Feeding arrangement for a liquid additive for an internal-combustion-engine

US8201577B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Andreas Bruhn · Puchheim, DE
• Jonas Wachter · Garching bei München, DE
• Udo Strathoff · Munich, DE
• Guenther Schneider · Aichach, DE

Key dates

• Filing date: Jul 31, 2009
• Grant date: Jun 19, 2012
• Expiry date: Dec 24, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86187
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An arrangement is provided for feeding a liquid additive from a receptacle into a fuel pipe or into an exhaust line of an internal-combustion engine of a motor vehicle. The receptacle is fillable with additive from a larger storage tank that is also accommodated in the motor vehicle by way of a connection line that can be blocked by a shut-off element. A pump is installed in the receptacle or in the connection line. A heating device for heating at least a partial volume of the additive is present in the receptacle. A blockable return line branches off into the receptacle from the connection line between the pump and the shut-off element.