Auto Air Conditioning Cycle

How does a car s air conditioning work.

Auto air conditioning cycle.

The compressor is a pump driven by a belt attached to the engine s crankshaft. The metering device component 3 on this air conditioning circuit and cycle diagram is the dividing point between the high pressure and low pressure sides of the system and is designed to maintain a specific rate of flow of refrigerant into the low side of the system. It does this by changing the pressure and state of the refrigerant to absorb or release heat. The nash kelvinator corporation used its experience in refrigeration to introduce the automobile industry s first compact and affordable single unit heating and air conditioning system optional for its nash models.

Although it may be alarming the first time it happens at a stoplight or when you are idling at the store it is very normal. The refrigerant aka coolant absorbs heat from inside of your home and then pumps it outside. The compressor of the car air conditioning system is driven by the crankshaft of the engine through the belt drive. When the refrigerant is drawn into the compressor it is in a low pressure gaseous form.

An expansion valve which is a restriction the compressor pumps against. Since the mid 1990s most cars equipped with air conditioning have also been outfitted with electronic modules that tell your car s ac compressor to cycle on and off. Got home and began to slowly put the r 134a into the car air conditioner system with the ac turned on and the temperature set fully to cold and the blower fully on. A mechanical compressor driven by the vehicle s engine.

Lowers the temperature of the high pressure and high temperature liquid refrigerant sent by compressor through forced convection provided either by. An air conditioner works using a thermodynamic cycle called the refrigeration cycle. Your vehicle s compressor powered by the serpentine belt compresses the refrigerant into a liquid putting it into a. All automotive air conditioning systems are nearly closed loops with a high pressure side and low pressure side.

Most air conditioners are air source split. Condenser it is the device looks like a small radiator and is used after the compressor as it provides condensing i e. And two heat exchangers the evaporator and the condenser. The compressor was fully on and the car just was barely cooling before i began adding the freon into the car but it certainly was not keeping up and was not cool enough.

Learn more about the repetitive cycle of the system from the list of air conditioner components and the ac parts diagrams below. Any ac system requires a refrigerant such as r 134a.