METHOD FOR LUBRICATING HEAVY DUTY GEARED APPARATUS
    4.
    发明申请
    METHOD FOR LUBRICATING HEAVY DUTY GEARED APPARATUS 审中-公开
    用于润滑重型齿轮装置的方法

    公开(公告)号:WO2008013698A1

    公开(公告)日:2008-01-31

    申请号:PCT/US2007/016173

    申请日:2007-07-17

    Abstract: A method for improving the oil drain interval, fuel and energy efficiency of heavy duty geared machinery by lubricating said apparatus using a lubricating oil composition comprising as base oil about 20 to 75 wt% PAO 2 to 10, about 5 to 40 wt% PAO 150-1000, about 10 to 40 wt% PAO 20-100, about 5 to 20 wt% of one or more polyol ester or dibasic acid ester having a kinematic viscosity of between about 2 to 5 mm 2 /s at 100 °C mm 2 /s and further containing an effective amount of at least one gear oil additive, said lubricating oil composition having a kinematic viscosity at 100°C between 9 and 12.5 mm 2 /s, and exhibiting a traction coefficient value (100°C/30 SSR value) of 0.0197 or less, a Brookfield viscosity at -40°C of about 26,000 cP or less a CCS viscosity at -25°C of 4200 cP or less, a flash point of 220°C or higher and a NOACK volatility of 15% or less.

    Abstract translation: 一种用于通过使用润滑油组合物润滑所述装置来改进重型齿轮减速机械的排油间隔,燃料和能量效率的方法,所述润滑油组合物包含基础油约20至75重量%的PAO 2至10,约5至40重量%的PAO 150 -1000,约10至40重量%的PAO 20-100,约5至20重量%的一种或多种运动粘度在约2至5mm之间的多元醇酯或二元酸酯, 并且还含有有效量的至少一种齿轮油添加剂,所述润滑油组合物在100℃下的运动粘度在9和12.5mm之间。 表现为0.0197以下的牵引系数值(100℃/ 30 SSR值),-40℃下的Brookfield粘度为约26,000cP以下,-25℃时的CCS粘度 为4200cP以下,闪点为220℃以上,NOACK挥发度为15%以下。

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