Patents by Inventor Holger Schunk

Holger Schunk 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).

  • Publication number: 20220149678
    Abstract: A laminated core for a rotor and/or a stator of a rotating electric machine includes teeth arranged adjacent to one another in a peripheral direction of the laminated core and delimiting slots for accommodating an electrical conductor that forms a winding. A cover unit is arranged on a side of an air gap between the rotor and the stator and delimits the slots in the radial direction. The cover unit has in a region of a respective one of the slots at least two tapering regions which are spaced apart from one another in the peripheral direction of the laminated core, with a material of the cover unit being thinner in the tapering regions in a radial direction of the laminated core than in a region of the cover unit adjoining the tapering regions.
    Type: Application
    Filed: February 10, 2020
    Publication date: May 12, 2022
    Applicant: Siemens Aktiengesellschaft
    Inventor: HOLGER SCHUNK
  • Patent number: 11258315
    Abstract: An individual tooth segment includes a tooth head configured for connection in a form-fitting manner to a tooth head of a further individual tooth segment. The tooth head has a first flank formed on a left end of the tooth head as viewed in a radial direction and configured concavely with a first curvature, and a second flank formed on a right end of the tooth head as viewed in the radial direction and configured convexly with a second curvature. The tooth head has a center of area which is a center point of a circular arc of the second curvature of the second flank.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: February 22, 2022
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Holger Schunk
  • Patent number: 11223248
    Abstract: In a rotary dynamo-electric reluctance machine, a rotor includes regions of differing magnetic resistances. One region includes material of a first magnetic conductivity. Another region includes material of a second magnetic conductivity which is lower than the first magnetic conductivity. The region having the second magnetic conductivity includes permanent-magnetic material to increase a torque of the reluctance machine.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: January 11, 2022
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Holger Schunk
  • Publication number: 20210305857
    Abstract: An individual tooth segment includes a tooth head configured for connection in a form-fitting manner to a tooth head of a further individual tooth segment. The tooth head has a first flank formed on a left end of the tooth head as viewed in a radial direction and configured concavely with a first curvature, and a second flank formed on a right end of the tooth head as viewed in the radial direction and configured convexly with a second curvature. The tooth head has a center of area which is a center point of a circular arc of the second curvature of the second flank.
    Type: Application
    Filed: August 16, 2019
    Publication date: September 30, 2021
    Applicant: Siemens Aktiengesellschaft
    Inventor: HOLGER SCHUNK
  • Publication number: 20210194299
    Abstract: In a rotary dynamo-electric reluctance machine, a rotor includes regions of differing magnetic resistances. One region includes material of a first magnetic conductivity. Another region includes material of a second magnetic conductivity which is lower than the first magnetic conductivity. The region having the second magnetic conductivity includes permanent-magnetic material to increase a torque of the reluctance machine.
    Type: Application
    Filed: September 4, 2018
    Publication date: June 24, 2021
    Applicant: Siemens Aktiengesellschaft
    Inventor: Holger Schunk
  • Patent number: 9496779
    Abstract: A drive device includes a rotational drive device with a rotating stator and a rotating armature for displacing a shaft in a rotational movement and a linear drive device with a linear stator and a linear armature for displacing a shaft in a linear movement. The rotational drive device and the linear drive device are arranged axially one behind the other, with the rotating armature and the linear armature being connected to a respective shaft section. The shaft sections of the rotating armature and the linear armature are axially aligned and connected to each other in a rotationally fixed manner such that the shaft sections can move axially with respect to each other but they can only rotate together.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: November 15, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Daniel Mader, Holger Schunk, Rolf Vollmer
  • Publication number: 20130147285
    Abstract: A drive device includes a rotational drive device with a rotating stator and a rotating armature for displacing a shaft in a rotational movement and a linear drive device with a linear stator and a linear armature for displacing a shaft in a linear movement. The rotational drive device and the linear drive device are arranged axially one behind the other, with the rotating armature and the linear armature being connected to a respective shaft section. The shaft sections of the rotating armature and the linear armature are axially aligned and connected to each other in a rotationally fixed manner such that the shaft sections can move axially with respect to each other but they can only rotate together.
    Type: Application
    Filed: April 4, 2011
    Publication date: June 13, 2013
    Applicant: Siemens Aktiengesellschaft
    Inventors: Daniel Mader, Holger Schunk, Rolf Vollmer
  • Patent number: 8063517
    Abstract: The aim of the invention is to create a combined linear-rotary drive that has a compact, simple, and inexpensive design. Said aim is achieved by a combined drive comprising a linear driving device (3) and a rotary driving device (11), at least one of the two driving devices being provided with a hybrid reluctance motor. It is particularly advantageous to embody both driving devices as hybrid reluctance motors such that the rotor (4) can be produced at a low cost without permanent magnets in addition to ensuring that the drive has a very compact design.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: November 22, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Erich Bott, Matthias Braun, Detlef Potoradi, Holger Schunk, Rolf Vollmer
  • Patent number: 8026640
    Abstract: The invention relates to an electric machine which comprises a first machine part (30), comprising a stator element (31) and a rotor element (32) and being configured as a rotary actuator which interacts with a rotary movement of the rotor element (32). The electric machine (40) also comprises a second machine part (20), comprising a primary part (1) and a secondary part (2) and being configured as a linear actuator which interacts with a linear movement of the secondary part (2). The rotor element (32) of the first machine part (30) and the secondary part (2) of the second machine part (20) are interlinked. The secondary part (2) of the second machine part (20) can be rotated and is configured as an external rotor. Such a secondary part (2) allows to generate a higher power of a secondary machine part (20) acting as the linear motor. The secondary part (2) is mounted in the center thereof in relation to the primary part (1).
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: September 27, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Erich Bott, Rolf Vollmer, Matthias Braun, Holger Schunk
  • Patent number: 7977826
    Abstract: The permanently excited synchronous machine (1) includes a rotor (3) and a stand (2) which contains a three-branched winding system (8) which comprises tooth coils. The stand (2) has a total of three or six grooves (5) and a tooth (6, 7) is formed there between. A total of three tooth coils (9) are arranged in the grooves (5) and each coil is associated with one of the three winding phases. The number of user pole pairs (pN) is four or five. The rotor (3) has twice as many user pole pairs (pN) of permanent magnets (18) which are evenly distributed on the periphery.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: July 12, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rolf Vollmer, Holger Schunk, Erich Bott, Matthias Braun
  • Patent number: 7901127
    Abstract: The drive device (1) is intended for a machine for the plasticization and injection of synthetic material. It comprises a main drive (2) drivable in a first and a second direction of rotation and having a hollow shaft (6) rotatable about an axis of rotation (4). An axially bipartite inner reception region (7) having a first part region (8) and a second part region (9) is formed by the hollow shaft (6). Rotation transmission means (10, 14), arranged at least partially in the first part region (8), are provided for the transmission of a rotational movement of the hollow shaft (6) solely in a first direction of rotation to an extruder worm (16) rotatable about the axis of rotation (4).
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: March 8, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Axel Knauff, Holger Schunk
  • Publication number: 20100264770
    Abstract: A permanent-magnet synchronous machine for suppressing harmonics includes a stator and a rotor with permanent magnets. Each permanent magnet represents a magnetic pole and is, when viewed in the circumferential direction of the rotor, shaped as a parallelogram or an arrow. The pole coverage is less than one. The permanent magnets are staggered at a staggering angle, wherein the permanent magnets of one pole are arranged in the axial direction with an increasing offset of a circumferential angle in relation to a first permanent magnet of this pole. Each permanent magnet is skewed at a skew angle defined by a circumferential angle of a projection of a tip portion of the parallelogram or arrow. The optimal skew and staggering angles are calculated from the design parameters for the stator and the number of pole pairs and the number of poles in the axial direction of the rotor.
    Type: Application
    Filed: June 28, 2010
    Publication date: October 21, 2010
    Applicant: Siemens Aktiengesellschaft
    Inventors: MATTHIAS BRAUN, Holger Schunk, Rolf Vollmer
  • Patent number: 7755315
    Abstract: The aim of the invention is to provide a linear/rotation drive with an improved transmitter device for detecting the linear and rotational movements. For this purpose, the transmitter device (12, 14, 16, 17) for detecting the linear movement and/or rotational movement of the secondary part (4) of the linear drive (2) configured as an external rotor is at least partially arranged inside the primary part (6) of the linear drive (2). In this manner, the transmitter device (12, 14, 16, 17) is located in a magnetically shielded area. In order to avoid eccentricities in the transmitted device (12, 14, 16, 17), a journal (10) of the secondary part (4) is mounted on a bearing (11) in the primary part (6).
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: July 13, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Erich Bott, Matthias Braun, Holger Schunk, Rolf Vollmer
  • Patent number: 7732967
    Abstract: Disclosed is an electric machine (1) comprising a stator (2) that encompasses a winding system (10) with three winding branches, and a certain number of effective pole pairs. Each winding branch is provided with at least one coil group, each of which contains an even number of serially connected individual coils (11) that generate an individual magnetic field, respectively. Two respective individual coils (11) of a coil group are offset relative to each other in a circumferential direction of the stator (2) in such a way that the associated individual magnetic fields are provided with an offset electrical angle relative to one another at the sixth harmonic of the number of effective pole pairs, said offset electrical angle being equal to an odd multiple of 180°.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: June 8, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rolf Vollmer, Holger Schunk, Albrecht Storath
  • Publication number: 20100133940
    Abstract: A three-phase dynamoelectrical permanently excited synchronous machine includes a stator with teeth which point to a rotor, wherein twelve slots are formed between the teeth. The slots have coil sides of coils of a winding system in such a manner that two coil sides of different coils are situated in each slot. The rotor has a cylindrical support structure which is provided with permanent magnets defined by an inner radius which corresponds to a radius of the support structure, and by an outer radius which is smaller than their inner radius. The permanent magnets are formed with ten magnet poles when viewed in a circumferential direction.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 3, 2010
    Applicant: Siemens Aktiengesellschaft
    Inventors: UDO GROSSMANN, Holger Schunk, Rolf Vollmer, Michael Zastrow
  • Patent number: 7646131
    Abstract: According to the invention, an improved copper filling in the slots (4) of a permanently-stimulated synchronous motor (2) may be achieved, whereby such a motor is disclosed, comprising a stator (1), with parallel-edged slots (4), provided with a winding system of flat wires (5), whereby the flat wires (5) each enclose a tooth (3) and are embodied as a tooth coil (6). The flat wires (5) are wound edgewise such that the narrower side of the flat wire (5) faces the tooth (3) and each tooth coil (6) comprises at least two layers of flat wires (5).
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: January 12, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Georg, Holger Schunk, Albrecht Storath
  • Publication number: 20090295236
    Abstract: The invention relates to an electric machine which comprises a first machine part (30), comprising a stator element (31) and a rotor element (32) and being configured as a rotary actuator which interacts with a rotary movement of the rotor element (32). The electric machine (40) also comprises a second machine part (20), comprising a primary part (1) and a secondary part (2) and being configured as a linear actuator which interacts with a linear movement of the secondary part (2). The rotor element (32) of the first machine part (30) and the secondary part (2) of the second machine part (20) are interlinked. The secondary part (2) of the second machine part (20) can be rotated and is configured as an external rotor. Such a secondary part (2) allows to generate a higher power of a secondary machine part (20) acting as the linear motor. The secondary part (2) is mounted in the center thereof in relation to the primary part (1).
    Type: Application
    Filed: November 16, 2005
    Publication date: December 3, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: Erich Bott, Rolf Vollmer, Matthias Braun, Holger Schunk
  • Publication number: 20090295251
    Abstract: The permanently excited synchronous machine (1) includes a rotor (3) and a stand (2) which contains a three-branched winding system (8) which comprises tooth coils. The stand (2) has a total of three or six grooves (5) and a tooth (6, 7) is formed there between. A total of three tooth coils (9) are arranged in the grooves (5) and each coil is associated with one of the three winding phases. The number of user pole pairs (pN) is four or five. The rotor (3) has twice as many user pole pairs (pN) of permanent magnets (18) which are evenly distributed on the periphery.
    Type: Application
    Filed: November 28, 2005
    Publication date: December 3, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: Rolf Vollmer, Holger Schunk, Erich Bott, Matthias Braun
  • Publication number: 20090251013
    Abstract: The invention relates to a combination drive with a short axial length and a high magnetic capacity. According to the invention, an electric motor comprises a rotational drive device with an outer rotor (AR), and a linear drive device with an outer rotor (AT) or an inner rotor with bearings in the active part. The outer rotor (AR,AT) can be mounted by means of hydrostatic bearings (L1,L2), indirectly by means of a shaft (W), on the stators (SR,ST) of the two drives. Said bearings (L1,L2) are axially arranged inside the outer rotors (AR, AT), presenting a short structural form of the combination drive. Furthermore, the bearings are not located in the magnetic action interstice of the drives, so that they do not influence the capacity of the machine.
    Type: Application
    Filed: December 13, 2005
    Publication date: October 8, 2009
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Rolf Vollmer, Erich Bott, Matthias Braun, Holger Schunk
  • Publication number: 20090212644
    Abstract: The aim of the invention is to create a combined linear-rotary drive that has a compact, simple, and inexpensive design. Said aim is achieved by a combined drive comprising a linear driving device (3) and a rotary driving device (11), at least one of the two driving devices being provided with a hybrid reluctance motor. It is particularly advantageous to embody both driving devices as hybrid reluctance motors such that the rotor (4) can be produced at a low cost without permanent magnets in addition to ensuring that the drive has a very compact design.
    Type: Application
    Filed: April 21, 2006
    Publication date: August 27, 2009
    Applicant: Siemens Aktiengesellschaft
    Inventors: Erich Bott, Matthias Braun, Detlef Potoradi, Holger Schunk, Rolf Vollmer