HRNW: Company said QSK95 diesel engine is first to achieve Tier 4 emissions approval from EPA. Cummins Inc. has received Tier 4 Locomotive certification for its QSK95 diesel, making it the first single prime power engine certified by the U.S. Environmental Protection Agency (EPA), the company said.
At 4400 hp (3281 kW), Cummins said the QSK95 achieves the highest output of any 16-cylinder high-speed diesel and is capable of a top speed of 125 mph (201 km/hr) as a prime mover. Cummins said the engine combines the company’s latest generation Modular Common Rail Fuel System (MCRS), quad-turbocharging and Integrated Selective Catalytic Reduction (SCR) after treatment to deliver reduced noise and strong response in a smaller footprint than that of medium-speed diesels traditionally used in locomotives.
The QSK95 powers Siemens’ Charger, a diesel-electric passenger locomotive that will be put into service by the Dept. of Transportation in Illinois, California, Michigan, Missouri, Washington state and Maryland, as well as Brightline, a privately owned and operated passenger rail service that will connect Miami and Orlando.