Filtration device for use with a fuel vapor recovery system

A filtration device for filtering air for use with a fuel vapor recovery system, the filtration device comprising:

• a housing, said housing having a longitudinal axis and an arcuate interior surface and an upper end and a lower end, said chamber further including a flow portion and a collection portion, said flow portion adjacent said upper end and said collection portion adjacent said lower end;
• an air inlet associated with said chamber such that said inlet intersects with said arcuate interior surface to form an inlet port at the intersection of said inlet and said arcuate interior surface, said air entering said chamber through said air inlet is directed in a direction tangential to said arcuate interior surface wherein as said air strikes said arcuate interior surface, said arcuate interior surface redirects the flow of said air causing it to rotate in said chamber about said longitudinal axis wherein the centrifugal force of the rotating air filters out contaminants contained therein;
• an air outlet for removing filtered air, said air outlet positioned within said chamber and including an outlet port positioned along the longitudinal axis of the chamber;
• and
• a cap positioned on said upper end, said cap including a barrier wall attached thereto and extending inwardly into said chamber, said barrier wall spaced from said interior surface such that a gap is formed between said barrier wall and said interior surface, said barrier wall extending inwardly into said chamber to a position below said outlet port.

A filtration device for filtering air for use with a fuel vapor recovery system, the filtration device comprising:

• a housing, said housing having a rotational axis and an arcuate interior surface and an upper end and a lower end, said chamber further including a flow portion and a collection portion, said flow portion adjacent said upper end and said collection portion adjacent said lower end, said collection portion including at least one bin for receiving contaminants, said bin including at least one side wall extending upward from said lower end of said chamber;
• an air inlet associated with said chamber such that said inlet intersects with said arcuate interior surface to form an inlet port at the intersection of said inlet and said arcuate interior surface, said air entering said chamber through said air inlet is directed in a direction tangential to said arcuate interior surface wherein as said air strikes said arcuate interior surface, said arcuate interior surface redirects the flow of said air causing it to rotate in said chamber about said rotational axis wherein the centrifugal force of the rotating air filters out contaminants contained therein;
• an air outlet for removing filtered air, said air outlet positioned within said chamber and including an outlet port positioned at one of the following positions, coincident with and spaced from the rotational axis of the chamber;
• and
• a cap positioned on and closing said upper end, said cap including a barrier wall attached thereto and extending inwardly into said chamber, said barrier wall spaced from said interior surface such that a gap is formed between said barrier wall and said interior surface, said barrier wall extending inwardly into said chamber to a position below said outlet port wherein air entering said chamber must flow downwardly past an end of said barrier wall and then upwardly through said gap formed between said barrier wall and said outlet passage prior to exiting said chamber through said outlet port.