All reciprocating internal combustion engines operate on the same general process: a variable volume is defined by a cylinder, one of the bases of which is fixed, called head, and the other is a movable piston in the cylinder bore, driven by a connecting rod system.
In a four-stroke engine, the organs that control the inlet or exhaust valves are actuated by push buttons coupled to the drive shaft by a camshaft.
In various ways, depending on whether the engine is two or four stroke, fresh gas is introduced into the cylinder at atmospheric pressure during the intake phase (fuel mixture formed in advance in conventional gasoline engines, clean air in diesel engines).
This session will examine in detail the different phases of operation of a gasoline engine, first 4 and then 2 stroke.
In the summary of the last step, we will identify the main changes that occur for diesel engines.
Clips that are presented here were created by Master William SEJEAN, French Naval Training Center in . (Session realized on 06/14/21 by Renaud Gicquel and William SEJEAN)
This session enabled you to understand the details of operation of 2 and 4 stroke engines.
It was illustrated with clips for gasoline engines. The main changes that appear in the case of diesel engines are: