Patents by Inventor Steffen Lehmann
Steffen Lehmann 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).
-
TORQUE TRANSMISSION UNIT, METHOD FOR PRODUCING THE TORQUE TRANSMISSION UNIT, AND HYBRID TRANSMISSION
Publication number: 20240151307Abstract: A torque transmission unit is designed to be used in a hybrid transmission of a motor vehicle and includes a shaft configured to mechanically couple to a rotor of a rotary electric machine and a ratchet wheel for a parking lock device configured to block a rotational movement of the torque transmission unit. The rachet wheel includes teeth that, at least in part, have a greater hardness than the shaft. The ratchet wheel is rotationally fixed to the shaft rivets.Type: ApplicationFiled: February 25, 2022Publication date: May 9, 2024Applicant: Schaeffler Technologies AG & Co. KGInventors: Lionel Huber, Steffen Lehmann -
Patent number: 11951974Abstract: A drive unit and a drive assembly and a motor vehicle. The drive unit includes a first electric machine and a second electric machine and an output shaft, wherein a rotor of the second electric machine is connected to the output shaft for conjoint rotation. The drive unit further includes a disconnect clutch by which a rotor of the first electric machine can be connected to the output shaft. The drive unit further includes power electronics for controlling at least one of the two electric machines and a flow system for implementing a flow of a coolant, and the drive unit, being a component in the flow system, further includes a heat exchanger by which the coolant can be cooled. The drive unit and the drive assembly constitute equipment that allows control of individual assemblies in an efficient manner and with a low space requirement.Type: GrantFiled: June 4, 2019Date of Patent: April 9, 2024Assignee: Schaeffler Technologies AG & Co. KGInventors: Steffen Lehmann, Andreas Trinkenschuh, Nicolai Gramann, Christian Silvery, Andreas Bexel, Gregor Muller
-
Publication number: 20240034647Abstract: A device for concentrating and separating Legionella and/or amoebas by acoustophoresis in tap water.Type: ApplicationFiled: July 18, 2023Publication date: February 1, 2024Inventors: Minh Hop NGUYEN, Steffen LEHMANN, Alen PAVLIC, Enrico CAMELIN, Juerg DUAL, Stephan BUERLI, Lucas Raphael ROSENTHALER
-
Patent number: 11884158Abstract: A drive unit and a drive arrangement having the drive unit are provided. The drive unit includes a first electric machine and a second electric machine and an output shaft. A rotor of the second electric machine is connected to the output shaft for conjoint rotation and the drive unit has a separating clutch by which a rotor of the first electric machine is connected to the output shaft for torque transmission. The drive unit furthermore has a first flow system for implementing a flow of a first liquid for at least partial cooling of at least one electric machine and a second flow system for implementing a flow of a second liquid, the first flow system and the second flow system being arranged such that heat from the first liquid in the first flow system is transferred to the second liquid in the second flow system.Type: GrantFiled: June 4, 2019Date of Patent: January 30, 2024Assignee: Schaeffler Technologies AG & Co. KGInventors: Andreas Trinkenschuh, Steffen Lehmann, Carsten Mayer, Marco Grethel
-
Publication number: 20230322071Abstract: A drive unit for a drive train of an electrically drivable motor vehicle, in particular a hybrid motor vehicle, and to a drive assembly. The drive unit is for a drive train of an electrically drivable motor vehicle, and includes a first electric rotary machine for generator operation and a second electric rotary machine for drive motor operation, and a transmission. A rotor of the first electric rotary machine is for direct mechanical coupling to an output element of an internal combustion engine, and a rotor of the second electric rotary machine is or can be rotationally coupled to an input of the transmission, with no torque-transmitting connection being provided between the first electric rotary machine and the transmission.Type: ApplicationFiled: July 20, 2021Publication date: October 12, 2023Applicant: Schaeffler Technologies AG & Co. KGInventors: Alexander VOIT, Steffen LEHMANN
-
Patent number: 11780317Abstract: A drive unit (100) is provided with a first electric machine (110), a second electric machine (120), a first shaft (130) and an output shaft (140). A rotor (111) of the first electric machine (110) is rotationally fixed to the first shaft (130), and a rotor (121) of the second electric machine (120) is rotationally fixed to the output shaft (140). The drive unit (100) also includes a separating clutch (150) and a connection element (230) for the rotationally fixed connecting of an internal combustion engine, and a first gear ratio step (142) is arranged between the connection element (230) and the shafts (130, 140) with a gear ration i<1. The drive unit (100) has an electro-mechanical parking lock unit (1) with which a rotational movement of the output of the first gear ratio step (142) can be blocked.Type: GrantFiled: June 4, 2019Date of Patent: October 10, 2023Assignee: Schaeffler Technologies AG & Co. KGInventors: Andreas Trinkenschuh, Steffen Lehmann, Peter Greb, Laszlo Man
-
Publication number: 20230193963Abstract: A clutch assembly for the powertrain of a motor vehicle, including a housing, a support which is supported in a rotatable manner relative to the housing, an electric machine, the rotor of which is received on the support in a rotationally fixed manner, multiple clutches, each having a clutch component that is received on the support in a rotationally fixed manner, and at least one slave cylinder which acts on one clutch in an actuating manner. A first support bearing which forms part of the mounting of the support is arranged directly between the support and the housing, and an additional second support bearing is arranged at a distance from the first support bearing along a rotational axis of the support. A drive unit including the clutch assembly is also provided.Type: ApplicationFiled: January 29, 2019Publication date: June 22, 2023Applicant: Schaeffler Technologies AG & Co. KGInventors: Dominik WEIS, Steffen LEHMANN
-
Publication number: 20230122123Abstract: A drive unit (100) is provided with a first electric machine (110), a second electric machine (120), a first shaft (130) and an output shaft (140). A rotor (111) of the first electric machine (110) is rotationally fixed to the first shaft (130), and a rotor (121) of the second electric machine (120) is rotationally fixed to the output shaft (140). The drive unit (100) also includes a separating clutch (150) and a connection element (230) for the rotationally fixed connecting of an internal combustion engine, and a first gear ratio step (142) is arranged between the connection element (230) and the shafts (130, 140) with a gear ration i<1. The drive unit (100) has an electro-mechanical parking lock unit (1) with which a rotational movement of the output of the first gear ratio step (142) can be blocked.Type: ApplicationFiled: June 4, 2019Publication date: April 20, 2023Applicant: Schaeffler Technologies AG & Co. KGInventors: Andreas TRINKENSCHUH, Steffen LEHMANN, Peter GREB, Laszlo MAN
-
Publication number: 20230043424Abstract: A drive unit has a first electric rotary machine and a second electric rotary machine as well as a first shaft and a second shaft. The first electric rotary machine is arranged at least partly radially and axially within an area radially delimited by the second electric rotary machine, and the stator of the first electric rotary machine and the stator of the second electric rotary machine are mechanically fixed to each other. The drive unit comprises a coolant supply device which is arranged adjacently to the stators in the axial direction and by means of which coolant can be supplied axially between and/or into the stators.Type: ApplicationFiled: November 5, 2020Publication date: February 9, 2023Applicant: Schaeffler Technologies AG & Co. KGInventor: Steffen Lehmann
-
Publication number: 20230041635Abstract: A drive unit has a first electric rotary machine and a second electric rotary machine as well as a first shaft and a second shaft. A rotor of the first electric rotary machine is rotationally fixed to the first shaft, and a rotor of the second electric rotary machine is rotationally fixed to the second shaft. The drive unit additionally has a separating clutch. One of the two electric rotary machines is arranged at least partly radially and axially within an area radially delimited by the respective other electric rotary machine.Type: ApplicationFiled: October 21, 2020Publication date: February 9, 2023Applicant: Schaeffler Technologies AG & Co. KGInventor: Steffen Lehmann
-
Patent number: 11518231Abstract: A hybrid module for a drive train of a motor vehicle includes a housing, an electric machine disposed within the housing. The electric machine having a stator and a rotor arranged radially within the stator. The hybrid module having at least one hydraulically cooled friction clutch arranged radially within the rotor. A cooling device is provided that is configured to cool a plurality of friction surfaces of the at least one friction clutch and which has an annular collecting region coupled to the rotor for conjoint rotation therewith and entraining a hydraulic medium during operation, as well as a scoop section, which is secured to the housing and projects into the collecting region and via which the hydraulic medium is fed to a retaining chamber during operation.Type: GrantFiled: May 15, 2018Date of Patent: December 6, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Steffen Lehmann, Andreas Trinkenschuh
-
Patent number: 11512440Abstract: A vertical member for a vehicle restraint system is intended for attaching a guard rail of the vehicle restraint system. The vertical member includes a profiled support and a reinforcing support within the profiled support, and the longitudinal axis of the reinforcing support runs substantially parallel to the longitudinal axis of the profiled support.Type: GrantFiled: July 22, 2019Date of Patent: November 29, 2022Assignee: DELTA BLOC INIERNATIONAL GMBHInventors: Thomas Edl, Steffen Lehmann
-
Patent number: 11479106Abstract: A hybrid module includes a first, motor-side pre-assembly group and a second, transmission-side pre-assembly group. A separating clutch is arranged between the motor-side pre-assembly group and the transmission-side pre-assembly group, via which the pre-assembly groups can be connected in a torque-transmitting manner.Type: GrantFiled: May 16, 2018Date of Patent: October 25, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Lionel Huber, Steffen Lehmann, Simon Ortmann, Christian Dinger, Benjamin Vögtle, Dirk Hofstetter, Anton Simonov
-
Publication number: 20220337133Abstract: An electrical drive device includes a machine unit having a machine housing and power electronics having an electronics housing. At least one of the two housings having at least one protrusion for defined positioning of the machine unit and the power electronics against each other during and/or after assembly. The respective other housing having a complementary cut-out in shape and size for receiving the protrusion, wherein material forming the protrusion and the cut-out is electrically conductive at least in some sections. The protrusion and the cut-out are electrically connected to an earth for the purpose of earthing the power electronics or the machine unit. The electrical drive device and the drive assembly equipped therewith allow the electromagnetic compatibility to be optimized in a cost-effective manner.Type: ApplicationFiled: August 25, 2020Publication date: October 20, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Steffen Lehmann, Andreas Trinkenschuh, Dirk Bleckmann, Dominik Weis
-
Publication number: 20220333641Abstract: A torque transmitting system, a drive unit, and a drive assembly are provided. The torque transmitting system includes a torque transmitting element and a support element which supports it via rotary bearings. The torque transmitting element has a first connection device for coupling to a first assembly in a rotationally fixed manner and a second connection device for coupling to a second assembly. One of the two elements forms a substantially hollow cylindrical shoulder, and the respective other element forms the outer cylindrical face and, correspondingly thereto, the inner face of a hollow cylinder radially outwards. The shoulder is arranged between the outer face and the inner face in a radial direction. A first rotary bearing is arranged between the outer face and the shoulder, and a second rotary bearing is arranged between the shoulder and the inner face. By using the torque transmitting system, less axial installation space is.Type: ApplicationFiled: August 26, 2020Publication date: October 20, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Benjamin STOBER, Steffen LEHMANN
-
Patent number: 11465610Abstract: A drive unit for a powertrain of an electrically drivable motor vehicle, in particular a hybrid motor vehicle, is equipped with a first electric machine as well as a second electric machine and a first shaft as well as an output shaft. The drive unit furthermore has a separating clutch and a connection element for connection for conjoint rotation of an internal combustion engine, and wherein at least the first electric machine is operated in generator mode and the nominal rpm n1 of the first electric machine has the following relationship to the nominal rpm n2 of the second electric machine: n1>1.2×n2.Type: GrantFiled: May 29, 2019Date of Patent: October 11, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Andreas Trinkenschuh, Steffen Lehmann
-
Patent number: 11440396Abstract: A hybrid module for a motor vehicle for coupling an internal combustion engine, comprises a first drive shaft, a first electrical machine and a first coupling device, as well as a second drive shaft and, associated therewith, a second electrical machine, and a second coupling device; and further comprises an output element, the first or second drive shaft being connectable to the output element by way of a first or second coupling device, wherein the two coupling devices can be simultaneously actuated by a movement of an actuation element which is mechanically coupled to the two coupling devices. The hybrid module disclosed provides a drive device for a motor vehicle that offers energy-efficient operation in a plurality of different operating modes while requiring a small installation space.Type: GrantFiled: February 4, 2019Date of Patent: September 13, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Benjamin Stober, Dierk Reitz, Steffen Lehmann
-
Patent number: 11433754Abstract: A hybrid module for a drive train of a motor vehicle comprises a housing, a disconnect clutch, and a hydraulic actuating unit cooperating with the disconnect clutch and received on the housing. The module includes an electric motor, wherein a rotor of the electric motor is rotationally coupled to a clutch component of the disconnect clutch. The actuating unit has a piston element, which is received such that it is displaceable relative to the housing and which, via an actuating bearing, is connected to a pressure element such that it is fixed against displacement in an axial direction of the disconnect clutch yet rotatable relative to the pressure element. The pressure element is configured for engagement and disengagement of the disconnect clutch, and the actuating bearing is formed as an axial needle bearing.Type: GrantFiled: July 3, 2018Date of Patent: September 6, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Jonathan Laigo, Steffen Lehmann
-
Patent number: 11401981Abstract: A switching unit for a hybrid module for a drivetrain of a hybrid vehicle is provided. A first clutch is selectively closable to transmit torque from a drive shaft to a first output shaft. A second clutch is selectively closable to transmit torque from the drive shaft to a second output shaft. A plurality of ducts include a cooling oil supply duct, a first cooling oil duct configured to supply cooling oil to the first clutch, and a second cooling oil duct configured to supply cooling oil to the second duct. A switching unit selectively supplies cooling oil to the first and second clutches via the first and second cooling oil ducts, respectively, wherein the switching unit includes a slide having an aperture extending therethrough, and the slide is configured to move to alternatively fluidly the coiling oil supply duct with the first or second cooling oil ducts.Type: GrantFiled: April 12, 2018Date of Patent: August 2, 2022Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Steffen Lehmann, Marc Helfer, Dirk Hofstetter
-
Patent number: 11396226Abstract: A hybrid module for a drive train of a motor vehicle includes a dual clutch which has a first sub-clutch and a second sub-clutch for selectively transmitting torque from a first drive unit to a drive shaft. The hybrid module further includes a disconnect clutch for coupling a second drive unit and for transmitting torque from the second drive unit to the drive shaft. At least one rotary feedthrough is provided which is configured on one hand for conveying actuating oil, which is designed for actuation of the disconnect clutch, or on the other hand for conveying cooling oil, which is designed for cooling the disconnect clutch and/or the dual clutch.Type: GrantFiled: July 5, 2018Date of Patent: July 26, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Andreas Trinkenschuh, Steffen Lehmann, Dirk Hofstetter