Cummins develops and introduces cleaner engines

Cummins is proceeding on track with its plan to meet the Stage V European emissions requirements. The firm has so far completed 100 Stage V customer installations across a range of off-highway machine types including compressors, back-hoe loaders, dump trucks, drills, pavers, cranes, excavators and wheeled loaders. The firm is now offering Stage V engines with power outputs from 74-503kW and claims the units offer higher performance, more reliability, better productivity, improved fuel efficiency and
February 28, 2018 Read time: 2 mins
Cummins has clean engine solutions to meet Stage V requirements

196 Cummins is proceeding on track with its plan to meet the Stage V European emissions requirements. The firm has so far completed 100 Stage V customer installations across a range of off-highway machine types including compressors, back-hoe loaders, dump trucks, drills, pavers, cranes, excavators and wheeled loaders.

The firm is now offering Stage V engines with power outputs from 74-503kW and claims the units offer higher performance, more reliability, better productivity, improved fuel efficiency and extended service intervals. The engines are said to be more compact with less weight, less to cool, less installation complexity and lower installation cost for manufacturers.

The novel Single Module aftertreatment and its higher NOx conversion capability has supported the removal of EGR from engines in the 3.8-9litre range. Cummins B6.7 and L9 Stage V engines both offer higher power output and torque. The Stage V B6.7 can now deliver up to 243kW, with a 30% increase in peak torque to 1375Nm. The L9 maximum power has been increased by23kW to 321kW for Stage V, as well as a 13% increase in peak torque to 1846Nm.

The F3.8 and B4.5 engines will also be ready prior to the required date of 2020, with increases in power and torque for Stage V. The 3.8litre moves from 97kW at Stage IV to 129kW at Stage V, while the 4.5litre engine jumps from 129kW to 149kW. Peak torque of the F3.8 increases by more than 20%, to 620 Nm, and an 11% increase moves the B4.5 up to 780Nm.

A key benefit of the new Stage V engines from Cummins is that they are more tolerant of high sulphur fuels than the earlier low emission diesels. A spokesperson for the firm explained that this is because the new Stage V emissions system does not use EGR technology. Moisture used to develop in the EGR and this turned acidic due to the presence of sulphur, leading to internal corrosion.

For more information on companies in this article

Related Content

  • Cleaner power
    February 8, 2012
    Perkins is powering up with a new line of Tier 4 Interim/Stage IIIB compliant range of industrial engines. These diesels are said to offer an increase in power and torque as well as the number of options available. These power packages comprise engine, aftertreatment, radiator, air cleaner and optional compressor, which can all be mounted on a base frame. The first commercially available package will be the 1206E, a 7litre, six cylinder engine capable of producing up to 205kW.
    Read More
  • Milling machine developments to boost efficiency
    October 20, 2016
    A series of developments in the milling machine market will give customers both greater choice and performance – Mike Woof writes. Competition is heating up in the market for milling machines, which has been dominated for many years by Wirtgen. The German firm still retains a strong share of this market, but is now facing much tougher levels of competition from key rivals, and Atlas Copco, BOMAG, Caterpillar and Roadtec in particular. Meanwhile the market is also seeing the return of another familiar nam
    Read More
  • Improved low emission engines developed by Kohler
    March 7, 2018
    An improved range of diesel engines has been developed by Kohler and its Italian business, Lombardini. The new diesels utilise the KOHLER Flex package, an integrated suite of engine systems. The firm is offering a single engine platform for world market, while being able to meet the new Stage V requirements. The new engine platform is designed to meet needs from customers for greater application flexibility, as well as compliance with the various emissions limits. Meanwhile the engines also offer high perf
    Read More
  • Advances in compact compaction and compact loading machines coming to market
    September 11, 2014
    Key developments are being seen in the markets for compact compaction and loading machines - Mike Woof writes Various new utility machines are now coming to market aimed at the rental segment, with advances in small compaction and loading tools proving particularly popular. These will benefit from the latest low emission engines while delivering increased power and performance, as well as being easier and more comfortable to use.
    Read More

Highlighted Content