Phase during which the exhaust valve opens and the piston moves back up to expel the burned gases.
burned gasesMixture of gases (carbon monoxide, nitrogen oxide and unburned hydrocarbons) filling the combustion chamber after the explosion.
exhaust valvePart that opens to allow the burned gases to escape.
pistonMetal moving part in the cylinder and attached to the connecting rod; it compresses the air/fuel mixture, then receives the thrust from the burned gases.
combustionPhase during which the expansion of the combustion gases pushes the piston downward, driving the rotation of the crankshaft.
explosionIgnition of the air/fuel mixture produces a major energy release that pushes the piston downward.
intakePhase during which the exhaust valve opens and the piston comes down and draws the air/fuel mixture into the combustion chamber.
cylinderChamber closed by two valves; in it, the piston moves and the air/fuel mixture is burned.
air/fuel mixtureMixture prepared in the carburetor, containing an amount of fuel proportional to the amount of air entering.
intake valvePart that opens to let the air/fuel mixture into the cylinder.
compressionPhase during which the piston goes up to compress the air/fuel mixture. At the height of the compression, the spark plug produces a spark.
sparkSpark produced when an electric current arcs between the two electrodes of a spark plug and ignites the air/fuel mixture.
crankshaftShaft consisting of a series of cranks, which convert the alternate rectilinear motion of the piston/connecting rod assembly into a continuous circular motion.
connecting rodArticulated shank powered by the gas explosion; it transmits the thrust from the piston to the crankshaft.
RBR - Radial Bi Rotary Balanced Piston Combustion Engine
LEAP engine - Combustion Chamber
Stirling Engine - Moteur Stirling - Stirlingmotor (alpha type)