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US 12,460,608 B2Granted
Methods and systems for an evaporative emission system
AssigneeFord Global Technologies, LLC
InventorAed Dudar
Life of this patent
Estimating the term…
Abstract
Methods and systems are provided for a fuel system. In one example, a method may include adjusting operation of a fuel-operated heater (FOH) in response to a condition of a canister. The FOH is activated and configured to flow heated air to the canister to promote desorption of fuel vapors stored therein.
Claims15
A method, comprising:
- heating air using a fuel-operated heater (FOH);
- routing heated air from the FOH to a canister in an evaporative emissions control system;
- and
- routing vapors from the canister to the FOH, wherein the FOH combusts the vapors.
1 more element
A system, comprising:
- an engine;
- an evaporative emissions control system comprising a canister;
- a fuel tank;
- and
- a fuel-operated heater (FOH) fluidly coupled to the canister, wherein the FOH is fluidly coupled to the canister via a first passage coupled to a purge line of the canister and a second passage coupled to a vent line of the canister, and wherein the first passage comprises a first valve configured to control an amount of vapor flowing to the FOH.
2 more elements
A method, comprising:
- fueling a fuel-operated heater (FOH);
- routing heated air from the FOH to a canister arranged in an evaporative emission control system;
- and
- flowing vapors from the canister to the FOH via a purge line and a first passage, wherein fueling the FOH is adjusted based on a desorption rate of the canister.
1 more element
Dependencies are inferred from the claim text.