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US 9,174,163 B2Granted
Hydrocarbon trap and method for manufacture
AssigneeFord Global Technologies, LLC
InventorsAndrew George Bellis, Roger Khami, David S. Moyer, Erik Henry Hermann
Life of this patent
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Abstract
A hydrocarbon (HC) trap positioned in an intake conduit of an engine is provided. The HC trap includes a stack of consecutively layered polymeric sheets with at least a portion of the sheets impregnated with a HC vapor adsorption/desorption material, the stack of sheets extending from a first exterior surface to a second exterior surface.
Claims22
A hydrocarbon (HC) trap positioned in an intake conduit of an engine comprising:
- a stack of consecutively layered polymeric sheets with at least a portion of the sheets impregnated with a HC vapor adsorption/desorption material, the stack of sheets extending from a first exterior surface to a second exterior surface.
A method for manufacturing a hydrocarbon (HC) trap comprising:
- thermoforming a HC trap including a stack of consecutively layered polymeric sheets impregnated with a HC vapor adsorption/desorption material extending from a first exterior surface to a second exterior surface, the stack of sheets having no adsorption/desorption material positioned between the sheets.
A hydrocarbon (HC) trap in an intake conduit of an engine comprising:
- a stack of consecutively layered non-woven polyester sheets impregnated with activated carbon extending from a first exterior surface to a second exterior surface, each of the sheets positioned adjacent to one another without any intervening adsorption/desorption material positioned between the sheets, the intervening adsorption/desorption material includes one or more of carbon, activated carbon, zeolites, hydrophobic cellulose, silicon oils, cyclodextrins, and any other HC adsorption/desorption material.
Dependencies are inferred from the claim text.