Majority of being used nowadays
aircrafts has a jet engine. Screws and
propellers are mainly used in small
sporting aviation, unmanned aircrafts and
also in wind-power energetics. But in fact
their technical resources are depleted. That
means that at speeds close to a sound
speed a classical screw stops to produce
the required towing performance.
However, propulsive agents much
cheaper and more efficient than jet ones.
Scalar field of scavenging speeds of a classical three-bladed screw shows an
irregularity of rejected air flow.
Each blade creates its own jet in the way of separate protuberance that make
damaging vibrations and tow irregularity.
Sound visualization that generates with turbulence behind a classical
Partially this task is done with screws of acinaciform
shape surface and also ring nozzles, fenestrons, arch
But nozzles of different type complicate and increase
the weight of a construction, and a console mounting of
acinaciform shape blades reduces their rigidity and
reliability. These drawbacks reveal much more in screws
with blades of reverse acinaciform shape.
We went further and now we offer a screw with
blades of double acinaciform shape (direct and reverse)
at the basis of which Myobnius surface lies. The given
screw is supposed to be interchangeable completely
with the existing aviation and ship screw propellers at
simultaneous expansion their resources to the side of
high speeds and rotations up to hypersound.
Speed isosurface of propeller air flow with blades of
double acinaciform shape
Parallel development is being made by other companies all over the world
which got similar results but without any methodological and scientific
justification covering all possible variants.
Dutch wind-powered engine ENERGY BALL with silent spherical propeller
with the effect of Venturi. The company is planning to sell Energy Ball of
different size: from 1 to 2 m in diameter. The cost of their model will make 3,5 -
7 thousand dollars.
The similar development offers Japanese company Loopwing.
Combining direct and reverse acinaciform shape in our propeller,and also a two-
sided mounting for each blade of an arch (or loop) construction, guarantees high
rigidity and towing performance that do not have analogs.
1. Each blade has two associated areas of a working surface that guarantees
smooth acceleration of environment flow.
That means approach flow is used more efficiently.
2. An offered propeller works at higher rotations and guarantees to the aircraft
higher speed, that is it takes a niche between classical screws and jet propulsive
That means that all used engines may be saved from dropping reducer and a
propeller may be mounted directly to the power shaft.
It makes the construction of air propulsive agents easier and cheaper.
3. Thrown air flow has more homogeneous concentrated form than a classical
4. Noise and turbulence is much lower than classical screws have because of big
axial dimension of our propeller and more smooth acceleration of environment with it.
It gives opportunity to get an access to the high-speed screw planes of civil
aviation to the usage in Europe with it high noise requirements.
The propeller can be used as (except for aviation)
- comb propellers for ships
- the propeller for hydroelectric power stations placed in mountains (now the
development of the project about making the propeller at the mountain rivers are being
- a propeller at sea streams
All the abovementioned also refers to a fan
for computer cooler. A patent for the given fan a
company ArbeitsComputer purchases. But we
are ready to complete its construction and
patent it again.
Heterogeneous (different in blades) fan of the computer cooler.
These data are confirmed not only with the real tests of
prototypes but also virtual scavenging of developed 3D
models of famous propellers at multinuclear computers
with a software Star-CCM of CD-adapko company. This
software allows to get sections of scalar and vector
speed field, pressures and turbulences, their volumetric
isosurfaces and many other characteristics of air flow
which can give no wind tunnel. Therefore,virtual
scavenging is a final stage of design techniques of any
screws and propellers developed by authors, quite
helpful in the process of studying that is visually
illustrated with below attached photos.
Scalar speed field of propeller air flow with blades
from the surface of Myobius.
There were offered non-traditional forms of
propellers and screw propellers which allow
to make considerably bigger tow with
significantly less noise and turbulence of
outflow that is especially important for marine
propulsive agent aircrafts and other
aerohydrodynamic systems where efficient
transformation of mechanical output is
Rotor wind-powered engine with wings of open-ended
profile is mounted on the self-supporting mast on a bearing
with crossed rollers.
Majority of used wind turbines on the planet are horizontal. They have a
number of significant drawbacks: 1. They are directed downwind with difficulty
(that is if suddenly wind changes its direction, performance reduces); 2. To be
more efficient it is necessary to lift a generator on the mast and mount it just to
the wind turbine axis but this is labour-consuming and expensive; 3. They
occupy a lot of room.
Our offer for vertical wind turbine usage is not new. It is used in many
countries in the world. Particularly in the United States of America vertical wind
turbines began to be mounted between earlier mounted horizontal ones because
they had smaller dimensions and didn’t need a direct air jet. It is enough to have
that turbulence that is created with the help of horizontal wind turbines.
Conclusion: Vertical wind turbines do not have those drawbacks that
horizontal ones do. If wind direction constantly changes, performance doesn’t
reduce. Generator can be mounted just on the ground. Vertical wind turbines
have smaller dimensions comparing with horizontal ones.
What is our innovation?
In blades. They have slot construction. This model is patented by Shpadi
Andrey Leonidovich. Its advantages are those: whatever direction wind blows,
polyhedral blade always allows to use its energy as much as possible. If wind is
gusty and changes direction frequently, it doesn’t make the performance lower,
but on the contrary, it will raise it.
The given conclusion is confirmed with virtual scavenging at computer.
Why are all wind-powered generators so expensive and have major dimensions?
Why for transformation wind energy in electricity with declared volumes is necessary
to have wind speed not less than 10 m/sec? For example, in Russia medium wind
speed is 5 m/sec. For this problem decision slow-speed multipolar electrogenerators
are used. But they have big dimensions, weight and high cost.
The majority of wind-powered generators serves for electric power output and
after that electricity transforms into heat or again in mechanical work (machines,
We went further and now offer to transform wind energy directly into heat or
cold. There are two variants of this task fulfilment: the first one is heat-generators with
coeffiient of efficiency close to 100%. (device transforming mechanical power in heat).
The second one is a heat pump, pumping out heat (or cold) from one environment and
pumping it over in another place (for example, from street to a building). Coefficient of
heat efficiency of heat pumps (an analog to coeffiient of efficiency) passes a mark of
Working substance of our heat-generator is magnetic liquid and for the heat pump
is foam, that is a mixture of gas and oil.
Under the influence of constant magnets and viscous friction because of local
quazipolymerization (that is liquid transformation to polymer) viscous environment
generates heat, whereas without such influence the environment has small viscosity of
usual water or oil that would request very high rotations.
At the moment when the liquid is under the influence of constant magnetic field,
big friction arises, that is why we can apply here our low-speed wind turbine. Because
of intensive friction there is no need to produce high rotations. It is enough to have 200
rot./min. And this is in power of our wind-installation.
However, the drawback of all heat-generators is that for each kilowatt of used
for them energy (electrical, mechanical or the energy of fuel combustion), they
produce not more that a kilowatt of heat (or cold).
Even if we use waste oil in our installation, extracted heat will achieve 200
degrees Celcius that allows to use it for food preparation.
Whereas we increase the efficiency of heat pump by using Karno’s triangle
half cycle instead of widely-used thermodynamic fridge cycles or heat pump.
Possessing two times less area and corresponding mechanical consumption it
guarantees the same heat transmission as an ideal Karno’s cycle does that is
considered like an unachievable ideal.
By this we increase the efficiency of installation two times more, that is from
a wind installation of 10 kilowatts we can get 80 kilowatts of heat (or cold).
In the given installation cycle compression and oil foam movement with inert
gas (argon) take place but to to get heat (or cold) release, it is necessary to have
resistance in the system. Usually it is provided with the help of a throttle.
We went further and now we offer to mount expansion engine with
electrogenerator instead of a throttle. It recycles and accumulates free of charge
electric power in a storage battery. Also it is offered to mount a receiver with
metastable substance state, guaranteeing installation work possibility in case of
windless weather during several hours.
Heat pump with
The way of projected flight
Patent application № 2008134951
This decision reminds the effect which makes a feather or a dry leave torn
from a branch and it projects to the ground slowly and penduluosly. The very
process happens in flywheel conditions of a pendulum type. The specificity of
the decision is that a quasiprojected machine because of its geometry can
easily transfer into a landing mode from any position and not be smashed up
at its fulfilment.
Fields of application:
Group portable rescue devices;
Containers for cargo unloading, in areas where plane landing is impossible;
Multiuse landing modules;
Different profiled aircrafts and submersible devices.