| 摘要 |
Proposed is an exhaust-gas recirculation device comprising a distributor element (14) being driven corresponding to the rotational speed of the camshaft (11) of an internal combustion engine (1), wherein, via the distributor element (14), a fluidic connection can be established from an exhaust-gas inlet channel (13) to respectively one exhaust-gas outlet channel (16) of a plurality of exhaust-gas outlet channels (16) corresponding in number to the cylinders. Advantageously, apart from the distributor element (14), use can be made of a control element (22) which is movable via an actuator (47) and by which the clearing of the fluidic connection between the outlet opening (21) of the distributor element (14) and the exhaust-gas outlet channels (16) of the exhaust gas recirculation device (9) can be shifted in comparison to the phase angle of the camshaft (11). Exhaust-gas recirculation devices of the above type serve for a cylinder-selective recirculation of exhaust gas to the individual cylinders of an internal combustion engine and will operate in a cyclically precise manner. Advantageously, it is further possible to effect a phase shift of the cycle relative to the camshaft, resulting in a considerable reduction of the emissions of an internal combustion engine. An exhaust-gas recirculation device of the above design can also be of relevance for combustion control in novel combustion methods.
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