Patent ID: 6939396

Claim:
An apparatus for removing pollutant from ambient air by an adsorption unit ( 8 ) arranged in a vehicle, the vehicle including a combustion engine ( 1 ), having an inlet manifold ( 3 ) and an exhaust manifold ( 4 ), and a ventilation system ( 5 , 6 , 7 , 8 , 9 , 10 , 11 ) for a passenger compartment, characterized in that the apparatus has an adsorption mode which can be operated when the engine is running and when the engine is switched off, whereby the apparatus comprises; the apparatus comprising: a fan ( 11 ) in the ventilation system, a first air inlet ( 6 ) for ambient air, a first air outlet ( 10 ), arranged to supply air to a passenger compartment, an adsorption unit ( 8 ), arranged between said air inlet ( 6 ) and air outlet ( 10 ), wherein the apparatus has an adsorption mode operable when the engine is running and when the engine is switched off and that the apparatus has a desorption mode which can be operated when the engine is running, whereby the apparatus comprises; a second air inlet ( 6 ) for ambient air, a first heating means ( 13 ), arranged to heat the ambient air, the pollution adsorption unit ( 8 ), arranged to be desorbed by said heated ambient air, a second heating means ( 4 , 16 ) for heating the mixture of air and pollutions, which heated mixture is arranged to heat the ambient air in the first heating means ( 13 ), a control valve ( 19 ) positioned between said first heating means and the inlet manifold ( 3 ), which valve is arranged to connect said second air inlet to a source of vacuum provided by the inlet manifold.