Patents by Inventor Herald Pfeffinger

Herald Pfeffinger 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).

  • Process for the chip-forming machining of thermally sprayed cylinder barrels
    Patent number: 7584735
    Abstract: In a process for chip-forming machining of thermally sprayed cylinder barrels of a cylinder crankcase, a cylinder crankcase is cast, those surfaces of the subsequent cylinder barrels which are to be thermally coated are roughened, the cylinder barrels are coated by a thermal spraying process, and the cylinder barrels are remachined to final dimensions. Machining of an insertion bevel and/or an end bevel and/or the cylinder head sealing surface and/or the crankshaft space and/or a cylinder bore is carried out in a chip-forming manner, and a respective chip-forming tool is guided so that the respective cutting edges penetrate into the material which is to be removed from the outside.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: September 8, 2009
    Assignee: Daimler AG
    Inventors: Jens Boehm, Dieter Brackenhammer, Stefan Diessner, Axel Heuberger, Patrick Izquierdo, Herald Pfeffinger, Dezsoe Schilling, Juergen Traber, Nazario Vocino, Walter Zwink
  • Process for processing cylinder crankcases having sprayed cylinder barrels
    Patent number: 7415958
    Abstract: In a process for processing cylinder crankcases having sprayed cylinder barrels, in which process a cylinder crankcase is cast, those surfaces of the subsequent cylinder barrels which are to be thermally coated are roughened, the cylinder barrels are coated by a thermal spraying process, and the cylinder barrels are remachined to final dimensions. After the thermal spraying process, coating material is at least partially removed from the crankshaft-side part of the cylinder crankcase.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: August 26, 2008
    Assignee: Daimler AG
    Inventors: Jens Boehm, Dieter Brackenhammer, Stefan Diessner, Axel Heuberger, Patrick Izquierdo, Herald Pfeffinger, Dezsoe Schilling, Juergen Traber, Nazario Vocino, Walter Zwink
  • Process for processing cylinder crankcases having sprayed cylinder barrels
    Publication number: 20060032473
    Abstract: In a process for processing cylinder crankcases having sprayed cylinder barrels, in which process a cylinder crankcase is cast, those surfaces of the subsequent cylinder barrels which are to be thermally coated are roughened, the cylinder barrels are coated by a thermal spraying process, and the cylinder barrels are remachined to final dimensions. After the thermal spraying process, coating material is at least partially removed from the crankshaft-side part of the cylinder crankcase.
    Type: Application
    Filed: August 4, 2005
    Publication date: February 16, 2006
    Inventors: Jens Boehm, Dieter Brackenhammer, Stefan Diessner, Axel Heuberger, Patrick Izquierdo, Herald Pfeffinger, Dezsoe Schilling, Juergen Traber, Nazario Vocino, Walter Zwink
  • Process for the chip-forming machining of thermally sprayed cylinder barrels
    Publication number: 20060026827
    Abstract: In a process for chip-forming machining of thermally sprayed cylinder barrels of a cylinder crankcase, a cylinder crankcase is cast, those surfaces of the subsequent cylinder barrels which are to be thermally coated are roughened, the cylinder barrels are coated by a thermal spraying process, and the cylinder barrels are remachined to final dimensions. Machining of an insertion bevel and/or an end bevel and/or the cylinder head sealing surface and/or the crankshaft space and/or a cylinder bore is carried out in a chip-forming manner, and a respective chip-forming tool is guided so that the respective cutting edges penetrate into the material which is to be removed from the outside.
    Type: Application
    Filed: August 4, 2005
    Publication date: February 9, 2006
    Inventors: Jens Boehm, Dieter Brackenhammer, Stefan Diessner, Axel Heuberger, Patrick Izquierdo, Herald Pfeffinger, Dezsoe Schilling, Juergen Traber, Nazario Vocino, Walter Zwink