公开(公告)号：US20190187119A1

公开(公告)日：2019-06-20

申请号：US16212117

申请日：2018-12-06

Applicant: ExxonMobil Research and Engineering Company

Inventor： Gary CHRISTENSEN ,  Nabila BRABEZ ,  Willie A. GIVENS, JR. ,  Kevin L. CROUTHAMEL ,  Andrew D. SATTERFIELD

IPC: G01N33/28

CPC classification number: G01N33/287 ,  C10M175/0091 ,  C10N2210/02 ,  C10N2230/52 ,  C10N2240/102 ,  C10N2270/00 ,  G01N33/2876 ,  G01N33/2888

Abstract: Systems and methods are provided for estimating the total base number of used oil in an engine. The systems and methods can involve characterizing the sulfur content and at least one other element content of the oil both before introduction into the engine and after passing through an engine cylinder during combustion. Depending on the aspect, a total base number of the oil prior to use can also be measured, or the total base number before use can be estimated based on the at least one element content.