Exhaust and aftertreatment on the Achates ULNOx heavy-duty opposed-piston diesel
Green Car Congress
DECEMBER 28, 2020
However, during development, the project team was able to exceed the program expectation for engine-out NO x and exhaust temperature control in the catalyst warm-up mode and concluded that the tailpipe NO x targets can be met without the close coupled light-off SCR. The OP engine operates at nearly ideal temperature range.
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