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WO/2004/070913A2 |
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a DC motor mode or an AC generator mode. The machine includes a main stator that is selectively configurable as a multi-pole AC stator a...
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WO/2004/068696A2 |
A control system for a multiphase permanent magnet motor having a controller for producing a control signal to energize each phase winding. The controller includes a current value calculator for determining a value of phase current advan...
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WO/2004/062069A1 |
An electric motor (10) which includes a housing which has first and second opposed sides (24, 26), rotor (14) which is formed from a settable material and which is mounted for rotation inside the housing, a plurality of windings which ar...
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WO/2004/055956A2 |
A stator assembly (30) for an electric motor includes a stator housing (32), an expandable flux ring (34) inserted into the stator housing and a plurality of magnets (36) on an inner surface of the flux ring. Overmold material (84) is mo...
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WO/2004/040741A1 |
The invention relates to a stator for an electric machine, in particular to a direct current motor which contains a laminated core (34) provided with at least two stator poles (32) and at least two permanent magnets (33) associated to on...
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WO/2004/036722A1 |
The invention concerns a direct current engine (30) comprising a rotor (11) mounted rotatable about an axis (29) in a housing (16) and at least one winding (13) which is fed with direct current from outside, in alternating directions, by...
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WO/2004/034555A1 |
The invention relates to a sensor assembly for detecting rotation-related variables of a motor, in particular a windscreen-wiper motor, comprising a stationary Hall sensor. According to the invention, the motor is controlled or regulated...
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WO/2004/030203A1 |
A rotation device rotates a rotor iron core (5) having a rotor winding (4) together with a commutator (8) with respect to a fixed iron core (2) having a field winding (1) and being excited. The rotation device includes a brush (12) in co...
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WO/2004/030188A1 |
The invention concerns a motor (10) comprising: a coil (12), a motor shaft (14) driven in rotation by a supply current circulating in the winding (12), the supply current varying in accordance with the torque supplied by the motor shaft ...
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WO/2004/021545A1 |
The invention relates to a fixing device which is used to fix a component (4; 15) to a brush carrier (1) for an electric machine. The fixing arrangement is integral with the brush carrier (1) and has at least one tapered area (7; 25, 26)...
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WO/2003/098780A2 |
The invention concerns a motor-reduction gear unit (10) comprising: an electric motor (11) driving a motor shaft in rotation, a magnet (24) on the motor shaft, a Hall-effect sensor (14) proximate the magnet (24). The invention also conce...
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WO/2003/092021A1 |
A method for preparing a flexible magnet which comprises a step of subjecting a compound comprising a magnet powder and a novel flexible thermosetting resin composition comprising a thermosetting resin and a thermoplastic resin or the li...
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WO/2003/091737A1 |
The invention relates to a method and a device for determining the rotational speed and/or rotational direction and/or the position of a shaft in an electric motor. The invention is characterised in that a magnetic field generator is cro...
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WO/2003/088456A1 |
The fuel cell powered electrical motor comprises an electrical motor and a plurality of fuel cell stacks. The electrical motor includes a shaft assembly, a stator encircling the shaft assembly, a rotor encircling the stator, a flywheel l...
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WO/2003/069764A1 |
The present invention relates to a kind of high efficiency DC motor which is composed of a control module and a motor with a interior magnet. The said motor with a interior magnet is manufactured in such a way that a shaft is past throug...
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WO/2003/067742A1 |
The invention relates to a securing device for securing an annular magnet (2) to a rotor shaft (3) of an electric machine. Said annular magnet (2) is used in order to determine the speed of the rotor shaft and/or the rotational direction...
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WO/2003/067741A1 |
Disclosed is a rotor for an electric machine, particularly a DC motor, comprising a commutator (22) carried by a rotor shaft (23) and a ring magnet (24) which is placed on the rotor shaft (23) in a rotationally fixed manner and scans the...
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WO/2003/055035A2 |
The invention relates to an electric motor and to a method for the production thereof. According to the invention, an electricmotor with improved electrical, magnetic and mechanical properties and especially mass-power ratio can be provi...
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WO/2003/055043A1 |
A small-motor mechanical encoder capable of acquiring a plurality of pulses per one motor turn, the pulses having a small variation of duty ratio with time. A rotary contact portion (12) is arranged on a rotor shaft (1) and a pair of bru...
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WO/2003/052287A2 |
A rotary drive mechanism is disclosed comprising a housing (10), a first motor (12) having a first rotor (38) and a first stator (32) connected to the housing and a second motor (50) having a second rotor (52) and a second stator (54) co...
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WO/2003/049254A1 |
A small-sized motor is made, and an arrangement is prepared for facilitating the mounting of the motor itself and ensuring the electric connections of conduction terminals. There is provided a terminal base of an insulating resin to be f...
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WO/2003/038974A1 |
The invention relates to an electric machine comprising a rotatable brush plate (10, 12) which is fixed in its end positions by means of at least one fixing unit (16, 18) acting in the circumferential direction (14). According to the inv...
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WO/2003/032469A2 |
Disclosed is an electric machine, especially a starter device for motor vehicles, comprising a stator (36) and a rotor (39). The rotor has a hollow shaft (63) with various shaft sections. The electric machine is characterized in that the...
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WO/2003/017450A1 |
A motor commutator 10 is equipped with a magnet 16 for inclusion in a sensor assembly for detecting and diagnosing motor inefficiencies and problems as well as in adjusting motor parameters to impact motor operation. The commutator compr...
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WO/2003/014546A1 |
A slow release inhibitor-generating device (10), including a pellet (16), for an IC engine (10b) having a cooling system (10a). The device (10) is installed in-line with a hose (23) of the cooling system (10a) for slowly releasing concen...
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WO/2003/007458A2 |
The invention relates to a collector motor (1) comprising a cylindrical housing (3), which is easy to mount and easily adapted to different outer supply connection configurations and/or to different components of the brush plate, said br...
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WO/2003/007460A1 |
The invention concerns a reversible polyphase rotating machine comprising a current supply device (3) for the windings (12-14) of the stator produced in the form of a mechanical static converter (2) adapted to be coupled to said shaft of...
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WO/2003/005529A2 |
An electric machine according to prior art comprises a rotor shaft which must be mounted as a separate component. The inventive electric machine (1) is designed with a housing (4) and a bearing arrangement (49) in such a way that a rotor...
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WO/2002/102534A2 |
A power tool has a motor with end caps (52,54) secured by cold forming to the motor. The end caps include bearings (56) retained in the end cap by deformation of the end cap. The motor includes an armature shaft (42) which is staked to r...
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WO/2002/093718A1 |
An electromagnetic motor has an outer housing and a shaft rotatably mounted in the housing to extend along the central axis and out through one end of the housing. A plurality of electromagnets are mounted in the housing at spaced interv...
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WO/2002/089294A1 |
A DC electric motor, wherein field magnets (26) and (27) are installed on the inner peripheral surface (28a) of a stator core (25) specifying a rotor through-hole (28), a plurality of recesses (31) opened to the rotor through-hole (28) a...
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WO/2002/080340A1 |
The invention relates to a multi-pole commutator motor (14) comprising at least four stator poles (16-19) and armature windings (31-42) that co-operate with said poles and that are respectively electrically connected to two commutator ba...
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WO/2002/080314A1 |
The invention relates to a commutator (22; 22a; 22b), for a multi-pole commutator motor (14), with at least four stator poles (16 - 19) and with armature windings (31 - 42), co-operating therewith, each electrically connected to two comm...
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WO/2002/075900A1 |
The invention relates to a stand for an electric motor, comprising permanent magnets, particularly for a starter in an internal combustion engine, consisting of a stack of circular steel sheets whose inner surface is associated with the ...
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WO/2002/075899A1 |
An actuating drive according to prior art comprises a plug contact arranged on a printed circuit board, and a brush holder which is not arranged on the printed circuit board, but is electrically connected thereto, the disadvantage of one...
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WO/2002/068235A2 |
A cylindrical magnet ring assembly having a cylinder magnet flux ring (102) formed with a plurality of inwardly projecting anchors (108); a plurality of permanent magnets (104), wherein the magnet can be formed with step portions (112) i...
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WO/2002/064269A1 |
A small-sized vibrating motor, comprising a cup-shaped external case (15) having a rise tube (15b) installed at the center of a closed face (15c), wherein a stator and a rotor are stored in the external case (15) from one shaft end of a ...
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WO/2002/065624A1 |
A motor and fan structure 10 includes direct current motor assembly 18 having a stator assembly 20 including a flux plate 22 and permanent magnet structure 24 mounted on the flux plate 22. The flux plate 22 defines one end of the motor a...
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WO/2002/060035A1 |
The present invention discloses a generator (1) able to generate either unidirectional current or bi-directional current. A rotatable disc (7) has a conductive track (9) and a ferromagnetic bridge (8). Brushes (12, 13) switchingly open c...
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WO/2002/050618A2 |
A power generation system is disclosed having several embodiments such as in one embodiment, the power generation system includes a fuel source to provide fuel, a turbogenerator (200), coupled to the fuel source, to generate AC power, an...
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WO/2002/049191A2 |
A motor includes a cylindrical frame (1) made of ferromagnetic material, a pipe (2) fitted in and disposed within the frame concentrically, a sintered bearing (7) press-fitted into the pipe, a cylindrical magnet (4) fixed on an outer wal...
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WO/2002/039564A2 |
An arc length-contacting with a commutator-of two brushes in a rotational direction of a motor is defined as not more than 5% of an outer rim length of the commutator, i.e., not more than $g(p)x/20, where A is an outside diameter of the ...
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WO/2002/023710A1 |
Disclosed is a pole-change type motor that provides a variable-speed (two-pole or four-pole type) operation system capable of reducing the load of the motor of the normal operation system and improving the cooling efficiency. In case of ...
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WO/2002/021665A2 |
Structures of direct current motors or ac commutator (Universal) motors which use a concentrated winding on the rotor with coils wound around the teeth. The number of commutator segments is higher than the number of rotor teeth. Several ...
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WO/2002/021667A1 |
The invention relates to an electric drive system, especially for a fan of a motor vehicle, comprising an electric drive motor and an electronic control unit for controlling the drive motor. Said drive motor comprises a commutator and as...
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WO/2002/019500A1 |
A component for an electrical motor, comprising at least one electrical conductor and at least one element for electrical signal processing and supply, is produced according to conventional means, by producing the component and then appl...
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WO/2002/005409A1 |
An electric motor with two sets of stator coils (51, 53, 55 and 52, 54, 56), where the coils in each set are coupled in a star configuration. The motor has two sets of contactors with two rotor brushes. The electric current path always c...
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WO/2002/003531A1 |
The invention relates to an electric motor comprising a shaft (1; 10). Said shaft has a commutator (2; 20) and a magnetic element (3; 30), whose speed and/or angular position is detected by a sensor (4; 40). The invention is characterise...
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WO/2002/003528A2 |
A flux ring for a motor of a power tool has an annular housing which fits inside the motor can of the motor. At least one magnet is on the ring. The at least one magnet includes a portion formed from an isotropic magnetic material and a ...
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WO/2002/000080A1 |
In a hand mixer (1) having two mains terminals (10, 11) and having interference suppression means (16) for a motor (27) and having a switching means configuration (130) which includes speed switching means (60) for switching the speed of...
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