Patents by Inventor Herbert Frielingsdorf
Herbert Frielingsdorf 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: 7172510Abstract: A hub member and shaft joint assembly includes an inner joint part of a constant velocity joint and a shaft journal. The hub member has a central through-aperture with inner toothing for receiving the shaft journal, and outer ball tracks. The inner toothing is formed in a predetermined limited length as far as a toothing run-out and is followed by a bore with a reduced diameter. The shaft journal has shaft toothing and, at a distance from the shaft end, a first conical step serving as a top face relative to the toothing run-out and directly contacting same. A larger second conical step is positioned axially spaced from the first step and forms a toothing end of the shaft toothing.Type: GrantFiled: April 7, 2005Date of Patent: February 6, 2007Assignee: GKN Automotive GmbHInventors: Peter Fuhrmann, Herbert Frielingsdorf, Volker Hainz, Jean Spolmayeur
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Publication number: 20050176514Abstract: A production method involving forming an inner joint part of a constant velocity universal ball joint in the form of a hub member (11) which comprises a central through-aperture (14) with inner toothing (16) for receiving a shaft journal (12), and ball tracks (15) for receiving torque transmitting balls on the outer circumference, wherein a blank with largely finish-formed ball tracks is produced by non-chip-forming deformation; wherein, at the blank, outer surfaces and a smooth through-aperture (14) are finish-turned; and wherein, during simultaneous working stages, the ball tracks (15) are calibrated by non-chip-forming deformation and the inner toothing (16) in the through-aperture (14) is produced by pressing in a non-chip-forming way.Type: ApplicationFiled: April 7, 2005Publication date: August 11, 2005Inventors: Peter Fuhrmann, Herbert Frielingsdorf, Volker Hainz, Jean Spolmayeur
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Patent number: 6877350Abstract: A production method involving forming an inner joint part of a constant velocity universal ball joint in the form of a hub member (11) which comprises a central through-aperture (14) with inner toothing (16) for receiving a shaft journal (12), and ball tracks (15) for receiving torque transmitting balls on the outer circumference, wherein a blank with largely finish-formed ball tracks is produced by non-chip-forming deformation; wherein, at the blank, outer surfaces and a smooth through-aperture (14) are finish-turned; and wherein, during simultaneous working stages, the ball tracks (15) are calibrated by non-chip-forming deformation and the inner toothing (16) in the through-aperture (14) is produced by pressing in a non-chip-forming way.Type: GrantFiled: November 26, 2002Date of Patent: April 12, 2005Assignee: GKN Automotive GmbHInventors: Peter Fuhrmann, Herbert Frielingsdorf, Volker Hainz, Jean Spolmayeur
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Publication number: 20030130048Abstract: A production method involving forming an inner joint part of a constant velocity universal ball joint in the form of a hub member (11) which comprises a central through-aperture (14) with inner toothing (16) for receiving a shaft journal (12), and ball tracks (15) for receiving torque transmitting balls on the outer circumference, wherein a blank with largely finish-formed ball tracks is produced by non-chip-forming deformation; wherein, at the blank, outer surfaces and a smooth through-aperture (14) are finish-turned; and wherein, during simultaneous working stages, the ball tracks (15) are calibrated by non-chip-forming deformation and the inner toothing (16) in the through-aperture (14) is produced by pressing in a non-chip-forming way.Type: ApplicationFiled: November 26, 2002Publication date: July 10, 2003Inventors: Peter Fuhrmann, Herbert Frielingsdorf, Volker Hainz, Jean Spolmayeur
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Patent number: 6193419Abstract: A wheel hub/constant velocity joint unit having a double-row bearing assembly 18 arranged on the wheel hub 11 and comprising at least one separate inner bearing ring 42 pointing towards the constant velocity joint. The outer joint part 25 of the constant velocity joint comprises a central inner aperture 26 which points towards the wheel hub 11 and includes inner teeth 30. An annular member 36 with outer teeth 37 is non-rotatingly inserted into the inner aperture 26. Removable axial connecting means are provided between the outer joint part 25 and the annular member 36. The annular member 36 is non-removably connected to the wheel hub 11.Type: GrantFiled: December 28, 1998Date of Patent: February 27, 2001Assignee: GKN Automotive AGInventors: Werner Krude, Herbert Frielingsdorf
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Patent number: 5974665Abstract: An assembly for driving and supporting a wheel has a wheel hub 20 and an outer joint member 31. The wheel hub 20 includes a flange 21 which connects the wheel 5 and the wheel hub 20 together. A constant velocity joint is rotatably supported on a wheel carrier 8 by a supporting means. The constant velocity joint is fixed for torque transmitting purposes and is rotatably supported about an axis by a rolling contact bearing 14 having two rows of rolling contact members 17, 18. Two inter-engaging sets of teeth 29, 29' secure the constant velocity joint to the wheel hub 20. The first set of teeth 29 moves axially in relation to the outer joint member 31 causing the second set of teeth 29' to be formed in a bore 33 within the outer joint member 31 during assembly.Type: GrantFiled: January 23, 1997Date of Patent: November 2, 1999Assignee: GKN Automotive AGInventors: Herbert Frielingsdorf, Werner Krude
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Patent number: 5853250Abstract: A wheel hub/constant velocity joint unit having a double-row bearing assembly 18 arranged on the wheel hub 11 and comprising at least one separate inner bearing ring 42 pointing towards the constant velocity joint. The outer joint part 25 of the constant velocity joint comprises a central inner aperture 26 which points towards the wheel hub 11 and includes inner teeth 30. An annular member 36 with outer teeth 37 is non-rotatingly inserted into the inner aperture 26. Removable axial connections are provided between the outer joint part 25 and the annular member 36. The annular member 36 is non-removably connected to the wheel hub 11.Type: GrantFiled: January 22, 1997Date of Patent: December 29, 1998Assignee: GKN Automotive AGInventors: Werner Krude, Herbert Frielingsdorf
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Patent number: 5577420Abstract: A cam shaft for valve operation in an internal combustion engine comprises two shaft elements of which the first (101, 201) is disposed inside the second (102, 202) and can be moved relative thereto angularly and/or axially. First cam elements (107, 207) provided on the first shaft element have at least lobe portions which extend radially outwardly through slots in the second shaft element to provide a cam surface, while second cam elements are provided on the second shaft element. The first and/or the second shaft element may comprise a number of individual tubular sections joined to one another.Type: GrantFiled: December 28, 1993Date of Patent: November 26, 1996Inventors: Helmut Riemscheid, Karl Weiss, Herbert Frielingsdorf, Peter Amborn, Stefan Magirius, Klaus Greulich, Gretel Schmidt, Peter Urban
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Patent number: 5388814Abstract: A device for the simultaneous hydraulic expansion of a plurality of longitudinal portions of a hollow shaft for the production of force-locking and/or positive-locking connections between the latter and elements slid thereon, (such as cams, toothed wheels or bearing seats), in the form of a pressure medium probe. This comprises at least one longitudinally extending feed channel and radial feed bore holes to every longitudinal portion of the hollow shaft to be expanded, which is characterized by a sealing arrangement which seals longitudinal portions of the hollow shaft remaining undeformed against the action of the pressure medium from longitudinal portions of the hollow shaft to be expanded.Type: GrantFiled: June 22, 1993Date of Patent: February 14, 1995Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventors: Helmut Riemscheid, Herbert Frielingsdorf, Heribert Grewe, Karl Weiss, Rudolf Schulze, Engelbert Schwarz, Helmut Swars, Arnold Palussek
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Patent number: 5333939Abstract: A wheel hub/constant velocity joint unit has a two-row wheel bearing with a common outer bearing race (16). A joint member (4) with an end sleeve (5) is slid on to the wheel hub (1) and connected thereto while the wheel bearing is in a pretensioned condition. The connection of the hub (1) and joint member (4) is effected by a weld (23, 24, 29) located in the region of a plug-in connection between the externally positioned end sleeve (5) of the joint member (4) and the internally positioned wheel hub (1).Type: GrantFiled: May 12, 1993Date of Patent: August 2, 1994Assignee: GKN Automotive AGInventors: Werner Krude, Peter Harz, Herbert Frielingsdorf
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Patent number: 5243880Abstract: A driveshaft for a motor vehicle has an approximately constant wall thickness and a changing outer diameter which extends analogously to the amplitude of the second basic vibration of the natural bending frequency. In this way it is possible to achieve a distribution of cross-sectional area which is functionally optimized and meets the respective strength requirements. At the same time, torsional stiffness values may be set as required and natural resonance frequency values may be varied. With help of this design it is possible to move the natural resonance frequency of the tubular shaft into a speed range of minimum external excitation energy.Type: GrantFiled: March 27, 1991Date of Patent: September 14, 1993Assignees: GKN Automotive AG, Lohr & Bromkamp GmbH, Ford-Werke AGInventors: Rudolf Beier, Peter Amborn, Wolfgang Exner, Herbert Frielingsdorf, Klaus Greulich, Joachim Altdorf, Ivan Rericha
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Patent number: 5165303Abstract: A cam shaft for valve operation in an internal combustion engine comprises two shaft elements of which the first (101, 201) is disposed inside the second (102, 202) and can be moved relative thereto angularly and/or axially. First cam elements (107, 207) provided on the first shaft element have at least lobe portions which extend radially outwardly through slots in the second shaft element to provide a cam surface, while second cam elements are provided on the second shaft element. The first and/or the second shaft element may comprise a number of individual tubular sections joined to one another.Type: GrantFiled: July 3, 1990Date of Patent: November 24, 1992Assignee: GKN Automotive AGInventors: Helmut Riemscheid, Karl Weiss, Herbert Frielingsdorf, Peter Amborn, Stefan Magirius, Klaus Greulich, Gretel Schmidt, Peter Urban
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Patent number: 5101554Abstract: In the production of an assembled camshaft slid-on elements, such as control cams, bearing rings, gear wheels or bevel gears, are placed on an axially extending shaft tube. The slid-on elements are secured in place by expanding the shaft tube in the region of the elements by applying internal pressure. In producing the camshaft, a high strength material is used for the slid-on elements and an inferior strength material for the shaft. In the expanding step, an axially extending portion of the shaft tube is plastically deformed and the slid-on element is predominately elastically deformed. After expansion, the outer zone of the slid-on elements are elongated in the tangential direction in the range of 1%.Type: GrantFiled: January 14, 1991Date of Patent: April 7, 1992Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventors: Hans-Jurgen Breuer, Wolfgang Maus, Rudolf Schulze, Helmut Swars, Hans Hanswillemenke, Helmut Riemscheid, Karl Weiss, Herbert Frielingsdorf, Engelbert Schwarz, Heribert Grewe, Klaus Greulich
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Patent number: 5054182Abstract: The invention relates to an assembly device for assembling camshafts, comprising a holding device for axially fixing individual elements such as cam discs, bearing seats or gears, including a pressure agent probe for hydraulically expanding a hollow shaft in sections, with the elements and the shaft being connected to each other in a force-locking way.The holding device has been provided with individual fixing discs each having a central aperture for receiving one of the elements such as cam discs, bearing seats or gears as well as an outer bearing seat for being received in a bearing region of the holding device. These fixing discs permit angularly accurate fixing of the individual elements prior to assembly, with the hollow shaft being able to carry out radial movements relative to these.Type: GrantFiled: June 26, 1990Date of Patent: October 8, 1991Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventors: Helmut Riemscheid, Karl Weiss, Herbert Frielingsdorf, Engelbert Schwarz, Heribert Grewe
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Patent number: 5055096Abstract: A differential gearing comprises a carrier (1); output gears (3, 11); and differential gears (4, 5) in two sets meshing respectively with the output gears and directly or indirectly with one another. The differential gears are disposed asymmetrically about the carrier so that a resultant radial force acts on the output gears urging them into engagement with recesses in the carrier (1) or a support member (7) therein, so that the frictional inhibition of the differential action is increased.Type: GrantFiled: June 25, 1990Date of Patent: October 8, 1991Assignee: GKN Automotive AGInventors: Helmut Riemscheid, Herbert Frielingsdorf, Klaus Greulich, Peter Amborn
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Patent number: 5054756Abstract: Devices are described which are suitable for simultaneous hydraulic expansion of several longitudinal sections of a hollow shaft for the production of connections by interlocking or frictional engagement between said sections and elements fitted thereto such as cams, toothed wheels and bearing seats. The devices include pressure probes with a longitudinal hydraulic fluid channel and a radial inlet bore to each longitudinal section of the hollow shaft to be expanded and, if necessary, with a longitudinal discharge channel and a radial discharge bore to the undeformed longitudinal sections of the hollow shaft between the sections to be expanded. Sealing means are provided which seal the undeformed longitudinal sections of the hollow shaft against penetration of the hydraulic fluid from the intermediate longitudinal sections of the hollow shaft to be expanded.Type: GrantFiled: January 8, 1991Date of Patent: October 8, 1991Assignee: Emitec Gesellschaft fur Emissionstechnologie mbHInventors: Helmut Riemscheid, Herbert Frielingsdorf, Heribert Grewe, Karl Weiss, Rudolf Schulze, Engelbert Schwarz, Helmut Swars, Arnold Palussek