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

  • Deutz unveils medium size, Tier 4 engine in China
    November 28, 2012
    Engine manufacturer Deutz showed its Tier 4 exhaust emissions standard TCD 3.6 L4 engine to the Chinese market for the first time. Described by Deutz as ultra-compact, this water-cooled four-cylinder engine covers the 55.4-97kW power output range and is claimed to generate a power output comparable with that of a 4.5litre, turbocharged Tier 3 engine. Deutz went on to say that rigorous engine downsizing now provides its customers with additional installation space for exhaust after treatment components. The
    Read More
  • Volvo CE president unveils emissions technology and product development programme
    January 6, 2017
    Volvo Construction Equipment president Pat Olney has unveiled the low-emissions technology used in the company’s forthcoming Stage IV/Tier 4 Final-compliant machines. He also detailed the progress of investments in Europe and other international markets and announced the extensive development pipeline that will see a radically updated product range launched over the next two years.
    Read More
  • Volvo CE president unveils emissions technology and product development programme
    April 17, 2013
    Volvo Construction Equipment president Pat Olney has unveiled the low-emissions technology used in the company’s forthcoming Stage IV/Tier 4 Final-compliant machines. He also detailed the progress of investments in Europe and other international markets and announced the extensive development pipeline that will see a radically updated product range launched over the next two years.
    Read More
  • Beumer’s Fillpack R offers fast, accurate bag filling
    January 6, 2017
    Beumer has expanded its product portfolio with the Fillpac R rotating filling machine, which has the capacity to fill up to 6,000 bags per hour using the latest technology to cater for all common bag types. The Fillpac R can fill woven polypropylene bags and is fitted with an automatic bag weight-correcting device to automatically adjust the weight of subsequent bags.
    Read More

Highlighted Content