What is a car vacuum pump
Automotive vacuum pump is a kind of mechanical equipment, mainly used to provide the vacuum pressure required by the engine and other vehicle systems, including brake systems, air conditioning systems and emission systems. It draws the gas from the inlet through rotating motion, and then disjects the gas through centrifugal force. At the same time, a vacuum is formed inside the pump to achieve the required vacuum degree.
The working principle of automobile vacuum pump
Automotive vacuum pumps usually consist of an eccentric cast iron impeller driven by a shaft and its housing. When the eccentric impeller rotates, its rotating motion draws the gas from the inlet and then exhausts it by centrifugal force. Due to the eccentricity of the impeller during movement, a vacuum is formed inside the pump while the gas is discharged.
The application of automobile vacuum pump in automobile
brake system : automobile vacuum pump provides vacuum help for brake. The braking system requires a large amount of vacuum pressure to ensure that the brakes can stop the vehicle completely. When force is applied to the brake pedal, the vacuum pump draws air from the intake manifold to provide a hydraulic boost to the braking system.
Air conditioning system : The vacuum pump reduces the pressure to a negative value to draw out the air inside the air conditioning system to form a vacuum, allowing refrigerant to circulate more easily in the system.
Discharge system : Vacuum pumps help to properly remove exhaust gases and ensure pollutant discharge complies with regulations and standards.
Care and maintenance advice
Regularly check the vacuum pump pipeline and joints for loosening phenomenon.
Add bearing lubricating oil to the bearing body, and replace or supplement in time.
Control the flow and head of the vacuum pump within the range indicated on the label to ensure its maximum efficiency point operation.
Check the wear of the shaft sleeve regularly, and replace it in time after large wear.
Through the above information, you can fully understand the definition, working principle, application scenarios and maintenance methods of automotive vacuum pumps.
Automotive vacuum pumps play an important role in a number of systems, mainly including the following aspects :
Brake booster system : vacuum pump plays a key role in the brake booster system. It creates a vacuum by pumping the air inside the booster, which helps the driver press the brake pedal more easily. This design enables the braking system to provide greater power after the vehicle starts, ensuring safe driving.
Air conditioning system : In the automobile air conditioning system, the vacuum pump is used to remove the air from the refrigerant circuit to ensure that the system can effectively absorb and discharge the refrigerant, thus ensuring the cooling effect of the air conditioning system.
Fuel injection system : vacuum pump creates negative pressure in the fuel injection system to help fuel be sucked out of the tank and delivered to the engine through the fuel line to ensure the normal operation of the fuel system.
Automobile maintenance and testing : In the process of automobile diagnosis and maintenance, vacuum pumps are also used to vacuum, check the air tightness, test the emission system, etc., to ensure the normal operation and performance of the automobile.
The working principle of automotive vacuum pump is based on vacuum technology, through pumping the air in the system to form a vacuum state, so as to provide the required auxiliary force. This design not only improves the safety and performance of the vehicle, but also ensures the normal operation of various automotive systems.
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