Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Aed Dudar0
Date of Patent
April 20, 2021
0Patent Application Number
162183350
Date Filed
December 12, 2018
0Patent Primary Examiner
Patent abstract
Methods and systems are provided for providing improving customer satisfaction during a vehicle fuel tank refueling event. A fuel system is configured with a three-way isolation valve and a four port canister. Fuel tank depressurization is expedited by directing fuel tank vapors to a dedicated depressurization port of the canister.
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