Tank venting device for a motor vehicle

US8082905B2 · kind B2 · utility

Assignee

• CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

• Wolfgang Mai · Kronberg, DE
• Jens Pache · Kelkheim, DE

Key dates

• Filing date: Dec 1, 2008
• Grant date: Dec 27, 2011
• Expiry date: Mar 24, 2030

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M25/089
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A tank venting device for a motor vehicle has a fuel tank, a fuel vapor accumulator for storing fuel vapors escaping from the fuel tank and a connection line, via which the fuel vapors may flow from the fuel tank into the fuel vapor accumulator. Furthermore, an overpressure line having an overpressure valve is provided, via which the fuel vapors may flow from the fuel tank into the fuel vapor accumulator when the overpressure valve is open. An attachment of the connection line on the fuel vapor accumulator and an attachment of the overpressure line on the fuel vapor accumulator are situated at different points on the fuel vapor accumulator. The operational reliability of a tank venting procedure may thus be increased and the adsorption capacity of the fuel vapor accumulator may be used better.