Turbocharger package cuts emissions and boosts fuel efficiency
Cummins’ latest turbocharger innovation has been extended to the 500-series, with an electronically wastegated turbocharger that delivers efficiency gains of up to 8% as a result of changes to the exhaust turbine. By more closely matching turbine wheels to the compressor, greater fuel efficiency is achieveable, said the firm. The 500-series turbocharger is also said to offer improved resistance to oil leakage by 200% over the current industry standard.
April 24, 2018
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Revised turbocharger means better turbine efficiency
196 Cummins’ latest turbocharger innovation has been extended to the 500-series, with an electronically wastegated turbocharger that delivers efficiency gains of up to 8% as a result of changes to the exhaust turbine. By more closely matching turbine wheels to the compressor, greater fuel efficiency is achieveable, said the firm. The 500-series turbocharger is also said to offer improved resistance to oil leakage by 200% over the current industry standard.
Engines and drivelines technologies have move forward, as could be seen at Conexpo 2014 - Geoff Ascroft reports
Solutions for Tier 4 Final emissions regulations dominated Conexpo 2014, with many firms showing off their options of DOC, DPF and SCR after-treatments.
Deutz, while staying with an SCR-only solution, took a more unusual approach on its high horsepower V6 12litre and V8 16litre engines. Both get a dual SCR after treatment system to meet Tier 4 Final emission standards. Using a dual SCR system,
Engine manufacturers have had to jump through regulatory hoops in recent years, meeting requirements for diesels with ever cleaner exhaust emissions. When this programme was first proposed, many believed the final aims could not be achieved. However on January 1st 2011, the Tier 4 Interim/Stage IIIB emissions regulations will come into force in North America and Europe and all the major diesel manufacturers will have suitable products at the ready. The Tier 4 Interim/Stage IIIB emissions regulations require
Cummins has revealed a new generation of ultra-low emission diesel engines that have been engineered to meet forthcoming EU Stage V emissions regulations. The engines include F3.8, B4.5, B6.7 and L9 variants with capacities from 3.8-9litre and spanning 75-321kW. Importantly, all have ditched EGR, creating a mechanically simpler package that delivers more power, more torque and lower fluid consumption, said Cummins - while maintaining the same capacity as the engines they replace.
“Removing EGR allowed us
World events are driving the new focus on fuel economy for diesel engine development Spiralling fuel prices have put a new spin on technological developments in the engine and driveline sector. Recent legislation has been pushing manufacturers to develop cleaner running engines that are quieter and offer drastic reductions in exhaust emissions. For the engine and driveline manufacturers, research and development aimed at reducing engine fuel consumption is in hand but the market conditions have placed fresh
