The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 2020
Filed:
Dec. 06, 2018
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Gary Christensen, Wenonah, NJ (US);
Nabila Brabez, Logan Township, NJ (US);
Willie A. Givens, Jr., Williamstown, NJ (US);
Kevin L. Crouthamel, Hume, VA (US);
Andrew D. Satterfield, Hockessin, DE (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
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.