Venting device for vehicle fuel tanks

US5740842A · kind A · utility

Assignees

• Walter Alfmeier AG Prazisions-Baugruppenelemente · DE
• Mercedes-Benz Group AG · DE

Inventors

• Josef Maier · Eichstätt, DE
• Dieter Simon · Widdern, DE
• Wolfgang Liebhart · Birkenfeld, DE
• Thomas Theuer · Treuchtlingen, DE
• Klaus Müller · Wilhelmsfeld, DE
• Rolf Walter · Waiblingen, DE
• Dieter Scheurenbrandt · Jeffery Road, DE
• Manfred Weil · Schorndorf, DE
• Wolfgang Freiwald · Esslingen am Neckar, DE
• Gerhard Kiermaier · Stuttgart, DE

Key dates

• Filing date: Feb 16, 1996
• Grant date: Apr 21, 1998
• Expiry date: Feb 16, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86332
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A fuel tank arrangement for a motor vehicle. The arrangement includes a fuel tank containing fuel therein and having a gas space disposed above the fuel, and a venting device connected to the fuel tank. The venting device includes an activated charcoal filter and a venting conduit connecting the gas space to the activated charcoal filter for establishing gas communication therebetween. A stop valve is disposed in the venting conduit and is adapted to open gas communication between the gas space and the activated charcoal filter during refueling. Moreover, a fuel separator is disposed in the venting conduit for separating fuel from a gas flow through the venting conduit thereby yielding separated fuel.