The fuel supply system of diesel engine is an important part of diesel engine. The performance of this system directly affects the power, economy, noise and exhaust emission of diesel engine. The fuel supply system of diesel engine mainly includes oil, low pressure oil pipe and low pressure oil pump. Diesel hose, diesel hutch cleaner, fuel injection pump, governor, high-pressure fuel pipe and fuel injector, etc. , its main function is in accordance with the requirements of the work of the diesel engine, timing, the high-pressure atomized diesel oil is injected into the combustion air according to the certain fuel injection rule quantitatively and qualitatively, and then mixed and burned rapidly and well with the air.

 Fuel tank structure and function: the physical shape of the fuel tank, it is used to store the container of diesel fuel, is generally made of steel plate stamping welding, the internal surface is usually for rust-proof treatment. In order to prevent the internal diesel fuel tank by severe impact after the formation of foam, the internal fuel tank is generally separated by a partition into more space. The higher part of the fuel tank is the fuel port, below the fuel port is the filter screen, in order to avoid the use of the process of vacuum inside the fuel tank, the top of the fuel tank cover drilling holes. There is usually a drain at the bottom of the tank.