What is TSI engine? Full review. TSI engines: What is this device? Works tsi

Often, car enthusiasts before buying a new car volkswagen brands Or his subsidiary Skoda is in a certain misunderstanding when the engine-TSI is unusual abbreviation. There is a misconception among motorists that this designation determines the availability diesel engine, but it is absolutely not true.

Motor definition TSI

The TSI engine is a device that carries out its operation on gasoline, and has equipment in the form of a double turbocharging with mechanical compressors, with a direct "versatile" fuel fluid injection system. The device of the unit of this type is characterized by a more complex technical structure, but also indicators of reliability, durability, power on high level. It is also considered a very economical fuel consumption with a load.


The TSI type unit has a somewhat modified form of a device that consists of the following parts and nodes:

1. Turbocharger and compressor mechanical type. In TSI, they are located in different sides of the block. The presence of a mechanical compressor makes it possible to avoid the common problem of turbocharged engines, which is called "turbo pit". It implies a drop in turnover and engine power with revolutions below 3000. To avoid this effect, the driver must necessarily maintain this level by applying the constant "Podagazak". Additional installation of the compressor provides stable power at low engine revolutions.
2. Cooling system. In the classical understanding of the turbocharged engine, cooling is purely due to air flow. In TSI there is a system of nozzles that work with an intercooler. This improvement makes it possible to force the air into the cylinders, and thereby increase the pressure force. This makes it possible to obtain the declared amount of torque on low engine speeds.
3. Injection system fuel mixes. The supply of gasoline occurs directly to the cylinders, plus the mixture goes layerly mixed with air, which increases the combustion efficiency.
4. Reduced block weight. To increase quality indicators and increasing the capacity, it was decided to struggle to reduce the weight of the block, which eventually succeeded. Replacing individual nodes made it possible to reduce weight by 14 kg.
5. Price. The cost of the TSI engine does not increase the price of the car. On average, such an engine will cost the owner by $ 1000 more than the classic option.

Positive Motor Quality TSI

This type of engine has already managed to conquer the mass of engineering awards and become a breakthrough in the car building. Many car owners have already appreciated the principle of operation and qualitative indicators of such an aggregate, which made it possible to determine the following advantages of the design:

1. Hybrid of economical fuel use and achieving high power indicators.
2. Environmental protection from a large amount of CO2 emissions.
3. Increased speed interval makes it possible to reduce the amount of fuel required. The bottom line is that the crankshaft on the car rotates in the indicators of 1500-1750 revolutions in 1 minute and this directly affects the flow rate.
4. Changed nozzles that have high pressure supply and 6 injection points. Automatically system controls the pressure and frequency of injection, which also saves the volume of fuel.
5. Lack of turboyama.
6. The improvement of the cooling system optimizes combustion strength.

Negative qualities TSI

In addition to the huge number of advantages from TSI engines, there are several differences that can negatively affect the overall rating:

• The high price of the car with such an engine (by 1-3 thousand dollars is higher than a car with a classic gasoline unit).
• Expensive maintenance and repair.
• Replacing the turbine after 150 thousand km of run.
• Student replacement motor oil.

Thus, the engine TSI is a very successful development that is different high power, ecology and economical fuel consumption. Timely passage will give the opportunity to operate a car without trouble in the form of breakdowns.

Surely everyone who wondered about the purchase of German car Skoda. Or Volkswagen, thoughtfully considered the Abbreviation TSI engine type, reflecting on what the feature of this power unit is. There are still many misconceptions on this issue on the expanses of Russia. Some believe that this type Engine works on diesel fuelSince with a smaller specific amount, it gives a large power value in comparison, for example, with a simple turbocharged engine. But in reality everything is different. Engine TSI, this is not a diesel.

How does the TSI and FSI engine work?

FSI.

In order to better understand how the TSI engine works, let's consider the work of its "fellow" FSI motor. The FSI abbreviation (Fuel Stratified Injection) designate engines developed by German specialists with the so-called "layered" fuel injection. In this engine, it is designed similarly to diesel aggregates:

the fuel pump is pumping gasoline under high pressure Fuel ramp total for all cylinders. Controlled by the system of electromagnetic valves of fuel injection, is carried out with the help of nozzles, by the way, if you want to rinse the nozzles then you here. The opening of each of the injectors occurs after the command is submitted by the central control unit. The phase of work depends on both turns and engine load.

Video about Engine FSI

Advantages of the FSI engine.

The advantage of such an engine is that due to strict dosing of fuel injection into the combustion chamber, saving is achieved up to 15%, in comparison with gasoline engines equipped with a classic injection system. In addition, more uniform traction is provided at low and medium rates due to changes in the camshaft phases.

TSI.

Unlike the FSI engine, TSI motor is a gasoline power unit with a double turbocharging system. TSI Abbreviation (Turbo Stratified Injection) Here you can translate as an engine with layer-by-layer fuel injection and turbocharging.

Such an engine inherited from the FSI engine fuel injection system and received an additional mechanical compression system. Naturally, the design of such an engine is much more complicated. However, this deficiency is completely compensated by its greater reliability, power and economy.

Video about TSI engine

The TSI engine layout is characterized by the fact that the turbocharger and mechanical compression system are separated along different directions of the engine. Traditional turbocharged engine gets additional power using energy exhaust gaseswhich spinning the turbine wheel, through the drive system, create compression and injection of air. In comparison with classic gasoline engineSuch a system is more efficient, but the effectiveness of the TSI engine with layer-by-layer injection and the turbocharging system is much more efficient.

The advantages of the TSI engine.

A large disadvantage of a simple turbocharged engine can be considered that it is weakly effective at small and idling. In contrast, the TSI motor has a mechanical compressor running on low revs and turbocharger, which ensures the increase in power at high revs. Thus, additional compression and injection of air into the engine system occurs almost throughout the range of operating speed. It is this factor that contributes to a multiple power gain with a reduced fuel consumption, which is provided by a system of dosage, layered injection and a double injection system.

All of the above factors lead to the fact that the TSI engine developed by the German "Assami" Volkswagen achieves impressive power values. So, in comparison with the classic turbocharged engine of the same manufacturer, with a nominal volume of the engine in 1.2 liters, the TSI engine shows the result on average by 12 hp Better (90 hp for engine turbocharged motor counter 102 hp for engine TSI). In addition, the double compression system leads to the absence of a failure of power and excellent thrust, both at low and high engine speeds.

Naturally, the complexity of the engine design could not not affect its price. But slightly appreciation is quite paying up with a reduced level of consumption and reinforced power.