Automotive air conditioning diagram

A car air conditioning system diagram typically includes several major components, including the compressor, condenser, evaporator, expansion valve, and various pipes and hoses that connect them. The process starts with the compressor, automotive air conditioning diagram, which pumps automotive air conditioning diagram gas usually Ra from the low-pressure side of the system into the high-pressure side. The gas then flows through the condenser, where it releases heat and turns into a high-pressure liquid. The liquid then moves through the expansion valve, which reduces its pressure and temperature, causing it to evaporate into a low-pressure gas.

Refrigeration cycle used: Vapour compression cycle. The system used for automobile air conditioning works on the same principles that other air conditioning being used. The major problem associated with automobile air conditioning is running speed of compressor. While installing AC in the automobile, the compressor is mounted above the engine and it is driven by belt drive powered from front end of the engine. The condenser is mounted ahead of car radiator. The cooling coil and the blower are usually located under dashboard.

Automotive air conditioning diagram

We have some excellent threads on the forum about airconditioning, notably car AC systems, obviously! All detailled in my thread of fiddling with my cars. At the end of this post I will provide links to each repair job. I thought it would be interesting to open it up and get a feel for what is inside. According to my mum I started taking things apart from when I was about 3 years old. Initially, I did have problems putting stuff back together again. Apparently I took our central heating furnace apart when my parents were not looking. They only noticed when it was getting cold in the sitting room, and they had to call in a specialist to put it back together again. These days I do manage a bit better. Usually I manage to put things back together. Would look pretty cool in my garage!! So buckle up and lets rip this compressor apart!!

About Us Advertise Contact Us. The hissing is normal. If anything wears out on these compressors it tends to be the bearing and or clutch.

The cycling clutch orifice tube CCOT refrigerant system cycles a compressor 1 on and off in order to maintain the desired cooling. This cycling also prevents evaporator freeze-up. The temperature selector on the control assembly maintains comfort in the passenger compartment comfort. A switch that senses low side pressure as an indicator of the evaporator pressure controls the refrigeration cycle, or the on and off operation of the compressor. The cycling pressure switch is the freeze protection device in the system. The switch also senses refrigerant pressure on the suction side of the system. This switch is located on a standard service low-side fitting.

In the United States, the car air conditioner is a necessity for every car during the hot summer months. Many passengers do not know how their air conditioner works and take it for granted. This article will explain the basic principles of how automotive air conditioning works. By understanding how the ac works, you can appreciate the engineering that goes into making this life-saving device. Air conditioners made life easier and more comfortable for car occupants. In this powerful guide, you will learn comprehensively how car air conditioning units work, and the scientific principles which cool the refrigerant, and condensation, explained in easy words. The condensed refrigerant, when changes its state to vapor refrigerant, produce cooling by taking the heat from the surrounding. In other words, the car AC system works on the principle that liquid absorbs heat when they become vapors. When the refrigerant enters the compressor it is pressurized into a high-pressure, high-temperature refrigerant, which is passed through the condenser where it is converted to a liquid state means condensation occurs. Since the compressor cannot compress the liquid therefore it must be in gaseous form.

Automotive air conditioning diagram

The system looks complicated, but it's really quite simple. Once you know how it delivers cold air you will be better informed when problems occur and how to fix them, or understand more on what a garage is telling you when having it repaired. Your heater and air conditioner HVAC have three jobs, cool the interior of the car down, heat the interior up and defrost the windshield. All three modes work together as a climate control system. This system is controlled by a main computer which sits in the dash and also houses the controls for the mode and temperature settings. The computer gives commands to the compressor to start pressurizing the refrigerant along with the blend door actuators to direct air flow from the floor, mid and defrost vents. It also controls blower fan speed.

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Contact Us Speak Share Advertise. However, the third option tends to be the most frequent one, a front seal leak of the compressor shaft itself. Saltar el carrusel. It will cause wear and it draws a little power from the engine as well of course. When the engine is OFF while the air conditioning system is operating, the refrigerant in the system flows from the high- pressure side of the expansion tube orifice to the low pressure side until the pressure moves towards equalization. The active reference to source is obligatory if you use materials of a site Car Anatomy. Documentos de Crecimiento personal. In theory you should be able to replace all of those. A compressor will most likely leak in one of three places. The pressure has dropped significantly below atmospheric pressure and hence the name Low Pressure LP Line. You would replace the lines. The temperature selector on the control assembly maintains comfort in the passenger compartment comfort.

You probably don't think of your car's air conditioning system very often. But if it broke down, you'd definitely miss the cool air. So, how does AC work in a car?

Then, the pressure switch contacts close, telling the PCM to recognize the clutch relay. Which of the following applications apply to you? We have some excellent threads on the forum about airconditioning, notably car AC systems, obviously! Leave a Reply Cancel reply Your email address will not be published. Saltar el carrusel. There is a direct connection between the clutch and the compressor shaft. Skip to content. That is how we determined this was the problem. Expansion valve: High pressure, low temperature liquid refrigerant flows through the thermostatic expansion valve, where its pressure is decreased due to its flow through a small variable or fice providing restriction. Errors The following errors occurred with your submission. It is held in place with a circlip as well. Thinking someone put dye in? Buscar dentro del documento.