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

  • New developments in earthmoving with radical loader and excavator designs
    March 15, 2017
    The market is seeing new wheeled loader and excavator models coming to market, including some radical new designs - Mike Woof writes. The global market for earthmoving machines is seeing some important developments. Manufacturers are now offering separate machines for customers in developed and developing markets. Meanwhile there are also some innovative concepts being made available. One of the most notable new earthmovers is the innovative VL70A vertical lift wheeled loader from LiuGong. This model featur
    Read More
  • Earthmoving market introductions
    February 11, 2020
    Earthmoving innovations are coming to market in the shape of new excavators and wheeled loaders
    Read More
  • Yanmar extends its engine line up to 155kW
    March 12, 2018
    Yanmar says it is launching its most impressive line-up development for 20 years, with two brand new engine families. The 4TN101 is a 3.8litre displacement engine, which lines up in the 55-105kW power range with torque up to 550Nm, while the 4TN107 has a 4.6litre displacement with power ratings ranging from 90-155kW and torque exceeding 805Nm. Both engines feature a Common Rail injection system, full authority electronics and after-cooled turbocharging (with a two-stage turbo on the 4TN107 upper ratings).
    Read More
  • Major firms are offering key diesel developments
    September 26, 2013
    New diesel developments from JCB and Volvo Innovative diesel technologies are being developed by all the major engine manufacturers at present. New emission requirements have pushed the boundaries in terms of technology, with all the firms working on new systems to ensure their products meet requirements. And companies are also developing new engine sizes to broaden their range of offerings to the market.
    Read More

Highlighted Content