The working principle of a diesel generator is as follows:
1. Combustion process: The diesel generator injects diesel into the cylinder through the injection system. Inside the cylinder, the diesel is compressed by the hot air. Once it reaches the ignition point, the injection system sprays high-pressure oil mist into the cylinder, which ignites and burns, producing high-temperature, high-pressure gas.
2. Cylinder compression: The air inside the diesel engine's cylinder is compressed by the high-pressure piston, increasing the air temperature and enhancing combustion efficiency.
3. Gas expansion: The high-temperature, high-pressure gas generated by combustion drives the piston downward, which in turn drives the crankshaft to rotate.
4. Crankshaft transmission: The up-and-down motion of the piston is transmitted to the crankshaft through the connecting rod, converting linear motion into rotary motion.
5. Generator rotor: The rotation of the crankshaft drives the generator rotor to rotate, generating electric current through magnetic field induction, thus outputting electrical energy.