Plastic Omnium Advanced Innovation and Research

David Hill

Jules-Joseph Van Schaftingen

Joel Op De Beeck

Laurent Duez

Antoine Chaussinand

Mihai Baja

Mitoun Guiry

A fuel tank venting system for an automotive vehicle comprising: a fuel tank comprising a vapor dome, a refueling pipe, a fuel vapor trap that is connected to the fuel tank by an inlet conduit, wherein the inlet conduit is connected with the fuel tank through an orifice which is permanently open, the orifice being arranged in the vapor dome of the fuel tank in a static condition and a normally closed shutter device that communicates with the atmosphere and that is connected to the fuel vapor trap by an outlet conduit, the normally closed shutter device comprising an electrically-actuated valve being closed when the electrically-actuated valve is de-energized, wherein the normally closed shutter device is configured to be open during vehicle refueling process and to be closed when the fuel in the fuel tank reaches a predetermined fill level and when the vehicle is in normal operation.

Fuel tank venting system

The invention relates to a leak detection system on board of a vehicle comprising a fuel tank (), a filler pipe (), a venting line () for recirculating fuel vapors from the tank to the filler pipe, said system having a combination pressure and temperature sensor mounted in the vapor dome of the fuel tank, and a pressure sensor located in the recirculation line above the highest possible liquid level that could be present in the recirculation line and to methods to detect said leak.

Leak detection system

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Brussels, Belgium

David Hill