申请人:EXXON CHEMICAL PATENTS INC.
公开号:EP0317348A1
公开(公告)日:1989-05-24
In accordance with the present invention, there are provided lubricating oil compositions which comprise an oil of lubricating viscosity as the major component and as the minor component (A) a mixture of (1) at least one calcium overrbased sulfonate or phenate detergent inhibitor, and (2) at least one magnesium overbased sulfonate or phenate detergent inhibitor, and (B) a mixture of (1) at least one zinc di-(primary hydrocarbyl) dithiophosphate and (2) at least one zinc di-(secondary hydrocarbyl) dithiophosphate, wherein the mixed calcium and magnesium detergent inhibitors and the mixed zinc di(primary hydrocarbyl) dithiophosphate and the zinc di(secondary hydrocarbyl) dithiophosphate antiwear agents are present in controlled ratios.
根据本发明,提供了润滑油组合物,该组合物包括作为主要成分的润滑粘度油和 作为次要成分的 (A) 以下物质的混合物:(1) 至少一种过基磺酸钙或苯酸盐去污抑制剂,和 (2) 至少一种过基磺酸镁或苯酸盐去污抑制剂、和 (B) (1) 至少一种二(伯羟基)二硫代磷酸锌和 (2) 至少一种二(仲羟基)二硫代磷酸锌的混合物,其中混合的钙和镁洗涤剂抑制剂以及混合的二(伯羟基)二硫代磷酸锌和二(仲羟基)二硫代磷酸锌抗磨剂的存在比例受控。