公开(公告)号：US12031101B2

公开(公告)日：2024-07-09

申请号：US15900842

申请日：2018-02-21

Applicant: Infineum International Limited

Inventor： Gregory Stidder ,  Robert W. Shaw ,  Simon Crick

IPC: C10M169/00 ,  C10M101/00 ,  C10M129/54 ,  C10M139/04 ,  C10M141/12 ,  C10M155/02 ,  C10M169/04 ,  C10N30/04 ,  C10N40/25

CPC classification number: C10M141/12 ,  C10M101/00 ,  C10M129/54 ,  C10M139/04 ,  C10M155/02 ,  C10M169/044 ,  C10M2203/003 ,  C10M2207/129 ,  C10M2207/144 ,  C10M2215/064 ,  C10M2215/28 ,  C10M2227/02 ,  C10M2227/04 ,  C10M2229/041 ,  C10M2229/042 ,  C10M2229/046 ,  C10M2229/047 ,  C10M2229/052 ,  C10N2030/04 ,  C10N2040/255 ,  C10M2207/262 ,  C10N2010/04 ,  C10M2215/28 ,  C10N2060/14 ,  C10M2219/068 ,  C10N2010/04

Abstract: A lubricating oil composition, a method of reducing low-speed pre-ignition (LSPI) in a direct-injected spark-ignited internal combustion engine, and a use of a lubricant composition to reduce LSPI events in such an engine. Preferably, the composition comprises a detergent comprising an overbased calcium detergent having a total base number (TBN) of at least 150, wherein the lubricating oil composition has a calcium content of at least 0.08 wt. %, based on the weight of the lubricating oil composition, and wherein the lubricating oil composition has a silicon content of at least 12 ppm by weight, based on the weight of the lubricating oil composition.

公开(公告)号：US20180237718A1

公开(公告)日：2018-08-23

申请号：US15900842

申请日：2018-02-21

Applicant: Infineum International Limited

Inventor： Gregory Stidder ,  Robert W. Shaw ,  Simon Crick

IPC: C10M141/12 ,  C10M101/00 ,  C10M129/54 ,  C10M139/04 ,  C10M155/02 ,  C10M169/04

CPC classification number: C10M141/12 ,  C10M101/00 ,  C10M129/54 ,  C10M139/04 ,  C10M155/02 ,  C10M169/044 ,  C10M2203/003 ,  C10M2207/129 ,  C10M2207/144 ,  C10M2215/064 ,  C10M2215/28 ,  C10M2227/02 ,  C10M2227/04 ,  C10M2229/041 ,  C10M2229/042 ,  C10M2229/046 ,  C10M2229/047 ,  C10M2229/052 ,  C10N2230/04 ,  C10N2240/104 ,  C10M2207/262 ,  C10N2210/02 ,  C10N2260/14 ,  C10M2219/068

Abstract: A lubricating oil composition, a method of reducing low-speed pre-ignition (LSPI) in a direct-injected spark-ignited internal combustion engine, and a use of a lubricant composition to reduce LSPI events in such an engine. Preferably, the composition comprises a detergent comprising an overbased calcium detergent having a total base number (TBN) of at least 150, wherein the lubricating oil composition has a calcium content of at least 0.08 wt. %, based on the weight of the lubricating oil composition, and wherein the lubricating oil composition has a silicon content of at least 12 ppm by weight, based on the weight of the lubricating oil composition.