Patents by Inventor Rainer GRODAU

Rainer GRODAU 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).

  • Rotary wing aircraft with a tail shroud
    Patent number: 9475578
    Abstract: A rotary wing aircraft with a tail rotor in a rotor duct of a shroud. A bumper projects from a lower transition region of said shroud, said lower transition region having a left hand and a right hand lower transition edge between respectively the left hand and the right hand annular surface around the rotor duct and the bumper. Upper leading edges of a vertical fin and of said shroud are provided with left hand and right hand trailing edges. A projection of the upper transition edge to an upright longitudinal plane is defined by a spline curve through points Pi (i=1 . . . 5) and a projection of the lower transition edge to the plane is defined by a spline curve through points Pi (i=6 . . . 10) defined by their respective coordinates (xi, zi) relative to a centre of the shrouded tail rotor.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: October 25, 2016
    Assignee: Airbus Helicopters Deutschland GmbH
    Inventors: Sebastian Mores, Alessandro D'Alascio, Rainer Grodau, Qinyin Zhang, Christian Wehle, Stefan Probst
  • ROTARY WING AIRCRAFT WITH A TAIL SHROUD
    Publication number: 20150158584
    Abstract: A rotary wing aircraft with a tail rotor in a rotor duct of a shroud. A bumper projects from a lower transition region of said shroud, said lower transition region having a left hand and a right hand lower transition edge between respectively the left hand and the right hand annular surface around the rotor duct and the bumper. Upper leading edges of a vertical fin and of said shroud are provided with left hand and right hand trailing edges. A projection of the upper transition edge to an upright longitudinal plane is defined by a spline curve through points Pi (i=1 . . . 5) and a projection of the lower transition edge to the plane is defined by a spline curve through points Pi (i=6 . . . 10) defined by their respective coordinates (xi, zi) relative to a centre of the shrouded tail rotor.
    Type: Application
    Filed: December 8, 2014
    Publication date: June 11, 2015
    Inventors: Sebastian MORES, Alessandro D'ALASCIO, Rainer GRODAU, Qinyin ZHANG, Christian WEHLE, Stefan PROBST