Wind generator (100) having a horizontal axis, installed in electric transportation means that can be of different types, as: car vehicles, motor vehicles, rail vehicles, water vehicles and air vehicles; said wind generator (100) comprising: —an air conveyor, called shell (101), having a cylindrical shape that is empty inside, having some openings on the outer surface, so called oval-shaped nozzles (104a, 104b, . . . ); —a horizontal wind turbine (107), comprising a rotary group of wind blades (112a, 112b, . . . ) fixed to a union ogive (116); —a transmission axis (109), being rotating and horizontal, where said turbine (107) is installed with its respective ogive (116) placed at the front part of said axis (109) and where an electric generator (102) is installed at the rear part of said axis (109), through a rotary element of said electric generator (102), so that a rotation of turbine (107) is transmitted, through a rotation of axis (109), to the rotary element of the electric generator (102); —said electric generator (102), comprising said rotary element and a fixed element, that is connected to the wind turbine (107) through the transmission axis (109); the electric generator (102) is further connected, by using electric cables (105), to some external electric accumulators; —at least two ball bearings (108, 111) anchoring, through connection elements, said rotary transmission axis (109) together either with the wind turbine (107) and the electric generator (102), in a stable position inside said shell (101), at the same time allowing the rotary motion of said rotating axis (109) on itself; —a cover (103) closing the rear part of said shell (101); —at least two supporting elements (106, 110) placed on the outer surface of said shell (101), in order to achieve an anchorage of the wind generator (100) to the transportation means on which it is installed, so that an air flow coming from the front part of said wind generator (100), having impact on said blades (112a, 112b, . . . ), forces said transmission axis (109) to a rotary motion and therefore forces the rotary element of the electric generator (102) to a rotary motion, generating therefore electric energy that can be immediately transmitted to an electric engine and/or other devices belonging to the transportation means, otherwise the electric energy can be saved into sa

An electric motor includes a rotor mounted on a shaft, a stator arranged around the rotor, and front and rear bearings connected to each other by an attachment component. The front and rear bearings form an internal cavity housing the rotor and the stator, characterized in that the electric motor further includes a bell-shaped thermal insulation cover completely covering the rear bearing and a portion of the front bearing, extending axially from an end face of the front bearing, the thermal insulation cover forming, with the front bearing, at least one inner fluid circulation channel inside which a coolant flows.

An actuator for generating vibration, including a shaft; a middle supporter having a fitting portion fitted into an upper portion of the shaft and a support portion below the fitting portion to form a first space where a lower portion of the shaft is exposed; a circuit board having a driving coil and a hollow formed through the middle supporter; a housing having an inner space that accommodates the middle supporter and the circuit board so the circuit board is fixed thereto; a first yoke plate having a first magnet installed to face an upper surface of the driving coil and coupled to an upper portion of the middle supporter; a second yoke plate having a second magnet installed to face a lower surface of the driving coil and coupled to a lower portion of the middle supporter; and a weight installed to at least one of the yoke plates.

Provided for the purposes of further improved precision of a high-precision machine tool (100) are at least one linear drive- and guide-bearing (1) having at least one linear motor (27), which has at least one magnet (15) arranged on one of the machine components (5) and at least one coil (25) arranged on the other machine component (10) and operatively connected to the at least one magnet (15), wherein the at least one magnet (15) and the at least one coil (25) are configured to exert an opposing attractive force and to perform an at least temporarily relative movement in relation to one another; at least one hydrostatic fluid bearing (30-1, 30-3) arranged on one of the two machine components (10) and operatively connected to the other machine component (5), wherein the hydrostatic fluid bearing (30-1, 30-3) exerts a repulsive force opposite to the attractive force; and a first bearing gap (H1), formed between the two machine components (5, 10), the height of which is greater than 0 μm and less than or equal to 10 μm.

Provided for the purposes of further improved precision of a high-precision machine tool (100) are at least one linear drive- and guide-bearing (1) having at least one linear motor (27), which has at least one magnet (15) arranged on one of the machine components (5) and at least one coil (25) arranged on the other machine component (10) and operatively connected to the at least one magnet (15), wherein the at least one magnet (15) and the at least one coil (25) are configured to exert an opposing attractive force and to perform an at least temporarily relative movement in relation to one another; at least one hydrostatic fluid bearing (30-1, 30-3) arranged on one of the two machine components (10) and operatively connected to the other machine component (5), wherein the hydrostatic fluid bearing (30-1, 30-3) exerts a repulsive force opposite to the attractive force; and a first bearing gap (H1), formed between the two machine components (5, 10), the height of which is greater than 0 μm and less than or equal to 10 μm.

An arrangement including a transmission and a generator is disclosed. The generator includes a generator rotor being non-rotatably connected to an output shaft of the transmission or configured to be connectable to the output shaft of the transmission. An assembly bearing that supports the generator rotor in the output shaft is also disclosed.

A brushless DC motor (BLDC) includes a stator having a ring-shaped body with multiple stator posts extending axially outward from the ring-shaped body. A plurality of stator windings are each wound about a corresponding one of the stator posts. A rotor support structure is positioned radially inward of the multiple stator posts. A rotor including a shaft is received in the rotor support structure. A first rotor disk is fixed to a first end of the shaft. At least a first set of magnets is disposed about the rotor disk and positioned radially adjacent to the stator posts such that the first set of magnets and the stator windings define a first radial flux flowpath. A second set of magnets positioned relative to the stator posts in one of an axial adjacency or a radial adjacency such that a second flux flowpath is defined.

A motor includes a shaft, a base, a stator, a rotor, a bearing, and at least one or more temperature adjusters. The shaft extends along a central axis extending in an axial direction. The base extends in a radial direction from an end of the shaft in an axially one direction. The stator has an annular shape surrounding the shaft, and is disposed further in an axially other direction than the base. The rotor is rotatable about the central axis. The bearing rotatably supports the rotor. The temperature adjuster adjusts an ambient temperature of the bearing. The shaft has a shaft hole recessed in the axial direction from an axial end of the shaft. The temperature adjuster is disposed in the shaft hole and overlaps at least a portion of the bearing as viewed in the radial direction.

A magnetic levitation motor has a housing, a plurality of stators and a plurality of rotors. The housing has a shaft hole there through, the shaft hole accepting a bearing, the bearing rotatably engages with a rotating shaft that extends from two ends of the housing, and a plurality of fastening portions are disposed on the rotating shaft. A main body section is disposed between at least two of the fastening portions, and the housing having a plurality of dividers to define a plurality of containing spaces. The stator has a fixing disk wrapped with a coil and having a through aperture the fixing disk, and the fixing disk has a plurality of first magnets circularly and radially arranged. The rotor has a moving disk with a toothed hole at a center the moving disk, and the moving disk having a plurality of second magnets arranged circularly and radially.

The present invention may provide a motor comprising: a housing; a stator disposed inside the housing; a rotor disposed inside the stator; and a shaft coupled to the rotor. The housing includes a first housing and a second housing. The first housing includes a first side wall having a first radius and a second side wall having a second radius smaller than the first radius, and the second housing includes a third side wall contacting the first side wall and a fourth side wall contacting the second side wall. The outer surface of the first side wall includes a first coupling means, and the inner surface of the third side wall includes a second coupling means coupled to the first coupling means.