FILL IN THE GAPS WITH THE FOLLOWING WORDS: compression, downwards, BDC, suction, upwards, rise, injection, compresses, combustion, TDC, exhaust, ignited, power, inlet
During the or intake or induction stroke the intake valve is open and the piston is moving . Air is drawn into the cylinder and when the piston reaches the the cylinder is full of air and the valve closes.
In the stroke the piston is moving and the air. The pressure and the temperature . All valves are closed when the piston is almost at the the fuel is sprayed into the cylinder by the fuel valve. it is self because of the high temperature of the compressed air.
Then fuel is burnt and the gases push the piston down. This is the stroke- only this stroke provides power for the propulsion of the ship.
Finally, in the stroke the piston is moving and the exhaust valve is opened, through which the exhaust gases are driven out.
