Latest C7.1 engine meets Tier 4 Final/Stage IV using SCR

Caterpillar’s industrial engines division is using the C7.1 as a common engine platform as a replacement for the C6.6 as it meets Tier 4 Final/Stage IV emissions regulations. It means the 7.1litre six-cylinder C7.1 offers power ratings from 116kW to 225kW in either single turbo or series turbo configurations, and adds an SCR catalyst and diesel exhaust fluid dosing system as part of the existing exhaust after-treatment process.
January 6, 2017 Read time: 1 min
At Tier 4 Final/Stage IV, the C7.1 offers a 5% total fluid consumption gain over its Tier 4i/Stage IIIb counterpart.
178 Caterpillar’s industrial engines division is using the C7.1 as a common engine platform as a replacement for the C6.6 as it meets Tier 4 Final/Stage IV emissions regulations.

It means the 7.1litre six-cylinder C7.1 offers power ratings from 116kW to 225kW in either single turbo or series turbo configurations, and adds an SCR catalyst and diesel exhaust fluid dosing system as part of the existing exhaust after-treatment process.

This revised emissions control system is now passive – previous versions of the C7.1 engine used a DPF with active regeneration system – and this latest version is said by Cat to have no impact on machine operation.
Cat said this latest C7.1 engine has been proven to have a total fluid consumption – diesel fuel and diesel exhaust fluid – of up to 5% less than its Tier 4i/Stage IIIB predecessor.

Stand: A4, 316

www.cat.com

View more videos
View more stories

For more information on companies in this article

Related Content

  • Volvo Penta’s latest generation diesels meet low emissions targets
    March 7, 2018
    Volvo Penta has a full line-up of diesel engines for the 5, 8, 11, 13 and 16litre capacity range. These are available in low emissions, Stage V compliant variants. For the 5, 8 and 11 litre engines, particulate filters and SCR systems are used in the emissions control package to meet the stage V requirements. Meanwhile the 13 and 16litre engines feature an SCR system that is integrated with the particulate filter. Passive regeneration is used for the particulate filters, so there is no need to stop a machin
    Read More
  • FPT Industrial reveals R22 three-cylinder engine
    January 6, 2017
    FPT Industrial’s latest compact diesel engine is the R22 – a three-cylinder power unit that covers the 33-52kW sector. Based on one of the firm’s VM engine platforms, the R22 has adopted a single canister approach to achieving Tier 4 Final emissions legislation.
    Read More
  • FPT Industrial reveals R22 three-cylinder engine
    March 8, 2014
    FPT Industrial’s latest compact diesel engine is the R22 – a three-cylinder power unit that covers the 33-52kW sector. Based on one of the firm’s VM engine platforms, the R22 has adopted a single canister approach to achieving Tier 4 Final emissions legislation.
    Read More
  • Yanmar reveals Tier 4 Final engine offering
    January 6, 2017
    Yanmar’s industrial engines division used Conexpo to show off its latest compact diesel engine equipped with a diesel particulate filter (DPF). Offering a power rating of 53.7kW at 2500rpm, the 3.3litre 4TNV98CT combines common rail electronic injection and cooled exhaust gas recirculation with the DPF system.
    Read More

Highlighted Content