The Oil Circuit System Of Diesel Generator Set

3. The fuel injection pump

 Injection pump is also called high pressure pump, its structure and principle is more complex, will be carefully studied in the future article.

4. The fuel injector

 The injector is an assembly that radiates low-pressure fuel to the combustion chamber of a diesel generator. According to the request of different diesel generators, atomized diesel oil from low pressure oil pump is sprayed into a specific position of combustion chamber with certain injection pressure, spray fineness, spray discipline, range and spray cone Angle, and mixed combustion with air. The nozzle is mounted on the cylinder head injector nozzle and the nozzle consists of a fixed, embedded injector nozzle retainer. The structural design of the injector can be divided into two types: open and closed. The high pressure cavity of the open injector can be directly connected with the combustion chamber through the injection hole, and the closed injector can be added in the analysis of the needle valve to give some partition. Contemporary diesel turbine diesel generator base to accept closed fuel injector, closed fuel injector is divided into hole injector and needle injector, etc., separated for different combustion chambers.

5. Oil-water separator

 The function of the oil-water separator is to separate the water mixed in the oil, which is made by using the principle of light water weight of oil. When the buoy reaches or exceeds the red line, the drain plug shall be released and the water discharged. After the drain, the air in the fuel system shall be discharged through the hand pump.

6. The oil transfer pump

 Oil transfer pump is a key component in diesel generator. Its role is in the fuel tank delivery to the injection pump. In order to ensure that China's diesel oil in the low-pressure oil circulation, and to fuel injection pump supply capacity is enough to the number of enterprises and a certain amount of social pressure of the fuel, the amount of oil should be 3 to 4 times the maximum impact of the load of fuel injection, in order to ensure the normal operation of the state machine. Can be divided into linear and distributed two kinds.. Straight line oil pump is composed of import check valve, piston, piston spring, plunger tout column, push rod, export check valve, hand oil pump and pump body. Mounted on the side fuel pump of the fuel pump, the eccentric CAM of the camshaft reciprocates the piston in the injection pump by a plunger and a tappet push rod, pressurizing the fuel to the fuel injection pump is driven. These pumps sometimes require the conventional fuel management system to run on the low pressure side (from the pump to the injection pump). The air in the fuel can be expelled, so we have a manual pump to transfer the fuel pressure to the injection pump. Oil pump can be divided into two types: horizontal and up and down according to the fuel path.

Guangxi Dingbo Power Equipment Manufacturing Co., Ltd. established in 2006, is an manufacturer of diesel generator in China, which integrates design, supply, commissioning and maintenance of diesel generator set. Product covers Cummins, Perkins, Volvo, Yuchai, Shangchai, Deutz, Ricardo, MTU, Weichai etc. with power range 20kw-3000kw, and become their OEM factory and technology center.