Patents by Inventor Andreas Jöckel

Andreas Jöckel 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).

  • Publication number: 20080309174
    Abstract: The invention relates to an electric motor (1) with permanent magnet excitation, comprising a stator (2), a rotor (8), comprising a hollow shaft (13) on which the permanent magnets (9) are positioned. The hollow shaft (13) is sealed tight against an output shaft (7) at least at the end faces thereof and a suitable coolant is provided in the enclosed cavity (14) which, during operation of the electric motor, evaporates from the relatively hot hollow shaft in the region of the permanent magnets (9) and condenses in the region of the relatively cold output shaft (7) such as to introduce a radial and axial heat transport.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 18, 2008
    Applicant: Siemens Aktiengesellschaft
    Inventor: Andreas Jockel
  • Publication number: 20080036328
    Abstract: In order to be able to electric drives in very tight installation spaces, e.g. in propulsion vehicles or machine tools, an electric machine (1) is proposed having a stator and a rotor (28), with the laminations (2) of the stator have axial slots (4) and teeth (5, 6) extending between adjacent slots (4) in direction air gap. At least a predefined number of the teeth (6) is configured as a single-tooth winding (7),and at least one section (3) is provided in circumferential direction of the stator and is designed without slots but follows the contour of the stator bore (11) in the area of the air gap.
    Type: Application
    Filed: November 22, 2004
    Publication date: February 14, 2008
    Applicant: Siemens Aktiengesellschaft
    Inventors: Thilo Hoffmann, Andreas Jockel
  • Patent number: 6938555
    Abstract: A traction drive, in particular for rail cars, includes a permanent-excited synchronous motor, a traction converter with a pulsed inverter for powering the motor, and ohmic brake resistors. Cross-over switches are connected with a corresponding input terminal of the motor and can switch the input terminal between a corresponding output terminal of the pulsed inverter (for travel) and a terminal of a corresponding brake resistor (for braking). The brake resistors are electrically connected in a star configuration. The traction drive can operate with different supply voltages. There is no longer a need for a mechanical brake, and flat spots on the wheels can be prevented.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: September 6, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventor: Andreas Jöckel
  • Patent number: 6868793
    Abstract: A drive for a wheel set (1) of a chassis includes two wheels (3) positioned on a wheel set shaft (2), which can be driven by at least one internal rotor motor that encompasses the wheel set shaft (2) and has a stator (10) and a rotor (19). This configuration provides a compact direct drive.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: March 22, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thilo Hoffman, Andreas Jöckel, Martin Teichmann
  • Publication number: 20040222761
    Abstract: A traction drive, in particular for rail cars, includes a permanent-excited synchronous motor, a traction converter with a pulsed inverter for powering the motor, and ohmic brake resistors. Cross-over switches are connected with a corresponding input terminal of the motor and can switch the input terminal between a corresponding output terminal of the pulsed inverter (for travel) and a terminal of a corresponding brake resistor (for braking). The brake resistors are electrically connected in a star configuration. The traction drive can operate with different supply voltages. There is no longer a need for a mechanical brake, and flat spots on the wheels can be prevented.
    Type: Application
    Filed: June 7, 2004
    Publication date: November 11, 2004
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Andreas Jockel
  • Publication number: 20040011578
    Abstract: The invention relates to a drive for a wheel set (1) of a chassis, with the wheel set having two wheels (3) positioned on a wheel set shaft (2), which can be driven by at least one internal rotor motor that encompasses the wheel set shaft (2) and has a stator (10) and a rotor (19). This configuration provides a compact direct drive.
    Type: Application
    Filed: March 25, 2003
    Publication date: January 22, 2004
    Inventors: Thilo Hoffmann, Andreas Jockel, Martin Teichmann
  • Publication number: 20020101081
    Abstract: An electric motor driven rail vehicle with an internal combustion engine includes at least one generator/motor system with a permanent-magnet-excited synchronous machine or an asynchronous machine. The internal combustion engine and the permanent-magnet-excited synchronous machine or an asynchronous machine are mechanically coupled, preferably through a flange coupling. The rail vehicle can operate in dual mode, i.e., either with diesel power or with DC or AC electric power derived from a catenary. The diesel engine can function as a continuous engine brake by reversing the current flow in the current converter device.
    Type: Application
    Filed: January 25, 2002
    Publication date: August 1, 2002
    Inventor: Andreas Jockel