Patent ID: 8082905

Claim:
A tank venting device for a motor vehicle, comprising a fuel tank, a fuel vapor accumulator for storing fuel vapors escaping from the fuel tank, the fuel vapor accumulator including an activated bed, a connection line, via which the fuel vapors may flow from the fuel tank into the fuel vapor accumulator, an overpressure line having an overpressure valve, via which the fuel vapors may flow from the fuel tank into the fuel vapor accumulator when the overpressure valve is open, a venting line, via which the fuel vapors contained in the fuel vapor accumulator may be supplied to an internal combustion engine, an attachment of the connection line on the fuel vapor accumulator and an attachment of the overpressure line on the fuel vapor accumulator being situated at different points on the fuel vapor accumulator, wherein the attachment of the overpressure line on the fuel vapor accumulator is arranged relative to an attachment of the venting line on the fuel vapor accumulator such that fuel vapor flow from the overpressure line to the venting line necessarily flows through the activated bed of the fuel vapor accumulator, and wherein the attachment of the connection line on the fuel vapor accumulator relative to the attachment of the venting line on the fuel vapor accumulator defines a path for fuel vapor flow from the connection line to the venting line that avoids flowing through the activated bed of the fuel vapor accumulator.