Emission control devices for air intake systems

Abstract

An emission control device for air intake system includes an extending conduit ( 400 ) and an adsorbing element ( 300 ) disposed about the conduit, wherein the adsorbing element comprises a substrate and an adsorbent material disposed substantially throughout the substrate. When the conduit includes an indentation portion ( 403 ) and an opening ( 404 ) located about the indentation portion, the adsorbing element may be disposed on at least a portion of the indention to cover at least a portion of the opening, and the closure element ( 105 ) may be used to secure the adsorbing element to the indentation portion. The air intake tube of the air intake system may be designed to include an indentation portion and an opening located about the indentation portion such that an adsorbent sheet with adsorbent material disposed substantially therethrough may wrap around at least a portion of the indentation and cover at least a portion of the opening.

We claim: 
     
         1 . An emission control device for an air intake system, comprising:
 an extending conduit connecting to an air intake tube, the extending conduit having an interior surface and an exterior surface; and   an adsorbing element positioned adjacent to the extending conduit, the adsorbing element comprising a substrate and an adsorbent material disposed substantially throughout the substrate.   
     
     
         2 . The device of  claim 1 , wherein the adsorbing element is disposed on substantially entire interior surface of the extending conduit. 
     
     
         3 . The device of  claim 1 , wherein the adsorbing element is disposed on the exterior surface of the extending conduit. 
     
     
         4 . The device of  claim 3 , wherein the adsorbing element is removably disposed on the exterior surface of the extending conduit. 
     
     
         5 . The device of  claim 1 , wherein:
 the extending conduit comprises an indentation portion and an opening located about the indentation portion;   the adsorbing element positions about at least a portion of the indentation portion and covers at least a portion of the opening; and   the device further comprises a closure element securing the adsorbing element to the extending conduit.   
     
     
         6 . The device of  claim 5 , wherein the adsorbing element wraps around substantial indentation portion and covers substantially entire opening. 
     
     
         7 . The device of  claim 5 , wherein the adsorbing element is removably disposed about the indentation portion. 
     
     
         8 . The device of  claim 5 , wherein the closure element is positioned on the adsorbing element. 
     
     
         9 . The device of  claim 5 , wherein the closure element is positioned over substantially entire adsorbing element. 
     
     
         10 . The device of  claim 5 , wherein the closure element includes a first component and a second component configured and adapted to engage the first component and secure the adsorbing element to the extending conduit. 
     
     
         11 . The device of  claim 10 , wherein the first component is configured and adapted to releasably engage the second component. 
     
     
         12 . The device of  claim 1 , wherein the substrate includes a member selected from the group consisting of paper, plastic, foam, composite, membrane, woven fabric, non-woven fabric, and combinations thereof. 
     
     
         13 . The device of  claim 1 , wherein the absorbent includes a member selected from the group consisting of activated carbon, charcoal, zeolite, kaolin, titania, ceria, and combinations thereof. 
     
     
         14 . The device of  claim 1 , wherein the adsorbing element comprises an activated carbon sheet. 
     
     
         15 . The device of  claim 1 , wherein the extending conduit comprises a material selected from the group consisting of plastic, rubber, metallic, galvanized steel, stainless steel, aluminum, composite, powder coated metal, and combinations thereof. 
     
     
         16 . An emission control device for an air intake system, comprising:
 a conduit including an indentation portion and an opening located about the indentation portion;   an adsorbent sheet wrapping around at least a portion of the indentation portion and covering at least a portion of the opening, the adsorbent sheet comprising a substrate and an adsorbent material disposed substantially throughout the substrate; and   a closure element securing the adsorbent sheet to the conduit.   
     
     
         17 . The device of  claim 16 , wherein the conduit is an extending conduit connecting to the air intake ductwork. 
     
     
         18 . The device of  claim 16 , wherein the conduit is an air intake tube. 
     
     
         19 . The device of  claim 16 , wherein the conduit comprises a material selected from the group consisting of plastic, rubber, metallic, galvanized steel, stainless steel, aluminum, composite, powder coated metal, and combinations thereof. 
     
     
         20 . The device of  claim 16 , wherein the adsorbent sheet removably wraps about the indentation portion. 
     
     
         21 . The device of  claim 16 , wherein the closure element includes a first component and a second component configured and adapted to engage the first component and secure the adsorbent sheet to the extending conduit. 
     
     
         22 . The device of  claim 21 , wherein the second component is configured and adapted to releasably engage the first component. 
     
     
         23 . The device of  claim 16 , wherein the adsorbent sheet includes a substrate selected from the group consisting of paper, plastic, foam, composite, membrane, woven fabric, non-woven fabric, and combinations thereof. 
     
     
         24 . The device of  claim 16 , wherein the absorbent sheet includes an adsorbent selected from the group consisting of activated carbon, charcoal, zeolite, kaolin, titania, ceria, and combinations thereof. 
     
     
         25 . The device of  claim 16 , wherein the adsorbent sheet comprises an activated carbon sheet.