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. 29, 2016
Filed:
May. 29, 2014
Smruti A. Dance, Robbinsville, NJ (US);
Ahmed F. Abou El Enein, Philadelphia, PA (US);
Benjamin D. Eirich, Wenonah, NJ (US);
Kevin J. Kelly, Mullica Hill, NJ (US);
Douglas E. Deckman, Mullica Hill, NJ (US);
Smruti A. Dance, Robbinsville, NJ (US);
Ahmed F. Abou El Enein, Philadelphia, PA (US);
Benjamin D. Eirich, Wenonah, NJ (US);
Kevin J. Kelly, Mullica Hill, NJ (US);
Douglas E. Deckman, Mullica Hill, NJ (US);
ExxonMobil Research and Engineering Company, Annondale, NJ (US);
Abstract
A method for improving wear control, while maintaining or improving deposit control and fuel efficiency, in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and at least one dispersant and a mixture of viscosity modifiers, as minor components. The at least one dispersant is a polyalkenyl succinic derivative and at least one viscosity modifier is a vinyl aromatic-containing polymer or copolymer. A lubricating engine oil having a composition including a lubricating oil base stock as a major component, at least one dispersant and a mixture of viscosity modifiers, as minor components. The lubricating engine oils are useful in internal combustion engines including direct injection, gasoline and diesel engines.