System and method for purging fuel vapors using exhaust gas
First Claim
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1. A system for a vehicle, comprising:
- an engine; and
a fuel vapor storage system coupled to the engine configured to store and release fuel vapors, the system further configured to mute exhaust gas from the engine to the storage system and where adsorbed vapors are released into the exhaust gas before the exhaust gas is re-inducted into the engine to be burned.
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Abstract
A system for a vehicle, comprising of an engine, and a fuel vapor storage system coupled to the engine configured to store and release fuel vapors, the system further configured to route exhaust gas from the engine to the vapor storage system and where adsorbed vapors are released into the exhaust gas before the exhaust gas is re-inducted into the engine to be burned.
50 Citations
20 Claims
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1. A system for a vehicle, comprising:
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an engine; and a fuel vapor storage system coupled to the engine configured to store and release fuel vapors, the system further configured to mute exhaust gas from the engine to the storage system and where adsorbed vapors are released into the exhaust gas before the exhaust gas is re-inducted into the engine to be burned. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for a vehicle, comprising:
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an engine having an intake manifold and an exhaust manifold; a fuel vapor storage system coupled to the engine configured to store and release fuel vapors; an exhaust side passage to route exhaust gas from said exhaust manifold to said fuel vapor storage system; an intake side passage to route gas from said fuel vapor storage system to said intake manifold; a valve coupled in the system, said valve configured to adjust an amount of gas flowing through the fuel vapor storage system; and a controller configured to adjust said valve as an operating condition of the system varies, said controller adjusting said valve white routing exhaust gas from the exhaust manifold via said exhaust side passage, through the fuel vapor storage system to the intake side passage, and into the intake manifold. - View Dependent Claims (12, 13, 14)
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15. A method for operating an engine of a vehicle, the vehicle having a fuel tank and a fuel vapor storage system coupled to the engine, the method comprising:
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adjusting an amount of exhaust gas fed to the fuel vapor storage system; releasing vapors stored in the fuel vapor storage system into said fed exhaust gas; and routing said exhaust gas from the fuel vapor storage system to an intake manifold of the engine so that the exhaust gas is re-inducted into the engine to be burned carrying released fuel vapors. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification