Typical elements of the air conditioning system of late car models
1 - heater;
2 - capacitor;
3 - cover;
4 - evaporator.
Working cycle
The circulation of the refrigerant is carried out according to the standard scheme. The compressor pumps the refrigerant vapor into the condenser, where it condenses and releases heat to the condenser walls. From the condenser, the liquid refrigerant flows into the tank, from where it enters the evaporator under the action of the vacuum created by the compressor. Evaporating, the refrigerant lowers the temperature of the evaporator walls. The refrigerant vapor is returned to the compressor. The flow of refrigerant through the evaporator is controlled by an expansion valve located in the evaporator body.
Temperature control
The compressor operates in intermittent mode, keeping the evaporator temperature within a certain range. When the temperature drops below the set value, the thermostat stops the compressor. When the temperature rises, the thermostat switches the compressor back on.
Functional units of the air conditioning system
A - discharge line - hot, steam under high pressure;
B - refrigerant flow;
C - suction line - cold, steam under low pressure;
D - liquid pipeline - warm, liquid under high pressure;
E - working fitting of the high pressure side;
F - working fitting of the low pressure side;
1 - compressor;
2 - capacitor;
3 - evaporator;
4 - battery;
5 - expansion tube - outlet;
6 - bypass valve;
7 - low pressure switch.
Scheme of the air conditioning system
1 - compressor;
2 - capacitor;
3 - battery (receiver);
4 - expansion tube;
5 - fan unit;
6 - evaporator.