Taking this simpler approach to meet Tier 4 Final emissions standards means that the QSK
50 and other engines in the QSK
Tier 4 Final range avoid the need for any additional on-engine systems, any extra cooling or turbocharging complexity.
The new SCR clean exhaust system will be utilized on the next generation of 19-liter to 60-liter QSK engines across a broad 800 hp to 3000 hp (597-2237 kW) power range.
Our next-generation QSK engines, integrated with the new SCR clean exhaust system, represent a game-changing technology that leaps ahead to achieve Tier 4 Final with the benefit of installation simplicity and improved fuel efficiency," said Mark Levett, Cummins Vice-President and General Manager - High-Horsepower Business.
Using SCR aftertreatment for high-horsepower applications means we are able to avoid any major change to the engine platform and retain the dependability and power performance of our current QSK engines - and this continuity is of key importance to our customers.
The Tier 4 Final clean technology builds on the proven success of the current QSK engine range.
For most oil and gas applications, the Tier 4 Final QSK engine and integrated SCR aftertreatment system offer the installation simplicity of a drop-in replacement for the current QSK engine and exhaust muffler, with a similar size and equivalent noise reduction.
Cummins QSK engines are used in the most demanding oil and gas applications, so it is important that we have achieved Tier 4 Final emissions with no compromise to performance or reliability," said Erik Drewry, Director - Cummins High-Horsepower Oil and Gas Business.
Our next-generation QSK engines with integrated SCR aftertreatment are designed as a drop-in replacement for simpler machine installation and assembly.
Power output, durability and ease of service will remain the same at Tier 4 Final as those of our current industry-leading QSK engines.
will investigate the development of an LNG fuel system for a demonstration mine truck, with engine components based on designs now being tested by the company in QSK
power generator engines, and with LNG components similar to those being tested by the company on highway trucks.
In power generation, Cummins Westport is testing the 2,500 horsepower Cummins QSK
engine with a Westport natural gas fuel system using diesel pilot ignition.
The power generator is scheduled to be installed at the Anaheim Convention Center and will include a Cummins QSK
60-litre engine equipped with a Westport(TM) patented natural gas fuel system.