MAN Common Rail Injection:
http://youtu.be/QR8dH8cPRSE
MaK (Caterpillar) Large Engine Common Rail Injection:
http://youtu.be/PMViU_J2a6o
Scania Clean Room:
http://www.youtube.com/watch?v=j7C2OsdSH8k&list=UUr7JOoXij1Vgq-6KOeB7_bA&index=81&feature=plcp
Audi explanes it well:
http://youtu.be/K_c_iXBWYXg
More SCR:
http://youtu.be/YJwlcZnfVDM
The common rail injection system videos are excellent for giving you visual of how the system works. I think it is pretty amazing that the injectors can inject fuel five separate times in a given cycle. It would have been nice if the Caterpillar video had sound.
ReplyDeleteI think I’ve got the point that Scania is pretty serious about cleanness and major control on making their injectors. I’m sure they aren’t the only ones.
On the Scania Euro 6 Technology video it was good to have visual on how the after treatment works.
I've had the opportunity to play with the injection cycle on the Scania's when I was at the service school in Seattle. The issue of emissions has dramatically changed the systems we work on. They are far less straight forward than in the past but it's interesting to see the strides that have been made in performance as well.
ReplyDeleteToo bang the safety gong again the high pressure common rail systems have introduced another system (around 30,000PSI)that is extremely dangerous. That will not only get fluid into your blood but has the potential to sever body parts.
So this is the next level of the Scania emissions system. The Recirculation (EGR) and Reductant (SCR) combination. I've worked on the SCR system before on a Scania industrial application. At this point the Marine industry is at the High Pressure Fuel systems and Closed Crankcase Ventilation systems stage of the game. I believe that early 2014 is when marine will hit Tier 3. Can't wait to see how their going to fit this crap into an engine room!!!