Device for operating a tank ventilation system of an internal combustion engine

US10941731B2 · kind B2 · utility

Assignee

• VITESCO TECHNOLOGIES GMBH · DE

Inventors

• Gerhard Eser · Munich, DE
• Florian Kleiner · Munich, DE
• Erwin Achleitner · Obertraubling, DE
• Gerhard Haft · Munich, DE

Key dates

• Filing date: Jun 17, 2020
• Grant date: Mar 9, 2021
• Expiry date: Jun 17, 2040

Classification

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

Abstract

The disclosed embodiments relate to a device for operating a tank ventilation system of an internal combustion engine. This device has a fuel tank, an activated carbon filter for collecting and buffering fuel vapors escaping from the fuel tank, a purge air pump and a control unit. The outlet of the purge air pump is connected to the intake tract of the internal combustion engine via a first tank venting valve and connected to the exhaust tract of the internal combustion engine via a second tank venting valve.