
In modern cars, internal combustion engines are mainly common. Internal combustion engines by design are
divided into piston and rotary. Reciprocating internal combustion engines are mainly used in cars.As a result of the
combustion of fuel, the pressure created due to the expansion of the gas pushes the piston in a linear direction back and
forth, thus driving the crankshaft in motion. The internal engine requires air and a combustible mixture to operate.