公开(公告)号：US20190241829A1

公开(公告)日：2019-08-08

申请号：US16333302

申请日：2017-09-14

Applicant: The Lubrizol Corporation

Inventor： Yanshi ZHANG ,  Ewan DELBRIDGE ,  Mary Galic RAGUZ ,  Alexandra MAYHEW ,  Thomas DEREVJANIK ,  John LOOP

IPC: C10M169/04

CPC classification number: C10M169/044 ,  C10M169/00 ,  C10M2203/1025 ,  C10M2207/023 ,  C10M2207/026 ,  C10M2207/027 ,  C10M2207/028 ,  C10M2207/04 ,  C10M2207/046 ,  C10M2207/262 ,  C10M2209/103 ,  C10M2209/104 ,  C10M2209/105 ,  C10M2209/106 ,  C10M2209/107 ,  C10M2209/108 ,  C10M2215/064 ,  C10M2215/28 ,  C10M2219/022 ,  C10M2219/044 ,  C10M2219/046 ,  C10M2223/045 ,  C10N2210/02 ,  C10N2220/021 ,  C10N2230/04 ,  C10N2230/10 ,  C10N2230/12 ,  C10N2230/40 ,  C10N2230/42 ,  C10N2230/45 ,  C10N2230/52 ,  C10N2230/54 ,  C10N2240/10 ,  C10N2240/102 ,  C10N2240/103

Abstract: The disclosed technology provides lubricating compositions comprising an oil of lubricating viscosity, an alkaline earth metal sulfonate detergent having a metal ratio of at least 10, in an amount to contribute 3 to 14 g KOH/kg of TBN to the lubricating composition, an ashless, sulfur free, hydrocarbyl phenolic compound in an amount of 0.4 to about 6.0 weight percent (wt %) of the composition, and an ashless dispersant; wherein the lubricating composition has total ash of 0.3 to 1.8 wt %, total detergent soap of 0.1 to 1.2 wt % and wherein the lubricating composition contains less than 0.1 wt % of a sulfur-containing phenolic detergent. The disclosed technology further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The disclosed technology further relates to the use of the of the lubricating composition in a heavy duty diesel internal combustion engine to improve control of at least one of the following (i) fuel economy, (ii) corrosion, (iii) cleanliness, and (iv) bore wear.