During ConExpo 2011 Tognum showcased many of its engines which are compliant with EPA tier regulations, including its Series 400 Tier 4i engine.
- Offers power range from 375 hp to 480 hp
- Dimensions and cooling requirements largely match predecessors, allowing OEMs to convert to next tier stage without major equipment modifications
- SCR exhaust aftertreatment system reduces nitrogen oxide emissions in exhaust gases
- SCR catalyzer replaces exhaust muffler so only minimal additional installation space is needed
- Reduces fuel consumption up to 5%
- High-pressure injection and optimized combustion enables emission compliance without diesel particulate filters
- Same constructional design for US Tier 4i zones as for European EU III B standard for easy exportation from one region to another
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