Chicheng joke

Mazda's rotary engine can be said to be a unique existence in the field of automobile engines in the world. The rotating speed of a rotary engine of the same specification is several orders of magnitude higher than that of a conventional engine. High speed brings great horsepower, so many Mazda cars can get good rankings. Mazda is not the first company to invent the rotary engine, but it is the only company that insists on improving the rotary engine.

So what is a rotary engine? The interior of the traditional engine is mainly composed of several parts, such as cylinder, injector and ignition coil. When the engine is running, it is divided into four strokes. The first stroke: the engine piston goes down, the intake valve opens, and the fuel and air are mixed and injected into the cylinder. The second stroke: the engine piston goes up, the intake valve closes and the pressure in the cylinder rises. The third stroke: the engine piston goes down, the ignition coil is started, the oil-gas mixture is ignited, and the energy provided by the combustion of the oil-gas mixture pushes the piston down. The fourth stroke: the piston goes up, the exhaust valve opens, and the burnt exhaust gas is pushed out of the cylinder. Because only one of the four strokes of the conventional engine does work, the efficiency is relatively low.

But the rotary engine is different and can be regarded as a five-stroke engine. In the first stroke, the intake valve of the engine is not blocked by the rotor, and air and oil enter the engine. Second stroke: When the rotor rotates, air and oil are compressed. The third stroke: air and oil contact the ignition coil and start to be heated. In the fourth stroke, oil and air burn to do work. The fifth stroke: the engine rotor rotates, the exhaust port opens and the exhaust gas is discharged.

The rotary engine has many advantages. First, it has high rotating speed. The rotating speed of rotary engine is much higher than that of conventional engine. Second, the rotary engine is small in size, and the cylinders of conventional engines are either in-line or V-shaped. In any case, this design increases the volume of the engine. So the rotary engine is more suitable for small cars. Thirdly, the vibration and noise of the rotary engine are very small, which is reflected in the three-cylinder engine.

The so-called three-cylinder machine has only three cylinders. If a conventional engine is used, the strength of these three cylinders is very uneven during operation. After all, one down, two up. The moment up and down is uneven. Therefore, the real motion of the three-cylinder engine is obvious, and the rotary engine can avoid this problem well. Therefore, the rotor three-cylinder machine is different from the traditional three-cylinder machine.

But rotating the engine is not all the benefits. First, due to the special structural design of the rotary engine, the fuel consumption of the rotary engine is amazing. After all, the traditional engine has four strokes, while the rotary engine has five strokes. Coupled with the high speed of the rotary engine, the fuel consumption is quite amazing. Second, in a conventional engine, only the piston moves up and down, while in a rotary engine, the rotor keeps rotating. This has caused a problem, the wear and tear of the rotary engine is too serious. In addition, the rotor in the rotary engine needs finishing. Therefore, the efficiency-cost ratio of rotary engine is not very good. Third, there are too few manufacturers of rotary engines. Although many large manufacturers have money, they dare not move closer to rotary engines. At present, only one Mazda is insisting.

Generally speaking, the new breakthrough of Mazda rotary engine is really exciting, and the temptation of high speed is really hard for us fans to resist. The power of 1.0T is comparable to 4.0T, which really makes those of us who pursue high horsepower ecstatic.