公开(公告)号：US10422305B2

公开(公告)日：2019-09-24

申请号：US15806882

申请日：2017-11-08

申请人： MOTORENFABRIK HATZ GMBH & CO. KG

发明人： Tobias Winter ,  Simon Thierfelder ,  Erich Eder ,  Thomas Stieglbauer

IPC分类号： F02M26/24 ,  F02M26/28 ,  F02M26/30 ,  F02M26/32 ,  F02M26/73 ,  F01P3/20 ,  F01P5/10

摘要： A device is provided for exhaust gas recirculation (EGR), in particular in diesel engines, from the exhaust gas tract into the fresh air path of the engine, wherein a cooling device connected to the cooling system of the engine is provided within an EGR section as an exhaust-gas (EG)/coolant heat exchanger, with which an EGR valve for proportioning the EG recirculation rate is associated. The EGR valve is connected to a coolant, and the cooling device comprises an EG pre-cooler and an EG main cooler connected downstream of the EG pre-cooler. The EGR valve is installed between the EG pre-cooler and the EG main cooler in a valve housing between the EG pre-cooler and the EG main cooler. A method for EGR is provided as well.