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Cummins Plans High-HP, Dual-Fuel Engines

Posted on April 30, 2012

Cummins Inc. plans to produce dual fuel engines from 600 to 2600 kW for high-horsepower markets.

The first in the product portfolio, QSK50 Tier 2 for oil and gas well servicing applications, will begin production in mid-2013, with other QSK Series engines to follow, including engines capable of meeting upcoming Environmental Protection Agency Tier 4 emissions regulations.

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 until the operator switches to a blend of diesel and natural gas.

The engine automatically will select the substitution rate for the operator. Cummins said normally a maximum substitution rate of diesel fuel with natural gas of 70% can be expected and average substitution rates will be more than 50%, depending on application and duty cycle.

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