Patent application number | Description | Published |
20100289376 | CARBON BRUSH SYSTEM FOR AN ELECTRICAL MACHINE - A carbon brush system for an electrical machine, having at least two carbon brushes, which are situated axially adjacent to one another and cooperate with a rotatable countercontact system. The carbon brushes are implemented as directly or indirectly mutually axially supporting carbon brushes. | 11-18-2010 |
20110018386 | MULTILAYER BRUSH - A multilayer brush, which essentially contains a composite having a graphite component and having a copper component, and a layered structure, a first layer being furnished with a high copper component and a further layer being furnished with a comparatively low copper component. It is provided that the copper component of the first layer in comparison with the copper component of the second layer corresponds to a ratio of ≦3/2. | 01-27-2011 |
20110025063 | ELECTRICAL DRIVE MACHINE HAVING A STATOR AND A ROTOR - An electric drive machine having a stator and a rotor, the rotor carrying a rotor winding, in slots, which is able to be supplied with electric current by a power supply system made up of a commutator and sliding contacts, the sliding contacts pressing on the surface of the commutator having at least two pairs each made up of one positive sliding contact and one negative sliding contact, and in the case of at least one first pair of a positive sliding contact and a negative sliding contact, the positive sliding contact and the negative sliding contact being opposed at an angle γ, which deviates from 180°. | 02-03-2011 |
20110109192 | ELECTRIC MACHINE, IN PARTICULAR COMMUTATOR MACHINE - The invention relates to an electric machine, in particular a commutator machine ( | 05-12-2011 |
20110181148 | BRUSH DEVICE HAVING A SPRING, FOR AN ELECTRIC MACHINE - A brush device for an electric machine includes a brush holder, a brush which is accommodated therein and has an integrated stranded wire, and a first spring which prestresses the brush with respect to a commutator. At least one second spring is disposed parallel to the first spring, which prestresses the brush with respect to the commutator. | 07-28-2011 |
20110187225 | ELECTRIC MACHINE HAVING AT LEAST TWO PAIRS OF CARBON BRUSHES - An electric machine has at least two pairs of carbon brushes made up of one plus and one minus carbon brush, which interact with a commutator in order to supply current to the rotor, the carbon brushes being mounted with their brush holder on a brush plate via a mount, and the mounts on the brush plate lying across from each other at 180°. The holding part on at least one brush holder is offset from the center, in particular from the axis of symmetry of the brush holder, by an angle relative to the rotor axis so as to realize an asymmetrical placement of the carbon brush, the holding part on the other brush holders being disposed on their axes of symmetry. | 08-04-2011 |
20120025666 | BRUSH DEVICE HAVING A LITZ WIRE FOR AN ELECTRIC MACHINE - A brush device for an electric machine is described, having a brush mount that has a brush which is accommodated in it and having a first integrated litz wire, having a first spring, which prestresses the brush against a commutator. In order to create an E machine having an improved service life, at least one second litz wire is developed integrated into the brush. | 02-02-2012 |
20120228971 | ELECTRIC MOTOR, IN PARTICULAR A STARTER MOTOR FOR AN INTERNAL COMBUSTION ENGINE - The invention relates to an electric motor comprising an electric conductor for supplying current, connected to a contact piece which is in contact with a component of the electric motor. Said conductor has, in a central section, a rectangular cross-section. | 09-13-2012 |
20120262025 | Commutator for Power Transmission in an Electric Machine - A commutator for transmitting current in an electric machine is disclosed. The commutator includes an armature-side collector and at least one brush contacting the collector. At least one current-carrying component of the commutator is implemented as porous ceramic body having infiltrated metal. | 10-18-2012 |
20120313479 | METHOD FOR PRODUCING A CARBON BRUSH IN A COMMUTATOR - The invention relates to a method for producing a carbon brush in a commutator for transmitting current in an electric motor, wherein the carbon brush is subjected to an artificial aging process after being produced and prior to being installed in the commutator, wherein the carbon brush is stored at an increased temperature for a defined period of time. | 12-13-2012 |