The absorber fuel in the context. Electromagnetic valve adsorber

According to the new Euro-3 environmental standards, equipment must be installed on all vehicles that impede harmful evaporation from recycled fuel in the atmosphere. The main function on the capture and processing of fuel vapor in the car performs the adsorber, about the principle of operation and the design of which it is worth having the concept of each owner of the machine.

1

Environmental protection is definitely the topic is very important for our country. It should concern everyone, especially vehicle owners. Every year cars throw out huge masses of harmful evaporations into the atmosphere, from which our world will not be better. That is why each modern vehicle is equipped in which the adsorber play a key role. Depending on the composition distinguish the following types of details:

• with grain fixed adsorbent;
• with granular moving adsorbent;
• with a fine-grained adsorbent, the lower layer of which is always in a boiling condition.

The most effective features of the first type that most car manufacturers use worldwide are recognized. The second and third types of items are also able to prevent fuel vapor to the atmosphere. However, both boiling and rolling matter has a property to fall into the atmosphere together with recycled pairs. Therefore, to maintain the operation of the car vapor capture system, the number of active substances must be checked regularly. For this, each time you need to dismantle the adsorber.

2

The design of the adsorber with a fixed substance includes a housing filled with adsorbent. In the role of the latter acts activated carbon. On both sides, the adsorber is connected to special tubes that connect the device with the car fuel tank and the valve control.

Car adsorber work on the following principle: a pair of recycled fuel rises up. Further, on the hole in the neck of the fuel tank, evaporation enroll in the separator. There they are condensed, after which they fall back to the fuel tank. That part of evaporation that does not have time to undergo the stage of condensation takes place in the steam pipe, after which it is drawn into the adsorber. All this happens with the unused car. When the engine works, the fuel vapor capture system opens the electromagnetic valve through which air flows into the adsorber. This is where the process of purging the part. In this case, the fuel pairs remaining inside the element, along with the air enter the car engine. There they are recycling.

Thus, the adsorber performs a double function. First, the device prevents the emission of harmful substances into the atmosphere. Secondly, drivers get the opportunity to save a slight amount of fuel.

3

In connection with almost continuous operation, the EVAP system adsorber is very often out of order. At the same time, you can select 2 causes of damage to the part:

1. The electromagnetic valve is not sealed, and the tube on which the evaporation pairs go into the engine, clogged. In such a situation, evaporation pass inside the intake manifold, clogging it. If the car stopped starting the first time or not start with an incomplete tank, it is direct signs that it is necessary to clean the tubes and check the tightness of the valve.
2. There was a clogging of the tube, but the valve remained hermetic. At the same time, in hot weather, evaporation will be accumulated in the fuel tank, increasing the pressure inside it. The direct feature of such a breakdown is hissing when the tank is opened.

Having found a malfunction, many owners immediately buy a new adsorber and run in the nearest one hundred. However, to do it every time the device was clogged, there will be many drivers not by pocket. Therefore, in order to save time and 6-7 thousand rubles, we can repair the adsorber themselves.

To repair the system, there is no need to buy additional equipment. All that we need is a set of keys, screwdrivers and a file. The adsorber fuel system is in the wheel arch near the car engine. To get to the details, we do not need to dismantle other elements of the car.

To begin with, open the hood cover. Further we are looking for fasteners fixing the adsorber. In some models, they are, in other machines - are missing. Pull the adsorber, unscrew its cover. Next, we scroll through the bottom of the part. It is necessary to do it extremely gently, since all the coal can be saturated out. It is desirable at the beginning of the work to make small cuts from a wide side of the body and stuck them with a scotch. Next, inspirate the adsorber for the remaining edges. The depth of the cut should be no more than 10 mm. It is not worth cutting deeper, because with the inside of the body there are tubes, rambling activated carbon. After we saw the bottom, turn the adsorber and spare the scotch. We disassemble the bottom part of the design part, pulling out all the springs and filters. Carefully pour coal. Next we see intermediate filters, pull them out and check for damage.

Some manufacturers are equipped with adsorber foam filters. This material has a big drawback - over time it turns into a duch, scoring the adsorber and tube. It is best to replace the foam filters with gaskets from felt. This material is slower and much better passes the fuel pair.

After we cut the gaskets of the desired sizes, gently apply them to the walls of the adsorber and process the design of the sealant. Using the moment, it is also worth replacing activated carbon into the details. After that we collect the adsorber. To cut 2 parts of the device, smear the edges of the upper half with epoxy resin and apply the lower half to it. For better fixation of the device, it can be additionally wrapped in scotch. At the finish stage, we collect the entire design in the reverse order.

It will take no more than two hours. However, the amount saved on the new adsorber is worth the time spent.

Someone did not particularly worry the level of pollution by environmental cars. But in our age of concern about ecology, each produced machine has a fuel absorber. What this should know every driver, because it will definitely be changed this device after a certain time.

Brief information

Adsorption is called The process of absorption of one substance (more sparse) other (more dense) . In this case, the transformation of some chemicals to others does not occur. This principle is based on the use of human life in various spheres - from medicine to industry.

As absorbing substances apply:

• Carbon containing a substance of organic origin, having pores;
• Dried gel;
• Calcium and sodium aluminosilicates;
• Various minerals found in natural medium.

Starting from the second generation of the ecological standard of the Euro series, all manufactured cars must have a special capacity to absorb gasoline or diesel vapor. European manufacturers neglecting these rules are fined. Foreign violators losing the European market.

The absorber is a small cylindrical container, located under the hood of the car in the immediate vicinity of the engine.

Often motorists make a mistake in writing a word "Adsorber", replacing the letter "d" on "b". The erroneous version is very common, but the normative is still aDSORBER.

What is the absorber in the car?

Adsorption of fuel vapor occurs in each modern car model. Thanks to this technology, it is possible to achieve such goals:

• Significant gasoline savings. Thanks to the design of the absorber, part of the fuel gases, which managed to condense, ride back into the benzobac.
• The inhabitants of the car's cabin will no longer disturb the unpleasant smell, which took place in many old models.
• The lid of the gas tank now opens much easier. Back in the past generations of cars in hot weather, the pressure in the tank increased so much that it was physically difficult to open the fuel tank.
• Manufacturers declare high friendliness of cars with an environmental absorber. After all, thanks to these, non-slip devices, the gases are not entering the air for the atmosphere. Given that cars in the world there are several billion, environmental benefits becomes quite obvious.
• Safety. Thanks to the work of the vapor absorption system, it is possible to reduce (albeit not much) the explosion of iron horses working on liquid fuel.

Principle of operation of Absorber

The adsorber action mechanism is as follows:

1. In the rest of the engine engine, in the gasoline tank begins to increase the pressure of gases evaporated from the fuel surface.
2. These pairs come into a special container where they are divided into a liquid and gaseous fraction.
3. The fluid flows back into the benzobac, and the gases under strong pressure go through the tubes in the absorber.
4. After the driver turns the ignition key, the electronic car circuit will give a signal to open the valve on the motor.
5. Gazes begin to escape from the absorber.
6. The entire amount of accumulated vapors enters the combustion chamber of the combustible mixture.
7. After entering the engine, the substance has been completely combustion from the adsorber.
8. The number of gases entering the engine depends on the time interval in which the valve was opened.

Disadvantages of the device

Despite the fact that the absorber has almost all the car sold on the market, it does not mean that it is devoid of flaws:

• The dimensions of the device are quite significant, because of which it occupies a fairly large useful space in the front of the car;
• Essential high-rise installation. Put this device on an old car - quite expensive pleasure, which can hardly recoup some fuel economy. All cars included from the conveyor include a fee for the absorber as an accommodation for the cost.
• In the environment of motorists, the opinion is common that the device "stifles" engines of internal combustion and significantly reduces the dynamics of the machine. Also, the turnover and response time of the gas pedal are also falling. All this, however, does not find any confirmation in modern studies.
• In the event of a breakdown, the driver should urgently go to the nearest technical center, otherwise the broken absorber will deliver a lot of trouble. The smallest thing that will have to face - the drop in engine power. In advanced cases, the fuel pump breaks. In addition, there are cases of accidents from the gas tank cover flying at high speed under pressure from vapors.

Signs of adsorber malfunction

The relative simplicity of the design of the absorber does not save the device from breakdowns. We list the main external signs of problems with the work of the absorber:

1. Gas pressure growth in the fuel tank, which is proclaiming the hissing sound when opening the fuel tank cover.
2. As an indirect sign, you can take into account the drop in the number of engine speeds at idle. It should be noted that this symptom can accompany the huge number of "diseases" of the car. Therefore, a more detailed examination is necessary.
3. Increase overclocking time. This happens because when problems with the absorber, the fuel pump begins to suffer first.
4. Specific fuel smell in the interior of the machine.

If you managed to detect several of these signs, visiting the technical maintenance center is necessary. It is necessary to keep in mind that the cost of replacing the device is large enough.

Some car enthusiasts at their own fear and the risk of saving money decide not to change absorber. However, such a connivance can exit much more expensive aggregates.

Toxic gases for the human body and nature, which accumulate in the fuel tank, is designed to absorb the absorber fuel. What this is for an integral element of the car design, they know, however, not all motorists. Some even decide to remove it in order to improve the dynamics of the motor. However, the negative result of such actions will not make himself wait.

Video about the operation of the fuel absorber

In this video, the mechanic Dmitry Oskin will show the principle of operation of the fuel absorber in a modern car:

All modern cars with automatic fuel injection, including "Lada Kalina", are equipped with a gasoline vapor capture system (SAP). This is a mandatory requirement for machines whose class of ecology begins from Euro-3. The system is designed primarily to exclude fuel vapor entering the atmosphere, but besides this, it allows you to maintain a stable engine operation, as well as save fuel.

One of the main nodes of the Supbo is the adsorber blowing valve. As he represents this element, as it works and for which it is designed, we will talk in this article. In addition, we will consider signs of the valve fault, the causes of failure, as well as describe the process of its replacement on the example of the car "Lada Kalina".

Why do you need a fuel vapor

Gasoline refers to the discharge of easily surrounding hydrocarbons, and its pairs have a high volatility. During the operation of the engine gasoline, which is in the tank, at least a little, but heats up. In addition, during the movement, he sways. These processes accelerate fuel evaporation, creating increased pressure in the container. Previously, car tanks had only a primitive ventilation system, which simply produced pairs through special holes in the atmosphere. Naturally, it applied a certain harm to the environment, and there was no speech about saving fuel at all.

The introduction of a gasoline vapor capture system made it possible to solve these both problems at the same time. With it, evaporation is not discharged into the environment, but are used as purpose, i.e. To ensure the engine operation.

What is the system for trapping vapors

Supbo in "Kalina" consists of the following elements:

• rejected and return fueling;
• separator;
• adsorber;
• adsorber purge valve.

As you can see, the system is quite simple. Consider the purpose of each of its elements separately.

As for the fuel pipelines, it is simply a tube on which gasoline evaporations leave the tank, as well as on which fuel returns back to it. The separator serves to collect fuel and condensation vapor. The adsorber is designed to capture those evaporation that did not have time to go into a liquid state. Adsorber Purge Valve ("Kalina") We are needed in order to guide gasoline pairs to the intake manifold receiver.

How the system works

Fuel evaporation rise and concentrated at the top of the tank. When the pressure in the container rises, the pairs fall into the fuel line, and from there in the separator. There is a process of cooled and condensation. A part of evaporation settles on the walls of the separator, goes back to the liquid state and returns back to the tank on the reverse fuel line. Another part that did not have time to condense, enters the adsorber. The device is a conventional plastic jar filled with chopped activated carbon. Couples accumulate in the adsorber before starting the engine.

When we try to start a motor, the adsorber ("Kalina") joined the work. The signal for its opening is supplied from the electronic engine control unit. At the time of launch, the valve opens, and the gasoline pairs through the pipeline are served in the intake manifold receiver. Thus, evaporation, which previously did not even take into account account, contribute to the economy of fuel, and also do not pollute the environment.

What is an adsorber blower valve on Kalina

In fact, the adsorber purge valve ("Kalina") is a conventional shut-off device, activated by a conventional electromagnet. It consists of:

• plastic case;
• electrical connector;
• spring-loaded valve;
• electromagnetic winding;
• magnetic core.

Valve operating phases

When the engine is turned off adsorber Purge Valve ("Kalina") Deaded and is in a closed position. In other words, the pair capture system is blocked by the power unit. At this time, the evaporation of gasoline is concentrated in adsorber under pressure. At the time of starting the engine, the electronic control unit feeds power to the valve, driven by an electromagnet. It opens the locking device, and the gasoline pairs naturally are absorbed by when the engine stops its work, the valve is de-energized and overlaps the pipeline. Gasoline couples cease to enter the receiver. So working adsorber Purge Valve ("Kalina").

Some modern foreign-made industries are equipped with more complex devices. Their design is supplemented by sensors that allow the electronic unit to further obtain information on the saturation of the adsorber fuel in pairs, evaluate the percentage of air and based on the obtained data to control the fuel supply to the injector.

Adsorber Purge Valve Fault Signs

Adsorber Purge Valve ("Lada Kalina"), like any other electromechanical part, may fail. Signs of its fault are:

• the appearance of Check inscriptions on the dashboard (when testing, an error with code P0441 is determined, corresponding to the malfunction of the gasoline vapor capture system);
• swimming engine speed at idle;
• unstable engine operation while driving;
• increase fuel consumption;
• increased CO 2 levels in exhaust gases.

In addition, in Lada Kalina cars, the adsorber purge fault can manifest itself in the appearance of a characteristic smell of gasoline in the cabin. This phenomenon occurs when the pressure in the vapor trailing system exceeds the calculated indicators.

Valve's diagnostics is easy, but you need to know where to look for it.

Adsorber Purge Valve (Kalina): Where is it, and how to find out

Unlike the Injection Car of the Samara family, the adsorber from "Kalina" is not in the engine compartment, and next to the gas tank. Get to it without removing the fuel capacity, it is impossible. But the purge valve is located under the hood. It is fixed on the frame of the radiator, and access to it is always free. You can easily find him, having learned on two tubes, according to which, actually, a pair of gasoline is moving.

Valve check

Suspend that the device has failed, hurry to diagnose it and replace if necessary. No, his breakdown does not carry critical consequences. The car both traveled, so will ride, just the engine will work in emergency mode, and fuel will consume more. But how to check the adsorber blowing valve on Kalina on its own?

This process will not take much time. And all that you need from tools is a multimeter, screwdriver and pair of wires. Raise the hood, find the valve. Next, we disconnect the wiring harness from it. To do this, press the fixture lock fixator. First will check whether the voltage comes on the valve. Turn on the multimeter in the voltmeter mode. His black dipstick we join the "mass" of the car, and the red - to the connector "A" on the block of wiring harness. Turn on the ignition and look at the instrument readings. The voltage on the outputs must correspond to the battery voltage. If it is not at all, or it is significantly less, the problem is not in the valve, but much deeper.

If everything is in order with the voltage, go further. We dismantle the purge valve. To do this, weaken the fastening of hose clamps and remove them from the fittings. I shift the valve up the bracket and remove it.

Checking the device consists in connecting it directly to the battery terminals. We take one wire and connect it to the plus output of the purge valve. The second wire is connected to a minus and throw both guides on the corresponding battery terminals. At this point, a click saying that the electromagnet worked. In this case, you can read the valve of purging the adsorber worker. If, when connected, nothing happened, the device will have to be changed.

We change the purge valve

Trying to repair the valve - an ungrateful occupation. Yes, and it is inexpensive. Depending on the modification, the price of it can be from 350 to 600 rubles.

Replacing the adsorber purge valve on Kalina After checking and dismantling it is carried out using one tool - screwdrivers with a crossbow.

The procedure for installing the device is next. First of all, we attach gasoline passage hoses to the valve fittings. Screwdriver tighten the screws of the clamps. We establish the valve to the bracket and shift it on the guide downwards until it stops. We connect wiring harness. Turn on the ignition, run the engine. If his work has improved noticeably, the turnover became stable, and the error message disappeared from the dashboard, then we did everything right.

It seemed such an inconspicuous element, which at first glance is not important for the car, but without which it cannot work normally. There are failures, the engine "Troit" may even destroy the benzobac! And all this due to the faulty valve of the adsorber. Many do not know what it is, how it works and the most important thing that he influences. Today I will try simple words to decompose on the shelves, as well as describe the basic signs of a malfunction. Definitely it will be useful, so read - see ...

To begin with, start with the definition.

Adsorber (from Lat. Sorbeo - absorb) - This is a car system that serves to capture gasoline vapors that come out of the tank. With the engine running, they are sent to the fuel injection system, namely in. With a muffled motor, part of the vapor is captured by the separator (it directs them back to the tank), and the remaining couples come to the adsorber, where they are neutralized.

What did the adsorber create

Actually this is a tribute to the environmental standard, namely Euro-2. In essence, this is a large filter that catches light hydrocarbons. According to new standards, vapor gasoline in the atmosphere is unacceptable, because it contributes to the contamination of the atmosphere.

Also, couples should not pass into the car's salon, because it is gently to say harmful! On old carburetor machines, such a filter and its valve was simply not, there is a slightly different system. But the carburetor went along with the old standards, now only the injector and the filtering system is required.

Components

In fact, it is a big plastic bank, inside is activated carbon, because it is this composition that is beautifully struggling with gasoline couples. The main parts can be described like this:

• Separator + gravity valve
• Pressure meter
• Filtering part (usually from coal)
• Connecting tubes
• Solenoid valve

As you can see absolutely nothing complicated. Separator - It serves to capture part of the gasoline, after sending them back to the tank. Valve gravity - It is almost never used, however, it is needed in emergency situations, for example, when accidents, it prevents fuel overflows from the tank (for example, when the car overturned).

Pressure meter , Very necessary thing - it controls the pressure of gasoline vapor inside the tank, when necessary, opens and drops it, not giving structures to be damaged.

- As I wrote from above, a large bank, in which the coal powder is embossed, in fairly large granules. This is done so that the couples can easily pass and condense.

Connecting tubes - We need to connect all the main parts, filters, sensors and valves, I think it is understandable.

Solenoid valve - It serves to switch gasoline vapor capture mode, we will talk about it in more detail below.

How the system works - the principle of work

Why I focus on the electromagnetic valve, but because it is practically key in this system.

For a better understanding, I post a scheme of an injection car, and this case is the VAZ of the 10th family.

So, the fuel vapor climbs up the tank and stop on the separator, which is combined with the gravity sensor (as I wrote above - it prevents the flow of fuel in case of accidents - tipping from the tank). In it, they are partially condensed and returned back (in the form of liquid fuel).

However, the other part of evaporation, passes the gravitational valve, pass to the adsorber, where they actually accumulate. Accumulation occurs when the engine is invincible! IT IS IMPORTANT.

After starting the engine, the solenoid valve, it opens - thereby connects the cavity of the adsorber (where there are gases as it were in conclusion) with an intake manifold or throttle node (in different machines differently). The process of so-called purge begins! The pairs are mixed with air (from the street), which is served through the throttle assembly, then enter the intake manifold and after the engine cylinder, where they are survived with the air-fuel mixture.

The system is very simple, if you understand how it works.

What does the adsorber valve affect

Many problems are related to the adsorber valve. In fact, it is a very simple device that opens or closes under certain conditions (engine is launched or plugged).

If the valve works well, there are no problems at all, you may not even know about its availability on your system.

However, when a breakdown occurs, for example - the adsorber cavity itself is clogged, or the valve does not work. Then the car subsequently can get serious breakdowns. Because the cavity does not pass, and the pressure from the tank is not reset.

Adsorber valve fault signs

As it becomes clear, problems with the power system arise:

• Floate speed. But not immediately, but after about 5 - 10 minutes on the heated engine
• On idle, if the engine is running, you put the gas pedal - almost stalls. Such a feeling that fuel ends
• On the go, the car does not develop the necessary power, such a feeling that 10 - 15% engine power removed 10 - 15%
• Can go crazy the fuel tank sensor. Shows that - "Full", then - "empty", etc.
• If you open a tank for refueling. A strong whistle is heard as if vacuum was created inside.
• Increases fuel consumption
• On the cold absorber sensor can hardly knock, it is often confused with engine valves

It is also worth noting that the reason is not always in the valve, the bank itself can be clogged with activated carbon (that is, the adsorber cavity itself). If necessary, it needs to be replaced or disassembled and clean - dry, that is, to restore the filtering of gases so that they can be easily passing.

Now useful videos.

If you have these faults, it is necessary to watch it - and if necessary, change it, it is worth a penny. As well as the cavity itself with activated carbon.

Can I be removed

Some motorists neglect environmental standards and remove the adsorber valve. Words in principle are such - "Yes, why I need him, the car has become slower, the consumption has become more, in general I throw it away." But really, and is it possible to do it? Will there be worse than this car?

It is worth understanding that a serviceable system at all does not affect the operation of the engine, but even saves some fuel, because the pairs that remained in the main body are then surrendered in the engine, of course, it is not worthwhile that the savings will not be huge, but there are several mileage kilometers.

It is possible to clean, of course, a car simply for it "Vseivno"! It will even be better, because evaporation from the tank will not be condensed (cleansing), but to go straight into the atmosphere. That is, you seem to remove all the banks - the valve and give, an open air flow to the tank.

Physically do it like this - a fine cleaning filter from the carburetor VAZ hangs on the selection hose from the separator, the gasoline pairs go into the atmosphere. The hose from the valve of the adsorber, overlap, flash the engine (), otherwise an error will appear, that's all!

However, there are also cons:

• For example, in the cabin will often smell gasoline, evaporation will go (often) in it.
• The atmosphere is polluted by light hydrocarbons
• There will be a rack smell of gasoline next to the car (although it is controversial)

Pluses of shutdown :

• The place is released in the processionate space, the bank takes a lot of space
• Owning unstable work at idle
• No need to pay big money for the new adsorber and its valve

It seems to me that the system is quite useful, personally it was often annoyed - when gasoline was smelled in the carburetor car, from where you can only. They hit the head and then sick, this system allows you to avoid it, saves fuel slightly and does not pollute the atmosphere.

At this end, I think my article was useful to you, read our automotive, subscribe to the channel.

This is what entertaining information I found about the adsorber, it is terribly horror:
Due to the struggle for the ecology, b / tank does not have access to the atmosphere. Gasoline pairs through the pipeline go to the coal adsorber-receiver, and from it through the valve is entered into the input collector, they are involved in the process of mixing, and then, naturally, burned. During parking, the valve is blocked and the pairs accumulate in the receiver. After starting the engine, it begins to open the pulses from the bu.

The moment of starting the system may differ from different engines - some valve starts open at once, others have some time on time relative to the moment of engine starting. First you need to check there are control pulses on the valve. You can check on the sound (clicking) of the valve or checking the presence of control pulses on it. If with the engine running the voltage on the divide about 4.

5 volts - impulses go (voltmeter integrates rectangular 12V pulses). Next, turn off the engine, turn off the tube that goes from the valve to the adsorber and for convenience to wear instead of the fitting valve with a suitable tube. Puck in the direction of the valve collector. Must be - obstruction. Remove the connector from the valve, to file on it 12V and pour again.

Now the valve must pass. So, the adsorber-black bank was installed under the air intake, in the right wing, it has a diameter of 6 cm, about 20 cm longs With an atmosphere. The task is to protect the environment, it accumulates in itself a gasoline pair and then they are sucked by the engine. At the failure, although there is nothing to break in it, therefore it is more correct when it is clogged, the consequences for the car can
Be a catastrophic.

Consequences: 1) When clogged, the engine begins to suck all the air from the gas tank,
As a result, the tank is flattened with a terrible force, and in it benzanosos,
so fuel station is flattened by a tank with the same force that he is worn silent
2) When the adsorber is filled with a completely sudden gasoline from the tank, this gasoline begins to flow directly in the intake
The collector and naturally in the cylinders and the exhaust manifold. The ingress of a large number of gasoline in cylinders, when the engine runs is worn, a breakdown of the block head, pistons, etc.,
t.

K. Gasoline Netail incompressible liquid. Gas hips in the exhaust manifold is worried about lambda
and fusion of the catalyst. Such here may be the consequences due to the seemingly minor item. Retroitely after the engine warming more than 60 degrees, idle engine speeds are beginning to fall. On the go, the machine begins to heat without particularly visible causes (type 2 min.

Stupid 10 min. I fly). Dagnicity issues errors like: The adaptation limit or the adjustment of the mixture is over the allowable boundaries. The situation is exacerbated into wet weather or if you enter the puddle with the right wheel. If the above-listed symptoms are observed, it is worth checking the adsorber.

It is possible like this: to disconnect the hose running from the valve to the collector and stroke it and ride days 5, if the symptoms have disappeared, then the adsorber clogged. After the engine is muted, it is observed as a hose from the adsorber before the gas tank flows fluid. When the gas tank tube is unscrewed, you can hear how the air begins to be absorbed by the tank. When moving, the level of gasoline testimony is sharply.

After refueling gasoline of the full tank, the car stalls. If the above-listed symptoms are observed, then the adsorber is finally scored! The random movement is possible only when the tank is revealed, and better
Disconnect the hose running from the valve to the collector and drown it,
Otherwise, you are threatened above the listed consequences. If your car is more than 10 years old (of course depends on the operating conditions),
or more than 5 years but you drive on country dusty roads,
I strongly recommend cleaning the adsorber. From the http: // www forum. Forum. Skoda-Club.

RU / viewtopic. Php? T \u003d 4900.
Taken from: http://2114.ru.

According to Euro-3 ecology Eurostandard, the ejection of hydrocarbon vapor to the atmosphere, which occur during gasoline evaporation is prohibited. Given this, the scientists were invented a device that allows you to capture and neutralize the above-described pairs.

This "saving" device was the so-called adsorber or as some of them call - "absorber" (from the word absorbent - able to absorb, from part, such a name can also be considered correct), it is installed in the fuel system of the car in order to eliminate harmful vapors that Arise as a result of gasoline evaporation.

Today, we will try to answer the most popular questions related to the adsorber, so that you find out what it is for what you need and how does the fuel system adsorber work. As an example, we take VAZ 2110.

As an absorbent, which absorbs hydrocarbon evaporation acts as coal, which is filled with the tank of the adsorber. Where do couples come from? The couples, as already mentioned above, highlights gasoline due to the heating of fuel and constant stripping during the movement of the pair climb up, then, through the hole in the neck of the tank, enter the separator. In the separator, the pairs are condensed and flow into the tank, and some of the gases that did not have time to move from the gaseous state into liquid or simply to say the condensate, comes on the steam line into the gravitational valve and directly into the adsorber, which it neutralizes with activated carbon. This process occurs at the time when the motor does not work.

If the engine works, the control system by opening the electromagnetic valve performs the purge of the adsorber, after which the harmful pairs are thrown into the inlet pipe where they are burned.

The benefits of such a double system, since, first of all, the atmosphere is not contaminated with harmful evaporation, in addition, fuel saves, because, gasoline does not evaporate, but returns through the separator to the tank.

What is the adsorber VAZ 2110?

• Tubes and warehouse hoses;
• Petrol tube;
• Purge valve;
• Separator;
• Gravitational valve;
• Adsiser (activated carbon).

The article is cognitive, and possibly contains errors, it is recommended to motorists with a bad idea of \u200b\u200bthe adsorber.
The article is written relatively simple words for better perception.

1) what is adsorber

Often confused adsorber or absorber - right "adsorber" ...
Container with activated carbon, most often looks like a barrel (cylinder) with appliances and discharge hoses

Let's start with definitions:

Sorption (from lat. Sorbeo - absorb) - absorption of solid body or liquid of various substances from the environment.
Adsorption is the accumulation of something on the surface of the sorbent.
Adsoreber (from lat. AD - on, with and sorbeo - absorbing) - the device for absorbing the surface layer of the solid, called the adsorbent (activated carbon), dissolved or gaseous substances (fuel vapor), not accompanied by a chemical reaction
The gasoline vapor capturing system (Evap - Evaporative Emission Control) is designed to prevent leakage of gasoline vapor into the atmosphere.

2) Why is it needed?

The gasoline pairs formed in the tank climb up, and through the hole in the tank neck, first fall into the separator. There they are condensed and merged back into the tank. That of their part that does not have time to turn into condensate, through the gravitational valve on the steam pipeline, fall directly into the adsorber, where they are absorbed by activated carbon. This happens when the engine does not work. With the help of the solenoid valve, switching the modes of operation of the gasoline vapor capture system. When the engine is turned off, the adsorber is communicated with the atmosphere (a pair of gasoline fall into the adsorber from the gas tank) where they take place. When starting the engine, the controller of the injection system supplies control pulses to the valve, as a result of which the sorbent is purned. Gasoline couples are suused in the receiver and surrender in the combustion chamber.

3) Euro-2 and Russia-83
The question arises why there are no adsorber on cars with the norm-83, and on cars with the norms of Euro-2 and above it is?

Compare two cars - VAZ 21083 and prior vases, namely the power supply system:
VAZ 21083:

Through the drainage hose (15), the tank is associated with the separator (19) capturing the gasoline pairs. Condensate from the separator merges back to the tank. The separator is communicated with the atmosphere through a two-way valve (21) that prevents excessive increase or decrease in pressure in the fuel tank. The plug-in neck is connected to the tank rubber gas-resistant hose fixed by clamps. Tube hermetic.

Those. With increasing or decrease in pressure in the fuel tank, gasoline pairs are thrown into the atmosphere.

Vaz Priora:

Fuel pairs that hit the tube from the tank to the separator (16) are partially condensed in it. Condensate from the separator through the tube merges back to the tank. In the upper part of the separator, a gravitational valve is installed, which prevents the flow of fuel from the tank when tipping the car. Fuel pairs through the separator gravitational valve and the tube connected to it is accumulated in the adsorber (1) with an unnecessary engine. With the engine, and others, the required conditions valve (14) informs the cavity of the adsorber with the throttle knot - and the sorbent is purned: gasoline pairs are mixed with air and remove through the throttle assembly in the inlet pipeline and then in the engine cylinders.

Those. Fuel vapors accumulate in the adsorber, during operation of the engine are blurred by the valve and fall into the Rexiver, and after the engine itself to the harvest.

Euro-2 standards are prohibited by the contact of the ventilation of the fuel tank with the atmosphere, the gasoline pairs must be collected (adsorbed) and when purging it to the cylinders to the downloads. RUSSIA RUSSIA-83 CONTACT OF VENTILATION OF GASTRUBACK WITH ATMOSPHERE was not prohibited.

4) Pros and Cons Adsorber:

The atmosphere is not polluted by unnecessary, harmful evaporation;
+ Small fuel savings, gasoline pairs will not evaporate, but burn in engine.
+ lack of persistent smell of gasoline (controversy)
- occupies a place in the workpiece of the prostacy
- Unstable engine work at idle while faulty adsorber
- The cost of adsorber

5) Why some motorists remove the adsorber

Some motorists remove the worker adsorber with phrases: "I don't like it, throwing it out," the car has become slower from him, "the" consumption with him is more "," a stupid thing "- in fact, the working adsorber does not affect the dynamics, the flow rate will rather be reduced - In general, the thing is useful.
Others remove the adsorber when it comes into disrepair, the replacement is not made due to the high cost of the adsorber.

It is removed simply: a fine cleaning filter (Ave. from carb. 2108) is covered with a separator hose. The hose from the valve overlap. The engine control program is adjusted, otherwise the engine error will appear.

6) Adsorbers in foreign cars (photos):

Do you need an adsorber? This question is worried about the many owners of Togliatti cars. The adsorber VAZ 2114 appeared after the introduction of Euro-3 environmental norms that demanded installations on devices machines allowing you to delay evaporating fuel so that it does not fall into the atmosphere. The black cylinder mounted on the VAZ on the right in the corner of the engine compartment near the radiator, this is the absorber VAZ 2114, which will be considered by us.

Principle of operation of adsorber

Adsorption is the process of absorbing gaseous substances with solid or liquid. For example, in the first gas masks used filters in which the adsorber was activated carbon. In the car made about the same, but a little more difficult. The cylindrical plastic body of the adsorber contains a special filler capturing a pair of gasoline. Absorber VAZ 2114 does not end only with a can with a filler, nozzles and valves are connected to it.

The absorber VAZ does not affect the consumption of fuel, it is installed only in order to increase engine environmental friendliness. Fuel pairs as the gas tank is emptying rise to the neck and fall into the separator. There, they turn into a liquid state and return to the tank. And the part that did not have time to condense falls into the adsorber, which is filled with the activated carbon, absorbing harmful gases. It happens with a plugged engine.

When the motor works, the absorber VAZ is blocked using a special valve, all gases are burned in the car exhaust system. As for the consumption of fuel, it changes in minor limits. The main goal of the adsorber is only in neutralizing gasoline vapor. This is a container with activated carbon equipped with supplying and discharge hoses for gasoline vapor.

Possible troubleshooting

Absorber VAZ 2114 in its purpose is subject to clogging and at some point may be faulty. Problems are not easy and often only in secondary symptoms, for example, to increase the pressure in the fuel tank. Just the gasoline pairs due to the separator wear remain locked in the tank space and begin to put pressure on its walls. Pressure growth can be detected when unscrewing the tank cover - a characteristic hiss is distributed.

Sometimes the lid of the gas tank simply shoots out of the neck, it means that the pressure has reached a critical degree and the adsorber must be urgently changed. With malfunctions with the adsorber, the motor turns start jumping up, then down. Many car owners write on the forums that you can remove the VAZ absorber and not to suffer. But everything is not so simple, and no extra details in the machines never happen.

One removal of the absorber is not enough, you need to think about what to do with gasoline couples, which there will be no place to withdraw, and that the ECU also may have to reconfigure. After all, some types of engine boards are a malfunction in the purge of the fuel system and translate the motor into an emergency mode in which it will not work normally.

As for malfunctions, the problem venue of this adsorbing system is a purge valve. It can be repaired with his own hands. It will take only a flat screwdriver, but care should be taken when removing. It's not a metal, but plastic, it is easy to break it, often. It is fixed on the engine cover. On the valve itself there are still clamps, also requiring a neat approach. Remove them and get a problem detail.

If the valve is at the valve and at the same time the air will go from it, it means one hundred percent malfunction. There will be no normal detail of the air. The machine for malfunctions with valve is experiencing problems on the hot engine start, the consumption of gasoline increases. If the problem is not eliminated, there will be a check engine and loss of normal movement dynamics. Violation of the tightness of the adsorber and the failure of the purge valve can be the causes of the unstable operation of the engine at idle until it stops.

So, we turn to the repair of the valve. In its upper part there is an adjustable screw fixed with epoxy resin. Screw the screw until it stops, counting the turnover so that you can return the adsorber valve to the initial position. In the valve fittings, it is possible to drop a little flushing fluid for the carburetor. Then blow it in the open position with compressed air. Repair made.

The reason that the adsorber valve is clogged, low-quality gasoline becomes, as well as particles of the adsorber itself. Therefore, it is not necessary to immediately change the flureflow. The malfunction of the adsorbing parts of the fuel system in addition to the already specified signs can be detected by the smell of gasoline in the cabin. This usually means either a cliff of one of the pipes of the VAZ absorber system, or the failure of the purge valve already described.

The valve can also wear out from heating near the radiator, and here it will not help him. The quality of the material from which the adsorber valve is manufactured is not the best. The solution may only replace or change the location to a cooler, for example, closer to the adsorber itself.

Features of removal

VAZ absorber sometimes remove at all. To do this, you need:

• change the gas tank bar on a leakage;
• stroke feed and discharge nozzles;
• often change the firmware of the computer.

As already mentioned above, you should not approach the adsorber as an unnecessary thing, and if we decided to remove, remove it correctly so that the benzobak remains ventilated, and not tightly trembling, as if there is an adsorber. Those who rewor the carburetor motor into the injection, there is an advantage. If they do not touch the tank nozzles, they do not disturb the carburetor ventilation system of the tank, so they do not need an adsorber.

Causes of adsorber malfunctions on VAZ

But in the case of the VAZ 2114, which engine is injector, everything is more complicated. However, remove the absorber does not mean. The advantages that absorber VAZ has, in reducing harmful emissions into the atmosphere, they end up. And the high cost and the fact that it can interfere with more important details in the rotor space becomes mostly reason for removing the device. Why do some drivers go to this difficult decision?

Mostly the device, they simply do not like it, but this is not an argument. Experienced motorists remove it when the fault occurs in order not to spend money on a new one. It is removed simply. A flutter filter (usually from the VAZ 2108 carburetor 2108 usually), in which case the gasoline pair goes into the atmosphere. The hose from the valve overlap. The engine control program is corrected so that the ECU does not include Check Engine.

In the tank cover, it is better to drill a hole in 2 mm to make ventilation, like on a carburetor motor. Otherwise, the tank may not withstand either external or internal pressure. Most often in the tank there is a vacation and sminets, as an empty tin can. Many car enthusiasts talk about it in editing beginners. What is needed to remove the adsorbing device for the purpose of replacement?

To begin with, it needs to be released from fixings. Disconnect the block together with the wires, as well as the hose for supplying gasoline into the throttle knot. Removal valve removed, the hose of the release of fuel vapor removed from the separator. The adsorber bracket is set to 3 bolts that need to be unscrewed, and the bracket can be carefully removed. The new device is installed on the same special fastening, and the fuel vapor supply hose is connected to the purge valve. Remember: By changing the adsorber, you need to change all the nozzles from it.

Take care of nature and do not throw away the adsorber. As a last resort, it is better to put a new one, since this is an ordinary filter that works for a very long time and does not require constant control. Environmental norms are invented not harmful, and in order to live our children and grandchildren after us.

Do not forget that the DPS inspector and technical inspector staff can try to intervene in the design of the machine, then the technical control will not be able to pass. Listen to the advice of experienced motorists, watch your car, be polite on the road, then any trip will only bring a good mood.

Upon contact of gasoline with air, vapors are selected, which, falling into the atmosphere, worsen ecology. To capture them in the ventilation system, an adsorber is installed. In a number of European countries, the use of this device in the car is mandatory at the legislative level and is determined by the action of ecological standards Euro-2 and above. Knowing the adsorber device and why it is necessary, you can easily determine the faults, and it is also better to understand its advantages.

What is adsorber and EVAP system

Many motorists call a device for the absorption of fuel vapor "absorber", but it is incorrect because the name "adsorber" comes from the Latin words "AD" (in Per. - "on") and "Sorbeo" (in Per. - "Absorbing") What together means "surface absorption" (accumulation on the surface). In turn, absorber absorbs all the volume and in this case cannot be used.

Fuel vapor sequence

Since the largest number of vapors accumulates in the fuel tank, then there is an adsorber not far from it. In fact, it is part of a whole system for trapping gasoline vapor (EVAP). The latter consists of the following elements:

• Separator of gasoline vapor.
• Adsorbent element - an adsorption container.
• Ventilation valve.
• The electromagnetic valve of the addition of the adsorber (located between the adsorber and the intake manifold).
• Pipelines and hoses for connecting fuel tank, intake manifold and atmosphere.

In addition to the main elements, the EVAP system is part of the OBD-II on-board diagnostic system and includes a number of sensors (fuel evaporation, pressure) and an electronic control unit (ECU), driven by an electromagnetic valve.

Types and principle of adsorber

Depending on the substance used, several types of adsorbers distinguish:

• with a fixed grainy adsorbent of medium fractions;
• with mobile grain adsorbent of medium fractions;
• with a fine-grained adsorbent, in which the lower layer is in a state of boiling.

The first type of systems in which activated carbon is used as an absorbent component.
The adsorber has three outputs for connecting pipelines. The first is intended for the admission of gasoline vapor, the second is connected to the electromagnetic valve, and the third with the air filter, which provides a pressure drop required for purge.

How Evap works:

1. The car is at rest, the engine is turned off.
2. In the fuel tank there is a natural selection of gasoline vapors, which rise in the upper point and accumulate in the neck.
3. In this tank zone, a separator is located, which separates the liquid component that it settles in the form of condensate and is given to special tubes back to the benzobac.
4. The remains of vapors that are not measured in the form of condensate pass through the steam pipe, falling into the adsorbing element. They gradually accumulate on the surface of the adsorbent.
5. The driver starts the engine and the electromagnetic valve of the adsorber purge valve starts to operate when the specified rotation frequency is reached. When the machine is idling, the valve does not work.
6. Through the ventilation valve into the adsorbent element due to the pressure drop of air (between the intake manifold and the atmosphere), and purge is performed.
7. Air and pairs of gasoline from the adsorber are served in the engine combustion chamber.

Signs of adsorber malfunction

The main fault of the adsorber is the contamination of the absorbing element, which occurs naturally. In this case, the pressure in the tank will increase, because evaporation will not be given. The characteristic feature of this will be hissing when opening the gas tank cover. The fall of the engine revolutions, which many motorists mark, can also be the cause of clogging of the adsorber.

Another important malfunction may be a disruption of the tightness of the electromagnetic valve. In this case, the adsorber sensor can produce a Check Engine error through the diagnostic system. A sign of the tightness of the electromagnetic valve is the emergence of the complexity of the engine launch from the first time, as well as with an incomplete fuel tank. You can fix this breakdown in the service center.