Patents by Inventor Gerhard Huth

Gerhard Huth 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: 11791683
    Abstract: A 3-strand rotating field machine with a 2p-pole stator with winding teeth (Z), formed with a winding arrangement in tooth coil technology, has three winding strands (W1, W2, W3). The winding arrangement is formed from wound coil groups (G) with coils that are multiply interleaved. The partial coils (T) of the coil groups (G) are arranged so they concentrically enclose one another from inside to outside and surround two or more winding teeth (Z). The respective coil winding numbers in the grooves (N) between the winding teeth (Z) are provided. Thus, in each case a substantially equal occupancy of each groove (N) is provided with the same effective total conductor cross section of the coils per groove cross section.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: October 17, 2023
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Gerhard Huth, Jens Krotsch
  • Patent number: 11349356
    Abstract: The invention relates to a double-phase rotating field machine having a 2p-pole stator with winding teeth (Z), which is designed with a winding arrangement in tooth coil technology, comprising two phase windings (W1, W2, W3), wherein the winding arrangement is formed from wound coil groups (G) with coils nested in one another several times, wherein the coil sections (T) of said coil groups (G) are arranged concentrically surrounding one another from the inside to the outside, and comprise two or a plurality of winding teeth (Z), wherein the respective coil winding numbers are arranged in the grooves (N) between the winding teeth (Z) such that in each case an essentially uniform coating of each groove (N) with the same effective total conductor cross section of the coils per groove cross section is given.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: May 31, 2022
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Gerhard Huth, Jens Krotsch
  • Patent number: 11303179
    Abstract: The invention relates to a stator active part for an electric motor, preferably a permanent-magnet-excited synchronous machine consisting of a hollow-cylindrical yoke, comprising an inner cladding and having a receptacle space, into which a coil support is inserted, wherein the coil support consists of a peripherally-closed, hollow-cylindrical tubular body extending in the axial direction (A) of the yoke, on the outer cladding of said body a plurality of coil holders being formed, wherein a finely-distributed coil is installed on each coil holder.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: April 12, 2022
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Gerhard Huth, Jiawei He, Jens Krotsch, Roland Erneker, Otmar Hügel, Walter Hofmann
  • Publication number: 20220021263
    Abstract: The invention relates to a stator active part for an electric motor, preferably a permanent-magnet-excited synchronous machine consisting of a hollow-cylindrical yoke, comprising an inner cladding and having a receptacle space, into which a coil support is inserted, wherein the coil support consists of a peripherally-closed, hollow-cylindrical tubular body extending in the axial direction (A) of the yoke, on the outer cladding of said body a plurality of coil holders being formed, wherein a finely-distributed coil is installed on each coil holder.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 20, 2022
    Inventors: Gerhard HUTH, Jiawei HE, Jens KROTSCH, Roland ERNEKER, Otmar HÜGEL, Walter HOFMANN
  • Patent number: 11139710
    Abstract: A three-phase machine with a 2-pole stator (10) formed with a winding arrangement of a double-layer tooth-wound coil winding has m winding phases (U, V, W). The winding arrangement has at least one first double-layer tooth-wound coil (20) and one second double-layer tooth-wound coil (30). Each tooth-wound coil occupies a half of each of four respective adjacent slots (N) of the stator (10) with a winding phase (W). Each double-layer tooth-wound coil (20, 30) forms two concentrically arranged coils. The second double-layer tooth-wound coil (30) is arranged such that it is shifted by a pole pitch with respect to the first double-layer tooth-wound coil (20).
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: October 5, 2021
    Assignee: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Gerhard Huth, Jens Krotsch
  • Patent number: 10978967
    Abstract: A PM line-start motor, preferably motors having a power of at least 5 kW, and a switch-on method therefor are provided. The motor includes a rotor and a stator having a stator winding designed as a pole-reversible rotary field winding. With the aid of the pole-reversible rotary field winding, the regenerative braking torque generated during the asynchronous high-run operation can be avoided, preferably by use of a sequence controller to control the changeover of the pole-reversible rotary field winding in the run-up phase.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: April 13, 2021
    Assignee: KSB SE & Co. KGaA
    Inventors: Gerhard Huth, Hans-Georg Schirmer
  • Publication number: 20210104929
    Abstract: A 3-strand rotating field machine with a 2p-pole stator with winding teeth (Z), formed with a winding arrangement in tooth coil technology, has three winding strands (W1, W2, W3). The winding arrangement is formed from wound coil groups (G) with coils that are multiply interleaved. The partial coils (T) of the coil groups (G) are arranged so they concentrically enclose one another from inside to outside and surround two or more winding teeth (Z). The respective coil winding numbers in the grooves (N) between the winding teeth (Z) are provided. Thus, in each case a substantially equal occupancy of each groove (N) is provided with the same effective total conductor cross section of the coils per groove cross section.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 8, 2021
    Applicant: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Gerhard HUTH, Jens KROTSCH
  • Publication number: 20200328635
    Abstract: The invention relates to a double-phase rotating field machine having a 2p-pole stator with winding teeth (Z), which is designed with a winding arrangement in tooth coil technology, comprising two phase windings (W1, W2, W3), wherein the winding arrangement is formed from wound coil groups (G) with coils nested in one another several times, wherein the coil sections (T) of said coil groups (G) are arranged concentrically surrounding one another from the inside to the outside, and comprise two or a plurality of winding teeth (Z), wherein the respective coil winding numbers are arranged in the grooves (N) between the winding teeth (Z) such that in each case an essentially uniform coating of each groove(N) with the same effective total conductor cross section of the coils per groove cross section is given.
    Type: Application
    Filed: December 3, 2018
    Publication date: October 15, 2020
    Applicant: ebm-papst Mulfingen GmbH & Co. KG
    Inventors: Gerhard HUTH, Jens KROTSCH
  • Publication number: 20200287481
    Abstract: A PM line-start motor, preferably motors having a power of at least 5 kW, and a switch-on method therefor are provided. The motor includes a rotor and a stator having a stator winding designed as a pole-reversible rotary field winding. With the aid of the pole-reversible rotary field winding, the regenerative braking torque generated during the asynchronous high-run operation can be avoided, preferably by use of a sequence controller to control the changeover of the pole-reversible rotary field winding in the run-up phase.
    Type: Application
    Filed: November 22, 2016
    Publication date: September 10, 2020
    Inventors: Gerhard HUTH, Hans-Georg SCHIRMER
  • Publication number: 20200083770
    Abstract: A three-phase machine with a 2-pole stator (10) formed with a winding arrangement of a double-layer tooth-wound coil winding has m winding phases (U, V, W). The winding arrangement has at least one first double-layer tooth-wound coil (20) and one second double-layer tooth-wound coil (30). Each tooth-wound coil occupies a half of each of four respective adjacent slots (N) of the stator (10) with a winding phase (W). Each double-layer tooth-wound coil (20, 30) forms two concentrically arranged coils. The second double-layer tooth-wound coil (30) is arranged such that it is shifted by a pole pitch with respect to the first double-layer tooth-wound coil (20).
    Type: Application
    Filed: November 14, 2019
    Publication date: March 12, 2020
    Inventors: Gerhard Huth, Jens KROTSCH
  • Patent number: 9806588
    Abstract: An electric motor comprising a rotor which has a plurality of permanent magnets arranged along a circumferential direction, a stator arrangement with a winding arrangement which surrounds, at least in parts, the permanent magnets. Said stator arrangement comprises a first stator having a plurality of windings and the stator arrangement comprises a second stator, the windings of the first and second stators being embodied, respectively as frame-shaped coils, said coils of the first stator being arranged in the radial direction on the outside of the permanent magnets, the coils of the second stator being arranged in the radial direction inside the permanent magnets, and the coils are arranged along the winding axis thereof in the radial direction and the permanent magnets are arranged along the magnetization direction thereof in the radial direction.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: October 31, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Martin Hoffmann, Gerhard Huth
  • Patent number: 9685845
    Abstract: A rotor (11) with a squirrel cage and permanent magnets (19) mounted on and distributed around the circumference of the rotor, including a core stack extending over the entire rotor region with longitudinally continuous rotor slots extending over the length of the core stack. The squirrel cage is constructed with cage bars disposed, and preferably cast, in the rotor slots; short circuit rings connect the cage bars at both end faces of the core; and the radius of the rotor region is reduced by at least the radial thickness of the magnets. The radius of rotor (11) is reduced over the entire length between short circuit rings (17) such that the radial height of cage bars (15, 29) or cage webs (27) connected thereto is reduced. Also an electric motor or a radial pump having such a rotor, and methods of producing or operating such devices.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 20, 2017
    Assignee: KSB Aktiengesellschaft
    Inventors: Gerhard Huth, Sven Urschel, Ralf Fischer
  • Patent number: 9048714
    Abstract: A rotor (11) with a squirrel cage and permanent magnets (19) mounted on and distributed around the circumference of the rotor, including a core stack extending over the entire rotor region with longitudinally continuous rotor slots extending over the length of the core stack. The squirrel cage is constructed with cage bars disposed, and preferably cast, in the rotor slots; short circuit rings connect the cage bars at both end faces of the core; and the radius of the rotor region is reduced by at least the radial thickness of the magnets. The radius of rotor (11) is reduced over the entire length between short circuit rings (17) such that the radial height of cage bars (15, 29) or cage webs (27) connected thereto is reduced. Also an electric motor or a radial pump having such a rotor, and methods of producing or operating such devices.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: June 2, 2015
    Assignee: KSB Aktiengesellschaft
    Inventors: Gerhard Huth, Sven Urschel, Ralf Fischer
  • Publication number: 20150061451
    Abstract: An electric motor comprising a rotor which has a plurality of permanent magnets arranged along a circumferential direction, a stator arrangement with a winding arrangement which surrounds, at least in parts, the permanent magnets. Said stator arrangement comprises a first stator having a plurality of windings and the stator arrangement comprises a second stator, the windings of the first and second stators being embodied, respectively as frame-shaped coils, said coils of the first stator being arranged in the radial direction on the outside of the permanent magnets, the coils of the second stator being arranged in the radial direction inside the permanent magnets, and the coils are arranged along the winding axis thereof in the radial direction and the permanent magnets are arranged along the magnetization direction thereof in the radial direction.
    Type: Application
    Filed: February 28, 2012
    Publication date: March 5, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Martin Hoffmann, Gerhard Huth
  • Publication number: 20150022043
    Abstract: A rotor in an electric motor has a plurality of permanent magnets arranged along a circumferential direction. The electric motor has a stator arrangement with a winding arrangement which surrounds, at least in parts, the permanent magnets. The stator arrangement includes a first stator having a plurality of windings and a second stator. The windings of the first and second stators are embodied, respectively, as frame-shaped coils arranged along the winding axis thereof in the radial direction. The coils of the first stator are arranged in the radial direction on the outside of the permanent magnets and the coils of the second stator are arranged in the radial direction inside the permanent magnets.
    Type: Application
    Filed: February 28, 2012
    Publication date: January 22, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Martin Hoffmann, Gerhard Huth
  • Publication number: 20140196277
    Abstract: A rotor (11) with a squirrel cage and permanent magnets (19) mounted on and distributed around the circumference of the rotor, including a core stack extending over the entire rotor region with longitudinally continuous rotor slots extending over the length of the core stack. The squirrel cage is constructed with cage bars disposed, and preferably cast, in the rotor slots; short circuit rings connect the cage bars at both end faces of the core; and the radius of the rotor region is reduced by at least the radial thickness of the magnets. The radius of rotor (11) is reduced over the entire length between short circuit rings (17) such that the radial height of cage bars (15, 29) or cage webs (27) connected thereto is reduced. Also an electric motor or a radial pump having such a rotor, and methods of producing or operating such devices.
    Type: Application
    Filed: March 14, 2014
    Publication date: July 17, 2014
    Applicant: KSB Aktiengesellschaft
    Inventors: Gerhard HUTH, Sven URSCHEL, Ralf FISCHER
  • Publication number: 20120282122
    Abstract: A rotor (11) with a squirrel cage and permanent magnets (19) mounted on and distributed around the circumference of the rotor, including a core stack extending over the entire rotor region with longitudinally continuous rotor slots extending over the length of the core stack. The squirrel cage is constructed with cage bars disposed, and preferably cast, in the rotor slots; short circuit rings connect the cage bars at both end faces of the core; and the radius of the rotor region is reduced by at least the radial thickness of the magnets. The radius of rotor (11) is reduced over the entire length between short circuit rings (17) such that the radial height of cage bars (15, 29) or cage webs (27) connected thereto is reduced. Also an electric motor or a radial pump having such a rotor, and methods of producing or operating such devices.
    Type: Application
    Filed: June 21, 2012
    Publication date: November 8, 2012
    Applicant: KSB Aktiengesellschaft
    Inventors: Gerhard Huth, Sven Urschel, Ralf Fischer
  • Publication number: 20110031840
    Abstract: In a drive system, including a stator and a rotor associated with an energy transmission system supplying energy to a load on the rotor, the drive function and the energy transmission function are largely independent of each other. A subharmonic air gap field portion is used for transmitting electric energy to a rotor winding.
    Type: Application
    Filed: March 26, 2009
    Publication date: February 10, 2011
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Gerhard Huth, Markus Reinhard
  • Patent number: 7564158
    Abstract: The aim of the invention is to achieve a high torque yield in synchronous machines excited by permanent magnets. Said aim is achieved by using subharmonic air gap fields. The rotor comprises an induction cage as well as permanent magnets. The number of winding holes of the stator is greater than q=0.5. The number of poles of the rotor is greater than the base number of poles of the air gap field produced by the windings.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: July 21, 2009
    Assignee: Siemens Aktiengesellschaft
    Inventors: Gerhard Huth, Rolf Vollmer
  • Publication number: 20070035193
    Abstract: The aim of the invention is to achieve a high torque yield in synchronous machines excited by permanent magnets. Said aim is achieved by using subharmonic air gap fields. The rotor comprises an induction cage as well as permanent magnets. The number of winding holes of the stator is greater than q=0.5. The number of poles of the rotor is greater than the base number of poles of the air gap field produced by the windings.
    Type: Application
    Filed: September 11, 2003
    Publication date: February 15, 2007
    Applicant: Siemens Aktiengesellschaft
    Inventors: Gerhard Huth, Rolf Vollmer