tecnología

FOUR-STROKE RECIPROCATING INTERNAL COMBUSTION ENGINE
strokeintake valve
(inlet valve)
exhaust valve
(outlet valve)
the piston goes from... (motion)CARBURETTOR ENGINE
1st: INTAKEOPENCLOSEDTOP to BOTTOM (down)a fuel-air mixture is sucked (drawn) into the cylinder
2nd: COMPRESSIONCLOSEDCLOSEDBOTTOM to TOP (up)compresses the mixture
3rd: COMBUSTIONCLOSEDCLOSEDTOP to BOTTOM (down)explosion and power stroke
the spark ignites the mixture
4th: EXHAUSTCLOSEDOPENBOTTOM to TOP (up)exhaust gases scapes