| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid composition for a power transmission which can reduce useless consumption of energy in a transmission, a differential and other apparatuses where a fluid for a power transmission is used. SOLUTION: The fluid composition for the energy-conserving power transmission comprises (a) 1-49 wt% of a poly-α-olefin basestock having a kinematic viscosity of 40-500 mm<SP>2</SP>/s at 100°C, (b) 1-95 wt% of a lubricating oil basestock having a kinematic viscosity of 2-10 mm<SP>2</SP>/s at 100°C, (c) 1-49 wt% of a polyolester of a 5-30C aliphatic monocarboxylic acid and a polyol represented by the formula: R(OH)<SB>n</SB>where n is at least 2, and (d) an effective amount of a functional additive package selected from the group consisting of an automotive gear oil additive package, a fluid additive package for a manual transmission and a fluid additive package for an automatic transmission, and the composition has a kinematic viscosity of at least 4 mm<SP>2</SP>/s at 100°C. COPYRIGHT: (C)2004,JPO |
