The term diesel engines applicable to any internal combustion engine, which uses the heat of compression to start the ignition cylinder burn fuel that is injected into the combustion chamber. This differs from spark ignition engines, such as gasoline engines that rely on a spark ignition fuel-air mixture. motors have the highest thermal efficiency of any external or internal combustion engines with regard to the very high compression ratios needed to ignite the fuel. All diesel engines are modeled on the thermodynamic cycle diesel that was developed by Rudolf Diesel in 1897.
As the motor is a complex process to describe. Initially, air is allowed only in the combustion chamber, this air is then compressed by the ratio of approximately 15:01 to 22:01 resulted in temperatures in the cylinder, increasing to about 550C, and 1022f. At the top of the compression stroke, fuel is injected into the compressed air into the chamber from the compression izgaranje.Topline fuel evaporates causing izgaranja.Brzo expanding combustion gases drives the piston down electrical power to the crankshaft, which then drives the different cylinder piston upward to complete the process over and repeatedly and continuously run the engine.
BMW first started using the engine in its vehicles in 1983 with the introduction of the 2.4 liter straight six-cylinder M21. This first version was never available in the UK and was mainly sold in North America in the Lincoln Continental.
1994 saw the introduction of a new engine that offers BMW, this engine is an M41 1.7 liter straight fourth This engine is available in the 1994-2000 318tds E36 BMW.
1998 saw the addition of three different engines from BMW, the 2.0 liter M47, which is a straight 4, then the M57, which ranged from 2.5 liters to 3.0 liters and was a straight six, and finally there was that M67 was a 3.9-liter V8 konfiguracije.M67 won two international engine of the Year award.
2006 saw the introduction of the N47 which was the 2.0-liter straight fourth This latest version is known as the common rail engine and had a big improvement in emissions and fuel consumption.
In 2008, BMW introduced the N57 engine, the 2.5-liter to 3.0 liter straight-six engine. These engines are the common-rail turbo engine.
of these engines are still some in production today, such as the N57, M57 and N47. BMW have adapted their line of diesel engines to be as environmentally friendly, or even more than some other manufacturers offer diesel.
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