The engine system mainly consists of fuel supply and speed control system, intake and exhaust system, lubrication system, cooling system, starting and charging system, etc.

(1) The fuel supply and speed control system is mainly composed of components such as the fuel pump, fuel filter, fuel cooler, fuel injection pump, and fuel injector. Its function is to inject diesel into the combustion chamber at a fixed time, quantity, and pressure according to the operating conditions of the diesel engine. At the same time, the diesel engine is controlled to operate stably under given operating conditions through the action of the fuel injection pump and governor. The commonly used fuel supply and speed regulation systems mainly include plunger type fuel injection pump fuel supply and speed regulation system, PT fuel supply and speed regulation system, electronic control injection (including high-pressure common rail) fuel supply and speed regulation system, etc.

(2) The intake and exhaust system of a diesel engine mainly consists of an air filter, intake and exhaust pipes, a muffler, and a turbocharging system.

(3) The function of the lubrication system is to provide sufficient oil to the friction surfaces of the diesel engine to reduce wear and ensure its normal operation. At the same time, it also has functions such as heat dissipation, cleaning, sealing, and corrosion prevention. The lubrication system mainly consists of components such as oil pump, oil filter, centrifugal filter, various regulating valves, and lubrication pipeline oil cooler.

(4) The main function of the cooling system is to carry out the heat generated by combustion and friction during engine operation through the cooling medium, ensuring that the engine operates within the most reasonable temperature range. According to the different cooling media, it can be divided into water-cooled and air-cooled. Water cooled cooling can be divided into natural circulation cooling and forced circulation cooling, while forced circulation cooling can be divided into open and closed types. In an open forced circulation cooling system, the cooling medium is directly connected to the atmosphere. In a closed forced circulation cooling system, the cooling medium is not directly connected to the external atmosphere. The cooling medium circulates in a closed system, and the pressure of the cooling system is slightly higher than the atmospheric pressure. The boiling point of the cooling medium can be above 100 degrees Celsius. Its advantages can increase the water temperature at the inlet and outlet of the diesel engine, reduce the temperature difference between the cooling water, stabilize the working temperature of the diesel engine and improve its economy. It can also increase the average temperature of the radiator, thereby reducing the heat dissipation area, reducing water consumption, and shortening the preheating time of the engine oil. The main components of the cooling system are radiators, cooling fans, cooling water pumps, cooling intensity regulators, cooling antifreeze, etc.

(5) The entire process of starting a diesel engine from a stationary state to a working state with the help of external forces is called the starting process of a diesel engine. The device required to complete the startup process is called the startup system. Its function is to provide starting energy, drive the crankshaft to rotate and reach the starting speed (usually 150-300r/min), and reliably achieve diesel engine starting.

This article is dedicated to the friendship of gas generator units. For more relevant knowledge, please click on: http://www.huannengpower.com Sincere attitude. We will provide you with comprehensive services. We will gradually contribute more relevant knowledge to everyone. Stay tuned