Patents by Inventor Erwin Wack
Erwin Wack 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).
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Publication number: 20220252132Abstract: Torsional vibration damper for a drivetrain of a motor vehicle, having a primary element rotatable around a rotational axis and a secondary element rotatable relative to the primary element against an energy storage. The energy storage includes a helical compression spring unit. The helical compression spring unit is provided in a spring channel, and the helical compression spring unit includes an outer spring. The outer spring is formed as an arc spring and an inner spring is provided inside of the outer spring and virtually coaxial to the outer spring. The inner spring when disassembled from the helical compression spring unit is formed as a straight helical compression spring. The inner spring has a winding direction that is opposed to a winding direction of the outer spring and the inner spring when installed in the torsional vibration damper, is shorter than the outer spring by a value of x.Type: ApplicationFiled: February 19, 2020Publication date: August 11, 2022Inventors: Stojan CEGAR, Johannes MANTEL, Thomas KRÜGER, Johnathon SHAUM, Erwin WACK, Mario KENSY, Matthias ALBERT, Branka MUNRO, Christian WICKEL
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Publication number: 20200309232Abstract: A torque transmission arrangement for a powertrain of a motor vehicle includes an input and an output. A torque path runs from the input to the output. A torsional vibration damping unit is positioned first, followed by a gear unit, along the torque path between the input and the output. A first slip arrangement and/or a second slip arrangement for generating a speed slip are/is provided in the torque path between the input and the output for vibration damping.Type: ApplicationFiled: May 29, 2017Publication date: October 1, 2020Inventors: Tobias HÖCHE, Tobias DIECKHOFF, Daniel LORENZ, Andreas ORLAMÜNDER, Ingrid HOFFELNER, Wolfgang GROSSPIETSCH, Steffen MATSCHAS, Johannes FRIESS, Christofer EBERT, Matthias KRAM, Dennis EGLER, Axel ROHM, Erwin WACK, Bernd UNSELD, Thomas DOGEL, Matthias REISCH
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Publication number: 20200247229Abstract: 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: ApplicationFiled: September 6, 2018Publication date: August 6, 2020Inventors: 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
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Patent number: 10704619Abstract: A method for the transmission and damping of a mean torque with a superposed alternating torque in an arrangement having an input and an output. The mean torque and superposed alternating torque are transmitted along a path from the input to the output. A slip arrangement is provided in the torque path between the input and the output for transmitting mean torque and superposed alternating torque and for generating a speed slip between an input speed and an output speed in the path. The slip arrangement provides a maximum of an external activation of the speed slip in the area of the maxima of at least one periodic oscillation component of the alternating component and provides a minimum of an external activation of the speed slip in the area of the minima of at least one periodic oscillation component of the alternating component.Type: GrantFiled: May 29, 2017Date of Patent: July 7, 2020Assignee: ZF Friedrichshafen AGInventors: Tobias Höche, Tobias Dieckhoff, Daniel Lorenz, Andreas Orlamünder, Ingrid Hoffelner, Wolfgang Grosspietsch, Steffen Matschas, Johannes Friess, Christofer Ebert, Matthias Kram, Dennis Egler, Axel Rohm, Erwin Wack, Bernd Unseld, Thomas Dögel, Matthias Reisch, Christoph Sasse, Mathais Kopp
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Patent number: 10704621Abstract: A method for the transmission and damping of a mean torque with a superposed alternating torque having an input and an output. The mean and superposed alternating torque is transmitted along a torque path from the input to the output area. An input speed is a mean speed and a superposed alternating component. A slip arrangement is provided in the torque path between the input and the output for transmitting the mean and superposed alternating torque and generating a speed slip between an input speed and an output speed. The slip arrangement provides a maximum of an external activation of the speed slip in a area of the maxima of at least one periodic oscillation component of the alternating component and provides a minimum of an external activation of the speed slip in an area of the minima of at least one periodic oscillation component of the alternating component.Type: GrantFiled: May 29, 2017Date of Patent: July 7, 2020Assignee: ZF Friedrichshafen AGInventors: Tobias Höche, Tobias Dieckhoff, Daniel Lorenz, Andreas Orlamünder, Ingrid Hoffelner, Wolfgang Grosspietsch, Steffen Matschas, Johannes Friess, Christofer Ebert, Matthias Kram, Dennis Egler, Axel Rohm, Erwin Wack, Bernd Unseld, Thomas Dögel, Matthias Reisch, Lukas Spath, Angelika Ebert
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Patent number: 10704620Abstract: A method for transmission of and damping of a mean torque with a superposed alternating torque in a torque transmission arrangement for a powertrain of a motor vehicle having an input and an output. The mean torque with the superposed alternating torque is transmitted along a torque path from the input the output. The input rotates at an input speed and the output rotates at an output speed. A slip arrangement is provided in the torque path between the input and the output for generating a speed slip. The slip arrangement provides a maximum of an external activation of the speed slip in the area of a maxima of at least one periodic oscillation component of an alternating component and provides a minimum of an external activation of the speed slip in the area of a minima of at least one periodic oscillation component of the alternating component (new).Type: GrantFiled: May 29, 2017Date of Patent: July 7, 2020Assignee: ZF Friedrichshafen AGInventors: Tobias Höche, Tobias Dieckhoff, Daniel Lorenz, Andreas Orlamünder, Ingrid Hoffelner, Wolfgang Grosspietsch, Steffen Matschas, Johannes Friess, Christofer Ebert, Matthias Kram, Dennis Egler, Axel Rohm, Erwin Wack, Bernd Unseld, Thomas Dögel, Matthias Reisch, Lukas Spath, Angelika Ebert
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Patent number: 10690218Abstract: A torsional vibration damping arrangement for a drivetrain of a vehicle comprises a rotational mass arrangement which is rotatable around a rotational axis A and a damping arrangement fixed with respect to rotation relative to the rotational axis A. A displacer unit is operatively connected to the primary inertia element on the one side and to the secondary inertia element on the other side. The damping arrangement includes a slave cylinder with a working chamber having a volume V2, and the working chamber of the slave cylinder is operatively connected to the working chamber of the displacer unit. The damping arrangement includes a stiffness arrangement and a damper mass, and the slave cylinder of the damping arrangement is operatively connected to the damper mass by a stiffness arrangement.Type: GrantFiled: December 19, 2016Date of Patent: June 23, 2020Assignee: ZF Friedrichshafen AGInventors: Andreas Orlamünder, Daniel Lorenz, Thomas Dögel, Kyrill Siemens, Erwin Wack, Tobias Dieckhoff, Markus Terwart, Matthias Reisch, Matthias Arzner
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Publication number: 20190219111Abstract: A method for the transmission and damping of a mean torque with a superposed alternating torque in an arrangement having an input and an output. The mean torque and superposed alternating torque are transmitted along a path from the input to the output. A slip arrangement is provided in the torque path between the input and the output for transmitting mean torque and superposed alternating torque and for generating a speed slip between an input speed and an output speed in the path. The slip arrangement provides a maximum of an external activation of the speed slip in the area of the maxima of at least one periodic oscillation component of the alternating component and provides a minimum of an external activation of the speed slip in the area of the minima of at least one periodic oscillation component of the alternating component.Type: ApplicationFiled: May 29, 2017Publication date: July 18, 2019Inventors: Tobias HÖCHE, Tobias DIECKHOFF, Daniel LORENZ, Andreas ORLAMÜNDER, Ingrid HOFFELNER, Wolfgang GROSSPIETSCH, Steffen MATSCHAS, Johannes FRIESS, Christofer EBERT, Matthias KRAM, Dennis EGLER, Axel ROHM, Erwin WACK, Bernd UNSELD, Thomas Dögel, Matthias REISCH, Christoph SASSE, Mathais KOPP
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Publication number: 20190195298Abstract: A method for transmission of and damping of a mean torque with a superposed alternating torque in a torque transmission arrangement for a powertrain of a motor vehicle having an input and an output. The mean torque with the superposed alternating torque is transmitted along a torque path from the input the output. The input rotates at an input speed and the output rotates at an output speed. A slip arrangement is provided in the torque path between the input and the output for generating a speed slip. The slip arrangement provides a maximum of an external activation of the speed slip in the area of a maxima of at least one periodic oscillation component of an alternating component and provides a minimum of an external activation of the speed slip in the area of a minima of at least one periodic oscillation component of the alternating component (new).Type: ApplicationFiled: May 29, 2017Publication date: June 27, 2019Applicant: ZF FRIEDRICHSHAFEN AGInventors: Tobias HÖCHE, Tobias DIECKHOFF, Daniel LORENZ, Andreas ORLAMÜNDER, Ingrid HOFFELNER, Wolfgang GROSSPIETSCH, Steffen MATSCHAS, Johannes FRIESS, Christofer EBERT, Matthias KRAM, Dennis EGLER, Axel ROHM, Erwin WACK, Bernd UNSELD, Thomas DÖGEL, Matthias REISCH, Lukas SPATH, Angelika EBERT
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Publication number: 20190162255Abstract: A method for the transmission and damping of a mean torque with a superposed alternating torque having an input and an output. The mean and superposed alternating torque is transmitted along a torque path from the input to the output area. An input speed is a mean speed and a superposed alternating component. A slip arrangement is provided in the torque path between the input and the output for transmitting the mean and superposed alternating torque and generating a speed slip between an input speed and an output speed. The slip arrangement provides a maximum of an external activation of the speed slip in a area of the maxima of at least one periodic oscillation component of the alternating component and provides a minimum of an external activation of the speed slip in an area of the minima of at least one periodic oscillation component of the alternating component.Type: ApplicationFiled: May 29, 2017Publication date: May 30, 2019Applicant: ZF FRIEDRICHSHAFEN AGInventors: Tobias HÖCHE, Tobias DIECKHOFF, Daniel LORENZ, Andreas ORLAMÜNDER, Ingrid HOFFELNER, Wolfgang GROSSPIETSCH, Steffen MATSCHAS, Johannes FRIESS, Christofer EBERT, Matthias KRAM, Dennis EGLER, Axel ROHM, Erwin WACK, Bernd UNSELD, Thomas DÖGEL, Matthias REISCH, Lukas SPATH, Angelika EBERT
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Publication number: 20190032748Abstract: A torsional vibration damping arrangement for a drivetrain of a vehicle comprises a rotational mass arrangement which is rotatable around a rotational axis A and a damping arrangement fixed with respect to rotation relative to the rotational axis A. A displacer unit is operatively connected to the primary inertia element on the one side and to the secondary inertia element on the other side. The damping arrangement includes a slave cylinder with a working chamber having a volume V2, and the working chamber of the slave cylinder is operatively connected to the working chamber of the displacer unit. The damping arrangement includes a stiffness arrangement and a damper mass, and the slave cylinder of the damping arrangement is operatively connected to the damper mass by a stiffness arrangement.Type: ApplicationFiled: December 19, 2016Publication date: January 31, 2019Applicant: ZF Friedrichshafen AGInventors: Andreas ORLAMÜNDER, Daniel LORENZ, Thomas DÖGEL, Kyrill SIEMENS, Erwin WACK, Tobias DIECKHOFF, Markus TERWART, Matthias REISCH, Matthias ARZNER
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Publication number: 20190024753Abstract: A torsional vibration damping arrangement for a drivetrain of a vehicle includes a rotational mass arrangement which is rotatable around a rotational axis. The rotational mass arrangement includes a primary inertia element which is rotatable around rotational axis A and a secondary inertia element which is rotatable relative to the primary inertia element against the action of an energy storage and further includes a displacer unit with a working chamber. The displacer unit is operatively connected to the primary inertia element or to the secondary inertia element on one side and to a damper mass on the other side.Type: ApplicationFiled: December 19, 2016Publication date: January 24, 2019Inventors: Andreas ORLAMÜNDER, Daniel LORENZ, Thomas DÖGEL, Kyrill SIEMENS, Erwin WACK, Tobias DIECKOFF, Markus TERWART, Matthias REISCH, Matthias ARZNER
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Publication number: 20170284475Abstract: A torsional vibration damper has an input, an output and an intermediate mass arranged therebetween, a first plurality of spring elements coupled between the input and the intermediate mass that form a first stage, a second plurality of spring elements coupled between the intermediate mass and the output that form a second stage of the torsional vibration damper, at least one damper mass to damp the vibration component of the rotational movement. The first stage of the torsional vibration damper has a progressive first characteristic with at least one transition point. The second stage of the torsional vibration damper has a progressive, second characteristic with at least one transition point. All of the transition points of the first characteristic and the second characteristic are spaced apart from one another with respect to torque.Type: ApplicationFiled: August 13, 2015Publication date: October 5, 2017Inventors: Martin HERTEL, Michael WINTERSTEIN, Joerg SUDAU, Armin STÜRMER, Christian WEBER, Christoph SASSE, Thomas KRÜGER, Erwin WACK
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Patent number: 9777817Abstract: A clutch device has a friction transmission element which has a base with at least one friction surface, at least one control element for acting on a damping device, and at least one radial support which cooperates with a stop and has a plurality of lugs which extend at least substantially radially in direction toward the stop and which are at least substantially brought closer to the stop up to a gap before the stop when the friction transmission element is stationary, while, at speed, at least a portion of the lugs comes in contact with the stop. The lugs are connected to the base via a bend which causes an axial offset with respect to the base, the bend allows a displacement of the lugs in direction toward the energy accumulators, and the lugs are completely covered by the stop in an axial extension direction.Type: GrantFiled: May 13, 2016Date of Patent: October 3, 2017Assignee: ZF Friedrichshafen AGInventors: Alexander Strom, Peter Frey, Erwin Wack, Michael Heuler, Christian Wickel
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Publication number: 20160377159Abstract: A clutch device has a friction transmission element which has a base with at least one friction surface, at least one control element for acting on a damping device, and at least one radial support which cooperates with a stop and has a plurality of lugs which extend at least substantially radially in direction toward the stop and which are at least substantially brought closer to the stop up to a gap before the stop when the friction transmission element is stationary, while, at speed, at least a portion of the lugs comes in contact with the stop. The lugs are connected to the base via a bend which causes an axial offset with respect to the base, the bend allows a displacement of the lugs in direction toward the energy accumulators, and the lugs are completely covered by the stop in an axial extension direction.Type: ApplicationFiled: May 13, 2016Publication date: December 29, 2016Inventors: Alexander STROM, Peter FREY, Erwin WACK, Michael HEULER, Christian WICKEL
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Patent number: 9371877Abstract: A spring includes at least one spring portion that extends over an arc of at least 90° when projected onto a cross-sectional area perpendicular to a force direction of the spring in an unloaded condition thereof. The spring portion has an elliptical shape in the projection. A system including one or more springs is also described.Type: GrantFiled: May 1, 2014Date of Patent: June 21, 2016Assignee: ZF Friedrichshafen AGInventors: Stojan Cegar, Erwin Wack
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Patent number: 9151375Abstract: 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: GrantFiled: April 27, 2012Date of Patent: October 6, 2015Assignee: ZF Friedrichshafen AGInventors: Matthias Kram, Michael Wirachowski, Monika Rössner, Jörg Sudau, Erwin Wack, Reinhard Feldhaus, Ralf Fambach
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Patent number: 8960396Abstract: A torsional vibration damper arrangement including a torsional vibration damper with a primary side and a secondary side rotatable with respect to the primary side around an axis of rotation against the action of a damper spring arrangement. One side of the primary side and secondary side includes two cover disk elements and a central disk element arranged between the cover disk elements. The cover disk elements are connected to one another by first connection elements radially inside the damper spring arrangement so as to be fixed axially and so as to transmit torque. The cover disk elements are connected to one another by second connection elements in such a way that they are prevented from moving axially away from one another. No torque can be transmitted between the cover disk elements by the second connection elements.Type: GrantFiled: October 9, 2009Date of Patent: February 24, 2015Assignee: ZF Friedrichshafen AGInventors: Reinhard Feldhaus, Christian Wickel, Norbert Ament, Alexander Markow, Michael Peterseim, Erwin Wack, Thomas Krüger
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Publication number: 20140329607Abstract: A spring includes at least one spring portion that extends over an arc of at least 90° when projected onto a cross-sectional area perpendicular to a force direction of the spring in an unloaded condition thereof. The spring portion has an elliptical shape in the projection. A system including one or more springs is also described.Type: ApplicationFiled: May 1, 2014Publication date: November 6, 2014Inventors: Stojan CEGAR, Erwin Wack
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Patent number: 8465371Abstract: A torsional vibration damper assembly for a hydrodynamic coupling device, in particular a torque converter, comprises a primary side having a plurality of cover disk elements, a secondary side which is rotatable with respect to the primary side about an axis of rotation against the action of a plurality of damper springs, a central disk element engaging between the cover disk elements, and a turbine wheel having a turbine wheel shell. The plurality of cover disk elements are fixedly connected to one another on the radial outer side of the damper springs, and a cover disk element located directly adjacent to the turbine wheel shell is fixedly connected to the turbine wheel shell on the radial inner side of the damper springs by connection elements of a first set of connection elements. The connection elements of the first set of connection elements do not produce a fixed connection between the cover disk elements on the radial inner side of the damper springs.Type: GrantFiled: July 1, 2009Date of Patent: June 18, 2013Assignee: ZF Friedrichshafen AGInventors: Carsten Zuehl, Michael Scordino, Vikas Sinha, Ryan Brookshire, Erwin Wack