Diesel generating sets of fuel oil and engine oil has a completely different functions, they can’t be mixed, once the fuel and oil mixture, means that the unit seal out of the question, the situation in use, Jiangsu Meao Power Technology Co., Ltd. as an introduction to what happens.
1. The pump film of the oil pump is rotten or degummed, so that the diesel oil flows into the oil pan and is mixed with the oil. Remove the oil delivery pump, add the corresponding pressure to the inlet pipe and outlet pipe on the oil pump test bench, if no diesel leakage is found, it indicates that the oil delivery pump is intact.
2. injector injection open pressure is low, poor atomization, so that diesel oil along the cylinder wall into the oil sump and oil mixing. The injector is removed and tested on the high pressure oil pump test bench. If the opening pressure of the injector meets the requirements and the atomization is good, the injector is intact. Otherwise, it is necessary to repair or replace the injector.
3. the fuel pump front-end oil leakage, that is, the fuel pump front-end oil seal failure, remove the gear chamber cover inspection hole cover, if found from the fuel pump driving gear behind a large number of diesel jet, it can be concluded that the diesel oil is leaked into the oil pan by the fuel pump and mixed with oil. After removing the fuel injection pump, it was found in the test on the high pressure oil pump test bench; Many fuel injection pump front-end gear shaft at the oil seal deformation, a large number of diesel leakage, the oil seal seat has the removal of gear, the use of special tools screw over the mark (indentation) deformation of the oil seal seat and oil seal, causing diesel leakage, Z after the replacement of fuel injection pump, the fault can be dealt with.
The mixture of fuel and oil of diesel generator set is difficult to find in the early stage, so you must not be careless when observing the operation of the unit and daily maintenance, do not wait until the situation is serious to repair, it will increase the difficulty of repair.
Jiangsu Meao Power Technology Co., Ltd. focuses on the development and manufacture of diesel generator sets, and has accumulated rich experience in manufacturing and service in this field. As a professional generator manufacturer, MEAOPOWER attaches great importance to product development, innovation and service quality, and maintains close strategic cooperation with famous domestic and international enterprises such as Cummins, Perkins, Doosan, Yuchai, Weichai, Shangchai, Wuxi Wandi, Lillesomer, Stanford, Marathon and so on.
