公开(公告)号：US20240141250A1

公开(公告)日：2024-05-02

申请号：US18475160

申请日：2023-09-26

申请人： Infineum International Limited

发明人： Linda WIlson ,  Abigail Perry ,  Robert Stallwood ,  James Lee Head ,  Barry Corber ,  Gregory Killian ,  Viral Bobby Patel ,  Stuart Alexander Taylor ,  Chloe Allen ,  Allyson Ruth Doyle

IPC分类号： C10M143/02 ,  C10M125/22 ,  C10M129/10 ,  C10M129/52 ,  C10M129/54 ,  C10M143/04 ,  C10M169/04

CPC分类号： C10M143/02 ,  C10M125/22 ,  C10M129/10 ,  C10M129/52 ,  C10M129/54 ,  C10M143/04 ,  C10M169/04 ,  C10N2020/04

摘要： This invention relates to a lubricating oil composition comprising or resulting from the admixing of: a) 50 to 99 mass % of one or more base oils; b) 0.1 to 15 mass % of one or more functionalized olefin copolymer having an Mn of from 10,000 to 35,000 g/mol; c) 0.1 to 20 mass % of one or more detergents wherein the detergent comprises at least one calcium detergent having a TBN of more than 100 mg KOH/g; at least one calcium detergent having a TBN of 100 mg KOH/g or less; and at least one magnesium detergent, where the difference in the TBN's for the Ca detergents is at least 100 mg KOH/g; d) 0.01 to 40 mass % of one or more dispersants wherein the dispersants comprise at least one borated dispersant and at least one non borated dispersant; e) 0.01 to 20 of mass % sulfurized fatty acid ester; f) 0.01 to 5 mass % of one or more amine or phenol based antioxidants; and g) 0.001 to 15 mass % of molybdenum containing compound, where the lubricating oil composition has: 1) a sulfated ash content of 0.9 mass % or less; 2) a Mack T-11 final soot %@15 cSt of 6.7% or more; 3) a total base number of 5 to 30 mg KOH/g; 4) HTCBT of copper level increase of 20 ppm or less; 5) T-13 IR peak EOT of 40 abs/cm or less; and 6) Cam wear outlet of 45 μm or less.