Tank ventilation system for a motor vehicle

摘要

A tank ventilation system for a motor vehicle has a fuel tank, a fuel vapor store which is connected to a fuel tank, and a ventilating device which is connected to the fuel vapor store, in order to ventilate the latter. The ventilating device has an aeration line which opens in an interior space of the motor vehicle, which interior space is delimited on all sides by vehicle body parts from the surroundings of the motor vehicle.

主权项

1. A tank ventilation system for a motor vehicle, comprising:
a fuel tank; a fuel vapor accumulator which is connected with the fuel tank; a ventilation device connected with the fuel vapor accumulator to ventilate the fuel vapor accumulator, said ventilation device including an aeration line which opens into an internal space which is delimited on all sides by vehicle body parts, and at least one aeration valve to enable a gas flow from the aeration line to the fuel vapor accumulator but prevents a backflow; and a further fuel vapor accumulator arranged in the aeration line, said at least one aeration valve and the further fuel vapor accumulator being integrated in a structural unit, said structural unit including a particle filter to filter particles present in the aeration line, said particle filter having a coating which stores hydrocarbons.