Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Aed M. Dudar0
Date of Patent
July 30, 2019
0Patent Application Number
150137200
Date Filed
February 2, 2016
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A method is presented, comprising, during a first condition, including an active refueling event, receiving an indication of hydrocarbon breakthrough from the fuel vapor canister; and restricting flow of fuel vapor through a fuel vapor canister vent pathway responsive to the indication of hydrocarbon breakthrough. Restricting the fuel vapor canister vent pathway will cause fuel tank pressure to increase, thus triggering an automatic shutoff of a refueling dispenser. In this way, the refueling event may be terminated without releasing significant quantities of hydrocarbons into the atmosphere.
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