The lubrication system of diesel generator set diesel engine is that the main parts of the diesel engine are lubricated by the pressure oil supplied by the oil pump, the oil circuit constitutes a circulating system, and other parts are lubricated by splashing oil.
The oil in the oil pan is sucked into the oil pump through the coarse filter screen and the oil suction pipe, enters the oil cooler for cooling, and then enters the oil filter. The oil flows through the supercharger oil filter, and after filtering, it is sent to the left and right rows of supercharger bearings and high-pressure oil pump by two oil pipes, and then returned to the oil pan by the oil return pipe; the other way flows through the main oil of the body The road is divided into 3 roads, which are as follows:
a. After passing through the oil passage on the main bearing seat of the diesel engine body, it enters the inner inclined oil passage of the blue shaft, and leads to the shaft diameter of each gear connecting rod respectively;
b. Lubricate the friction surfaces of each camshaft and valve train respectively through the two camshafts and the oil passage leading to the rocker shaft;
c. It flows out through the piston cooling nozzle and enters the piston cooling chamber to cool the piston.
The oil flowing out of the connecting rod big end bearing splashes onto the cylinder wall by centrifugal force to lubricate the piston ring and cylinder liner. The oil flowing out of the inner cooling chamber of the piston splashes into the oil hole on the small end of the connecting rod to lubricate the piston pin and the small end of the connecting rod bushing, and the splashed oil in the crankcase lubricates the working surface of the cam.
The P-type high-pressure oil pump is divided into two types by the diesel engine lubrication system. One is from the top of the oil filter of the supercharger, and the oil is led by an oil hose to the oil inlet joint of the P-type pump for lubrication. The lubricated oil in the high-pressure oil pump is lubricated. The oil is then connected to the body by another oil hose and returned to the oil pan. When the diesel engine is working, the P-type high-pressure oil pump can automatically get pressure lubrication, which ensures the reliability of the high-pressure oil pump. The other is to directly add lubricating oil to the high-pressure oil pump in advance. In this way, you need to check the oil dipstick on the high-pressure oil pump before starting the machine to ensure that there is enough lubricating oil in the oil pump (splash lubrication is used for upright 6-cylinder machines).
The above is the working principle of the diesel engine lubrication system of the diesel generator set to share with you. I hope all users can help.
Post time: Aug-09-2022