High temperature gear pump leakage caused by the pressure and flow become smaller High-temperature gear pump is through a pair of parameters and structure of the same involute gear rolling engagement, the tank of low pressure oil to work can be an important part of high pressure oil. The mechanical power of the engine into hydraulic power device. Gear pump flow, reliability is good. Its use process prone to wear failure, should pay attention to maintenance. Gear pump internal parts wear will cause internal leakage, gear pump internal leakage caused by pressure and flow become smaller. One of the floating sleeve and the gear surface between the leak area, resulting in the main part of the internal leakage. This part of leakage accounted for 50% of the total internal leakage of about 70%. The wear and tear of the internal gear pump oil displacement efficiency decreased, the pump output power is much lower than the input power. The loss of all the heat into the heat, it will cause the pump overheating. If the combination of flat compression, due to work floating sleeve will be a small amount of movement caused by wear and tear, resulting in pressure drop, such a floating sleeve must be replaced or repaired.
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