When the debate on the prospects of Russian defense industry reach the tank, alarmists, as usual, use a standard set of reasons. First, it claims to "infinite" upgrades "outdated" and T-90 tanks moaning about the "Black Eagle", which, in their view, be sure to go to the series. According to another — all gone.
Yet from time to time to hear claims on engines. Say, a new diesel engine for the Russian-designed tanks have developed more than 20 years, but not developed. And on the basis of this expression is elevated an entire logical construct on … you know, for what.
Only those most alarmists can only be called art lovers, and specifically engaged in the development of the master. Tank engines in our country design masters from Chelyabinsk GSKB "Transdizel." It would be wise to take an interest in the topic of engines coming from representatives of the company, rather than at various amateur professionals.
This issue and have attended in the journal "Arsenal. Military-industrial Review ". In the fifth issue of the magazine for the current year have been brought to the general director "Transdizelya" V. Murzin, according to which the new engine series 2B, designated A-85-3, and already there was the whole series of tests on the resource before running. At the time of the interview was done, 16 new engines.
Not so long ago GSKB "Transdizel" published properties of engine A-85-3 (sometimes referred to as 2A12-3 12CHN15/16 or 12N360). This is a four-stroke diesel slider Liquid cooling. Cylinder 12 is located on the X-shaped pattern and has virtually total 35 l .. There is a gas turbine turbocharger. The mixture occurs by direct injection of fuel. The compression in the cylinders — 11. A-85 3 outputs to 2000 vol. / Min. and develops a peak output of 1500 hp If you use the crossing, the engine can produce up to 2.2 million hp With all of this indicates the possibility of "removal" of forcing, which lowers the power to 1200-1300 hp, but significantly increases the life of the motor.
Let's face it, the properties of a solid. But, the question is why these engines do not put on, for example, the latest version of the T-90 with signs "MS" in the title? The idea is that it should have more to do better tank: The modernization of at least some military equipment at the moment, of course, as previously requested not improve only electrical equipment, and mechanical parts. Naturally, it is possible to do so. If it was not a "but." The engine A-85-3 initially designed as a completely brand-new powerplant for all new tanks, such as the future "Armada". You can equip them and T-90, but this step can not justify itself. Something similar has already been in the middle of the 80s. Then on the experimental tank "Object 187" tried to install a 16-cylinder X-type engine. The attempt failed in a constructive manner, but in a series and did not go. Point is that slider 2B-16 claimed the radiator of enormous size, which affected the size of the entire rear of the vehicle. Maybe the "new thing" in some ways, and that was worth, but economically and technologically it proved unprofitable. The following works have shown that diesel engines are stronger 1600-1650 hp require this size radiator that is even easier and more profitable to put the least fussy engine, even at the cost of power down. And we should not forget that the available engines, for example the B-92S2 tank -90, quite meet the current requirements and have no harsh prirekany. On this occasion, we can recall tests of the T-90S in Malaysia. Then the tanks drove on all types of roads, cross country, the sand and the flooded rice fields on their forced water obstacles up to five feet deep and kept the engines idling for 8 hours. And all this in tropical criteria: temperature 40 ° C and 90-95% humidity. After all these bullying engines were in good condition, and all the problems can be corrected by the crew using transportable kit parts.
Another reason to upgrade the power plant against the "old" tanks. Research in the field of engine-building for armored vehicles have shown that the criteria for actual operation more efficient economically and technically is the engine, which provides specific power in the range of 20-25 ps / m The least amount of "horses" ton of weight machines do not give the tank a suitable mobility and lead to greater expenditure of fuel. The T-90 with its 46 tons combat weight, so Makarov, completely missing tysyachesilnogo engine B-92S2 and power density of about 21-22 hp / ton
So on the already developed in the production of tanks one can and must give up those engines, which already have or, potentially, to put on their modernized versions of "old" engines. A motor A-85-3, as already mentioned, will be installed on the machine are promising.
But you can not get around and fly in the ointment: why work on the engine took two decades? The answer is clear: the first half of this period came in the "merry" 90's with their "love" to the defense industry and measured and classical underfunding. The consequences of those times felt in the motor industry. So, for example, V. Murzin in 2007 in the corporate journal GSKB "Transdizel" noted that Russian engines behind zabugornyh in the area of supply of fuel and air. Specifically, the development of these parts of the engine and allows developers to refine zabugornom properties motors developing 70-80-ies of the last century to the applicable level now. In addition, overseas there is a clear trend in the development of diesel engines resourceful with a relatively small volume. Murzin believes that to catch up with rivals even at air and fuel systems can only be through the creation of individual KB, which will only deal with this "part" of the engine.
But this question, let the coming, but the future, and A-85-3 is ready for serial production.