JP5483330B2 - クロスヘッド型ディーゼル機関用システム潤滑油組成物 - Google Patents
クロスヘッド型ディーゼル機関用システム潤滑油組成物 Download PDFInfo
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- JP5483330B2 JP5483330B2 JP2009292337A JP2009292337A JP5483330B2 JP 5483330 B2 JP5483330 B2 JP 5483330B2 JP 2009292337 A JP2009292337 A JP 2009292337A JP 2009292337 A JP2009292337 A JP 2009292337A JP 5483330 B2 JP5483330 B2 JP 5483330B2
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- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 2
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- 125000001204 arachidyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- 150000002019 disulfides Chemical class 0.000 description 1
- NAGJZTKCGNOGPW-UHFFFAOYSA-N dithiophosphoric acid Chemical compound OP(O)(S)=S NAGJZTKCGNOGPW-UHFFFAOYSA-N 0.000 description 1
- LZJUZSYHFSVIGJ-UHFFFAOYSA-N ditridecyl hexanedioate Chemical compound CCCCCCCCCCCCCOC(=O)CCCCC(=O)OCCCCCCCCCCCCC LZJUZSYHFSVIGJ-UHFFFAOYSA-N 0.000 description 1
- FVBSDVQDRFRKRF-UHFFFAOYSA-N ditridecyl pentanedioate Chemical compound CCCCCCCCCCCCCOC(=O)CCCC(=O)OCCCCCCCCCCCCC FVBSDVQDRFRKRF-UHFFFAOYSA-N 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000002818 heptacosyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 125000002463 lignoceryl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000004668 long chain fatty acids Chemical class 0.000 description 1
- 125000002960 margaryl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical class COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- KHYKFSXXGRUKRE-UHFFFAOYSA-J molybdenum(4+) tetracarbamodithioate Chemical compound C(N)([S-])=S.[Mo+4].C(N)([S-])=S.C(N)([S-])=S.C(N)([S-])=S KHYKFSXXGRUKRE-UHFFFAOYSA-J 0.000 description 1
- 125000002819 montanyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001802 myricyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000002465 nonacosyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001196 nonadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 125000002460 pentacosyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- CYQAYERJWZKYML-UHFFFAOYSA-N phosphorus pentasulfide Chemical compound S1P(S2)(=S)SP3(=S)SP1(=S)SP2(=S)S3 CYQAYERJWZKYML-UHFFFAOYSA-N 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229940096992 potassium oleate Drugs 0.000 description 1
- MLICVSDCCDDWMD-KVVVOXFISA-M potassium;(z)-octadec-9-enoate Chemical compound [K+].CCCCCCCC\C=C/CCCCCCCC([O-])=O MLICVSDCCDDWMD-KVVVOXFISA-M 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229940083082 pyrimidine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 150000003230 pyrimidines Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003443 succinic acid derivatives Chemical class 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003871 sulfonates Chemical class 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
- 238000010998 test method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000003580 thiophosphoric acid esters Chemical class 0.000 description 1
- 125000002469 tricosyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 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 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- MBBWTVUFIXOUBE-UHFFFAOYSA-L zinc;dicarbamodithioate Chemical compound [Zn+2].NC([S-])=S.NC([S-])=S MBBWTVUFIXOUBE-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Lubricants (AREA)
Description
一方、システム油は、通常のディーゼルエンジン油とは異なり燃焼ガスと接触することはなく、タンクに貯蔵され、循環ポンプにより、軸受部等に供給されて潤滑・冷却を行う潤滑油で、シリンダー油と異なって長期間にわたって使用されるため、適正な粘度を長期間維持することが求められる(例えば、特許文献1)。ところが、舶用クロスヘッド型機関においては、シリンダー油のドリップ油が混入することによりシステム油の粘度が上昇するという問題があり、粘度上昇を如何に抑制するかが長年の課題となっていた。特に、最近の環境問題の高まりにより、粘度上昇に伴う軸受部での摩擦損失の増大による燃費の悪化や、ピストン冷却面における熱交換の効率の低下を防ぐことが重要視されるようになってきた。
具体的には、せん断安定性は優れているが、熱により分解しやすい特性がある、オレフィン共重合体を潤滑油基油に配合することにより、ピストン冷却面でポリマーが分解してシステム油の粘度を低下させ、シリンダードリップ油混合による粘度上昇を相殺し、燃費の悪化を抑制することができる。
本発明のクロスヘッド型ディーゼル機関用システム潤滑油組成物(以下、本発明の潤滑油組成物という。)において用いる潤滑油基油には特に制限はなく、鉱油、合成油またはこれらの混合物を使用することができる。
なお、本発明でいう粘度指数とは、JIS K 2283−1993に準拠して測定された粘度指数を意味する。
なお、ここでいう「PSSI」とは、ASTM D 6022−01(Standard Practice for Calculation of Permanent Shear Stability Index)に準拠し、ASTM D 6278−02(Test Metohd for Shear Stability of Polymer Containing Fluids Using a European Diesel Injector Apparatus)により測定されたデータに基づき計算されたポリマーの永久せん断安定性指数(Permanent Shear Stability Index)を意味する。
なお、エチレン・α−オレフィン共重合体またはその水素化物は、通常10〜90質量%の鉱油で希釈された状態で提供される。
上記アルカリ土類金属としては、例えば、マグネシウム、バリウム、カルシウムが挙げられ、マグネシウム又はカルシウムが好ましく、カルシウムが特に好ましい。
M1、M2及びM3は、それぞれアルカリ土類金属、好ましくはカルシウム及び/又はマグネシウムを示し、x、y、zはそれぞれ独立に1〜3の整数を示し、mは0、1又は2、nは0又は1を示す。
なお、ここでいう塩基価とは、JIS K2501「石油製品及び潤滑油−中和価試験法」の7.に準拠して測定される過塩素酸法による塩基価を意味する。
なお、ここでいう金属比とは、(B)金属系清浄剤における金属元素の価数×金属元素含有量(モル%)/せっけん基含有量(モル%)で表され、金属元素とは、カルシウム、マグネシウム等のアルカリ土類金属、せっけん基とはフェノール基を意味する。
無灰分散剤としては、潤滑油に用いられる任意の無灰分散剤が使用でき、例えば、炭素数40〜400、好ましくは60〜350の直鎖若しくは分枝状のアルキル基又はアルケニル基を分子中に少なくとも1個有するコハク酸イミド、ベンジルアミン、ポリアミンまたはこれらの変性品等が挙げられる。
アルキル基又はアルケニル基は、直鎖状でも分枝状でもよいが、好ましいものとしては、例えば、プロピレン、1−ブテン、イソブチレン等のオレフィンのオリゴマーやエチレンとプロピレンとのコオリゴマーから誘導される分枝状アルキル基や分枝状アルケニル基等が挙げられる。
本発明の潤滑油組成物において、酸化防止剤を使用する場合、その含有量は、組成物全量基準で、0.05〜5質量%が好ましい。
本発明の潤滑油組成物において、極圧剤を使用する場合、その含有量は、組成物全量基準で、0.05〜5質量%が好ましい。
表1に示す本発明の潤滑油組成物(実施例1〜9)、比較用の潤滑油組成物(比較例1〜3)をそれぞれ調製した。得られた組成物について、ホットチューブ試験を実施し、その結果を同じく表1に示した。なお、実施例1〜7および比較例1、3については添加剤を加えた状態での組成物の100℃における動粘度が11.5mm2/sとなるよう、ポリマー化合物の添加量および基油の配合割合を調整した。
基油A:100ニュートラル(動粘度@100℃:4.42mm2/s)
基油B:250ニュートラル(動粘度@100℃:7.12mm2/s)
基油C:500ニュートラル(動粘度@100℃:10.8mm2/s)
基油D:150ブライトストック(動粘度@100℃:31.7mm2/s)
(添加剤)
(1)ポリマー化合物
A−1:エチレン・プロピレン共重合体(PSSI=25)
PMA:ポリメタクリレート(PSSI=5)
(2)ポリマー化合物以外の添加剤
B−1:金属系清浄剤(過塩基性カルシウムフェネート:塩基価255mgKOH/g、Ca分9.25質量%)
B−2:金属系清浄剤(過塩基性カルシウムサリシレート:塩基価170mgKOH/g、Ca分6.2質量%)
ジアルキルジチオリン酸亜鉛:第1級ジアルキルジチオリン酸亜鉛(アルキル=2−エチルヘキシル、P分7.4質量%)
防錆剤:中性カルシウムスルホネート(塩基価20mgKOH/g、Ca分2.35質量%)
無灰分散剤:アルケニルコハク酸イミド(ビスタイプ、窒素含量:1質量%)
その他添加剤(流動点降下剤、消泡剤、酸化防止剤、極圧剤等)
JPI−5S−55−99に準拠して実施した。試験温度を250℃とし、各ガラスチューブより流出するオイルを回収して、その粘度をCannon社製自動キャピラリー粘度計(CACV)により測定する。6種の試料油につき、次の2つのケースについて試験を行った。
A)新油100%
B)新油85%に、VLCC(中東〜日本)に搭載されたクロスヘッド型ディーゼル機関より採取したシリンダードリップ油15質量%を混合したもの。シリンダードリップ油の性状は、動粘度(100℃):28.1mm2/s、酸価:7.5mgKOH/g、塩基価(過塩素酸法):24.1mgKOH/g、ペンタン不溶分(A法):6.0質量%である。
Claims (3)
- 鉱油および/または合成油を基油とし、(A)エチレン・α−オレフィン共重合体またはその水素化物を2〜15質量%含有して成る、塩基価が4〜20mgKOH/g、100℃の動粘度が7.5〜12.5mm2/sであることを特徴とするクロスヘッド型ディーゼル機関用システム潤滑油組成物。
- 更に、(B)金属系清浄剤、(C)ジアルキルジチオリン酸亜鉛、(D)防錆剤および(E)無灰分散剤から選ばれる少なくとも1種を含有することを特徴とする請求項1に記載のクロスヘッド型ディーゼル機関用システム潤滑油組成物。
- 基油の100℃の動粘度が3.5〜9.3mm2/sであることを特徴とする請求項1または2に記載のクロスヘッド型ディーゼル機関用システム潤滑油組成物。
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CN201080058637.6A CN102686712B (zh) | 2009-12-24 | 2010-10-08 | 十字头型柴油机用系统润滑油组合物 |
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US13/516,517 US20120258898A1 (en) | 2009-12-24 | 2010-10-08 | System lubricating oil composition for crosshead-type diesel engine |
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