Automobile knowledge engine piston

The engine is like the "heart" of the car, and the Piston can be understood as the "center" of the engine. Apart from being in a bad working environment, it is still the busiest one in the engine, constantly moving from the bottom dead center to the top. Dead end, reciprocating motion from top dead center to bottom dead center, suction, compression, workmanship, exhaust... The interior of the piston is designed as a hollow, more like a hat, the two ends of the hole connect the piston The pin, the piston pin connects the small end of the Connecting Rod, and the big end of the connecting rod is connected with the crankshaft to convert the reciprocating motion of the piston into the circular motion of the crankshaft. The engine is like the "heart" of the car, and the piston can be understood as the "center" of the engine.      Apart from being in a bad working environment, it is still the busiest one in the engine, constantly moving from the bottom dead center to the top.      Dead end, reciprocating motion from top dead center to bottom dead center, suction, compression, workmanship, exhaust...      The interior of the piston is designed as a hollow, more like a hat, the two ends of the hole connect the piston The pin, the piston pin connects the small end of the connecting rod, and the big end of the connecting rod is connected with the crankshaft to convert the reciprocating motion of the piston into the circular motion of the crankshaft.

If the piston ring is improperly installed or the seal is not good, it will cause the oil on the cylinder wall to smash up to the combustion chamber and mix with the air-fuel mixture, causing burning oil.      If the clearance between the piston ring and the cylinder wall is too small or the piston ring is stuck in the ring groove due to carbon deposition, etc., the piston may scratch the cylinder wall when it is reciprocated up and down, and it will be in the cylinder for a long time.      A deep groove is formed on the wall, which is often referred to as "pulling cylinder."      The cylinder wall has grooves and poor sealing, which will also cause burning oil.      Therefore, the working condition of the piston should be checked regularly to avoid the occurrence of the above two conditions and ensure that the engine is in good condition.