This invention relates to a lubricating composition comprising a major amount of an oil of lubricating viscosity and (a) a extreme pressure improving amount of at least one sulfur compound, and an antiwear or an extreme pressure improving amount of the combination of (b) at least one ammonium salt of a phosphoric acid ester, (c) at least one phosphite, and (d) at least one thiophosphate or at least one reaction product of a phosphite and sulfur or a source of sulfur. The invention also relates to concentrates and greases containing the combination of the sulfur compound and the specific phosphorus compounds.
本发明涉及一种润滑组合物,其中包含主要量的润滑粘度油和(a)至少一种
硫化合物的极压改进量,以及(b)至少一种
磷酸酯
铵盐、(c)至少一种
亚磷酸酯和(d)至少一种
硫代磷酸盐或至少一种
亚磷酸酯与
硫或
硫源的反应产物的抗磨或极压改进量的组合。本发明还涉及含有
硫化合物和特定
磷化合物组合的浓缩物和润滑脂。