Patent ID: 6955159
Filing Date: 2005-10-18
Classification: F02M

Abstract:
1. A carbon canister comprising: first and second chambers which are coaxially arranged and have substantially the same cross sectional area; first and second activated charcoal masses respectively received in the first and second chambers; a labyrinth structure arranged between respective first ends of the first and second chambers so that the first and second chambers are connected through a limited fluid communication; an atmospheric air inlet port provided by a second end of the second chamber; a third chamber arranged beside the coaxially arranged first and second chambers, the third chamber having a first end positioned near a second end of the first chamber and a second end positioned near the second end of the second chamber; a third activated charcoal mass received in the third chamber; a connector passage extending between the second end of the first chamber and the first end of the third chamber to provide a fluid connection between the first and third chambers; a fuel vapor inlet port provided by the second end of the third chamber; and a fuel vapor outlet port provided by the second end of the third chamber.