The VTG brings many benefits, such as the considerable fuel reduction of two to five percent. The thermal load on the engine is reduced, which increases the system’s reliability and durability. The VTG reduces smoke emissions and offers new ways to ensure that an engine complies with the latest emissions regulations. VTG also increases operational flexibility in rail applications, among other things by ensuring full engine power and optimal performance, even when a train travels through ambient temperatures ranging from -40 to 50C or from sea level to 2500 meters.
After the VTG was adapted for the TPR, the TPR/VTG solution was certified extensively in several tests for performance, reliability and field at various temperatures and altitudes in China for almost two years. The VTG has been used with turbochargers on mostly power platforms for over a decade and on more than 1,000 engines worldwide. The Smart Loong locomotives will be fitted with ABB TPR turbochargers in late 2014.
“Our tests confirmed the benefits of the VTG technology for applications that move through a wide range of temperatures and altitudes and that are subject to varying ambient pressures and temperatures, such as tunnels and deserts,” said Pierre Jacoby, General Manager Rail Projects at ABB “Chinese trains are subject to such changes throughout their operational life, so it’s critical that they be at their best performance, no matter where they are.”
VTG’s potential for fully utilizing the potential of single-stage, high-pressure turbocharging in rail is already spreading to other continents. ABB’s TPR-VTG turbocharging system will also be tested in Russia on a new medium-speed rail engine, prospectively in the second half of 2014. Companies in India have also expressed an interest in testing VTG technology on their locomotive engines.
ABB Turbocharging in brief
ABB Turbocharging (www.abb.com/turbocharging) is at the helm of the global industry in the manufacture and maintenance of turbochargers for 500 kW to 80+ MW diesel and gas engines. Our leading-edge technology and innovation enables our customers to perform better and produce fewer emissions, even in the toughest terrains. Approximately 200,000 ABB turbochargers are in operation across the globe on ships, power stations, gen-sets, diesel locomotives and large, off-highway vehicles. We have over 100 Service Stations in more than 50 countries globally and a wide service portfolio that guarantees Original Parts and Original Service anytime, anywhere.
ABB (www.abb.com) is a leader in power and automation technologies that enable utility and industry customers to improve their performance while lowering environmental impact. The ABB Group of companies operates in around 100 countries and employs about 150,000 people.