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

  • Cummins launches SCR only Stage IV/Tier 4 engines
    April 16, 2013
    Cummins used bauma to reveal the QSF3.8 – a four-cylinder engine platform delivering a power range of 63-89kW – which is ready to meet Stage IV/Tier 4 Final emissions regulations. Using only SCR for its exhaust after-treatment process, the QSF3.8 avoids the need for either DOC or DPF as a result of using a high-efficiency catalyst to convert oxides of nitrogen at lower exhaust temperatures while requiring only low doses of DEF, said the company.
    Read More
  • Hydrema updates 912HM dump truck
    January 6, 2017
    Hydrema has revised its 912 range of articulated dump trucks, with a move from Perkins power to a Cummins Tier 4 Interim/Stage IIIB motor. The QSB4.5L engine delivers 105kW of power, up 8% on the previous model, but more importantly has 20% more torque, at 620Nm. Despite the increased output, Hydrema claims similar fuel consumption to the previous ADT line-up. The engine sits beneath a redesigned canopy that lifts clear of the chassis to provide easy access to the engine and driveline. The trucks also feat
    Read More
  • New more efficient tools for loading and hauling duties
    September 30, 2013
    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
    Read More
  • Key moves for diesel engine sector
    January 22, 2014
    A series of key moves are being seen in the diesel engine sector, with major firms offering new solutions – Mike Woof writes Several of the major engine builders are introducing key innovations from the beginning of 2014 to meet with tough new emissions regulations for Europe and the US. Another key issue is providing solutions for engine customers in countries with less stringent regulations on emissions. Caterpillar has developed options for customers in lesser regulated countries who may wish to buy seco
    Read More

Highlighted Content