公开(公告)号：US20210269736A1

公开(公告)日：2021-09-02

申请号：US17259825

申请日：2019-07-11

申请人： SHELL OIL COMPANY

发明人： Jose Luis GARCIA ,  Seung Min YEO ,  Jörg REHER

IPC分类号： C10M169/04 ,  C10M101/02 ,  C10M133/12

摘要： A lubricating composition comprising a base oil and one or more additives, wherein the composition has: a sulphated ash content (according to ASTM D 874) of at least 0.4 wt % and at most 1.0 wt. %, by weight of the lubricating composition; a total base number (TBN) value (according to ASTM D 2896) of at least 4.0 mg KOH/g and at most 12 mg KOH/g; a total aromatics content contributed by the base oil in the range from 1 wt % to 30 wt %, by weight of the lubricating composition; and a sulphur content contributed by the base oil of 0.4 wt % or less, by weight of the lubricating composition; and wherein the base oil comprises a blend of (i) a first base oil which is a mineral base oil selected from an API Group I mineral base oil and an API Group II mineral base oil, and mixtures thereof, and (ii) a second base oil selected from an API Group II base oil and an API Group III base oil, preferably wherein the first base oil belongs to a different API group to that of the second base oil.

公开(公告)号：US20190203141A1

公开(公告)日：2019-07-04

申请号：US16311815

申请日：2017-06-23

申请人： SHELL OIL COMPANY

发明人： Jose Luis GARCIA ,  Stefan GEHLE

IPC分类号： C10M111/02

摘要： The present invention provides a lubricating composition suitable for use in a two-stroke crosshead diesel engine. The lubricating composition comprises a base oil blend consisting of base oil chosen from Group I, base oil chosen from Group II and deasphalted cylinder oil.