In diesel engines, the fuel burned by the hot air that has been compressed in the cylinder. To meet these needs the temperature to be compressed air temperature should reach 500 degrees Celsius or more.
Therefore,
the compression ratio in diesel engines made (15: 1-22: 1) higher than
gasoline engines, and diesel engines are also made with the construction
of a far more powerful than gasoline engines. Compared to gasoline engines to diesel engines have the following advantages and disadvantages:
Profit
- Diesel engines have a greater thermal efficiency. This means that the use of more fuel economical than gasoline engines.
- Diesel engines are more durable and do not require electric Igniter. This means that the possibility of less difficulty than gasoline engines.
- Moment of the diesel engine does not change at a broad level rate. This means that a diesel engine is more flexible and easier to operate than a gasoline engine.
Loss
- The maximum combustion pressure almost double petrol engines. This means that the sound and vibration of diesel engines greater.
- Higher combustion pressure of the diesel engine must be made of materials that resist high pressure and should have a very strong structure. This means that for the same horsepower, diesel engines are much heavier than the petrol engine and pembuatannyapun costs become more expensive.
- Diesel engine fuel injection system requires precision. And this means that it is more expensive and require more careful maintenance than gasoline engines.
- Diesel engines have a higher compression ratio and requires a larger force to play. Therefore, diesel engines require the player as the starter motors and a larger capacity battery.