The present invention relates to an electrical aircraft engine. The engine includes a stator with windings for generating a rotating magnetic field. The engine further includes a rotor for rotating inside or outside the stator. The rotor has a fan or propeller including thrust blades. The fan or propeller defines a closed-loop conductor. Advantageously, the thrust blades may generate direct thrust by moving fluid (i.e. gas or liquid), instead of driving a drive shaft, in turn, coupled to thrust blades.

An electrical induction motor may include a stator with a plurality of circumferentially spaced slots, and N windings installed in the slots and each configured to be connected between two current inputs from an inverter, with a phase angle difference between the two current inputs equal to H×180°/N, wherein H=a harmonic of a current drive waveform supplied by the inverter to the windings. Each of the N windings may be installed in the plurality of slots to form a top layer of winding and a bottom layer of winding, with a phase angle of the current flowing through the top layer of winding in each slot being aligned with a phase angle of current flowing through the bottom layer of winding at a first, higher harmonic, and out of alignment at a second, lower harmonic.

An electrical induction motor may include a stator with a plurality of circumferentially spaced slots, and N windings installed in the slots and each configured to be connected between two current inputs from an inverter, with a phase angle difference between the two current inputs equal to H×180°/N, wherein H=a harmonic of a current drive waveform supplied by the inverter to the windings. Each of the N windings may be installed in the plurality of slots to form a top layer of winding and a bottom layer of winding, with a phase angle of the current flowing through the top layer of winding in each slot being aligned with a phase angle of current flowing through the bottom layer of winding at a first, higher harmonic, and out of alignment at a second, lower harmonic.

The invention relates to an electric circuit (1) for an electric motor (2), the electric motor (2) having at least one stator (3) with at least three coils (4, 5, 6) and a rotor (7) with at least two magnetic poles (8, 9); the motor (2) being operable by means of the electric circuit (1) at least in the following two states (10, 11): a) in a first state (10), the coils (4, 5, 6) can each be energized with different currents of a three-phase system (12) and the rotor (7) can be set into rotation about an axis of rotation (13); b) in a second state (11), the coils (4, 5, 6) can be energized with an in-phase alternating current (14).

The invention relates to an electric circuit (1) for an electric motor (2), the electric motor (2) having at least one stator (3) with at least three coils (4, 5, 6) and a rotor (7) with at least two magnetic poles (8, 9); the motor (2) being operable by means of the electric circuit (1) at least in the following two states (10, 11): a) in a first state (10), the coils (4, 5, 6) can each be energized with different currents of a three-phase system (12) and the rotor (7) can be set into rotation about an axis of rotation (13); b) in a second state (11), the coils (4, 5, 6) can be energized with an in-phase alternating current (14).

The invention relates to an electric asynchronous machine (1), in particular an induction machine, comprising:—a cylindrical stator (2) with stator teeth (22) on a stator yoke (21), wherein a ratio between a yoke height (hy1) of the stator yoke (21) in the radial direction and a groove height (hn1) of the stator grooves (23) in the radial direction ranges from 1.75 to 2.5;—a cylindrical rotor (4) with poles (42) on a rotor yoke which are defined by short-circuit windings in a rotor body (41), wherein a ratio between the yoke height of the rotor body (41) in the radial direction and the groove height of the rotor grooves in the radial direction ranges from 2 to 2.75.

The invention relates to an electric asynchronous machine (1), in particular an induction machine, comprising:—a cylindrical stator (2) with stator teeth (22) on a stator yoke (21), wherein a ratio between a yoke height (hy1) of the stator yoke (21) in the radial direction and a groove height (hn1) of the stator grooves (23) in the radial direction ranges from 1.75 to 2.5;—a cylindrical rotor (4) with poles (42) on a rotor yoke which are defined by short-circuit windings in a rotor body (41), wherein a ratio between the yoke height of the rotor body (41) in the radial direction and the groove height of the rotor grooves in the radial direction ranges from 2 to 2.75.

A vehicle propulsion system includes an engine and a first electric machine each configured to selectively provide torque to propel the vehicle. The propulsion system also includes a second electric machine coupled to the engine and configured to start the engine from an inactive state. A controller is programmed to execute a first control algorithm while output speed of the second electric machine is less than a first speed threshold. The controller is also programmed to execute a second control algorithm while output speed of the second electric machine is greater than the first speed threshold and less than a second speed threshold.

Components for generating power using some mechanical gears combined with electric components are wired to generate electricity to power electric vehicles, including a 3-phase alternator, a combination of transformers, an extended shaft in union with the main shaft of the starter motor, a system of pulleys, and a rotating belt. Using a pattern of engineering to assemble these apparatuses and combining these tools with a source of electricity generate a high voltage of electricity that passes through wires that is decreased to a low voltage enables low current to be used to operate electric vehicles.

Components for generating power using some mechanical gears combined with electric components are wired to generate electricity to power electric vehicles, including a 3-phase alternator, a combination of transformers, an extended shaft in union with the main shaft of the starter motor, a system of pulleys, and a rotating belt. Using a pattern of engineering to assemble these apparatuses and combining these tools with a source of electricity generate a high voltage of electricity that passes through wires that is decreased to a low voltage enables low current to be used to operate electric vehicles.