Series 900 Engines With SCR

The use of SCR technology on Series 900 engines from Tognum helps the engines meet Tier 4i standards.

June 8, 2011

Rolls-Royce Solutions America Inc. (formerly MTU America)

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Operating in a power range up to 240kW (320 hp), Tognum's Series 900 engines offer low fuel consumption as well as the ability to meet U.S. emission stage EPA Tier 4 interim (Tier 4i).

Uses Selective Catalytic Reduction (SCR) exhaust aftertreatment system reduces nitrogen oxide emissions in exhaust gases
SCR catalyzer replaces exhaust muffler so only minimal additional installation space is needed
Benefits include up to 5% reduced fuel consumption
Similar dimensions and cooling requirements as predecessors enables OEMs to convert applications without extensive modifications
Same constructional design for US Tier 4i zones as for European EU III B standard zones
High-pressure injection and optimized combustion eliminates need for diesel particulate filter

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