JP2016539210A - 中速ディーゼルエンジン中の銀軸受の保護用潤滑油組成物 - Google Patents
中速ディーゼルエンジン中の銀軸受の保護用潤滑油組成物 Download PDFInfo
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- JP2016539210A JP2016539210A JP2016523981A JP2016523981A JP2016539210A JP 2016539210 A JP2016539210 A JP 2016539210A JP 2016523981 A JP2016523981 A JP 2016523981A JP 2016523981 A JP2016523981 A JP 2016523981A JP 2016539210 A JP2016539210 A JP 2016539210A
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- lubricating oil
- lubricating
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- silver
- oil
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/68—Esters
- C10M129/70—Esters of monocarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
- C10M159/18—Complexes with metals
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/252—Diesel engines
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition
- C10N2060/14—Chemical after-treatment of the constituents of the lubricating composition by boron or a compound containing boron
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Abstract
Description
本発明は、一般に、クランクケース潤滑油組成物及び中速ディーゼルエンジン中の銀軸受の保護方法に関する。
高負荷ディーゼルエンジンは、クランクケース潤滑油を要求し、当該潤滑油は、酸化を安定させる添加剤を含有し及び銀を含む軸受材料に非腐食性である。酸化劣化は望ましくない。なぜなら、エンジン潤滑油の分解を引き起こし得るからである。潤滑油のこの劣化は、粘度の増加、スラッジの形成、及びエンジンデポジットの増加などの派生問題を有する。潤滑油は酸化するので、それは、より酸性になり、及び、軸受材料などのエンジンの金属成分の腐食を引き起こし得る。スラッジなど、酸化を制御するための添加剤の利用に加えて、エンジン運転の間に添加剤それ自身が金属成分に腐食性でないことを確保するよう気を付けなければならない。
US特許番号5,302,304は、アミン、ギ酸、及びC5〜C60カルボン酸の反応生成物、分散剤、金属洗浄剤、及び、硫化オレフィン、脂肪酸又はエステル、硫黄含有複素環式化合物、硫化ヒドロキシ芳香族化合物、ジスルフィド、ジチオカルバメート及びチアジアゾールから選択される0.01−1wt%の有機硫黄化合物、を含有する内燃機関の銀保護潤滑剤組成物を開示する。
US特許番号4,734,211は、基油、無灰分散剤、過塩基性アルカリ土類金属アルキルフェノレート、アルカリ土類金属アルキルスルホネート、過塩基性アルカリ土類金属フェノレート、炭素原子60個までのポリヒドロキシ化合物又は混合物、及び塩素化炭化水素、を含む鉄道ディーゼルエンジン用潤滑油組成物を開示する。ポリヒドロキシ化合物は、グリセロールモノオレエートを含む。当該潤滑油は、海洋及び鉄道ディーゼルエンジンの銀摩耗を低減できる。
US特許番号4,495,088は、内燃機関用のスクシンイミド及びグリセロールのホウ素化脂肪酸エステルを含有する潤滑油を開示する。グリセロールのホウ素化脂肪酸エステルは、スクシンイミド化合物と共に使用すると、潤滑油中の加水分解に対して安定であることがわかった。グリセロールのホウ素化脂肪酸エステルは、ホウ素化グリセロールモノオレエート及びグリセロールジオレエートの混合物である。グリセロールのホウ素化脂肪酸エステル及びスクシンイミドの組合せは、燃料消費を低減することがわかった。
本発明の一形態によると、中速ディーゼルエンジン中の摩擦を減らして銀軸受を保護する潤滑油組成物が提供される。更に、中速ディーゼルエンジン中の銀軸受摩耗と摩擦を低減する方法も提供される。
以下の用語が、明細書中で使用され、そして、他に示されない限り以下の意味を有する。
一般的に言って、ここに提供するものは、
以下を含む中速ディーゼルエンジンクランクケース潤滑油組成物である:
(a)主要量の潤滑粘度の油;及び
(b)0.15〜2.0重量%の銀潤滑性ホウ素化脂肪酸エステル添加剤。
更に提供するものは、
(a)主要量の潤滑粘度の油;及び
(b)0.15〜2.0重量%の銀潤滑性ホウ素化脂肪酸エステル添加剤、
を含む潤滑油組成物で中速ディーゼルエンジンを潤滑することによって、中速ディーゼルエンジン中の銀軸受摩耗と摩擦を低減する方法である。
一形態では、中速ディーゼルエンジンクランクケース潤滑油組成物は、中速ディーゼルエンジン中の銀軸受摩耗と摩擦を減らす。
(A)100〜230℃の温度で、カルボン酸モノグリセリド、グリセロール、及びホウ酸を反応させること;又は
(B)グリセロール及びホウ酸を反応させ、そして、得られる化合物をカルボン酸、カルボン酸の低級アルコールエステル、又はカルボン酸ハロゲン化物と更に反応させること;又は
(C)約240〜280℃の温度で、カルボン酸トリグリセリド、グリセロール、及びホウ酸の混合物を反応させること。
ここに開示された潤滑油組成物は、少なくとも1つの潤滑粘度の油を一般に含む。当業者に公知のいかなる基油も、ここに開示の潤滑粘度の油として使用できる。当該潤滑油組成物を調製するために適切ないくつかの基油は、Mortier et al., “Chemistry and Technology of Lubricants,” 2nd Edition, London, Springer, Chapters 1 and 2 (1996); and A. Sequeria, Jr., “Lubricant Base Oil and Wax Processing,” New York, Marcel Decker, Chapter 6, (1994); and D. V. Brock, Lubrication Engineering, Vol. 43, pages 184-5, (1987)に記載されてきており、それらの全ては参照としてここに取り込まれる。一般に、潤滑油組成物中の基油の量は、潤滑油組成物の合計重量に基づいて、約70〜約99.5wt%でもよい。いくつかの形態では、潤滑油組成物中の基油の量は、潤滑油組成物の合計重量に基づいて、約75〜約99wt%、約80〜約98.5wt%、又は約80〜約98wt%である。
場合により、本発明の潤滑油組成物は、潤滑油組成物のいかなる望ましい特性を改善又は与えることができる添加剤又は調整剤(以後“添加剤”と表す)を少なくとも更に含んでもよい。当業者に公知のいかなる添加剤も、ここに開示の潤滑油組成物中で使用してもよい。いくつかの適切な添加剤は、参照としてここに取り込まれる、Mortier et al., “Chemistry and Technology of Lubricants,” 2nd Edition, London, Springer, (1996); and Leslie R. Rudnick, “Lubricant Additives: Chemistry and Applications,” New York, Marcel Dekker (2003)に記載されてきた。
ここでそれぞれのR9は、独立に、ポリオレフィン誘導基などのヒドロカルビル基である。典型的に、当該ヒドロカルビル基は、ポリイソブテニル基などのアルケニル基である。別の方法で表現すると、R9基は、約40〜約500個の炭素原子を含有でき、及びこれらの原子は脂肪族の形で存在してもよい。R10はアルキレン基であり、一般にエチレン(C2H4)基であり;及びpは1〜11である。スクシンイミド分散剤の例は、例えば、U.S.特許Nos.3,172,892、4,234,435及び6,165,235に記載のものを含む。
過塩基性洗浄剤は、高過塩基性、例えば約250を超えるTBNを有する過塩基性塩、でもよい。一形態では、高過塩基性塩のTBNは、約250〜約450でもよい。
以下の例は、例示的な目的のみを意図しており、本発明の範囲を決して限定しない。
Amoco修正銀ディスク摩耗及び摩擦試験を使用して比較例A〜E及び試験例1〜3の潤滑油添加剤を評価した。Amoco修正銀ディスク摩耗及び摩擦試験として当業者に公知のもので8個の配合(表II)を試験した。この摩耗試験手順は、潤滑油の耐磨耗特性を決定するための実験室試験である。試験機は、the Electromotive Division (EMD) of General Motors, In.によって製造された銀ピンインサート軸受又は鉄道ディーゼルエンジンのメッキで使用されたものと同一の品質及びサイズの4分の1インチ銀ディスク3個と一緒に組立てた2分の1インチ径52100鋼球が配置されているシステムを含む。これらのディスクは、銀耐磨耗特性用に試験されるべき油サンプルを含有するリザーバ中の固定した三角形の位置にある。鋼球は、上に位置し、3個の銀ディスクと接触している。これらの試験を実施する上で、当該球は、レバーアームにかかる適切な重量によって及び特定の圧力で当該3個のディスクに押し付けられながら、回転する。試験結果は、ディスク上の傷跡を調べ及び測定するための低パワー顕微鏡を使用することによって決定される。2.2m以下の摩耗傷跡径は、十分な銀摩耗保護を示すと考えられる。銀ディスク上の鋼球の回転は、23キログラム静止荷重下に分当たり600回転数で30分間続行する。それぞれの油は500Fで試験した。摩擦係数はそれぞれの配合で測定される。
Claims (15)
- 以下を含む中速ディーゼルエンジンクランクケース潤滑油組成物:
(a)主要量の潤滑粘度の油;及び
(b)0.15〜2.0重量%の銀潤滑性ホウ素化脂肪酸エステル添加剤。 - 銀潤滑性ホウ素化脂肪酸エステル添加剤が、ホウ素化モノエステル、ホウ素化ジエステル、又はそれらの混合物を含む群から選択される、請求項1の潤滑油組成物。
- ホウ素化モノエステルが、ホウ素化グリセロールモノオレエートである、請求項2の潤滑油組成物。
- ホウ素化ジエステルが、ホウ素化グリセロールジオレエートである、請求項2の潤滑油組成物。
- 銀潤滑性ホウ素化脂肪酸エステル添加剤が0.15〜1.5重量%で存在する、請求項1の潤滑油組成物。
- 銀潤滑性ホウ素化脂肪酸エステル添加剤が、0.15〜1.0重量%で存在する、請求項1の潤滑油組成物。
- 銀潤滑性ホウ素化脂肪酸エステル添加剤が、0.15〜0.5重量%で存在する、請求項1の潤滑油組成物。
- 銀潤滑性ホウ素化脂肪酸エステル添加剤が、0.15〜0.25重量%で存在する、請求項1の潤滑油組成物。
- 銀潤滑性ホウ素化脂肪酸エステル添加剤が、0.20重量%で存在する、請求項1の潤滑油組成物。
- 銀潤滑性ホウ素化脂肪酸エステルが、0〜3個の二重結合を含有するC12−C22カルボン酸及びグリセロールのエステルである、請求項1の潤滑油組成物。
- カルボン酸が、オレイン、ステアリン、イソステアリン、パルミチン、ミリスチン、パルミトオレイン、リノール、ラウリン、リノレン、及びエレオステアリン酸を含む群から選択される、請求項10の潤滑油組成物。
- カルボン酸がオレイン酸である、請求項11の潤滑油組成物。
- 中速ディーゼルエンジンが、鉄道機関車、海洋タグボート及び定置出力エンジンを含む群から選択される、請求項1の潤滑油組成物。
- 中速ディーゼルエンジンが鉄道機関車エンジンである、請求項13の潤滑油組成物。
- (a)主要量の潤滑粘度の油;及び
(b)0.15〜2.0重量%の銀潤滑性ホウ素化脂肪酸エステル添加剤、
を含む潤滑油組成物で中速ディーゼルエンジンを潤滑することを含む、中速ディーゼルエンジン中の銀軸受摩耗と摩擦を低減する方法。
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- 2014-06-20 KR KR1020167012851A patent/KR102106470B1/ko active IP Right Grant
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WO2015057279A1 (en) | 2015-04-23 |
US9909079B2 (en) | 2018-03-06 |
CN105658779B (zh) | 2019-04-30 |
CA2925712C (en) | 2022-04-26 |
KR20160074556A (ko) | 2016-06-28 |
CA2925712A1 (en) | 2015-04-23 |
SG11201602934RA (en) | 2016-05-30 |
EP3058053A4 (en) | 2016-11-02 |
US20150111798A1 (en) | 2015-04-23 |
EP3058053A1 (en) | 2016-08-24 |
EP3058053B1 (en) | 2019-01-16 |
CN105658779A (zh) | 2016-06-08 |
JP2018090828A (ja) | 2018-06-14 |
KR102106470B1 (ko) | 2020-05-28 |
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