Sunday, November 27, 2011

Direct injection in Russia. Does it make sense?

Automobiles with direct injection appeared in our country for quite some time. A pioneer in this matter was the concern Mitsubishi. Officially Carisma model with an engine 4G93, equipped with direct injection has been delivered to Russia in 2000 should be noted that fans of the scientific and technological advances could significantly earlier to evaluate the car. In Europe, it was sold in May 1995, respectively, later you can see the most impatient shoppers, rolled into Carisma GDI with an inscription on the trunk lid. Previously, all the European market engines with direct fuel injection was brought concern Mitsubishi. Although engine for Europe has been adapted to other fuel standards. The fact that the sulfur content in gasoline, even in prosperous Europe compared with Japan is high enough. In Russia, this very badly, that for high-precision direct injection fuel system is very destructive. It is curious that our gasoline under any circumstances can not stomach a similar product from Toyota. I remember, at one time had the opportunity to order a lot of plunger injection pump on the most popular at the time of the motor group - 3SFSE, which replaced the simple 3SFE, equipped with a standard multiple injection. Toyota still does not deliver its new developments in the fuel supply equipment to foreign markets, using them only inside the country. The explanation is simple - fuel of inadequate quality. But people still had introduced a number of cars with engines equipped with direct injection, D4. And then it appeared on our gasoline these sores, which the Japanese were not even aware. In particular, if worn hydraulic pair in D4, all that does not fall into the combustion chamber is discharged into the sump, diluting the oil. Naturally, the engine oil diluted with gasoline, with its functions can not cope, ensuring rapid and intense wear of parts and engine parts. Machines with a direct "toyotovskogo" injection was brought very much. From the Far East all clear, but a decent amount and came to Moscow, where the hosts immediately started having problems. It's funny that sets of gaskets and seals have 3SFE and 3SFSE are very similar, but not all, even the cylinder head gaskets are different. In general, uniform, some parts, but not all. Accordingly, the order only in Japan that long and expensive. With direct injection of the company's Nissan Neo Di personally acquainted failed because Moscow relation to vehicles for the domestic market production Nissan still somewhat untrusted. Unification with levorulnymi analogues is very weak, if any counterparts exist at all, so not everyone likes the book, even some of the filters from Japan. Concern Mitsubishi, it seems, the only one of the rising sun, formally proposed GDI to foreign markets. In this context of "Japanese", equipped with direct-injection, most of them. Interestingly, the 4G93 with GDI was originally the power units of larger and heavy models - Galant and Legnum. Power in comparison with European counterparts engine was also higher - from 140 to 170 hp. with. Agree, this is more than 125 liters. with. available to the European Carisma. But still, a very successful regiment of torque, efficiency, power won the hearts of Russians. Incidentally, the system was GDI and most reliable design of direct-injection compared to the competition from the Land of the Rising Sun. High pressure fuel pump was adapted to European standards, forcing reduced the power unit as a whole, a positive impact on the resource. Cars with direct injection, which came from the domestic market, over-laden and difficult to maintain, petrol prefer the 98 th. Fuel injection equipment for Europe has undergone significant changes, fuel pump the other hand, many original details. Of course, modern high-tech car is still frightened refuel and service in the Russian hinterland. But in the big cities GDI is working quite well, engines rolls of 200 000 km, not straining the repairs. Worth, of course, remember that you can use only proven, large refueling. The owner, saving the ruble per liter, can then lay out for the repair of an incommensurate amount. The problem is not only in the fuel system. Iridium spark used to GDI, differ a great life, but just like any other, not like gasoline artificially high octane. Omissions in the cylinders, reducing cost, problems with the catalyst due to unburnt fuel - one pulls the other. It is clear that wash carburetor VAZ-21083 is much easier and cheaper than repair the fuel system and replace the catalyst for Mitsubishi Pajero in the back V75W. But the extra precision assembly in a fuel supply system, working in the Russian gasoline, it seems, has ceased to please even the optimists out of concern Mitsubishi. Carisma model was removed from production, together with the 4G93 GDI, Pajero got a 6G75 engine with distributed injection instead of directly on the motor 6G74 with previous generation machines. Excellent performance, the highest efficiency among gasoline counterparts distinguish motors with direct injection of fuel into the cylinders. It seems that we again sum old GOST standards and acting ever since the king of peas. However, direct injection, in the Japanese sense of the word, and Europe is not far away from us. Although, as the saying goes, the system system strife, could not bring the outside - do it yourself. Too tempting to cut costs while improving performance characteristics. Using direct injection with turbocharging in general makes it unique characteristics of the motor as torque and flow, so often and in power. And now the company Bosch, known not only to motorists all over the world, but even housewives, creates a new system called Di-Motronic, which is willing to use almost all European auto giants. There is still a very serious name in the market players in high technology - Concern VAG. Recently, its engines are increasingly becoming the laureate of "motor of the Year, and several times in a row. It's not only the use of technology FSI - Fuel Stratified Injection (so they said), but also in a double pressurization - the latest development of the concern. European grands in the automotive industry agree on one thing - to save fuel in the presence of such a fuel injection system of the order of 15%. Indicators of a somewhat more modest than those who claimed the Japanese manufacturers. However, the system of direct injection with Bosch Japanese somewhat easier, which reduces performance, but increases rabotosposobnost.Chestno speaking, constantly find myself thinking that the technology even in developed European countries, is hopelessly behind the Japanese. All the latest technical developments, first appearing there in the cars for the domestic market, and only 5-10 years are available to other consumers. In general, while fuel standards have not been reviewed with an eye to be refilled even cars equipped with the European version of direct injection, whether Mitsubishi's GDI and Di-Motronic from Bosch.

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