Currently, automotive engines use reciprocating engines.
A reciprocating engine, also called a piston engine, is an engine that uses one or more pistons to convert pressure into rotational kinetic energy. It is also a machine that converts the kinetic energy of a piston into other mechanical energy, mainly using the heat generated by the combustion of the fuel through the liquid ( Such as water) or the expansion of gas, thereby pushing the piston, the machine that converts thermal energy into kinetic energy.
It is not a rotor engine. It is an in-cylinder direct injection motor developed by Chuangchi Blue Sky. Mazda is only a rotary engine with rx-8.
The engine we are talking about today is the rotor engine, which is only used by Mazda, and this engine is not used in all Mazda models. Only the previous RX-7 and RX-8 are installed! However, the RX-7 is biased towards the track, and the RX-8 is biased towards the street, which means that the RX-7 has higher performance than the RX-8! Although both cars have been discontinued today, at the Tokyo Motor Show in October 2015, Mazda released a concept car. Yes, you have no guess, it is equipped with a rotor engine.
In the world's questioning of the rotor engine, Mazda insists on himself, no matter what others say, don't abandon, don't give up. This persistent attitude and spirit gave birth to the RX-7. She made Mazda go to a glory and Mazda did it.
A rotary engine is also known as a piston rotary engine. We know the ordinary cylinder engine, the piston makes reciprocating motion in the cylinder; and the rotor engine, as the name implies, is the piston rotating and reciprocating in the cylinder.
When the piston makes planetary motion in the cylinder, the volume of the working chamber changes periodically with the rotation of the piston, thereby completing the four "life events" of intake-compression-doping-exhaustion-exhaust, and each time the piston rotates, one is completed. Loop, so reciprocating.
The rotor engine is also called the Wankel rotor engine, so it can be seen that its inventor is Wankel. The difference between a rotary engine and a normal engine is that it rotates in a similar elliptical space by a triangular "rotor" to drive the middle shaft, which is different from the piston engine's up and down movement. Because it is a circular motion directly, instead of turning a linear motion into a piston motion like a piston engine, it is more efficient. Like the Mazda RX7 dual-rotor engine, the displacement of 1.3 plus the original turbine can already reach 255 horsepower.
However, due to the cyclic rotation of the rotor, the sealing property becomes a big problem, which is one of the reasons for the initial high fuel consumption. Therefore, many manufacturers abandoned this technology. Later, Mazda bought this technology. After research and development, it effectively solved the problem of sealing. The RX7 and RX8 and the landlord said that the Le Mans 787B is very good. example. Due to Mazda’s buyout, no other production car has adopted this technology. However, many cars used this kind of engine before. The most famous one is Mercedes-Benz C111 series, of which C111-2 is mass-produced. C111-3 is used for racing. It has reached the top speed of 461KM/H, quite amazing.
Its advantages are simple structure, small size, high power, and stable operation at high speed. Therefore, many years ago, it was once called black technology, and many automobile factories competed to develop rotary engines. But now, it is basically a dog band, and currently only the Mazda RX-8 is still in use.
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