Is Mazda s engine a rotor or not, and how is it different from a normal engine?

Yes, Mazda's only imported RX-8 sports car is a rotary engine, and this year's ** is more beautiful, especially the red color.

Mazda only has a rotary engine on the RX-8!

Other models are still ordinary engines.

In fact, the rotary engine is not a new technology, it appeared very early. It has also been used in small aircraft. But poor service life and fuel efficiency are its Achilles' heel.

Mazda. Most of them are still piston engines! But it's best known for its rotary engines, the most famous of which are the RX7 and the new RX8!

At the 1982 Le Mans Rally, the RX7 left all the piston-powered cars in the race a few streets away! Later, for the sake of the face of most European auto capitalists, the FIA stipulated that rotary engines were no longer allowed to participate in rallying! But this slap in the face will forever be recorded in the annals of history!

Mazda's predecessor was Toyo Motor Co., Ltd. of Japan.

They bought from Germany in the 50s of the last century the patent of the inventor of the first sub-engine of the Wankel engine, the German Wankel), and then Toyo Motor Company President Matsuda [the Roman alphabet of Japanese.

marked as: matsuda, the Chinese pronunciation is "Mazda"] under the leadership, tens of millions of dollars were invested in the engineering research and development of rotary engines (materials, seals, stability, economy), and finally launched the famous rotary engine that can be used in actual vehicles! It was assembled on a private car produced by Toyo Motor Company at the time!

Technically speaking, the advantages of the rotary engine are as famous as the lack of quiet burial points! The advantages are high power density (much more power per unit weight and volume than piston engines) and high torque at quiet, high revs, so it can provide the equivalent of a large turbocharger with a smaller displacement engine.

Drive the horsepower provided by a gasoline engine or a large displacement diesel engine! Under the same horsepower conditions, because of its light weight and small size, it can have the sports characteristics of fast start and fast speed, so it is suitable for the sports version of the private car or racing engine! The disadvantage is that because the rotor engine is always rotating at high speed, the rotor and stator are directly prone to wear and tear, and pressure leakage, resulting in the problem of declining thermal efficiency, in addition, because the combustion process of the rotary engine is also quasi-four-stroke combustion, but because of its congenital defects in mechanical structure, the combustion efficiency is not high, similar to the two-stroke engine, the combustion is not sufficient, so it is more fuel-consuming and the emission standard exceeds the standard!

Third, because the rotor stator of the rotary engine has a precise clearance, the technicality of materials, assembly and after-sales maintenance is more demanding! Therefore, the quality requirements for workers are higher! However, with the progress of engine material science, new energy and hybrid fuel power technology, the defects of rotary engines have been gradually made up, and rotary engines, with their traditional advantages, are now more and more used in vehicles including drones, motorboats and mobile power sources!

In particular, rotary engines using heavy fuel oil have been widely used in the Army, Navy, Air and Marine Corps of the United States.

and other four major arms of the armed forces tactical UAV, marching backpack power generation equipment, fire control system power of 155mm howitzers that can be flown and hoisted, navigation lighthouses on unattended islands and reefs, radars and power sources for aircraft pods! Therefore, the rotary engine is an emerging power technology that combines traditional and future high technology!

It's the Mazda RX-8. At present, only Mazda is still insisting on developing a twin-rotor engine, but due to technical reasons and the shortcomings of the rotary engine, Mazda only has a twin-rotor engine on the production RX-8. However, current studies have shown that rotary engines have excellent performance in hydrogen power, and many major car manufacturers have also shown interest in this, so the potential of rotary engines is still very large.

Extended information: In 1964, Citroen also used rotary engines, but due to various social and technical reasons at that time, manufacturers equipped with rotary engines withdrew one after another. Only Mazda started using rotary engines in 1967 and has stuck to it, for which Mazda paid a considerable price.

In the late 70s, the RX-7 was introduced, and it entered the American market, and now the RX-8 sports car is introduced, so until now, the rotary engine car was only equipped with Mazda.

Mazda RX-8

Rotary engine.

Mazda RX7, Mazda RX8, etc.

While the center of the triangular rotor revolves around the center of the output shaft, the triangular rotor itself rotates around its center. When the triangle rotor rotates, the inner ring gear centered on the center of the triangle rotor meshes with the gear centered on the center of the output shaft, the gear is fixed on the cylinder block and does not rotate, and the ratio of the number of teeth of the inner ring gear and the gear is 3:2, and the above-mentioned motion relationship makes the motion trajectory of the vertex of the triangle rotor (i.e., the shape of the cylinder wall) resemble a figure 8.

Compared to reciprocating engines, rotary engines eliminate useless linear motion, so that rotary engines of the same power are smaller in size, lighter in weight, and have lower vibration and noise, which has great advantages. However, from production and assembly to maintenance and repair, rotary engines are not quite the same as conventional engines, and the development cost is high.

Of course, the RX-7 is also a rotor engine, it is a three-rotor engine, but it was discontinued. There is also a Mazda racing car that also uses a rotary engine, called furai, which is a four-rotor engine. The horses all use in-line four-cylinder engines.

Rotary engines are generally used in professional racing because they operate mechanically differently than they used to, and they can bring a lot of power to the car.

The rotary engine (Wankel engine, rotary engine) was invented by the German Felix Wankel (1902-1988), who successfully developed the first rotary engine on the basis of summarizing the research results of his predecessors and solving some key technical problems. Rotary engines use a triangular rotor rotational motion to control compression and emissions, as opposed to the linear motion of a traditional reciprocating piston engine.

Comparison of rotary engines with conventional reciprocating engines: Both reciprocating engines and rotary engines rely on the expansion pressure generated by the combustion of an air-fuel mixture to obtain rotational power. The difference in the mechanism of the two engines is the way in which the expansion pressure is used.

In a reciprocating engine, the expansion pressure generated on the top surface of the piston pushes the piston downward, and the mechanical force is transmitted to the connecting rod, which drives the crankshaft to turn. Rotary engines, for rotary engines, the expansion pressure acts on the sides of the rotor. This pushes one of the three faces of the triangular rotor towards the center of the eccentric axis.

This movement is carried out under the force of the two components. One is the centripetal force pointing towards the center of the output shaft, and the other is the tangential force (ft) that makes the output shaft turn.

MA 23 .6 are all in-line engines, rotary engines, poor durability, generally use a period of time, the rotor angles will wear out, affecting the sealing of the combustion chamber, need to be replaced, so the maintenance cost is high, not suitable for a large number of promotion

Mazda's engine is a rotary engine. The engine is mainly composed of rotor shell, rotor, side shell, eccentric shaft, air seal, etc. The rotor shell is equivalent to the cylinder block of a traditional piston reciprocating engine, and the electroplating coating on the inner surface has strong wear resistance.

The advantages and disadvantages of the rotor are as follows:

Advantages of the rotor:

The advantages of the rotary engine are high speed and high power, light weight, and fast throttle response, which are the three outstanding advantages of the rotary engine, because the rotary engine works rotary, rather than reciprocating like an ordinary piston engine (except for the star engine of the aircraft), the vibration of the rotary engine is much smaller, and the volume is easy to control. Due to the small inertia of the rotor engine, the rotor engine can quickly increase the speed and bring good acceleration performance.

Disadvantages of the engine:

The disadvantage of the rotor is that it has high fuel consumption and high pollution. Because there is no high compression ratio of a reciprocating engine, combustion cannot be sufficient. Although Mazda has added single-turbo and twin-turbo to the rotary engine, which only increases the output horsepower and moderately reduces exhaust emissions, it is still far from the reciprocating engine.

Millions of car purchase subsidies.

1. High fuel consumption and heavy pollution.

Due to the lack of a high compression ratio of a reciprocating engine, the combustion is not sufficient. Although Mazda has added single-turbo and twin-turbo devices to the rotary engine, it only increases the output horsepower and moderately reduces exhaust emissions, but it is still far from the reciprocating engine.

2. Serious wear and tear and short life of parts.

Because there is only one radial seal between the adjacent cavities of the triangle rotor engine, the radial seal is always in linear contact with the cylinder block, and the position of the contact with the cylinder block on the radial seal is always changing, and the engine is easy to cause air leakage due to the wear of the oil seal material after a period of use, which greatly increases fuel consumption and pollution. Its unique mechanics also make these engines difficult to repair.

3. Some standards are lacking.

Although the rotary engine has the characteristics of producing high output with a small displacement and high speed, due to the difference in operating characteristics from the reciprocating engine, the actual displacement of the rotary engine is multiplied by two when formulating tariffs related to the exhaust volume of the reciprocating engine in various countries around the world.

For example, Mazda's RX-8 sports car has an actual displacement of only 1,308 cubic centimeters, but in Japan it uses 2,616 cubic centimeters as the benchmark for tax bracket calculations.