Patent · US Active

Lubrication

US8017565B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

Infineum International Limited · GB

Inventors

Christopher Locke · Shrewsbury, GB
Angela Keeney · Abingdon, GB

Key dates

Filing date	Feb 12, 2007
Grant date	Sep 13, 2011
Priority date	—
Expiry date	May 13, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2070/02
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Intake valve deposits in a direct injection internal combustion engine are reduced by lubricating the engine with a lubricant that is substantially free of ashless organic friction modifiers and whose base oil has a Noack volatility of less than 12 mass %.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.