JPWO2015034091A1 - Transmission oil - Google Patents
Transmission oil Download PDFInfo
- Publication number
- JPWO2015034091A1 JPWO2015034091A1 JP2015535548A JP2015535548A JPWO2015034091A1 JP WO2015034091 A1 JPWO2015034091 A1 JP WO2015034091A1 JP 2015535548 A JP2015535548 A JP 2015535548A JP 2015535548 A JP2015535548 A JP 2015535548A JP WO2015034091 A1 JPWO2015034091 A1 JP WO2015034091A1
- Authority
- JP
- Japan
- Prior art keywords
- transmission oil
- mass
- oil
- transmission
- less
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 90
- 239000003921 oil Substances 0.000 claims abstract description 87
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 48
- 239000002199 base oil Substances 0.000 claims abstract description 24
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 15
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 11
- 239000011575 calcium Substances 0.000 claims abstract description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 7
- -1 organic acid calcium salt compound Chemical class 0.000 claims description 19
- 229920013639 polyalphaolefin Polymers 0.000 claims description 10
- 239000003599 detergent Substances 0.000 claims description 5
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 claims description 2
- 229960001860 salicylate Drugs 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- 230000003068 static effect Effects 0.000 description 13
- 239000003963 antioxidant agent Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000002585 base Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000002480 mineral oil Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 229930195729 fatty acid Natural products 0.000 description 5
- 235000010446 mineral oil Nutrition 0.000 description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 229920000193 polymethacrylate Polymers 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000006078 metal deactivator Substances 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 150000003939 benzylamines Chemical class 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 229930195734 saturated hydrocarbon Natural products 0.000 description 2
- 239000001384 succinic acid Substances 0.000 description 2
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- NSNIMHFJAMGNCZ-UHFFFAOYSA-N (3-hydroxy-2,2-dimethylpropyl) dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCC(C)(C)CO NSNIMHFJAMGNCZ-UHFFFAOYSA-N 0.000 description 1
- OILQNNHOQFRDJH-UHFFFAOYSA-N 1-hexadecylsulfanylhexadecane Chemical compound CCCCCCCCCCCCCCCCSCCCCCCCCCCCCCCCC OILQNNHOQFRDJH-UHFFFAOYSA-N 0.000 description 1
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- OPLCSTZDXXUYDU-UHFFFAOYSA-N 2,4-dimethyl-6-tert-butylphenol Chemical compound CC1=CC(C)=C(O)C(C(C)(C)C)=C1 OPLCSTZDXXUYDU-UHFFFAOYSA-N 0.000 description 1
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 1
- UDFARPRXWMDFQU-UHFFFAOYSA-N 2,6-ditert-butyl-4-[(3,5-ditert-butyl-4-hydroxyphenyl)methylsulfanylmethyl]phenol Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CSCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 UDFARPRXWMDFQU-UHFFFAOYSA-N 0.000 description 1
- ROHFBIREHKPELA-UHFFFAOYSA-N 2-[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]prop-2-enoic acid;methane Chemical compound C.CC(C)(C)C1=CC(CC(=C)C(O)=O)=CC(C(C)(C)C)=C1O.CC(C)(C)C1=CC(CC(=C)C(O)=O)=CC(C(C)(C)C)=C1O.CC(C)(C)C1=CC(CC(=C)C(O)=O)=CC(C(C)(C)C)=C1O.CC(C)(C)C1=CC(CC(=C)C(O)=O)=CC(C(C)(C)C)=C1O ROHFBIREHKPELA-UHFFFAOYSA-N 0.000 description 1
- BWLFKDPIPUEVHC-UHFFFAOYSA-N 2-tert-butyl-4-[1-(5-tert-butyl-4-hydroxy-2-methylphenyl)butyl]-5-methylphenol;2,6-ditert-butyl-4-[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]phenol Chemical compound C=1C(C(C)(C)C)=C(O)C=C(C)C=1C(CCC)C1=CC(C(C)(C)C)=C(O)C=C1C.CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BWLFKDPIPUEVHC-UHFFFAOYSA-N 0.000 description 1
- GPNYZBKIGXGYNU-UHFFFAOYSA-N 2-tert-butyl-6-[(3-tert-butyl-5-ethyl-2-hydroxyphenyl)methyl]-4-ethylphenol Chemical compound CC(C)(C)C1=CC(CC)=CC(CC=2C(=C(C=C(CC)C=2)C(C)(C)C)O)=C1O GPNYZBKIGXGYNU-UHFFFAOYSA-N 0.000 description 1
- PRWJPWSKLXYEPD-UHFFFAOYSA-N 4-[4,4-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)butan-2-yl]-2-tert-butyl-5-methylphenol Chemical compound C=1C(C(C)(C)C)=C(O)C=C(C)C=1C(C)CC(C=1C(=CC(O)=C(C=1)C(C)(C)C)C)C1=CC(C(C)(C)C)=C(O)C=C1C PRWJPWSKLXYEPD-UHFFFAOYSA-N 0.000 description 1
- VSAWBBYYMBQKIK-UHFFFAOYSA-N 4-[[3,5-bis[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-2,4,6-trimethylphenyl]methyl]-2,6-ditert-butylphenol Chemical compound CC1=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C1CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 VSAWBBYYMBQKIK-UHFFFAOYSA-N 0.000 description 1
- FCQAFXHLHBGGSK-UHFFFAOYSA-N 4-nonyl-n-(4-nonylphenyl)aniline Chemical compound C1=CC(CCCCCCCCC)=CC=C1NC1=CC=C(CCCCCCCCC)C=C1 FCQAFXHLHBGGSK-UHFFFAOYSA-N 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- DWLMIYNUGWGKQW-UHFFFAOYSA-N C(CCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCC)CCCC)CCCC Chemical compound C(CCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCC)CCCC)CCCC DWLMIYNUGWGKQW-UHFFFAOYSA-N 0.000 description 1
- WFHKDFKMMXNXBE-UHFFFAOYSA-N C(CCCCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCCCC)CCCCCC)CCCCCC Chemical compound C(CCCCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCCCC)CCCCCC)CCCCCC WFHKDFKMMXNXBE-UHFFFAOYSA-N 0.000 description 1
- LKDKCTLTRLXBKU-UHFFFAOYSA-N C(CCCCCC)C=1C(=C(C=CC1)NC1=CC=CC=C1)CCCCCCC Chemical compound C(CCCCCC)C=1C(=C(C=CC1)NC1=CC=CC=C1)CCCCCCC LKDKCTLTRLXBKU-UHFFFAOYSA-N 0.000 description 1
- QZHGURFFNXQTML-UHFFFAOYSA-N C(CCCCCCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCCCCCC)CCCCCCCC)CCCCCCCC Chemical compound C(CCCCCCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCCCCCC)CCCCCCCC)CCCCCCCC QZHGURFFNXQTML-UHFFFAOYSA-N 0.000 description 1
- YNLGQWRNZWQQMD-UHFFFAOYSA-N C(CCCCCCCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCCCCCCC)CCCCCCCCC)CCCCCCCCC Chemical compound C(CCCCCCCC)C=1C(=C(C(=C(C=1)NC1=CC=CC=C1)CCCCCCCCC)CCCCCCCCC)CCCCCCCCC YNLGQWRNZWQQMD-UHFFFAOYSA-N 0.000 description 1
- 241001267494 Microdes Species 0.000 description 1
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 1
- QAPVYZRWKDXNDK-UHFFFAOYSA-N P,P-Dioctyldiphenylamine Chemical compound C1=CC(CCCCCCCC)=CC=C1NC1=CC=C(CCCCCCCC)C=C1 QAPVYZRWKDXNDK-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- GNVMUORYQLCPJZ-UHFFFAOYSA-N carbamothioic s-acid Chemical compound NC(S)=O GNVMUORYQLCPJZ-UHFFFAOYSA-N 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- YAUPZUPLDOYFST-UHFFFAOYSA-N dodecanoic acid;2-ethyl-2-(hydroxymethyl)propane-1,3-diol Chemical compound CCC(CO)(CO)CO.CCCCCCCCCCCC(O)=O YAUPZUPLDOYFST-UHFFFAOYSA-N 0.000 description 1
- 238000002338 electrophoretic light scattering Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- RZRNAYUHWVFMIP-UHFFFAOYSA-N monoelaidin Natural products CCCCCCCCC=CCCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- XUMOVISJJBHALN-UHFFFAOYSA-N n-butyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCC)C1=CC=CC=C1 XUMOVISJJBHALN-UHFFFAOYSA-N 0.000 description 1
- VCQJSMBSGMLFKI-UHFFFAOYSA-N n-heptyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCCCC)C1=CC=CC=C1 VCQJSMBSGMLFKI-UHFFFAOYSA-N 0.000 description 1
- LVZUNTGFCXNQAF-UHFFFAOYSA-N n-nonyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(CCCCCCCCC)C1=CC=CC=C1 LVZUNTGFCXNQAF-UHFFFAOYSA-N 0.000 description 1
- UMKFCWWZAONEEQ-UHFFFAOYSA-N n-nonyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCCCCCC)C1=CC=CC=C1 UMKFCWWZAONEEQ-UHFFFAOYSA-N 0.000 description 1
- RQVGZVZFVNMBGS-UHFFFAOYSA-N n-octyl-n-phenylaniline Chemical compound C=1C=CC=CC=1N(CCCCCCCC)C1=CC=CC=C1 RQVGZVZFVNMBGS-UHFFFAOYSA-N 0.000 description 1
- ZLNMGXQGGUZIJL-UHFFFAOYSA-N n-octyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCCCCC)C1=CC=CC=C1 ZLNMGXQGGUZIJL-UHFFFAOYSA-N 0.000 description 1
- NCEGDHPVRKYIJN-UHFFFAOYSA-N n-pentyl-n-phenylnaphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(CCCCC)C1=CC=CC=C1 NCEGDHPVRKYIJN-UHFFFAOYSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- DOIRQSBPFJWKBE-UHFFFAOYSA-N phthalic acid di-n-butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- 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
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/02—Well-defined hydrocarbons
- C10M105/04—Well-defined hydrocarbons aliphatic
-
- 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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
- C10M135/10—Sulfonic acids or derivatives thereof
-
- 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
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Abstract
基油に炭酸カルシウムを配合してなる変速機油であって、前記炭酸カルシウムは凝集構造体として当該変速機油に分散しており、前記凝集構造体のうち、200nm以上の粒子径を有するものの割合が前記凝集構造体全量基準かつカルシウム換算で10質量%以上35質量%以下であり、当該変速機油の塩酸法による塩基価が0.5mgKOH/g以上4mgKOH/g以下であることを特徴とする。A transmission oil obtained by mixing calcium carbonate with a base oil, wherein the calcium carbonate is dispersed in the transmission oil as an aggregate structure, and a ratio of the aggregate structure having a particle diameter of 200 nm or more is included. The aggregate structure is based on the total amount of the aggregated structure and is 10% by mass or more and 35% by mass or less in terms of calcium, and the base number of the transmission oil by the hydrochloric acid method is 0.5 mgKOH / g or more and 4 mgKOH / g or less.
Description
本発明は変速機油に関する。 The present invention relates to transmission oil.
自動変速機(AT:Automatic Transmission)は、車の速度や負荷の大きさなどに応じて伝達トルク比が自動的に設定される機構を有する変速機であり、トルクコンバーター、歯車機構、油圧機構、および湿式クラッチなどから構成される。また、変速機としては、無段変速機(CVT:Continuously Variable Transmission)もよく用いられ、金属ベルトや金属チェーンと金属製プーリー間との摩擦によりトルクを伝達する方式がよく知られている。さらに、近年になって、デュアルクラッチ(DCT:Dual Clutch Transmission)を備えた自動車が市場に出回りはじめた。DCTはATの一種であるが、奇数段、偶数段に専用のクラッチを用意し、変速時にあらかじめ次の段の歯車をかみ合わせておくので、クラッチを切り替えるだけで素早い変速ができる。
このような各種の変速機に対しては種々の変速機油が提案されている。特に、伝達トルク容量の観点からは静摩擦係数(μs)と動摩擦係数(μd)の高い変速機油が要求される。例えば、特許文献1には、潤滑油基油に、ポリオール化合物、アルカリ金属ホウ酸塩、無灰分散剤、およびアルカリ土類金属スルフォネートを配合してなる潤滑油組成物が記載されている。この組成物によれば、湿式クラッチの静摩擦係数(μs)と動摩擦係数(μd)を同時に高めることができる(段落[0073][発明の効果]参照)。An automatic transmission (AT) is a transmission having a mechanism in which a transmission torque ratio is automatically set in accordance with a vehicle speed, a load size, and the like. A torque converter, a gear mechanism, a hydraulic mechanism, And a wet clutch. As a transmission, a continuously variable transmission (CVT) is often used, and a method of transmitting torque by friction between a metal belt or metal chain and a metal pulley is well known. Furthermore, in recent years, vehicles equipped with a dual clutch (DCT) have begun to appear on the market. DCT is a kind of AT, but dedicated clutches are prepared for odd-numbered and even-numbered gears, and the gears of the next gear are meshed in advance at the time of gear shifting, so that a quick gear shifting can be achieved simply by switching the clutch.
Various transmission oils have been proposed for such various transmissions. In particular, transmission oil having a high static friction coefficient (μs) and a high dynamic friction coefficient (μd) is required from the viewpoint of transmission torque capacity. For example, Patent Document 1 describes a lubricating oil composition obtained by blending a lubricating base oil with a polyol compound, an alkali metal borate, an ashless dispersant, and an alkaline earth metal sulfonate. According to this composition, the static friction coefficient (μs) and the dynamic friction coefficient (μd) of the wet clutch can be simultaneously increased (see paragraph [0073] [Effects of the invention]).
上記した、AT、CVTおよびDCTのいずれにおいても、伝達トルク容量を確保するために静摩擦係数(μs)が大きいことが望まれる。
しかしながら、上述した特許文献1に記載された変速機油であっても、静摩擦係数(μs)の向上に関しては必ずしも十分ではない。また、変速機油として構成が複雑でありコスト的にも問題がある。
また、上記したAT、CVTおよびDCTのいずれにおいても、長時間使用しているうちに変速機油の動摩擦係数(μd)が低下し、クラッチ摺動部のスティック・スリップ現象に起因する車両全体の振動(シャダー)が発生しやすくなる。それ故、実用上の観点よりクラッチ寿命が長いこと、具体的にはシャダー寿命が長いことが求められる。
しかしながら、上述した特許文献1に記載された変速機油であっても、長時間使用後の動摩擦係数(μd)に関しては必ずしも維持性能が十分ではない。また、変速機油として構成が複雑でありコスト的にも問題がある。In any of the above-described AT, CVT, and DCT, it is desirable that the coefficient of static friction (μs) is large in order to ensure the transmission torque capacity.
However, even the transmission oil described in Patent Document 1 described above is not necessarily sufficient for improving the coefficient of static friction (μs). Further, the structure of the transmission oil is complicated and there is a problem in cost.
Further, in any of the AT, CVT, and DCT described above, the dynamic friction coefficient (μd) of the transmission oil decreases over a long period of use, and vibration of the entire vehicle due to stick-slip phenomenon of the clutch sliding portion. (Shadder) is likely to occur. Therefore, from a practical point of view, a long clutch life, specifically, a long shudder life is required.
However, even the transmission oil described in Patent Document 1 described above does not necessarily have sufficient maintenance performance with respect to the dynamic friction coefficient (μd) after long-term use. Further, the structure of the transmission oil is complicated and there is a problem in cost.
本発明は、簡易な構成でありながら、静摩擦係数(μs)が大きく、かつ高い動摩擦係数(μd)を長時間維持でき、クラッチ寿命の長い変速機油を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a transmission oil having a large static friction coefficient (μs) and a high dynamic friction coefficient (μd) for a long period of time while having a simple configuration, and having a long clutch life.
前記課題を解決すべく、本発明は、以下のような変速機油を提供するものである。
基油に炭酸カルシウムを配合してなる変速機油であって、前記炭酸カルシウムは凝集構造体として当該変速機油に分散しており、前記凝集構造体のうち、200nm以上の粒子径を有するものの割合が前記凝集構造体全量基準かつカルシウム換算で10質量%以上35質量%以下であり、当該変速機油の塩酸法による塩基価が0.5mgKOH/g以上4mgKOH/g以下であることを特徴とする変速機油。In order to solve the above problems, the present invention provides the following transmission oil.
A transmission oil obtained by mixing calcium carbonate with a base oil, wherein the calcium carbonate is dispersed in the transmission oil as an aggregate structure, and a ratio of the aggregate structure having a particle diameter of 200 nm or more is included. Transmission oil characterized in that it is 10 mass% or more and 35 mass% or less in terms of calcium based on the total amount of the aggregate structure, and the base number of the transmission oil according to hydrochloric acid method is 0.5 mgKOH / g or more and 4 mgKOH / g or less. .
本発明によれば、簡易な構成でありながら静摩擦係数(μs)が大きく、かつ高い動摩擦係数(μd)を長時間維持でき、クラッチ寿命の長い変速機油を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, although it is a simple structure, a static friction coefficient (microsecond) is large, a high dynamic friction coefficient (microd) can be maintained for a long time, and the transmission oil with a long clutch life can be provided.
本発明は、基油に炭酸カルシウムを配合してなる変速機油であって、前記炭酸カルシウムは凝集構造体として当該変速機油に分散しており、前記凝集構造体のうち、200nm以上の粒子径を有するものの割合が前記凝集構造体全量基準かつカルシウム換算で10質量%以上35質量%以下であり、当該変速機油の塩酸法による塩基価が0.5mgKOH/g以上4mgKOH/g以下であることを特徴とする。本発明の変速機油(以下、「本変速機油」ともいう。)について以下詳細に説明する。ここで、基油に炭酸カルシウムを配合してなる変速機油とは、基油と炭酸カルシウムを含む変速機油だけでなく、基油又は炭酸カルシウムの少なくとも一方の成分の代わりに、当該成分が変性した変性物を含む組成物や当該成分が反応して反応生成物を含む組成物であることも意味する。 The present invention is a transmission oil in which calcium carbonate is blended with a base oil, and the calcium carbonate is dispersed in the transmission oil as an aggregated structure, and the aggregated structure has a particle diameter of 200 nm or more. The percentage of the aggregated structure is 10 mass% or more and 35 mass% or less in terms of calcium based on the total amount of the aggregated structure, and the base number of the transmission oil according to the hydrochloric acid method is 0.5 mgKOH / g or more and 4 mgKOH / g or less And The transmission oil of the present invention (hereinafter also referred to as “the present transmission oil”) will be described in detail below. Here, the transmission oil obtained by blending calcium carbonate with the base oil is not only a transmission oil containing the base oil and calcium carbonate, but the component is modified in place of at least one component of the base oil or calcium carbonate. It also means a composition containing a modified product or a composition containing a reaction product by reacting the component.
本変速機油に用いられる基油は、特に制限がなく、鉱油と合成油のうち少なくともいずれか一方、すなわちそれぞれ単独あるいは2種以上を組み合わせて用いたり、鉱油と合成油を組み合わせて用いてもよい。
これらの鉱油や合成油としては特に制限はないが、一般に変速機の基油として用いられるものであれば適用できる。特に、100℃における動粘度が1mm2/s以上50mm2/s以下、特に2mm2/s以上15mm2/s以下の基油を用いることが好ましい。基油の100℃における動粘度が1mm2/s以上であれば、変速機のギヤ軸受、クラッチなどの摺動部位における摩耗の増大を抑制し、基油の100℃における動粘度が50mm2/s以下であれば、低温粘度が悪化を抑制することが見込まれる。
また、基油の低温流動性の指標である流動点については、特に制限されないが、−10℃以下、特に−15℃以下が好ましい。
さらに、基油としては、特に制限されないが、飽和炭化水素成分が90質量%以上、硫黄分が0.03質量%以下、粘度指数が100以上であることが好ましい。ここで、飽和炭化水素成分が90質量%以上であると、劣化生成物の量を少なくできる。また、硫黄分が0.03質量%以下であると、劣化生成物の量を少なくできる。さらに基油の粘度指数が100以上であると、高温での摩耗を少なくできる。The base oil used for the transmission oil is not particularly limited, and may be at least one of mineral oil and synthetic oil, that is, each alone or in combination of two or more, or may be used in combination of mineral oil and synthetic oil. .
These mineral oils and synthetic oils are not particularly limited, but can be applied as long as they are generally used as base oils for transmissions. In particular, it is preferable to use a base oil having a kinematic viscosity at 100 ° C. of 1 mm 2 / s to 50 mm 2 / s, particularly 2 mm 2 / s to 15 mm 2 / s. If the kinematic viscosity at 100 ° C. of the base oil is 1 mm 2 / s or more, an increase in wear at sliding parts such as a gear bearing and a clutch of the transmission is suppressed, and the kinematic viscosity at 100 ° C. of the base oil is 50 mm 2 / s. If it is s or less, it is anticipated that low temperature viscosity will suppress deterioration.
Further, the pour point, which is an index of the low temperature fluidity of the base oil, is not particularly limited, but is preferably −10 ° C. or lower, particularly preferably −15 ° C. or lower.
Furthermore, although it does not restrict | limit especially as base oil, It is preferable that a saturated hydrocarbon component is 90 mass% or more, a sulfur content is 0.03 mass% or less, and a viscosity index is 100 or more. Here, when the saturated hydrocarbon component is 90% by mass or more, the amount of the deteriorated product can be reduced. Further, when the sulfur content is 0.03% by mass or less, the amount of deteriorated product can be reduced. Furthermore, when the viscosity index of the base oil is 100 or more, wear at high temperatures can be reduced.
このような鉱油としては、例えばナフテン系鉱油、パラフィン系鉱油、GTL WAXなどが挙げられる。具体的には、溶剤精製あるいは水添精製による軽質ニュートラル油、中質ニュートラル油、重質ニュートラル油、ブライトストックなどが例示できる。
一方、合成油としては、ポリブテンまたはその水素化物、ポリアルファオレフィン(1−オクテンオリゴマー、1−デセンオリゴマー等)、アルキルベンゼン、ポリオールエステル、二塩基酸エステル、ポリオキシアルキレングリコール、ポリオキシアルキレングリコールエステル、ポリオキシアルキレングリコールエーテル、ヒンダードエステル、およびシリコーンオイルなどが挙げられる。Examples of such mineral oil include naphthenic mineral oil, paraffinic mineral oil, GTL WAX, and the like. Specific examples include light neutral oil, medium neutral oil, heavy neutral oil, bright stock and the like by solvent refining or hydrogenation refining.
On the other hand, as synthetic oil, polybutene or a hydride thereof, polyalphaolefin (1-octene oligomer, 1-decene oligomer, etc.), alkylbenzene, polyol ester, dibasic acid ester, polyoxyalkylene glycol, polyoxyalkylene glycol ester, Examples include polyoxyalkylene glycol ethers, hindered esters, and silicone oils.
上記した基油においては、発明の効果の観点よりポリアルファオレフィン(PAO)を配合(混合)して用いることが好ましい。PAOとしては、アルファオレフィン単独重合体だけでなくアルファオレフィン共重合体も挙げられる。基油におけるPAOの割合は30質量%以上であることが好ましく、50質量%以上であることがより好ましい。また、PAOの100℃動粘度は、2mm2/s以上200mm2/s以下であることが好ましい。In the above base oil, it is preferable to blend (mix) polyalphaolefin (PAO) from the viewpoint of the effects of the invention. Examples of PAO include not only an alpha olefin homopolymer but also an alpha olefin copolymer. The proportion of PAO in the base oil is preferably 30% by mass or more, and more preferably 50% by mass or more. Also, 100 ° C. kinematic viscosity of PAO is preferably not more than 2 mm 2 / s or more 200 mm 2 / s.
本変速機油には、特定の形態の炭酸カルシウム(以下、「本炭酸カルシウム」ともいう)が配合される。本炭酸カルシウムは凝集構造体として当該変速機油に分散している。このような凝集構造体のうち、200nm以上の粒子径を有するもの(以下、「大粒子」ともいう。)の割合は、凝集構造体全量基準かつカルシウム換算で10質量%以上35質量%以下であり、好ましくは15質量%以上30質量%以下である。凝集構造体における大粒子が上記範囲であると、変速機油としたときに静摩擦係数(μs)が大きく、かつ高い動摩擦係数(μd)を長時間維持できる。また、上述の凝集構造体については、発明の効果の観点よりその平均粒子径が10nm以上180nm以下であることが好ましく、30nm以上150nm以下であることがより好ましい。 The transmission oil contains a specific form of calcium carbonate (hereinafter also referred to as “the present calcium carbonate”). The present calcium carbonate is dispersed in the transmission oil as an aggregate structure. Among such aggregate structures, the ratio of those having a particle diameter of 200 nm or more (hereinafter also referred to as “large particles”) is 10 mass% or more and 35 mass% or less based on the total mass of the aggregate structure and in terms of calcium. Yes, preferably 15% by mass or more and 30% by mass or less. When the large particles in the aggregated structure are in the above range, the coefficient of static friction (μs) is large when the transmission oil is used, and a high dynamic friction coefficient (μd) can be maintained for a long time. In addition, the above-described aggregate structure preferably has an average particle size of 10 nm to 180 nm, and more preferably 30 nm to 150 nm, from the viewpoint of the effects of the invention.
上記した凝集構造体は、電気泳動光散乱法により、その粒子径や粒子径の分布および平均粒子径を求めることができる。例えば、大塚電子製ELSZ−1000Sを用いた粒径測定システムが好適である。
本炭酸カルシウムを基油に配合して、大粒子が所定量分散した変速機油を得るには、例えば、基油や任意の変速機油に、所定の粒度分布を有する凝集構造を備えた炭酸カルシウムを配合してもよく、所定の凝集構造体を含む過塩基性有機酸カルシウム塩化合物(例えば、過塩基性清浄剤)を配合してもよい。後者の場合、本炭酸カルシウムは過塩基性有機酸カルシウム塩化合物に起因するものとなる。凝集構造体である炭酸カルシウムの製法は特に限定されるものではないが、例えば有機酸を塩基性カルシウム酸化物や水酸化物で中和したのちに過剰の塩基性カルシウム酸化物や水酸化物を炭酸化することにより得ることができる。The above-mentioned aggregated structure can be determined for its particle size, particle size distribution, and average particle size by electrophoretic light scattering. For example, a particle size measurement system using ELSZ-1000S manufactured by Otsuka Electronics is suitable.
In order to obtain a transmission oil in which a large amount of large particles are dispersed by blending the present calcium carbonate with a base oil, for example, calcium carbonate having an aggregate structure having a predetermined particle size distribution is added to the base oil or an arbitrary transmission oil. You may mix | blend and you may mix | blend the overbased organic acid calcium salt compound (for example, overbased detergent) containing a predetermined aggregate structure. In the latter case, the calcium carbonate is attributed to the overbased organic acid calcium salt compound. The production method of calcium carbonate, which is an aggregate structure, is not particularly limited. For example, after neutralizing an organic acid with basic calcium oxide or hydroxide, excess basic calcium oxide or hydroxide is added. It can be obtained by carbonation.
本炭酸カルシウムの配合量は、本変速機油全量基準かつカルシウム換算で0.001質量%以上0.3質量%以下であることが好ましく、0.001質量%以上0.2質量%以下であることがより好ましく、0.01質量%以上0.2質量%以下であることがさらに好ましい。本炭酸カルシウムの配合量が上記範囲内であると、静摩擦係数(μs)を十分に高くでき、かつ高い動摩擦係数(μd)を長時間維持できるようになる。
また、本変速機油における大粒子の割合は、当該変速機油全量基準で0.056質量%以下であることが好ましく、0.045質量%以下であることがより好ましい。大粒子の本変速機油における割合が上記範囲であると、静摩擦係数(μs)を十分に高くでき、かつ高い動摩擦係数(μd)を長時間維持できる。The blending amount of the calcium carbonate is preferably 0.001% by mass or more and 0.3% by mass or less, and 0.001% by mass or more and 0.2% by mass or less in terms of calcium based on the total amount of the transmission oil. Is more preferable, and more preferably 0.01% by mass or more and 0.2% by mass or less. When the blending amount of the present calcium carbonate is within the above range, the static friction coefficient (μs) can be sufficiently increased, and a high dynamic friction coefficient (μd) can be maintained for a long time.
The ratio of large particles in the transmission oil is preferably 0.056% by mass or less, and more preferably 0.045% by mass or less, based on the total amount of the transmission oil. When the ratio of large particles in the transmission oil is in the above range, the static friction coefficient (μs) can be sufficiently increased, and the high dynamic friction coefficient (μd) can be maintained for a long time.
前記過塩基性有機酸カルシウム塩化合物のうち、過塩基性清浄剤としては、スルフォネート系、サリシレート系およびフィネート系の少なくともいずれかであることが発明の効果の観点より好ましい。
本変速機油は、塩酸法による塩基価(JIS K2501)が0.5mgKOH/g以上4mgKOH/g以下であり、好ましくは0.8mgKOH/g以上3.5mgKOH/g以下である。塩基価が上記範囲であると静摩擦係数(μs)を十分に高くでき、かつ高い動摩擦係数(μd)を長時間維持できる。
なお、本清浄剤自身は炭酸カルシウムを含み過塩基性であればよく、その塩基価は特に制限されないが、過塩素酸法による全塩基価(JIS K2501)が10mgKOH/g以上400mgKOH/g以下であることが好ましい。
本変速機油は、発明の効果の観点より100℃動粘度が3mm2/s以上8mm2/s以下であることが好ましく、4mm2/s以上7mm2/s以下であることがより好ましい。また、本変速機油の粘度指数は100以上であることが好ましい。Among the overbased organic acid calcium salt compounds, the overbased detergent is preferably at least one of sulfonate, salicylate and finate from the viewpoint of the effect of the invention.
This transmission oil has a base number (JIS K2501) by the hydrochloric acid method of 0.5 mgKOH / g or more and 4 mgKOH / g or less, preferably 0.8 mgKOH / g or more and 3.5 mgKOH / g or less. When the base number is within the above range, the static friction coefficient (μs) can be sufficiently increased, and a high dynamic friction coefficient (μd) can be maintained for a long time.
The detergent itself may contain calcium carbonate and be overbased, and the base number is not particularly limited, but the total base number (JIS K2501) by the perchloric acid method is 10 mgKOH / g or more and 400 mgKOH / g or less. Preferably there is.
The transmission oil preferably has a kinematic viscosity at 100 ° C. of 3 mm 2 / s or more and 8 mm 2 / s or less, and more preferably 4 mm 2 / s or more and 7 mm 2 / s or less from the viewpoint of the effect of the invention. Moreover, it is preferable that the viscosity index of this transmission oil is 100 or more.
本変速機油は、本発明の目的を損なわない限り、各種の添加剤を適宜配合できる。添加剤としては、例えば、粘度指数向上剤、酸化防止剤、耐摩耗剤、摩擦調整剤、無灰系分散剤、金属不活性化剤、防錆剤、消泡剤、流動点降下剤、界面活性剤、および着色剤などが適宜用いられる。 The present transmission oil can contain various additives as long as the object of the present invention is not impaired. Examples of additives include viscosity index improvers, antioxidants, antiwear agents, friction modifiers, ashless dispersants, metal deactivators, rust inhibitors, antifoaming agents, pour point depressants, interfaces. An activator, a colorant, and the like are appropriately used.
粘度指数向上剤としては、ポリメタクリレート、分散型ポリメタクリレート、オレフィン系共重合体(例えば、エチレン−プロピレン共重合体など)、分散型オレフィン系共重合体、スチレン系共重合体(例えば、スチレン−ジエン共重合体、スチレン−イソプレン共重合体など)などが挙げられる。粘度指数向上剤の配合量は、配合効果の点から、本変速機油全量基準で、0.5質量%以上、15質量%以下程度である。
流動点降下剤としては、例えば質量平均分子量が1万以上、15万以下程度のポリメタクリレートなどが用いられる。流動点降下剤の好ましい配合量は、本変速機油全量基準で、0.01質量%以上、10質量%以下程度である。Examples of the viscosity index improver include polymethacrylate, dispersed polymethacrylate, olefin copolymer (for example, ethylene-propylene copolymer), dispersed olefin copolymer, styrene copolymer (for example, styrene- Diene copolymer, styrene-isoprene copolymer, etc.). The blending amount of the viscosity index improver is about 0.5% by mass or more and 15% by mass or less on the basis of the total amount of the transmission oil in terms of blending effect.
As the pour point depressant, for example, polymethacrylate having a mass average molecular weight of about 10,000 to 150,000 is used. A preferable blending amount of the pour point depressant is about 0.01% by mass or more and 10% by mass or less based on the total amount of the transmission oil.
酸化防止剤としては、アミン系酸化防止剤、フェノール系酸化防止剤、あるいは硫黄系酸化防止剤などが挙げられる。
アミン系酸化防止剤としては、モノオクチルジフェニルアミン、モノノニルジフェニルアミン等のモノアルキルジフェニルアミン系、4,4’−ジブチルジフェニルアミン、4,4’−ジペンチルジフェニルアミン、4,4’−ジヘキシルジフェニルアミン、4,4’−ジヘプチルジフェニルアミン、4,4’−ジオクチルジフェニルアミン、4,4’−ジノニルジフェニルアミン等のジアルキルジフェニルアミン系、テトラブチルジフェニルアミン、テトラヘキシルジフェニルアミン、テトラオクチルジフェニルアミン、テトラノニルジフェニルアミン等のポリアルキルジフェニルアミン系、α−ナフチルアミン、フェニル−α−ナフチルアミン、ブチルフェニル−α−ナフチルアミン、ペンチルフェニル−α−ナフチルアミン、ヘキシルフェニル−α−ナフチルアミン、ヘプチルフェニル−α−ナフチルアミン、オクチルフェニル−α−ナフチルアミン、およびノニルフェニル−α−ナフチルアミン等のナフチルアミン系を挙げることができる。特にアルキル基の炭素数が4〜24、特には6〜18の化合物が好ましく用いられる。これらの化合物を一種または二種以上を組み合わせて使用してもよい。Examples of the antioxidant include amine-based antioxidants, phenol-based antioxidants, and sulfur-based antioxidants.
Examples of amine-based antioxidants include monoalkyl diphenylamines such as monooctyldiphenylamine and monononyldiphenylamine, 4,4′-dibutyldiphenylamine, 4,4′-dipentyldiphenylamine, 4,4′-dihexyldiphenylamine, and 4,4 ′. -Dialkyldiphenylamines such as diheptyldiphenylamine, 4,4'-dioctyldiphenylamine, 4,4'-dinonyldiphenylamine, polyalkyldiphenylamines such as tetrabutyldiphenylamine, tetrahexyldiphenylamine, tetraoctyldiphenylamine, tetranonyldiphenylamine, α -Naphtylamine, phenyl-α-naphthylamine, butylphenyl-α-naphthylamine, pentylphenyl-α-naphthylamine, hexylphenyl-α There may be mentioned naphthylamine systems such as -naphthylamine, heptylphenyl-α-naphthylamine, octylphenyl-α-naphthylamine, and nonylphenyl-α-naphthylamine. In particular, compounds having 4 to 24 carbon atoms, particularly 6 to 18 carbon atoms in the alkyl group are preferably used. These compounds may be used alone or in combination of two or more.
フェノール系酸化防止剤としては、2,6−ジ−t−ブチルフェノール、2,6−ジ−t−ブチル−4−メチルフェノール、4,4'−メチレンビス(2,6−ジ−t−ブチルフェノール)、4,4'−ブチリデンビス(3−メチル−6−t−ブチルフェノール)、2,2'−メチレンビス(4−エチル−6−t−ブチルフェノール)、2,2'−メチレンビス(4−メチル−6−t−ブチルフェノール)、4,4'−イソプロピリデンビスフェノール、2,4−ジメチル−6−t−ブチルフェノール、テトラキス[メチレン−3−(3,5−ジ−t−ブチル−4−ヒドロキシフェニル)プロピオネート]メタン、1,1,3−トリス(2−メチル−4−ヒドロキシ−5−t−ブチルフェニル)ブタン、1,3,5−トリメチル−2,4,6−トリス(3,5−ジ−t−ブチル−4−ヒドロキシベンジル)ベンゼン、および2,6−ジ−t−ブチル−4−エチルフェノール等を挙げることができる。 As phenolic antioxidants, 2,6-di-t-butylphenol, 2,6-di-t-butyl-4-methylphenol, 4,4'-methylenebis (2,6-di-t-butylphenol) 4,4'-butylidenebis (3-methyl-6-tert-butylphenol), 2,2'-methylenebis (4-ethyl-6-tert-butylphenol), 2,2'-methylenebis (4-methyl-6- t-butylphenol), 4,4'-isopropylidenebisphenol, 2,4-dimethyl-6-t-butylphenol, tetrakis [methylene-3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate] Methane, 1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1,3,5-trimethyl-2,4,6-tris (3,5-di-t -Butyl-4-hydroxybenzyl) benzene, and 2,6-di-t-butyl Examples include ru-4-ethylphenol.
硫黄系酸化防止剤としては、ジアルキルチオジプロピオネート、ジアルキルジチオカルバミン酸誘導体(金属塩は除く)、ビス(3,5−ジ−t−ブチル−4−ヒドロキシベンジル)サルファイド、メルカプトベンゾチアゾール、五硫化リンとオレフィンとの反応生成物、および硫化ジセチル等が挙げられる。
上述した各種の酸化防止剤は、単独もしくは2種以上を組み合わせて用いられる。特に、アミン系やフェノール系、あるいはアルキルジチオリン酸亜鉛などが好ましく用いられる。これらの酸化防止剤は、本変速機油全量基準で0.05質量%以上3質量%以下程度の割合で配合することが好ましい。As sulfur-based antioxidants, dialkylthiodipropionate, dialkyldithiocarbamic acid derivatives (excluding metal salts), bis (3,5-di-t-butyl-4-hydroxybenzyl) sulfide, mercaptobenzothiazole, pentasulfide The reaction product of phosphorus and an olefin, dicetyl sulfide, etc. are mentioned.
The various antioxidants described above are used alone or in combination of two or more. In particular, amines, phenols, zinc alkyldithiophosphates and the like are preferably used. These antioxidants are preferably blended at a ratio of 0.05% by mass or more and 3% by mass or less based on the total amount of the transmission oil.
耐摩耗剤としては、例えばチオリン酸金属塩(Zn、Pb、Sbなど)、チオカルバミン酸金属塩(Znなど)、硫黄化合物、リン酸エステル(トリクレジルフォスフェート)、亜リン酸エステルなどを挙げることができ、これらは本変速機油全量基準で0.05質量%以上5質量%以下程度の割合で配合することが好ましい。
摩擦調整剤としては、例えば、ネオペンチルグリコールモノラウレート、トリメチロールプロパンモノラウレート、グリセリンモノオレエート(オレイン酸モノグリセライド)などの多価アルコール部分エステルなどが挙げられる。摩擦調整剤の好ましい配合量は、本変速機油全量基準で0.05質量%以上、4質量%以下程度である。
無灰系分散剤としては、例えばコハク酸イミド類、ホウ素含有コハク酸イミド類、ベンジルアミン類、ホウ素含有ベンジルアミン類、コハク酸エステル類、脂肪酸あるいはコハク酸で代表される一価または二価のカルボン酸のアミド類などが挙げられる。無灰系分散剤の好ましい配合量は、本変速機油全量基準で、0.1質量%以上、20質量%以下程度である。Examples of antiwear agents include thiophosphate metal salts (Zn, Pb, Sb, etc.), thiocarbamic acid metal salts (Zn, etc.), sulfur compounds, phosphate esters (tricresyl phosphate), phosphites, etc. These are preferably blended at a ratio of about 0.05% by mass or more and 5% by mass or less based on the total amount of the transmission oil.
Examples of the friction modifier include polyhydric alcohol partial esters such as neopentyl glycol monolaurate, trimethylolpropane monolaurate, and glycerin monooleate (oleic acid monoglyceride). A preferable blending amount of the friction modifier is about 0.05% by mass or more and 4% by mass or less based on the total amount of the transmission oil.
Examples of the ashless dispersant include succinimides, boron-containing succinimides, benzylamines, boron-containing benzylamines, succinic esters, monovalent or divalent typified by fatty acids or succinic acid. Examples thereof include amides of carboxylic acids. A preferable blending amount of the ashless dispersant is about 0.1% by mass or more and 20% by mass or less based on the total amount of the transmission oil.
金属不活性化剤としては、例えばベンゾトリアゾール、チアジアゾールなどが、単独もしくは2種以上を組み合わせて用いられる。これら金属不活性化剤は、本変速機油全量基準で0.01質量%以上5質量%以下程度の割合で配合することが好ましい。
防錆剤としては、例えば、脂肪酸、アルケニルコハク酸ハーフエステル、脂肪酸セッケン、アルキルスルホン酸塩、多価アルコール脂肪酸エステル、脂肪酸アミド、酸化パラフィン、アルキルポリオキシエチレンエーテル等が挙げられる。防錆剤の好ましい配合量は、本変速機油全量基準で0.01質量%以上、3質量%以下程度である。
消泡剤としては、例えばシリコーン系化合物、エステル系化合物などが、単独もしくは2種以上を組み合わせて用いられる。これらの消泡剤は、本変速機油全量基準で、0.05質量%以上5質量%以下程度の割合で配合することが好ましい。As the metal deactivator, for example, benzotriazole, thiadiazole and the like are used alone or in combination of two or more. These metal deactivators are preferably blended at a ratio of about 0.01% by mass or more and 5% by mass or less based on the total amount of the transmission oil.
Examples of the rust inhibitor include fatty acid, alkenyl succinic acid half ester, fatty acid soap, alkyl sulfonate, polyhydric alcohol fatty acid ester, fatty acid amide, oxidized paraffin, alkyl polyoxyethylene ether and the like. A preferable blending amount of the rust inhibitor is about 0.01% by mass or more and 3% by mass or less based on the total amount of the transmission oil.
As the antifoaming agent, for example, a silicone compound, an ester compound, or the like is used alone or in combination of two or more. These antifoaming agents are preferably blended at a ratio of about 0.05% by mass or more and 5% by mass or less based on the total amount of the transmission oil.
流動点降下剤としては、例えばポリメタクリレートなどが用いられる。この流動点降下剤は、本変速機油全量基準で、0.01質量%以上10質量%以下程度の割合で配合することが好ましい。
界面活性剤としては、例えばポリオキシエチレンアルキルフェニルエーテルなどが用いられる。この界面活性剤は、本変速機油全量基準で0.01質量%以上10質量%以下程度の割合で配合することが好ましい。As the pour point depressant, for example, polymethacrylate is used. The pour point depressant is preferably blended at a ratio of about 0.01% by mass or more and 10% by mass or less based on the total amount of the transmission oil.
For example, polyoxyethylene alkylphenyl ether is used as the surfactant. This surfactant is preferably blended at a ratio of about 0.01% by mass or more and 10% by mass or less based on the total amount of the transmission oil.
上述した本発明の変速機油は、静摩擦係数(μs)が高いので伝達トルク容量が高く、また高い動摩擦係数(μd)を長時間維持できるためクラッチ寿命も長いので、自動変速機(AT)、無段変速機(CV)およびデュアルクラッチ(DCT)等の各種の変速機に好ましく適用できる。 Since the transmission oil of the present invention described above has a high static friction coefficient (μs), the transmission torque capacity is high, and since the high dynamic friction coefficient (μd) can be maintained for a long time, the clutch life is also long. The present invention can be preferably applied to various transmissions such as a step transmission (CV) and a dual clutch (DCT).
次に、実施例および比較例を挙げて、本発明をさらに詳しく説明する。なお、本発明は、これらの実施例などの記載内容に何ら制限されるものではない。
〔実施例1、比較例1〜2〕
基油としてPAO(100℃動粘度4.0mm2/s)を用い、表1に記載の性状の過塩基性カルシウムスルフォネートを試料油全量基準かつカルシウム換算で0.15質量%配合し、表1に示す性状の各試料油を調製した(いずれも変速機用として想定したものである)。なお、各試料油の粘度指数は、実施例1、比較例1、および比較例2ともに120であった。
上記過塩基性カルシウムについては、基油に分散させて凝集構造体の構造を確認した。具体的には、各試料油中における凝集構造体(含大粒子)の分散状態を大塚電子製ELSZ−1000Sにて測定し、炭酸カルシウムからなる凝集構造体における大粒子の割合(凝集構造体基準、質量%)および平均粒子径を算出した。結果を表1に示す。Next, the present invention will be described in more detail with reference to examples and comparative examples. In addition, this invention is not restrict | limited at all to description content, such as these Examples.
[Example 1, Comparative Examples 1-2]
Using PAO (100 ° C. kinematic viscosity 4.0 mm 2 / s) as the base oil, 0.15% by mass of the overbased calcium sulfonate having the properties shown in Table 1 on the basis of the total amount of sample oil and converted to calcium, Sample oils having the properties shown in Table 1 were prepared (all were assumed for transmission). The viscosity index of each sample oil was 120 in all of Example 1, Comparative Example 1, and Comparative Example 2.
About the said overbased calcium, it was disperse | distributed to base oil and the structure of the aggregate structure was confirmed. Specifically, the dispersion state of the aggregate structure (large particles) in each sample oil was measured with ELSZ-1000S manufactured by Otsuka Electronics Co., Ltd., and the proportion of large particles in the aggregate structure composed of calcium carbonate (aggregate structure standard) , Mass%) and average particle size. The results are shown in Table 1.
〔評価方法〕
LVFA摩擦試験機を用い、下記に示す実験条件にて、各試料油の静摩擦係数(μs)および動摩擦係数(120時間経過後のμd)を測定した(JASO M349−2001準拠)。回転数が3rpmのときの摩擦係数をμsとした。実用上、μsとしては0.08以上であることが好ましく、μdは0.10以上を維持できることが好ましい。結果を表1に示す。
材料:実機ミッションに使用しているセルロース系クラッチ材料
面圧:1.0MPa
油温:120℃
回転数:1rpmから10rpmまで(1rpmきざみ)、20rpm、30rpm〔Evaluation method〕
Using an LVFA friction tester, the static friction coefficient (μs) and dynamic friction coefficient (μd after 120 hours) of each sample oil were measured under the experimental conditions shown below (conforms to JASO M349-2001). The friction coefficient when the rotation speed was 3 rpm was μs. Practically, μs is preferably 0.08 or more, and μd is preferably maintained at 0.10 or more. The results are shown in Table 1.
Material: Cellulosic clutch material used in actual missions Surface pressure: 1.0 MPa
Oil temperature: 120 ° C
Number of revolutions: 1 rpm to 10 rpm (in steps of 1 rpm), 20 rpm, 30 rpm
〔評価結果〕
表1の結果より、大粒子(200nm以上の粒子径を有する凝集構造体)を所定の範囲で含む実施例1の試料油は静摩擦係数(μs)が実用上十分な値であり、かつ経時後の動摩擦係数(μd)も大きな値を示している。すなわち、高トルク容量とクラッチ寿命を両立させることができることがわかる。一方、比較例1〜2の試料油では、大粒子の割合が所定の範囲から逸脱しているため、過塩基性カルシウムスルフォネートの配合量や試料油の塩基価が同程度であっても、動摩擦係数(μd)の低下が実施例1に比べて極めて大きい。それ故、変速機油において大粒子を所定の範囲含むことの重要性が理解できる。〔Evaluation results〕
From the results of Table 1, the sample oil of Example 1 containing large particles (aggregated structure having a particle diameter of 200 nm or more) in a predetermined range has a practically sufficient coefficient of static friction (μs), and after a lapse of time. The coefficient of dynamic friction (μd) also shows a large value. That is, it can be seen that both high torque capacity and clutch life can be achieved. On the other hand, in the sample oils of Comparative Examples 1 and 2, since the proportion of large particles deviates from the predetermined range, even if the blending amount of the overbased calcium sulfonate and the base number of the sample oil are similar. The decrease in the coefficient of dynamic friction (μd) is much larger than that in Example 1. Therefore, the importance of including a large range of large particles in the transmission oil can be understood.
Claims (8)
前記炭酸カルシウムは凝集構造体として当該変速機油に分散しており、
前記凝集構造体のうち、200nm以上の粒子径を有するものの割合が前記凝集構造体全量基準かつカルシウム換算で10質量%以上35質量%以下であり、当該変速機油の塩酸法による塩基価が0.5mgKOH/g以上4mgKOH/g以下である
ことを特徴とする変速機油。A transmission oil comprising calcium carbonate in a base oil,
The calcium carbonate is dispersed in the transmission oil as an aggregate structure,
The ratio of the aggregate structure having a particle diameter of 200 nm or more is 10 mass% or more and 35 mass% or less in terms of calcium based on the total mass of the aggregate structure, and the base number by the hydrochloric acid method of the transmission oil is 0. Transmission oil characterized by being 5 mgKOH / g or more and 4 mgKOH / g or less.
前記炭酸カルシウムが過塩基性有機酸カルシウム塩化合物に起因するものであり、
前記炭酸カルシウムの配合量が当該変速機油全量基準かつカルシウム換算で0.001質量%以上0.3質量%以下である
ことを特徴とする変速機油。The transmission oil according to claim 1,
The calcium carbonate is derived from an overbased organic acid calcium salt compound;
The transmission oil characterized in that the blending amount of the calcium carbonate is 0.001% by mass or more and 0.3% by mass or less in terms of calcium based on the total transmission oil.
前記過塩基性有機酸カルシウム塩化合物が過塩基性清浄剤であり、
前記過塩基性清浄剤がスルフォネート系、サリシレート系およびフィネート系の少なくともいずれかである
ことを特徴とする変速機油。The transmission oil according to claim 2,
The overbased organic acid calcium salt compound is an overbased detergent;
The transmission oil, wherein the overbased detergent is at least one of sulfonate, salicylate, and finate.
前記基油がポリアルファオレフィンを含んでいる
ことを特徴とする変速機油。In the transmission oil according to any one of claims 1 to 3,
The transmission oil characterized in that the base oil contains polyalphaolefin.
前記基油におけるポリアルファオレフィンの割合が30質量%以上である
ことを特徴とする変速機油。The transmission oil according to claim 4,
The transmission oil characterized in that the proportion of polyalphaolefin in the base oil is 30% by mass or more.
前記ポリアルファオレフィンの100℃動粘度が2mm2/s以上200mm2/s以下である
ことを特徴とする変速機油。In the transmission oil according to claim 4 or 5,
A transmission oil, wherein the polyalphaolefin has a kinematic viscosity at 100 ° C. of 2 mm 2 / s or more and 200 mm 2 / s or less.
当該変速機油の100℃動粘度が3mm2/s以上8mm2/s以下であり、
当該変速機油の粘度指数が100以上である
ことを特徴とする変速機油。In the transmission oil according to any one of claims 1 to 6,
The transmission oil has a 100 ° C. kinematic viscosity of 3 mm 2 / s to 8 mm 2 / s,
A transmission fluid characterized in that the transmission fluid has a viscosity index of 100 or more.
自動変速機または無段変速機に使用される
ことを特徴とする変速機油。In the transmission oil according to any one of claims 1 to 7,
Transmission oil characterized by being used in automatic transmissions or continuously variable transmissions.
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PCT/JP2014/073695 WO2015034091A1 (en) | 2013-09-09 | 2014-09-08 | Transmission fluid |
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EP (1) | EP3031887A4 (en) |
JP (1) | JPWO2015034091A1 (en) |
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JPWO2015034089A1 (en) | 2013-09-09 | 2017-03-02 | 出光興産株式会社 | Transmission oil |
US10160926B2 (en) * | 2016-11-25 | 2018-12-25 | Hyundai Motor Company | Axle oil composition having enhanced fuel efficiency and low viscosity |
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JPH09137180A (en) * | 1995-11-16 | 1997-05-27 | Cosmo Sogo Kenkyusho:Kk | Automatic transmission fluid composition |
GB9807731D0 (en) * | 1998-04-09 | 1998-06-10 | Exxon Chemical Patents Inc | Oleaginous compositions |
JP2003155493A (en) * | 2001-11-21 | 2003-05-30 | Matsumura Sekiyu Kenkyusho:Kk | Highly basified additive composition |
JP2005008695A (en) | 2003-06-17 | 2005-01-13 | Nippon Oil Corp | Lubricant composition |
US20050124510A1 (en) * | 2003-12-09 | 2005-06-09 | Costello Michael T. | Low sediment friction modifiers |
US8114822B2 (en) * | 2006-10-24 | 2012-02-14 | Chemtura Corporation | Soluble oil containing overbased sulfonate additives |
JP5473344B2 (en) * | 2009-02-03 | 2014-04-16 | コスモ石油ルブリカンツ株式会社 | Lubricating oil composition for continuously variable transmission |
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