Hydrocarbon adsorption trap for an engine air intake tract

An air cleaner assembly comprising:

• an air cleaner housing having an air inlet port, an air outlet port and defining a chamber therein;
• a filter element disposed in said chamber and configured to filter air flowing between said inlet and outlet ports;
• a hydrocarbon adsorption trap permanently secured to an interior wall of said air cleaner housing, said hydrocarbon adsorption trap comprising:
• a first fuel vapor permeable media retention layer;
• a second media retention layer positioned in a spaced parallel relationship to said first layer forming a gap therebetween,
• wherein at least one of said layers is a woven or non-woven synthetic fiber sheet;
• a hydrocarbon vapor adsorbent media disposed in said gap between said first and second layers for adsorbing evaporated fuel vapors from said intake tract when said engine is not operating;
• and
• a mounting member secured onto and overlaying peripheral edge portions of said first and second layer and projecting outwards beyond said first and second layers,
• said mounting member closing said gap at said layer edge portions, operatively retaining said adsorbent media between said layers;
• wherein said mounting member circumferentially extends along, secures and closes over at least one of said edge portions of said layers,
• wherein said mounting member includes a mounting lip arranged on opposing sides of said trap, said mounting lip arranged outwardly beyond said first and second layers, said mounting lip having at least one through-hole extending therethrough,
• wherein said mounting lip having said at least one through-hole is configured and adapted for securing said hydrocarbon adsorption trap within said air cleaner.