Patents by Inventor Christian DOLL

Christian DOLL 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: 12240050
    Abstract: The invention relates to a method machining a particularly planar component by means of electrochemical machining, wherein the component has internal stresses resulting particularly from preceding manufacturing steps. In a first step a) of the method, the component to be machined is provided. Subsequently, in step b), at least two tools are provided in the form of electrodes and, in step c), an electrolyte is provided between the component and the at least two electrodes. In step d), a positive voltage is applied to the component and a negative voltage is applied to the at least two electrodes. Thus, in step e), by moving the at least two electrodes along their respective movement paths with respect to the component, electrochemical machining can take place; in the process, the gap between each electrode and the component is flushed with the electrolyte at least intermittently.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: March 4, 2025
    Assignee: MTU Aero Engines AG
    Inventors: Nicole Feiling, Markus Zeis, Roland Huttner, Christian Doll
  • Publication number: 20230055362
    Abstract: The invention relates to a machining apparatus for electrochemically removing component layers of a component, having at least one electrode, which is mounted so as to be movable along at least one infeed axis, and having at least one auxiliary electrode, which is mounted so as to be movable along an auxiliary infeed axis, wherein a gap for arranging the component for electrochemically removing the component layers extends between the at least one electrode and the at least one auxiliary electrode. At least the infeed axis and a longitudinal extension direction of the gap enclose an acute angle with each other. The machining apparatus comprises at least one oscillation device (40), which is set up at least to move the at least one electrode in an oscillating manner along the infeed axis and relative to the at least one auxiliary electrode.
    Type: Application
    Filed: February 10, 2021
    Publication date: February 23, 2023
    Applicant: MTU Aero Engines AG
    Inventors: Roland Huttner, Christian Doll, Matthias Hillmann
  • Publication number: 20220410297
    Abstract: The invention relates to a device and a method for electrochemically treating a component, comprising at least one electrode which has at least one working surface with an outer contour that is shaped so as complement the surface of the component to be produced, thereby forming a gap, and comprising at least one contour surface which adjoins said working surface and in which at least one cleaning opening is arranged, a cleaning fluid flowing through said cleaning opening. According to the method, at least one component is provided, a voltage is applied between the component and the at least one electrode during the electrochemical treatment, and the electrode is moved relative to the component.
    Type: Application
    Filed: August 13, 2020
    Publication date: December 29, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Nicole Feiling, Markus Zeis, Roland Huttner, Christian Doll
  • Publication number: 20220355405
    Abstract: The invention relates to an ECM system comprising a holder for the arranging of at least one component to be machined and at least one machining station for the electrochemical machining of the at least one component at at least one machining position. The ECM system has a positioning apparatus, which is designed to mount, in a predefined position, a machining platform arranged on the positioning apparatus, and the machining platform comprises at least one machining station having at least one electrode arranged thereon, which electrode can be moved along a machining path in order to machine the at least one component that can be arranged on the holder.
    Type: Application
    Filed: August 13, 2020
    Publication date: November 10, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Roland Huttner, Markus Zeis, Christian Doll, Rolf Kneilling
  • Publication number: 20220274195
    Abstract: The invention relates to a method machining a particularly planar component by means of electrochemical machining, wherein the component has internal stresses resulting particularly from preceding manufacturing steps. In a first step a) of the method, the component to be machined is provided. Subsequently, in step b), at least two tools are provided in the form of electrodes and, in step c), an electrolyte is provided between the component and the at least two electrodes. In step d), a positive voltage is applied to the component and a negative voltage is applied to the at least two electrodes. Thus, in step e), by moving the at least two electrodes along their respective movement paths with respect to the component, electrochemical machining can take place; in the process, the gap between each electrode and the component is flushed with the electrolyte at least intermittently.
    Type: Application
    Filed: July 22, 2020
    Publication date: September 1, 2022
    Applicant: MTU Aero Engines AG
    Inventors: Nicole Feiling, Markus Zeis, Roland Huttner, Christian Doll
  • Patent number: 10137516
    Abstract: The invention relates to a machine having a base (300) and at least one work station (306) that has a module (50) for electrochemically machining a workpiece (51). The module comprises: a frame (54); and an electrode arrangement, having at least one electrode (60, 160), which is mechanically connected to the frame, and a drive (56, 156) for moving this electrode, which drive is attached to the frame; a workpiece holder (310, 311) for separably attaching the workpiece; and a positioning device (312, 313) for displacing the workpiece holder and the module relative to each other.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: November 27, 2018
    Assignee: MTU AERO ENGINES AG
    Inventors: Roland Huttner, Heinz Dietz, Christian Doll, Hermann Baur, Rolf Kneilling
  • Publication number: 20160074952
    Abstract: The invention relates to a machine having a base (300) and at least one work station (306) that has a module (50) for electrochemically machining a workpiece (51). The module comprises: a frame (54); and an electrode arrangement, having at least one electrode (60, 160), which is mechanically connected to the frame, and a drive (56, 156) for moving this electrode, which drive is attached to the frame; a workpiece holder (310, 311) for separably attaching the workpiece; and a positioning device (312, 313) for displacing the workpiece holder and the module relative to each other.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 17, 2016
    Inventors: Roland HUTTNER, Heinz DIETZ, Christian DOLL, Hermann BAUR, Rolf KNEILLING