Patents by Inventor Jochem Grewe

Jochem Grewe 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: 12252183
    Abstract: A method for manufacturing a motor vehicle structural component from an extruded multichamber hollow profile. The method includes providing an extruded profile with at least two precursor hollow chambers which are separated from one another by an inner wall, wherein in at least one outer wall of at least one precursor hollow chamber in cross-section perpendicularly to a longitudinal extent of the extruded profile has a region with non-linear course. The extruded profile is formed in at least one of its end regions into the motor vehicle structural component, wherein at least the region with non-linear course of the at least one outer wall of the at least one precursor hollow chamber, with non-linear course in cross-section, is at least partially straightened, with a change in cross-section of the respective precursor hollow chamber into the cross-section of the corresponding hollow chamber of the motor vehicle structural component.
    Type: Grant
    Filed: April 24, 2024
    Date of Patent: March 18, 2025
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Gaurav Ahuja, Vijay Michael, Per Ivar Stemnes, Jochem Grewe
  • Publication number: 20240367728
    Abstract: A method for manufacturing a motor vehicle structural component from an extruded multichamber hollow profile. The method includes providing an extruded profile with at least two precursor hollow chambers which are separated from one another by an inner wall, wherein in at least one outer wall of at least one precursor hollow chamber in cross-section perpendicularly to a longitudinal extent of the extruded profile has a region with non-linear course. The extruded profile is formed in at least one of its end regions into the motor vehicle structural component, wherein at least the region with non-linear course of the at least one outer wall of the at least one precursor hollow chamber, with non-linear course in cross-section, is at least partially straightened, with a change in cross-section of the respective precursor hollow chamber into the cross-section of the corresponding hollow chamber of the motor vehicle structural component.
    Type: Application
    Filed: April 24, 2024
    Publication date: November 7, 2024
    Applicant: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Gaurav Ahuja, Vijay Michael, Per Ivar Stemnes, Jochem Grewe
  • Patent number: 11999413
    Abstract: The invention concerns a method for manufacturing a motor vehicle structural component (1) from an extruded multichamber hollow profile, with the following steps: a) provision of an extruded profile (2) with at least two precursor hollow chambers (8, 9) which are separated from one another by an inner wall (7), wherein at least one outer wall (3, 4) of at least one precursor hollow chamber (8, 9), in cross-section perpendicularly to the longitudinal extent of the extruded profile (2), has a region (16) with non-linear course, b) forming of the extruded profile (2) in at least one of its end regions into the motor vehicle structural component (1), wherein at least the region (16) with non-linear course of the at least one outer wall (3, 4) of the at least one precursor hollow chamber (8, 9), with non-linear course in cross-section, is at least partially straightened, with a change in cross-section of the respective precursor hollow chamber (8, 9) into the cross-section of the corresponding hollow chamber (1
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: June 4, 2024
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Gaurav Ahuja, Vijay Michael, Per Ivar Stemnes, Jochem Grewe
  • Patent number: 11773476
    Abstract: The present disclosure relates to a method for producing a motor vehicle component from a 6000-series aluminum alloy having the following method steps: providing a blank made of a 6000-series aluminum alloy, rapid heating of the blank by means of contact plates to a temperature between 450° C. and 600° C. in a time less than 20 seconds, ending of the heating procedure and optional homogenizing when a grain size between 20 and 50 ?m has resulted, quenching the blank thus tempered to a temperature less than or equal to 100° C., in a time less than 20 seconds, wherein the rapid heating and quenching of the blank is carried out in a total time of less than 50 seconds, applying a lubricant, at 20° C. to 100° C., forming the cooled blank in a forming tool, wherein the time between beginning the rapid heating and beginning the forming is less than 45 seconds, aging.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: October 3, 2023
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Jochem Grewe, Feng Jiao
  • Patent number: 11746403
    Abstract: A method for producing a motor vehicle component from a 6000 series aluminum alloy including providing a blank made of a 6000 series aluminum alloy, rapid heating of the blank to a temperature between 450 deg. C. and 600 deg. C. at a heating rate of more than 15 K/s in a period of less than 20 seconds, ending the heating process and optionally homogenizing, if a grain size between 20 and 50 ?m has been produced, quenching the blank thus tempered, applying a lubricant, preferably at 20 deg. C. to 100 deg. C., forming the cooled blank in a forming tool, wherein the time between completion of the heating process and the start of the forming is less than 30 seconds, and aging.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: September 5, 2023
    Assignee: BENTELER AUTOMOBILTECHNIK GmbH
    Inventors: Jochem Grewe, Feng Jiao, Friedrich Bohner, Jörn Tölle, Nikolay Soritov
  • Patent number: 11633796
    Abstract: A plate heat exchanger has two metal plates brought into abutment, with a solder material between the plates. The plates are heated up to a first temperature. The plates are placed into a mold, the mold surfaces of which have cavities for envisaged channel structures. Channel structures are formed by local internal pressure forming of at least one plate under pressurization by the tool. The plates are heated up to a second temperature. The plates are solder bonded at the abuted surfaces. A plate heat exchanger has two metal plates, wherein channel structures have been formed in at least one plate and the plates are bonded to one another by soldering away from the channel structures. Eutectic microstructures having a longest extent of less than 50 micrometers are formed in the solder layer.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: April 25, 2023
    Assignee: BENTELER AUTOMOBILETECHNIK GMBH
    Inventors: Max Boehnke, Ulrich Huschen, Elmar Grussmann, Ulrich Rusche, Jochem Grewe
  • Patent number: 11400532
    Abstract: A plate heat exchanger has two metal plates brought into abutment, with a solder material between the plates. The plates are heated up to a first temperature. The plates are placed into a mold, the mold surfaces of which have cavities for envisaged channel structures. Channel structures are formed by local internal pressure forming of at least one plate under pressurization by the tool. The plates are heated up to a second temperature. The plates are solder bonded at the abuted surfaces. A plate heat exchanger has two metal plates, wherein channel structures have been formed in at least one plate and the plates are bonded to one another by soldering away from the channel structures. Eutectic microstructures having a longest extent of less than 50 micrometers are formed in the solder layer.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: August 2, 2022
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Max Boehnke, Ulrich Huschen, Elmar Grussmann, Ulrich Rusche, Jochem Grewe
  • Patent number: 11331994
    Abstract: The disclosure relates to a coupling element for connecting vehicle components of an underfloor arrangement of a battery-powered motor vehicle, wherein the underfloor arrangement having a battery holder and at least one axle arrangement, the coupling element having at least one first connecting portion for fastening on the axle arrangement, and having at least one planar attachment surface for fastening on the battery holder, wherein the coupling element is designed in the form of an extruded multichamber profile. The disclosure also relates to an underfloor arrangement, for a motor vehicle, having two axle arrangements and a battery holder, arranged between the axle arrangements, wherein the battery holder has a side wall which delimits the battery holder in the outward direction, wherein at least one coupling element according to one of the preceding claims is provided, and connects at least one axle arrangement and the battery holder in a load-directing manner.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: May 17, 2022
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Christian Handing, Jochem Grewe, Stefan Schmitz
  • Patent number: 11040740
    Abstract: The present invention relates to a sill of a vehicle body (3). The sill is characterized in that the sill (10) comprises at least a first sill profile (11) and a second sill profile (12), in that the sill profiles (11, 12) extend in the longitudinal direction of the sill (10) and each comprise a connecting surface (111, 121) which faces the further sill profile (11, 12), in that the connecting surfaces (111, 121) at least partially run vertically, in that the at least two sill profiles (11, 12) over at least one area of the connecting surfaces (111, 121) of the sill profiles (11, 12) are adhesively connected to one another, and in that at least on one of the sill profiles (11, 12), adjacent to the connecting surface (111, 121), at least one snap-in protrusion (14) is formed onto it which interlocks with at least one snap-in receiving section (15) of another one of the sill profiles (11, 12).
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: June 22, 2021
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Stefan Grottke, Stefan Schmitz, Jochem Grewe
  • Publication number: 20200140018
    Abstract: The present invention relates to a sill of a vehicle body (3). The sill is characterized in that the sill (10) comprises at least a first sill profile (11) and a second sill profile (12), in that the sill profiles (11, 12) extend in the longitudinal direction of the sill (10) and each comprise a connecting surface (111, 121) which faces the further sill profile (11, 12), in that the connecting surfaces (111, 121) at least partially run vertically, in that the at least two sill profiles (11, 12) over at least one area of the connecting surfaces (111, 121) of the sill profiles (11, 12) are adhesively connected to one another, and in that at least on one of the sill profiles (11, 12), adjacent to the connecting surface (111, 121), at least one snap-in protrusion (14) is formed onto it which interlocks with at least one snap-in receiving section (15) of another one of the sill profiles (11, 12).
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Inventors: Stefan Grottke, Stefan Schmitz, Jochem Grewe
  • Patent number: 10501829
    Abstract: A method for producing a structural sheet metal component formed from an aluminum alloy for a motor vehicle includes providing an aluminum sheet blank in a state T4 or T5 or T6 or T7, heating the aluminum sheet blank to a heating temperature between 100° C. and 450° C., forming the aluminum sheet blank to a structural sheet metal component, and heat post-treatment of the formed structural sheet metal component.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: December 10, 2019
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Friedrich Bohner, Jochen Dörr, Jochem Grewe
  • Patent number: 10486221
    Abstract: A method for producing a motor vehicle component from a lightweight metal alloy is disclosed including extruding a profile having at least two wall thicknesses that are mutually dissimilar in the cross section, rolling the extruded profile in portions in the extrusion direction. The rollers in the roller spacing thereof are variable. Cutting-to-length the extruded and in portions rolled profile so as to form a semi-finished product, and forming the semi-finished product so as to form the motor vehicle component.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: November 26, 2019
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Georg Frost, Jochem Grewe
  • Patent number: 10351175
    Abstract: Motor vehicle hybrid structural part, comprising a main structural part 2 and at least one reinforcement patch the main structural part 2 being embodied as a sheet-metal structural part made of a steel alloy or light metal alloy and the reinforcement patch being made of light metal, which is characterized in that the reinforcement patch is an extruded structural part with at least two wall thicknesses differing from one another in cross section.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 16, 2019
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Georg Frost, Jochem Grewe, Gero Muellers, Christian Handing
  • Publication number: 20180236950
    Abstract: A motor vehicle sheet metal molding of the invention is produced by hot forming from a metal sheet composed of an aluminum alloy which cannot be precipitation hardened, which contains at least magnesium and optionally manganese in addition to aluminum as alloy component. The motor vehicle sheet metal molding after forming has, at least locally, degrees of deformation which are above the forming limit curve of the aluminum alloy at room temperature. To produce the motor vehicle sheet metal molding, the metal sheet is heated at least locally to a temperature in the range from 200° C. to 400° C. over a period of from 1 to 60 seconds. The heated metal sheet is subsequently placed in a forming tool of a forming press and formed to produce the motor vehicle sheet metal molding.
    Type: Application
    Filed: April 20, 2018
    Publication date: August 23, 2018
    Applicant: Benteler Automobiltechnik GmbH
    Inventors: Holger Diersmann, Jochen Dorr, Jochem Grewe, Andreas Hitz
  • Patent number: 10029624
    Abstract: A motor vehicle sheet metal molding of the invention is produced by hot forming from a metal sheet composed of an aluminum alloy which cannot be precipitation hardened, which contains at least magnesium and optionally manganese in addition to aluminum as alloy component. The motor vehicle sheet metal molding after forming has, at least locally, degrees of deformation which are above the forming limit curve of the aluminum alloy at room temperature. To produce the motor vehicle sheet metal molding, the metal sheet is heated at least locally to a temperature in the range from 200° C. to 400° C. over a period of from 1 to 60 seconds. The heated metal sheet is subsequently placed in a forming tool of a forming press and formed to produce the motor vehicle sheet metal molding.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: July 24, 2018
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Holger Diersmann, Jochen Dörr, Jochem Grewe, Andreas Hitz
  • Patent number: 9944153
    Abstract: A motor vehicle door and a method for producing the motor vehicle door is disclosed having a frame plate coupled to reinforcement components and at least half of all of the reinforcement components are produced as extruded profiles which are subsequently press-formed three-dimensionally. The extruded profiles have different wall thicknesses.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: April 17, 2018
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Edwin List Clausen, Jochem Grewe, Joern Toelle, Dariusz Straznikiewicz, Martin Schroeter, Gero Muellers
  • Patent number: 9938613
    Abstract: A method for producing a motor vehicle component is disclosed having the steps of providing a strain-hardened blank composed of a 5000 grade aluminum alloy, partially heating the blank in a first region to a temperature higher than 350° C., in particular to 400° C., the blank being kept at a temperature between 15° C. and 30° C., preferably at 20° C., in a second region, and the partial heating being performed in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, adjusting the temperature of the blank as a whole to between 150 and 350° C. in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and deforming the blank to form the motor vehicle component in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and cooling the motor vehicle component.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: April 10, 2018
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Friedrich Bohner, Jochen Doerr, Jochem Grewe, Christian Hielscher, Joern Toelle, Boris Rauscher
  • Patent number: 9914491
    Abstract: A method for producing a motor vehicle component, is disclosed having the steps of—providing a blank composed of a 5000 grade naturally hard aluminum alloy with an initial yield strength, completely heating the blank to a forming temperature between 150° C. and 350° C., preferably between 200° C. and 300° C. in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and performing forming in a forming tool in less than 20 s, preferably less than 10 s and in particular between 2 and 5 s, the temperature being held between 150° C. and 350° C. in at least one first region of the blank, and cooling to a temperature lower than 250° C., in particular lower than 200° C., being performed in a second region during or after the deformation.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: March 13, 2018
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Friedrich Bohner, Jochen Doerr, Jochem Grewe, Christian Hielscher, Joern Toelle, Boris Rauscher
  • Patent number: 9821859
    Abstract: A method for producing a motor vehicle component is disclosed having the steps of providing a strain-hardened blank composed of a 5000 grade aluminum alloy, partially heating the blank in a first region to a temperature higher than 350° C., in particular higher than 400° C., and in a second region to a temperature between 150° C. and 350° C., preferably to 300° C., in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s, and transferring the blank into a cooling tool, and performing cooling in less than 20 s, preferably less than 10 s and in particular in 2 to 5 s.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: November 21, 2017
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Friedrich Bohner, Jochen Doerr, Jochem Grewe, Christian Hielscher, Joern Toelle, Boris Rauscher
  • Patent number: 9719161
    Abstract: A method for producing a motor vehicle component includes the steps of providing a precipitation-hardenable blank composed of a 6000 or 7000 grade aluminum alloy, solution-annealing the blank at a temperature between 350° C. and 550° C. for a time period of 2 to 30 min., in particular 3 to 20 min. and preferably 5 to 15 min., in particular at a temperature between 440° C. and 480° C. in the case of a 7000 grade aluminum alloy, and in particular at a temperature between 490° C. and 545° C. in the case of a 6000 grade aluminum alloy, subjecting the solution-annealed blank to partially different quenching, a first region being quenched to a temperature between 150° C. and 250° C., and a further region being quenched to a temperature below 150° C., deforming the blank during or after the partially different quenching.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: August 1, 2017
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Friedrich Bohner, Jochen Doerr, Jochem Grewe, Christian Hielscher, Joern Toelle, Boris Rauscher