Patents by Inventor Günter Kornfeld

Günter Kornfeld 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: 10184460
    Abstract: A cusped-field thruster for a space system, wherein the cusped-field thruster comprises: at least two substantially annular permanent magnets arranged in an antipolar manner, wherein a magnetic pole piece is formed between the permanent magnets, and an anode, which comprises a permanent-magnetic material. The cusped-field thruster is configured such that a cusp is formed in a region adjacent to the anode of the cusped-field thruster.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: January 22, 2019
    Assignee: Airbus Defence and Space GmbH
    Inventors: Franz Georg Hey, Ulrich Johann, Guenter Kornfeld
  • Patent number: 10184459
    Abstract: A discharge chamber of an ion drive, an ion drive having a discharge chamber, and a diaphragm for being affixed in a discharge chamber of an ion drive. The discharge chamber comprises a diaphragm, wherein the diaphragm of the discharge chamber comprises a magnet and is disposed and/or affixed in the discharge chamber.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: January 22, 2019
    Assignee: Airbus DS GmbH
    Inventors: Franz Georg Hey, Guenter Kornfeld, Ulrich Johann
  • Publication number: 20180266403
    Abstract: A cusped-field thruster for a space system, wherein the cusped-field thruster comprises: at least two substantially annular permanent magnets arranged in an antipolar manner, wherein a magnetic pole piece is formed between the permanent magnets, and an anode, which comprises a permanent-magnetic material. The cusped-field thruster is configured such that a cusp is formed in a region adjacent to the anode of the cusped-field thruster.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 20, 2018
    Inventors: Franz Georg HEY, Ulrich JOHANN, Guenter KORNFELD
  • Publication number: 20170292505
    Abstract: A discharge chamber of an ion drive, an ion drive having a discharge chamber, and a diaphragm for being affixed in a discharge chamber of an ion drive. The discharge chamber comprises a diaphragm, wherein the diaphragm of the discharge chamber comprises a magnet and is disposed and/or affixed in the discharge chamber.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 12, 2017
    Inventors: Franz Georg Hey, Guenter Kornfeld, Ulrich Johann
  • Patent number: 9769915
    Abstract: The invention relates to a drive arrangement in a spacecraft, comprising several drive units (TW1,TW2,TW3), several individually controllable drive units that can be continuously applied to a common, constant voltage potential (HV), and a control of the axial thrust in the respective drive units is achieved due to the fact that the production of plasma in the respective drive units is individually controlled. In particular, the time-variable control of the production of plasma occurs by the time-variable control of the flow of neutral working gas (AG) in the ionization chamber (IK).
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: September 19, 2017
    Assignee: Thales Electronic Systems GmbH
    Inventors: Hans-Peter Harmann, Norbert Koch, Guenter Kornfeld
  • Patent number: 8944385
    Abstract: The invention relates to a surface section that is exposed to an ion flow, in particular for a drive arrangement in a spacecraft, comprising an electrostatic ion accelerator arrangement. According to the invention, in order to reduce erosion, an intermediate potential energy surface is provided, the surface being advantageous in that it allows a magnetic field that is essentially parallel to the surface section to be formed.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: February 3, 2015
    Assignee: Thales Electronic Systems GmbH
    Inventors: Hans-Peter Harmann, Norbert Koch, Guenter Kornfeld
  • Patent number: 8587202
    Abstract: The invention relates to an ion accelerator arrangement comprising an electrostatic acceleration field between a cathode to which a frame potential is applied and an anode to which a high-voltage potential is applied. The ion accelerator arrangement further comprises a gas supply system into which a gas-permeable, open porous insulator member is introduced. Also described is a high-voltage insulator arrangement that comprises such an insulator member and is suitable, inter alia, for such an ion accelerator arrangement and for the corona-resistant insulation of other components to which a high voltage is applied.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: November 19, 2013
    Assignee: Thales Electronic Systems GmbH
    Inventors: Hans-Peter Harmann, Norbert Koch, Guenter Kornfeld
  • Publication number: 20110089836
    Abstract: The invention relates to an ion accelerator arrangement comprising an electrostatic acceleration field between a cathode to which a frame potential is applied and an anode to which a high-voltage potential is applied. The ion accelerator arrangement further comprises a gas supply system into which a gas-permeable, open porous insulator member is introduced. Also described is a high-voltage insulator arrangement that comprises such an insulator member and is suitable, inter alia, for such an ion accelerator arrangement and for the corona-resistant insulation of other components to which a high voltage is applied.
    Type: Application
    Filed: September 12, 2008
    Publication date: April 21, 2011
    Inventors: Hans-Peter Harmann, Norbert Koch, Guenter Kornfeld
  • Publication number: 20110080085
    Abstract: The invention relates to a surface section that is exposed to an ion flow, in particular for a drive arrangement in a spacecraft, comprising an electrostatic ion accelerator arrangement. According to the invention, in order to reduce erosion, an intermediate potential energy surface is provided, the surface being advantageous in that it allows a magnetic field that is essentially parallel to the surface section to be formed.
    Type: Application
    Filed: September 12, 2008
    Publication date: April 7, 2011
    Inventors: Hans-Peter Harmann, Norbert Koch, Guenter Kornfeld
  • Publication number: 20110073713
    Abstract: The invention relates to a drive arrangement in a spacecraft, comprising several drive units (TW1,TW2,TW3), several individually controllable drive units that can be continuously applied to a common, constant voltage potential (HV), and a control of the axial thrust in the respective drive units is achieved due to the fact that the production of plasma in the respective drive units is individually controlled. In particular, the time-variable control of the production of plasma occurs by the time-variable control of the flow of neutral working gas (AG) in the ionisation chamber (IK).
    Type: Application
    Filed: September 12, 2008
    Publication date: March 31, 2011
    Inventors: Hans-Peter Harmann, Norbert Koch, Guenter Kornfeld
  • Patent number: 7247992
    Abstract: For an ion accelerator system having a special magnetic field structure with an alternating predominantly longitudinal and crosswise progression of the magnetic field, a geometry of the ionization chamber having a non-cylindrical shape of the chamber wall that is adapted to the progression of the magnetic field is proposed.
    Type: Grant
    Filed: December 13, 2003
    Date of Patent: July 24, 2007
    Assignee: Thales Electron Devices GmbH
    Inventors: Günter Kornfeld, Gregory Coustou, Norbert Koch
  • Patent number: 7247993
    Abstract: The invention relates to an ion accelerator arrangement which uses a combination of a magnetic field having a cusp structure and a cross-section of an ionisation chamber that is extended in one direction transversally in relation to the longitudinal axis. This enables the ionic current to be advantageously scaled.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: July 24, 2007
    Assignee: Thales Electron Devices GmbH
    Inventors: Günter Kornfeld, Gregory Coustou, Norbert Koch
  • Patent number: 7084572
    Abstract: The invention relates to various advantageous embodiments of a plasma-accelerator configuration, especially for the configuration and design of electron sources used for ionizing the working gas and/or neutralizing the discharged plasma jet.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: August 1, 2006
    Assignee: Thales Electron Devices GmbH
    Inventors: Günter Kornfeld, Werner Schwertfeger, Roland Lenz, Gregory Coustou
  • Patent number: 7075095
    Abstract: A multistage plasma accelerator system includes at least one intermediate electrode between the plasma chamber between electrodes that include each other. An especially good efficiency can be achieved by way of an uneven distribution of potential to the potential stages formed by the plurality of electrodes having a high potential gradient of the last stage, when the plasma beam emerges, and by a special shape of the magnetic field prevailing in the plasma chamber of the last stage.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: July 11, 2006
    Assignee: Thales Electron Devices GmbH
    Inventors: Günter Kornfeld, Gregory Coustou, Gregory Emsellem
  • Patent number: 6803705
    Abstract: For a plasma accelerator arrangement having a toroidal plasma chamber, a novel structure of the magnetic and/or electric fields is proposed which, in particular, permits multi-stage embodiments with substantially improved efficiency.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: October 12, 2004
    Assignee: Thales Electron Devices GmbH
    Inventors: Günter Kornfeld, Werner Schwertfeger
  • Patent number: 6798141
    Abstract: For a plasma accelerator arrangement having a focused electron beam introduced into a plasma chamber, an annular structure of the chamber and a hollow cylindrical form of the electron beam are presented. A beam-guiding magnet system and, if appropriate, an electrode system is preferably formed in a plurality of stages in an adapted toroidal form.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: September 28, 2004
    Assignee: Thales Electron Devices GmbH
    Inventors: Günter Kornfeld, Werner Schwertfeger
  • Patent number: 6523338
    Abstract: For a plasma accelerator arrangement in particular for use as an ion thruster in a spacecraft, a structure is proposed in connection with which an accelerated electron beam is admitted into an ionization chamber with fuel gas, and is guided through the ionization chamber in the form of a focused beam against an electric deceleration field, said electric deceleration field acting at the same time as an acceleration field for the fuel ions produced by ionization. The arrangement generates a focused beam of a largely neutral plasma with a high degree of efficiency. Configurations for electric and magnetic fields for guiding and focusing the beams are given by way of example.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: February 25, 2003
    Assignee: Thales Electron Devices GmbH
    Inventors: Günter Kornfeld, Jürgen Wegener, Harald Seidel