CHECK OUT THE MEANING OF "TDI" WRITTEN ON BACK OF VOLKSWAGEN CARS :-
Turbocharged direct injection engine is invented by Volkswagen group. TDI identifies all advanced diesel engines using direct fuel injection and a turbocharger. TDI engines are economical and smooth with high levels of torque and good energy efficiency.
Working of TDI
Fuel needs oxygen to burn and the engine has to be supplied with huge quantities of air to get enough. You can solve this problem with a bigger engine - or you can solve it with a turbocharger - as in the TDI. Driven by the exhaust gases, it squeezes air more tightly into the cylinders.
After being drawn through the turbocharger the air is then cooled by passing it through an intercooler, before entering the combustion chamber where diesel is injected directly into the cylinders at very high pressure through a nozzle. It's this intensive mixing of highly atomized fuel with the cooled compressed air that leads to better, more efficient combustion.
Your driving experience is quiet and refined because effective sound keeps noise to a minimum, while hydraulic engine ensure smooth, low-vibration running.
Weri nice
ReplyDeleteCool I never knew that.
ReplyDeleteIt was already used in many cars, but no one got it patented. When VW noticed that got it patented...
ReplyDeleteNice...8 wasn't aware ...Thanks for the information
ReplyDeleteWhy the compressed air or turbocharged air has been cooled first then after it is allowed to be drawn inside the cylinder? I mean the concept used in heavy vechiles is that the ''high temperature & high pressure'' of compressed air is only source of ignition inside cylinders where highly pressurised diesel is injected, then why TDI concept includes intercooler to reduce the air temperature? what is the source of ignition?
ReplyDeleteIf the air is not cooled then it will lead to knocking.Talking about source of ignition,most of the heavy vehicles use diesel engine so ignition takes place by compression of charge.No external source of heat is required.
DeleteHope it helps !!