Patent · US Active

Lubricating oil compositions

US8759262B2 · kind B2 · utility

1Cited by

1References

23Claims

0Family size

Assignee

Infineum International Limited · GB

Inventors

Matthew Irving · Abingdon, GB
Stephen Arrowsmith · Woodstock, GB

Key dates

Filing date	Dec 20, 2006
Grant date	Jun 24, 2014
Priority date	—
Expiry date	Nov 5, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2040/252
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A lubricating oil composition for internal combustion engines, particularly heavy duty diesel (HDD) engines, having reduced phosphorus, sulfur and sulfated ash contents that provide excellent piston cleanliness performance and contain an amount of phenate detergent that introduces a relatively large amount of phenate soap into the lubricating oil composition.

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