Dual-charged internal combustion engine, especially for vehicle, has charger pressure outlet connected to intake inlet and to intake pipe via butterfly valves; charge cooler is integrated into intake pipe to give intake/charge cooler module

摘要

The engine has an intake air path with a charge unit connected by a coupling (36), an exhaust gas turbocharger (18), an intake pipe (32) connected to cylinder block air inlets and a charge cooler (34). A charge unit pressure outlet (35) is directly connected to the intake pipe and an exhaust gas charger pressure outlet (24) is connected to an intake inlet (28). The charger pressure outlet is connected to the intake inlet via a butterfly valve (26) and to the intake pipe via a butterfly valve (30). The charge cooler is integrated into the intake pipe to give an intake/charge cooler module. An independent claim is also included for a method of operating an internal combustion engine.