The Mitsubishi Low Pressure EGR (LP-EGR) system developed by Mitsubishi Heavy
Industries Marine Machinery & Engine CO., LTD. (MHI-MME) is a system that recirculates a part
of the low pressure exhaust gas emitted from an engine turbocharger outlet to a turbocharger
intake after being scrubbed with the EGR scrubber. We applied the integrated on-engine LP-EGR
system into a 6UEC45LSE-Eco-B2 engine and verified that the system complies with the IMO NOx
Tier III regulations. Furthermore, the verification of long-term reliability and durability is being
conducted by the sea trial and actual commercial voyage with the system installed into a 34,000
DWT bulk carrier. This is the world's first LP-EGR system complied with the IMO NOx Tier III
regulations installed into an actual ship.
