The RVS Technology is a totally new and unique method based on diffusion that compensates the wear on friction and sliding surfaces, reduces friction due to a new ferrosilicate surface, and leaves a significant economic effect by simplifying the maintenance of machines and production lines and improving their life time and thus the productivity.
The RVS Technology was invented in Russia. As well as many useful innovations of Russian origin, the RVS Technology™ arises from the military research programmes. In the 1970's some boring works were made in the Murmansk region, reaching the depth of over 12 km, during which an unexpected observation took place: suddenly, unlike the previous experience, there was no need to change the bore but it stayed sharp for an incomprehensibly long time (4 to 6 times longer than earlier). The conclusion made was that there was something or some material in the soil that caused the detected effect. Appropriate people started to study the effect, and they proceeded quite fast at first. Basicly the same minerals were found that are used in the RVS compound manufacturing process even today. The numerous possible solutions of the detected effect were understood quite soon. The problem was coping with the reaction and the stuckness of the formed ferrosilicate on the treated surface.
When the Sovie Union collapsed, the research activities withered away on all the areas that were strategically less important due to the lack of finances or were moved to the private sector. The lattest happened to the primitive form of the RVS Technology, and after several phases the “NPC Ruspromremont” was founded in St. Petersburg, and it has possessed a working package of formulas since mid-90's.
The abbreviation RVS stands for the Russian words “Remontno-Vosstanovitelny Sostav” meaning Repair and Restoring Compound. Due to that, the abbreviation of RRC was used earlier in some English documents, but then a decision was made that the Russian abbreviation would be used world-wide.
The owner of a mechanism treated by the RVS compound gets the following advantages (depending on the type of the treated device):
- reducing the fuel or energy consumption by 3–30 %
- reducing the emissions by 10–40 %
- reduced spare part expenses
- reduced repair expenses
- reduced need of maintenance stops — the used capacity and reliability increase
- increased life time
One has to remember that it is possible that one does not obtain improved figures measurable by different methods, but practically in every case the ferrosilicate layer that protects the original friction surface has been formed.
Thus, the RVS Technology is a very significant innovation both ecologically and economically.
The meaning of this presentation is not to be a thorough scientific description of any concrete technique (RVS treatment). The meaning is to explain the chain of processes that is carried out during every RVS treatment of any type of equipment, the understanding of which lets even a non-specialist use the products based on the RVS Technology in the right way so that he or she obtains a result that is both technically and economically significant in the equipment.
The RVS treatment consists of a group of technological operations, as a final result of which a ferrosilicate layer thick enough to compensate the wear of the equipment is formed on the friction and sliding surfaces of the machine parts. The result of the RVS treatment is obtained if a big enough amount of the RVS compound is carried to the surfaces and left there to react.
RVS compound — repair and restoring compound — is a multi-component fine-dispersed mixture of natural minerals, additives, and catalysts, that has been mixed with a universal lubricant in order to ease its use. The specialty of the compound comprises its ability to form a ferrosilicate layer as a result of a atom exchange reaction in the crystals of the surface layer of the friction and contact areas. New crystals are formed, and their size is larger and their mass is higher, and thus they rise over the original surface of the contact spot compensating wear.
The RVS compound itself is a powder that does not dissolve in oil or other liquids that carry it, but it form suspension (slurry) in them. The amount of the RVS compound needed for an RVS treatment does not change the viscosity of the oil. The oil is used merely as a carrier of the compound and an environment of thermal exchange. The type and quality of the oil are not of major significance.
The RVS compound is not an abrasive material either, but it reminds talk by its abrasive properties. This results in the fact that the RVS compound cannot in any circumstances be the cause of a break-down of a mechanism even in a case of multiple over-dose.
Perhaps the most important information on the RVS compound from the user's point of view is that the RVS compound works only where friction exists, i.e. where energy is freed, the necessary precondition of the exchange reaction.
One can restore practically whatever, if the following two conditions are realized:
- if at least one of the mated parts is manufactured of iron-containing metal, but not of stainless steel
- the equipment is not mechanically broken or worn so badly that it is practically useless
From the RVS Technology point of view any mechanism is regarded as a collection of parts (tooth wheels, bearings, etc.) regardless of its construction. The load and rotation speed of the mechanism, the quality of the steel or cast iron used for its manufacturing, or the type of the used oil are not of major significance. The interest on the construction of the equipment from the RVS Technology™ point of view crystallizes in the question: “How to make the RVS compound reach all the surfaces to be treated?”. One can use the existing lubricating system or disassemble the mechanism partly and carrying the compound externally to the part to be treated.
The microscopic form of the surface, the microrelief, and thus the wear rate of the object are the facts that interest a professional RVS Technology user most. The height difference of the peaks and holes of the microrelief and the contamination rate of the oil and the microrelief are also of importance. It is sometimes needed to find out the reason for their contamination. The needed dosing of the RVS compound depends upon all this.
A professional acquainted with the RVS Technology uses the information of the user on the equipment when he or she makes decisions on how to treat the equipment or if it is possible to treat it at all. If the following can be detected in the mechanism, it is usually not expedient to treat it until the defects are removed:
- the productivity of a piston compressor has decreased to one half of the standard of the manufacturer
- the compression pressure in internal combustion engine cylinders has decreased to one half of the standard of the manufacturer and the oil pressure is so low that the signal lamp burns
- when starting an electric motor coupled with a transmission, the electric system switches the power off
- the pressure of a hydraulic system with the choking valve in its closed-position has decreased to one half of the standard of the manufacturer, i.e. the hydraulic pump is very worn
- a clear human factor can be detected in the condition of the mechanism
As one can guess, the defects above can be found in very few machines in operation
The wear rate of the machine can be determined during the production process operation and without disassembling the machine in the following ways:
- by observation of the effect of one RVS treatment
- by comparing the available measurement results to the standards of the manufacturer
- by observation of the indirect characteristics of the operation of the machine (for instance the noise in operation)
In practice the RVS compound can be carried to the object by three different basic operations:
- by using the lubricant system of the equipment to be treated. There are a lot of such cases, as crank cases of internal combustion engines and compressors, oil tanks of hydraulic systems and metal work instruments
- by partial disassembling and spreading the RVS suspension directly to the surfaces. For instance bearings lubricated for life
- by spreading the RVS compound directly to open objects. For instance chain transmissions, open tooth gears, metal work machines
When using the RVS compound, one has to take into account the fact that it does not dissolve in the liquids (oil, grease etc.) that carry it, but it can result in a slurry. This factor has to be taken into account in the process of determining the optimal amount of the compound for each application as well (lost amount due to slurry).
The amount needed to guarantee the effect of the RVS Technology is one that makes the following happen in all the territory of the friction and sliding surfaces:
- Preliminary preparation of the RVS compound and the surface
- Microrelief cleaning
- Unite work hardening of the RVS particles in the microrelief holes
- Ferrosilicate formation
In practice the need of the RVS compound is determined for most types of equipment in accordance with the oil capacity in them. In consumer products made for automobile use the oil capacity serves as the basis of the choice of the right category, and the consumer need not think of any other dosing instructions than acting according to the instructions in the consumer package.
Although the RVS compound is not an additive to oil, the use of the oil capacity is justified because in all the normal internal combustion engines, transmissions, and compressors the oil capacity is direct dependent on the area of the surfaces to be lubricated, and thus treated by the RVS Technology, and the area dictates the amount of RVS compound needed. In industry there are different types of equipment, the oil tank of which is big and the amount of oil used at the same time small, i.e. the oil circulation speed of which is quite low. The hydraulic systems are a good example of such equipment, and, in order to treat them by the RVS Technology, one needs a professional that is thoroughly acquainted with it.