We open a new section, to talk about the engines.
We will seek and explain how they work and how you can build thermal and electric motors.
From Stirling engines in which I am very interested until simple battery powered motors and a screw. Suggestions are welcome.
They are the machines whose speed for a given number of poles is unique and is determined by the network frequency. The frequency being the number of cycles per unit of time. Each loop goes through a north pole and a south pole.
f=p*n/60
In Europe and in most of the world the frequency of industrial networks is 50Hz and in the USA and some other countries it is 60Hz)
When it works as a generator, the speed of the machine must be perfectly constant.
The history of science and technology is a constant evolution of discoveries and improvements. A great example of this is electrostatic machines or generators. In this short essay we are going to see the history of electricity chronologically through discoveries related to electrostatics and their technical applications, especially in the form of generators, since it was discovered that rubbing amber attracted certain objects and it was not well known why even the most modern generators that are now obsolete machines that are used for teaching and recreational physics games.
An electrostatic generator is capable of generating high voltages but with very small currents.. They are based on friction, from mechanical energy that we have to contribute to achieve friction in two materials, one part is transformed into heat and the other into electrostatic energy.
The 775 motors are direct current motors used in many projects and that I think are very little known to people.
When we talk about these types of engines, the 775 refers to the motor size that is standard. In this way we can find 775 manufactured by different brands, with different operating voltages and different power, with 1 set of bearings or with two. But what everyone respects is the size of the engine.
The Dawn airship that has recently arrived at Ceres and is orbiting around it has done so by means of a new engine.
Is an ion engine that will power the next generation of aircraft. Electrical energy is used to create charged particles from the fuel, usually Xenon gas, and accelerate them to extremely high speeds. The escape velocity of conventional rockets is limited by the chemical energy stored in the molecular bonds of the fuel, which limits the thrust to about 5 km / s. However ion engines are limited only by the electrical power available in the ship space, obtaining escape velocities that move in a range between 15 km / s to 35 km / s.
Lately I write little but yes Patelo pulls out a new engine, this must be reviewed. I see the news in Fogonazos 1 year of work, 2520 hours to build this wonder.
For those who do not know him, Patelo (José Manuel Hermo Barreriro) is a 75-year-old naval mechanic, retired, which has become famous for the engines it manufactures.
The last 32 cylinders in W, an engine that would be capable of delivering a lot of power if it were not a miniature compressed air. It impresses me, that you get such perfect machines and that they do not have any vibrations. Look at the coins he puts on the motor. As Patelo says, the level of vibrations determines the life of the machinery.
A desktop engine, using a new principle to transform electricity into rotational force, is being developed in the laboratories of C-Motive Technologies, a startup that is commercializing technology from the College of Engineering of the University of Wisconsin- Madison
Company co-founder Dan Ludois, professor of electrical and computational engineering on UW comments:
We have demonstrated the concept of a new motor that uses electric fields instead of magnetic fields to transform electricity into a rotating force.
The concept is not entirely new. Benjamin Franklin (See Franklin's Electrostatic Motor) and other scientists They described and built motors based on electrostatic forces but all as mere laboratory curiosities, none that were functional and usable.
If you have built your Van der Graaff generator and you don't know what to do with it, you can use the static electricity you generate as the power source for this electrostatic motor.
It is true that it is no more than a mere curiosity, but it can be a good science project, generator + electrostatic motor. Even make a Electroscope to join the pack of electrostatic experiments :)
The old one Schneider Electric Library and their old website disappeared, but we can find all the documentation that there was and the one that they have continued to add in the section of Downloads from your website.
I want to praise this website because it is a great resource to find information on electricity, electronics and automation. All prepared by reputable industry professionals and teachers.
El Mendocino Engine is a electric motor that magnetically levitates and uses solar energy. The beauty of the engine is watching it run while floating in the air. It really looks like magic.
Formed by two different parts, the magnetic system that makes it levitate and the electromechanical part of the motor that makes it turn. The motor has four faces (square section) around an axis, which form the rotor. The rotor block has two sets of coils and a solar cell attached to each side. The shaft is horizontal and has a magnet at each end.
Little by little and article by article we are increasing our little corner about stirling engines.
This time we found an article with the detailed construction of the Stirling LTD engine in makezine (the link is broken) luckily we keep the content. This engine is LTD, which means that it is designed to work with small temperature differentials.
We have a complete guide on Stirling engines, if you want to delve into this exciting world it is very interesting that you also learn a little about its history, why they work, what their cycles are, the types that there are etc.
It is a machine in which you have to be quite meticulous in its construction. It is not very complicated to reproduce it, but if we are careful we will obtain a much more fluid operation.
As you can see in the image, it is a type engine
