Automobile water pump flanges generally have the function of self-priming. Self-priming means that when the water pump of the water pump is filled with air, the negative pressure (vacuum) formed when the water pump is working will be lower than the water pressure of other water outlets under the action of atmospheric pressure. up, and out the drain end of the pump. Before this process, there is no need to add "water diversion (water guide)". A micropump with this self-priming ability is called a "miniature self-priming pump", and its principle is similar to that of a microair pump.

The automotive electronic water pump combines the advantages of self-priming pumps and chemical pumps. It can be made of a variety of corrosion-resistant imported materials. It has properties such as acid resistance, alkali resistance, and corrosion resistance. The suction range is as high as 5 meters and there is basically no noise. Exquisite workmanship, not only has the function of self-priming, but also has a large flow rate (up to 25 liters per minute), high pressure (up to 2.7 kg), stable performance, and easy installation. Therefore, this kind of large flow control water pump is often used in the development of new energy vehicles.

The engine can drive the domestic automobile electronic water pump, bearing and impeller to rotate through the pulley. The coolant in the automobile control water pump rotates together under the drive of the impeller, and is thrown to the edge of the automobile water pump casing under the action of centrifugal force. At the same time, it can generate a certain pressure, and then flow out from the water outlet or water pipe. outflow. At the center of the impeller, the coolant is thrown and the pressure drops. The coolant in the water tank is sucked into the impeller through the water pipe under the action of the pressure difference between the inlet of the automotive electronic water pump and the center of the impeller to realize the reciprocating circulation of the system coolant.

The bearing supporting the flange shaft of the automobile water pump is lubricated with grease, so it is necessary to prevent the lubricant from penetrating into the grease to cause grease emulsification, and to prevent the grease from leaking out. The sealing technical measures for the flange of the automobile water pump to prevent information leakage mainly include water seals and gaskets. The water seal dynamic seal ring and the shaft are installed between the impeller and the bearing through interference fit, and the water seal static seal seat is pressed on the flange shell of the automobile water pump to realize sealing and cooling.

The flange housing of the automotive water pump can be connected to the engine through gaskets and support moving functional parts such as bearings. There is also a drainage hole on the flange housing of the automobile water pump, which is located between the water seal and the bearing. Once it is found that the coolant can leak through the water seal, it can leak from the drain hole to prevent the coolant from entering the Chinese bearing cavity and destroying the bearing lubrication and causing a part to rust. If the engine is stopped and the coolant is still leaking, the water seal will be damaged.

The operation process of the automobile water pump flange:

1. Centrifugal water pumps are widely used in automobile engines. Its basic economic structure is composed of the water pump passing through the casing, the connecting disc or pulley, the water pump shaft and bearings or connecting shaft bearings, the water pump impeller and the water sealing technology device, etc. It is the main working part of the car. 

2. The bearing of the water pump shaft of the support system is lubricated with grease, so it is necessary to prevent the oil from being affected by the coolant leakage into the grease and emulsification, and to prevent the grease from leaking out. The sealing technical measures for the flange of the automobile water pump to prevent information leakage mainly include water seals and gaskets. The dynamic sealing ring and shaft of the water seal are arranged between the impeller and the bearing through interference fit, and the static sealing seat of the water seal is pressed on the pump casing to achieve the purpose of sealing the pump casing. coolant. 

3. The automotive electronic water pump casing is connected to the engine through a gasket to support moving functional parts such as bearings. There is also a drain hole on the water pump housing between the water seal and the bearing. Once it is found that the coolant can leak through the water seal, it can leak from the drain hole to prevent the coolant from entering the Chinese bearing cavity and destroying the bearing lubrication and causing a part to rust. If the engine is stopped and the coolant is still leaking, the water seal will be damaged.