They kinda did that with 2008 era diesel engines. They were fitted with extra large EGR feed tubes and coolers, a large catalytic converter, a DPF, and an air intake heater with a variable vane turbocharger and variable intake.
Together it all catches 99% of the soot, produces 50% less nOX than traditional diesels, no carbon monoxide with the palladium catalytic converter, and has soot filter pressure differential sensors to sense when it needs to be cleaned, then puts the engine in "regen mode" where it injects diesel fuel between the engine cycles to dose fuel downstream to the catalytic converter that ignites it and heats up the soot filter so hot it burns the captured soot off as ash at 40+ MPH for about 35mins given or take
Yup, and engines from that era and on are nowhere near as reliable as the earlier engines, nor do they have the fuel economy. A 12v Cummins powered Ram 2500 can get 20 mpg and the engine will literally last a million miles. The regen cycle on the engines unfortunately equipped with them kills the turbo. You have to rip all of that junk off of them to make them reliable again.
They kinda did that with 2008 era diesel engines. They were fitted with extra large EGR feed tubes and coolers, a large catalytic converter, a DPF, and an air intake heater with a variable vane turbocharger and variable intake.
Together it all catches 99% of the soot, produces 50% less nOX than traditional diesels, no carbon monoxide with the palladium catalytic converter, and has soot filter pressure differential sensors to sense when it needs to be cleaned, then puts the engine in "regen mode" where it injects diesel fuel between the engine cycles to dose fuel downstream to the catalytic converter that ignites it and heats up the soot filter so hot it burns the captured soot off as ash at 40+ MPH for about 35mins given or take
Yup, and engines from that era and on are nowhere near as reliable as the earlier engines, nor do they have the fuel economy. A 12v Cummins powered Ram 2500 can get 20 mpg and the engine will literally last a million miles. The regen cycle on the engines unfortunately equipped with them kills the turbo. You have to rip all of that junk off of them to make them reliable again.