| 摘要 |
The invention relates to a method and an arrangement for cleaning ambient air by means of an adsorption unit (8) arranged in a vehicle, which vehicle includes a combustion engine (1) and a ventilation system (5, 6, 7, 8, 9, 10, 11) for a passenger compartment. Adsorption can take place whether the engine (1) is running or switched off. In adsorption mode, a fan (11) is operated to force ambient air from an inlet (6) to the ventilation system in a first direction, through an adsorption unit (8), and out of an outlet (10) of the ventilation system. In desorption mode the engine is running, whereby air is supplied to a first heating means (13). The heated air is passed through the adsorption unit (8) in order to release the pollutants and regenerate said unit. The air containing said pollutants is passed through a second heating means (4, 16) and is then passed through the first heating means (13) in order to heat the said ambient air. Finally, the polluted air is drawn from the heat exchanger (13) to an intake conduit (3) of the combustion engine (1). <IMAGE>
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