Patent · US Expired

Internal combustion engine

US6886548B2 · kind B2 · utility

3Cited by

4References

16Claims

0Family size

Assignees

VOLKSWAGEN AKTIENGESELLSCHAFT · DE
OMT, Inc. · US

Inventors

Gerrit Suck · Lehrte, DE
Gunter Sohlke · Gifhorn, DE
Detlev Repenning · Ahlberg, DE

Key dates

Filing date	Apr 4, 2002
Grant date	May 3, 2005
Priority date	—
Expiry date	Apr 4, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An internal combustion engine having a cylinder and a piston movable in the cylinder, the cylinder and piston defining a combustion chamber enclosed by the cylinder and the piston, a surface of at least one of at least one component of the combustion chamber and an adjoining space that comes into contact with at least one of a fuel-air mixture to be combusted and with motor oil has, at least in certain areas, a catalytic coating for oxidizing carbonization residues, the coating consists of a ternary vanadium oxide compound and at least one other compound of at least one metal oxide, the metal oxide is at least one of the group consisting of a cerium oxide, an oxide of another rare-earth metal, an oxide of lanthanum (La), and an oxide of a transition metal.

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