New dual fuel engine handles onshore drilling operations New Cummins Dual Fuel engines designed for land-based oil and gas drilling applications will use Cummins Dual Fuel technology. The first one in the line is the Tier 2 QSK50, rated at 1,480 hp at 1,200 rpm. Other QSK Series engines will follow, including engines capable of meeting upcoming US Environmental Protection Agency (EPA) Tier 4 Final emissions regulations. The QSK50 operates with integrated controls that optimize the substitution rate based on operating conditions, and seamlessly and automatically transitions between diesel fuel and dual fuel modes. Cummins Dual Fuel technology enables drilling equipment to operate on 100% ...

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