How To Improve The Starting Performance Of Diesel Generator Sets?

When a diesel generator set is cold-started, the inability to reach the compression ignition temperature of diesel is an important reason that affects the starting performance. In this regard, hot water can be added to the engine cooling system to preheat, which is an effective way to improve the starting performance.

The specific approach is:

        Continuously heat the water (let the water flow out of the cylinder), and gradually increase the water temperature to enter the small diesel generator set for preheating. When the temperature of the outflowing water is high, turn off the water drain switch. In addition, the oil pan can be heated by an open flame such as a blowtorch to improve the oil flow performance and reduce the movement resistance of the mechanical parts. It should also ensure that the battery has sufficient capacity and good condition. The performance, which also helps to improve the starting performance of the diesel engine.

Improve the sealing performance of the cylinder

        One of the differences between diesel engines and gasoline engines is the compression ignition type, so the cylinders are required to have higher sealing performance. When the engine is cold-started in winter, there is little oil on the piston ring and cylinder wall, and the sealing effect is not good, and the phenomenon of repeated starting and failure to run on fire will occur. Sometimes due to heavy cylinder wear, the sealing performance of the cylinder is seriously affected, making it more difficult to start. In this regard, the fuel injector can be removed, and 30-40ml of oil can be added to each cylinder to enhance the sealing performance of the cylinder and increase the pressure during compression.

Eliminate the air in the oil circuit

        Loosen the bleed screw on the high-pressure oil pump, pump oil by hand to drain the air from the low-pressure oil circuit; then, drain the air from the high-pressure oil circuit. The specific method is: unscrew the oil pipe joints on the injectors, make the throttle at the maximum fuel supply position, and rotate the crankshaft until the oil pipe joints of the injectors of each cylinder discharge rapidly.