In the countless innovative technologies and developments that exist today, it is not easy for an ordinary car enthusiast to make the right choice, however, having studied all the exciting moments, you can always find exactly what you need. This also applies to diesel engines.
Diesel engine development
For the first time, the design of an engine operating on the principle of self-ignition of fuel under the action of heated air during compression was patented by Rudolf Diesel in 1892. The debut engines were adapted to run on vegetable oils and light petroleum products, and in 1898 they were already able to run on crude oil. Passenger car manufacturers only turned their attention to diesel engines in the 70s of the 20th century, when fuel prices rose significantly.
Diesel engine advantages
Since then, diesel engines have improved significantly and are successfully used in various vehicle trim levels. Many car enthusiasts prefer "diesels" to conventional gasoline engines, since the former are more economical (they consume up to 30% less fuel, which is several times cheaper than various types of gasoline) and have a higher torque. And this is even despite the fact that cars equipped with "diesels" are much more expensive. And the engines themselves have increased weight and size due to the fact that they are designed to withstand colossal loads.
Characteristics of the TDI and CDI diesel engines
At the moment, a lot of types of diesel engines are known. However, if you intend to make a choice between units such as TDI and CDI, you should compare their characteristics in advance in order to make the right decision and get exactly what you need in the end.
The TDI (Turbocharged Direct Injection) engine was developed by the German company Volkswagen. Its main distinguishing feature, in addition to direct injection, is the presence of a turbocharger with variable turbine geometry. The overall system guarantees optimized cylinder filling, highly efficient fuel combustion, economy and environmental friendliness. The turbocharging of the TDI engine coordinates the energy flow of the exhaust gases and thus provides the required air pressure over a wide engine speed range.
Such motors are considered sufficiently reliable and unassuming to use. However, they have one unpleasant feature. The fact is that the TDI turbine at a high operating temperature (and it has an exhaust gas flow of up to 1000 ° C) and an impressive rotational speed (about 200 thousand rpm) has a short resource, only about 150 thousand km of vehicle mileage. But the engine itself can withstand up to 1 million km.
"Diesel" CDI (Common Rail Diesel Injection) is the result of the work of the Mercedes-Benz concern. It was the first to use the innovative Common Rail injection system. It allowed to significantly reduce fuel consumption, and power was increased by almost 40%. It is worth noting that CDI motors require significant maintenance costs, however, with a low level of wear of parts achieved, repairs are required much less often. It would seem that the system is perfect, but this engine can be sensitive to low-quality fuel.
However, modern diesel engines are really not much different, with the exception of some minor points. So it is impossible to unequivocally answer the question of which engine is actually better. You must be guided by your own needs, tastes and preferences. But the choice of a diesel engine itself is definitely the right decision.
