Patents by Inventor Gert Wolf

Gert Wolf has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10263483
    Abstract: The invention relates to a stator winding for a transversal flow machine, the stator winding (98) being embodied as a cord (244) and said cord (244) having a plurality of individual wires (242). Said stator winding (98) is embodied as a coil with several windings (245), characterized in that one or more windings (245) are layered in the axial direction or radial direction.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: April 16, 2019
    Assignee: SEG Automotive Germany GmbH
    Inventors: Gert Wolf, Gerlinde Weber, Roberto Carlos Retana Hernandez
  • Patent number: 9882458
    Abstract: Method for producing a stator winding (18) of an electric machine (10), in particular an AC generator, wherein the stator winding (18) has at least n phase windings (120, 121, 122, 123, 124), and one phase winding (120, 121, 122, 123, 124) has a plurality of directly successive wound coils (82) with coil sides (88) and coil side connectors (91), wherein the coils (82) are divided into first coils (82.1) and second coils (82.2), with a forming tool (100), in which slots (105, 106; 105?, 106?) are provided which are suitable for accommodating the coils (82), wherein a first coil (82.1) is arranged in a slot (105; 105?), and a second coil (82.2) is arranged in another slot (105; 105?), characterized in that n?1 slots (105, 106; 105?, 106?) are arranged between the first coil (82.1) and the second coil (82.2).
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: January 30, 2018
    Assignee: SEG Automotive Germany GmbH
    Inventors: Gert Wolf, Klaus Herbold, Gerlinde Weber, Christoph Schwarzkopf, Eberhard Rau, Alexander Mueller, Helmut Kreuzer, Kurt Reutlinger
  • Patent number: 9564791
    Abstract: Method for producing a stator winding (18) of an electric machine (10), in particular an AC generator, wherein the stator winding (18) has at least n phase windings (120, 121, 122, 123, 124), and one phase winding (120, 121, 122, 123, 124) has a plurality of successive wound coils (82) with coil sides (88) and coil side connectors (91), wherein the coils (82) are divided into first coils (82.1) and second coils (82.2), with a forming tool (100), in which slots (105, 106) are provided which are suitable for accommodating the coils (82), wherein a first coil (82.1) is arranged in a slot (105), and a second coil (82.2) is arranged in the same slot (105).
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: February 7, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Gert Wolf, Klaus Herbold, Gerlinde Weber, Christoph Schwarzkopf, Eberhard Rau, Alexander Mueller, Helmut Kreuzer, Kurt Reutlinger
  • Patent number: 9409484
    Abstract: An improved power supply unit for a vehicle electrical system of a motor vehicle, which has an a.c. generator, that provides a phase signal, having an excitation coil, a field regulator assigned to the excitation coil and a rectifier having rectifier elements for the rectification of the generator voltage supplied by the a.c. generator. The field regulator has a voltage detection range for the evaluation of the phase signal having a minimum value and a maximum value, the maximum value being adjusted to the nominal voltage of a power supply unit of the motor vehicle.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: August 9, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Gert Wolf, Stefan Einbock, Rolf Jaros, Helmut Suelzle
  • Publication number: 20160111972
    Abstract: A rectifier bridge circuit is described for rectifying the phase voltage generated by a generator, including a positive half-bridge having multiple rectifier elements and a negative half-bridge having multiple rectifier elements. The rectifier elements each have a controllable switch having a diode connected in parallel. A control circuit is provided for switching the switches on and off. The switch-on time tswitch on setpoint and/or the switch-off time tswitch off setpoint of the switch is/are computed based on a characteristic map or a mathematical function.
    Type: Application
    Filed: October 26, 2015
    Publication date: April 21, 2016
    Inventors: Gert WOLF, Paul MEHRINGER, Kurt REUTLINGER, Gerhard WALTER
  • Patent number: 9287757
    Abstract: The invention relates to a method for producing a stator winding (18) of an electric machine (10), in particular of an alternator, the stator winding (18) comprising at least n phase windings (120, 121, 122, 123, 124) and a phase winding (120, 121, 122, 123, 124) having several directly consecutively wound coils (82) having coil sides (88) and coil side connectors (91), the coils (82) being divided into first coils (82.1) and second coils (82.2), by means of a forming tool (100), in which grooves (105, 106; 105?, 106?) suitable for accommodating the coils (82) are provided, a first coil (82.1) being arranged in one groove (105; 105?) and a second coil (82.2) being arranged in another groove (105; 105?), characterized in that n?1 grooves (105, 106; 105?, 106?) are arranged between the first coil (82.1) and the second coil (82.2).
    Type: Grant
    Filed: May 31, 2010
    Date of Patent: March 15, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Gert Wolf, Eberhard Rau, Alexander Mueller, Kurt Reutlinger
  • Publication number: 20150364957
    Abstract: The invention relates to an electric machine (10) comprising a stator (16) that has a stator core (17). Said core has a substantially cylindrical opening (60) having a central axis (63), and the opening (60) accommodates a rotor (20). The stator core (17) has an axial length (L17a) and said core (17) holds a stator winding (18) together with the rotor (20) which has a rotational axis (66). The rotor (20) has an axial end face (69), on which a fan (30) with fan blades (72) is located and is non-rotatably connected to the rotor (20). The rotor (20) has an electromagnetically excitable path (75) having a pole shank (78), a respective pole plate (22, 23) adjoining each axially rotational end (80, 82) of said shank. Claw poles (24) having a north polarity extend from one pole plate (22) and claw poles (25) having a south polarity extend from the other pole plate (23), said claw poles (24) and (25) alternating between north and south polarities around the periphery of the rotor (20).
    Type: Application
    Filed: December 18, 2013
    Publication date: December 17, 2015
    Inventors: Alexander Shendi, Gerlinde Weber, Gert Wolf
  • Patent number: 9203327
    Abstract: A rectifier bridge circuit is described for rectifying the phase voltage generated by a generator, including a positive half-bridge having multiple rectifier elements and a negative half-bridge having multiple rectifier elements. The rectifier elements each have a controllable switch having a diode connected in parallel. A control circuit is provided for switching the switches on and off. The switch-on time tswitch on setpoint and/or the switch-off time tswitch off setpoint of the switch is/are computed based on a characteristic map or a mathematical function.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: December 1, 2015
    Assignee: ROBERT BOSCH GMBH
    Inventors: Gert Wolf, Paul Mehringer, Kurt Reutlinger, Gerhard Walter
  • Publication number: 20150333599
    Abstract: The invention relates to an electric machine (10) comprising a stator (16) that has a stator core (17). Said core has a substantially cylindrical opening (60) having a central axis (63), an internal diameter (D17i) and an external diameter (D17a) and the opening (60) accommodates a rotor (20). The stator core (17) has an axial length (L17a) and said core (17) holds a stator winding (18) together with the rotor (20) which has a rotational axis (66). The rotor (20) has an axial end face (69), on which a fan (30) with fan blades (72) is located and is non-rotatably connected to the rotor (20). The rotor (20) has an electromagnetically excitable path (75) having a pole shank (78), a respective pole plate (22, 23) adjoining each axially rotational end (80, 82) of said shank.
    Type: Application
    Filed: December 18, 2013
    Publication date: November 19, 2015
    Inventors: Gert Wolf, Gerlinde Weber, Alexander Shendi
  • Patent number: 8966742
    Abstract: A method of producing a stator winding for a stator of an electrical machine includes positioning a phase winding segment of the stator winding in a same plane in a serpentine manner in a first direction (X) and in a shape of a wave in a second direction (Y) transverse to the first direction. The method includes bending regions (A, B, C) of the phase winding segment toward one another along a folding line to form a lap winding including positioning regions (C) parallel to each other connected by regions (B) where the regions (B) cross the at least one folding line (108). The phase winding is formed with a continuous wire.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: March 3, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Gert Wolf, Thomas Berger
  • Patent number: 8969995
    Abstract: High-efficiency Schottky diodes (HED) and rectifier systems having such semiconductor devices are provided, which Schottky diodes (HED) are composed of at least one Schottky diode combined with an additional semiconductor element, e.g., with magnetoresistors (TMBS) or with pn diodes (TJBS), and have trenches. Such high-efficiency Schottky diodes make it possible to construct rectifiers which are suitable for higher temperatures and can therefore be used in motor vehicle generators, without particular cooling measures such as heat sinks being required.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: March 3, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Richard Spitz, Alfred Goerlach, Gert Wolf, Markus Mueller
  • Patent number: 8878413
    Abstract: An alternating-current generator, in particular a three-phase generator, for a motor vehicle, having a rotor including north and south poles, particularly having claw-pole fingers extending in the axial direction and alternating as north and south poles at the rotor's periphery, a stator having a magnetic core, especially laminated core, having slots and a stator winding disposed in the magnetic core's slots, the stator winding having winding overhangs that are coolable by an approximately radial air flow produced by at least one fan mounted at the rotor, the stator being situated opposite the rotor, and the stator and the rotor having defined positions relative to each other, the multiphase stator winding being made up of winding elements, at least one winding element having more than two sections inserted in slots, and at least one winding element having more than one reversal section which brings about a change in the radial position.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: November 4, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Gert Wolf, Thomas Berger, Eberhard Rau, Alexander Shendi, Helmut Kreuzer, Christoph Schwarzkopf
  • Publication number: 20140035427
    Abstract: Method for producing a stator winding (18) of an electric machine (10), in particular an AC generator, wherein the stator winding (18) has at least n phase windings (120, 121, 122, 123, 124), and one phase winding (120, 121, 122, 123, 124) has a plurality of directly successive wound coils (82) with coil sides (88) and coil side connectors (91), wherein the coils (82) are divided into first coils (82.1) and second coils (82.2), with a forming tool (100), in which slots (105, 106; 105?, 106?) are provided which are suitable for accommodating the coils (82), wherein a first coil (82.1) is arranged in a slot (105; 105?), and a second coil (82.2) is arranged in another slot (105; 105?), characterized in that n?1 slots (105, 106; 105?, 106?) are arranged between the first coil (82.1) and the second coil (82.2).
    Type: Application
    Filed: December 1, 2011
    Publication date: February 6, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventors: Gert Wolf, Klaus Herbold, Gerlinde Weber, Christoph Schwarzkopf, Eberhard Rau, Alexander Mueller, Helmut Kreuzer, Kurt Reutlinger
  • Publication number: 20130328435
    Abstract: Method for producing a stator winding (18) of an electric machine (10), in particular an AC generator, wherein the stator winding (18) has at least n phase windings (120, 121, 122, 123, 124), and one phase winding (120, 121, 122, 123, 124) has a plurality of successive wound coils (82) with coil sides (88) and coil side connectors (91), wherein the coils (82) are divided into first coils (82.1) and second coils (82.2), with a forming tool (100), in which slots (105, 106) are provided which are suitable for accommodating the coils (82), wherein a first coil (82.1) is arranged in a slot (105), and a second coil (82.2) is arranged in the same slot (105).
    Type: Application
    Filed: December 1, 2011
    Publication date: December 12, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Gert Wolf, Klaus Herbold, Gerlinde Weber, Christoph Schwarzkopf, Eberhard Rau, Alexander Mueller, Helmut Kreuzer, Kurt Reutlinger
  • Patent number: 8531074
    Abstract: An electric machine, in particular an electrically excited claw pole generator for a motor vehicle, is provided, having a stator winding, the phase terminals of which may be connected in the manner of a pentagram to a rectifier system. The stator winding has a five-phase design, phase terminals situated in adjacent slots being interconnected at least once. All of the phase terminals may be interconnected are situated in adjacent slots.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: September 10, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Gert Wolf, Norbert Pfitzke
  • Publication number: 20130214594
    Abstract: An improved power supply unit for a vehicle electrical system of a motor vehicle, which has an a.c. generator, that provides a phase signal, having an excitation coil, a field regulator assigned to the excitation coil and a rectifier having rectifier elements for the rectification of the generator voltage supplied by the a.c. generator. The field regulator has a voltage recording range for the evaluation of the phase signal having a minimum value and a maximum value, the maximum value being adjusted to the nominal voltage of a power supply unit of the motor vehicle.
    Type: Application
    Filed: July 13, 2011
    Publication date: August 22, 2013
    Inventors: Gert Wolf, Stefan Einbock, Rolf Jaros, Helmut Suelzle
  • Patent number: 8456052
    Abstract: Stator winding (10) for an electric machine, in particular for a generator of a motor vehicle, the stator winding (10) being embodied as an ordered stator winding (10), and the stator winding (10) being embodied in at least two axially spaced-apart levels (22, 24) in a winding head (13). The invention also relates to an electric machine and a method for manufacturing a stator winding (10) of an electric machine.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: June 4, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Gert Wolf
  • Publication number: 20130069472
    Abstract: The invention relates to a stator winding for a transversal flow machine, the stator winding (98) being embodied as a cord (244) and said cord (244) having a plurality of individual wires (245). Said stator winding (98) is embodied as a coil with several windings (245), characterised in that one or more windings (245) are layered in the axial direction or radial direction.
    Type: Application
    Filed: December 29, 2010
    Publication date: March 21, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Gert Wolf, Gerlinde Weber, Roberto Carlos Retana Hernandez
  • Patent number: 8368276
    Abstract: A polyphase electrical machine, in particular, a polyphase generator, includes a stator which features a core body having a circumferential slot pitch, and a winding configuration having a plurality of windings. It is provided that each winding and each slot of the group of slots that extends over one pole pitch is assigned to one of the phases, and the windings have winding sections that lie in assigned slots and between which, in each case, a winding-head connection is formed, the winding-head connections of different windings being disposed radially in layers relative to each other, and the number of phases being five. A method for producing a polyphase electrical machine is also provided.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: February 5, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Gert Wolf, Norbert Pfitzke, Thomas Berger, Eberhard Rau, Alexander Shendi
  • Patent number: 8354770
    Abstract: An alternator for motor vehicles, having a rotor, whose poles are developed as claw-poles. In order to improve the design options of the stator of the machine, its multiphase winding is developed as a fractional-slot winding, whereby, in particular with respect to the selection of the number of slots, many additional options are created, by which both the production is made clearly simpler and less costly and, at the same time, the electrical properties are able to be improved.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: January 15, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Gert Wolf, Alexander Shendi, Kurt Reutlinger