の（ａ）〜（ｅ）成分を添加する。The following components (a) to (e) are added to the above-mentioned base oil.
まず未発明においては（ａ）成分として塩基価８０（ｍ
ｇＫＯＨ／ｇ）以下、好ましくは５〜８０ノカルシウム
スルホネ−１・を用いる。このカルシウムスルホネート
は、常法により製造することができ、例えばアルキル芳
香族を発煙硫酸または亜硫酸ガスでスルホン化した後、
カルシウム塩に変換して得られる。First, in the uninvention, the base number is 80 (m) as the component (a).
gKOH/g) or less, preferably 5 to 80 gKOH/g) or less, preferably 5 to 80 gKOH/g). This calcium sulfonate can be produced by a conventional method, for example, after sulfonating an alkyl aromatic with fuming sulfuric acid or sulfur dioxide gas,
Obtained by converting to calcium salt.
この（ａ）成分は潤滑油組成物の全重量に対し、０．５
〜８重量％、好ましくは２〜６重量％の割合で添加され
る。This component (a) is 0.5% based on the total weight of the lubricating oil composition.
It is added in a proportion of ~8% by weight, preferably 2-6% by weight.
ここで（ａ）成分の添加量が０．５重量％未満であると
清浄性が十分でなく、一方８重量％を超えると、分散性
が良好となるため、好ましくない。If the amount of component (a) added is less than 0.5% by weight, the cleanliness will not be sufficient, while if it exceeds 8% by weight, the dispersibility will be poor, which is not preferable.
次に未発明においては、（ｂ）成分として塩基価１５０
以上、好ましくは２００以上のカルシウムスルホネート
を用いる。Next, in the uninvention, as component (b) a base value of 150
Above, preferably 200 or more calcium sulfonate is used.
本発明においては、このように塩基価８０以下のカルシ
ウムスルホネートと塩基価１５０以上のカルシウムスル
ホネートを併用する。ここで両者を併用せずに一方のカ
ルシウムスルホネートを用いても固形不純物の分散性が
大きく好ましくない。In the present invention, a calcium sulfonate having a base number of 80 or less and a calcium sulfonate having a base number of 150 or more are used together. Here, even if one calcium sulfonate is used without using both together, the dispersibility of solid impurities is large, which is not preferable.
本発明において上記（ｂ）成分は潤滑油組成物の全重量
に対し、Ｑ、５〜８重量％、好ましくは、２〜６重量％
の割合で添加される。In the present invention, the component (b) is Q, 5 to 8% by weight, preferably 2 to 6% by weight, based on the total weight of the lubricating oil composition.
It is added at a rate of
ここで（ｂ）成分の添加量が０．５重量％未満であると
清浄性が不足し、一方８重量％を超えるとエンジン燃焼
室にデポジットを生ずるので好ましくない。If the amount of component (b) added is less than 0.5% by weight, cleanliness will be insufficient, while if it exceeds 8% by weight, deposits will be formed in the combustion chamber of the engine, which is not preferable.
また本発明においては（ｃ）成分として塩基価１００以
上のカルシウムフェネートを用いる。ここで塩基価が１
００未満のものであると、固形物が細かく分散して本目
的を達成できないので好ましくない。Further, in the present invention, calcium phenate having a base value of 100 or more is used as the component (c). Here the base number is 1
If it is less than 0.00, the solids will be finely dispersed, making it impossible to achieve the objective.
このカルシウムフェネートは常法により製造することが
でき、例えばアルキルフェノールまたは硫化アルキルフ
ェノールのカルシウム塩もしくはこのカルシウム塩を炭
酸化することにより得ることができる。This calcium phenate can be produced by a conventional method, for example, by carbonating a calcium salt of an alkylphenol or a sulfurized alkylphenol, or the calcium salt.
なお、上記各成分の塩基価の調整は、原料の種類、使用
割合、炭酸化の度合等を適宜選定することにより行なえ
ばよい。The base number of each of the above components may be adjusted by appropriately selecting the type of raw material, the proportion used, the degree of carbonation, etc.
この（ｃ）成分は潤滑油組成物の全量に対し０．５〜１
０重量％、好ましくは１〜５重量％の割合で添加される
。This (c) component is 0.5 to 1% of the total amount of the lubricating oil composition.
It is added in a proportion of 0% by weight, preferably 1 to 5% by weight.
ここで（ｃ）成分の添加量が０．５重量％未満であると
添加効果がなく、一方１０重量％を超えると、固形物の
分散により、結果的に動弁系の摩耗を促進するため好ま
しくない。If the amount of component (c) added is less than 0.5% by weight, there will be no addition effect, while if it exceeds 10% by weight, the dispersion of solids will result in accelerated wear of the valve train. Undesirable.
さらに本発明においては（ｄ）成分としてアルケニルコ
ハク酸イミドを用いる。このアルケニルコハク酸イミド
としては、例えば分子量３００〜５０００のポリオレフ
ィンを無水マレイン酸と反応させてモノアルケニル無水
コハク酸とし、このモノアルケニル無水コハク酸にポリ
アミンを反応させてイミド化したものや得られたイミド
に芳香族ポリカルボン酸を作用させて、残るアミン基の
一部をアミド化したもの等が用いられる。さらに、（ｄ
）成分としてはアルケニルコハク酸イミドのホウ素化合
物誘導体を用いることもできる。Further, in the present invention, alkenylsuccinimide is used as component (d). Examples of the alkenyl succinimide include those obtained by reacting a polyolefin with a molecular weight of 300 to 5,000 with maleic anhydride to obtain monoalkenyl succinic anhydride, and reacting this monoalkenyl succinic anhydride with a polyamine to imidize it. An imide prepared by reacting an aromatic polycarboxylic acid to amidate a portion of the remaining amine groups is used. Furthermore, (d
) A boron compound derivative of alkenylsuccinimide can also be used.
この（ｄ）成分は潤滑油組成物の全量に対し、１〜１０
重量％、好ましくは２〜６重量％の割合で添加される。The amount of component (d) is 1 to 10% based on the total amount of the lubricating oil composition.
It is added in a proportion by weight, preferably 2 to 6% by weight.
ここで（ｄ）成分の添加量が１重量％未満であると添加
効果がなく、一方ｌＯ重量％を超えると固形不純物の分
散性が大きくなるため好ましくない。Here, if the amount of component (d) added is less than 1% by weight, there is no effect of the addition, while if it exceeds 10% by weight, the dispersibility of solid impurities increases, which is not preferable.
最後に本発明においては（ｅ）成分としてジチオリン酸
亜鉛を用いる。Finally, in the present invention, zinc dithiophosphate is used as component (e).
ここでジチオリン酸亜鉛は下記一般式
（式中、Ｒ１−Ｒ４はアルキル基またはアリール基を示
し、Ｒ１−Ｒ４は同一であっても異なるものであっても
よい。）
で表わされるものである。式中のアルキル基としては特
に制限はないが、炭素数３〜１２のものが好ましい。ま
た、アリール基についても制限はなく、置換アリール基
も含まれ、この場合の置換基はアルキル基が好ましい。Here, zinc dithiophosphate is represented by the following general formula (wherein R1-R4 represent an alkyl group or an aryl group, and R1-R4 may be the same or different). The alkyl group in the formula is not particularly limited, but preferably has 3 to 12 carbon atoms. Further, there are no restrictions on the aryl group, and substituted aryl groups are also included, and the substituent in this case is preferably an alkyl group.
特にアリール基を有するものを全チオリン酸亜鉛の１７
２以上含むものが好ましい。Particularly, those having an aryl group are
Preferably, it contains two or more.
この（ｅ）成分は潤滑油組成物の全量に対し、０．５〜
５重量％、好ましくは１〜４重量％の割合で添加される
。ここで（ｅ）成分の添加量が０．５重量％未満である
と耐摩耗性が不充分である。一方５重量％を超えて配合
しても配合量に見合うだけの効果を得ることはできない
。This (e) component is 0.5 to 0.5 to
It is added in a proportion of 5% by weight, preferably 1 to 4% by weight. Here, if the amount of component (e) added is less than 0.5% by weight, the wear resistance will be insufficient. On the other hand, even if it is added in an amount exceeding 5% by weight, the effect commensurate with the amount added cannot be obtained.
ニク参１卜４夛Ｊ＃よシ：しＮ−コク：１目ｉ」ＲＪｌ
［１１二組；ｈ髪工邊に１］ｉ辷；土：」販ジ；−乞＝
多〉：本発明において用いる潤滑油組成物は−１−記成
分からなり、いずれを欠いても本発明の目的を達成する
ことはできない。Nikusan 1 卜 4 夛J #Yoshi: ShiN-Koku: 1st i” RJl
[112 sets; h hair workshop 1]
Poly>: The lubricating oil composition used in the present invention consists of the components -1-, and the object of the present invention cannot be achieved without any of them.
なお、本発明においてはさらに必要に応じてその他の清
浄分散剤、ポリイソブチレン、ポリメタアクリレート等
の粘度指数向ト剤、シリコーン７「１１等の消泡剤をは
しめ油性剤、極圧剤、腐食防止剤などの各種添加剤を適
宜配合することもできる。In addition, in the present invention, if necessary, other cleaning and dispersing agents, viscosity index improvers such as polyisobutylene and polymethacrylate, antifoaming agents such as silicone 7 and 11 are added, and oil-based agents, extreme pressure agents, and corrosive agents are added. Various additives such as inhibitors can also be blended as appropriate.
斜上の如き潤滑油組成物は１００°Ｃにおける動粘度が
３〜３０ｃＳｔであり、塩基価が３〜２０のものである
。A lubricating oil composition such as Slanted has a kinematic viscosity of 3 to 30 cSt at 100°C and a base number of 3 to 20.
本発明においては潤滑油として叙−１−の如き組成を４
１し、固形不純物凝集性を有する潤滑油を用いるととも
に、バイパスオイルフィルタを備え、このバイパスオイ
ルフィルタとしてスタンク式フィルタを用いることが必
要である。すなわち、叙上の如き潤滑油を用いることに
より清浄性を確保しつつ煤を凝集、粗大化できるが、こ
れのみでは不充分であって以ドに示すスタンク式のバイ
パスオイルフィルタを用いることによりろ過捕捉効率を
最大ｐ４に発揮して油中の煤量を低減し「１的を達成で
きるわけである。第１図は本発明の潤滑システムの概念
図である。In the present invention, as a lubricating oil, a composition as shown in Table 1-1 is used.
1. It is necessary to use a lubricating oil that has solid impurity agglomeration properties, as well as to provide a bypass oil filter, and use a tank type filter as the bypass oil filter. In other words, by using lubricating oil as described above, soot can be coagulated and coarsened while ensuring cleanliness, but this alone is insufficient, and filtration can be achieved by using the tank-type bypass oil filter shown below. By exhibiting the trapping efficiency to the maximum p4 and reducing the amount of soot in the oil, it is possible to achieve the first objective. Fig. 1 is a conceptual diagram of the lubrication system of the present invention.
すなわちバイパスオイルフィルタ１としてスタック式の
構造のものを用いる。スタック式フィルタとは積層式と
も称され、ろ材を多数枚積み重ねて作られるもので第２
図に例示した構造を有するものである。第２図に例示し
たスタンク式フィルタは、ろ材を６０°ずっ変位させ多
数枚積層したものを示している。That is, a stack type structure is used as the bypass oil filter 1. A stack type filter is also called a laminated type, and is made by stacking many filter media.
It has the structure illustrated in the figure. The Stank type filter illustrated in FIG. 2 shows a structure in which a large number of filter media are stacked with the filter media shifted by 60°.
本発明はスタック式フィルタを用いることによって達成
できるが、さらに以ドの要件を満たすフィルタであるこ
とが有利である。すなわちろ材の気孔軽が７〜２５μｍ
、特に々ｆましくは１０〜２０μ２ｍ、ろ材の厚さが０
．６〜１．８ｍｍ 、特に好ましくは１．０〜１．５ｍ
ｍのものである。Although the present invention can be achieved by using a stacked filter, it is advantageous if the filter further satisfies the following requirements. In other words, the pore size of the filter medium is 7 to 25 μm.
, especially preferably 10 to 20μ2m, and the thickness of the filter medium is 0
．． 6-1.8mm, particularly preferably 1.0-1.5m
It belongs to m.
なお気孔径の径は封Ｓ Ｂ−８３５８による値である。Note that the pore diameter is a value based on Seal S B-8358.
ここで気孔径が７μｍ未満のものであると早期にフィル
タ目詰りを生じバイパスオイルフィルタｌが作動しなく
なり、−力２５ｐｍを超えると凝集したろ材の厚さが１
．８ｍｍを超えるとフィルタ目詰りを生じ、逆にろ材の
Ｊ７さか０．６ｍｍ未満であるとろ材強度が不充分であ
り煤捕集効果も低下するため好ましくない。If the pore size is less than 7 μm, the filter will become clogged early and the bypass oil filter will not work, and if the force exceeds 25 pm, the thickness of the aggregated filter material will be 1
．． If it exceeds 8 mm, the filter will become clogged, and if the J7 height of the filter medium is less than 0.6 mm, the strength of the filter medium will be insufficient and the soot-trapping effect will be reduced, which is not preferable.
さらにバイパスオイルフィルタ１に流れる油量の制御を
するオリフィス２の径が０．６ｍｒａ未満であると煤捕
集効果が低く、−・方２．Ｏｍｍを超えるとフィルタ［
１詰りを生ずるため好ましくない。すなわち、オリフィ
ス２の径が０．６〜２．０ｍｍであれば、さらに優れた
潤滑が可能である。Furthermore, if the diameter of the orifice 2 that controls the amount of oil flowing into the bypass oil filter 1 is less than 0.6 mra, the soot trapping effect will be low. If it exceeds Omm, the filter [
This is not preferable because it causes clogging. That is, if the diameter of the orifice 2 is 0.6 to 2.0 mm, even better lubrication is possible.
なお図中符号３はフルフローオイルフィルタ、符号４は
油槽、符号５は送油ポンプである。In the figure, reference numeral 3 is a full-flow oil filter, reference numeral 4 is an oil tank, and reference numeral 5 is an oil pump.
物は送油ポンプ５を用いてフルフローオイルフィルタ３
を通過してディーゼルエンジン各部６へ送油された後、
油槽４へ戻る。この回路でフルフローオイルフィルタ３
を通過した潤滑油組成物の一部はバイパスオイルフィル
タ１を通過し、その際煤等の固形物が捕捉されて油槽４
へ戻る。このときバイパスオイルフィルタ１のフィルタ
エレメントを通過するｌｒｈ Ｍを調節するためにオリ
フィス２が設けられている。The item is full flow oil filter 3 using oil feed pump 5.
After passing through and being sent to each part 6 of the diesel engine,
Return to oil tank 4. Full flow oil filter 3 with this circuit
A part of the lubricating oil composition that has passed through passes through a bypass oil filter 1, where solid matter such as soot is captured and sent to an oil tank 4.
Return to At this time, an orifice 2 is provided to adjust the lrh M passing through the filter element of the bypass oil filter 1.
［発明の効果］
本発明によればディーゼルエンジン駆動中に不ｆｆｆ避
的に生ずる煤などの固形解不純物を凝集、粗大化し、こ
れを特定のバイパスオイルフィルタを用いることにより
効率よく捕捉、除去して油中の煤量を低減することがで
きる。[Effects of the Invention] According to the present invention, solid dissolved impurities such as soot that are unavoidably generated during diesel engine operation are aggregated and coarsened, and this can be efficiently captured and removed by using a specific bypass oil filter. can reduce the amount of soot in the oil.
したがって本発明によれば潤滑系へ煤などの固形不純物
が混入することを防１１ニすることができるため、カム
□、弁等の動弁系の摩耗を抑制できるとともに、潤滑油
自体の劣化も抑制できる。その結果、更油期間を延長す
ることができ、メインテナンスの省力化が可能となるな
どの実益を有する。Therefore, according to the present invention, since it is possible to prevent solid impurities such as soot from entering the lubricating system, it is possible to suppress wear of the valve train such as cams and valves, and to prevent deterioration of the lubricating oil itself. It can be suppressed. As a result, there are practical benefits such as being able to extend the oil change period and saving labor in maintenance.
それ１々、本発明はディーゼルエンジン、特に高過給デ
ィーゼルエンジン、 Ｅ Ｇ Ｒ”Ｊ着のディーゼルエ
ンジンの潤滑システムとして有効に利用することができ
る。In each case, the present invention can be effectively utilized as a lubrication system for a diesel engine, particularly a highly supercharged diesel engine, an EGR''J type diesel engine.
［実施例］ 次に本発明を実施例により詳しく説明する。[Example] Next, the present invention will be explained in detail with reference to examples.
実施例１〜５および比較例１〜６，８．９第１表に示す
構造のバイパスオイルフィルタを有する市販ディーゼル
エンジンおよび第１ 表ニ示す潤滑油成分からなるディ
ーゼルエンジン用潤滑油組成物を用いて耐久実験し、エ
ンジン油中の煤の量を測定して評価した。結果を第１表
に示す。Examples 1 to 5 and Comparative Examples 1 to 6, 8.9 Using a commercially available diesel engine having a bypass oil filter having the structure shown in Table 1 and a diesel engine lubricating oil composition comprising the lubricating oil components shown in Table 1, An evaluation was made by conducting durability tests and measuring the amount of soot in the engine oil. The results are shown in Table 1.
また、実施例１．比較例８〜９における潤滑油中の不溶
分（ＡＳＴＭ Ｄ ８９３）の量の経時変化を第３図に
示す。なお、使用したエンジンの仕様および実験条件は
下記の通りである。Also, Example 1. FIG. 3 shows changes over time in the amount of insoluble matter (ASTM D 893) in the lubricating oils in Comparative Examples 8 and 9. The specifications of the engine used and the experimental conditions are as follows.
使用エンジン
直列６気筒水冷タ一ボチヤージヤー付エンジン直噴式
％式％
圧Ｈ何＝→：Ｐ”ｒ／−３−＝ｓ：ｅ：ケＵ−＝ｓ＝ｅ
ｆ−二一タイニータイ運１１５０ＰＳ −ＯＰＳ／３５
ｅｃ−３ｓｅｃ サイクル運転油 温 １０
５ °Ｃ
燃 料 軽油（２号） Ｓ分＝ ０．４５％ｗｔ実
験時間 １０００時間
比較例７
実施例１においてバイパスオイルフィルタを有しない市
販ディーゼルエンジンを用いたこと以外は実施例１と同
様に実験した。結果を第１表および第３図に示す。Engine used: In-line 6-cylinder water-cooled turbocharged engine with direct injection % Pressure H=→:P”r/-3-=s:e:Ke U-=s=e
f-21 Tiny Thai Luck 1150PS -OPS/35
ec-3sec cycle operation oil temperature 10
5 °C Fuel Light oil (No. 2) S content = 0.45% wt Experiment time 1000 hours Comparative Example 7 Same as Example 1 except that a commercially available diesel engine without a bypass oil filter was used in Example 1. I experimented. The results are shown in Table 1 and Figure 3.
月 Ｗ： Ｑ山
ＳＡＥ ２０番１００℃で８ｃＳｔ のパラフィン系鉱
油よ２ ポリブテニルコハク酸イミド
分子量約１０００のポリブテニル基を有する無水コハク
酸とテトラエチレンペンタミンとの反応で得られるもの
第３ ジチオリン酸亜鉛
Ｌｕｂｒｉｚｏｌ １３７０ （日本ルブリゾール
■製）第４ 粘度指数向上剤
分子量約５万のエチレン−プロピレン共重合体杓ノヘイ
パスオイルフィルタの構造
木Ｇ １０００時間後の使用エンジン油中の不溶分（
ＡＳＴ１４ Ｄ ８９３）ノ量Month W: Qyama SAE No. 20 Paraffinic mineral oil of 8 cSt at 100℃ 2 Polybutenyl succinimide Obtained by the reaction of succinic anhydride having a polybutenyl group with a molecular weight of about 1000 and tetraethylenepentamine 3 Dithioline Zinc acid Lubrizol 1370 (manufactured by Nippon Lubrizol ■) No. 4 Viscosity index improver Ethylene-propylene copolymer with a molecular weight of approximately 50,000 Ladle Pass oil filter structure tree G Insoluble matter in used engine oil after 1000 hours (
AST14 D 893) amount
ｆ５１図は本発明の潤滑システムの概念図、第２図は本
発明で用いるスタック式フィルタの一例を示す斜視図、
第３図は本発明の実施例工および比較例７〜９における
潤滑油中の不溶分の鼠の経時変化を示すグラフである。
１・・・バイパスオイルフィルタ。
２・・・オリフィス。
３・・・フルフローオイルフィルタ。
４・・・油槽、 ５・・・送油ポンプ。
６・・・ディーゼルエンジン各部
特許出願人 日立建機ダ株式会社
同 出光興産株式会社
同 株式会社 上屋製作所
同 いすぐ自動車株式会社
第１図
第２図
手続補正書印釦
昭和６１年９月２ 日Figure f51 is a conceptual diagram of the lubrication system of the present invention, Figure 2 is a perspective view showing an example of a stack type filter used in the present invention,
FIG. 3 is a graph showing changes over time in the insoluble content in lubricating oils in Examples of the present invention and Comparative Examples 7 to 9. 1...Bypass oil filter. 2... Orifice. 3...Full flow oil filter. 4...Oil tank, 5...Oil pump. 6... Patent applicants for various parts of diesel engines: Hitachi Construction Machinery Co., Ltd. Idemitsu Kosan Co., Ltd. Ueya Seisakusho Co., Ltd. Isugu Jidosha Co., Ltd. Figure 1 Figure 2 Procedural Amendment Form Seal button September 2, 1986 Day
Claims (1)
オイルフィルタとしてスタック式フィルタを用いること
を特徴とするディーゼルエンジンの潤滑システム。 ２、固形不純物凝集性を有する潤滑油が、鉱油および／
または合成油からなる基油に、（ａ）塩基価８０以下の
カルシウムスルホネート１〜８重量％、（ｂ）塩基価１
５０以上のカルシウムスルホネート０．５〜８重量％、
（ｃ）塩基価１００以上のカルシウムフェネート０．５
〜１０重量％、（ｄ）アルケニルコハク酸イミド１〜１
０重量％および（ｅ）ジチオリン酸亜鉛０．５〜５重量
％を添加してなる潤滑油組成物である特許請求の範囲第
１項記載の潤滑システム。[Scope of Claims] 1. A lubrication system for a diesel engine, characterized in that it uses a lubricating oil that aggregates solid impurities and uses a stack filter as a bypass oil filter. 2. The lubricating oil having solid impurity agglomeration property is mineral oil and/or
Or to a base oil consisting of synthetic oil, (a) 1 to 8% by weight of calcium sulfonate with a base number of 80 or less, (b) a base number of 1
50 or more calcium sulfonate 0.5-8% by weight,
(c) Calcium phenate with a base number of 100 or more 0.5
~10% by weight, (d) alkenylsuccinimide 1-1
The lubricating system according to claim 1, which is a lubricating oil composition comprising: 0% by weight and (e) 0.5 to 5% by weight of zinc dithiophosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157893A JPH0660317B2 (en) | 1986-07-07 | 1986-07-07 | Diesel engine lubrication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157893A JPH0660317B2 (en) | 1986-07-07 | 1986-07-07 | Diesel engine lubrication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6315895A true JPS6315895A (en) | 1988-01-22 |
| JPH0660317B2 JPH0660317B2 (en) | 1994-08-10 |
Family
ID=15659720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61157893A Expired - Lifetime JPH0660317B2 (en) | 1986-07-07 | 1986-07-07 | Diesel engine lubrication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0660317B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6245719B1 (en) | 1998-03-09 | 2001-06-12 | Tonen Corporation | Lubricant oil composition |
| US6638897B2 (en) | 1998-07-17 | 2003-10-28 | Tonengeneral Sekiyu K.K. | Lubricant oil composition for internal combustion engines (law859) |
| JP2015183152A (en) * | 2014-03-26 | 2015-10-22 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricant composition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588798A (en) * | 1981-07-01 | 1983-01-18 | シエブロン・リサ−チ・コンパニ− | Lubricant oil blend |
| JPS5827798A (en) * | 1981-08-03 | 1983-02-18 | シエブロン・リサ−チ・コンパニ− | Lubricant oil |
| JPS606790A (en) * | 1983-06-27 | 1985-01-14 | Idemitsu Kosan Co Ltd | Lubricating oil composition for diesel engine |
-
1986
- 1986-07-07 JP JP61157893A patent/JPH0660317B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588798A (en) * | 1981-07-01 | 1983-01-18 | シエブロン・リサ−チ・コンパニ− | Lubricant oil blend |
| JPS5827798A (en) * | 1981-08-03 | 1983-02-18 | シエブロン・リサ−チ・コンパニ− | Lubricant oil |
| JPS606790A (en) * | 1983-06-27 | 1985-01-14 | Idemitsu Kosan Co Ltd | Lubricating oil composition for diesel engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6245719B1 (en) | 1998-03-09 | 2001-06-12 | Tonen Corporation | Lubricant oil composition |
| US6638897B2 (en) | 1998-07-17 | 2003-10-28 | Tonengeneral Sekiyu K.K. | Lubricant oil composition for internal combustion engines (law859) |
| JP2015183152A (en) * | 2014-03-26 | 2015-10-22 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricant composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0660317B2 (en) | 1994-08-10 |
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