About soot filters of diesel vehicles Bashny.Net

As expected, the number of operating in vehicles equipped with particulate filters, significantly increased compared to their numbers, there are three or four years ago. Nothing strange about that. To meet current environmental requirements, the exhaust gases of diesel engines must be cleaned of soot, so a foreign car diesel "walk-through" years of release without particulate filters in Europe will not find.

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However, the diesel particulate filter in the eyes of the owners of cars, which it is, looks strange and unnecessary option. But really the only task of these filters - reducing the emission of soot into the environment. No technical characteristics of the engine, they do not improve. Yes, and as a filter can improve them if being integrated into the exhaust system, it creates a resistance to the exit of exhaust gases, and to overcome it, you need to spend some power? In addition to cleaning the accumulated soot in the filter, or, in other words, the regeneration requires extra fuel, which increases the amount that the owners have to leave the vaults in the gas station. And that's not all sins "sazhevikov", which, according to the majority of our motorists who do not give in remission.



For example, in the presence of particulate filter tougher demands on fuel quality. According to experts with whom ever talk about the problems of particulate filters is indirectly confirmed by the fact that most car owners are turning to them to the periphery, where there are more chances to fill the car with fuel non-guaranteed quality.



About the quality of the engine oil also increases. Butter oil consumption. One of the products of combustion is ash residues are inorganic additives, from which, together with the base oil comprises a hydrocarbon-based. Ash unlike soot burnout at temperatures above 550 ° C, and based on what procedure filter regeneration, can not burn and continuously accumulates and tightly clog the filter channels. Therefore, the engines with particulate filter should be used special low-ash oil in accordance with the tolerance specified in the instruction manual.



To start the regeneration process requires certain conditions. How to convince the buyer, changed in his life at least a dozen diesel cars that henceforth he occasionally has to spend valuable time arranging his "iron horse" in the countryside jogging 30-100 km, and not have for such trips is no other purpose than to burn out the accumulated soot filter? And how to explain to the owner that, even if the recovery has begun, not the fact that it will be able to successfully complete when the car will go to the non-uniform rate and the more somewhere to stop that for city driving common, if the ambient temperature is not favorable?



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A filter in the meantime continues to accumulate soot and turns into rugged exhaust gas tube.



To begin with increased pressure on the turbocharger turbine, which ultimately reduces the life of the main unit of turbocharging.



The control unit will continue to try to repeat the regeneration and for this after each feeding the main dose of fuel to give the team an additional injection. Not all of the additional fuel is ejected into the exhaust tract, wherein, to burn out, heats the exhaust gases to the temperature required for burning off the soot. Part of the fuel condensed on the cylinder walls and drains into the sump. As a result, lubricating properties worsen motor oil. But that's not the worst. If too frequent repetition of attempts to regenerate the oil level can be increased so that it becomes possible to hammer. To such a scenario seems unlikely, I suggest to look at the photos, which have shared with me on one service, specializing in solving the problems of DPF and FAP.



You can, of course, the filter is forced to burn, but you have to contact the service station and, therefore, to pay. Again, not the fact that the filter is completely clogged with soot, will revive. This means that it must be replaced. Here is where the fun begins. Try on the phone to find out how much the filter for a specific car model at the dealership service, and it is possible, causing confusion at the other end. In the best case, you will be called just an approximate price, citing the fact that they do not remember the last time I actually bought a filter.

But then the problem is solved soot, because experience shows that sooner or later confronts every host machine with a particulate filter?



 - The situation in Belarus with cars, and particulate filters is about the same as in Russia with baseball bats and balls: 30 thousand sold bits there are three balls sold. What did you expect? Scares the cost of the filter - this time. Frighten "neponyatki" serve as a filter after replacing, then out of the bag again have to get a lot of money - that's two.



The point is not so much in fuel - in the end, no one is forcing car owners to refuel the "left" of diesel fuel. Just Diesel "beushka" comes from Europe with mileage of 150-200 thousand kilometers, and with such a run of fuel injection equipment may not work as new. Nozzles worse sprayed fuel, and when there is no qualitative spray - soot will be formed. Or take the valve EGR: he, too, will not work as good as new, and incorrect operation of the EGR valve is reflected in completing the soot filter. Moreover, in case of faulty EGR valve control unit does not give the command for regeneration. And it's not the only problem, the presence of which in the car enables the engine to operate as a filter to burn.



Although the replacement of the filter to a new - the most correct decision, that it served the same as the old, it is necessary to bring the car in perfect technical condition. It may require even more significant money than the cost of the filter itself. We have the same as usual? On the car scraped together - for normal service no money left. And begin the search for detours. They say you can wash the soot. I do not believe. Why is that? Because he tried. At first, there seemed to be a result, but after a few days, customers return to the same problem.



Then knock the filter. However, his condition is monitored by a pressure drop in the inlet and outlet. No difference - the system will include regeneration. Besides, you have already talked about the hammer, I might add, that it is possible and fire. Hence, it is necessary to reprogram the control unit so that it does not "see" the filter. That is no longer the owner will make - it starts to look who it helps. Who is the removal of such a demand, even in the garage, where previously only the nuts cool, it became engaged. Why no? Chinese developers are not sitting idly by, so the firmware does not find much of a problem, and that involved removing filters all and sundry. Another thing is that there was a lot of substandard firmware or firmware wrong edited. This pitfall, and get him the owner of the car or not, depends on to what expert to address it. If the motor is a system Denso, it is possible that reprogramming does not succeed. But then there's another way: put the emulator, the control unit "thinks" that filter all right. It will be more expensive than the software removal, but, again, cheaper than put a new filter.



What happened when many became engaged removal - it dropped the price. Because of this, the chances that the owners will go to the installation of a new filter, and will not remove it, once and for all forget about the problem became even less. In general, we are not accustomed these filters. And do not take root. They do not fit in our terms - all here against them.

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