TwinPower Turbo on BMW motors than they differ in and what their advantages. TWINPOWER TURBO TECHNOLOGY BMW with two turbines
Innovative 3-cylinder Benzi new engine With its exceptional smoothness of work, a 4-cylinder gasoline engine and a repeated winner of the annual International Prize "Engine of the Year" in line gasoline 6-cylinder engine BMW TwinPower Turbo set new standards. These new generation engines have become even more economical, environmentally friendly and powerful than their predecessors. Innovative technologies that are cornerstles of BMW EfficientDynamics strategy combine new Systems Fuel injection, ValveTronic system, including Double-Vanos, as well as innovative turbocharging technologies. The result was the creation of particularly effective power units, which brightly demonstrate bMW Experience In the area of \u200b\u200bMotor Building.
Diesel bMW engines TwinPower Turbo.
BMW EfficientDynamics principles are embodied in Diesel engines BMW Twin Power: a combination of the highest fuel efficiency, increased power and excellent challenges. Cars with diesel engines can serve as samples of efficiency and dynamics. At the same time, 3-cylinder Diesel engines BMW TwinPower Turbo are ideal power-level power units; Innovative 4-cylinder engines BMW TwinPower Turbo and powerful 6-cylinder Diesel engines BMW TwinPower Turbo perform their work with exceptionally small harmful emissions and friction losses. Diesel units of the BMW EfficientDynamics family with lightweight aluminum design are equipped with turbocharger with variable geometry and direct fuel injection system of the last generation CommonRail.
This allows you to arrange intake and outlet channels in such a way that their length is reduced at a larger cross section at the same time. Due to this, the pressure loss on the output of the exhaust gases is significantly reduced. The optimal bandwidth of the flow ensures the special design of the total exhaust manifold, the four pipes of which "serve" two cylinders. The separation of exhaust gases continues until it comes to the turbine wheel. Thus, a constant, free from no countercurrent pressure on both "snails" TWIN SCROLL turbocharger is created. Maximum pressure The supervision of the system is 1.5 bar. The use of double supervision technology Twin Scroll Twin Turbo with a common exhaust manifold of a special design allows you to additionally reveal the potential boosting capabilities. The new M TWINPOWER Turbo engine is characterized by an exceptionally acute response characteristic and extremely high thrust strength achieved. low revolutions and the persisting constant to the high range of revolutions. All this is accompanied by characteristic BMW version M, amazingly powerful and rolled sound of the engine, which emphasizes its revolutions and acute reaction to the addition of "gas". Developing high power The V8 engine has a corresponding cooling system designed individually for each model. It includes in particular indirect cooling of adequate air, which further improves the technical potential of the engine in particularly dynamic motion modes. The new TWINPOWER Turbo engine works with maximum efficiency. In addition to the system direct injection High Precision Injection Fuel Models M and BMW X6 M are equipped with numerous BMW EfficientDynamics technologies: along with brake energy recovery, this is controlled electric fuel pump Depending on the need, a disconnected air conditioner compressor, as well as regulation by volume flow (and therefore, also functioning depending on the needs) hydraulic fluid In the system of suppression of body rolls. Models have average flow Fuel on the EU cycle 13.9 liters per 100 kilometers. Emission CO2 of both models is 325 grams per kilometer. Cars are respecting the American Ecological Standard LEV II and the requirements of Euro 5 in Europe.
On the way from the basic series to the sports supercar M5 brand BMW. Always challenged the laws of automotive logic. Cars that seemed incredibly fast on paper, exceeded all expectations when started in a series and in real acquaintance. Many, if not all BMW engines work, as if by magic, but when the hood opens the next Bavarian masterpiece, it does not turn out to be ancient German runes under it, only on protection power aggregate The inscription "TwinPower Turbo" is banging.
BWM has always preached turbocharging policies and rear drive. Today, do not meet the power unit of the brand, which has no at least one turbocharger, not to mention a series of high-performance diesel engines with three- and four-track installations.
TwinPower plays an important role when it comes to efficient and dynamic gasoline and diesel engines BMW. But what is TwinPower Turbo in reality and what can he offer to the automotive world?
When it comes to gasoline engines, TwinPower Turbo, that is, three components that are used in all modifications, from 3 to 12 cylinders:
Valtronik;
direct fuel injection;
Turbocharddv.
Turbodiesel rails are equipped with the Common Rail injection system.
Valvetronic - electronic variable valve. This technology developed by BMW, which allows you to optimize fuel consumption by adjusting the valve lift. The developers argue that this technology itself is capable of reduced fuel consumption by 10%.
Wolvetronik - Powerful electronic technology. It provides continuous and accurate control over the lifting valve. This means that when the owner of the Bavarians press the gas pedal, the opening control of the valves is launched, instead of the usual throttle valve Opened intake systems.
The system uses a set of rockers controlled by electronic switchgear. Since it is capable of adjusting the valves from fully open to almost a closed state, the engine does not need turnover to increase the load.
Valvetronic was first introduced in 2001 on the 316TI series models and was used mainly for high-rise engines focused on massive sale, such as:
N42 STRAIGHT-4;
N52 Straight-6.
But the system was not used on a dual turbocharger N54. Instead, the Turbocaddv N55 Straight-6, replaced it in 2009 with the same characteristics as the N74 Twin-Turbo V12 of the top 7th series, was equipped with a Valtronik system. After that, the technology was used almost on all BMW cars.
High Precision Injection - direct injection systems with central multilay-mounted injectors. They gradually replaced the technologies used in the 2000s. Jets with a superior and turbocharged used piezo-sector nozzles. However, the new 6-cylinder turboformator BMW N55, launched in production since 2010, installed in models 335i, 535i, x3, x5 and x5, uses a solenoid injection system developed by Bosch. This system was chosen by Bavarians to maintain competitive prices in the North American automotive market.
TWINPOWER TURBO name has confused many car owners. They did not understand what was under the hoods of their BMW. In this regard, a lawsuit was filed with a lawsuit for a large number of people. TwinPower Turbo document was called the "false twin" and it was said that the Bavarians launched an advertising campaign in order to deceive buyers. It's all about the word "double", which is present in the title. Its presence was not a guarantee of equipping engines to two turbocharging.
Initially, TWINPOWER Turbo appeared on a two-ranking single turbocharging (installed on the 5th series Gran Turismo in 2009, and in 2010 there were models E90 335i, 135i, x3 and x5), starting with N55 (six-cylinder turbocharging engine) and N74 (6-liter V12 Aggregate with two turbocharging). They were equipped with models 760i and 750li 2009 release. Twin-speed turbocharging is the main technology for TwinPower Turbo BMW.
The design with two turbines begins with an exhaust manifold separating exhaust gases. They are conducted through different spirals called "scrolls". Turbo has two nozzles of different diameters, they are needed to ensure the rapid response of the power unit. BMW calls a special graduation manifold of its own development of Cylinder-Bank Comprehensive Manifold or CCM.
It should be reminded that modern engines BMW TwinPower is not necessarily equipped with two-stroke turbocharger. But they have an excellent exhaust manifold that catches more exhaust gases For feeding to the turbine, which provides power without lagging.
Three-cylinder revolution: B37 and B38 TwinPower Turbo. Gasoline and diesel
Regular revolutionary by the decision of BMW. Three-cylinder gasoline and diesel engines, which can compete with modifications having a greater number of cylinders. They are built according to a modular system where the same 500-centimeter cylinders are used in conjunction with TwinPower Turbo technology with a capacity of 120-220 horsepower.
It is known that diesel units received the designation B37, and gasoline - B38. The first samples are installed on a hybrid sport car I8 series FWD 1 and MINI. They are also used by RWD 1 and 3 series as starting modifications. model Row engines.
Top 4-cylinder turbo in the world
In 2004, the production of the engine with direct injection developed in conjunction with PSA began Peugeot Citroen. In 2011, the BMW designers have developed a model N13 in which the housing has been changed oil filter - He was installed longitudinally. The engine was installed on the model 114i, 116i and 118i.
Perhaps a promising engine for BMW is now N20. Its working volume is 2.0 liters, there is a turbocharger with four cylinders. The motor also has the inscription "TwinPower Turbo" on the lid. This engine replaced the less powerful Street-6 fellow in the models "20i", "28i", is viable and very effective alternative.
There are 2 modifications N20. The 184 PS version is less powerful and is available for X1, XDrive20i, F30 320i, 520i, base Z4 SDRIVE20i. The top version of this 2.0-liter TWINPOWER engine has a capacity of 245 hp, used in F30 328i, 528i, x1, x3 and z4 models.
Straight-6 TwinPower Turbo: N55
When the TWINPOWER TURBO technology is installed on a 6-cylinder engine, its advantages become apparent. The motor with two Turbines N55 replaced the more expensive N54 unit in 2009. But both modifications are very similar to each other. Comparable access to its own 4-liter V8 BMW, with a lighter block and lower torque, even more tan, which can be found in E92 M3 with a powerful S65 V8.
The power of N55 is 302 hp, the torque is 300 nm (400 nm). It is installed in models 335i, 135i and all modifications of SUV. There is an even more powerful version under the index N55HP, with a capacity of 315 hp, torque of 450 nm. This version includes top models, such as 640i, 740i, and even sports superheavy Hatchback M140i.
The engine debut took place in 2009, it began to be installed on the fifth series GT. Equipped with an advanced version of the 6-cylinder engine, BMW 535i Gran Turismo is able to accelerate up to 100 km / h in just 6.3 seconds. Maximum speed This beast is limited to 250 km / h. As for fuel consumption, the BMW 535i GT consumes 8.9 liters per 100 kilometers. CO2 emission rate - 209 g / km.
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The concept and principle of operation of the turbocharging system called Twin Turbo. Photos new turbocharged engine Biturbo, video and schemes.
What is it and how does it work?
Twin Turbo translated from English means double turbo and in this turbocharger system costs two turbocharger. First, the turbochargers were used to overcome and inertia systems. Now the use and use of these turbocompressors has grown significantly, as it reduces the consumption of fuel. Output power increases and helps to maintain a nominal torque in a wide range of engine speed.
Types of twin turbo and their differences
There are three varieties of the TWIN TURBO system scheme: sequential, parallel, and stepped. These three schemes differ from each other by the location, characteristics and sequence of turbocharger. The electronic control system very accurately sets the operation of turbocompressors. The system includes input sensors, air flow control valves and recycled combustible.
Trading label turbocharging system is Twin Turbo, but there is another name for this system - "Biturbo". Not quite correctly in different information sources, Biturbo perceive as a system with a parallel circuit of the turbocharger operation.
Video: How the turbine works:
1. Parallel Twin Turbo or Biturbo
The parallel system of Twin Turbo works simultaneously and parallel to each other, and includes two identical turbocharger. Parallel work occurs due to even division of the flow of burnt gases between turbocompressors. From each compressor, compressed air comes out and enters the overall intake manifoldand then distributed over the cylinders. Parallel Twin Turbo is used, as a rule, on diesel V-shaped engines. Due to the parallel turbocharging scheme, the efficiency of the system is based on the fact that two small turbines have less inertia than one large turbine. Turbocompressors operate on all engine speeds providing a rapid boost. And each turbine is installed on its outlet manifold.
The first turbocharger is constantly working in the TWIN TURBO serial system, and the second starts working in a certain order of operation of the engine (increased frequency of revolutions, load). The serial turbocharger includes two identical via the characteristics of the turbocharger.
The electronic control system ensures the transition between the modes and adjusts the flow of burnt gases to the second turbochargeor due to the special valve. The correct system is correctly called sequentially - parallel, because with the full opening of the flow control valve of the burnt gases, both turbocompressors are operated in parallel. Compressed air is supplied to the overall intake manifold from two turbocompressors and is distributed over the cylinders.
To achieve the highest possible power output, the Twin Turbo sequence system minimizes the effects of turbo vehicles. Apply, both on diesel engines and gasoline. In 2011, a system with three consecutive turbocharger companies BMW was also called Triple Turbo.
In technical terms, the two-stage turbocharging system is the most perfect. Borgwarner Turbo Systems puts this system to Cummins and BMW diesel engines, and since 2004, the two-stage turbocharger system on some diesel engines from Opel has begun to apply.
In the two-stage turbocharging system, the valve control of the flow of burnt gases and the injected air is used. This system consists of two turbocharger different size. Subsequently installed in the intake and graduation paths.
Bypass valve of burnt gases is closed at low engine speed. Burned gases through a small turbocharger, having a maximum return and minimal inertia pass further through a large turbocharger. And since the pressure of the exhaust gases is not strong, therefore, and the large turbine is practically not rotated. The bypass valve is closed on the inlet and the air comes in series through large and small compressors.
The overall work of turbocompressors begins to be carried out with increasing revolutions. And gradually begins to open the aircraft valve of burnt gases. A large turbine begins to more and intensively unwind, as part of the exhaust gases goes right through it.
A large compressor on the inlet with a certain pressure begins to compress air, but the pressure is not too large and compressed air further enters into a small compressor, where the pressure continues. At the same time, the bypass valve remains closed. Bypass valve of burnt gases opens completely at full load. A small turbine stops, and the big starts to spin up to the maximum frequency, as the burnt gases are almost completely passing through it. Pressure pressure reaches its maximum value on the inlet of a large compressor. At the same time, a small compressor creates an interference for air. And at a certain point, the overlap valve opens and the compressed air directly directly goes to the engine.
Thanks to the system of two-stage turbocharger, the Twin Turbo system instantly achieved the rated torque and is maintained in a wide range of engine speed. This achieves the maximum increase in power. Thus, the system supports the brilliant operation of turbocompressors on all modes of engine operation. The system also explains the known confrontation of diesel engines between the maximum power on high revolutions and high torque on low revs.
Video about twin turbo: how it works
Engines BMW TwinPower Turbo.
Sometimes a bright athlete, and sometimes an elegant companion. Thanks to the powerful BMW TwinPower Turbo engines from the BMW EfficientDynamics BMW 6 series, the Grand Coupe series looks like an impressive in any road situation. A combination of two turbocompressors, the Valvetronic system, the Double-Vanos system and the high-precision fuel injection system ensures excellent dynamics and efficiency.
8-cylinder gasoline engine BMW TwinPower Turbo.
At the heart of the impressive dynamics of the BMW 6 of the Gran Kup series lies the phenomenal power of the BMW 650i engine. It is enough just to touch the accelerator pedal to give the will with an 8-cylinder engine BMW TwinPower Turbo, a developing speed of 100 km / h in just 4.6 than by two turbochargers, Valvetronic and Double-Vanos systems, as well as a high-precision fuel injection system.
The BMW 650i XDrive reaches the same mark for 4.4 s. Along with an impressive capacity of 450 liters. from. And the maximum torque of 650 N · m 8-cylinder gasoline engine BMW TwinPower Turbo affects the modest fuel consumption: equipped with a function of automatic stopping and starting the engine, as well as other BMW EfficientDynamics program technologies, the BMW 650i engine consumes from 8.6 to 8, 8 l / 100 km (9.2-9.4 l / 100 km with XDrive system), and its level of exhaust CO2 is from 199 to 206 g / km (215-219 g / km with XDRIVE). This means that the engines of the BMW 650i and BMW 650i XDrive correspond to the EU6 environmental standard.
An inline 6-cylinder gasoline engine BMW TwinPower Turbo.
Huge power I. smooth work: The potential of the 6-cylinder row gasoline engine BMW TwinPower Turbo has already become a legend. Thanks to its combination with various BMW EfficientDynamics technologies, it was even more reduced by the BMW 640i engine fuel consumption.
Result: consumption of just 7.5-7.8 l / 100 km (7.9-8.2 l / 100 km with XDrive system), exhaust CO2 174-182 g / km (184-192 g / km with XDRIVE system ) and acceleration from 0 to 100 km / h in 5.4 s (5.3 s with XDrive system) at an impressive power of 320 liters. from. and maximum torque 450 N · m.
The BMW TWINPOWER TURBO concept combines revolutionary technologies with innovative fine settings. TWINSCROLL turbocharger and Valvetronic system serves fresh air into the combustion chamber. The high-precision fuel injection system for milliseconds creates a precisely balanced fuel and air mixture, and the Double-Vanos system at this time optimizes the engine power according to turns. Result: Maximum efficiency and power in a wide range of revolutions and consistently clear engine reaction. It was such an engine that you would like to see on the BMW 6 of the Grand Coupe series. This means that the BMW 640i and BMW 640i XDrive engines correspond to the EU6 environmental standard.
An inline 6-cylinder diesel engine BMW TwinPower Turbo.
Specifications The BMW 640D engine says themselves: rapid power extension with low fuel consumption. All this has become possible thanks to the innovative bMW system TwinPower Turbo, combining the COMMON Rail direct injection system and a multistage turbocharger with a variable turbine geometry.
Such a solution can significantly reduce fuel consumption while increasing power. High torque 630 N · m is achieved at 1500 and 2500 rpm. Demonstrating the highest smoothness of work and readiness of reactions, inline 6-cylinder diesel engine BMW TwinPower Turbo develops a power of 230 kW (313 liters with.), Providing an impressive craving. Working in conjunction with other BMW EfficientDynamics technologies, the new engine shows even lower fuel consumption - only 5.7-5.4 l / 100 km (with the XDrive system - 5.6-6.0 l / 100 km), while The volume of exhaust CO2 is 143-152 g / km (with the XDrive system - 149-158 g / km). Acceleration from space up to 100 km / h is only 5.4 s (with the XDRIVE system - only 5.2 s). This means that the BMW 640D and BMW 640D XDrive engines correspond to the EU6 environmental standard.
