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EGR

Exhaust Gas Recirculation (EGR) is an important function for reducing NOx emissions. By recycling gas from the exhaust system to the intake manifold the combustion temperature is reduced out of the range where NOx is produced.

To maximise the reduction in emissions whilst minimising any loss in performance both long loop/LP (exhaust returned from downstream of the DPF) and short loop/HP (exhaust returned from downstream of the exhaust manifold) can be implemented using Helical’s integrated EGR cooler system and exhaust back pressure control valve.

EGR Cooler System