High Quality New Diesel Fuel Injection Pump Head Rotor 096400-1441 VE Head Rotor for Fuel Pump Engine Spare

During the process of matching the rotor distribution pump to the diesel engine, it was found that the diesel engine took a long time to start at room temperature. By analyzing the principles of the startup process and eliminating various possibilities that affect the startup performance, the key factor is finally locked in the insufficient diesel supply capacity of the vane diesel pump. Sufficient pump pressure cannot be quickly established at the beginning of startup, resulting in insufficient diesel filling of the diesel pump. Long startup time. By improving the position of the diesel inlet and diesel outlet tanks of the diesel transfer pump, the problem of long startup time was successfully solved. Structure and working principle of the diesel supply system: The rotor distribution pump uses a vane-type diesel transfer pump, which is installed on the inner end face of the pump cavity. It consists of an eccentric ring, blades, a rotor and a diesel pump, as shown in Figure 1. When the transmission shaft rotates, the diesel pump key drives the rotor to rotate, and the rotor drives four blades to rotate. At the same time, the blades move back and forth in the cross groove, and the blade end The head is always close to the inner wall of the eccentric ring, scraping along the surface to change the volume of the diesel inlet area and the diesel pressure area. The volume of the diesel inlet area increases from small to large, as shown in Figure 2. Diesel passes through the fuel tank, diesel-water separator, and diesel filter. The container is sucked into the diesel inlet area. The volume of the diesel pressure area increases from large to small. Diesel with a certain pressure is pressed out from the diesel pressure area into the pump chamber to form pump pressure. The excess is adjusted by the pressure regulating valve and flows back into the diesel inlet chamber to complete the pumping process. process. This pump pressure increases as the speed increases. On the one hand, it ensures that the pump cavity is filled with diesel to ensure normal diesel supply, and at the same time, the parts are lubricated and cooled. On the other hand, the pressure formed controls the action of the diesel supply advancer.