Ventilation device for fuel system of combustion engine

摘要

The system's first adsorption filter (4) is fitted in the area of the combustion engine, and in the closed position of the regeneration valve (7) the fuel vapours from the fuel tank (2) enter the second adsorption filter (5), and in the open position of the regeneration valve vapours flow through the first adsorption filter. The first adsorption filter has a structural volume that is smaller than that of the second absorption filter, and also has an accumulating space which lies between the connecting pipe (11) and the adsorption medium.