HEAVY DUTY IESEL SERVICE

摘要

Over the years, off-road equipment has maintained a reputation as being somewhat primitive; they were bigger, heavier and noisier, and had much dirtier emissions than the engines found in light-duty applications. While light-duty diesels have held a technological edge for many years, the gap is closing as emission regulations get tighter for the high-horsepower machines. The mining industry is case in point, where emission control regulations are a relatively recent phenomenon. Off-road machines didn't get a lot of scrutiny from environmental regulators in the past, mostly because they were few in number and represented a much smaller share of the overall emissions inventory. It was only a matter of time, however, before big diesels would have a much higher set of expectations to live up to.