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.
New legislation has changed fuel specifications as well as engine emission requirements, writes Claire Symes. The latest Stage IIIB engines mean that on-site maintenance routines for newer equipment need to be changed. And at the same time, new fuel specifications also mean changes to management of fuel for all machines. The European standard for gas oil, EN590, changed at the start of the year in order to comply with the Renewable Energy and Fuel Quality Directives. This means fuels now must be low sulphur
FPT Industrial is rolling out a range of new low emission engines for the off-highway sector that meet the European Stage V and US Tier 4 Final requirements. These diesels benefit from proven technology that the firm has already utilised in the on-highway sector in the engines for Iveco, its sister company within the Fiat Group. The basic engine designs are the F36, N45, N67 and V20 models, with capacities of 3.6litres, 4.5litres, 6.7litres and 20 litres respectively. The F36 replaces the earlier 3.4litre
The first Chinese-built Liebherr R 922 crawler excavators for low regulated markets are now operating in China. The firm has developed three machines weighing from 20-25 tonnes specifically for customers in low regulated markets. The R 922 crawler excavator sits in the middle of this three-model range, which also includes the R 920 and R 924, and one of the first units from the series is being used for earthmoving work in China. The machine meets the Stage IIIA/ Tier 3/CHINA III emissions, which allows it
A number of key manufacturers are offering major improvements to their product offerings for loading and excavating. Key developments have been seen in engines and transmissions in particular, with vast reductions in emissions as well as improved fuel economy and working efficiency.
Caterpillar’s 966K XE wheeled loader is one of the firm’s most sophisticated new models, with power from a 240kW diesel being delivered through an innovative continuously variable transmission (CVT). This technology is new t
