A LUBRICATED SYSTEM COMPRISING A DLC SURFACE

The present invention relates to a lubricated system comprising: a) a component comprising a first surface which is a diamond-like carbon (DLC) surface; b) a component comprising a second surface; andc) a lubricant formulation interposed between the first surface and second surface. The lubricant formulation comprises: i) a base stock; ii) a molybdenum compound; iii) an organic polymer comprisinga hydrophobic polymeric sub unit selected from polyesters and functionalised polyolefins and a hydrophilic polymeric sub unit selected from polyethers; and iv) optionally, other additives. The combination of the molybdenum compound and the organic polymer in the lubricant formulation reduces the wear on one or more of the surfaces in the lubricated system when compared with using the molybdenum containing friction modifier alone. 本发明涉及种经润滑的系统，该系统包括：a)包含第表面的组件，所述第表面是类金刚石碳(DLC)表面；b)包含第二表面的组件；c)介于第表面和第二表面之间的润滑剂制剂。该润滑剂制剂包括：i)基础原料；i i)钼化合物；i i i)有机聚合物，其包含选自聚酯和官能化聚烯烃的疏水性聚合物子单元和选自聚醚的亲水性聚合物子单元；和iv)任选地，其它添加剂。与单独使用含钼的摩擦改进剂相比，润滑