Abstract:
PROBLEM TO BE SOLVED: To lubricate an internal combustion engine, and improve the efficiency of an exhaust control system. SOLUTION: In a method for lubricating the internal combustion engine and improving the efficiency of the exhaust control system of the engine, the exhaust control system includes a catalyst containing an exhaust gas after a processing device. The method comprises the steps of: (A) selecting a lubricating oil composition containing a base oil, a surfactant containing an alkaline metal or an alkali earth metal, a metal salt of at least one phosphorus-containing compound, and an acylated nitrogen-containing compound having at least 10 aliphatic carbon atoms and a TBN of at least about 2, wherein the lubricating oil composition has a phosphorus content of about 0.12% and substantially no copper; (B) adding the lubricating oil composition to the engine; (C) operating the engine; (D) producing a dilute phosphorus-containing exhaust gas; and (E) bringing the catalyst into contact with the dilute phosphorus-containing exhaust gas in the exhaust gas after the processing device. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lubricant composition for power transmission fluid which composition is useful for an automatic transmission and an automated manual transmission for continuous variable shifting and/or with or without a start-up apparatus such as a torque converter and the like. SOLUTION: An additive composition can contain at least one phosphorous and boron-containing disperser, at least one boron-containing disperser and at least one cleaner. This composition is useful for power transmission and gives an improved shudder-preventing performance and/or an improved friction durability. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To obtain an abrasion resistance improver which has excellent extreme pressure properties equivalent to or higher than those of chlorinated paraffin, though it does not contain chlorine atom, and is excellent in compatibility with a base oil (e.g. a mineral oil) by compounding a phosphoric-ester-group- containing polyether compound with an amine compound. SOLUTION: This abrasion resistance improver is prepared by compounding (A) at least one phosphoric-ester-group-containing polyether compound selected from among compounds represented by formulas I, II, and III with (B) at least one amine compound selected from among compounds represented by formulas IV and V in a wt. ratio of A/B of (5/1)-(1/5). In the formulas, R1 is a 1-30C monovalent hydrocarbon group; R2 is a 1-20C divalent hydrocarbon group; A1O is 3-4C oxyalkylene; p is 18-100; q is 0 or 1-40; s is 10-50; t is 0 or 1-20; R3 is 8-22C alkyl or alkenyl; R4 and R5 are each 4-22C alkyl or alkenyl; A2O is oxypropylene; m and n are each 1-19 provided m+n is 2-20; and r is 1-20.
Abstract:
PROBLEM TO BE SOLVED: To obtain a lubricating oil composition exhibiting improved low temperature valve train wear performance at a lowered phosphorus content. SOLUTION: This lubricating oil composition comprises a major amount of an oil having lubricating viscosity, an oil soluble molybdenum compound in an amount providing at least 50 ppm molybdenum in the composition, a metal hydrocarbyl dithiophosphate in an amount providing ≤600 ppm phosphorus in the composition, an effective amount of at least one metal-free friction modifier and an effective amount of at least one phosphorus-free antioxidant. COPYRIGHT: (C)2003,JPO