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Tag: D18

Equipment
Doosan delivers DPF-free engines for Tier 4 Final
Diesel particulate filters were developed as one of several emissions reduction strategies for Tier 4 Interim and Tier 4 Final engines a few years ago. But where and when they can, manufacturers such as Doosan are designing their smaller engines so that a DPF is not needed. Why? “It requires high-cost maintenance, such as ash […]
April 1, 2013
Doosan’s new engines feature changes to piston and ring design as well as other modifications to meet Tier 4 Final emissions regulations without using a DPF.
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