Patents by Inventor Thomas Ratzmann
Thomas Ratzmann 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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Patent number: 11548367Abstract: A hybrid drive unit (HY, G) for a motor vehicle includes a housing (GG), in which a torque converter (TC) and an electric machine (EM) are accommodated. The electric machine (EM) and the torque converter (TC) are arranged directly next to each other such that the electric machine (EM) is arranged at a first face end (TC1) of the torque converter housing (TCG). An oil guide shell (LS) at least partially encompasses a section of the torque converter (TC). The oil guide shell (LS) has an L-shaped cross-section including a first section (LS1) and a second section (LS2) and is arranged in such that the first section (LS1) partially encompasses a second face end (TC2) of the torque converter housing (TCG) and the second section (LS2) partially encompasses a circumferential surface of the torque converter housing (TCG).Type: GrantFiled: August 21, 2020Date of Patent: January 10, 2023Assignee: ZF FRIEDRICHSHAFEN AGInventors: Tamas Gyarmati, Leschek Debernitz, Thorsten Müller, Stephan Stroph, Alexander Gutsche, Peter Reinders, Thomas Ratzmann
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Publication number: 20210053433Abstract: A hybrid drive unit (HY, G) for a motor vehicle includes a housing (GG), in which a torque converter (TC) and an electric machine (EM) are accommodated. The electric machine (EM) and the torque converter (TC) are arranged directly next to each other such that the electric machine (EM) is arranged at a first face end (TC1) of the torque converter housing (TCG). An oil guide shell (LS) at least partially encompasses a section of the torque converter (TC). The oil guide shell (LS) has an L-shaped cross-section including a first section (LS1) and a second section (LS2) and is arranged in such that the first section (LS1) partially encompasses a second face end (TC2) of the torque converter housing (TCG) and the second section (LS2) partially encompasses a circumferential surface of the torque converter housing (TCG).Type: ApplicationFiled: August 21, 2020Publication date: February 25, 2021Inventors: Tamas Gyarmati, Leschek Debernitz, Thorsten Müller, Stephan Stroph, Alexander Gutsche, Peter Reinders, Thomas Ratzmann
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Patent number: 8424633Abstract: A continuously variable transmission device (1) for a vehicle with a variator (3), a planetary gear unit (4) and a manual gear unit (9) arranged in a transmission housing. The variator (3) is connected with the planetary gear unit (4) and with the manual gear unit (9) in the area of a first shaft (14) and in the area of a second shaft (15). The variator (3) and the planetary gear unit (4) form a module (2) and are arranged on a common carrier plate (19).Type: GrantFiled: August 15, 2008Date of Patent: April 23, 2013Assignee: ZF Friedrichshafen AGInventors: Gerhard Bailly, Thomas Ratzmann, Jurgen Pohlenz
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Patent number: 8414439Abstract: A transmission device (1) for a vehicle having a variator (3) that has an axially longer length that the variator (3) is wider and deeper. The variator (3) comprises a planetary gear set (4), a manual gearbox unit (9) and a hydraulic system having an oil sump. Following installation in the vehicle, a longitudinal extension of the variator (3) is oriented at least approximately horizontally.Type: GrantFiled: August 15, 2008Date of Patent: April 9, 2013Assignee: ZF Friedrichshafen AGInventors: Gerhard Bailly, Thomas Ratzmann, Karl Grad, Juergen Pohlenz
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Patent number: 8393988Abstract: A transmission device for a vehicle (1) having a variator (3), which is configured as a hydrostatic device, of a transverse axial construction that can be adjusted at least in the region of a pivot axis (11), a planetary gear set (4) and a manual gear unit (9). The orientation of the pivot axis (11) of the variator (3), following installation in the vehicle, at least approximately corresponds to the orientation of a vehicle vertical axis (16).Type: GrantFiled: August 15, 2008Date of Patent: March 12, 2013Assignee: ZF Friedrichshafen AGInventors: Gerhard Bailly, Thomas Ratzmann, Karl Grad, Jurgen Pohlenz
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Patent number: 8307936Abstract: A transmission device (1) for a vehicle with a variator (3), a planetary gear unit (4) and a gearshift transmission unit (9). The variator (3) has a length which is greater than a width and a depth of the variator (3). When the variator (3) is installed in position in the vehicle, the length of the variator (3) is orientated at least approximately diagonally to the length of the vehicle.Type: GrantFiled: August 15, 2008Date of Patent: November 13, 2012Assignee: ZF Friedrichshafen AGInventors: Gerhard Bailly, Thomas Ratzmann, Karl Grad, Jurgen Pohlenz
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Patent number: 8287414Abstract: A continuously variable transmission device comprising a variator and a secondary power splitting. For power splitting, a planetary gear set has a first shaft coupled to the transmission input, a second shaft of the gear set coupled a first shaft of the variator, and a third shaft of the gear set couples a second shaft of the variator. First and second shift elements are provided to switch between first and second gear ratio ranges. Via the variator, the gear ratio is continuously variable within the gear ratio range and the two gear ratio ranges overlap. To implement the first gear ratio range, the second shaft of the gear set is connected, via the first shift element, to the transmission output, and to implement the second gear ratio range, the third shaft of the planetary gear set is connected, via the second shift element, to the transmission output.Type: GrantFiled: August 15, 2008Date of Patent: October 16, 2012Assignee: ZF Friedrichshafen AGInventors: Tobias Weber, Gerhard Bailly, Thomas Ratzmann, Walter Fischer, Jurgen Pohlenz
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Patent number: 8262530Abstract: A power-branched transmission for an agricultural vehicle is configured as a power-branched transmission having a secondary coupling. The transmission comprises a summation planetary gear set (5), the planetary gear of which are configured as a double planetary gear (8).Type: GrantFiled: August 15, 2008Date of Patent: September 11, 2012Assignee: ZF Friedrichshafen AGInventors: Gerhard Bailly, Thomas Ratzmann, Walter Fischer, Jurgen Pohlenz
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Publication number: 20110100732Abstract: A transmission device (1) for a vehicle with a variator (3), a planetary gear unit (4) and a gearshift transmission unit (9). The variator (3) has a length which is greater than a width and a depth of the variator (3). When the variator (3) is installed in position in the vehicle, the length of the variator (3) is orientated at least approximately diagonally to the length of the vehicle.Type: ApplicationFiled: August 15, 2008Publication date: May 5, 2011Applicant: ZF FRIEDRICHSHAFEN AGInventors: Gerhard Bailly, Thomas Ratzmann, Karl Grad, Jurgen Pohlenz
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Publication number: 20100203998Abstract: A continuously variable transmission device (1) for a vehicle with a variator (3), a planetary gear unit (4) and a manual gear unit (9) arranged in a transmission housing. The variator (3) is connected with the planetary gear unit (4) and with the manual gear unit (9) in the area of a first shaft (14) and in the area of a second shaft (15). The variator (3) and the planetary gear unit (4) form a module (2) and are arranged on a common carrier plate (19).Type: ApplicationFiled: August 15, 2008Publication date: August 12, 2010Applicant: ZF FRIEDRICHSHAFEN AGInventors: Gerhard Bailly, Thomas Ratzmann, Jurgen Pohlenz
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Publication number: 20100204000Abstract: A power-branched transmission for an agricultural vehicle is configured as a power-branched transmission having a secondary coupling. The transmission comprises a summation planetary gear set (5), the planetary gear of which are configured as a double planetary gear (8).Type: ApplicationFiled: August 15, 2008Publication date: August 12, 2010Applicant: ZF FRIEDRICHSHAFEN AGInventors: Gerhard Bailly, Thomas Ratzmann, Walter Fischer, Jurgen Pohlenz
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Publication number: 20100197437Abstract: A transmission device for a vehicle (1) having a variator (3), which is configured as a hydrostatic device, of a transverse axial construction that can be adjusted at least in the region of a pivot axis (11), a planetary gear set (4) and a manual gear unit (9). The orientation of the pivot axis (11) of the variator (3), following installation in the vehicle, at least approximately corresponds to the orientation of a vehicle vertical axis (16).Type: ApplicationFiled: August 15, 2008Publication date: August 5, 2010Applicant: ZF Friedrichshafen AGInventors: Gerhard Bailly, Thomas Ratzmann, Karl Grad, Jurgen Pohlenz
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Publication number: 20100197440Abstract: A transmission device (1) for a vehicle having a variator (3) that has an axially longer length that the variator (3) is wider and deeper. The variator (3) comprises a planetary gear set (4), a manual gearbox unit (9) and a hydraulic system having an oil sump. Following installation in the vehicle, a longitudinal extension of the variator (3) is oriented at least approximately horizontally.Type: ApplicationFiled: August 15, 2008Publication date: August 5, 2010Applicant: ZF Friedrichshafen AGInventors: Gerhard Bailly, Thomas Ratzmann, Karl Grad, Juergen Pohlenz
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Publication number: 20100197439Abstract: A continuously variable transmission device comprising a variator and a secondary power splitting. For power splitting, a planetary gear set has a first shaft coupled to the transmission input, a second shaft of the gear set coupled a first shaft of the variator, and a third shaft of the gear set couples a second shaft of the variator. First and second shift elements are provided to switch between first and second gear ratio ranges. Via the variator, the gear ratio is continuously variable within the gear ratio range and the two gear ratio ranges overlap. To implement the first gear ratio range, the second shaft of the gear set is connected, via the first shift element, to the transmission output, and to implement the second gear ratio range, the third shaft of the planetary gear set is connected, via the second shift element, to the transmission output.Type: ApplicationFiled: August 15, 2008Publication date: August 5, 2010Applicant: ZF FRIEDRICHSHAFEN AGInventors: Tobias Weber, Gerhard Bailly, Thomas Ratzmann, Walter Fischer, Jurgen Pohlenz