摘要:
PROBLEM TO BE SOLVED: To attain remarkable rust prevention for a lubricant composition having a low phosphorus level and used in an engine for leisure ships having a catalytic converter. SOLUTION: The lubricant composition comprises (a) an ashless dispersant; (b) a metal-containing cleaning agent; (c) a phosphorus-containing compound; (d) a rust inhibitor; and (e) a base stock. The lubricant composition has a phosphorus concentration of 0.08 mass% or less. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a lubricating oil composition for an internal combustion engine, usable for the internal combustion engine having an oil-cleaner such as a centrifugal cleaner, having excellent hydrolysis stability, and capable of maintaining the initial properties (e.g. high-temperature cleaning performance and abrasion-resistant properties). SOLUTION: The lubricating oil composition for the internal combustion engine, usable for the internal combustion engine having an oil-cleaner contains (A) a metal salt of a phosphorus-containing acid free from sulfur and (B) a metallic detergent in a lubricating base oil, and has 5.6-21.3 mm 2 /s dynamic viscosity at 100°C, and 3-100 mg-KOH/g base number. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a grease composition having excellent water resistance and peel resistance and provide a rolling bearing having excellent water resistance and peel resistance and especially suitable for vehicle use. SOLUTION: The grease composition contains a base oil composed of a mineral oil or a synthetic oil having a kinematic viscosity of 70-250 mm 2 /s at 40°C and containing at least one kind of carboxylic acid-based antirust agent, carboxylic acid salt-based antirust agent and ester-based antirust agent in an amount of 0.1-20 mass%. COPYRIGHT: (C)2006,JPO&NCIPI
摘要:
A lubricant composition is disclosed which comprises, a triglyceride oil lubricant and an oil soluble copper compound antioxidant. The oil soluble copper compounds are particularly effective antioxidants for triglycerides. The lubricant composition can include soluble zinc compounds which reduce wear and/or soluble antimony compounds which reduce wear and can function as adjuvant antioxidants reducing the amount of oil soluble copper required. Preferred zinc and antimony compounds are zinc dithiophosphate antiwear/antioxidant, and antimony dialkyldithiocarbamate antioxidant adjuvant.
摘要:
PROBLEM TO BE SOLVED: To provide a rolling bearing for fuel cell system capable of providing increased durability by suppressing the internal start point peeling accompanying white texture change caused by hydrogen of the rolling bearing incorporated in a force-feeding machine for force-feeding various types of fluid to devices in a fuel cell system and the fuel cell system capable of stably generating power over a long period of time. SOLUTION: This rolling bearing is incorporated in the force-feeding machine of the fuel cell system having at least a fuel cell stack and the force-feeding machine for transporting various types of fluid. A grease compound containing conductive substance of 0.1 to 10mass% or a grease compound substantially not containing sulphonate is sealed in the rolling bearing. The fuel cell system comprises the force-feeding machine having the rolling bearing for fuel cell system. COPYRIGHT: (C)2004,JPO