What is the firing order of a four-cylinder engine?

[LaCorey]

The movement sequence of the four pistons is identical for cylinders one and four, and for cylinders two and three. That is, when piston one moves downward for intake, cylinder four is definitely in the power stroke. Simultaneously, pistons in cylinders two and three move upward, with one compressing and the other exhausting. This pattern continues cyclically. Concept of a four-cylinder engine: A four-cylinder engine, also known as a four-cylinder motor, is a machine capable of converting one form of energy into another more useful form. Typically, it transforms chemical energy into mechanical energy. Sometimes, the term 'engine' refers both to the power generation device and the entire machine including the power unit, such as gasoline engines or aircraft engines. The main component of the engine is the cylinder, which serves as the power source of the entire vehicle. Principle of a four-cylinder engine: The fundamental principle of a four-cylinder engine involves converting the thermal energy of gasoline (or diesel) into mechanical energy by pushing the pistons to perform work through the combustion and expansion of gases within sealed cylinders.