Fuel is injected at which state diesel cycle

The Diesel cycle is a combustion process of a reciprocating internal combustion in the cylinders of the engine. In it, fuel is ignited by heat generated during the compression of air in the combustion chamber, into which fuel is then injected and the exhaust from the combustion is pushed out the exhaust pipe or brought out by a turbo 

It was necessary to redeem the world and he knew that his son was the only way