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.