Carbon Impregnation of porous ducting for evaporative emissions absorption
AssigneeFord Global Technologies, LLC
InventorDonald McAlpine Lawrence
Life of this patent
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Abstract
The present invention discloses a hydrocarbon-removing component for the air intake system of an internal combustion engine which removes hydrocarbons escaping a vehicle when the engine is not in use. The hydrocarbon-removing component of the present invention includes a duct with a hydrocarbon-removing material incorporated in an inner surface. The preferred hydrocarbon-removing material include activated carbon and zeolites.
Claims40
A hydrocarbon-removing component for a vehicle air intake system of an internal combustion engine, the component comprising:
- a duct having an inner surface and a cross-section, the cross-section being of sufficient size to allow air to flow into the internal combustion engine during operation, wherein the duct is part of an air filter;
- and
- a hydrocarbon-removing material;
- wherein the hydrocarbon-removing material is incorporated into the inner surface of the duct and removes hydrocarbons when exposed to the air in the vehicle air intake system when the internal combustion engine is not in use.
A hydrocarbon-removing component for a vehicle air intake system of an internal combustion engine, the component comprising:
- a duct having an inner surface and a cross-section, the cross-section being of sufficient size to allow air to flow into the internal combustion engine during operation, wherein the duct is part of an air filter or a resonator;
- and
- a sheet impregnated with hydrocarbon-removing material;
- wherein the sheet impregnated hydrocarbon-removing material is attached to the inner surface of the duct and removes hydrocarbons when exposed to the air in the vehicle air intake system when the internal combustion engine is not in use.
A method of making a component for removing hydrocarbons from a vehicle air intake system of an internal combustion engine, the method comprising:
- providing a duct having an inner surface and a cross-section, the cross-section being of sufficient size to allow air to flow into the internal combustion engine during operation, wherein the duct is part of an air filter or a resonator;
- and
- adhering a hydrocarbon-removing material to the duct, wherein the component is useable in the vehicle air intake system to remove hydrocarbons from the air intake system while the internal combustion engine in not in operation.
A method of making a component for removing hydrocarbons from a vehicle air intake system of an internal combustion engine, the method comprising:
- combining fibers, a hydrocarbon-removing material, and a binder together to form a premix;
- pressing the premix together to form a sheet;
- cutting the sheet into a pattern rollable into a duct;
- and
- rolling the sheet into a duct that is part of an air filter or a resonator.
A method of making a component for removing hydrocarbons from a vehicle air intake system of an internal combustion engine, the method comprising:
- providing a duct having an inner surface and a cross-section, the cross-section being of sufficient size to allow air to flow into the internal combustion engine during operation, wherein the duct is part of an filter or a resonator;
- and
- attaching a sheet impregnated with a hydrocarbon-removing material to the duct, wherein the component is useable in the vehicle air intake system to remove hydrocarbons from the air intake system while the internal combustion engine in not in operation.
A hydrocarbon-removing component for a vehicle air intake system of an internal combustion engine, the component comprising:
- a duct having an inner surface and a cross-section, the cross-section being of sufficient size to allow air to flow into the internal combustion engine during operation, wherein the duct is part of a resonator;
- and
- a hydrocarbon-removing material;
- wherein the hydrocarbon-removing material is incorporated into the inner surface of the duct and removes hydrocarbons when exposed to the air in the vehicle air intake system when the internal combustion engine is not in use.
Dependencies are inferred from the claim text.