Use of an amide to reduce lubricant temperature

US6759375B2 · kind B2 · utility

Assignee

• The Lubrizol Corporation · US

Inventors

• Thomas Curtis · Boston, US
• Ewa A. Bardasz · Mentor, US
• Daniel H. Heath · Ravenna, US
• Peter Thomson · Danville, US

Key dates

• Filing date: May 23, 2002
• Grant date: Jul 6, 2004
• Expiry date: May 23, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/252
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A sump-lubricated internal combustion engine equipped with exhaust gas recycle, lubricated with (a) an oil of lubricating viscosity, (b) 0.05 to 1 percent by weight of an amide of an aliphatic carboxylic acid, and (c) at least one additional dispersant, detergent, or anti-wear agent, exhibits reduced temperature of the lubricant in the sump.