Patents by Inventor Kai Vohwinkel
Kai Vohwinkel 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: 9669865Abstract: A steering gear mechanism for motor vehicles may include a steering system housing in which a toothed rack is mounted and displaceable along a longitudinal axis. The toothed rack may be connected to steerable wheels of a motor vehicle and configured to pivot the steerable wheels. The toothed rack can include a first toothed segment that meshes with a first pinion of a pinion shaft, with the pinion shaft being connectable to a steering wheel via an input shaft. The toothed rack may further include a second toothed segment that is situated opposite the first toothed segment with respect to the longitudinal axis and engages with a second pinion. Further, an electric motor can drive the first pinion in a first direction, which by way of direct or indirect coupling causes the second pinion to rotate in a second direction opposite the first direction. The electric motor may drive a gear mechanism shaft that surrounds the pinion shaft and is connected to the pinion shaft by way of a gear mechanism.Type: GrantFiled: June 18, 2014Date of Patent: June 6, 2017Assignee: THYSSENKRUPP PRESTA AGInventors: Anatoli Schröder, Kai Vohwinkel
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Patent number: 9429221Abstract: Steering pinions and methods for producing the same are described. The steering pinion has a toothed section for meshing with a gear rack and a connection section for connecting to a steering shaft. The toothed section includes a toothed part and the connection section includes a connection part. The toothed part and the connection part are pressed together in a rotationally fixed manner.Type: GrantFiled: July 13, 2012Date of Patent: August 30, 2016Assignee: THYSSENKRUPP PRESTA AKTIENGESELLSCHAFTInventors: Frank Birkwald, Christian Ziegler, Hubert Heck, Paul Schwarzhans, Roger Kollmeier, Aksel Maier, Kai Vohwinkel
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Publication number: 20160207565Abstract: A steering gear mechanism for motor vehicles may include a steering system housing in which a toothed rack is mounted and displaceable along a longitudinal axis. The toothed rack may be connected to steerable wheels of a motor vehicle and configured to pivot the steerable wheels. The toothed rack can include a first toothed segment that meshes with a first pinion of a pinion shaft, with the pinion shaft being connected to a steering wheel via a steering shaft. The toothed rack may further include a second toothed segment that is situated opposite the first toothed segment with respect to the longitudinal axis and engages with a second pinion. Further, an electric motor can drive the first pinion in a first direction, which by way of direct or indirect coupling causes the second pinion to rotate in a second direction opposite the first direction. The electric motor may in some cases be in the form of a hollow-shaft motor that at least partially surrounds the input shaft and/or the pinion shaft.Type: ApplicationFiled: June 13, 2014Publication date: July 21, 2016Applicant: THYSSENKRUPP PRESTA AGInventors: Aksel Maier, Anatoli Schroder, Christine Goldberg, Kai Vohwinkel
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Publication number: 20160144888Abstract: A rack and pinion drive may comprise a housing without a thrust piece connector, as well as a toothed rack that has a toothing arrangement and is slidably mounted in the housing. A pinion may be rotatably mounted in a bearing in the housing, wherein the pinion is positioned along a longitudinal axis. The pinion may have a toothing arrangement that engages with the toothing arrangement of the toothed rack. A bearing arrangement for mounting the bearing in the housing may include a guide piece that abuts the housing and has an internal guide face. Likewise, the bearing arrangement may include a sliding piece that surrounds the bearing and has an external guide face. The external guide face of the sliding piece is guided at least by the internal guide face of the guide piece such that the sliding piece is slidable at least in a direction of the longitudinal axis. As a result, the pinion is adjustable in a direction of the toothed rack.Type: ApplicationFiled: June 18, 2014Publication date: May 26, 2016Applicant: THYSSENKRUPP PRESTA AGInventors: Aksel MAIER, Kai VOHWINKEL, Christine GOLDBERG, Anatoli SCHRÖDER
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Publication number: 20160137219Abstract: A steering gear mechanism for motor vehicles may include a steering system housing in which a toothed rack is mounted and displaceable along a longitudinal axis. The toothed rack may be connected to steerable wheels of a motor vehicle and configured to pivot the steerable wheels. The toothed rack can include a first toothed segment that meshes with a first pinion of a pinion shaft, with the pinion shaft being connectable to a steering wheel via an input shaft. The toothed rack may further include a second toothed segment that is situated opposite the first toothed segment with respect to the longitudinal axis and engages with a second pinion. Further, an electric motor can drive the first pinion in a first direction, which by way of direct or indirect coupling causes the second pinion to rotate in a second direction opposite the first direction. The electric motor may drive a gear mechanism shaft that surrounds the pinion shaft and is connected to the pinion shaft by way of a gear mechanism.Type: ApplicationFiled: June 18, 2014Publication date: May 19, 2016Applicant: THYSSENKRUPP PRESTA AGInventors: Anatoli SCHRÖDER, Kai VOHWINKEL
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Publication number: 20140137682Abstract: Steering pinions and methods for producing the same are described. The steering pinion has a toothed section for meshing with a gear rack and a connection section for connecting to a steering shaft. The toothed section includes a toothed part and the connection section includes a connection part. The toothed part and the connection part are pressed together in a rotationally fixed manner.Type: ApplicationFiled: July 13, 2012Publication date: May 22, 2014Applicant: THYSSENKRUPP PRESTA AKTIENGESELLSCHAFTInventors: Frank Birkwald, Christian Ziegler, Hubert Heck, Paul Schwarzhans, Roger Kollmeier, Aksel Maier, Kai Vohwinkel
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Patent number: 8690173Abstract: The invention relates to a motor vehicle steering system, comprising a steering housing (7) in which a steering rack (6) is mounted in a longitudinally displaceable manner and is connected to tie rods (8) to swivel steerable wheels (9), the steering rack (6) being provided with a first toothed segment (5) which meshes with a first steering pinion (4) and the steering pinion (4) being connected to a steering wheel (1) for conjoint rotation by a steering shaft (2, 3), the steering rack (6) having a second toothed segment (13) which is opposite the first toothed segment (4) relative to the longitudinal axis of the steering rack (6), and that a second steering pinion (12) is provided which meshes with the second toothed segment (13).Type: GrantFiled: July 4, 2011Date of Patent: April 8, 2014Assignee: ThyssenKrupp Presta AGInventors: Roman Bilmayer, Ralf Eckstein, Rinaldo Buchel, Steffen Reisacher, Bernd Haussler, Kai Vohwinkel
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Publication number: 20130247697Abstract: The invention relates to a rack and pinion steering system for a motor vehicle, comprising a steering box (2) in which a rack is displaceably mounted, and a thrust piece bore (1) accommodating a thrust piece which is forced against the rack by means of a set screw (11) screwed into a thread zone (6, 7). The invention is characterised in that a groove (8) is cut in the thread zone (6, 7) of the thrust piece bore radially outwards and a sealing ring (16) is inserted in said groove (8).Type: ApplicationFiled: December 7, 2011Publication date: September 26, 2013Applicant: ThyssenKrupp Presta AGInventors: Joachim Bahr, Edwin Breuning, Paul Heinzen, Kai Vohwinkel
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Publication number: 20130113173Abstract: The invention relates to a motor vehicle steering system, comprising a steering housing (7) in which a steering rack (6) is mounted in a longitudinally displaceable manner and is connected to tie rods (8) to swivel steerable wheels (9), the steering rack (6) being provided with a first toothed segment (5) which meshes with a first steering pinion (4) and the steering pinion (4) being connected to a steering wheel (1) for conjoint rotation by a steering shaft (2, 3), the steering rack (6) having a second toothed segment (13) which is opposite the first toothed segment (4) relative to the longitudinal axis of the steering rack (6), and that a second steering pinion (12) is provided which meshes with the second toothed segment (13).Type: ApplicationFiled: July 4, 2011Publication date: May 9, 2013Applicant: ThyssenKrupp Presta AGInventors: Roman Bilmayer, Ralf Eckstein, Rinaldo Buchel, Steffen Reisacher, Bernd Haussler, Kai Vohwinkel