Valve system for a fuel tank

US11345231B2 · kind B2 · utility

Assignee

• ALFMEIER PRÄZISION SE · DE

Inventors

• Helmut Auernhammer · Laufenburg (Baden), DE
• Ronny Gehlmann · Hilpoltstein, DE
• Erich Dörfler · Treuchtlingen, DE
• Lawrence Mukaronda · Nuremberg, DE

Key dates

• Filing date: Oct 26, 2018
• Grant date: May 31, 2022
• Expiry date: Oct 26, 2038

Classification

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

Abstract

A valve system includes a housing with a tank connection for connecting to a fuel tank, a filter connection for connecting to an activated carbon filter, and a filling tube connection for connecting to a filling tube of the fuel tank. Both the tank connection and the filter connection and/or the filling tube connection can be in form of a connecting piece, connected directly or indirectly to the fuel tank through a connecting line leading to the fuel tank, the activated carbon filter or the filling tube. The tank connection/filter connection or the tank connection/filling tube connection can be fluidically connected to one another through a main vent duct. The tank connection or a tank-side main vent duct, and the filter connection or a filter-side main vent duct, can be fluidically connected by means of a secondary vent duct.