21-11-2012, 12:22 PM
ELECTRICAL MOTOR-GENERATOR GB2282708
power generator.pdf (Size: 294.77 KB / Downloads: 71)
ABSTRACT
An electrodynamic motor-generator has a salient pole permanent magnet rotor interacting with
salient stator poies to form a machine operating on the magnetic reluctance principle. The
intrinsic ferromagnetic power of the magnets provides the drive torque by bringing the poles
into register whilst current pulses demagnetize the stator poles as the poles separate. In as
much as less power is needed for stator demagnetization than is fed into the reluctance drive
by the thermodynamic system powering the ferromagnetic state, the machine operates
regeneratively by virtue of stator winding interconnection with unequal number of rotor and
stator poles. A rotor construction is disclosed (Fig 6, 7). The current pulse may be such as to
cause replusion of the rotor poles.
BACKGROUND OF THE INVENTION
There have been proposals in the past for machines in which the relative motion of magnets
can in some way develop unusually strong force actions which are said to result in more power
output than is supplied as electrical input.
By orthodox electrical engineering principles such suggestions have seemed to contradict
accepted principles of physics, but it is becoming increasingly evident that conformity with the
first law of thermodynamics allows a gain in the electromechanical power balance provided it is
matched by a thermal cooling.
In this sense, one needs to extend the physical background of the cooling medium to include,
not just the machine structure and the immediate ambient environment, but also the sub -
quantum level of what is termed, in modern physics, the zero-point field. This is the field
associated with the Planck constant. Energy is constantly being exchanged as between that
activity and coextensive matter forms but normally these energy fluctuations preserve, on
balance, an equilibrium condition so that this action passes unnoticed at the technology level.
Physicists are becoming more and more aware of the fact that, as with gravitation, so
magnetism is a route by which we can gain access to the sea of energy that pervades the
vacuum. Historically, the energy balance has been written in mathematical terms by assigning
'negative' potential to gravitation or magnetism. However, this is only a disguised way of saying
that the vacuum field, suitably influenced by the gravitating mass of a body in the locality or by
magnetism in a ferromagnet has both the capacity and an urge to shed energy.
Now, however, there is growing awareness of the technological energy generating potential of
this field background and interest is developing in techniques for 'pumping' the coupling
between matter and vacuum field to derive power from that hidden energy source. Such
research may establish that this action will draw on the 2. 7K cosmic background temperature
of the space medium through which the Earth travels at some 400 km/s. The effect
contemplated could well leave a cool vapour trail' in space as a machine delivering heat, or
delivering a more useful electrical form of energy that will revert to heat, travels with body
Earth through that space.
BRIEF DESCRIPTION OF THE INVENTION
According to one aspect of the invention, an electrodynamic motor-generator machine
comprises a stator configured to provide a set of stator poles, a corresponding set of
magnetizing windings mounted on the stator pole set, a rotor having two sections each of
which has a set of salient pole pieces, the rotor sections being axially spaced along the axis of
rotation of the rotor, rotor magnetization means disposed between the two rotor sections
arranged to produce a unidirectional magnetic field which magnetically polarizes the rotor
poles, whereby the pole faces of one rotor section all have a north polarity and the pole faces
of the other rotor section all have a south polarity and electric circuit connections between an
electric current source and the stator magnetizing windings arranged to regulate the operation
of the machine by admitting current pulses for a duration determined according to the angular
position of the rotor, which pulses have a direction tending to oppose the polarization induced
in the stator by the rotor polarization as stator and rotor poles separate from an in -register
position, whereby the action of the rotor magnetization means provides a reluctance motor
drive force to bring stator and rotor poles into register and the action of the stator
magnetization windings opposes the counterpart reluctance braking effect as the poles
separate.
According to a feature of the invention, the circuit connecting the electric current source and
the stator magnetizing windings is designed to deliver current pulses which are of sufficient
strength and duration to provide demagnetization of the stator poles as the stator and rotor
poles separate from an in -register position.In this regard it is noted that in order to suppress
the reluctance drive torque or brake torque, depending upon whether poles are converging or
separating, a certain amount of electrical power must be fed to the magnetizing windings on
the stator. In a sense these windings are really 'demagnetizing windings' because the polarity
of the circuit connections admit the pulse current in the demagnetizing direction. However, it is
more usual to refer to windings on magnetic cores as 'magnetizing windings' even though they
can function as primary windings or secondary windings, the former serving the magnetization
function with input power and the latter serving a demagnetizing function with return of power.
DETAILED DESCRIPTION OF THE INVENTION
The fact that one can extract energy from the source which powers the intrinsic ferromagnetic
state is not explicitly evident from existing textbooks, but it is implicit and, indeed, does
become explicit once pointed out, in one textbook authored by F. B. Moullin.
His book 'The Principles of Electromagnetism' published by Clarendon Press, Oxford (3rd
Edition, 1955) describes on pages 168-174 an experiment concerned with the effect of air
gaps between poles in a magnetic circuit. The data obtained are reproduced in Fig. 1, where
Professor Moullin shows a curve representing a. c. current input for different air gaps, given
that the voltage supplied is constant. In the same figure, Moullin presents the theoretical
current that would need to be applied to sustain the same voltage, and so the related pole
forces across the air gap, assuming (a) no flux leakage and (b) that there is complete equality
between inductive energy input and the mechanical energy potential for the magnetization that
is established in the air gap in a quarter-cycle period at the a. c. power excitation frequency.