Adsorptive duct for contaminant removal, and methods
OwnerSteven Alan Carter, Jordan Spencer Flagstad +3inventors
InventorsSteven Alan Carter, Jordan Spencer Flagstad, Lefei Ding, Jon Dennis Joriman, Andrew James Dallas
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Abstract
A duct for passage of air therethough; one particular use for the duct is as a passage for intake air for a vehicle engine. The duct has an interior, adsorptive region that is adapted to remove contaminants from the air stream passing therethrough. The adsorptive region includes adsorptive material such as carbon (usually activated carbon), activated alumina, zeolites, metal oxides or ion exchange resin. The duct inhibits diffusion of uncombusted gasoline back through the duct from the engine, after the engine has been shut off.
Claims14
An adsorptive duct comprising:
- (a) a hollow duct body having a first end, a second end and a passage extending therethrough from the first end to the second end, the passage having an inner exposed surface;
- and
- (b) an adsorptive region present within the duct body, at least a portion of the adsorptive region defining the inner surface, the adsorptive region comprising an adsorptive material.
A method of making an adsorptive duct, the method comprising the steps of:
- (a) forming a hollow duct body having an inner surface and defining a passage;
- and
- (b) forming an adsorptive region comprising an adsorptive material, the inner surface of the duct body comprising at least a portion of the adsorptive region.
Dependencies are inferred from the claim text.