Mazda's latest generation technology SKYACTIV

Mazda has introduced a technology they call "SKYACTIV" future generations. This technology consists of six components of the vehicle, the gasoline engine, diesel engine, automatic and manual transmission, body, and chassis.

The highest and lowest

Of all these technologies, the most proud of and is the first sequence is SKYACTIV-G, which is a direct injection gasoline engine with a compression ratio of 14.0: 1. Mazda also claim it as a gasoline engine in the world with the highest compression. The results of the test machine is mounted on the Mazda Demio, (outside of Japan called the Mazda2)-fuel consumption is 30 km / liter.They also explained, with a high compression ratio, the engine fuel efficiency up to 15 percent, as well as torque. Nevertheless, this machine is still okay to use for day-to-day (usually a high compression engine for racing). The resulting torque is also increased and can be obtained starting from a low to moderate spin. For this, use the Mazda exhaust system 4-2-1 formation. The other part is developed hollow piston and injector number of holes.The latest technology and is no less interesting is the SKYACTIV-D, the diesel engine with a compression ratio of the lowest in the world, 14.0: 1. They say, this machine uses a two-stage turbocharger. With a low compression ratio, the sound is very smooth engine.However, the machine remains responsive from low speed to high.In fact, the resulting torque increases and obtained from the low speed range up to 5200 rpm. In addition, according to Mazda, this engine meets the emission standards Euro6.
Transmission & chassis

For transmission, Mazda says the new technology SKYACTIV-Drive. This new generation automatic transmission is very efficient and able to combine all the advantages of a conventional automatic transmission, CVT and double clutch transmission.For manual transmissions, the updates make the gearshift move so much faster and easier. Transmission due to the smaller size of the repaired structure.Turning to the body, called the Mazda SKYACTIV-BODY. Bodi is eight percent lighter than before, but also more robust. Ability to withstand a collision claimed more steady. It was obtained as per the order made by a straight structure.Speaking of the chassis, there SKYACTIV-Chassis. Development focused on reducing the weight and make the control more stable.Another development is the front strut and multi-link suspension with the weight of the more light, but with increased strength (around 14 percent lighter chassis than the old Mazda).Mazda's first product that will use the latest generation of this technology is SKYACTIV Demio. Product will be marketed in Japan in the early first half of 2011.About the development of this technology, Takashi Yamanouchi, Representative Director, Chairman of the Board, President & CEO of Mazda, said, "Mazda is updating the entire engine, transmission, and platform product line. Mazda also changed the production process, from research and development, up to mass production.We must innovate in all areas of technology. "

Engineering Mazda Rotary Engine

Automotive history records that one of the best inventions in the power generation sector is a rotary engine created by Felix Wankel.This machine is unique, because it serves as a piston and combustion chamber has a rotating motion (rotation), not like other machines commonly move vertically or horizontally. Initially, the rotary engine mounted on a German fighter in the era of the '50s.Only then, the technology is ogled automakers, like GM, Mercedes-Benz, Rolls-Royce, and Mazda.

However, among the manufacturers that, in the hands of Mazda was the biggest jump occurred rotary engine technology. Through the Mazda Cosmo Concept, in the event the Tokyo Motor Show 1963, this machine because even though the public conjured a small capacity, power and torque is large enough. That tradition continues today, in which the rotary engine is the heart of the runway required for a sports car Mazda RX-series.

As rumors of the presence of RX-7 RX-8 new and latest in 2010, Mazda first rolling power source. This machine is a new generation of cardiac pacemaker coded 16X, which is claimed to be more powerful and more efficient, thanks to design changes and embedding of new technologies.

In 2009 it was the veil of mystery Renesis (Rotary Engine darai GENESIS acronym) unveiled the latest start. The first change can be seen from the typical technology pinned Mazda, condition (Direct Injection Spark Ignition). Basically, this injection system will mix the air and fuel in advance, before it is injected into the combustion chamber. The goal is that the torque is maintained at every turn. As a result, since the resulting constant torque, the car will accelerate even faster.

Change continued with the use of two spark plugs per cylinder. In addition, the spacing distance between the spark plug and spark plug into the combustion chamber was also changed. How this is done so that stable combustion. As known, the rotary piston in the engine also serves as the combustion chamber. This condition is likely imperfect combustion occurs when high rotation, because the piston is moving too fast and the spark plugs are not appropriate.Then, to eliminate overlap (bentroknya inflow to the outflow of fuel combustion), the dimensions of the piston and the shell is enlarged.

The issue of the rotary engine is wasteful engine oil can also be overcome by changing the path and increase lubrication. More efficient use of oil as it can reach a wider area than the old way, where the engine oil gathered in a two-point lubrication. Of any changes, certainly increase the capacity of the machine. Expected, the new machine comes in twin rotor configuration, 800 cc x 2 (previously 654 cc x 2), with more fuel-efficient 20% and exhale power up to 270 hp (from the previous 260 hp)

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Note that each of the four stroke is represented by the square and the Top Dead Center (TDC) and Bottom Dead Center (BDC), the maximum and minimum volume of space, located on the corner.rotor rotates at an advanced level and it takes three eccentric shaft rotation axis of 270 degrees between TDC and BDC eccentric, and conversely, that more than 90 degree 180 degree stroke of a conventional piston engine.

Although concentrating on just one study, for the sake of clarity, please note that any space to do its own cycle, 120 degrees out of phase with its neighbors. In this way, contribute to the production of three rooms one power stroke per rotor per rotation of the eccentric shaft, which produces twice the capacity of the engine piston displacement of identical value.

Visualize the workspace volume is not as easy to do it for the parts of a solid machinery. Animation engine, below, will help you see the room as a dynamic volume change that moved in the machine as it works through a cycle. Now, imagine this sequence occurs at the same time, 120 degrees out of phase, the third appearance of the rotor.

IntakeAir / fuel mixture enters the cylinder through the intake manifold; rotor troop movement into the next room.
intake manifoldThe sections in which the air / fuel mixture enters the cylinder.
PowerWhen the compression rate is achieved, the spark plug produces a spark that triggered the air / fuel mixture
RotorTriangular piston turning around an eccentric shaft and transmit a rotary motion directly to the crankshaft
ExhaustIn this section prior to the exhaust manifold, burning gas released by the rotor.
CompressionRotor rotation that reduces the volume of the chamber and compresses the mixture.

Exhaust ManifoldThrough the burning gas pipe removed from the cylinder.