Patents by Inventor Rolf Heinemann

Rolf Heinemann 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: 6881451
    Abstract: A process for producing a wear-resistant cylinder bearing surface includes rotating a laser about its longitudinal axis and simultaneously advancing the laser in a direction of the longitudinal axis which is coaxial with a cylinder of a crankcase. A powdery material is fed through the laser and a jet of the powdery material is directed toward the cylinder bearing surface. A laser beam is deflected to an impact region where the jet of the powdery material impinges on the cylinder bearing surface. The jet of the powdery material passes through the laser beam. The laser beam at least partially melts the impact region before the powdery material impinges on the impact region. A device for producing wear-resistant surfaces is also provided.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: April 19, 2005
    Assignee: Volkswagen AG
    Inventors: Rolf Heinemann, Klaus Färber, Achim Sach
  • Patent number: 6634179
    Abstract: A wear-resistant surface is formed on a component formed of an AlSi alloy by using a thermal spraying or a laser beam treatment. A thermally conductive device is brought into a thermally conductive contact with the component so that the thermally conductive device touches the component during the step of forming the wear-resistant surface. The thermally conductive device is actively cooled.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: October 21, 2003
    Assignee: Volkswagen AG
    Inventors: Rolf Heinemann, Klaus Färber, Thomas Heider
  • Publication number: 20020069819
    Abstract: A process for producing a wear-resistant cylinder bearing surface includes rotating a laser about its longitudinal axis and simultaneously advancing the laser in a direction of the longitudinal axis which is coaxial with a cylinder of a crankcase. A powdery material is fed through the laser and a jet of the powdery material is directed toward the cylinder bearing surface. A laser beam is deflected to an impact region where the jet of the powdery material impinges on the cylinder bearing surface. The jet of the powdery material passes through the laser beam. The laser beam at least partially melts the impact region before the powdery material impinges on the impact region. A device for producing wear-resistant surfaces is also provided.
    Type: Application
    Filed: August 20, 2001
    Publication date: June 13, 2002
    Inventors: Rolf Heinemann, Klaus Farber, Achim Sach
  • Patent number: 6397792
    Abstract: The invention relates to an internal combustion engine with at least one cylinder bank of cylinders (12) arranged in a row in at least one cylinder block, and at least one fluid cooling system allocated to a particular cylinder bank. Said fluid cooling system has at least one fluid channel (10) configured in a cylinder block. This fluid channel (10) conducts fluid through the cylinder block in order to provide a water jacket adjacent to the cylinders (12) for cooling the same. Said fluid channel (10) is delimited by a floor (16) on the crankcase side in a cylinder block situated between a cylinder head and the crankcase. This floor (16) of the fluid channel (10) is configured in the form of a curved plane.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: June 4, 2002
    Assignee: Volkswagen AG
    Inventor: Rolf Heinemann
  • Publication number: 20020025386
    Abstract: A method of treating a surface of a component includes performing a thermal spraying in a given treatment zone on a surface of a component. A laser surface treatment is performed in front of the given treatment zone, at the given treatment zone and/or behind the given treatment zone. The thermal spraying and the laser surface treatment are performed in a single processing step. A device for treating a component surface includes a plasma torch for providing a plasma jet and a laser for providing a laser beam. The plasma torch and the laser are configured to sweep the plasma jet and the laser beam over a component surface and to perform a surface treatment in a single pass.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 28, 2002
    Inventors: Rolf Heinemann, Klaus Farber, Thomas Heider
  • Publication number: 20020012753
    Abstract: A wear-resistant surface is formed on a component formed of an AlSi alloy by using a thermal spraying or a laser beam treatment. A thermally conductive device is brought into a thermally conductive contact with the component so that the thermally conductive device touches the component during the step of forming the wear-resistant surface. The thermally conductive device is actively cooled.
    Type: Application
    Filed: August 20, 2001
    Publication date: January 31, 2002
    Inventors: Rolf Heinemann, Klaus Farber, Thomas Heider
  • Patent number: 6017151
    Abstract: A bearing arrangement which assures positive geometrical centering between two separately produced bearing components, preferably in internal combustion engines, includes a first bearing component provided with projections extending beyond a parting surface between the components and a second bearing component of lower hardness than the projections so that the projections displace the material of the second bearing component during assembly of the bearing arrangement.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: January 25, 2000
    Assignee: Volkswagen AG
    Inventor: Rolf Heinemann
  • Patent number: 5715630
    Abstract: In a vehicle door with a cross-arm type window lift and a lock assembly, which can be produced more easily and cost-effectively by employing modular construction and by using individual components for several different functions. The invention is distinguished by the guide rail of the cross-arm window lift simultaneously functioning as the support for the lock assembly, by the guide for guiding the window being integrated in the base body of the lock assembly and by the outer edge of a base plate supporting a window lift having a circumferential profiled sealing section in the interior sheet metal door panel for sealing a mounting opening, so that the protection of electrical/electronic components is provided in the dry space without additional steps.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: February 10, 1998
    Assignee: Brose Fahrzeugteile GmbH & Co. KG
    Inventors: Ferenc Szerdahelyi, Barry Edwards, Hans-Dieter Lieb, Rolf Heinemann, Horst Seiler, Eberhard Pleiss
  • Patent number: 5033236
    Abstract: Motor vehicle door 1 with an integrated lattice-type support frame 2 receiving a window lifter. Support frame 2 is mountable in motor vehicle door 1 connected by hinges 36 and 37 with a passenger compartment of a motor vehicle. At least one support 3, 4 of support frame 2 is connected at its connecting ends 45 and 46 with force inleads 47 and 48 disposed in motor vehicle door 1, said inleads being in positive contact with areas of the passenger compartment which are adjacent on both sides with motor vehicle door 1 (FIG. 5).
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: July 23, 1991
    Assignee: Brose Fahrzeugteile GmbH & Co. KG
    Inventors: Ferenc Szerdahelyi, H. Peter Hess, Rolf Heinemann, Klaus Leidner