THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu Walter
Abstract
A fuel composition for combustion according to claim 1, the fuel composition comprising a hydrocarbon-based fuel and magnetite material comprising magnetite. The magnetite material is in the form of powder with a size range from 1 nm-1 mm. The magnetite material is 0.1-80% wt of the fuel composition. The magnetite material comprises at least 40% magnetite (Fe3O4) and has at least 25% Fe (iron).
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu Walter
Abstract
An electric power generator comprises a rotor and a plurality of stators arranged coaxially and concentrically about a central axis. A first stator is provided concentrically around and adjacent to the rotor, the rotor and the first stator being separated by a rotor-stator airgap and a second stator is provided concentrically around and adjacent to the first stator, the first and second stators being separated by a stator-stator airgap. The rotor includes a plurality of magnetic pole structures configured to provide or generate a plurality of magnetic poles and a radially outer surface of each of the magnetic pole structures is curved with an average radius of curvature which is less than an average distance between the outer surface and the central axis. The rotor-stator airgap thus varies circumferentially in distance, with a shortest distance being at a circumferential centre of each of the magnetic pole structures and longest distance being at circumferential ends of each of the magnetic pole structures. The stator-stator airgap is of uniform thickness.
C10L 5/44 - Solid fuels essentially based on materials of non-mineral origin on vegetable substances
C10L 5/46 - Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
C10L 10/00 - Use of additives to fuels or fires for particular purposes
F23G 5/027 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment pyrolising or gasifying
F23K 1/00 - Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu, Walter
Abstract
An electric power generator comprises a rotor and a plurality of stators arranged coaxially and concentrically about a central axis. A first stator is provided concentrically around and adjacent to the rotor, the rotor and the first stator being separated by a rotor-stator airgap and a second stator is provided concentrically around and adjacent to the first stator, the first and second stators being separated by a stator-stator airgap. The rotor includes a plurality of magnetic pole structures configured to provide or generate a plurality of magnetic poles and a radially outer surface of each of the magnetic pole structures is curved with an average radius of curvature which is less than an average distance between the outer surface and the central axis. The rotor-stator airgap thus varies circumferentially in distance, with a shortest distance being at a circumferential centre of each of the magnetic pole structures and longest distance being at circumferential ends of each of the magnetic pole structures. The stator-stator airgap is of uniform thickness.
H02K 16/04 - Machines with one rotor and two stators
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
H02K 19/24 - Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators with variable-reluctance soft-iron rotors without winding
H02K 19/20 - Synchronous generators having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar generators with variable-reluctance soft-iron rotors without winding
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
H02K 21/12 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu, Walter
Abstract
An electric power generator comprises a rotor and a plurality of stators arranged coaxially and concentrically about a central axis. There is an inner stator provided radially inwardly of the rotor separated by an inner airgap and an outer stator provided radially outwardly of the rotor separated by an outer airgap. The rotor includes a plurality of magnetic pole structures configured to provide or generate a magnetic field having plurality of magnetic poles. The rotor is not of uniform cross-sectional thickness, wherein: an inner surface of the rotor bulges inwardly at the pole structures, the inner airgap being non-uniform as it is radially shorter at the pole structures and longer in between the pole structures; and an outer surface of the rotor bulges outwardly at the pole structures, the outer airgap being non-uniform as it is radially shorter at the pole structures and longer in between the pole structures.
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu, Walter
Abstract
This present disclosure is the concept that comprises means to generate secondary magnetic field by using material such as that comprising finely ground magnetite mixed with resin to form block or any suitable shape that is used by putting it on the return path, the central shaft and magnetite rotor. This magnetite for use in this case does not have a big steel core as in Electromagnets and does not have current conductors to generate the field. It can have a thin layer of steel in the centre whose function is to give it strength and to generate some of the magnetic field and conduct the magnetic field. The present disclosure is useful in conjunction with a normal electromagnet or a permanent magnet.
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu, Walter
Abstract
A generator includes a central rotor with at least one magnet configured to generate a magnetic field and a toothless stator provided around the rotor, the rotor being configured to rotate within, and relative to, the toothless stator. The toothless stator comprises a stator body, windings coupled to the stator body, the windings configured to have an electric current induced therein by the magnetic field, and a magnetite material comprising at least magnetite and provided around the windings, such that the windings are embedded in, or surrounded by, the magnetite material.
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Bass, Anthony
Skeen, Nicholas
Abstract
An electronic control system is for an electrically excited electric generator which comprises a rotor with electromagnets and a stator with windings configured to produce an electrical output. The electronic control system comprises a controller having at least one control input and a control output, the control input being configured to receive a position signal indicative of a rotary position of the rotor, the control output being connected or connectable to the electromagnets of the rotor. The wherein the controller is configured to provide the control output based, at least partially, on the rotary position of the rotor and a difference between a desired output voltage and an actual output voltage for the rotary position of the rotor. The control output is configured to control a strength of the electromagnets which, in turn controls, the actual output voltage.
H02P 9/30 - Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
H02K 16/00 - Machines with more than one rotor or stator
H02P 9/14 - Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
H02K 21/04 - Windings on magnets for additional excitation
9.
AN ELECTROMAGNET COMPONENT COMPRISING MAGNETITE FOR USE IN A GENERATOR
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu, Walter
Bass, Anthony
Abstract
An electromagnet component (100) for use in a generator comprises at least one magnetic shoe (102) comprising magnetite and a binder, the shoe (102) being at least partially arcuate in cross-section. A metallic core (110) is provided adjacent the magnetic shoe (102) and operatively radially spaced therefrom. A generator comprises one or more of the electromagnet components (100).
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu, Walter
Bass, Anthony
Abstract
An electric generator (100) has a stator and a rotor, and the stator comprises a central shaft (102) and has at least one axially-offset coil (104) at an axial end (referred to as the coiled portion 106)) of the central shaft (102) such that a major central portion (108) of the central shaft (102) is not surrounded by the coil (104), the coil (104) being configured to magnetise the central shaft (102) such that the central shaft (102) has axially spaced apart unlike magnetic poles (S, N), with one pole (S, N) being provided at the coiled portion (106) and the other pole (N, S) being provided at the major central portion (108). The rotor comprises a magnetising layer (112) arranged co-axially around a first generating layer (110) and radially aligned with the major central portion (108), the magnetising layer (112) having radially spaced apart unlike magnetic poles (S, N) with an inner magnetic pole (N, S) having an unlike polarity to that of the aligned major central portion (108).
THE TRUSTEES FOR THE TIME-BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu, Walter
Abstract
An electric generator has magnetising and generating layers which are arranged coaxially and rotatable relative to each other. More specifically, the generator has at least two magnetising layers, namely an inner magnetising layer and an outer magnetising layer and the magnetising layers each include a plurality of circumferentially spaced magnetic poles. The poles of the inner magnetising layer are opposed and radially aligned with unlike poles in the outer magnetising layer, thereby creating a straight magnetic flux in a radial direction between the unlike poles of the respective magnetising layers. The generating layer is arranged between the magnetising layers.
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu Walter
Abstract
An electric power generator comprises a rotor and a plurality of stators arranged coaxially and concentrically about a central axis. There is an inner stator provided radially inwardly of the rotor separated by an inner airgap and an outer stator provided radially outwardly of the rotor separated by an outer airgap. The rotor includes a plurality of magnetic pole structures configured to provide or generate a magnetic field having plurality of magnetic poles. The rotor is not of uniform cross-sectional thickness, wherein: an inner surface of the rotor bulges inwardly at the pole structures, the inner airgap being non-uniform as it is radially shorter at the pole structures and longer in between the pole structures; and an outer surface of the rotor bulges outwardly at the pole structures, the outer airgap being non-uniform as it is radially shorter at the pole structures and longer in between the pole structures.
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu Walter
Abstract
An electric power generator comprises a rotor and a plurality of stators arranged coaxially and concentrically about a central axis. A first stator is provided concentrically around and adjacent to the rotor, the rotor and the first stator being separated by a rotor-stator airgap and a second stator is provided concentrically around and adjacent to the first stator, the first and second stators being separated by a stator-stator airgap. The rotor includes a plurality of magnetic pole structures configured to provide or generate a plurality of magnetic poles and a radially outer surface of each of the magnetic pole structures is curved with an average radius of curvature which is less than an average distance between the outer surface and the central axis. The rotor-stator airgap thus varies circumferentially in distance, with a shortest distance being at a circumferential centre of each of the magnetic pole structures and longest distance being at circumferential ends of each of the magnetic pole structures. The stator-stator airgap is of uniform thickness.
H02K 16/04 - Machines with one rotor and two stators
H02K 19/20 - Synchronous generators having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar generators with variable-reluctance soft-iron rotors without winding
H02K 19/24 - Synchronous generators having windings each turn of which co-operates alternately with poles of opposite polarity, e.g. heteropolar generators with variable-reluctance soft-iron rotors without winding
H02K 21/12 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
H02K 21/16 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
THE TRUSTEES FOR THE TIME BEING OF THE KMN FULFILMENT TRUST (South Africa)
Inventor
Makgeru, Kabu Walter
Abstract
A fuel composition for combustion according to claim 1, the fuel composition comprising a hydrocarbon-based fuel and magnetite material comprising magnetite. The magnetite material is in the form of powder with a size range from 1 nm ? 1 mm. The magnetite material is 0.1?80% wt of the fuel composition. The magnetite material comprises at least 40% magnetite (Fe3O4) and has at least 25% Fe (iron).
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