An electrical pump or generator apparatus comprises a sealed housing having fluid inlet and outlet ports and an impeller rotatably mounted inside a cavity of the housing, the impeller being mounted on a shaft for rotation about an axis, the shaft being confined inside the sealed housing. An electric machine of the pump has a stator disposed outside the housing and a rotor sealed inside the housing. In use a rotating magnetic field extends through a boundary wall of the housing to magnetically couple the stator and rotor on opposite sides of thereof. The need for a shaft seal is thus avoided and the apparatus is more compact than conventional pumps and generators.
The present disclosure relates to electromagnetic motors. In some disclosed embodiments, an electromagnetic motor or generator comprise a coil and a stator comprising a 3D-printed former disposed within the coil, the former comprising a cavity containing fluid particles of material in liquid or powdered form, the particles having a relative permeability which is greater than that of air. The particles are free to move and align with the magnetic field in manner according to the strength and pattern of the induced field.
The present disclosure relates to electromagnetic motors. In some disclosed embodiments, an electromagnetic motor or generator comprise a coil and a stator comprising a 3D-printed former disposed within the coil, the former comprising a cavity containing fluid particles of material in liquid or powdered form, the particles having a relative permeability which is greater than that of air. The particles are free to move and align with the magnetic field in manner according to the strength and pattern of the induced field.
H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
4.
Air cooling of an internal combustion engine with an electrical motor or generator
An electrical machine comprises a stator (11) having a plurality of windings (25) and a rotor (19) having a plurality of permanent magnets (26) arranged to rotate around the windings (25), the magnets (25) being mounted to an outer portion (23) of a rotor body (20), the rotor body (20) further having an inner hub portion (21) and a plurality of circumferentially-spaced arms (22) which extend radially from the hub portion (21) to the outer portion (23) of the body (20), at least one of the arms (22) comprising a vane (24) which causes an axial airflow as the rotor rotates. The axial airflow flows over the windings (25) and helps to prevent overheating without the need for any additional cooling. Since the cooling is conveniently provided by part of the rotor, the machine the machine is simple and compact.
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
H02K 1/2789 - Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
There is described a next-generation electronic magnetic gearing (eDTS) for an inverter drive for an electric vehicle including a primary firmware having an Al system to oversee all the operational aspects of the powertrain hardware and system firmware. The Al receives information from various sources such as shift maps, sensors data etc. and regularly alters and updates the algorithm and the data of the said maps and the hardware parameters based on usage and ageing to their respective firmware libraries, stored in an inverter drive's non-volatile memory or in the cloud. The stored data are accessed by the primary and system firmware and utilize the updated information to determine the most efficient winding configuration.
H02P 25/18 - Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
An electrical pump or generator apparatus (10) comprises a sealed housing (11) having fluid inlet and outlet ports (17, 15) and an impeller (12) rotatably mounted inside a cavity of the housing (11), the impeller (12) being mounted on a shaft for rotation about an axis, the shaft being confined inside the sealed housing (11). An electric machine of the pump (10) has a stator (20) disposed outside the housing (11) and a rotor (29) sealingly disposed inside the housing (11). In use a rotating magnetic field extends through a boundary wall (14) of the housing (11) to magnetically couple the stator (20) and rotor (29) on opposite sides of thereof. The need for a shaft seal is thus avoided and the apparatus is more compact than conventional pumps and generators.
F03B 3/10 - Machines or engines of reaction typeParts or details peculiar thereto characterised by having means for functioning alternatively as pumps or turbines
F04D 13/02 - Units comprising pumps and their driving means
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
A method of forming an electrical motor, generator or other electromagnetic device by 3-D printing, wherein layers e.g. 24c-24s are successively deposited which comprise conductive regions and regions of a laminated, core, yoke or other former (11), so as to build up a plurality of conductors (12) extending inside spaces (26) in the former (11). The conductors (12) are interconnected at their ends to form a winding-like structure in or around the former (11) or a part thereof. The method enables each space (26) available in the former (11) to be filled with conductors (12), thereby maximising the efficiency of the device.
H02K 15/085 - Forming windings by laying conductors into or around core parts by laying conductors into slotted stators
H02K 3/26 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
H02K 3/28 - Layout of windings or of connections between windings
H02K 15/10 - Applying solid insulation to windings, stators or rotors, e.g. applying insulating tapes
H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
An electrical pump or generator apparatus (10) comprises a sealed housing (11) having fluid inlet and outlet ports (17, 15) and an impeller (12) rotatably mounted inside a cavity of the housing (11), the impeller (12) being mounted on a shaft for rotation about an axis, the shaft being confined inside the sealed housing (11). An electric machine of the pump (10) has a stator (20) disposed outside the housing (11) and a rotor (29) sealingly disposed inside the housing (11). In use a rotating magnetic field extends through a boundary wall (14) of the housing (11) to magnetically couple the stator (20) and rotor (29) on opposite sides of thereof. The need for a shaft seal is thus avoided and the apparatus is more compact than conventional pumps and generators.
F03B 3/10 - Machines or engines of reaction typeParts or details peculiar thereto characterised by having means for functioning alternatively as pumps or turbines
F04D 13/02 - Units comprising pumps and their driving means
F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven
A method of forming an electrical motor, generator or other electromagnetic device by 3-D printing, wherein layers e.g. 24c - 24s are successively deposited which comprise conductive regions and regions of a laminated, core, yoke or other former (11), so as to build up a plurality of conductors (12) extending inside spaces (26) in the former (11). The conductors (12) are interconnected at their ends to form a winding-like structure in or around the former (11) or a part thereof. The method enables each space (26) available in the former (11) to be filled with conductors (12), thereby maximising the efficiency of the device.
An electrical machine comprises a stator (11) having a plurality of windings (25) and a rotor (19) having a plurality of permanent magnets (26) arranged to rotate around the windings (25), the magnets (25) being mounted to an outer portion (23) of a rotor body (20), the rotor body (20) further having an inner hub portion (21) and a plurality of circumferentially-spaced arms (22) which extend radially from the hub portion (21) to the outer portion (23) of the body (20), at least one of the arms (22) comprising a vane (24) which causes an axial airflow as the rotor rotates.The axial airflow flows over the windings (25) and helps to prevent overheating without the need for any additional cooling. Since the cooling is conveniently provided by part of the rotor, the machine the machine is simple and compact.
H02K 1/2789 - Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 5/26 - Means for adjusting casings relative to their supports
H02K 9/06 - Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
H02K 21/22 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
11.
MAGNETIC GEARING OF PERMANENT MAGNET BRUSHLESS MOTORS
A permanent magnet brushless 3-phase motor comprises windings R, Y, B, each divided into a plurality of sections 1-5 and switch means S1-S12 for selectively connecting the section of the respective winding e.g. R in series and/or parallel with all other sections of that winding R. Control means are provided for actuating the switch means S1-S12 to connect the winding sections 1-5 in different configurations whilst the motor is running to alter the speed/torque characteristics of the motor.
patents
