Patents by Inventor Christoph Hutzel

Christoph Hutzel 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: 7824302
    Abstract: A transmission having gearsets (RS1-RS4), shafts (1-8) and shifting elements (A-E). A carrier of gearset (RS4) and an input shaft forming shaft (1), a carrier of gearset (RS3) and an output shaft form shaft (2), sun gears of gearsets (RS3, RS4) form shaft (3). A ring gear of gearset (RS1) forms shaft (4). Ring and sun gears respectively of gearsets (RS2, RS1) couple as shaft (5), a carrier of gearset (RS1) and a ring gear of gearset (RS3) form shaft (6), sun and ring gears respectively of gearsets (RS2, RS4) couple as shaft (7). A carrier of gearset (RS2) forms shaft (8). Located in the flow of power: elements (A, B) are respectively between shafts (3, 4) and a housing, element (C) between shafts (5, 1), element (D) between shafts (8, 2) or (8, 6) and element (E) between two of shafts (5, 7, 8).
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: November 2, 2010
    Assignee: ZF Friedrichshafen AG
    Inventors: Gabor Diosi, Josef Haupt, Gerhard Gumpoltsberger, Peter Ziemer, Hagen Döpfert, Uwe Firzlaff, Martin Brehmer, Christoph Hutzel
  • Publication number: 20080269004
    Abstract: The 8-stage transmission possesses one input and one output shaft (AN, AB), four planetary gearsets (RS1, RS2, RS3, RS4), eight rotational shafts (1 to 8) and five shifting elements (A to E). One carrier (ST4) of the fourth planetary gearset (RS4) and the input shaft (AN) are bound together to form the first shaft (1), a carrier (ST3) of the third planetary gearset (RS3) and the output shaft (AB) serve as the second shaft (2), a sun gear (SO3) of the third planetary gearset (RS3) and a sun gear (SO4) of the fourth planetary gearset (RS4) form the third shaft (3). An internal gear (HO1) of the first planetary gearset (RS1) forms the fourth shaft (4).
    Type: Application
    Filed: March 15, 2006
    Publication date: October 30, 2008
    Applicant: ZF Friedrichshafen AG
    Inventors: Gabor Diosi, Josef Haupt, Gerhard Gumpol Tsberger, Peter Ziemer, Hagen Dopfert, Uwe Firzlaff, Martin Brehmer, Christoph Hutzel