Patents by Inventor Alexander Markow
Alexander Markow 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: 20230271499Abstract: An electric drive for may have at least one electric machine in a housing with a rotor shaft forming the drive shaft, which can be coupled to an intermediate shaft via at least one spur gear, wherein the intermediate shaft is coupled to an output differential for driving output shafts, wherein there is at least one oil pump for pumping transmission fluid, wherein a pump shaft in the oil pump can be driven in the same direction of rotation via a first drive path, which has at least one first freewheel, and via a second drive path, which has at least one second freewheel and at least one differential, and wherein at least the first freewheel and the second freewheel, as well as the differential, are located radially inside the hollow intermediate shaft.Type: ApplicationFiled: February 11, 2021Publication date: August 31, 2023Applicant: ZF Friedrichshafen AGInventor: Alexander Markow
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Patent number: 10988020Abstract: A drivetrain module for a motor vehicle having a clutch with an input area and an output area. A mutual rotational driving of the input area and output area is influenceable by the action of the clutch. The clutch has a clutch housing with a clutch space formed therein. The input area and the output area are arranged at least partially in the clutch space. The clutch space is filled and is closed to be tight against fluid relative to a surrounding area of the clutch space. The clutch has a pressure compensation device for compensation of a pressure difference acting between the clutch space and the surrounding area.Type: GrantFiled: August 10, 2018Date of Patent: April 27, 2021Assignee: ZF Friedrichshafen AGInventors: Alexander Markow, Gerald Viernekes
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Publication number: 20200171939Abstract: A drivetrain module for a motor vehicle having a clutch with an input area and an output area. A mutual rotational driving of the input area and output area is influenceable by the action of the clutch. The clutch has a clutch housing with a clutch space formed therein. The input area and the output area are arranged at least partially in the clutch space. The clutch space is filled and is closed to be tight against fluid relative to a surrounding area of the clutch space. The clutch has a pressure compensation device for compensation of a pressure difference acting between the clutch space and the surrounding area.Type: ApplicationFiled: August 10, 2018Publication date: June 4, 2020Inventors: Alexander MARKOW, Gerald VIERNEKES
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Patent number: 10436259Abstract: An axially actuatable positive engagement clutch which includes an input shaft with an input toothing and an output shaft with an output toothing. An axially displaceable connection element can occupy a meshing position which is located in an actuation path (s) between the open position and the closed position and in which the driving toothing engages with the input toothing or the output toothing for the first time during the transition from the open position into the closed position. An actuation device is configured to displace the connection element from the closed position to the open position, and an elastic return element which applies a restoring force to the connection element in direction of the closed position. The return element has a force/deflection characteristic with a local force maximum (F1) which coincides in the actuation path (s) at least approximately with the meshing position of the connection element.Type: GrantFiled: November 8, 2016Date of Patent: October 8, 2019Assignee: ZF Friedrichshafen AGInventors: Martin Ruider, Michael Pantke, Johannes Winkler, Matthias Cudok, Martin Hain, Alexander Markow
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Patent number: 10391850Abstract: An assembly for a motor vehicle has an electric machine and a clutch actuating device. The electric machine has a machine housing, a rotor and a stator. The stator includes a stator carrier with a fluid cooling jacket constructed substantially as an annular space, a fluid inlet, and a fluid outlet spaced apart from the fluid inlet. The stator encloses a central receiving space in which a pressure medium cylinder of the clutch actuating device is arranged. The pressure medium cylinder has a pressure medium inlet arranged inside the axial extension of the stator carrier and can be brought into fluidic connection with, or is fluidically connected with, a pressure source via a pressure medium channel extending from the machine housing. The pressure medium channel is constructed at least partially in a wall portion of the stator carrier adjoining the central receiving space.Type: GrantFiled: March 30, 2015Date of Patent: August 27, 2019Assignee: ZF Friedrichshafen AGInventor: Alexander Markow
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Publication number: 20180347641Abstract: An axially actuatable positive engagement clutch which includes an input shaft with an input toothing and an output shaft with an output toothing. An axially displaceable connection element can occupy a meshing position which is located in an actuation path (s) between the open position and the closed position and in which the driving toothing engages with the input toothing or the output toothing for the first time during the transition from the open position into the closed position. An actuation device is configured to displace the connection element from the closed position to the open position, and an elastic return element which applies a restoring force to the connection element in direction of the closed position. The return element has a force/deflection characteristic with a local force maximum (F1) which coincides in the actuation path (s) at least approximately with the meshing position of the connection element.Type: ApplicationFiled: November 8, 2016Publication date: December 6, 2018Inventors: Martin RUIDER, Michael PANTKE, Johannes WINKLER, Matthias CUDOK, Martin HAIN, Alexander MARKOW
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Patent number: 10097063Abstract: Constructional unit includes an electric machine with a stator and with a rotatable rotor, a rotatable output element operatively communicates with the rotor to transmit torque, and an offset arrangement. The offset arrangement is arranged between the rotor and the output element, and the transmission of torque is enabled in case of an axial offset and/or an angular offset between a rotational axis of the rotor and a rotational axis of the output element.Type: GrantFiled: September 19, 2014Date of Patent: October 9, 2018Assignee: ZF Friedrichshafen AGInventors: Wolfgang Grosspietsch, Gerald Viernekes, Alexander Markow
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Publication number: 20170190244Abstract: An assembly for a motor vehicle has an electric machine and a clutch actuating device. The electric machine has a machine housing, a rotor and a stator. The stator includes a stator carrier with a fluid cooling jacket constructed substantially as an annular space, a fluid inlet, and a fluid outlet spaced apart from the fluid inlet. The stator encloses a central receiving space in which a pressure medium cylinder of the clutch actuating device is arranged. The pressure medium cylinder has a pressure medium inlet arranged inside the axial extension of the stator carrier and can be brought into fluidic connection with, or is fluidically connected with, a pressure source via a pressure medium channel extending from the machine housing. The pressure medium channel is constructed at least partially in a wall portion of the stator carrier adjoining the central receiving space.Type: ApplicationFiled: March 30, 2015Publication date: July 6, 2017Inventor: Alexander MARKOW
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Patent number: 9479027Abstract: A drive unit for a motor vehicle includes an electric machine which has a stator, a rotor and clutch for producing a rotary driving connection of the rotor to a drive element. The clutch has a release member which is axially displaceable by an actuating device arranged at least partially in a receiving space surrounded by the stator. The actuating device has an electric actuator drive motor and an actuator drive shaft directed transverse to the axis of rotation of the drive unit. The actuator drive shaft is operatively connected to a release arrangement which includes a rotatable input element which is fixed axially relative to the release member and an output element which is axially displaceable relative to the input element and which is operatively connected to the release member.Type: GrantFiled: September 17, 2013Date of Patent: October 25, 2016Assignee: ZF Friedrichshafen AGInventors: Andreas Ratte, Gerald Viernekes, Alexander Markow
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Publication number: 20160226336Abstract: Constructional unit includes an electric machine with a stator and with a rotatable rotor, a rotatable output element operatively communicates with the rotor to transmit torque, and an offset arrangement. The offset arrangement is arranged between the rotor and the output element, and the transmission of torque is enabled in case of an axial offset and/or an angular offset between a rotational axis of the rotor and a rotational axis of the output element.Type: ApplicationFiled: September 19, 2014Publication date: August 4, 2016Inventors: Wolfgang GROSSPIETSCH, Gerald VIERNEKES, Alexander MARKOW
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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: 20140077641Abstract: A drive unit for a motor vehicle includes an electric machine which has a stator, a rotor and clutch for producing a rotary driving connection of the rotor to a drive element. The clutch has a release member which is axially displaceable by means of an actuating device arranged at least partially in a receiving space surrounded by the stator. The actuating device has an electric actuator drive motor and an actuator drive shaft directed transverse to the axis of rotation of the drive unit. The actuator drive shaft is operatively connected to a release arrangement which includes a rotatable input element which is fixed axially relative to the release member and an output element which is axially displaceable relative to the input element and which is operatively connected to the release member.Type: ApplicationFiled: September 17, 2013Publication date: March 20, 2014Inventors: Andreas Ratte, Gerald Viernekes, Alexander Markow
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Patent number: 8604654Abstract: A drive unit for a motor vehicle having an electric machine including a rotor mounted so as to be rotatable around an axis A and coupleable, with a driveshaft acting on the vehicle wheels, and a stator having an electric winding whose terminations are connected to a power source by a connection device arranged at a housing opening of the drive unit and guided through this opening. A housing element encloses the rotor and the stator on the radially outer side. To arrange the connection device such that the installation space is optimized, the winding terminations are connected to first contact elements arranged fixed in position at the stator constructed as axial connectors with respect to the electric machine, and constitute stator contacts. These first contact elements are connected to second contact elements constructed to correspond to the first contact elements arranged at a wall area of the drive unit, and constitute wall contacts.Type: GrantFiled: March 16, 2011Date of Patent: December 10, 2013Assignee: ZF Friedrichshafen AGInventors: Alexander Markow, Manfred Zimmer
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Patent number: 8556010Abstract: A drive unit includes an internal combustion engine with a driven shaft, a transmission with an input shaft, and an electric machine arranged between the internal combustion engine and the transmission and comprising a stator and a rotor which can be coupled at least indirectly to the driven shaft of the internal combustion engine and to the transmission input shaft in order to transmit torque. The drive unit includes a clutch arranged in the torque transmission path between the internal combustion engine and the transmission. To facilitate the decoupling of rotational irregularities occurring in the drivetrain of the hybrid vehicle the drive unit has a first torsional damper and a second torsional damper, and at least the rotor of the electric machine is arranged within a torque transmission path formed between the torsional dampers.Type: GrantFiled: October 15, 2010Date of Patent: October 15, 2013Assignee: ZF Friedrichshafen AGInventors: Angelika Ebert, Wolfgang Grosspietsch, Robert Reiser, Heinz Bertels, Andreas Ratte, Alexander Markow
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Publication number: 20110227434Abstract: A drive unit for a motor vehicle having an electric machine including a rotor mounted so as to be rotatable around an axis A and coupleable, with a driveshaft acting on the vehicle wheels, and a stator having an electric winding whose terminations are connected to a power source by a connection device arranged at a housing opening of the drive unit and guided through this opening. A housing element encloses the rotor and the stator on the radially outer side. To arrange the connection device such that the installation space is optimized, the winding terminations are connected to first contact elements arranged fixed in position at the stator constructed as axial connectors with respect to the electric machine, and constitute stator contacts. These first contact elements are connected to second contact elements constructed to correspond to the first contact elements arranged at a wall area of the drive unit, and constitute wall contacts.Type: ApplicationFiled: March 16, 2011Publication date: September 22, 2011Applicant: ZF Friedrichshafen AGInventors: Alexander MARKOW, Manfred Zimmer
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Publication number: 20110226576Abstract: 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: ApplicationFiled: October 9, 2009Publication date: September 22, 2011Applicant: ZF Friedrichshafen AGInventors: Reinhard Feldhaus, Christian Wickel, Norbert Ament, Alexander Markow, Michael Peterseim, Erwin Wack, Thomas Krüger
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Publication number: 20110088958Abstract: A drive unit includes an internal combustion engine with a driven shaft, a transmission with an input shaft, and an electric machine arranged between the internal combustion engine and the transmission and comprising a stator and a rotor which can be coupled at least indirectly to the driven shaft of the internal combustion engine and to the transmission input shaft in order to transmit torque. The drive unit includes a clutch arranged in the torque transmission path between the internal combustion engine and the transmission. To facilitate the decoupling of rotational irregularities occurring in the drivetrain of the hybrid vehicle the drive unit has a first torsional damper and a second torsional damper, and at least the rotor of the electric machine is arranged within a torque transmission path formed between the torsional dampers.Type: ApplicationFiled: October 15, 2010Publication date: April 21, 2011Applicant: ZF Friedrichshafen AGInventors: Angelika EBERT, Wolfgang GROSSPIETSCH, Robert REISER, Heinz BERTELS, Andreas RATTE, Alexander MARKOW
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Patent number: 7905787Abstract: A drive system for a motor vehicle comprises a drive unit with a drive shaft and a torque-transmitting assembly, which is to be connected on the drive side to the drive shaft for rotation in common around an axis of rotation (A) and which is to be connected on the takeoff side to a gearbox. The drive-side connection is accomplished by means of an axial plug-in connection arrangement, and the torque-transmitting assembly is supported in at least one axial direction on the gearbox.Type: GrantFiled: January 23, 2008Date of Patent: March 15, 2011Assignee: ZF Friedrichshafen AGInventors: Peter Frey, Michael Kühner, Alexander Markow, Michael Heuler, Martin Grumbach, Bernhard Sich, Robert Reiser, Peter Hammer
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Patent number: 7484607Abstract: A torsional vibration damper in a gearbox housing has an input part connected to a drive and acts on a first damping unit and an intermediate part which acts as the output of the first damping unit and as the input of a second damping unit. The torsional vibration damper further has an output part which is in working connection with the second damping unit and which is designed to accept a takeoff. Takeoff-side drive elements of the intermediate part, the second damping unit, and the takeoff are mounted in a torque-transmitting space of a clutch device, which space is provided with at least one inlet and at least one outlet. A sealing wall separates the torque-transmitting space from a damping space including the first damping unit.Type: GrantFiled: March 1, 2006Date of Patent: February 3, 2009Assignee: ZF Friedrichshafen AGInventors: Hans-Jürgen Schneider, Thomas Walter, Alexander Markow, Thomas Dögel, Wolfgang Grosspietsch, Rainer Brand, Hilmar Göbel, Reinhard Feldhaus, Jürgen Weth, Stefan Zopf
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Publication number: 20080261706Abstract: A torsional vibration damper includes a primary side having a pair of axially spaced cover disk elements which are fixed to each other, and a central disk element axially between the cover disk elements, wherein each disk element has a like plurality of circumferentially arranged openings, and each opening has a pair of circumferential support areas. A like plurality of damping element units are arranged in respective sets of openings, and are supported against the circumferential support areas. A radial support surface supports each damping element unit in a radially outward direction, each radial support surface extending without curvature in the axial direction.Type: ApplicationFiled: April 18, 2008Publication date: October 23, 2008Applicant: ZF Friedrichshafen AGInventors: Norbert Ament, Reinhard Feldhaus, Erwin Wack, Michael Peterseim, Alexander Markow