Imagine how many exist in the world of motor vehicles.Almost 99% of the car fleet of the world have a mover - piston engine.This engine is reliable and has a long time is used in various types of vehicles.But back to the story.After the industrial revolution, which was caused by the advent of the steam engine, the world rushed to the wheels.The absence of a living driving force, which is quite a lot of trouble, so it was very attractive.But if you greatly simplify the operating principle of the rotary engine was used in the mills still operating in the wind.Just then no wonder why.
Thus, the birth of more than usual we gave a powerful piston engine qualitative leap.Recall principle.In the same enclosed space environment changes and displacement.By the injection of fuel and air to create jobs on the piston.He, in turn kinematically connected to the shaft through a complex system of a crank mechanism.Forward motion (piston, variable volume) is converted into rotational motion of the shaft.If you look at the rotary engine, the operating principle will be somewhat different.
rotary engine so called because the main working part - a rotor, instead of the piston.The rotor in such an engine is presented in the form of massive treugolnikoobraznogo element inside which there is a hole with teeth.The stator contains the outer shell and the inner side rings shaft with mating teeth is significantly smaller diameter.This is one type - the rotary engine.The principle of operation of the device and is somewhat unusual in that the rotor is rotated asymmetrically relative to the center of the engine.At the same time for one revolution taking place already three working cycle in its entirety (with respect to the piston).This in a nutshell.If
in detail, the principle of operation of such: air intake, compression, fuel injection, the release (extension).This cycle is implemented in reciprocating internal combustion engines, but only the work performed is comparable to a 6-cylinder internal combustion engine of the piston type.But why, then, the principle of the rotary engine has not made a revolution?The answer is simple - not everything is what it looks like.This type of internal combustion engine takes up almost all the world's brands, including domestic.We are doing everything but it turned out to put into practice at the units.Rumor has it that Felix Wankel began work on the engine in 19 years.But this is unlikely, because while technical development was weak, and the formation of a specialist - a luxury and rarity.
However, we know from history, that he got a job in a printed technical publication.This work was the starting point for the Wankel in the world of technology.It is known that he began to actively develop the idea, and so was the name of this type of engine - the Wankel engine.Let's go back to the question - why rotary engines did not become widespread?The answer can be found in the advantages and disadvantages of the scheme engine.
Advantages of work that has a rotary engine (operating principle described above) are in the following paragraphs:
- high power output;
- lightness of the structure (as compared with the piston);
- no limit (dead) pixels;
- does not need additional elements (crank mechanism).
disadvantages of this type:
- a huge load on the bearings and the teeth;
- fast overheating;
- the complexity of the seal the individual chambers.
It would seem that the rotary engine working principle is more successful than the piston engine.Even more advantages than disadvantages, and they (the benefits) are very important.But developers are not able to adequately bring stable operation cycles to the operating instance.However, there were exceptions.At the time, the vehicle Ro-80 was awarded the title "Car of the year 1987".And it's still figure.
Nowadays problems encountered while engineers are quite solved.Items can be made of composite and high-strength alloys.But manufacturers are in no hurry to hire innovations.Perhaps due to the fact that this type of motor is only with more power, while having a huge expense.Contrast this with the price of fuel and natural resources, and get a great perspective, which is probably not destined to become a mass.
