| 摘要 |
<p>The invention relates to a device for purifying exhaust gases from a combustion engine ( 1 ), comprising an arrangement ( 30 ) for recirculating exhaust gases from the engine to an air intake ( 2 ) thereof, a valve device ( 12 ) controlled by a control device ( 13 ) for regulating the relation between fresh air and recirculated exhaust gases supplied to the engine, and a regenerable filter ( 8 ) adapted to catch particulate constituents of the exhaust gases. The device further comprises means ( 14 ) for recording the temperature of the exhaust gases from the engine. The control device ( 13 ) is adapted to be supplied with temperature information from said temperature recording means ( 14 ), the control device ( 13 ) being adapted, with the aid of this temperature information and the valve device ( 12 ), to regulate the relation between fresh air and recirculated exhaust gases supplied to the engine so as to achieve a composition of the exhaust gases from the engine that is favourable with respect to the regeneration of the filter ( 8 ).</p> |
