What is a car pump
Automobile water pump is an important part of the engine cooling system, the main role is to drive the impeller to rotate, so that the coolant circulates in the engine, so as to keep the engine in a suitable working temperature range. The pump is usually composed of a pump body, impeller, bearing and sealing ring and other components, its working principle is to generate centrifugal force through the rotation of the impeller, the coolant is drawn out of the water tank and sent to the engine, forming a cycle.
There are many types of automotive pumps, including mechanical pumps and electric pumps. The mechanical pump is driven by the engine crankshaft, which is simple in structure but consumes a certain amount of engine power and produces noise. The electric pump is driven by an electric motor, which can reduce the consumption of engine power and reduce noise, especially for maintaining stable water flow at low speed and idle. In addition, the material of the pump is also different, such as all aluminum alloy pumps and plastic pumps, which have the characteristics of lightweight and high corrosion resistance, respectively.
If the pump fails, it may cause problems such as overheating or water leakage of the engine, which will affect its normal operation. Therefore, regular inspection and maintenance of the pump is the key to ensure the normal operation of the engine.
The automobile water pump plays a crucial role in the cooling system, and its main function is to drive the coolant circulation to ensure that the engine maintains a suitable working temperature under various working conditions. By increasing the pressure of the coolant, the pump ensures the smooth flow of the coolant in the entire cooling network, thus promoting the continuous circulation of the coolant between the radiator and the engine block, effectively helping the engine heat dissipation.
The working mechanism of the pump is to rotate the bearing and impeller through the engine belt, and then drive the coolant in the pump to rotate together. Under the action of centrifugal effect, the coolant is thrown to the edge of the pump shell, and produces the corresponding pressure, and finally flows out through the water outlet or water pipe. There are many waterways in the cylinder of the automobile engine for the circulation of cooling water, and these waterways are connected to the radiator in the front of the car through the water pipe, forming a huge water circulation system.
In addition, there is usually a thermostat next to the pump. When the car is just started, the thermostat is turned off, and the cooling water only circulates inside the engine and does not flow through the water tank. When the engine temperature reaches a certain value (usually above 95 degrees), the thermostat opens, the hot water in the engine is imported into the water tank, and then the cold air in the car flows through the water tank to achieve effective heat dissipation.
The impact of the replacement of the water pump on the engine can not be ignored. Over time, the pump may fail due to wear, aging seals or damaged bearings, resulting in impaired coolant circulation, which may cause engine overheating and, in severe cases, engine damage. Therefore, timely replacement of the pump is an important measure of preventive maintenance, which can avoid engine damage caused by cooling system failure and extend the service life of the engine.
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