Internal Combustion Engine
An internal combustion engine (ICE) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combustion engine, the expansion of the high-temperature and high-pressure gases produced by combustion applies direct force to some component of the engine. The force is applied typically to pistons, turbine blades, a rotor, or a nozzle. This force moves the component over a distance, transforming chemical energy into useful work. This replaced the external combustion engine for applications where weight or size of the engine is important.
There are two types:
1. Diesel engines (Compression-ignition)
2. Petrol/gasoline engines (Spark-ignition)
Diesel and Gasoline engines are reciprocating engines too as 1/more pistons move laterally to generate rotational energy which in turn used as a prime mover for either generators or simply as car engines to drive the wheel.
2. Petrol/gasoline engines (Spark-ignition)
Diesel and Gasoline engines are reciprocating engines too as 1/more pistons move laterally to generate rotational energy which in turn used as a prime mover for either generators or simply as car engines to drive the wheel.
The injection of fuel (either diesel or gasoline) can be direct or indirect.
- Direct injection is done by the help of specially designed fuel injectors. This is applicable mostly to diesel engines.
- Indirect injection is where fuel is not directly INJECTED. Actually this suits to gasoline engines. A carburetor helps to DRAW the fuel rather than injecting it to the engine. This is applicable mostly to petrol engines. In modern cars, a carburetor is replaced by ELECTRONIC FUEL INJECTION (EFI), where injection is controlled by electronic means normally by a dedicated controller.