In-house developed diesel engine with modular SCR filter system
At this year’s Pollutec, Liebherr presents a solution to comply with the EU emissions standard of the future stage V for diesel engines. The SCR filter is already for diesel engines stage IV as well as the Swiss market. The SCR filter complies with the regulations planned for diesel engines stage V and is now being used in machines for tunnel construction. The SCR filter system is part of the modular Liebherr engine concept, extremely compact and is characterised by long service intervals of over 4,500 hours.
The SCR filter system from Liebherr comprises a maintenance-free DOC catalytic converter, a SCR catalytic converter with passive regeneration and a SCR-coated particulate filter. As a result, the maintenance intervals can be stretched to more than 4,500 operating hours. With the in-house development of engines, injection systems, engine controls and exhaust gas after treatment solutions Liebherr enables high system integration. High efficiency stage can be achieved with simultaneous low fuel consumption. As an all-in-one solution, the further developed ECU3 engine control unit comprises all control functions for engines up to 560 kW and also for exhaust gas after treatment.