Patents by Inventor Kersten Hahn

Kersten Hahn 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: 8663047
    Abstract: A superimposed transmission for driving a rotational speed-variable work machine having the following design: an input shaft (2) is connected to an intermediate shaft (3); a pump wheel (5) of a hydrodynamic converter (6) rotates with the intermediate shaft (3); a turbine wheel (7) of the hydrodynamic converter (6) rotates with a superposition means; the intermediate shaft (3) and the transmission means are connected to an output shaft (14) by means of a differential gear (4); and the transmission means is designed as at least one coupling shaft (10), which connection the turbine wheel (7) of the hydrodynamic converter (6) to the differential gear (4). The at least one coupling shaft (10) runs parallel to the intermediate shaft (3). An additional hydrodynamic converter (15) can be present and/or the coupling shaft (10) can be connected in an engageable manner directly to the input shaft (2) by means of an additional transmission (18) for starting the transmission.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: March 4, 2014
    Assignee: Voith Patent GmbH
    Inventors: Marco Schroth, Kersten Hahn, Hartmut Garf, Karl Hilpert
  • Publication number: 20110251009
    Abstract: The invention concerns a superimposed transmission for driving a rotational speed-variable work machine having the following design: an input shaft (2) is connected to an intermediate shaft (3); a pump wheel (5) of a hydrodynamic converter (6) rotates with the intermediate shaft (3); a turbine wheel (7) of the hydrodynamic converter (6) rotates with a superposition means; the intermediate shaft (3) and the transmission means are connected to an output shaft (4) by means of a differential gear (14); and the transmission means is designed as at least one coupling shaft (10), which connection the turbine wheel (7) of the hydrodynamic converter (6) to the differential gear (4). To do so, said at least one coupling shaft (10) runs parallel to the intermediate shaft (3).
    Type: Application
    Filed: July 16, 2009
    Publication date: October 13, 2011
    Applicant: VOITH PATENT GMBH
    Inventors: Marco Schroth, Kersten Hahn, Hartmut Garf, Karl Hilpert