Four-Stroke Engine Cycle
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Questions and Answers

¿Cuál es el primer tiempo del funcionamiento del pistón?

  • Explosión
  • Compresión
  • Admisión (correct)
  • Expulsión
  • ¿Qué sucede con la válvula de admisión durante la compresión?

  • No cambia
  • Se cierra (correct)
  • No está involucrada
  • Se abre
  • ¿Qué es lo que provoca la combustión de la mezcla de gasolina y aire dentro del cilindro?

  • El pistón
  • La válvula de escape
  • La chispa de la bujía (correct)
  • El aire
  • ¿Cuál es el propósito del cuarto tiempo del funcionamiento del pistón?

    <p>Expulsión</p> Signup and view all the answers

    ¿Qué sucede con el pistón durante la explosión?

    <p>Empuja hacia abajo</p> Signup and view all the answers

    Study Notes

    • The engine operates in four stages or periods.
    • The first stage is called intake, where the intake valve opens and the piston descends, filling the cylinder with gasoline and air.
    • Gasoline is represented by red droplets and air by blue droplets.
    • The second stage is compression, where the intake valve closes and the piston rises, compressing the gasoline and air mixture.
    • The mixture of gasoline and air is greatly reduced in space during compression.
    • The third stage is explosion, where the intake and exhaust valves are closed, and the spark plug ignites the gasoline and air mixture, causing a small explosion.
    • The explosion of the gasoline vapor pushes the piston downwards.
    • The fourth stage is exhaust, where the exhaust valve opens and the piston expels the smoke produced by the explosion out into the air.
    • This cycle of intake, compression, explosion, and exhaust occurs repeatedly at high speed.

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    Description

    Learn about the four stages of an engine's operation: intake, compression, explosion, and exhaust. Understand how the engine operates and the roles of valves, pistons, and spark plugs.

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