Cummins has announced plans to produce dual-fuel engines from 800 hp to 3500 hp for high horsepower markets. The first in the product portfolio, the Tier 2 QSK50 for oil and gas well servicing applications, will begin production mid-year 2013, with other QSK engines to follow.
Cummins high horsepower dual fuel engines will operate with common integrated controls, making a seamless transition from diesel fuel to dual-fuel operation. By default, an engine will run on diesel fuel until the operator selects the option on the control panel to run the engine on a blend of diesel and natural gas fuel. The engine will switch to dual-fuel mode and automatically select the substitution rate for the operator.