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 chooses SCR for its Tier 4 Final solution
    January 6, 2017
    Volvo Penta now offers Tier 4 Final emissions-compliant engines from 106-523kW. The range comes in 5-, 8-, 11-, 13- and 16litre capacities and suits a host of off-road applications, including material handling, construction, quarrying and mining. Achieving Tier 4 Final emissions sees Volvo Penta opting for selective catalytic reduction (SCR) technology. The system performs without regeneration or a diesel particulate filter making it a simpler, more versatile and a less costly option for customers, said the
    Read More
  • Volvo Penta chooses SCR for its Tier 4 Final solution
    March 6, 2014
    Volvo Penta now offers Tier 4 Final emissions-compliant engines from 106-523kW. The range comes in 5-, 8-, 11-, 13- and 16litre capacities and suits a host of off-road applications, including material handling, construction, quarrying and mining. Achieving Tier 4 Final emissions sees Volvo Penta opting for selective catalytic reduction (SCR) technology. The system performs without regeneration or a diesel particulate filter making it a simpler, more versatile and a less costly option for customers, said the
    Read More
  • Volvo Penta shows new Tier 4 Final engine range
    January 6, 2017
    Volvo Penta says it is ready for a follow-up of the new Tier 4 Final engine range and for displaying engine features such as the start/stop function, the latest Volvo Penta innovation that will “help operators to significantly reduce their fuel costs.” Volvo Penta introduced its range of engines compliant with Tier 4 Interim/Stage 3B, all based on the Selective Catalytic Reduction (SCR) technology in Janaury 2011, and while they were well received by the market, the off-road equipment industry was aware tha
    Read More
  • Volvo Penta shows new Tier 4 Final engine range
    February 12, 2013
    Volvo Penta says it is ready for a follow-up of the new Tier 4 Final engine range and for displaying engine features such as the start/stop function, the latest Volvo Penta innovation that will “help operators to significantly reduce their fuel costs.” Volvo Penta introduced its range of engines compliant with Tier 4 Interim/Stage 3B, all based on the Selective Catalytic Reduction (SCR) technology in Janaury 2011, and while they were well received by the market, the off-road equipment industry was aware tha
    Read More

Highlighted Content