Motor Excellence LLC

Electric Torque Machines Inc.

Other

Southwest Windpower, Inc.

Moog Gmbh

Xzeres Corp.

Planet Rider LLC

Elemental Motors, LLC

David G Calley

Thomas F Janecek

John Dyer

Daniel S Cole

Tyler Kenneth Williams

Steve Purcell

J Scott Reynolds

Harrison Marden Knowler

Kyril Calsoyds

An electric machine, which may operate as an electric motor or generator, that address performance and manufacturing shortcomings in various motor design approaches particularly transverse flux, axial and radial flux motors with higher torque, higher RPM, and lower core losses and lower cogging. An exemplary electric machine incorporates shape monolithic components such as the armature teeth or connector ring, armature ring, concentrator teeth or concentrator ring formed by Soft metal Composite (SMC). Magnets may be configured between the concentrator teeth to form a magnet ring having a plurality of magnetic poles. The armature flux paths may be shared between phases. The air gaps may be axial and extend between armature teeth and concentrator teeth and the magnetic poles configured between the concentrator teeth. The armature, concentrator teeth and magnetic poles may extend radially and alternate along the axial axis of the electric machine, producing axial and/or radial airgaps.

Electrical machine having shaped soft metal composite components with axial and radial airgaps

A human power conversion system incorporates two or more electric machines to aid in the powering of a vehicle through energy conversion. A first electric machine is coupled with the human powered input and acts as a generator when a human power input is not sufficient to produce electrical power that is provided to a second electric machine that propels the vehicle. The vehicle may be a bicycle and the first electric machine may be coupled to the crank. A bi-coupled electric machine including the first and second electric machines with a common rotor or stator may be employed and coupled to the crank and/or the driven wheel. Power produced by the first electric machine may be provided directly to the second machine or may be stored in a battery and used to propel the vehicle or power other electronic components.

Gearless power conversion system employing two electric machines

A stator made from a ribbon of metal having multiple layers of slit metal, and motors made therefrom are described. A ribbon having multiple layers of metal is formed into a stator such as by flattening or pleating the ribbon to form each pole of a stator having a plurality of stator teeth, or poles. The stator formed from the metal ribbon may be configured into any suitable type of motor, such as an axial transverse flu motor. A magnetic flu return may also be made out of metal ribbon.

Metal ribbon stator and motor comprising same

A stator made from a ribbon of metal having multiple layers of slit metal, and motors made therefrom are described. A ribbon having multiple layers of metal is formed into a stator such as by flattening or pleating the ribbon to form each pole of a stator having a plurality of stator teeth, or poles. The stator formed from the metal ribbon may be configured into any suitable type of motor, such as an axial transverse flux motor. A magnetic flux return may also be made out of metal ribbon.

Control features for a wind turbine that control the turbine over a range of wind speeds and under triggering conditions with reduced noise, cost, and reliability issues associated with other such controls. Control is accomplished via control electronics, which adjust the torque produced by the electrical output generation device (e.g., alternator) within the wind turbine. During normal operation, torque is adjusted for optimum aerodynamic performance and maximum output of power. In winds above rated power, the control circuit regulates torque to lower aerodynamic performance, as necessary to maintain desired power level output. In triggering conditions, such as during simultaneous control circuit failure and loss of some portion of the electrical output generation device in extreme winds, wind turbine control is accomplished by increasing torque (e.g., via a separate controller) from the electrical output generation device via shorting of windings, so as to cause retardation of blade rotation.

Stall controller and triggering condition control features for a wind turbine

An electrical machine stator assembly comprises: an electroconductive coil arranged circumferentially with respect to the rotational axis; a plurality of pairs of side lamination assemblies arranged circumferentially with respect to the rotational axis; a plurality of pairs of switch lamination assemblies arranged circumferentially with respect to the rotational axis and positioned adjacent ends of side lamination assemblies proximal the rotor; and at least one tooth associated with each switch lamination assembly and proximal the rotor. Each switch lamination assembly comprises a first group of laminated materials aligned generally circumferentially and generally in a first direction with respect to the rotational axis, the first direction being one selected from the group consisting of the axial and radial directions with respect to the rotational axis. Each side lamination assembly comprises a second group of laminated materials aligned generally axially and generally radially with respect to the rotational axis.

Transverse and/or commutated flux systems having multidirectional laminations

Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to achieve increased efficiency, increased output torque, and/or reduced operating losses via use of laminated materials in connection with powdered metal materials. For example, stacks of laminated materials may be coupled to powdered metal teeth to form portions of a stator in an electrical machine.

Transverse and/or commutated flux systems having laminated and powdered metal portions

A three-wheeled vehicle having an arrangement of wheels with two forward wheels and one back wheel and a profile adjustment feature is described. The back wheel may be configured as the steering wheel, and in some cases is the only steering wheel. The two forward wheels are configured essentially parallel with each other and the back wheel is configured essentially centered between and back from the two forward wheels. This arrangement of the wheels provides for a stability that does not require a person to maintain balance to keep the vehicle in an upright position. The profile adjustment feature may automatically adjust the height of the vehicle as a function of vehicle speed. As the vehicle speeds up, the height may be reduce to provide a more stable vehicle that is turned more by tilting the vehicle than by turning the back wheel.

Three-wheeled vehicle

Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to achieve increased efficiency, increased output torque, and/or reduced operating losses via use of laminated materials, for example laminated materials configured with cuts and/or segmentations. Segmentations may also assist with manufacturability, mechanical retention of components, and the like.

Transverse and/or commutated flux systems having segmented stator laminations

Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to achieve reduced overall cogging torque via implementation of a sixth-phase offset. Individual cogging torque waveforms in the electrical machine may be evenly distributed across one-sixth of a voltage phase or other suitable spacing, resulting in a reduced magnitude and/or increased sinusoidality of the overall cogging torque waveform for the electrical machine.

Transverse and/or commutated flux systems having phase offset

An electrical machine comprising a rotor, a coil and a stator comprising a lamination stack coupled to a tooth, wherein the electrical machine is at least one of a transversal flux machine is described. The electrical machine may be a transversal flux machine such as a transverse or commutated flux machine. A lamination ring is described comprising a plurality of lamination stacks. A lamination stack may comprise a plurality of trenches configured to retain a plurality of teeth. The tooth may comprise a portion of the switching surface, and a portion of a lamination stack may extend to the surface of the tooth to make up a portion of the switching surface. The electrical machine may be configured with a constant air gap, wherein no more than 15% variability in the distance between the stator switching surface and the rotor switching surface.

Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to achieve increased efficiency, increased output torque, and/or reduced operating losses via use of extended magnets, overhung rotors, and/or stator tooth overlap. Extended magnets may reduce flux leakage between adjacent flux concentrators. Overhung rotors may reduce flux leakage, and may also facilitate voltage balancing in polyphase devices. Stator tooth overlap may reduce hysteresis losses, for example losses in flux concentrating portions of an electrical machine.

Transverse and/or commutated flux systems configured to provide reduced flux leakage, hysteresis loss reduction, and phase matching

Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to be coupled to an electric bicycle or other light electric vehicle. Certain exemplary electrical machines may be configured with a high torque density and/or lower operating losses, providing improved operational characteristics to an e-bike. Moreover, certain exemplary electrical machines may replace a gear cassette on a bicycle, allowing conversion of the bicycle from manual to electric operation.

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Flagstaff, AZ, United States of America

David G Calley