- TASHKENT, Uzbekistan (UPI)
-- An Uzbek inventor said he has created a type of electrical generator
that does not rely on the principle of electromagnetic induction -- on
which all existing generators are based.
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- The new generator employs a concept called magnetic conductivity
modulation and it has potential applications in industry, communications,
households and even the military, explained Vladimir Matveev, the inventor,
a specialist in electronics.
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- Matveev said he is convinced he has created a fundamentally
different machine.
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- "All electrical machines I know are based on the
principle of interaction between the magnetic fluxes (lines of force) of
their rotor (rotating member) and stator (portion that remains fixed),"
he explained.
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- Such machines, Matveev said, are based on electromagnetic
induction, a property of energy discovered by Michael Faraday, an English
physicist and chemist, in the 19th century. The machines produce electrical
current either by moving a conductor across a magnetic field or by regulating
the flux of that field.
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- "My machine has a principal difference," Matveev
told United Press International. "The magnetic field of its stator
does not interact with the magnetic field of the rotor (because) its rotor
is not a magnet -- the rotor only changes the magnetic resistance of the
stator," he said.
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- The stator in Matveev's generator contains a magnetic
core with a permanent magnet and a detachable winding. A rotor with changeable
magnetic resistance is placed at a cutoff point in the core's magnetic
field. It is composed of alternating magnetic and air parts and can operate
in either linear or rotary form.
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- When the rotor is set in motion, its alternating components
pass through the magnetic core's cutoff point. When the magnetic part passes
through the cutoff point its magnetic resistance decreases. When the air
part passes through, its resistance increases.
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- This pulsing of resistance results in changing the magnetic
conductivity of the magnetic core, which in turn produces an alternating
electrical current in the core's winding. The frequency of the winding's
current can be controlled by regulating the rotor's speed or by changing
certain qualities of its magnetic or air parts. Also, the generator's electrical
output -- its voltage -- can be controlled by changing the configuration
of the rotor's components, Matveev explained.
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- Matveev said his generator is different from an invention
by Howard Johnson of the United States. Johnson discovered how to build
motors that can run without input of electricity or any other kind of external
energy. He obtained a patent in 1973 for describing electrical generation
using only the energy contained in the atoms of permanent magnets.
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- Matveev also said some Russian inventors have experimented
with a generator similar to his. Their generator changes its magnetic conductivity
by changing temperature. However, the machine requires a lot of time to
be heated and cooled alternately and results in a current frequency much
lower than what generally is used in industry. Moreover, the Russian generator
requires high steel density and greater mass.
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- Matveev's machine generates electric energy of industrial
frequency. Furthermore, he said his machine is simple, reliable and requires
less steel and mass than conventional generators. It also can be adapted
to flows of low speeds, such as weak water or wind streams. Matveev tested
the generator in his former household in Kazakhstan before he patented
it in Uzbekistan.
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- "I want to pass the invention on to all mankind,"
he said.
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- Boris Abdurakhmanov, director of the Uzbek Koinot (Cosmos)
design office and head of the laboratory of semiconductors and photoelectricity
of the Institute of Electronics of the Uzbek Academy of Sciences, told
UPI: "Matveev has offered a fundamentally new approach to a problem
of the creation of electric power generators."
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- Copyright 2003 by United Press International.
- All rights reserved.
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