how dose the crdi engine actualy works

These links should help

The term CRDi or CRDe or DiCOR every now & then.
l thought its better to do some research on ‘CRDi/CRDe/DiCOR’ as well & now that l know what it means, l want to share it with others.

CRDi or CRDe or DiCOR is one & the same thing & stands for Common Rail Direct Injection (CRDi) engine. It is the latest state-of-the-art technology for diesel engines & suits passenger cars as well as commercial vehicles.
It has become very popular & is being widely used in all kinds of vehicles around the world.

One of the main reasons for the increasing popularity of CRDi is its performance & fuel economy. A CRDi engine is based on direct injection technology & has common rails i.e. tubes which inject pressurised fuel directly into the engine.

The common rail connects all the injectors & contains fuel at a constant high pressure. A small amount of fuel is supplied to the engine before & after the actual supply of charge. The high pressure in the common rail ensures that upon injection, the fuel atomises to a very high degree & mixes consistently with the air, thereby leaving minimal unburnt fuel.

In a CRDi engine, fuel quantity, engine pressure & timing of fuel injection r controlled electronically. The injectors have variable control heads which ensure that a highly precise amount of diesel goes into each cylinder. The onboard computer makes sure that the fuel is injected at the just the precise moment. This significantly improves engine efficiency & reduces noise & vibrations as compared to the conventional diesel engines.

This is for the CRDi. But needless to say that u will understand it better if u know the basic functioning of an internal combustion engine.