The Functioning of Cummins QSK60 Diesel Engine

The dependability of an engine matters when it comes to demanding applications such as wheel loaders, marine, hauling, and excavations. This is where the Cummins QSK60 diesel engine can make a difference. This powerful workhorse ensures uptime to enhance your productivity, and it comes in different configurations to suit certain applications. For example, QSK60 V16 provides up to 2850 hp (2125 kW) for mining, with enhanced serviceability, minimal complexity, and better air handling. For marine applications, the Cummins diesel engine can provide 2000 to 2700 hp or 1491 to 2013 kW.

The Cummins QSK60 diesel engine platform is known for its reliability and durability. It does not lose torque or power, and heat rejection is like that of a Tier 2 engine to eliminate the need to re-engineer its cooling package. A fully integrated after-treatment has replaced the muffler to effectively minimize modifications in the design. Cummins redesigned the base engine with a power cylinder, crankcase breather system, and optimized wastegate turbocharger to keep PM (particulate matter) levels low and to enhance reliability and durability. It can achieve almost 1.1 million gallons-to-overhaul.

QSK60 diesel engine runs on the Cummins MCRS (Modular Common Rail Fuel System), which uses a larger injector accumulator volume and increased injection pressure to improve fuel economy and reduced PM. A leakless injector enhances fueling precision and control for the timing to minimize fuel heating and parasitic losses, and to improve fuel economy. Cummins improved the pilot valve to make it more resistant to wear. The fuel pump now has a better tappet design and a cooler for the pumping elements to further prolong the life span of components.

Intercoolers and wastegate turbochargers in the Cummins QSK60 diesel engine have been simplified to enable access to the unit’s top end, even without removing the air-handling system. Cummins integrated NanoNet filtration to effectively retain and capture harmful particles to extend injector and fuel pump life, and to minimize the need for fuel filter and oil changes. SCR (selective catalytic reduction) system provides a decomposition chamber and the airless DEF (diesel exhaust fluid) system to prolong the engine’s life by minimizing back pressure. DEF consumption is minimized with optimized temperature management.

This article is written by Victor Seropian, associated as President at Power Generation Enterprises. Power Generation Enterprises is the leading supplier of power generation systems worldwide.