What is the working principle of a car engine

Release time:

2024-03-23

The working principle of a car engine is to convert chemical energy into mechanical energy. twelve million three hundred and forty-five thousand six hundred and seventy-eight

The working principle of a car engine is to convert chemical energy into mechanical energy. twelve million three hundred and forty-five thousand six hundred and seventy-eight
In a four stroke gasoline engine, this conversion process includes four basic steps: intake stroke, compression stroke, power stroke, and exhaust stroke. The following is the detailed content:
Intake stroke. The piston moves from top dead center to bottom dead center in the cylinder, the intake valve opens and the exhaust valve closes. At this time, the mixture of air and fuel in the cylinder is sucked into the cylinder. one hundred and twenty-three thousand four hundred and fifty-seven
Compression stroke. The piston continues to move upwards, the intake valve closes while the exhaust valve remains open. At this point, the mixture in the cylinder is compressed, and the pressure and temperature rise.
Work stroke. When the piston approaches the top dead center, the spark plug ignites the mixture, causing intense combustion. The high-temperature and high-pressure gas pushes the piston downward, thereby transferring the energy generated by combustion to the crankshaft, driving the machine to operate.
Exhaust stroke. The exhaust valve closes, and the piston moves upwards from the bottom dead center, expelling the exhaust gas generated by combustion from the cylinder.
In addition, the car engine also includes other systems such as cooling system, lubrication system, ignition system, and starting system, which work together to ensure the normal operation and efficiency of the engine

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