The simplest jet engine is a valveless pulsating unit. After his invention, it became apparent that he could move a rocket even in airless space. Due to the fact that they began to use turbojet engines everywhere , the development of the type of propulsion under consideration was suspended. But many lovers continue to be interested in, study, and even assemble the unit themselves. Let's try to make a jet engine with our own hands.
Lokved patent motor
The device can be built of any size, if you strictly observe the necessary proportions. A self- made jet engine will not have moving parts. It is capable of functioning on any type of fuel, if a device is provided for its evaporation before entering the combustion chamber. However, the start is made on gas, since this type of fuel is much more convenient than others. It’s easy to build, and it’s not that much money. But we must prepare for the fact that the jet engine will work with great noise.
Do-it-yourself is installed and an evaporating atomizer for liquid fuel. It is placed on the end of a metal pipe through which propane enters the combustion chamber. However, if it is planned to use only gas, then this device is optional. You can just run propane through a 4 mm diameter tube. It is attached to the combustion chamber with a ten millimeter fitting. Sometimes different tubes for propane, kerosene and diesel fuel are also provided.
At the start, gas enters the combustion chamber, and when the first spark occurs, the engine starts. Cylinders are easy to get today. Convenient is, for example, having eleven kilograms of fuel. If a large flow rate is expected, the gearbox will not provide the necessary flow. Therefore, in such cases, simply install a needle valve. At the same time, the cylinder must not be emptied to the end. Then there will be no ignition in the tube.
To install a spark plug, a special hole must be provided in the combustion chamber. It can be made using a lathe. The case is made of stainless steel.
Reinst's Pulsed Aircraft Jet Engine : Essential Details
It is not necessary to use metal pipes and other parts that are difficult for a simple layman. If a do-it-yourself jet engine is supposed to be made of a very small size, the following improvised components will be required for its manufacture:
- a can of glass for four hundred milliliters;
- a tin can of condensed milk, from which only the side part is required;
- alcohol or acetone;
- compass;
- scissors;
- dremel or ordinary awl;
- pliers;
- pencil;
- paper.
How to make a jet engine
A hole of twelve millimeters is made in the lid of the glass jar.
To make a diffuser, a template is drawn on paper using a compass. The nearest radius is taken at 6, and the far - at 10.5 centimeters. From the sector that turned out, measure 6 cm. Cutting is done at the near radius.
The template is applied to a tin can, circled and cut out the necessary piece. From both edges, they bend in millimeters from the obtained part. Next, make a cone and connect the parts of the bent edges. So get a diffuser.
Then four holes are drilled on its narrow half. The same is repeated on the lid around the previously made hole. Using a wire, suspend the diffuser under the opening of the lid. You should get a distance to the top edge of about 5 to 5 mm.
It remains only to pour alcohol or acetone into the jar half a centimeter from the bottom, close the jar and light the alcohol with a match.
Soviet literature for jet models
Miniature pulsating jet engines for aircraft models can also be made independently. Some lovers even today use literature written in Soviet times in the sixties of the last century when assembling the motor design. Despite such a significant period of time from the moment of publication, it continues to be relevant and can help in the development of new knowledge and practice by young designers.