Is the air outlet pipe directly connected to the filter element?
The intake pipe is not directly connected, but starts from the air filter, after the air conditioning filter, it is connected to the blower inside the instrument panel, and then connected to the outlet. The air outlet is located on the instrument panel, while there is also an air outlet under the seat for air supply to the rear.
For most automotive air conditioning systems, air flows through the air conditioning filter in either internal or external circulation mode. Of course, there are also a few models in the specific cycle mode without the filter element.
Next, let's explore the air flow path in the car air conditioning system. Let's start with the external circulation mode, where the valve flips upward to close the air inlet inside the car and allow outside air to flow in. These outside air will first be filtered through the air conditioning filter, then through the air conditioning evaporator or warm air tank, and finally sent out by the outlet of the center console, so as to achieve the effect of adjusting the temperature inside the car.
When switched to internal circulation mode, valve 1 will flip down to close the outside air inlet and prevent the outside air from entering, at this time the system only draws air from the car. It can be seen that even the air in the car needs to be filtered through the air conditioning filter, then flows through the evaporator or warm air tank, and finally is sent out by the outlet to adjust the temperature in the car.
In summary, whether the air conditioner is in internal circulation or external circulation mode, the air will flow through the air conditioner filter element. It is worth noting that the modern car air conditioning is set to the external cycle by default when it is turned on, and manual operation is required if the internal cycle is required. Some automatic air conditioning systems in certain circumstances, such as rapid cooling or reversing, will automatically switch to the internal cycle, when the temperature in the car reaches the set value, and will automatically switch back to the external cycle to keep the air in the car fresh.
Of course, there are some special models, their air conditioning filter is installed in the front windshield on the lower right, the outside air into the car; When switching to internal circulation, the internal air duct baffle closes this inlet so that air circulates only inside the car and no longer passes through the filter element. A similar design appears in the truck's air conditioning system.
When the outlet pipe of the automobile air filter is blocked, the following measures are recommended :
Preheat the engine : The role of the air filter is to filter dust, pollen and other impurities in the air to ensure that clean air enters the engine to participate in combustion. If the air filter is in poor condition or the quality is not up to standard, impurities in the air may enter the combustion chamber, resulting in increased engine wear, decreased fuel efficiency, and even stalling during driving. Therefore, when the air filter is clogged, it is recommended to preheat the engine to ensure the normal operation of the engine 1.
Deal with it : Clogged air filters can have a range of consequences, including accelerated engine wear, reduced fuel efficiency and the potential for a vehicle to stall while in motion. Therefore, once the air filter is found to be blocked, timely measures should be taken, such as cleaning or replacing the filter, to ensure the normal operation of the engine .
professional treatment : For the problem of car air conditioning pipeline blockage, it is recommended to deal with in a professional 4S shop. The reasons for the clogging of automobile air conditioning pipes are various, including the wear of metal chips in the compressor, the moisture and deterioration of the refrigerant oil, and the impurity of the refrigerant. The treatment method is to clean the evaporator pipe and radiator plate, clean or replace the filter in the liquid reservoir, clean or replace the air filter, remove the obstruction in the channel, discharge the air pipe, etc. .
In short, the air filter outlet pipe blockage is a problem that needs to be dealt with in time, by taking appropriate measures, you can ensure the normal operation of the car and driving safety.
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