Patents by Inventor Wolfgang Hildebrandt

Wolfgang Hildebrandt 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).

  • Patent number: 11815138
    Abstract: A constant velocity joint comprises an outer joint part with outer ball tracks and an inner joint part with inner ball tracks. An outer ball track and an inner ball track respectively form a pair of tracks with one another; in each, a torque-transmitting ball is guided. The torque-transmitting balls are accommodated in a ball cage with circumferentially distributed cage windows. In any angular position of the constant velocity joint an opening angle is formed between an outer tangent to the outer ball track and an inner tangent to the inner ball track. At an articulation angle of zero degrees the opening angle is greater than zero degrees. A central articulation angle range is defined with articulation angles less than fifteen degrees. The opening angle increases by at least two degrees within the central articulation angle range, and is less than twelve degrees for all articulation angles within the central articulation angle range.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: November 14, 2023
    Assignee: GKN Driveline International GmbH
    Inventors: Stephan Maucher, Anna Gremmelmaier, Wolfgang Hildebrandt, Thomas Weckerling
  • Patent number: 11796008
    Abstract: A constant velocity joint comprises an outer joint part with outer ball tracks, an inner joint part with inner ball tracks, wherein respectively an outer ball track and an inner ball track form a pair of tracks with each other; a torque-transmitting ball in each pair of tracks; a ball cage in which the torque-transmitting balls are received; wherein a first articulation angle range is defined comprising articulation angles of less than twenty degrees, and a second articulation angle range comprising articulation angles greater than twenty degrees; wherein an opening angle within the first articulation angle range increases as the articulation angle (?) increases, and wherein a first mean opening angle increase of the first articulation angle range is greater than a second mean opening angle increase of the second articulation angle range.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: October 24, 2023
    Assignee: GKN Driveline International GmbH
    Inventors: Ida Benner, Rolf Cremerius, Anna Gremmelmaier, Wolfgang Hildebrandt, Stephan Maucher, Hans-Jürgen Post, Thomas Weckerling
  • Publication number: 20210270325
    Abstract: A constant velocity joint comprises an outer joint part with outer ball tracks; an inner joint part with inner ball tracks; wherein an outer ball track and an inner ball track respectively form a pair of tracks with one another, in each of which a torque-transmitting ball\ is guided; a ball cage with circumferentially distributed cage windows in which the torque-transmitting balls are accommodated; wherein in any angular position of the constant velocity joint an opening angle is formed between an outer tangent to the outer ball track and an inner tangent to the inner ball track; wherein at an articulation angle of zero degrees the opening angle is greater than zero degrees, wherein a central articulation angle range is defined with articulation angles less than fifteen degrees, wherein the opening angle increases by at least two degrees within the central articulation angle range and is less than twelve degrees for all articulation angles within the central articulation angle range.
    Type: Application
    Filed: July 5, 2018
    Publication date: September 2, 2021
    Inventors: Stephan Maucher, Anna Gremmelmaier, Wolfgang Hildebrandt, Thomas Weckerling
  • Publication number: 20210140488
    Abstract: A constant velocity joint comprises an outer joint part with outer ball tracks, an inner joint part with inner ball tracks, wherein respectively an outer ball track and an inner ball track form a pair of tracks with each other; a torque-transmitting ball in each pair of tracks; a ball cage in which the torque-transmitting balls are received; wherein a first articulation angle range is defined comprising articulation angles of less than twenty degrees, and a second articulation angle range comprising articulation angles greater than twenty degrees; wherein an opening angle within the first articulation angle range increases as the articulation angle (?) increases, and wherein a first mean opening angle increase of the first articulation angle range is greater than a second mean opening angle increase of the second articulation angle range.
    Type: Application
    Filed: July 5, 2018
    Publication date: May 13, 2021
    Inventors: Ida Benner, Rolf Cremerius, Anna Gremmelmaier, Wolfgang Hildebrandt, Stephan Maucher, Hans-Jürgen Post, Thomas Weckerling
  • Patent number: 10688858
    Abstract: A transmission arrangement for a hybrid vehicle has an internal combustion engine and an electric machine. A first drive torque of the internal combustion engine and a second drive torque of the electric machine are transmissible to at least one drive shaft of the hybrid vehicle by the transmission arrangement. The transmission arrangement comprises a first planetary transmission with first components including a first sun gear, first ring gear and first planet carrier. A third drive torque is transmissible to a second planet carrier of a second planetary transmission by the first planet carrier. The second planetary transmission has second components including a second planet carrier, second sun gear and third sun gear. The second sun gear meshes with a first toothing of a second planet gear. The third sun gear meshes with a second toothing of the second planet gear. A drive shaft of the hybrid vehicle is driveable by the third sun gear.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: June 23, 2020
    Assignee: GKN Automotive Ltd.
    Inventors: Theodor Gassmann, Jan Haupt, Moritz Abbenhaus, Sven Herber, Wolfgang Hildebrandt
  • Publication number: 20190225070
    Abstract: A transmission arrangement for a hybrid vehicle has an internal combustion engine and an electric machine. A first drive torque of the internal combustion engine and a second drive torque of the electric machine are transmissible to at least one drive shaft of the hybrid vehicle by the transmission arrangement. The transmission arrangement comprises a first planetary transmission with first components including a first sun gear, first ring gear and first planet carrier. A third drive torque is transmissible to a second planet carrier of a second planetary transmission by the first planet carrier. The second planetary transmission has second components including a second planet carrier, second sun gear and third sun gear. The second sun gear meshes with a first toothing of a second planet gear. The third sun gear meshes with a second toothing of the second planet gear. A drive shaft of the hybrid vehicle is driveable by the third sun gear.
    Type: Application
    Filed: November 4, 2016
    Publication date: July 25, 2019
    Applicant: GKN Automotive Ltd.
    Inventors: Theodor GASSMANN, Jan HAUPT, Moritz ABBENHAUS, Sven HERBER, Wolfgang HILDEBRANDT
  • Patent number: 9810269
    Abstract: A constant velocity joint comprises an outer joint part with a longitudinal axis and first and second outer ball tracks. The outer joint part comprises an attachment side and an aperture side. An inner joint part has a longitudinal axis and first and second inner ball tracks. with a torque transmitting ball 14 in each pair of tracks, and a ball cage 15 with cage windows 18 in which the balls 14 are held. In each angular position of the constant velocity joint 11 an opening angle is enclosed between an outer tangent and an inner tangent at the ball. At least one of the first and second pairs of tracks is designed such that, within a small articulation angle range comprising at least the joint central plane, at at least an articulation angle, an opening angle amounts to zero, and within a greater articulation angle range, an aperture-side opening angle of a first pair of tracks widens in the opposite axial direction relative to the aperture-side opening angle of a second pair of tracks.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: November 7, 2017
    Assignee: GKN Driveline International GmbH
    Inventors: Wolfgang Hildebrandt, Thomas Weckerling, Stephan Maucher, Rolf Cremerius, Ida Benner, Hans-Jurgen Post, Anna Gremmelmaier
  • Patent number: 9494199
    Abstract: A rolling boot comprises a first fastening region for fastening the boot to a joint casing, a second fastening region for fastening the boot to a shaft, and a fold region between the first and the second fastening region with a first fold near to the first fastening region and a second fold near to the second fastening region. The boot further comprises, between the first fastening region and the first fold, a first transition region comprising a first flange neighboring the first fastening region with a bottom. A ratio between a first minimal diameter D1, defined by the bottom of the first flange of the first transition region, and a second maximal diameter D2, defined by the first fold, where both are viewed in a longitudinal section direction along the main axis, is between approximately 1:1.01 to approximately 1:1.25.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: November 15, 2016
    Assignee: GKN Driveline International GmbH
    Inventors: Ralf Schumacher, Winfried Busch, Markus Deisinger, Joachim Wette, Wolfgang Hildebrandt, Thomas Schafferus, Achim Schmeink
  • Publication number: 20160053817
    Abstract: A constant velocity joint comprises an outer joint part with a longitudinal axis and first and second outer ball tracks. The outer joint part comprises an attachment side and an aperture side. An inner joint part has a longitudinal axis and first and second inner ball tracks. with a torque transmitting ball 14 in each pair of tracks, and a ball cage 15 with cage windows 18 in which the balls 14 are held. In each angular position of the constant velocity joint 11 an opening angle is enclosed between an outer tangent and an inner tangent at the ball. At least one of the first and second pairs of tracks is designed such that, within a small articulation angle range comprising at least the joint central plane, at at least an articulation angle, an opening angle amounts to zero, and within a greater articulation angle range, an aperture-side opening angle of a first pair of tracks widens in the opposite axial direction relative to the aperture-side opening angle of a second pair of tracks.
    Type: Application
    Filed: March 27, 2014
    Publication date: February 25, 2016
    Inventors: Wolfgang Hildebrandt, Thomas Weckerling, Stephan Maucher, Rolf Cremerius, Ida Benner, Hans-Jurgen Post, Anna Gremmelmaier
  • Patent number: 9133887
    Abstract: A constant velocity joint comprises an outer joint part with a longitudinal axis and outer ball tracks, wherein the outer joint part comprises an attachment side and an aperture side; an inner joint part with a longitudinal axis and inner ball tracks; a torque transmitting ball in each pair of tracks; a ball cage with cage windows in which the balls are held, wherein in each angular position of the constant velocity joint there is enclosed an opening angle ? between an outer tangent T and an inner tangent T? at the ball, wherein at least one of the pairs of tracks is designed such that, inside a small articulation angle range, which comprises at least the joint central plane EM, in at least one joint articulation angle ?, an opening angle ? amounts to zero, and that inside a larger articulation angle range, an aperture side opening angle ? of a ball moving towards the aperture side of the outer joint part and an attachment side opening angle ? of a ball moving at the same joint articulation angle ? towards th
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: September 15, 2015
    Assignee: GKN Driveline International GmbH
    Inventors: Wolfgang Hildebrandt, Stephan Maucher, Thomas Weckerling, Rolf Cremerius, Ida Benner, Hans-Jurgen Post, Anna Gremmelmaier
  • Publication number: 20150119152
    Abstract: A rolling boot comprises a first fastening region for fastening the boot to a joint casing, a second fastening region for fastening the boot to a shaft, and a fold region between the first and the second fastening region with a first fold near to the first fastening region and a second fold near to the second fastening region. The boot further comprises, between the first fastening region and the first fold, a first transition region comprising a first flange neighbouring the first fastening region with a bottom. A ratio between a first minimal diameter D1, defined by the bottom of the first flange of the first transition region, and a second maximal diameter D2, defined by the first fold, where both are viewed in a longitudinal section direction along the main axis, is between approximately 1:1.01 to approximately 1:1.25.
    Type: Application
    Filed: November 6, 2014
    Publication date: April 30, 2015
    Inventors: Ralf Schumacher, Winfried Busch, Markus Deisinger, Joachim Wette, Wolfgang Hildebrandt, Thomas Schafferus, Achim Schmeink
  • Patent number: 9005040
    Abstract: A joint in the form of a counter track joint is disclosed that comprises a joint outer part with first outer ball tracks and second outer ball tracks; a joint inner part with first inner ball tracks and second inner ball tracks; wherein first aperture angles are respectively formed between tangents to contact points of a ball with the first outer ball track and with the first inner ball track, and second aperture angles are respectively formed between tangents to contact points between a ball with the second outer ball track and with the second inner ball track. The first aperture angles of the first track pairs open towards a first side of the joint, and the second aperture angles of the second track pairs open towards a second side of the joint. Outer axial play is provided between the joint outer part and the ball cage. Inner axial play is provided between the ball cage and the joint inner part. Axial play permits relative axial displacement of the joint inner part with respect to the joint outer part.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: April 14, 2015
    Assignee: GKN Driveline International GmbH
    Inventors: Wolfgang Hildebrandt, Orkan Eryilmaz
  • Publication number: 20150072795
    Abstract: A constant velocity joint comprises an outer joint part with a longitudinal axis and outer ball tracks, wherein the outer joint part comprises an attachment side and an aperture side; an inner joint part with a longitudinal axis and inner ball tracks; a torque transmitting ball in each pair of tracks; a ball cage with cage windows in which the balls are held, wherein in each angular position of the constant velocity joint there is enclosed an opening angle ? between an outer tangent T and an inner tangent T? at the ball, wherein at least one of the pairs of tracks is designed such that, inside a small articulation angle range, which comprises at least the joint central plane EM, in at least one joint articulation angle ?, an opening angle ? amounts to zero, and that inside a larger articulation angle range, an aperture side opening angle ? of a ball moving towards the aperture side of the outer joint part and an attachment side opening angle ? of a ball moving at the same joint articulation angle ? towards th
    Type: Application
    Filed: March 26, 2013
    Publication date: March 12, 2015
    Inventors: Wolfgang Hildebrandt, Stephan Maucher, Thomas Weckerling, Rolf Cremerius, Ida Benner, Hans-Jurgen Post, Anna Gremmelmaier
  • Publication number: 20130316838
    Abstract: A joint in the form of a counter track joint is disclosed that comprises a joint outer part with first outer ball tracks and second outer ball tracks; a joint inner part with first inner ball tracks and second inner ball tracks; wherein first aperture angles are respectively formed between tangents to contact points of a ball with the first outer ball track and with the first inner ball track, and second aperture angles are respectively formed between tangents to contact points between a ball with the second outer ball track and with the second inner ball track. The first aperture angles of the first track pairs open towards a first side of the joint, and the second aperture angles of the second track pairs open towards a second side of the joint., Outer axial play is provided between the joint outer part and the ball cage. Inner axial play is provided between the ball cage and the joint inner part. Axial play permits relative axial displacement of the joint inner part with respect to the joint outer part.
    Type: Application
    Filed: November 26, 2010
    Publication date: November 28, 2013
    Applicant: GKN Driveline International GmbH
    Inventors: Wolfgang Hildebrandt, Orkan Eryilmaz
  • Patent number: 8114224
    Abstract: An articulated structural part includes a peripheral zone. The peripheral zone includes a surface, an outermost layer situated immediately adjacent the surface, a further layer situated adjacent the outermost layer and a core situated adjacent the further layer, wherein the outermost layer is substantially martensite. The further layer includes a varying mixture of martensite and of ferrite or perlite. The core is substantially ferrite or perlite. A process for producing an articulated structural part is also provided.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: February 14, 2012
    Assignee: GKN Driveline International GmbH
    Inventors: Hans-Heinrich Welschof, Wolfgang Hildebrandt, Frank Reher
  • Patent number: 7686695
    Abstract: A constant velocity joint (11) in the form of a counter track joint wherein, when the joint is in the aligned condition, the ratio (V1) of the pitch circle diameter (PCDS) of the shaft toothing in the inner joint part (15) in the power of three relative to the product of the ball diameter (DK) squared and pitch circle diameter (PCDB) of the balls (17) assumes a value ranging between 0.9 and 1.3.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: March 30, 2010
    Assignee: GKN Driveline International GmbH
    Inventors: Stephan Maucher, Wolfgang Hildebrandt, Anna Gremmelmaier, Ida Hassenrik
  • Publication number: 20080166281
    Abstract: Methods for producing cesium hydroxide solutions during which: cesium-containing ore is disintegrated with sulfuric acid while forming a cesium aluminum sulfate hydrate, which is poorly soluble at low temperatures; the formed cesium alum is separated away in the form of a solution from the solid ore residues; the aluminum is precipitated out of the cesium alum solution while forming a cesium sulfate solution; the formed cesium sulfate solution is reacted with barium hydroxide or stontium hydroxide while forming a cesium hydroxide solution, and; the formed cesium hydroxide solution is concentrated and purified.
    Type: Application
    Filed: January 25, 2006
    Publication date: July 10, 2008
    Inventors: Gerd J. Harms, Alexander Schiedt, Manfred Bick, Wolfgang Hildebrandt
  • Publication number: 20080053735
    Abstract: A constant velocity joint (11) in the form of a counter track joint wherein, when the joint is in the aligned condition, the ratio (V1) of the pitch circle diameter (PCDS) of the shaft toothing in the inner joint part (15) in the power of three relative to the product of the ball diameter (DK) squared and pitch circle diameter (PCDB) of the balls (17) assumes a value ranging between 0.9 and 1.3.
    Type: Application
    Filed: November 2, 2004
    Publication date: March 6, 2008
    Applicant: GKN DRIVELINE INTERNATIONAL GMBH
    Inventors: Stephan Maucher, Wolfgang Hildebrandt, Anna Gremmelmaier, Ida Hassenrik
  • Patent number: 7232373
    Abstract: A driveshaft assembly having two CV joints and an intermediate shaft. One of the CV joints (11) includes an outer joint part (12) with first ball tracks (14), an inner joint part (17) with second ball tracks (18), and balls (19) held in a common plane by a cage (20). First and second angles of intersection of the ball tracks (14, 18) of a pair of tracks are identical in size and are positioned symmetrically relative to the joint axis. The ball cage (20) is axially fixed in the constant velocity joint. The intermediate shaft includes a longitudinal plunging unit (41) having a sleeve (42) with first ball grooves (43) which extend axially, a journal (44) with second ball grooves (45) which extend axially, balls (46) which are held in a cage (47) in groups in pairs of the first and second ball grooves (43, 45).
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: June 19, 2007
    Assignee: GKN Automotive GmbH
    Inventors: Wolfgang Hildebrandt, Thomas Weckerling, Stephan Maucher, Michael Ricks, Peter Bilz, Kiyoshi Taniyama
  • Publication number: 20060252558
    Abstract: A driveshaft assembly having two CV joints and an intermediate shaft. One of the CV joints (11) includes an outer joint part (12) with first ball tracks (14), an inner joint part (17) with second ball tracks (18), and balls (19) held in a common plane by a cage (20). First and second angles of intersection of the ball tracks (14, 18) of a pair of tracks are identical in size and are positioned symmetrically relative to the joint axis. The ball cage (20) is axially fixed in the constant velocity joint. The intermediate shaft includes a longitudinal plunging unit (41) having a sleeve (42) with first ball grooves (43) which extend axially, a journal (44) with second ball grooves (45) which extend axially, balls (46) which are held in a cage (47) in groups in pairs of the first and second ball grooves (43, 45).
    Type: Application
    Filed: July 7, 2006
    Publication date: November 9, 2006
    Inventors: Wolfgang Hildebrandt, Thomas Weckerling, Stephan Maucher, Michael Ricks, Peter Bilz, Kiyoshi Taniyama