阅读说明：本技术 废气再处理系统以及用于内燃机的废气再处理的方法 (Exhaust gas aftertreatment system and method for exhaust gas aftertreatment of an internal combustion engine ) 是由 B.赫普费尔德 F-C.巴龙冯塞乌默恩-林登斯特杰纳 S.波克纳 于 2018-06-14 设计创作，主要内容包括：本发明涉及一种用于按照汽油机原理的外源点火的内燃机的废气再处理系统。内燃机在排气口侧与废气设备连接,其中,在废气设备中沿废气通过废气设备的流动方向布置有可电加热的三元催化器,在所述可电加热的三元催化器下游布置有四元催化器,在所述四元催化器的下游布置有另外的三元催化器。在内燃机起动之前,可电加热的三元催化器和优选甚至四元催化器也被加热,以便从内燃机起动起就实现内燃机的未处理排放的有效的废气再处理。废气再处理系统此外设置为,甚至在四元催化器的再生期间也实现有害物质的有效转化,并且以此在机动车的所有运行情况中都保证特别低的排放。(The invention relates to an exhaust gas aftertreatment system for an internal combustion engine ignited from an external source according to the principle of a gasoline engine. The internal combustion engine is connected on the exhaust-gas outlet side to an exhaust-gas system, wherein an electrically heatable three-way catalyst is arranged in the exhaust-gas system in the flow direction of the exhaust gases through the exhaust-gas system, a four-way catalyst is arranged downstream of the electrically heatable three-way catalyst, and a further three-way catalyst is arranged downstream of the four-way catalyst. Before the internal combustion engine is started, the electrically heatable three-way catalyst and preferably even the four-way catalyst are also heated in order to achieve effective exhaust gas aftertreatment of the untreated emissions of the internal combustion engine from the start of the internal combustion engine. The exhaust gas aftertreatment system is furthermore designed to achieve an effective conversion of pollutants even during the regeneration of the quaternary catalyst and thus to ensure particularly low emissions in all operating situations of the motor vehicle.)