Cummins uses SCR in oil & gas applications

Christopher Goodfellow - 10 May 2011

Engine manufacturer Cummins has announced that its QSK Series of 19 to 60 liter engines for oil and gas applications will meet the Tier 4 Final off-road emissions standards with a combination of clean in-cylinder combustion and Selective Catalytic Reduction (SCR) aftertreatment.

Erik Drewry, Director - Cummins High-Horsepower Oil and Gas Business, said: "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."

Drewry added the new Tier 4 Final solution realizes significantly lower overall cost of operation, with fuel efficiency improved by 5 to 10%, depending on the equipment duty cycle.

The Environmental Protection Agency's (EPA) Tier 4 Final emissions standards will apply to off-road vehicles from 2014, reducing particulate matter emissions to 0.02 g/kW-hr and oxides of nitrogen (NOx) to 0.40 g/kW-hr.

Emissions analyst Integer Research has released a Focus Report: SCR and the Non-Road Mobile Machinery (NRMM) Market, which gives further details on the off-highway sector and the impact of new emissions regulations.

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