Patents by Inventor Thomas Riedisser

Thomas Riedisser 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: 20250145251
    Abstract: An arrangement for actuating a shift element for a bottom bracket gearbox (1) includes a shift ring (4) rotatably mounted in a housing (3) and assigned to a gearbox component. A shift pawl (5) for locking or releasing the shift ring (4) is assigned to the shift ring (4) for shifting a gear stage. A support region mechanically reinforces the housing (3) and is provided at least along a contact region (14) between an inner wall (8) of the housing (3) and an outer circumference of the shift ring (4). The contact region (14) is defined by reaction forces (16) acting when the shift ring (4) is locked.
    Type: Application
    Filed: February 1, 2023
    Publication date: May 8, 2025
    Inventors: Thomas Riedisser, Ulrich Doerr, Peter Ziemer, Leschek Debernitz, Christoph Margraf, Hagen Doepfert, Uwe Schraff, Uwe Griesmeier, Michel Wiemer, Markus Strobel
  • Publication number: 20250145250
    Abstract: An arrangement for actuating a shift element of a gearbox includes a rotatably mounted and preloaded shift pawl (2) and a shift ring (3) with an outer toothing (4) and assigned to a gearbox element. A first end (8) of the shift pawl (2) is assigned to the outer toothing (4) of the shift ring (3) so as to lock or release the shift ring (3) in order to shift a gear stage, and a second end (9) of the shift pawl (2) is assigned to a shift gate (6) of a shift drum (5) that actuates the shift pawl (2). The shift pawl (2) is operatively connected to at least one double torsion spring (10) in order to apply a preload force.
    Type: Application
    Filed: February 1, 2023
    Publication date: May 8, 2025
    Inventors: Hagen Doepfert, Peter Ziemer, Thomas Riedisser, Ulrich Doerr, Uwe Schraff, Markus Strobel, Christoph Margraf, Uwe Griesmeier, Leschek Debernitz, Michel Wiemer
  • Patent number: 12291304
    Abstract: A gear set arrangement (10) for a bicycle gearbox (400) includes a planetary assembly, a stationary component (24), a first and a second brake (B1, B2), and a first and a second freewheel clutch (F1, F2). One planetary gear set (12) of the planetary assembly includes a first rotary element, a second rotary element, and a third rotary element. The first rotary element is rotationally fixable on the stationary component (24) by the first brake (B1). The first rotary element is connectable to the output (36) by the first freewheel clutch (F1). The second rotary element is rotationally fixable on the stationary component (24) by the second brake (B2). The second rotary element is connectable to the output (36) by the second freewheel clutch (F2). The third rotary element is connected to the input (34) for conjoint rotation. The gear set arrangement (10) is configured to provide three ratios.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: May 6, 2025
    Assignee: ZF Friedrichshafen AG
    Inventors: Peter Ziemer, Thomas Riedisser, Hagen Doepfert, Ulrich Doerr, Christoph Margraf, Reinhard Deppert, Uwe Schraff, Sebastian Grimm, Markus Strobel, Harald Tiesler, Matthias List, Rainer Grundler, Ingo Lippenberger
  • Patent number: 12215773
    Abstract: An automatic transmission (1) includes a transmission housing, a hydrodynamic torque converter (5), a first brake, a second brake, an intermediate plate (6) fixedly connected to the transmission housing and with ducts for supplying the hydrodynamic torque converter (5) and the two brakes (A, B) with oil. An oil guide shell (7) is arranged between the hydrodynamic torque converter (5) and the intermediate plate (6). Oil coming from the two brakes sinks via oil ducts (39.1, 39.2, 39.3) in the transmission housing and the intermediate plate (6) via the inflow opening (40) in the oil guide shell (7). The hydrodynamic torque converter (5), via rotation, conveys the oil to the elevated oil ejection opening in the oil guide shell (7), from where the oil sinks into the tank (8) via a gap (52) delimited by the oil guide shell (7) and the intermediate plate (6).
    Type: Grant
    Filed: May 5, 2023
    Date of Patent: February 4, 2025
    Assignee: ZF Friedrichshafen AG
    Inventors: Thomas Riedisser, Gabriele Glade, Julia Baumann, Stephan Stroph, Andreas Knörle-Philipp, Jan Göbel, Peter Reinders, Martin Kibler, Hans-Peter Bock, Florian Lanz, Juergen Stauber, Rudolf Raedler
  • Publication number: 20240383571
    Abstract: A bottom bracket gear mechanism for a bicycle or a pedelec includes a gear mechanism shifting group in which a second element of the first gear set is connected to a first shaft, a third element of the first gear set is connected via a fourth shaft to a second element of the second gear set, and a first element of the first gear set is connected to a fifth shaft. A first element of the second gear set is fixable via a third shaft and the second shifting element. The third shaft is connectable to the fifth shaft via the sixth shifting element. The third element of the second gear set is fixable via a second shaft and via the first shifting element. The second shaft is connectable to the first shaft via the fifth shifting element.
    Type: Application
    Filed: May 16, 2024
    Publication date: November 21, 2024
    Inventors: Stefan Beck, Michael Wechs, Fabian Kutter, Thomas Martin, Mladjan Radic, Thomas Riedisser, Hagen Doepfert
  • Publication number: 20240383572
    Abstract: A bottom bracket planetary gear mechanism for a bicycle or a pedelec includes a gear mechanism shifting group having first and second planetary gear sets and first, second, and fifth shifting elements. A second element of the first gear set is connected to a first shaft, a first element of the first gear set is connected via a fourth shaft to a first element of the second gear set, and a third element of the first gear set is fixable via a second shaft and a first shifting element. The third element of the first gear set is connected via the second shaft to a second element of the second gear set. A third element of the second gear set is fixable via a third shaft and a second shifting element. A fifth shifting element blocks the first and second gear sets.
    Type: Application
    Filed: May 16, 2024
    Publication date: November 21, 2024
    Inventors: Stefan Beck, Michael Wechs, Fabian Kutter, Thomas Martin, Mladjan Radic, Thomas Riedisser, Hagen Doepfert
  • Publication number: 20240359775
    Abstract: A gear set arrangement (10) for a bicycle gearbox (400) includes a planetary assembly, a stationary component (24), a first and a second brake (B1, B2), and a first and a second freewheel clutch (F1, F2). One planetary gear set (12) of the planetary assembly includes a first rotary element, a second rotary element, and a third rotary element. The first rotary element is rotationally fixable on the stationary component (24) by the first brake (B1). The first rotary element is connectable to the output (36) by the first freewheel clutch (F1). The second rotary element is rotationally fixable on the stationary component (24) by the second brake (B2). The second rotary element is connectable to the output (36) by the second freewheel clutch (F2). The third rotary element is connected to the input (34) for conjoint rotation. The gear set arrangement (10) is configured to provide three ratios.
    Type: Application
    Filed: July 27, 2022
    Publication date: October 31, 2024
    Inventors: Peter Ziemer, Thomas Riedisser, Hagen Doepfert, Ulrich Doerr, Christoph Margraf, Reinhard Deppert, Uwe Schraff, Sebastian Grimm, Markus Strobel, Harald Tiesler, Matthias List, Rainer Grundler, Ingo Lippenberger
  • Publication number: 20240360889
    Abstract: A transmission has a differential including a first planetary gear set having a first gear set element connected to an input shaft for conjoint rotation, a second gear set element at least indirectly connected to a first output shaft for conjoint rotation, and a third gear set element that is a ring gear. The differential further includes a second planetary gear set having a first gear set element that is a sun gear, a second gear set element non-rotationally connected to a positionally fixed component, and a third gear set element at least indirectly connected to a second output shaft for conjoint rotation. The differential also includes a connector connecting the ring gear of the first planetary gear set and the sun gear of the second planetary gear set for conjoint rotation, where the connector and the ring gear of the first planetary gear set are integrally bonded.
    Type: Application
    Filed: April 18, 2024
    Publication date: October 31, 2024
    Inventors: Philip Dötschel, Tamas Gyarmati, Thomas Riedisser, Hagen Doepfert, Martin Brehmer, Matthias Reisch
  • Publication number: 20240343344
    Abstract: An actuating arrangement for a transmission includes a pivotable pawl (14) and a rotatable shift drum (10). By rotating in a first rotational direction from a first into a second angular position, the shift drum (10) is configured to push the pawl (14) with the actuating surface (20) out of an engaged position into a released position and by rotating in the second rotational direction from the second into the first angular position to enable the pawl (14) to drop out of the released position into the engaged position. The actuating arrangement includes an actuating device (30) configured to adjust the pawl (14) out of the released position into the engaged position. The pawl (14) is adjusted by the actuating device (30) out of the released position into the engaged position only in a third angular position of the shift drum (10) between the first and the second angular position.
    Type: Application
    Filed: April 12, 2024
    Publication date: October 17, 2024
    Inventors: Hagen Doepfert, Thomas Riedisser, Peter Ziemer, Michel Wiemer, Kevin Kruse
  • Publication number: 20240308331
    Abstract: A drive train (1) for a motor vehicle (13) includes a prime mover (2) and a transmission (3) with at least one first planetary gear set (P1) that includes gear set elements with a sun gear (P1.1), a planet carrier (P1.2) and a ring gear (P1.3). The prime mover (2) includes an input shaft (5), which at least indirectly transmits drive power onto an input shaft (4) of the transmission (3). The input shaft (4) is connected to one of the gear set elements of the first planetary gear set (P1) for conjoint rotation. The drive shaft (5) is connected via a spline (6) to the input shaft (4) for conjoint rotation. The spline (6) is arranged axially between a toothing (15) of a first gear set element of the first planetary gear set (P1) and an axial stop (8) configured to axially support the input shaft (4) against the drive shaft (5) in one torque direction.
    Type: Application
    Filed: March 14, 2024
    Publication date: September 19, 2024
    Inventors: Philip Dötschel, Matthias Reisch, Tamas Gyarmati, Thomas Riedisser, Hagen Doepfert, Martin Brehmer
  • Publication number: 20240235300
    Abstract: Proposed is a rotor assembly for an electric machine, having a rotor that comprises a laminated-core support, a rotor support and a rotor hub, the rotor support being approximately in the form of a disk and being provided with at least one circumferential annular rib portion to increase rigidity. An electric machine having a rotor assembly is also proposed. Additionally proposed are a hybrid automatic transmission and an electrically driven axle, both of which are equipped with a rotor assembly.
    Type: Application
    Filed: May 3, 2022
    Publication date: July 11, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Thomas Riedisser, Matthias Weidner, Peter Fenn, Florian Pöhnlein, Claudius Flogaus
  • Patent number: 11815167
    Abstract: A lubricant guide shell (32) for includes a first, radially extending section (33), which is provided for being situated axially opposite an end face (35) of a torque converter (9) in an installed state of the lubricant guide shell (32). The first section (33) transitions radially outwardly into a second, axially extending section (34), which, in the installed state of the lubricant guide shell (32), is configured for axially at least partially and radially outwardly encompassing the torque converter starting from the first section (33). The first section (33) as well as the second section (34) are configured to be completely circumferential.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: November 14, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Gabriele Glade, Thomas Riedisser, Leschek Debernitz, Stephan Stroph, Peter Reinders, Wolfgang Schmid, Frank Pfarrherr, Florian Lanz, Rudolf Raedler
  • Publication number: 20230358301
    Abstract: An automatic transmission (1) includes a transmission housing, a hydrodynamic torque converter (5), a first brake, a second brake, an intermediate plate (6) fixedly connected to the transmission housing and with ducts for supplying the hydrodynamic torque converter (5) and the two brakes (A, B) with oil. An oil guide shell (7) is arranged between the hydrodynamic torque converter (5) and the intermediate plate (6). The oil guide shell (7) has an inflow opening (40), which is arranged above a tank, and an oil ejection opening, which is arranged above the inflow opening (40). Oil coming from the two brakes sinks via oil ducts (39.1, 39.2, 39.3) in the transmission housing and the intermediate plate (6) and reaches the hydrodynamic torque converter (5) via the inflow opening (40) in the oil guide shell (7).
    Type: Application
    Filed: May 5, 2023
    Publication date: November 9, 2023
    Inventors: Thomas Riedisser, Gabriele Glade, Julia Baumann, Stephan Stroph, Andreas Knörle-Philipp, Jan Göbel, Peter Reinders, Martin Kibler, Hans-Peter Bock, Florian Lanz, Juergen Stauber, Rudolf Raedler
  • Publication number: 20230313871
    Abstract: An electric transmission (16) for a motor vehicle drive train (12) includes a transmission input shaft (24) for operatively connecting the electric transmission to an electric prime mover (14), a reduction gear (26) for reducing a rotational speed of the electric prime mover, a transmission (28) for establishing gear steps, including a first planetary gear set (RS1) and a second planetary gear set (RS2), a first output shaft (34) and a second output shaft (36) for transmitting drive power from the electric transmission, and a plurality of shift elements (B, C, D) for engaging the gear steps. A planet carrier of the first planetary gear set is drivingly connected to a planet carrier of the second planetary gear set, and a sun gear of the first planetary gear set is drivingly connected to a ring gear of the second planetary gear set.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 5, 2023
    Inventors: Peter Ziemer, Bernard Hunold, Eckhardt Lübke, Thomas Riedisser, Thomas Schneider, Martin Brehmer, Thomas Martin, Michael Wechs, Fabian Kutter
  • Patent number: 11752855
    Abstract: A hybrid module having a damper hub connected to an internal combustion engine, a housing, a clutch, an electric machine which has a rotor and a stator connected to the housing, a torque converter has a converter housing connected to a central hub and a turbine shaft, and an output shaft. The rotor of the electric machine is connected to the central hub or the converter housing. The turbine shaft is connected to the output shaft to be fixed with respect to rotation and the clutch is arranged between the damper hub and the torque converter The central hub is supported at the output shaft via at least one bearing and is supported at the damper hub via at least two bearings and the damper hub is supported at the housing by a bearing.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: September 12, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Monika RÖßner, Gerald Viernekes, Wolfgang Kundermann, Wolfgang Großpietsch, Martin Brehmer, Thilo Schmidt, Thomas Riedisser
  • Patent number: 11746851
    Abstract: A damper arrangement for a motor vehicle drive train includes a damper (120) for damping torsional vibrations and a rotationally fixed fluid guide element (110). The fluid guide element (110) is axially adjacent to the damper (120). The damper (120) has at least one duct (112-1, 112-2, 112-3). A fluid (140) that at least partially surrounds the damper (120) is conveyed through the at least one duct (112-1, 112-2, 112-3) when the damper (120) rotates.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: September 5, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Thomas Riedisser, Tamas Gyarmati, Derk Langenkaemper
  • Publication number: 20230241959
    Abstract: A vehicle transmission includes a transmission housing defining an oil sump space and a hybrid space, with the hybrid space being arranged vertically above the oil sump space. The transmission further includes a first oil guide shell and a second oil guide shell each fixed to the transmission housing. Additionally, the transmission includes rotating components installable in a portion of the hybrid space between the first oil guide shell and the second oil guide shell in an axial direction, where the rotating components includes at least one electric machine, a damper, and a torsional shock absorber. Two contactless gap seals are formed by one of the oil guide shells and at least one of the rotating components such that oil entry from the oil sump into the portion of the hybrid space is delimited axially by the oil guide shells and radially by the gap seals.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 3, 2023
    Inventors: Thomas Riedisser, Wolfgang Schmid, Leschek Debernitz, Thomas Dirheimer, Manuel Schwaerzler, Florian Pöhnlein, Daniel Haase, Peter Reinders, Martin Kibler
  • Patent number: 11661977
    Abstract: A wet-running multi-disk clutch (B) for a motor vehicle transmission (G) includes a piston (K) provided at a first side of the multi-disk clutch (B), by which a force acting in an axial direction is applicable onto inner and outer clutch disks (IL, AL) in order to engage the multi-disk clutch (B). The multi-disk clutch (B) is supported against an abutting surface (AF) via an end disk (ALE) of the outer clutch disks (AL) at a second side, which is opposite the first side. Grooves (N) are provided at one or both of the abutting surface (AF) and the end disk (ALE). The grooves (N) are configured and arranged such that cooling fluid (O) routed to the multi-disk clutch (B) is flowable out of the multi-disk clutch (B) through the grooves (N).
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: May 30, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Thomas Riedisser, Peter Reinders
  • Patent number: 11536359
    Abstract: An arrangement of at least one sensor track-scanning rotor position sensor (1, 1 A) of an electric machine (EM) in a hybrid transmission housing (2) that includes a torque converter (3) and a housing-affixed oil supply plate arrangement is provided. The rotor position sensor (1, 1 A) is attached on an oil-supply-plate side, and a sensor ring (8), as a sensor track, is attached on a converter side. A hybrid transmission housing (2) including the arrangement is also provided.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: December 27, 2022
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Linus Eschenbeck, Thomas Riedisser, Carl Schilling, Andreas Geiger, Gerald Viernekes, Matthias Weidner, Monika Rößner, Christopher Allnoch
  • Publication number: 20220389995
    Abstract: A lubricant guide shell (32) for includes a first, radially extending section (33), which is provided for being situated axially opposite an end face (35) of a torque converter (9) in an installed state of the lubricant guide shell (32). The first section (33) transitions radially outwardly into a second, axially extending section (34), which, in the installed state of the lubricant guide shell (32), is configured for axially at least partially and radially outwardly encompassing the torque converter starting from the first section (33). The first section (33) as well as the second section (34) are configured to be completely circumferential.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 8, 2022
    Inventors: Gabriele Glade, Thomas Riedisser, Leschek Debernitz, Stephan Stroph, Peter Reinders, Wolfgang Schmid, Frank Pfarrherr, Florian Lanz, Rudolf Raedler