Why diesel engines are better than gasoline?
Diesel fuel simply packs more energy in every gallon than gas fuel, which makes it more economical overall. Diesel cars also have more torque, which results in better fuel economy along with more impressive acceleration.
What if diesel is used in petrol engine?
Starting up a petrol car with diesel in it will firstly, and obviously, suck diesel throughout the fuel lines, the injectors and cylinders. The vehicle will misfire and produce smoke. The engine will cut out after the petrol in the fuel lines has been used up, and your car might fail to start again.
Why are diesel engine used for heavy equipment?
Whereas diesel gives torque i.e. how much load it can carry. That is why it is used in heavy vehicles. Diesel engine have comparatively bigger compression ratio, as a result it has large offset in crankshaft, resulting into a high torque.
Why petrol is not used in heavy vehicle and diesel not in lighter vehicle?
Petrol is highly combustible than Diesel. Petrol gives quick energy compared to Diesel. It is not suitable for heavy vehicles because by burning of petrol it gives lot of energy in a short time. At this circumstances, the vehicles has to move quick but due to heavy load it cannot as a result the cylinder may burst.
Why don’t we use petrol in diesel engines?
Therefore petrol engines have low compression ratio and less piston rings. If we use petrol in diesel engine it will ignite before injecting into in the cylinder. Also due to volatility injectors will not be able to inject fuel vapors with that pressure at which they inject diesel in the cylinder.
Why diesel engine is not suitable for small vehicles like motorcycles?
That’s why the diesel engine is heavier than a petrol engine and not suitable for a small vehicle like a motorcycle. Due to the high compression ratio, the diesel engine produces more vibration and noise as compared to the petrol engine. It is not possible for a light vehicle to handle this high vibration and noise.
What is the difference between petrol and diesel bikes?
The diesel engine produces more torque but low rpm than petrol engine. So in bikes where we need high speed, it is not suitable. Diesel has high energy per gallon as compare with petrol. When diesel burns, it produces a large amount of heat which can destroy walls of the cylinder and other parts of the engine.
Why does a diesel engine have a high fuel pressure?
Because fuel is injected when the compression is very high, very high fuel pressure is required (it also helps atomization). A modern diesel engine like the Chevy Duramax has a fuel pressure of 23,000 PSI in the fuel rail. The closes comparison is a direct injected gasoline engine.