The diesel engine you know runs your car is named after Rudolf Diesel. He designed the first engine that was created to run on peanut oil. In this internal combustion engine, the fuel ignition causes the temperature in the cylinder to rise because of mechanical compression. Thus, this engine is also called the Compression-Ignition engine.
The engine is in stark contrast with the engines that use the spark-plug ignition of the air and fuel mixture. A good expel of this is the engines that run on petroleum or gasoline and a gas-run engine.
What Is a Diesel Engine?
Any internal combustion engine is called a diesel engine. It uses compression ignition to convert the energy of the fuel diesel into rotary mechanical energy. The fuel was named because it was primarily invented to run diesel engines.
The Working Principle of a Diesel Engine
The pistons in the diesel engine work to compress a mixture of air with diesel fuel. The air mixture is oxygen. The air is compressed at a ratio of approximately 15:1, and this mixture bursts to compel the piston to move back upwards, thereby creating a reciprocating motion. This motion then converts to rotary motion with the help of the engine’s crankshaft.
The Various Components in a Diesel Engine
There are many components in a diesel engine that make it work efficiently. These components are enlisted below:
- Battery: The battery helps to supply the electricity required to start the diesel engine and operate the other electronics parts and accessories in the car.
- Diesel Exhaust Filler: This is the pot that fills up the diesel exhaust fluid tank.
- Diesel Exhaust Fluid: This tank holds the actual diesel exhaust fluid, which is an aqueous solution. It gets injected into the stream during catalytic reduction.
- Electronic Control Module: It controls the fuel mixture, the timing of the ignition and the emission system. On the whole, it monitors the entire operation of the vehicle. It also protects the engine from the tensions that might cause harm.
- Fuel Filler: This is the place from where the fuel tank is refilled with fuel.
- Fuel Line: It is a metal tube or a flexible hose that helps to transfer the fuel from the tank to the system’s injection.
- Fuel Pump: This pump is responsible for transferring the fuel from the tank to the injection system using the fuel line.
- Fuel Tank: It is the fuel storage area when the vehicle is at rest.
Types of Diesel Engines
There are two types of diesel engines today. They are:
#1. Two Stroke: A two-stroke engine uses two strokes in two directions to make one complete cycle. In the first stroke, the compression happens when the piston moves up. This results in the compression of the fuel which is compressed. The second stroke happens when the piston moves down. This brings new fuel into the cylinder.
#2. Four Strokes: This engine is found in diesel engines and petrol or gasoline engines. One stroke is compression, and the other is an exhaust stroke. The other two are return strokes, making them four strokes.
Diesel engines are used apart from cars in many industrial sectors. It is very useful as a power source, and since it is low in volatility, it is also safe to handle. And where petroleum is becoming very expensive and scarce, diesel engines are the future of the automotive industry. Even if you push other forms of fuel in a diesel engine, it will work with the same amount of efficiency, which is not at all possible in petroleum engines. Thus, they are the best types of engines proven to date.