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What Components Make Up an Automotive Air Conditioning Refrigeration System?

1 Answers

VanReagan

07/25/25 1:25am

The automotive air conditioning refrigeration system primarily consists of a compressor, expansion throttle device, evaporator, drying device, condenser, blower, fan, and control unit. Below are the relevant introductions for each component: 1. Compressor: Installed at the front of the engine and driven by the engine's peripheral belt. Its basic functions are to alter the refrigerant pressure within the system, establishing the preconditions for refrigeration, and to assist in circulating the refrigerant throughout the system. 2. Expansion Throttle Device: Typically installed on the inlet pipeline of the evaporator. Its basic functions include throttling and pressure reduction, regulating and controlling the refrigerant flow rate, and preventing liquid refrigerant from entering the compressor. 3. Evaporator: Installation locations vary by vehicle model. Its basic functions include serving as another heat exchanger within the air conditioning refrigeration system. 4. Drying Device (1) Installed between the condenser outlet and the evaporator inlet. Its basic functions include absorbing moisture, storing refrigerant, and filtering out impurities; used in all refrigeration systems employing expansion valves. (2) Installed on the low-pressure side between the evaporator outlet and the compressor inlet. Its basic functions include preventing liquid refrigerant from entering the compressor; used in all refrigeration systems employing throttle tubes. 5. Condenser: Installed in front of the radiator (ahead of the coolant tank). Its basic function is to cool and liquefy high-temperature, high-pressure gas (operating temperature approximately 60°C). 6. Blower: Installed at the front of the evaporator. Its basic function is to blow cold air into the cabin. 7. Fan: Installed at the front of the engine. Its basic function is to assist the condenser in dissipating heat, thereby reducing refrigerant pressure. 8. Control Unit: Installation locations vary by vehicle model. Its basic functions include ensuring the air conditioning system operates safely and normally, maintaining operation according to set temperatures, and protecting the system's components.

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