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WO/1998/036485A1 |
A motor-driven aggregate (1) has a motor unit (2) and a working machine. The motor unit (2) has a rotor (7) with a motor shaft (6) for driving at least one working element (18). The invention essentially consists in that the rotor (7) is...
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WO/1998/023022A1 |
To reduce wear and tear of brushes (6;6) and to extend their useful working lives, it is possible to reduce sparking on the rear edge (6.2) of the brushes (6;6) by means of a commutating magnetic field (M), e.g. by an additional magnet (...
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WO/1998/015998A1 |
The invention relates to a device for supporting and electrically contacting brushes, which is used to produce a slipping electric contact to slip rings on a shaft of a current generator or an electric motor. The device has a support, wh...
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WO/1998/010506A1 |
Rotary electric machine comprising a stator with permanent magnets and a rotor having an iron core and a winding. The rotor winding comprises a number of discrete coils (11A-C) each being provided with an iron core (10A-C) and so arrange...
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WO/1998/006163A1 |
The invention concerns a direct current motor commutation device which is used to improve the ripple of the commutating current signal form (40, 50) in order to obtain data concerning the speed of rotation in a reliable and error-free ma...
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WO/1998/002952A1 |
The invention relates to a dc motor having a rotor (13) which is provided with permanent magnets and coupled to a driven shaft (9), having a stator (21) which has windings at least of one coil (19), and having a commutator device (31) wh...
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WO/1998/001936A1 |
A brushless electromagnetic motor-generator includes a rotor assembly; electrically conductive bearings disposed coaxially around opposite ends of the rotor assembly; mechanisms for electrically connecting the two rotating inner bearing ...
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WO/1997/037847A1 |
A conductive fiber brush including a brush stock (1) composed of plural conductive fibers or strands of fibers at least some of which may have plural bends along the length of the fibers or strands. The fibers may have a diameter less th...
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WO/1997/031420A1 |
A commutator for a D.C. generator and a D.C. motor equiped with a commutator type armature, comprising metal commutator segments (1), sliding electrodes (2) of metal in the same number as that of the commutator segments, three or four di...
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WO/1997/019502A1 |
The invention relates to a brush holder plate which is provided with pins which comprise a blade terminal (30) with an extension (31) connected thereto. The extension (31) of said pins is inserted into the brush holder plate which is pro...
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WO/1997/002642A1 |
An eddy current drive (711) has an electromagnet (15, 17) and an armature (19). Either one of the electromagnet or the armature is coupled to a motor shaft (31) so as to rotate therewith, while the other is coupled to a load portion (21)...
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WO/1997/001878A1 |
A brush holder embodies certain generic features that render it suitable for use in numerous brush card assemblies. The brush holder has sidewalls that provide guidance of an associated brush, and integral locators for locating an associ...
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WO/1997/001200A1 |
A grounding system for a motor comprising a conductive brush in resilient contact with a contamination-free conductive member removably secured onto a rotating part such as a motor shaft. The contacting surface is shielded from contamina...
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WO/1996/041410A1 |
In an ordinary DC motor in a windshield wiper, operating speed tends to increase as the motor brushes become seated. The invention counteracts this tendency by providing a brush geometry which causes the effective angular position of a b...
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WO/1996/038899A2 |
An armature finish lead is extended from the last coil around its armature shaft to a start/finish commutator tang in a direction opposite to the direction in which the other leads are extended around the armature shaft and the finish le...
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WO/1996/026526A1 |
Disclosed herein are several sliding contact materials of which compositions are AuAgCu, AuAgPdCu, PtAuAgCu, AgCuNi, AgPdCuNi and PtAgCuNi. The sliding contact material can be employed for forming a three-pole commutator which then may b...
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WO/1996/021260A1 |
The description relates to a carbon brush for an electric motor. Such carbon brushes must meet two requirements. Firstly, they must be as abrasion-resistant as possible and secondly as little noise as possible must be generated at the br...
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WO/1996/019662A1 |
Lower-layer coil ends (537) and upper-layer coil ends (534) forming the first and second connecting portions are held in abutment with the end face of an armature core (500) through insulators and, hence, the inertias of cylindrical comm...
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WO/1996/019030A1 |
A brush support plate (11) is proposed. Current for the brush (21) is supplied via the strip conductors (10, 11) which are almost completely embedded in the support plate material. Recesses (30, 31, 32, 33) allow the welding or soldering...
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WO/1996/019033A1 |
An electric machine, in particular a generator for vehicles, has a revolving rotor mounted in a stator housing and having an exciting winding (24) secured against rotation to the rotor shaft. The winding ends (26, 28) extend up to collec...
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WO/1996/016268A1 |
On the outer circumference of an armature core (520), there are arranged a stator core (558) forming a field pole and a stator coil (559) wound on the stator core (558). The stator coil (559) has its one end portion arranged in the space...
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WO/1996/016266A1 |
A stator core (558) constituting a stationary field system and a stator coil (559) wound around the stator core (558) are disposed on the outer circumference of an armature core (520). An end of this stator coil (559) is disposed on the ...
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WO/1996/014678A1 |
The invention relates to an arrangement for the transfer of electric current, a liquid medium and a gaseous medium between a section (1, 1') in a fixed position and a section (2) rotating in relation thereto, the arrangement for the tran...
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WO/1996/008058A1 |
An improved commutator anchoring system (100) and methods of manufacturing such a system are disclosed. The system includes a wound fibreglass or other ring (22) embedded in the internal core (18) of the commutator to reinforce the resul...
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WO/1996/007230A1 |
The invention concerns a brush-holder plate and an electric motor comprising this brush-holder plate. The brushes of an electric motor are frequently ready-mounted on a brush-holder plate. However, the problem of keeping the brushes in t...
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WO/1995/031849A1 |
A power control and commutation network for a brushless DC motor includes a first section (A1) proximate the motor and a second section (B1) remote from and connected to the first section by a pair of conductors (20, 21). Included in the...
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WO/1995/028029A1 |
Described is a simple current-carrying system for a carbon brush system consisting of four brushes. The current is supplied via two buses (1, 2) arranged in a plane, with flags (3, 4, 5, 6) that can buckle out of the plane of the buses. ...
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WO/1995/017779A2 |
An electrical machine, such as an electric motor, dynamo or alternator has a casing (26) with cooling vents (64) enabling cooling fluid (F) to flow into and out of the casing when the rotor (10) of the electrical machine rotates. The rot...
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WO/1995/014324A1 |
An armature for an electric motor with a shaft, a core stack mounted on the shaft, a commutator having a plurality of commutator segments and a plastic filling, and a wire winding looped around the core stack and bonded to the commutator...
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WO/1995/010867A1 |
A plurality of shaped flat plates with slots and teeth along one edge, capable of coincident superposition. Two such plates in juxtaposition, one inverted can pivot longitudinally to form symmetrical wedge shapes suitable for commutators...
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WO/1995/006965A1 |
A carbon brush for an electric motor is disclosed. Said carbon brushes (3) are guided in tubular brush-holders (2) and pressed against a collector. In the state of the art, such carbon brushes have a square cross-section and stand vertic...
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WO/1994/018726A1 |
The invention concerns reinforcing rings comprising a bearing ring (3) that is made of an insulating material which is compression proof even at high working temperatures and a metal clamping ring (4) into which the bearing ring is fitte...
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WO/1994/015382A1 |
An electric rotary machine (32) of the type having a commutator (36) and brushes (34, 34) comprising: a dielectric fluid (40) comprising a halogenated aliphatic hydrocarbon; and means for applying said dielectric fluid (40) continuously ...
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WO/1994/009550A1 |
When the number of risers (5) is, for example, 20, ten through holes (3c) are made in the boss (3a) of an armature core, and have a size large enough to view the backs of two adjacent risers through each hole (3c). After a sub-electrode ...
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WO/1994/005060A1 |
A brush holder (10) for electric motors fitted with a collector has a base plate (11) of an injection moulded, electrically insulating plastic in which there are apertures (26, 27) for electrical components and two opposite tubes (51, 52...
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WO/1993/019502A1 |
The method according to the invention provides for the assembly of a high current commutator and winding (11) to form an armature, and especially the connection of pairs of ends of conductors of the winding to the brush commutating segme...
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WO/1993/016284A1 |
The proposal is for an assembly for conveying a liquid medium, especially a heat carrier, in the cooling and heating circuit of a motor vehicle. The conveyor assembly has an electric drive motor (36) comprising a collector (52) and brush...
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WO/1993/015546A1 |
An electric motor to drive the road wheel of a wheelchair has a stator (6) and a rotor (12, 13), both of which are arranged axially symmetrically around a motor shaft (1) and at least one of which is stored by an electric power store to ...
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WO/1993/004835A1 |
A dynamo assembly (1) comprising a stator assembly (2) and rotor assembly (3) as shown. The preferred rotor assembly (3) comprises two end caps (16 and 17), a single wire strand (22), a collector ring assembly (23), and a plurality of la...
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WO/1992/010872A1 |
A brush holder plate assembly comprising a brush holder plate (11) fabricated from electrically insulating thermoplastic material and having a plurality of sets of spaced-apart, parallel, raised guiding and support rails (12, 12a) integr...
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WO/1992/009447A1 |
A hydraulic drive system for powering a vehicle comprising: a fluid circuit; a battery driven motorised pump operable to circulate fluid around said fluid circuit; a turbine-generator operably associated with said fluid circuit to genera...
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WO/1992/005023A1 |
A method of fabricating articles of manufacture of a composite material by curing a curable matrix-forming binder in a compound material under simultaneous application of pressure and ultrasonic energy; an apparatus to be used in carryin...
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WO/1992/004761A1 |
A commutator arrangement includes a commutator member (11) rotatably mounted on a support (13) and including a plurality of circumferentially adjacent contact pads (17) that are mechanically connected with one another and electrically se...
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WO/1992/002070A1 |
Proposed is an electrical machine, in particular an electrical motor, which has a rotor consisting of a hollow cylindrical armature core (11) carrying an armature (13). The stator of the electrical machine has magnet poles (23, 24) stagg...
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WO/1992/001321A1 |
The invention relates to a plane collector for an electrical machine with radial commutator blades arranged on an electrically insulating carrier. On the electrically insulating carrier (10) is fitted a solderable or weldable plate (11),...
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WO/1991/015050A1 |
The short-circuiting and brush-raising device (13) described includes a rotatable actuating ring (14) with brush-actuating rods (28) which, via levers (31), cause the brushes (15) to be raised after the slip rings (3, 3a) have been short...
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WO/1991/011837A1 |
A commutator (1) for electric motors comprises a plurality of segments (2) which are welded to the ends (4, 5) of the end turns of a round wire rotor winding of the machine. At least two end turns in each segment are arranged one above t...
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WO/1991/008601A1 |
A commutator (10) for a motor is disclosed which includes a plurality of commutator segments (12) arranged in a cylindric array (14) such that the array has a cylindrical outer periphery (20) and two axial ends. An annular recess (26, 28...
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WO/1991/006146A2 |
A structured product family of electric motor models that utilize a maximized number of common component parts in a maximum number of different applications and methods for assembling various motor sub-components is disclosed. The motor ...
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WO/1990/007210A1 |
A commutator for electrical machines has a segment carrier (1) made of an electrically conductive material and an outer casing (3) with longitudinal grooves (4) in which the segments (7) are inserted. An insulation (5) is placed between ...
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