Pistons and turbine engines, which is more powerful?Can be installed on the plane

To convert the thermal energy generated by fossil fuel combustion into kinetic energy to drive the transportation, the engine must be used, and the common engine can be divided into two categories, that is, the piston engine and turbine engine. Which one is more powerful?

Maybe you think that these two engines are not comparable at all. Isn't the piston engine the kind of engine used in our cars? But the turbine engine can be installed on the plane. In fact, this is not the case. It is not easy to judge who is good and bad, because both of them can be installed on the plane. What I said is not those antique planes, but now it is still still there is still still on the current currently on The planes soaring in the sky.

In essence, there is no difference between propeller aircraft and cars, because they all rely on mechanical rotation to achieve operation, but the wheels are rotated on the car, and the aircraft rotates on the aircraft.

Since it is rotating, the piston engine used on the car can naturally be applied to the aircraft, but the required "cylinder number" is more. Generally speaking, the cars with a displacement of less than 1 liter are 3 cylinders, 1-2.5 liters are 4 cylinders, about 3 liters are 4 cylinders, about 4 liters are 8 cylinders, and cars with a displacement of more than 5.5 liters are used. It is a 12 -cylinder engine. The 12 -cylinder is already very fierce for cars, but for the plane, this is just starting. For the piston engine, we are very familiar with it, and its working principle is very simple. It is to promote the piston movement through the process of inhalation, compression, ignition, and exhaust. It's okay.

It can be seen from the principle of the piston engine that the more the cylinder is the same, the higher the power of the cylinder, so the number of cylinders is naturally more to drive the aircraft.

However, after the number of cylinders increased, there was a problem with how to arrange it. Among the cars, the cylinder is rowed into a column, and in the aircraft, most of the cylinders are arranged in circles, some are arranged in one circle, and some are staggered into two circles. The piston engine installed in the aircraft in the early days was rotated with the propeller, and a significant feature of this aircraft was to manually rotate the propeller in front of the aircraft when starting. However, such a plane has basically been eliminated now. It is not because it needs manual help, but that the rotating engine is not conducive to the stability of the structure, and it is easy to fall apart.

Although most of the piston engines in the aircraft are still arranged in a circle, the engine itself is no longer rotating with the propeller.

The propeller is a rotary machine, so you can apply the piston engine used in the car. So do all the propeller aircraft use the piston engine? Not. Compared with the piston engine, the turbine engine is more widely used. It can be applied to both propellers or jet passenger aircraft. On the surface, it seems that the jet passenger aircraft is very different from the propeller aircraft, but there is no difference in essence, because the jet passenger aircraft just replaces the propeller into a fan, so the turbine engine installed on the jet aircraft is Known as a "turbine fan engine", the turbine engine installed on the propeller aircraft is called "turbine propeller engine".

How does the turboprop engine work?

When the engine is running, the air will enter from the front of the engine. At first, these air will become compressed air through the compressor blades. When the compressed air continues to move backwards, the compressed air is mixed with the fuel. Swell out quickly, these spraying objects will promote the turbine blades behind the engine. The blades rotate and drive the connection shaft to rotate together. The air sources are constantly compressed in and pushed into the rear. This is the basic principle of the turbine propeller engine.

Obviously, the structure of the turbine engine is simpler by comparison.

We all know that the simpler the structure, the more stable the operation is, the less likely to fail, so the stability and durability of the turbine engine must be significantly stronger than that of the piston engine, and its disadvantage is that it is not economical. In contrast, the turbine engine has high requirements for materials and processes, and once damaged, it is difficult to repair, so the price is high. Usually it is only loaded on a large civil airliner because the turbine engine has the characteristics that can compress the air. This One point can fully ensure the aircraft's flight height. Small planes usually use piston engines. This is not to say that the piston engine is shorter. It also has advantages, that is, fast reaction speed, so it is the best choice for stunt performance machines.

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