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High Octane Lubricants for Knock Mitigation in Flame Propagation Engines

Abstract: 

This invention includes a lubricant composition comprising a base oil and one or more additives, wherein the composition has an elevated pressure auto ignition temperature of at least about 500 K. This invention also includes a lubricant composition comprising a base oil and one or more additives, wherein the composition has an octane number ((R+M)/2) of at least about 80. This invention also includes a lubricant composition for reducing the propensity of end gas knock in a flame propagation engine, comprising: a base oil and one or more additives, wherein the composition has an average boiling point in excess of 200.degree. C.

Patent Number: 
7,262,155
Date Of Issue: 
08/28/2007
Inventors: 

Thomas W. Ryan III; Jack A. Smith