The basic structure of the mobile diesel generator is composed of cylinders, pistons, cylinder heads, intake valves, exhaust valves, piston pins, connecting rods, crankshafts, bearings and flywheels, including cat diesel generator. The diesel engine of the diesel generator is generally a single-cylinder or multi-cylinder four-stroke diesel engine. Below I will only talk about the basic principle of the operation of the single-cylinder four-stroke diesel engine: the diesel engine starts by turning the crankshaft of the Ing generator with human power or other power to make the piston closed at the top. Reciprocating up and down. The piston completes four strokes in motion: intake stroke, compression stroke, combustion and work (expansion) stroke, and exhaust stroke. When the piston moves from top to bottom, the intake valve opens, and the fresh air filtered by the air filter enters the cylinder to complete the intake stroke. The piston moves from bottom to top, the intake and exhaust valves are closed, the air is compressed, and the temperature and pressure increase, completing the compression process. When the marine diesel generator is about to reach the top, the fuel injector sprays the filtered fuel into the combustion chamber in a mist and mixes it with high-temperature and high-pressure air. It immediately ignites and burns on its own. The resulting high pressure pushes the piston down to work and the crankshaft to complete the work like silent generator. After the power stroke is completed, the piston moves from bottom to top, and the exhaust valve opens the exhaust to complete the exhaust stroke. The crankshaft rotates half a revolution for each stroke. After several working cycles, the diesel engine gradually accelerates to work under the inertia of the flywheel. We provide Perkins diesel generator, cat diesel generator and other generating set products.