STENGEL, Ralph,WEBER, Dominic,BROLL, Peter,DAMMER, Daniel
申请号：
WO2017EP00958
公开号：
WO2018036647(A3)
申请日:
2017.08.07
申请国别(地区):
世界知识产权组织国际局
年份:
2018
代理人:
摘要：
The invention relates to an internal combustion engine comprising an aqueous urea injection solution in the exhaust tract, comprising at least one aqueous urea solution tank, at least one pump, at least one suction line leading to the pump, at least one aqueous urea solution metering valve which is connected to the pump, and at least one return flow line which leads from the pump to the aqueous urea solution tank and a filter element which is arranged on the end opposite the pump, and at least one aqueous urea solution sensor which is arranged in the aqueous urea solution tank.
