Question

different between ci and si engine​

Answer 1

Explanation:

Si engine

• Spark Ignition engine are those types of the engine where the combustion of the fuel occurs with the help of Spark Plug.

• In this type of engine, the Air-fuel mixture comes from the carburetor and enters the engine cylinder through the valves and then fuel is compressed in the compression stroke and finally, a spark is given by the spark plug to ignite the air-fuel mixture and we get power stroke.

Ci engine

• The engine where the rise in temperature and pressure during compression is sufficient to cause spontaneous ignition of the fuel.

• In this type of engine, only air is compressed in the engine cylinder after compression the temperature and pressure of the air are rising up and sufficient enough to burn the fuel sprayed by the fuel injectors.