CATALYST SUBASSEMBLY, DEVICE COMPRISING SAME FOR PURIFYING EXHAUST GASES FROM AN INTERNAL COMBUSTION ENGINE, MODULAR SYSTEM FOR THE SUBASSEMBLY, AND METHOD FOR MANUFACTURING THE SUBASSEMBLY

摘要

A catalyst subassembly for a device for purifying exhaust gases from an internal combustion engine, in particular a diesel engine, includes an SCRF catalyst and an SCR catalyst upstream of the SCRF catalyst. The two catalysts are arranged in a common catalyst housing. The catalyst housing, the SCRF catalyst and the SCR catalyst can be selected from a modular system for different variants of the internal combustion engine.