Patents Assigned to Sauer-Dafoss Inc.
  • Transmission concept for dual yoke hydrostatic units
    Patent number: 7892130
    Abstract: A power split transmission concept for two or three or four modes is provided with two variable hydrostatic units, an engine mechanically connected to the row 1 sun of a planetary gear set with at least two planetary rows, the second row of the planetary rows being connected to a row 2 sun, whereby both hydrostatic units stay connected with the same planetary element through all modes, one hydrostatic unit being connected to the sun of row 2 and the other hydrostatic unit being connected to a ring gear of planetary row 2.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: February 22, 2011
    Assignee: Sauer-Dafoss Inc.
    Inventors: Wilhelm Gollner, Eric R. Jacobson