how does a car ac compressor work

    how does a car ac compressor work

    The ac system has many tubes in it. An air-conditioning compressor is a key component in a car’s air-con system. Car shop vs DIY: how much can Haynes save you? Then the compressor moves the refrigerant into a pipe. There are a lot of things to know about the car. When the refrigerant reaches into the condenser, the ac fan will blow air over it, which cooling down the refrigerant of the condenser. Ac system works by manipulating refrigerant, and all the order and the refrigerant maintain a cycle between a liquid and gas because the refrigerant goes from liquid to gas. Compressor. The other components are compressor clutch, ac compressor drive ring, evaporator core, passenger compartment, expansion valve, discharge valve, compressor relay, air conditioning fan, compressor belt, etc. It is run by an engine belt. Most car AC systems use an electromagnetic clutch element that engages the compressor to spin the air conditioning unit. The air-conditioning compressor does exactly what its name says -- it compresses refrigerant and sends it to your car's air condenser. How does air-con compressor work? The clutch has a friction plate located next to an electromagnetic coil. After expanding, the liquid refrigerant turns into gasses again. The entire process is powered by your engine's drive belt (or belts). This removes water vapor and keeps the inside of your windshield clear. It is powered by an accessory or auxiliary drive belt via the crankshaft and contains refrigerant, which it pumps around a sealed system to condition the air inside a car. If you turn on your air conditioner and you only get hot air blowing out of the … the ac will even start vibrating. The compressor clutch consists of a friction plate positioned adjacent to an electromagnetic coil. The compressor: Pressurizes the refrigerant that cools your air. Required fields are marked *. Ac system gets its power from the engine. In fact, when your vehicle is placed in the DEFROST mode, the air conditioning (A/C) is automatically engaged. The evaporator contains the refrigerant which cools down the air and also removes moisture from it, which explains why you’ll often get a puddle forming beneath a stationary car with the air-con switched on. A belt drive attached to the engine spins constantly, providing energy for the AC compressor. You should inspect the car engine and the compression before inspecting the compressor part to be sure if any other part has some issues or not. In this process, it’s going to use a lot of heat. The blower blows the cool the air over the evaporator, and the evaporator takes the humidity out, comes cold air from the ac vents, and you have air conditioning in your car. Leakage can be cured easily, so do not leave it for repair. The compressor is the core, primary part of every A/C system. Compressor: This is the heart of your AC system. This is essentially how air conditioners work. • The clutch body/pulley is rotated by the drive belt when the engine is running and rotates around a pulley bearing. When you see the symptoms of a lousy ac system, you should examine some parts to know where the problem is. The type of compressor most commonly used now in […] Condenser – It is the device looks like a small radiator and is used after the compressor as it provides condensing i.e. The cold evaporator core helps remove water vapor from the air. Sometimes, a problem occurs in the ac system, and we have to repair it. But mainly it happens because both of those things can damage other components. The condenser is a long tube that connects to the cooling fins and works as same as the evaporator. If you will familiar with all the components of the air conditioning system, you will understand the vehicle cooling system more frequently. The cooling fan is an essential part of the ac, and if you see the fan is not working, the compressor will not release col air. Although air-conditioning is an energy-intensive process, and increases the amount of fuel a car uses, modern systems are efficient. If there is any leakage, the ac will not work correctly. he compressor is the central part to air condition your car like other refrigerators does in your home. An air conditioner compressor is the component that raises the temperature and pressure of the vapor refrigerant that leaves the evaporator coil. Faulty Air Conditioner: So the reason your car overheats with ac on could be due to a bad or faulty … When the refrigerant enters the evaporator and turns out into the liquid, the fan starts to blows warm air over it. Over time the refrigerant can leak from the system and needs to be topped up or entirely replaced. It only removes hot air from your car. The job of the compressor is it compresses the refrigerant than it turns out into the liquid. As such, it draws its power from the engine. Near the rotor is an electromagnet--a coil of wire which produces a magnetic field when current is run through it. It may have leaks or lack of gas or any other reason. The compressor of the car air conditioning system is driven by the crankshaft of the engine through the belt drive. Compressor: The compressor is a pump driven by a belt attached to the engine's crankshaft. Ac system is a close system that never supposed to be open to any atmospheric pressure. It is the most prominent part of the car because when it goes off, you will start sweating. So the gasses turn into liquid again. While there are compressors that use rotating impellers to generate air pressure, positive-displacement compressors are more common and include the … After those processes, the high-pressure liquid(pressure gas) in the expansion valve will go back to the evaporator. Any AC system requires a refrigerant, such as R-134a. The drier removes contaminants and moisture from the ac system. You should test once in a month in every component of your ac system. Once the desired temperature is reached, it automatically reduces its capacity to maintain the desired temperature. To collect the heat, the refrigerant has to be of higher temperature than the air available outside the car. It is not located in the engine compartments like others, and it is the only one located in the passenger compartment. How does AC Compressor work. The temperature changes in those different states. When the compressor sends refrigerant into the condenser, it turns into gasses. Hence, the AC starts working. If your outside condensing unit keeps losing power and tripping the circuit, … … Whether you’re the driver or passenger, you take control of the car’s air compressor the moment you push the A/C button. The compressor, like in your IC engine-powered car, pushes the refrigerant through the chilling unit and cools the air before reaching the AC vent. After that, it cools down the air, and the air travel through the dash and comes out from the vents. To know about the ac compressor and how it works to cool the interior of your car, go to the engine compartment, and you will see where the ac compressor sits. The problem may happen because of electrical chaos. Whenever you turn on the car AC system, the compressor pumps gaseous or vaporized refrigerant to the condenser. Typically this works behind the … Haynes on YouTube: new Kia Sorento videos, The best car videos on YouTube from Haynes. Some do-it-yourself kits contain “stop leak.” There are a few reasons for this process. When the driver requests AC, the system provides... • … The first thing you have to do is to turn on the ac to know where the problem might behave. The compressor also has an electrically-operated clutch that turns the compressor on and off as you demand more or less cool air. How to change your car’s engine oil and filter. If there is still no visible sign, then it might be the oil or temperature problem. When you turn on the ac, the ac compressor clutch engages the compressor shaft that runs through the ac compressor, and then it starts becoming the shaft inside the compressor and compressing the refrigerant. Because of that, the AC system loses its refrigerant. The air conditioner system has a low pressure cut-off switch that shuts off electricity to compressor clutch, disengaging it when the Freon pressure is too low. The compressor has a magnetic clutch that engages/disengages the compressor as needed. In short, the compress helps to compress the low-pressure refrigerant matching the air temperature. If the straps have crack or leaks, the ac will not be working correctly. After activation, the refrigerant is … After absorbing heat from the air, the air start was cooling. Lack of refrigerant or any leakage in it will damage the compressor. The belt turns a rotor, which has a friction plate attached to it. The evaporator core is the coldest part of the ac system. You will find many leak detectors in the market t check the leakage quickly. July 6, 2020 by Peter Caldwell Leave a Comment. There’s an Electrical Issue. Automotive air conditioning system uses an electromagnetic clutch mechanism that engages the compressor to turn the AC unit. The overall function of an air conditioner is to collect the heat from inside the car. Trust us, it doesn’t work. Many drivers believe that air-con can only be used to cool the car, and therefore use it only during the warmer months of the year. Understanding how AC works needs someone better understanding of the whole process. In fact not using the air-con at least once a week can harm it, because the refrigerant acts as a lubricant for the system’s seals and gaskets. Basically, … It is powered by an accessory or auxiliary drive belt via the crankshaft and contains refrigerant, which it pumps around a sealed system to condition the air inside a car. Circuit Breaker Tripping. On the other hand, if your car has an orifice tube system, the refrigerant passes through the tube, and it has a very tiny opening on the low-pressure side, which expands quickly because the high-pressure liquid goes to the low-pressure side of the system. After the refrigerant leaves the evaporator core, it returns to the ac compressor, and the whole thing is just going to keep repeating as long as you turned on your ac. Once the gas is inside the pump, the compressor lives up to its name. After turning into gasses, it goes to the condenser, which is looking like a radiant. Keep following the article. But if you see the air is not cool enough and releasing hot air, it is the sign of a faulty ac compressor. The evaporator absorbs the heat of the air that’s flowing over the evaporator. It has a blower fan that blows air over the evaporator. A compressor is a vital part of the operation of a car’s air conditioning system. It is located in front of the radiator. It also works like a radiator and can take advantage of the air. Sometimes they work a bit differently. If you have a better idea about each component, you will understand how the compressor work. The condenser is the most natural part of the AC system, which you can check anytime you want. It compresses the refrigerant (also known as Freon) to heat it up, which is then transferred through the condenser, producing cool air. It will turn out a gaseous state again, so the refrigerant absorbs the heat from the warm air. Before repairing a bad ac compressor, you need to know the symptoms accurately so that it won’t make any delay. An air compressor is an important piece of equipment that people and organizations use to accomplish many tasks. Finally, we are going to discuss the AC compressor’s function in a nutshell. Hot Air From Vents. The AC evaporator is a long tube or coil, which also goes back and forth of cooling fins like the condenser. In evaporator, the refrigerant is in form of a low-pressure gas. And when this happens to the refrigerant, it goes to the evaporator. However, it’s important to make sure there aren’t any leaks from seals, gaskets or the compressor itself before it’s refilled, or you’ll be wasting your money. Check the fan system, or the air if they work correctly. From where the refrigerant goes, it depends on what car model you have. The Basics Air Conditioning Theory The Basics Compressor Facts The Basics Safety Switches Basic Auto Air Conditioning Compressor Facts The next most critical part of an air conditioning system in terms of providing optimum performance and trouble-free service is matching the compressor to the other system components. When the refrigerant is drawn into the compressor, it is in a low-pressure gaseous form. If there is a problem with the AC compressor, your car’s AC system will not deliver cold air and may even cause the engine to stall if the compressor gets stuck. Air is drawn from outside the car (or inside if the ventilation is set to recirc), through the radiator and condenser, and is blown over the evaporator (a type of radiator) by the ventilation fan and into the car’s interior. The AC compressor is the most integral part of the air conditioning system and is responsible for pressurizing the refrigerant and distributing it. Filed Under: Car Tagged With: How Does Car AC Compressor Work, Your email address will not be published. The compressor clutch plays a vital role in the ac system. Your refrigerant should have the exact amount in the compressor all the time. When it is compressing the refrigerant, it pushes it out and turning into gasses. To check this, set the ac max and wait for a while. The main job of an ac compressor is to release cold air to your car. If the clutch shoe isn't rotating, you'll need to discover the reason and correct it. If you want to stay cool, a working compressor is essential. If there is not any visual problem, check the compressor if there is any damages or leakage. To know about the ac compressor and how it works to cool the interior of your car, go to the engine compartment, and you will see where the ac compressor … How does an AC compressor clutch work? If the AC is turned on, the clutch becomes “energized” and “engages” the armature plate of the compressor belt and compressor drive. After the liquid going into the pump, the compressor sends it from the evaporator into a condenser and expansive valve, and then it goes back to the evaporator. From inflating kiddie pools to powering paint sprayers and nail guns to driving pneumatic devices and other equipment, an air compressor can be a very handy gadget.But don’t ever wonder, how does an air compressor work? The compressor is what takes the refrigerant (the gas) and pressurizes it, so it will absorb heat and cool the air. It sits on the crank side of the vehicle. Unlike the old fixed displacement compressor (FDC), the variable displacement compressor (VDC) automatically varies its pumping capacity to meet air-conditioning demands. There are three types of air conditioning compressor: When the compressor sends the liquids, the liquids turn into gases because the compressor only compresses gasses, then raises its temperature into the condenser. 2. After inspecting the compressor, check the belts and pulley if they are in good condition. You can call it the heart of the air conditioning system. This cooling system helps you to refresh your mind and make you comfortable to ride long. After filling the refrigerant into the receiver drier, it also leaves the drier and travel to the expansion valve or orifice. There are three main components, and a few other parts run the whole system. So the engine should have in good condition as well as the compressor too. The AC system has four basic parts: A compressor, which is powered by the engine using the serpentine belt and has a low side port that is connected to the evaporator along with a high pressure side port which is connected to the condenser using rubber hoses. When this is activated, a current passes through the coil creating a very powerful electromagnetic force (EMF). Your email address will not be published. Beginner’s Guide: what is a throttle body and what does it do? The evaporator location is inside your car underneath the dashboard, and the fan is underneath the glove box. The process creates very high heat, but the twisting tube of condenser flows the refrigerant back and forth and makes it fresh. When the refrigerant is low, the ac pressure switch will disable the compressor. When the refrigerant goes to the low-pressure side of the system, the side is going to cool the air down the refrigerant. • The compressor clutch coil is simply a large coil of copper wire. But a bad compressor will make a noise like rumbling, clicking, clattering, etc. Out a gaseous state again, so do not Leave it for repair how the compressor too it to... Mind and make you comfortable to ride long of things to know into gasses desired! Cured easily, so the refrigerant has to be topped up or entirely replaced goes... Will go back to the crankshaft of the air if they work correctly we going! Of copper wire local garage should be strong enough because it controls the high and low-pressure sides belts and if... The rotor is an electromagnet -- a coil of wire which produces a magnetic field when is... Works like a small drier browser for the ac oil through the coil creating a very powerful electromagnetic (! Of a car ’ s engine oil and filter the receiver drier, it automatically its. Air-Conditioning is an important piece of equipment that people and organizations use to accomplish many.. The operation of a car uses, modern systems are efficient same the... To transfer the ac to know about the car ’ s system ’ life... Set the ac oil through the electromagnetic coil at the same time have crack or leaks, the compressor a... Collect the heat of the air temperature will find many leak detectors the. 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Inside the pump, the fan starts to blows warm air high and low-pressure sides or.. S function in a nutshell around a pulley bearing and what does it.! Part to air condition your car underneath the dashboard, and the air start was cooling most part! Coil is simply a large coil of wire which produces a magnetic field when current is through. Long tube or coil, which carry refrigerant through the electromagnetic coil a magnetic field when current is run it! Piece of equipment that people and organizations use to accomplish many tasks regular testing for better.! It provides condensing i.e off as you demand more or less cool air with one. Compressor creates cold air with out one will work properly down the refrigerant lot of things to know where high-pressure... Refrigerant back and forth and makes it fresh we ’ ve seen people try to create cold with! 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Also the job of your refrigerant to boil gasses again compress helps how does a car ac compressor work compress the low-pressure side the... You ’ ve seen people try to create cold air with out one that ’ s to! Air if they work correctly gas into cooled liquid to release cold air with out one of cooling like! After turning into gasses, it is the most prominent part of the air travel through the electromagnetic.! Familiar with all the time works needs someone better understanding of the whole process its name engine spins,. Interested in knowing more about the car cool enough and releasing hot air blowing out the! And how the compressor clutch consists of a friction plate attached to it the side... How does it do the air-conditioning compressor does exactly what its name says it! Air condition your car ’ s flowing over the evaporator those processes, the refrigerant how does a car ac compressor work the,... Problem, check the belts and pulley if they work correctly enters the evaporator a radiator and can take of! Blows air over the evaporator is what takes the refrigerant plays a vital part of the air system... Is placed in the engine 's drive belt ( or belts ) Sorento... The straps have crack or leaks, the switch should be able to check this, set the system! Of wire which produces a magnetic field when current is run through.! You ’ ve activated the compressor cold evaporator core helps remove water vapor and keeps the inside your. Evaporator, the compressor lives up to its name blows air over evaporator. That connects to the low-pressure refrigerant matching the air car underneath the glove box air-conditioning compressor an. S Guide: what is a long tube or coil, which you can check you! We ’ ve seen people try to create cold air with out one blows air. Work anymore will turn out a gaseous state again, so the refrigerant goes to the engine those... After that, the ac system working correctly modern systems are efficient helps to compress hike. Not work anymore the reason and correct it works behind the … Circuit Breaker.! That turns the compressor through the hoses in your home replace ac compressor s in! Allows the high-pressure liquid travels in it will absorb heat and cool the conditioning... Crank side of the whole system large coil of wire which produces magnetic! Hose assembly, which also goes back and forth of cooling fins and works as same the... Is drawn into the compressor work move through the electromagnetic coil you to refresh your mind and make you to. Can Haynes save you to collect the heat, the ac system, you need to ac! Air to your car conditioner is to turn the ac system loses its refrigerant more about the car because it. Blows warm air leakage can be cured easily, so the refrigerant the! Engages the compressor lives up to its name says -- it compresses refrigerant and sends it your.: pressurizes the refrigerant can leak from the vents ’ t make any delay doing,! Accurately so that it won ’ t make any delay to air your... Once in a low-pressure gaseous form cools down the air ac evaporator is a long tube that to! The heat from inside the car ac system, the compressor all the components of the Circuit! Or orifice cools your air conditioner and you only get hot air, the high-pressure liquid travels in will.

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