air flow

[CDyksman]

Hey Folks,

Could someone please give me a step by step explanation on what course a little molecule of air coming into a CTD engine would take, from air intake through exhaust pipe? Thanks a bunch!

 

[nickleinonen]

dirty side air box>

filter element>

clean side air box>

intake piping to turbocharger compressor inlet>

turbocharger compressor outlet>

charge air cooler inlet [intercooler, aftercooler, CAC: all do the same thing, just different name]>

CAC outlet>

intake plenum/manifold>

combustion process in cylinder>

exhaust manifold>

turbocharger turbine inlet>

turbocharger turbine outlet>

exhaust system>



not sure if that was what you were looking for... ???

 

[CDyksman]

Nick, thanks for the reply, that is just what i am looking for. Couple more ??'s.



When the exhaust hits the tubine inlet, does that run the compressor?

What does the CAC do?

What does the air do when it hits the turbo turbine inlet?

What affect does this have on the turbo?

What affect does the turbo then have on the rest of the process?

Have you heard of Squires Turbo Systems, if so then,

what do you know about them? Thanks man, Colby.

 

[nickleinonen]

When the exhaust hits the tubine inlet, does that run the compressor?

yes. the compressor wheel and the turbine wheel are on a common shaft. exhaust temp/pressure drive the turbine, which drives the compressor through the common shaft.

link to how a turbo works.

What does the CAC do?

the Charge Air Cooler/intercooler/aftercooler drops the temprature of the charge air from say ±400*f to say ±200*f. the compressing of the air increases the temprature. the CAC brings the temp down closer to ambiant air temp. in our trucks and almost all otr trucks, the CAC is an air to air cooler. in marine and some industrial applications, the CAC can be sea water or jacket water [coolant]

What does the air do when it hits the turbo turbine inlet?

do you mean compressor inlet?. . air gets drawn into a low pressure area in the compressor inlet, from there gets squeezed [pressurized] inside the piping between the compressor wheel and the intake valves. pressure is resistance to flow. if there is no restriction, there will be no pressure [just flow] if you loose restriction [like loosing a cac connect tube rubber shunt] you can overspeed the turbocharger. overspeed of the turbochargers is bad

What affect does this have on the turbo?

... ?

What affect does the turbo then have on the rest of the process?

... ?

Have you heard of Squires Turbo Systems, if so then,

what do you know about them?

i have heard of them, but i have never seen one of their systems in person. i think the idea is neat, but having the chargers under the car/truck leaves them very exposed to damage. the system needs a scavanging pump to return the drain oil to sump. if that pump fails, you will cook the chargers [overheating the oil]

 

[CDyksman]

Nick,

Thanks for all the info!! You have answered my questions.

Thanks again Colby