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

  • Improved ADTs from Caterpillar at Conexpo
    January 6, 2017
    New engines with more power, advanced transmission control, improved cabs and better serviceability are amongst the key features of Caterpillar’s new C-Series ADTs. These are the 725C, 730C, and 730C EJ ejector models, which are said to meet customer demand for increased productivity, lower operating costs, better availability, long-term durability and high resale values.
    Read More
  • Improved ADTs from Caterpillar at Conexpo
    January 17, 2014
    New engines with more power, advanced transmission control, improved cabs and better serviceability are amongst the key features of Caterpillar’s new C-Series ADTs. These are the 725C, 730C, and 730C EJ ejector models, which are said to meet customer demand for increased productivity, lower operating costs, better availability, long-term durability and high resale values.
    Read More
  • Cleaner engines, reduced emissions
    February 17, 2012
    The forthcoming Tier 4 emissions legislation represents a great leap forward in technology, Mike Woof reports
    Read More
  • Cleaner engines, reduced emissions
    April 11, 2012
    The forthcoming Tier 4 emissions legislation represents a great leap forward in technology, Mike Woof reports A high-profile focus on sustainability and reduced environmental impact is sweeping the construction sector in the European Union (EU) and the US. The EU and the US will implement regulations for the lowest emission off-road machines in history, with Canada and Japan expected to release similar regulatory programmes this year. The legislation being introduced will transform the construction indu
    Read More

Highlighted Content