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    • 30. 发明申请
    • Vegetable oil-based hydraulic fluid and transmission fluid
    • 植物油基液压油和输送液
    • US20110195885A1
    • 2011-08-11
    • US13066320
    • 2011-04-12
    • Otto Botz
    • Otto Botz
    • C10M105/26C07C57/02
    • C10M101/04C10M2207/401C10M2207/4045C10N2220/022C10N2220/026C10N2220/033C10N2230/64C10N2230/68C10N2240/04C10N2240/08
    • The invention relates to using vegetable oil having a natural viscosity index (VI) of greater or equal to 200 as a pressure medium in hydraulic systems and as a transmission fluid. The vegetable oil has a portion of monounsaturated fatty acids of at least 80%, a portion of double unsaturated fatty acids of 1-10% at maximum, and a portion of triple unsaturated fatty acids of less than 1%, preferably less than 0.1%. Part of the vegetable oil can be used in the form of an unsaturated ester of the vegetable oil. The vegetable oil can also contain an additive in a portion of 2-5% by weight selected from anti-oxidants, copper deactivators, anti-corrosion agents, wear protection agents and anti-foaming agents. The shear stability of the vegetable oil used according to the invention equals 0.7% or less, measured over 20 hours of use.
    • 本发明涉及在液压系统中使用具有大于或等于200的天然粘度指数(VI)的植物油作为压力介质和作为传动液体。 植物油具有至少80%的单不饱和脂肪酸的一部分,一部分最多为1-10%的双不饱和脂肪酸,以及一部分三重不饱和脂肪酸小于1%,优选小于0.1% 。 植物油的一部分可以以植物油的不饱和酯的形式使用。 植物油还可以含有选自抗氧化剂,铜失活剂,防腐剂,耐磨保护剂和消泡剂中的2-5重量%的添加剂。 根据本发明使用的植物油的剪切稳定性等于0.7%或更少,在20小时的使用中测量。