Patents by Inventor Josef Zwack

Josef Zwack 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).

  • Electric machine
    Patent number: 9871425
    Abstract: An electric machine includes a housing which accommodates a stator and a rotor rotationally supported about an axis of rotation, and has a front/rear air inlet opening on a top face and an air outlet opening therebetween. A front/rear air conveying element draws into the air inlet openings air which is discharged from the air outlet opening during operation. A cooler is mounted on the top face of the housing, covering the air inlet openings and the air outlet opening in a hood-like manner, such that discharged air is fed back to the air inlet openings. The cooler has a front/rear partition arranged between the air outlet opening and the corresponding air inlet opening and extending upward from the top face. Air guiding elements are arranged in the housing and/or in the cooler for feeding discharged air at least partially to the respective other air inlet opening.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: January 16, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Felix Noack, Sebastian Weiss, Patric Willems, Josef Zwack
  • Fluid-cooled electric machine
    Patent number: 9300189
    Abstract: A fluid-cooled electric machine includes a fluid circuit and an integrated pump element which executes a pumping action to conduct fluid through the fluid circuit as a result of a rotational movement of the electric machine. The electric machine includes a stator and a rotor arranged to demarcate with the stator a conical air gap which is flooded with fluid.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: March 29, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Rudolf Hautz, Klaus Neupert, Martin Obermayr, Martin Stark, Josef Watzinger, Josef Zwack
  • ELECTRIC MACHINE
    Publication number: 20140028124
    Abstract: An electric machine includes a housing which accommodates a stator and a rotor rotationally supported about an axis of rotation, and has a front/rear air inlet opening on a top face and an air outlet opening therebetween. A front/rear air conveying element draws into the air inlet openings air which is discharged from the air outlet opening during operation. A cooler is mounted on the top face of the housing, covering the air inlet openings and the air outlet opening in a hood-like manner, such that discharged air is fed back to the air inlet openings. The cooler has a front/rear partition arranged between the air outlet opening and the corresponding air inlet opening and extending upward from the top face. Air guiding elements are arranged in the housing and/or in the cooler for feeding discharged air at least partially to the respective other air inlet opening.
    Type: Application
    Filed: March 13, 2012
    Publication date: January 30, 2014
    Applicant: Siemens Aktiengesellschaft
    Inventors: Felix Noack, Sebastian Weiss, Patric Willems, Josef Zwack
  • FLUID-COOLED ELECTRIC MACHINE
    Publication number: 20130119830
    Abstract: A fluid-cooled electric machine includes a fluid circuit and an integrated pump element which executes a pumping action to conduct fluid through the fluid circuit as a result of a rotational movement of the electric machine. The electric machine includes a stator and a rotor arranged to demarcate with the stator a conical air gap which is flooded with fluid.
    Type: Application
    Filed: June 14, 2011
    Publication date: May 16, 2013
    Applicant: Siemens Aktiengesellschaft
    Inventors: Rudolf Hautz, Klaus Neupert, Martin Obermayr, Martin Stark, Josef Watzinger, Josef Zwack