Patents by Inventor Eckhardt Lubke

Eckhardt Lubke 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: 20240117868
    Abstract: A transmission for a motor vehicle includes a first, a second, and a third planetary gear set, an input shaft, a first and a second output shaft, and a first and a second coupling shaft. Respective elements of the first planetary gear set are rotationally fixed to the input shaft, rotationally fixed to the first coupling shaft, and rotationally fixed to the second coupling shaft. Respective elements of the second planetary gear set are rotationally fixed to the first coupling shaft, rotationally fixed to a stationary component, and rotationally fixed to the second output shaft. Respective elements of the third planetary gear set are rotationally fixed to the second coupling shaft, rotationally fixed to the first output shaft, and rotationally fixed to the second output shaft.
    Type: Application
    Filed: October 5, 2023
    Publication date: April 11, 2024
    Inventors: Stefan Beck, Matthias Reisch, Eckhardt Lübke, Domenico Bartilucci, Tamas Gyarmati
  • Patent number: 11885396
    Abstract: A transmission arrangement for an at least partially electrically driven vehicle includes a first electric machine defining a first central longitudinal axis and having a first gear stage and a second gear stage. The arrangement further includes a second electric machine defining a second longitudinal axis and having a first gear stage and a second gear stage. Further, the arrangement includes a transmission housing, with the first and second electric machines being arranged in the transmission housing. Additionally, the arrangement includes a differential drivingly connected to the second gear stages of the first and second electric machines. The first and second central longitudinal axes are axially parallel to each other on a circular path, the circular path being perpendicular to an output axis.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: January 30, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Timo Wehlen, Stephan Scharr, Eckhardt Lübke, Manfred Till
  • 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: 11660949
    Abstract: A drive device (2) for an at least partially electrically driven vehicle (1) includes an electric machine (3) having a rotor shaft (8) extending longitudinally along an input axis (4). The drive device further includes a first output shaft (6a) extending longitudinally along an output axis (7) and parallel to the rotor shaft (8). Moreover, the drive device includes a gear stage (5) having a first gearwheel (9) rotationally fixed to the rotor shaft (8), and a second gearwheel (10) meshed with the first gearwheel (9) and drivingly connected to the first output shaft (6a). Additionally, the drive device includes a housing (11) having a shared housing cavity (12), wherein the first output shaft (6a) and the electric machine (3) are parallel to one another in the housing cavity (12), and wherein an air gap (18) extends radially between the electric machine (3) and the first output shaft (6a).
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: May 30, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Timo Wehlen, Michael Roske, Sabine Sielemann, Wolfgang Rieger, Ulrich Kehr, Eckhardt Lübke
  • Patent number: 11603907
    Abstract: A gear transmission includes a first helical-cut gearwheel (1) and a second helical-cut gearwheel (2) engaged for transmitting torques in different directions. The first gearwheel (1) and the second gearwheel (2) each include corresponding ring-shaped thrust collars (4, 5), and corresponding thrust collars (4, 5) each form a race (8, 9, 10, 11) having an overlap region. A first race (8) and a second race (9) form an overlap region for traction torques, and a third race (10) and a fourth race (11) form an overlap region for overrun torques. Each overlap region includes a contact surface or a contact point (14, 15), and each contact point (14, 15) is situated on a contact circle diameter (16, 17). The contact surfaces or contact points (8, 9) for traction torques and the contact surfaces or contact points (10, 11) for overrun torques are radially offset.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: March 14, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Matthias Reisch, Christoph Erkens, Eckhardt Lübke, Martin Rattay, Marc Seeberger
  • Patent number: 11585432
    Abstract: An oil supply arrangement of a vehicle with an electric machine in a housing with at least one oil volume connected to an oil volume of a transmission housing of the vehicle for oil supply. The oil volume of the electric machine is divided into at least two oil supply spaces to compensate an oil level in the housing. A first oil supply space is arranged at a side of the housing facing the driving direction of the vehicle and a second oil supply space is arranged at a side of the housing opposite the driving direction of the vehicle.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: February 21, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Timo Wehlen, Ingrid Reh, Ulrich Kerr, Wolfgang Reiger, Stephan Scharr, Eckhardt Lübke, Marc Schieß, Florian Dichtl
  • Patent number: 11578794
    Abstract: A device (1) for cooling and lubricating components of a vehicle (2) may include a housing (3), a coolant sump (4), a coolant pump (5) for pumping coolant (6) from the coolant sump (4), a heat exchanger (7) for cooling coolant (6) from the coolant pump (5), and a coolant line system (8) including a coolant reservoir (9) having a single coolant inlet (10) and multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5). The coolant line system (8) fluidically connects the coolant pump (5) to the heat exchanger (7), and the heat exchanger (7) to the single coolant inlet (10) of the coolant reservoir (9). The coolant reservoir (9) receives coolant (6) from the heat exchanger (7) via the single coolant inlet (10) and directs coolant (6) via the multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5) onto components in the housing (3) requiring cooling and lubrication.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: February 14, 2023
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Michael Roske, Sabine Sielemann, Eckhardt Lübke, Stephan Scharr, Danny Grusser, Wolfgang Rieger, Ulrich Kehr, Timo Wehlen, Andreas Hölscher, Martin Jelinewski
  • Publication number: 20220399771
    Abstract: A rotor (2) for an electric machine (1) includes a rotor shaft (3) having at least one cooling duct (4), through which a coolant is flowable, and a laminated core (5) arranged on the rotor shaft (3). The laminated core (5) is arranged axially between a first end plate (6) and a second end plate (7) arranged on the rotor shaft (3). The laminated core (5) includes multiple axial ducts (8) for guiding the coolant through the rotor (2). The axial ducts (8) are fluidically connected to at least one distribution duct (9) in the particular end plate (6, 7) for the inflow of the coolant. The axial ducts (8) are fluidically connected to at least one return duct (16) in the particular other end plate (7, 6) for the outflow of the coolant. The at least one distribution duct (9) in the particular end plate (6, 7) is fluidically connected to the at least one cooling duct (4) at the rotor shaft (3).
    Type: Application
    Filed: October 19, 2020
    Publication date: December 15, 2022
    Inventors: Martin Jelinewski, Andreas Hölscher, Stephan Scharr, Manfred Till, Eckhardt Lübke, Mathias Döring
  • Publication number: 20220393526
    Abstract: A stator (2) for an electric machine (1) includes a laminated core (3) arranged axially between a first end plate (4) and a second end plate (5). A cooling line (6) for introducing a coolant into at least one distribution duct (7) at the particular end plate (4, 5) is arranged outside the end plates (4, 5) and the stator (2) and is fluidically connected to the at least one distribution duct (7) in the particular end plate (4, 5). The laminated core (3) includes multiple axial ducts (8) for guiding the coolant through the stator (2). The axial ducts (8) are fluidically connected to the at least one distribution duct (7) in the particular end plate (4, 5) for the inflow of the coolant. An outflow for the coolant is formed by at least one end-face opening (9) in the particular end plate (4, 5). The at least one opening (9) is configured for spraying the coolant out of the axial ducts (8) onto winding overhangs (10) of the stator (2).
    Type: Application
    Filed: September 23, 2020
    Publication date: December 8, 2022
    Inventors: Martin Jelinewski, Stephan Scharr, David Wörzler, Mathias Döring, Andreas Hölscher, Manfred Till, Eckhardt Lübke
  • Publication number: 20220247254
    Abstract: An electric machine (1) includes a multi-piece housing (2), a stator (4) stationarily accommodated at the housing (2) by a plastic body (3), and a rotor (5) arranged radially within the stator (4). The plastic body (3) is electrically insulating and surrounds at least one electrical line (17a, 17b, 17c) configured for conducting an electric current between a power electronics unit of the electric machine (1) and the stator (4). At least one channel (8), which is configured for accommodating a coolant, is formed in the plastic body (3). A flange-shaped section (3a) of the plastic body (3) is formed axially between a first housing cover (2a) and a housing shell section (2c) of the multiple-piece housing (2). The at least one electrical line (17a, 17b, 17c) and the at least one channel (8) are formed in the flange-shaped section (3a).
    Type: Application
    Filed: March 4, 2020
    Publication date: August 4, 2022
    Inventors: Timo Wehlen, Eckhardt Lübke, Andreas Hölscher, Martin Jelinewski, Manfred Till
  • Publication number: 20220219520
    Abstract: A drive device (2) for an at least partially electrically driven vehicle (1) includes an electric machine (3) having a rotor shaft (8) extending longitudinally along an input axis (4). The drive device further includes a first output shaft (6a) extending longitudinally along an output axis (7) and parallel to the rotor shaft (8). Moreover, the drive device includes a gear stage (5) having a first gearwheel (9) rotationally fixed to the rotor shaft (8), and a second gearwheel (10) meshed with the first gearwheel (9) and drivingly connected to the first output shaft (6a). Additionally, the drive device includes a housing (11) having a shared housing cavity (12), wherein the first output shaft (6a) and the electric machine (3) are parallel to one another in the housing cavity (12), and wherein an air gap (18) extends radially between the electric machine (3) and the first output shaft (6a).
    Type: Application
    Filed: November 22, 2021
    Publication date: July 14, 2022
    Inventors: Timo Wehlen, Michael Roske, Sabine Sielemann, Wolfgang Rieger, Ulrich Kehr, Eckhardt Lübke
  • Publication number: 20220221046
    Abstract: A device (1) for cooling and lubricating components of a vehicle (2) may include a housing (3), a coolant sump (4), a coolant pump (5) for pumping coolant (6) from the coolant sump (4), a heat exchanger (7) for cooling coolant (6) from the coolant pump (5), and a coolant line system (8) including a coolant reservoir (9) having a single coolant inlet (10) and multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5). The coolant line system (8) fluidically connects the coolant pump (5) to the heat exchanger (7), and the heat exchanger (7) to the single coolant inlet (10) of the coolant reservoir (9). The coolant reservoir (9) receives coolant (6) from the heat exchanger (7) via the single coolant inlet (10) and directs coolant (6) via the multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5) onto components in the housing (3) requiring cooling and lubrication.
    Type: Application
    Filed: December 28, 2021
    Publication date: July 14, 2022
    Inventors: Michael Roske, Sabine Sielemann, Eckhardt Lübke, Stephan Scharr, Danny Grusser, Wolfgang Rieger, Ulrich Kehr, Timo Wehlen, Andreas Hölscher, Martin Jelinewski
  • Publication number: 20220205520
    Abstract: The disclosure relates to a transmission comprising an input shaft, a first output shaft, a second output shaft, a first planetary gear set, and a second planetary gear set which is connected to the first planetary gear set. Each of the planetary gear sets comprise multiple elements, wherein the first output shaft is rotationally fixed to a second element of the first planetary gear set, the second output shaft is rotationally fixed to a third element of the second planetary gear set, a third element of the first planetary gear set is rotationally fixed to a first element of the second planetary gear set via a shaft, and a second element of the second planetary gear set is secured to a rotationally fixed component.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 30, 2022
    Inventors: Stefan Beck, Matthias Reisch, Eckhardt Lübke, Timo Wehlen
  • Publication number: 20220196121
    Abstract: A transmission arrangement (16) for an at least partially electrically driven vehicle (1) includes a first electric machine (3a) defining a first central longitudinal axis (9a) and having a first gear stage (6a) and a second gear stage (7a). The arrangement further includes a second electric machine (3b) defining a second longitudinal axis (9b) and having a first gear stage (6b) and a second gear stage (7b). Further, the arrangement includes a transmission housing (2), with the first and second electric machines (3a, 3b) being arranged in the transmission housing (2). Additionally, the arrangement includes a differential (8) drivingly connected to the second gear stages (7a, 7b) of the first and second electric machines (3a, 3b). The first and second central longitudinal axes (9a, 9b) are axially parallel to each other on a circular path (10) perpendicular to an output axis (5).
    Type: Application
    Filed: December 17, 2021
    Publication date: June 23, 2022
    Inventors: Timo Wehlen, Stephan Scharr, Eckhardt Lübke, Manfred Till
  • Publication number: 20220190655
    Abstract: An electric machine (1) may include a multi-piece housing (2) including a first housing end-face section (2a), a second housing end-face section (2b), and a housing shell section (2c) axially between the first and second housing end-face sections (2a, 2b). The electric machine (1) may further include a stator (4) fixed relative to the housing (2) proximate at least one of the first and second housing end-face sections (2a, 2b). Additionally, the electric machine (1) may include a rotor (5) radially within the stator (4). At least one of the first and second housing end-face sections (2a, 2b) has at least one axial ridge (14a) protruding axially into the stator (4) and rotationally fixed to an inner circumferential surface (15) of the stator (4) to support torque of the stator (4).
    Type: Application
    Filed: March 4, 2020
    Publication date: June 16, 2022
    Inventors: Timo Wehlen, Eckhardt Lübke, Andreas Hölscher, Martin Jelinewski, Manfred Till, Ulrich Kehr
  • Publication number: 20220166280
    Abstract: An electric machine includes a housing, a stator, a rotor arranged radially within the stator, and a plastic body fixing the stator relative to the housing. The plastic body is electrically insulating. Further, the plastic body radially surrounds an outside of at least one soft magnetic core of the stator and first and second winding overhangs of the stator, and axially surrounds an end face of the first winding overhangs and an end face of the second winding overhangs. Additionally, the plastic body defines at least one channel for accommodating a coolant, the at least one channel having a first portion extending circumferentially along at least 40% of the end face of the first winding overhangs, a second portion extending along an outer circumferential surface of the stator, and a third portion extending circumferentially along at least 40% of the end face of the second winding overhangs.
    Type: Application
    Filed: March 4, 2020
    Publication date: May 26, 2022
    Inventors: Timo Wehlen, Eckhardt Lübke, Andreas Hölscher, Martin Jelinewski, Manfred Till
  • Patent number: 11215271
    Abstract: A toothing arrangement (1) includes at least one first helical-cut spur gear (3) and a second helical-cut spur gear (4), which form a common meshing toothing, and as least one thrust collar (7) with two races (8, 9) for axial load compensation on both sides in the region of the meshing toothing. The annular thrust collar (7) includes an internal gearing (10), which, in the mounted state, is supported in a circumferential groove (11) interrupting the tooth system (5) of the first spur gear (3). At least one rotation prevention means is associated with the thrust collar (7). The rotation prevention means is movable from a radially inner region to a radially outer region of the first spur gear (3) into an interlock position. A transmission may include the toothing arrangement.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: January 4, 2022
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Matthias Reisch, Christoph Erkens, Eckhardt Lübke, Martin Rattay, Marc Seeberger
  • Patent number: 11181195
    Abstract: A gearwheel (10), in particular a parking interlock gear for a parking lock arrangement, includes an annular body with a radially acting first toothing (2), arranged on the outer circumference of the annular body (1), for the engagement of a locking pawl, an axially acting second toothing (3), arranged on a face end of the annular body and including a plurality of teeth (5) with oblique tooth flanks (5a, 5b), for the engagement of a corresponding axially acting third toothing (42), which includes teeth (44) with oblique tooth flanks (44a, 44b), of a shaft (40). A parking lock arrangement also includes the gearwheel.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: November 23, 2021
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Ulrich Kehr, Eckhardt Lübke, Matthias Reisch, Tobias Baum
  • Publication number: 20210180684
    Abstract: An oil supply arrangement of a vehicle with an electric machine in a housing with at least one oil volume connected to an oil volume of a transmission housing of the vehicle for oil supply. The oil volume of the electric machine is divided into at least two oil supply spaces to compensate an oil level in the housing. A first oil supply space is arranged at a side of the housing facing the driving direction of the vehicle and a second oil supply space is arranged at a side of the housing opposite the driving direction of the vehicle.
    Type: Application
    Filed: July 2, 2018
    Publication date: June 17, 2021
    Inventors: Timo Wehlen, Ingrid Reh, Ulrich Kerr, Wolfgang Reiger, Stephan Scharr, Eckhardt Lübke, Marc Schieß, Florian Dichtl
  • Publication number: 20210095742
    Abstract: A gear transmission includes a first helical-cut gearwheel (1) and a second helical-cut gearwheel (2) engaged for transmitting torques in different directions. The first gearwheel (1) and the second gearwheel (2) each include corresponding ring-shaped thrust collars (4, 5), and corresponding thrust collars (4, 5) each form a race (8, 9, 10, 11) having an overlap region. A first race (8) and a second race (9) form an overlap region for traction torques, and a third race (10) and a fourth race (11) form an overlap region for overrun torques. Each overlap region includes a contact surface or a contact point (14, 15), and each contact point (14, 15) is situated on a contact circle diameter (16, 17). The contact surfaces or contact points (8, 9) for traction torques and the contact surfaces or contact points (10, 11) for overrun torques are radially offset.
    Type: Application
    Filed: November 16, 2018
    Publication date: April 1, 2021
    Inventors: Matthias Reisch, Christoph Erkens, Eckhardt Lübke, Martin Rattay, Marc Seeberger