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US Patent 11603805 Systems and methods for evaporative emissions control

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

Date of Patent

March 14, 2023

Patent Application Number

17453549

Date Filed

November 4, 2021

Patent Citations

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Patent Primary Examiner

CPC Code

Methods and systems are provided for reducing a possibility of hydrocarbon (HC) release to atmosphere from an evaporative emissions control (EVAP) system. In one example, a method may include, isolating a fuel vapor canister of the EVAP system from atmosphere and an engine intake manifold upon conditions being met for a potential hydrocarbon (HC) breakthrough from the fuel vapor canister.

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