Patents by Inventor Michael Wirachowski

Michael Wirachowski 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: 20200247229
    Abstract: A hybrid drive module (1) for a motor vehicle includes a housing (GG), a torque converter (TC), and an electric machine with a rotor (R) and a stator (S). The rotor (R) is arranged on a rotor carrier (RT), which is fixedly connected to a hub (N). The hub (N) is rotatably supported via at least one first bearing (L1) and is supported in radial and axial directions against a bearing shield (LS). The hub (N) is rotationally fixed to a converter housing (TCH) of the torque converter (TC) via a rivet joint (RI) or a screw connection. A drive train for a motor vehicle including such a hybrid drive module (1) is also provided.
    Type: Application
    Filed: September 6, 2018
    Publication date: August 6, 2020
    Inventors: Thomas Riedisser, Robert Reiser, Gerald Viernekes, Jürgen Dacho, Thomas Bauer, Monika Rössner, Stephan Stroph, Linus Eschenbeck, Christopher Allnoch, Erwin Wack, Mario Kensy, Peter Frey, Christian Wickel, Michael Wirachowski
  • Patent number: 10690220
    Abstract: A mass damper system with a damper mass support receives a damper mass. A guide track and damper mass are in operative connection with one another by a coupling element movable in the guide track between a central position in which the coupling element is free from deflection in circumferential direction of the guide tracks and a deflection position out of the central position. The guide tracks and the coupling element are configured for an order that depends on the number of cylinders of the respective exciting drive. The guide tracks are tailored with respect to their geometric configuration for excitations of a virtual order between a first order associated with excitations of a drive with a first number of cylinders and a second order with which are associated with excitations of a drive with a second number of cylinders.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: June 23, 2020
    Assignee: ZF Friedrichshafen AG
    Inventor: Michael Wirachowski
  • Publication number: 20190359049
    Abstract: A torque transmission assembly (20) for a drive system of a vehicle, includes a housing (26), an input-side friction surface arrangement which is coupled to the housing (26) for corotation around a rotational axis (A), an output-side friction surface arrangement which is coupled to a drive member (36) for corotation around the rotational axis (A) and a deflection mass arrangement (50) with a deflection mass carrier (52) and at least one deflection mass (54) supported at the deflection mass carrier (52) and which can be deflected from a basic relative position with respect to the deflection mass carrier (52). The torque transmission assembly (20) does not comprise a torsional vibration damper arrangement, and/or the deflection mass carrier (52) is connected to the housing (26) so as to be fixed with respect to rotation relative to the housing for corotation around the rotational axis (A).
    Type: Application
    Filed: December 18, 2017
    Publication date: November 28, 2019
    Inventors: Michael WIRACHOWSKI, Sebastian NEUGEBAUER, Andreas ORLAMÜNDER, Christoph SASSE, Christoph FAUSS, Stefan HERZOG
  • Patent number: 10487910
    Abstract: A tuned mass vibration damper for damping a vibration component of a rotational movement, includes at least three damper masses, at least one guide component part to movably guide the at least three damper masses such that the damper masses are arranged so as to be offset along a circumferential direction perpendicular to an axis of rotation and can carry out the oscillations, and a damping component part rotatable around the axis of rotation of the rotational movement opposite to the at least one guide component part and which comprises a support structure and at least two damping structures connected to the support structure. The damping structures extend radially from the support structure and are constructed and arranged such that one damping structure of the at least two damping structures when making contact with one of two adjacent damper masses prevents a contact of the two adjacent damper masses.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: November 26, 2019
    Assignee: ZF Friedrichshafen AG
    Inventors: Kyrill Siemens, Michael Wirachowski
  • Patent number: 10393223
    Abstract: A coupling arrangement is provided with a vibration reduction device and with a clutch device. The vibration reduction device has at least one torsional vibration damper, an input connected to a drive, and an output connected to the clutch device by which a connection between the vibration reduction device and a driven end is at least substantially produced in a first operating state, and this connection is at least substantially cancelled in a second operating state. The vibration reduction device has a mass damper system that cooperates with the torsional vibration damper and is connected to the output of the vibration reduction device.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: August 27, 2019
    Assignee: ZF Friedrichshafen AG
    Inventors: Martin Hertel, Christian Weber, Joerg Sudau, Thomas Bauer, Michael Winterstein, Michael Wirachowski, Axel Rohm, Oliver Andres, Christian Wickel, Florian Postler, Matthias Kram, Nathalie Werner
  • Patent number: 10100898
    Abstract: A torsional vibration damper has a damper mass carrier at which is received at least one damper mass movable relative to the damper mass carrier and with at least one stop. The at least one damper mass has a stop side with a geometric shaping. At least one stop is associated with the damper mass, and has an axial overlap with the at least one damper mass in extension direction of a central axis and a stop profile at its side facing the stop side of the damper mass. At least one stop receiver is associated with the least one stop for the at least one damper mass. The geometric shaping which is provided at the at least one damper mass has a first contact region operative at least substantially in radial direction and a second contact region operative at least substantially in tangential direction. The first contact region can be brought into operative connection with the stop, and the second contact region can be brought into operative connection with the stop receiver.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: October 16, 2018
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Kram, Volker Stampf, Jörg Sudau, Christoph Sasse, Armin Stürmer, Michael Wirachowski, Ying Dong, Friedrich Kokott, Daniel Pittner, Oliver Andres, Simone Vierneusel, Dennis Egler
  • Patent number: 9909644
    Abstract: A tuned mass vibration damper for damping a vibration component of a rotational movement, has at least one guide component part configured to movably guide the damper masses such that the damper masses are offset along a circumferential direction, and a dimensionally stable spacer component part that is rotatable relative to the guide component part and which has a positive engagement connection with clearance with the damper masses that are configured such that, starting from a center position of the damper masses with respect to the spacer component part, when one of the damper masses executes an oscillation which overcomes a clearance in the connections of two of the damper masses with respect to the spacer component part, the spacer component part is rotated along the circumferential direction such that it drives the other damper mass of the two damper masses along the circumferential direction.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: March 6, 2018
    Assignee: ZF Friedrichshafen AG
    Inventors: Stojan Cegar, Michael Wirachowski, Kyrill Siemens
  • Publication number: 20180045268
    Abstract: A tuned mass vibration damper (300), for example, for a drivetrain of a motor vehicle, for damping a vibration component of a rotational movement, includes at least three damper masses (110), at least one guide component part (130) to movably guide the at least three damper masses (110) such that the damper masses (110) are arranged so as to be offset along a circumferential direction (160) perpendicular to an axis of rotation (140) and can carry out the oscillations, and a damping component part (310) rotatable around the axis of rotation (140) of the rotational movement opposite to the at least one guide component part (130) and which comprises a support structure (340) and at least two damping structures (350) connected to the support structure (340).
    Type: Application
    Filed: August 15, 2017
    Publication date: February 15, 2018
    Inventors: Kyrill Siemens, Michael Wirachowski
  • Patent number: 9726254
    Abstract: A tuned mass vibration damper included at least one damper mass and at least one guide component part to movably guide the at least one damper mass. The damper mass has a retaining component part which is at least partially arranged in a receiving recess of the damper mass. The retaining component part has at least one retaining structure and the at least one guide component part has at least one mating retaining structure to limit a movement of the at least one damper mass relative to the at least one guide component part in that the retaining structure and the mating retaining structure come in contact with one another. The at least one damper mass drives the retaining component part during a movement of the damper mass along a circumferential direction and to allow a relative movement of the retaining component part (350) with respect to the damper mass which results in a change in a radial distance of the retaining structure from the axis of rotation.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: August 8, 2017
    Assignee: ZF Friedrichshafen AG
    Inventors: Kyrill Siemens, Michael Wirachowski
  • Publication number: 20170219048
    Abstract: A coupling arrangement is provided with a vibration reduction device and with a clutch device. The vibration reduction device has at least one torsional vibration damper, an input connected to a drive, and an output connected to the clutch device by which a connection between the vibration reduction device and a driven end is at least substantially produced in a first operating state, and this connection is at least substantially cancelled in a second operating state. The vibration reduction device has a mass damper system that cooperates with the torsional vibration damper and is connected to the output of the vibration reduction device.
    Type: Application
    Filed: September 15, 2015
    Publication date: August 3, 2017
    Applicant: ZF FRIEDRICHSHAGEN AG
    Inventors: Martin HERTEL, Christian WEBER, Joerg SUDAU, Thomas BAUER, Michael WINTERSTEIN, Michael WIRACHOWSKI, Axel ROHM, Oliver ANDRES, Christian WICKEL, Florian POSTLER, Matthias KRAM, Nathalie WERNER
  • Patent number: 9638283
    Abstract: A torsional vibration damper is provided with a damper mass carrier at which is received at least one damper mass that is movable relative to the damper mass carrier and at least one stop. The at least one stop is associated with each stop side of the at least one damper mass. The at least one damper mass and the stop have an extension in extension direction of a central axis. The at least one damper mass has a plurality of damper mass elements in extension direction of the central axis, while the stop has in extension direction of the central axis a stop profile at its side facing the stop sides of the damper mass elements. The stop profile has different radial distances from the central axis in association with the damper mass elements.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: May 2, 2017
    Assignee: ZF Friedrichshafen AG
    Inventors: Michael Wirachowski, Matthias Kram, Ying Dong, Volker Stampf, Jörg Sudau, Armin Stürmer, Friedrich Kokott, Christoph Sasse, Daniel Pittner, Oliver Andres, Simone Vierneusel, Dennis Egler, Kyrill Siemens
  • Publication number: 20160298721
    Abstract: A tuned mass vibration damper for damping a vibration component of a rotational movement, has at least one guide component part configured to movably guide the damper masses such that the damper masses are offset along a circumferential direction, and a dimensionally stable spacer component part that is rotatable relative to the guide component part and which has a positive engagement connection with clearance with the damper masses that are configured such that, starting from a center position of the damper masses with respect to the spacer component part, when one of the damper masses executes an oscillation which overcomes a clearance in the connections of two of the damper masses with respect to the spacer component part, the spacer component part is rotated along the circumferential direction such that it drives the other damper mass of the two damper masses along the circumferential direction.
    Type: Application
    Filed: February 19, 2014
    Publication date: October 13, 2016
    Inventors: Stojan CEGAR, Michael WIRACHOWSKI, kyrill SIEMENS
  • Publication number: 20160273614
    Abstract: A mass damper system with a damper mass support receives a damper mass. A guide track and damper mass are in operative connection with one another by a coupling element movable in the guide track between a central position in which the coupling element is free from deflection in circumferential direction of the guide tracks and a deflection position out of the central position. The guide tracks and the coupling element are configured for an order that depends on the number of cylinders of the respective exciting drive. The guide tracks are tailored with respect to their geometric configuration for excitations of a virtual order between a first order associated with excitations of a drive with a first number of cylinders and a second order with which are associated with excitations of a drive with a second number of cylinders.
    Type: Application
    Filed: October 7, 2014
    Publication date: September 22, 2016
    Inventor: Michael WIRACHOWSKI
  • Publication number: 20160131220
    Abstract: A tuned mass vibration damper included at least one damper mass and at least one guide component part to movably guide the at least one damper mass. The damper mass has a retaining component part which is at least partially arranged in a receiving recess of the damper mass. The retaining component part has at least one retaining structure and the at least one guide component part has at least one mating retaining structure to limit a movement of the at least one damper mass relative to the at least one guide component part in that the retaining structure and the mating retaining structure come in contact with one another. The at least one damper mass drives the retaining component part during a movement of the damper mass along a circumferential direction and to allow a relative movement of the retaining component part (350) with respect to the damper mass which results in a change in a radial distance of the retaining structure from the axis of rotation.
    Type: Application
    Filed: June 12, 2014
    Publication date: May 12, 2016
    Inventors: Kyrill SIEMENS, Michael WIRACHOWSKI
  • Publication number: 20160033003
    Abstract: A tuned mass vibration damper (300), for example, for a drivetrain of a motor vehicle, for damping a vibration component of a rotational movement, includes at least three damper masses (110), at least one guide component part (130) to movably guide the at least three damper masses (110) such that the damper masses (110) are arranged so as to be offset along a circumferential direction (160) perpendicular to an axis of rotation (140) and can carry out the oscillations, and a damping component part (310) rotatable around the axis of rotation (140) of the rotational movement opposite to the at least one guide component part (130) and which comprises a support structure (340) and at least two damping structures (350) connected to the support structure (340).
    Type: Application
    Filed: February 19, 2014
    Publication date: February 4, 2016
    Inventors: Kyrill SIEMENS, Michael WIRACHOWSKI
  • Publication number: 20150316124
    Abstract: A torsional vibration damper is provided with a damper mass carrier at which is received at least one damper mass that is movable relative to the damper mass carrier and at least one stop. The at least one stop is associated with each stop side of the at least one damper mass. The at least one damper mass and the stop have an extension in extension direction of a central axis. The at least one damper mass has a plurality of damper mass elements in extension direction of the central axis, while the stop has in extension direction of the central axis a stop profile at its side facing the stop sides of the damper mass elements. The stop profile has different radial distances from the central axis in association with the damper mass elements.
    Type: Application
    Filed: September 30, 2013
    Publication date: November 5, 2015
    Inventors: Michael WIRACHOWSKI, Matthias KRAM, Ying DONG, Volker STAMPF, Jörg SUDAU, Armin STÜRMER, Friedrich KOKOTT, Christoph SASSE, Daniel PITTNER, Oliver ANDRES, Simone VIERNEUSEL, Dennis EGLER, Kyrill SIEMENS
  • Publication number: 20150285332
    Abstract: A torsional vibration damper has a damper mass carrier at which is received at least one damper mass movable relative to the damper mass carrier and with at least one stop. The at least one damper mass has a stop side with a geometric shaping. At least one stop is associated with the damper mass, and has an axial overlap with the at least one damper mass in extension direction of a central axis and a stop profile at its side facing the stop side of the damper mass. At least one stop receiver is associated with the least one stop for the at least one damper mass. The geometric shaping which is provided at the at least one damper mass has a first contact region operative at least substantially in radial direction and a second contact region operative at least substantially in tangential direction. The first contact region can be brought into operative connection with the stop, and the second contact region can be brought into operative connection with the stop receiver.
    Type: Application
    Filed: September 30, 2013
    Publication date: October 8, 2015
    Inventors: Matthias Kram, Volker Stampf, Jörg Sudau, Christoph Sasse, Armin Stürmer, Michael Wirachowski, Ying Dong, Friedrich Kokott, Daniel Pittner, Oliver Andres, Simone Vierneusel, Dennis Egler
  • Patent number: 9151375
    Abstract: A hydrodynamic coupling arrangement, particularly hydrodynamic torque converter, wherein at least one torsional vibration damper arrangement comprises at least two torsional vibration dampers which are arranged so as to be radially staggered and substantially aligned axially with respect to one another, wherein the first torsional vibration damper is arranged on the radially outer side of the second torsional vibration damper, and wherein the at least one torsional vibration damper arrangement is coupled with the other torsional vibration damper arrangement in an area radially between the first damper element unit and the second damper element unit.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: October 6, 2015
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Kram, Michael Wirachowski, Monika Rössner, Jörg Sudau, Erwin Wack, Reinhard Feldhaus, Ralf Fambach
  • Publication number: 20120273317
    Abstract: A hydrodynamic coupling arrangement, particularly hydrodynamic torque converter, wherein at least one torsional vibration damper arrangement comprises at least two torsional vibration dampers which are arranged so as to be radially staggered and substantially aligned axially with respect to one another, wherein the first torsional vibration damper is arranged on the radially outer side of the second torsional vibration damper, and wherein the at least one torsional vibration damper arrangement is coupled with the other torsional vibration damper arrangement in an area radially between the first damper element unit and the second damper element unit.
    Type: Application
    Filed: April 27, 2012
    Publication date: November 1, 2012
    Applicant: ZF Friedrichshafen AG
    Inventors: Matthias KRAM, Michael Wirachowski, Monika Rössner, Jörg Sudau, Erwin Wack, Reinhard Feldhaus, Ralf Fambach