ZYB high-pressure fuel gear pump will cause internal leakage after long-term operation of internal parts. It will generally leak between the gear end face and the thrust plate. As the internal wear gap increases, the self-priming capacity of the gear pump will be worse and the pressure will be worse. It will also become lower and lower, causing the flow of the gear pump to decrease. The cause of the internal leakage of the ZYB high-pressure fuel gear pump and the product structure. The long-term operation of the ZYB high-pressure fuel gear pump will cause internal leakage after the internal parts are worn, generally on the gear end face and thrust. The inner leakage between the plates, as the internal wear gap increases, the self-priming ability of the gear pump will be worse and the pressure will be lower and lower, resulting in a decrease in the flow rate of the gear pump. The internal leakage of the ZYB high-pressure fuel gear pump causes the pressure and flow to become smaller. The leakage area between the floating bushing and the gear end face is large, causing the main part of the internal leakage. This part of the leakage accounted for about 50% to 70% of the total internal leakage. The volumetric efficiency of the worn inner leakage of Botaibang is reduced, and the output power of the oil pump is much lower than the input power. All of its losses are converted into heat, which can cause the gear pump to overheat. If the joint plane is pressed, the floating sleeve will wear due to a small amount of movement during operation, and as a result, the pressure flow will decrease, and such a floating sleeve must be replaced or repaired.
1. The four bearing sleeves of ZYB high-pressure fuel gear pump are floatingly installed in the pump body, and the end face interval is automatically adjusted according to the working pressure. Therefore, the pressure of the pump is stable, the output flow pulsation is small, and the volumetric efficiency is high.
2. ZYB high-pressure fuel gear pump is mainly composed of gears, shafts, pump bodies, pump covers, bearing sleeves, shaft end seals and other components. The gears and shafts are subjected to strict heat treatment, have high hardness and wear resistance, and are installed in the bushing together with the shaft. All moving parts in the pump are lubricated with the medium they transport.
3. Regularly check the wear of gears and thrust plates.
4. In particular, when conveying media with poor lubricity, please specify when ordering. In order to select the special wear-resistant material for the medium flow parts that the ZYB high-pressure fuel gear pump is exposed to during the production process.
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