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The MPI HSP46 is a four-axle AC-traction diesel-electric locomotive for commuter trains, designed and assembled by MotivePower.It meets EPA Tier 3 emissions standards. The launch customer is the Massachusetts Bay Transportation Authority (MBTA), whose first unit entered revenue service in April 2014.
In 2007, BEC unveiled its CoGeneration [clarification needed] locomotives with up to 2,100 horsepower (1,600 kW), generated through the use of three low-emission diesel engines. The use of three clean-burning EPA Tier-3 engines offers a "Power on Demand" feature where engines come on-line as power needs are realized.
# of engines Engine type Image MP-900 B-B 1999–2022 900 horsepower (671 kW) 2 Cummins QSX15 (I6) Tier 2 See here: B-B 2009–2022 2 Cummins QSX15 (I6) Tier 3 B-B 2012–2022 2 Cummins QSX15 (I6) Tier 4 MP-1200 B-B 2012–2022 1,200 horsepower (895 kW) 2 Cummins QSX15 (I6) Tier 4 MP-1500 B-B 2007–2022 1,500 horsepower (1,120 kW) 2
The Tier I standard was adopted in 1991 and was phased in from 1994 to 1997. Tier II standards were phased in from 2004 to 2009. Within the Tier II ranking, there is a subranking ranging from BIN 1–10, with 1 being the cleanest (Zero Emission vehicle) and 10 being the dirtiest.
The following is a list of diesel-electric locomotives that meet or exceed EPA Tier 3 locomotive emissions regulations. Subcategories This category has only the following subcategory.
It is designed to both meet the EPA's stringent Tier 4 emissions standard and offer higher performance than the MP40PH-3C. The MP54AC is a genset locomotive , using a pair of Cummins QSK60 60-liter, 16-cylinder engines rated at 2,700 hp each (5,400 hp total) and during periods of low power demand, the locomotive can operate on just one engine ...
The engine fires with 15% lower internal pressure to improve emissions and features fewer internal components in the inverter. [8] The SD70ACe is equipped with EMD's 16-710-G3C-T2 prime mover, rated at 4,300 horsepower (3,200 kW); later Tier 3 models are rated at 4,500 horsepower (3,400 kW), and have a thermal efficiency of almost 36%. [9]
The NRE 3GS21B is a low-emissions diesel genset locomotive built by National Railway Equipment (NRE). Instead of a single prime mover, the NRE genset locomotive is powered by three separate 700 horsepower (522 kW) Cummins QSK19C engines providing a total power output of 2,100 horsepower (1,570 kW).