In the literature and on the Internet, there are a lot of information about the device for the sprayer of fuel and the principles of operation of ultrasound machines. We will try to focus on professional aspects of the process.flushing injectors ultrasound studied thanks to the great experience of work and them.
If when testing anddiagnostics various defects are detected on a special bench, the investigation may be theircleaning In an ultrasonic bath. Also to this procedure Resort in a situation where applicationsChemical compositions did not help to cope with the removal of the tax in full.
Theory and practice of ultrasonic (flushing) cleaning nozzles
Briefly the process of cleaning you can describe as follows.Fuel sprayers themselves are placed in an ultrasonic bath, which is pre-filled with a professional cleaning agent. After that, include the device.
Ultrasound fluctuations are created in liquid high and low pressure areas, which alternate according to the frequency. Liquid molecules When a change in hydrostatic equilibrium under the influence of ultrasound is broken, with many smallest gas bubbles, which up to this point were in a dissolved state. Then, with an increase in pressure in the liquid, the bubbles are collapsed, which were formed earlier. As a result of these consecutive reactions, shock waves are formed with simultaneous pressure, reaching up to several hundred atmospheres that contribute to detachment. different pollutionWith both external and inner surface.
One of the nuances of the processit is that the inner surface of the sprayer is cleaned only in the active mode of operation, that is, being in the cleansing fluid with a hole for spraying the fuel.
Process cleaning nozzles ultrasound You can split the following steps:
The last injector technology has turned this area upside down in the last few years! These high-tech nozzles new technology Large linearity in the entire pulse range and have a fantastic short repeatability along the pulse length, which leads to the presence of a type of idle and excellent characteristics in stock throttle valve From these large nozzles.
This injector signal "Peak and Hold" typically uses a high initial current to open the injector and which reduces to lower current to keep the injector open until the end of the pulse. Since this method placed less current into the coil, the coil was heated less and therefore was more reliable. Since "Hold" or the lower current of the signal created a weaker magnetic field, the injector will also close faster.
- Injectors are in suspended state by fixing on special holders and lowered in an ultrasound bath;
- Start the process of ultrasonic cleaning;
- Having finished the process of ultrasonic cleaning, we perform the "backwash" fuel sprayers. To do this, we remove the filters at the inlet in advance and install in the stand using special adapters. Test solution flushes the remaining contamination in the opposite direction.
Advantages and risks of ultrasonic cleaning nozzles
To positive consequencescleaning nozzles ultrasound You can attribute:- reduced fuel consumption;
- acceleration of acceleration of the car;
- improved engine performance.
1. In the sprayers, which are installed on Renault and Chrysler cars, filters are made of material that is destroyed under the action of ultrasonic waves. As a result, the tightness of the plunger and the sprayer nozzle is disturbed, which leads to the engine launch difficult.
Based on his experience, we have developed technology that allows you to clean, including such problem nozzles.
2. Sprayers direct injection DES, FSI, GDI systems. They use a porous ceramic substrate, which is destroyed under the action of ultrasonic oscillations. For them, we apply the cleaning method in passive (non-working) state with the removal of contaminants from the outer surface.
Our professional secrets of ultrasound injectors cleaning
1. It is important to take into account the fact thatwashing nozzles ultrasound Not a magical medicine from all the troubles in the engine of your car. The true problem can be in improper operation of the sensors, the ignition system, and so on. Therefore, beforeprocedure We recommend that you pre-test them, or the diagnosis of the fuel system operation, and then make a decision on the need to clean.2. Testing I. Cleaning nozzles ultrasound We spend on special professional equipment - LANTECH LUC-304. This machine is designed for testing and washing of gasoline nozzles of electronic and mechanical fuel injection. Its use guarantees high quality Cleaning and accuracy of diagnostic results This device fully simulates the operation of the car engine in various modes, which is necessary when comprehensivediagnostics injectors (description by ) .
3. Ultrasound injector cleaning helps to cleanse deposits are usually caused by using embossed fuelBut it is not able to restore the killed nozzles to the state of new.
The fact is that the plunger of the polluted nozzle in the process of operation increases the cross section of the nozzle, breaking it in the process of work.
After removing the coke and dirt due to the cleaning, the nozzle diameter increases, which leads to the launch of the engine "on the hot", although the dynamics and acceleration improves. Therefore, oftencleaning nozzles ultrasound Performs the role of the indicator of their worn.
4. We use only high-quality professional testing fluid andultrasonic washing injectors recommended by the manufacturer of the device.
Advantages of the LANTECH LUC-304 apparatus for cleaning the injectors ultrasound and their checks
This unit is designed to test and flushing gasoline sprayers using ultrasound cavitation. Its use provides us with a high standard ultrasonic cleaning and the highest accuracy of the results of their subsequent check. This contributes to its principle work - complete Imitation of the operation of a car motor in various conditions, since control over the time of fuel supply in a closed circuit is provided by the operation of microprocessors. The device is equipped with an ultrasonic bathroom (see photo). Using the LANTECH installation allows you to solve the following tasks:
- diagnose fuel sprayers for gasoline leaks at elevated pressure;
- reverse cleaning for leaching lacquer sediments and coke;
- carrying injectors with ultrasound waves;
- imitate the work of the motor in different modes and conditions;
- Receive data for checking gasoline volume, which is served by different injectors.
Cost fuel injectors Currently, high enough - from 3000 and up to 30000 rubles. Depending on the class and brand of the car. You can be much cheaper to try to extend the life of the injector in our workshop. Ultrasound nozzles cleaning price This is 300 rubles. / PC. !!! As a result, you can save not one thousand rubles.
High impedance injectors are run using a low signal. dC and are saved by the same constant current for the entire cycle. As a rule, you can use almost any fuel in modern nozzles. While the injector will work normally with any fuel, you need to take some precautions for certain types of fuel.
This fuel is now usually available for use on road vehicles in stock and therefore "approved" to use unchanged in modern fuel systems. Nevertheless, in the world of performance, we need to take some additional precautions, as we make a few things differently than the usual football mother.
In more detail with prices for our workshop, our workshop can be found. .
Cleaning Injectors Ultrasound: Video
The main symptoms of pollution of the injector fuel injectors:
This means that if the fuel costs some time, it will pull the water from the air and potentially run the corrosion parts that are not protected. In any injector, some internal parts should be made of ferrous metals, since the electromagnet will not be able to open the valve if it is color. These black parts can corrode if they are not protected. Under normal conditions, a sufficient amount of fuel comes through the system to displace water and allow 15% gasoline to perform their work both lubrication and protection internal details from corrosion.
- power loss
- increased fuel consumption
- coupling or "failures" when overclocking a car
- on the idling unstable work, Engine Troy
We also do adaptation of throttle valve, cleaning throttle, replacement of throttle, throttle adjustment, check gasoline nozzles, cleaning nozzles ultrasound, replacement nozzles injector cleaning cost.
Norms of the prevention of the injector
If a vehicle It starts only periodically or the nozzles are removed from the sealed fuel system, the injector parts can be exposed to the conditions for which they are not intended, and to force the injector to block or change the flow.
Secondly, ultrasonic flushing nozzles only cleans deposits on the nozzles
In most cases, we can clean these nozzles and return them to a proper working condition, but in some cases the effects can be terminal. As a result, these solids interact with gas and other suspended chemicals in suction with the formation of solid deposits. These sediments are manifested in the "black mucus" on the nozzle and in the inlet path. Over time, this accumulation can lead to a change in the form of spraying nozzles and, ultimately, blocks part of the stream from the injector.
Injectors pollution mainly occur for two reasons. The first and most common is the use of low-quality fuel. The second reason is a debt or complete neglect of the prophylactic cleaning of the fuel system and clean the nozzles. All this can lead to non-convertible notch, the destruction of the "saddle" and ultimately the incorrect formation of a jet or the injection cloud and, as a result, will negatively affect the combustion process of fuel.
Although these sediments can be removed by our cleaning system, you want to be aware of this problem to make sure that you do not damage your engine when the injector stream decreases. Run gasoline tank every 2-3 months to dissolve accumulation. - protective fuel cleaners for dissolving and removing sediments. Clean the fuel tip of the injectors using the brake cleaner after determining accumulation during visual inspection. It works when extension only external and affects only spray sample.
By the time the accumulation is internal, and the flow will be blocked by extension on the valve seat, this type of cleaning will no longer be effective. As an additional step to item above, you can try to pulsate the injector, forcing the brake vacuum cleaner through an open injector in the normal direction of the fuel flow. Try it at your own risk! We always offer professional cleaning, but sometimes we understand that it is impossible.
We produce nozzles cleaning in two ways:
- Cleaning without removal of nozzles.
- Cleaning with the removal of nozzles.
In this case, not only the nozzles themselves are cleaned, but also the fuel ramp of the injection system, as well as partially valves and the combustion chamber.
Such a cleaning of nozzles is carried out using a special flushing agent, for example famous manufacturer Auto chemicals "Winn's", on an automated stand.
Initially, the injector will work normally, but without lubrication everything mechanical systems With metal moving parts will wear out, which will lead to irreversible damage to the injectors and other parts of the fuel system. Sometimes you can check if your injector works. Instead, it is best to use a low-voltage source, for example, a 9 V battery, which activates your injector, but without the risk of damage from prolonged current.
Flushing and cleaning injector ultrasound
Of course, this does not mean that everything is perfect, since only the stream test and the impulse will determine whether the injectors work correctly, but you, at least, can say that the injector valve is not stuck in an open or closed state, which can help you eliminate At least some problems with deduction. Another simple test you can do at home is to check the resistance on electrical contacts nozzles. It is extremely rare that several injectors fail, so what you are looking for is one injector that does not correspond to the resistance of others.
The effectiveness of the procedure is average. Has a drawback - it is possible a negative impact on catalytic neutralizer Exhaust gases, after the procedure it is necessary to replace the spark plugs and it does not allow to diagnose the operation of the nozzles visually.
price washing injector
The duration of the procedure is about 1.5 hours.
The main stages of the injection of the injector
If the resistance is much higher or lower than other injectors, there is a problem with the coil of the corresponding injector, and it will be necessary to replace it. Injectors that show this failure will usually not pulsate during testing, or if they are pulsed, they will not flow almost any fuel.
The best way to try to clean all the former fuel and any potential reserves from your nozzles are to use a naked brake vacuum cleaner, 9 volts battery for pulse nozzle and about 20 pounds per square inch compressed airTo click on the brake vacuum cleaner through the injector. Great idea - spray the contents of the injector into a clean paper towel so that you can see that is inside the injector. If necessary, repeat the cleaning process several times.
Cost of work:
ICE to 2,0l - 1900 rubles.
DVS from 2.0 liters to 3.0 liters - 2500 rub.
DVS from 3.0 liters - 3500 rub.
Liquid for cleaning 1 liters - 850r
The nozzles with the fuel ramp of the DVS injection system are removed. With the help of our special diagnostic equipment It is possible to identify the degree of contamination of each individual nozzle and their subsequent defectation. After the diagnosis, nozzles, if necessary, are placed in an ultrasonic bath, where in a special chemical solution, the process of cleaning from deposits occurs. Next, on the stand there is a repeated analysis of the results of cleaning. The cost of washing the nozzles. Injector cleaning Price.
Washing nozzles may be required.
The basic fuel pressure is commonly referred to as the pressure on which the fuel pressure regulator sets the initial and idle fuel pressure into a specific fuel system. Speed \u200b\u200bof lifting fuel pressure regulators and basic pressure. Although many cars can have adjustable fuel pressure regulators that increase the fuel pressure in the fuel ramp when the pressure in the collector increases due to increased applications, the base pressure is always the pressure on which the injector works, since the added pressure due to enhancement on both sides of the injector .
We always offer the client to attend the process of diagnosing and analyzing the operation of nozzles, because It is possible to visually see the operation of nozzles in various modes that imitate the fuel injection process into the engine combustion chamber. Flushing injector in Moscow.
The effectiveness of such diagnostics and cleaning is high and in some cases it is required to replace the faulty nozzle.
Chemical washing of the injector
Most of our current line of high-impedance nozzles will produce a repeated pulse at least 115 pounds per square inch, while low impedance injectors will give a repeated pulse at least 80 pounds per square inches.
When considering the maximum working pressure of the injector, it is always important to remember that the additional pressure of the fuel added to the fuel ramp is shifted or "canceled" increased pressure Air in the collector or head. Thus, the maximum operating pressure For the injector will always be a basic pressure, and not the maximum fuel pressure indicator, which you can see on the fuel pressure sensor during peak loads.
The duration of the procedure is about 2 hours.
Cost of work:
DVS 4x cylinder - from 2500 rubles.
DVS V6 cylinder - from 5000 rubles
Check and ultrasonic cleaning of the filmed gasoline nozzles - 400r per 1pc.
Our address: Garden PR-D, 8C1. Nearest metro stations: Timiryazevskaya, Dmitrovskaya, Maryina Grove, Butyrskaya, VDNH, Teletozer, Otradny, Vladykino, Botanical Garden, Altufyevo, Bibirevo.
Therefore, you work within the injector. It is much more likely that the fuel pump will not be able to provide the required fuel consumption during peak load than the injection failure, since you exceeded the maximum operating pressure of the injector. This is due to the fact that the injector works only with "basic pressure", while the pumps should be supplied with the base plus momentum. If you ever watched a delivery schedule fuel pumpYou will see how the stream sharply decreases when the required feed pressure increases.
In this situation, you will have to consider adding additional pumps, instead you can simply go to larger nozzles. However, if you or your tuner have chosen custom pressure to start, you must always make sure that you know or calculated which injector flow rate is necessary for the safe start of your engine.
Opening hours of auto repair "Autonavtika" - 9:00-21:00
