Method for heating up a catalytic converter

US8402747B2 · kind B2 · utility

Assignee

• VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

• Michael Zillmer · Sickte, DE
• Ekkehard Pott · Gifhorn, DE
• Matthias Holz · Lehre, DE
• Kai Philipp · Wasserburg am Inn, DE

Key dates

• Filing date: Feb 23, 2004
• Grant date: Mar 26, 2013
• Expiry date: Oct 18, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

At least one chemical heating measure, which causes an increase in the catalytic converter temperature essentially by introducing into the exhaust gas channel additional chemical energy in excess of energy provided at an initial engine operating point, is combined with at least one thermal heating measure, which causes an increase in the catalytic converter temperature essentially by introducing into the exhaust gas channel additional thermal energy in excess of energy provided at an initial engine operating point, so that a major fraction of the chemical energy is introduced temporally before a major fraction of the thermal energy is introduced.