Hi, Folks.
Here is a link to a couple of You Tube videos of an interesting treatment of the exhausts on a D11. Your thoughts?





Just my 0.02.

Very interesting exhaust system. Sounded and looked like it works.

thanks for posting Deas, yes that is interesting...as Dan says it seems to work...very quiet, most of the noise seems to be from steel on steel from U/C
-exhaust flow looks like two muffler inlets, but 3 outlets
-like to see a better flow/construction diagram
-maybe it could be fabricated for other applications etc...

Hi, kittyman1.
My guess is that they are using that box across the top of the ROPS as a form of muffler with an extra outlet to help get rid of the exhaust gas. Pretty much anything that evens out the flow of an exhaust will be quieter than the normal continuous series of blasts of gas coming out of the cylinders - one big plus of turbos.

Just my 0.02.

Thats an exhaust gas purification system. Looks like Germany or France maybe.

Hi, ROME K/G.
Would that be like the exhaust 'scrubbers' that they fit to diesels working underground?

I worked with a couple of D9Gs in late 1972-early 1973 in a railway tunnel in Sydney, Australia, that had what they called 'scrubbers' on them for that reason. Those 'gadgets' were filled with porcelain rods that were heated up by the exhaust and then burned off the particulates in the diesel exhaust gas.

Just my 0.02.

Yes Deas,

Deas wrote:

Hi, ROME K/G.
Would that be like the exhaust 'scrubbers' that they fit to diesels working underground?

I worked with a couple of D9Gs in late 1972-early 1973 in a railway tunnel in Sydney, Australia, that had what they called 'scrubbers' on them for that reason. Those 'gadgets' were filled with porcelain rods that were heated up by the exhaust and then burned off the particulates in the diesel exhaust gas.

Just my 0.02.

***Deas: I wondered myself if that was someones version of Tier 4 compliant motor thanks to CARB and the EPA. Same principal you mention is for a highway truck as well as certain farm tractors etc. based on their power ratings. I have a Peterbilt truck that had a "slightly" tuned engine that had to be "nuetered", so we could install a DPF aka diesel particulate filter. Back then, there were no units compact enough to handle anything over 500 horsepower. Worst thing we ever did; as fuel mileage dropped  and the add on filter did not do its job as expected. Had I managed to keep the C-15 Caterpillar as before, we would have practically had to hang an additional DPF on the roof or along the frame. ***JM
 

Hi, Juiceman.
One of those D9Gs mentioned above had the scrubber assembly in a box on the footplate to the right of the operator with a pipe leading from the exhaust to the box and two vertical pipes exiting from the box about 2 feet from the operator's right arm. Great for inducing industrial deafness.

BUTTT, that was not the whole story. Over time and with the bouncing around from the D9, the porcelain rods began to break up and then pieces of HOT porcelain rod would intermittently be shot out of one or the other or both of those vertical pipes rising out of the box - - - - and sometimes land on the operator.

That was back in 1973 - when operators didn't have quite as much say about safety.

Just my 0.02.