| 摘要 |
A venting system for a motor vehicle fuel tank comprises a fuel tank having a filling pipe, an overflow duct, a gas vent duct, a safety valve; fresh air duct for removal of excess fuel vapor from the fuel tank through the fresh air duct. A scavenging duct and an auxiliary valve for overcoming failure of the scavenging duct and/or of the safety valve, in order to ensure that the fuel tank is vented through the fresh air duct are also provided.
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