Auto Air Conditioning Cycle

We ll start with the high pressure side as it leads from the engine to the passenger compartment.

Auto air conditioning cycle.

Lowers the temperature of the high pressure and high temperature liquid refrigerant sent by compressor through forced convection provided either by. The compressor is a pump driven by a belt attached to the engine s crankshaft. 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.

It does this by changing the pressure and state of the refrigerant to absorb or release heat. When the refrigerant is drawn into the compressor it is in a low pressure gaseous form. Most air conditioners are air source split. 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.

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. The refrigerant aka coolant absorbs heat from inside of your home and then pumps it outside. How does a car s air conditioning work. And two heat exchangers the evaporator and the condenser.

In 1954 the nash ambassador was the first american automobile to have a front end fully integrated heating ventilating and air conditioning system. Any automotive air conditioning system employs four basic parts. Any ac system requires a refrigerant such as r 134a. 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.

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. 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. The compressor of the car air conditioning system is driven by the crankshaft of the engine through the belt drive.

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. Condenser it is the device looks like a small radiator and is used after the compressor as it provides condensing i e.