Patents by Inventor Matthias KROBOTH

Matthias KROBOTH 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).

  • TURBOFAN AIRCRAFT ENGINE WITH REDUCED NOISE EMISSION
    Publication number: 20170159609
    Abstract: The invention relates to a turbofan aircraft engine that comprises a primary duct including a combustion chamber; a first turbine disposed downstream of the combustion chamber; a compressor disposed upstream of the combustion chamber and coupled to the first turbine; and a second turbine disposed downstream of the first turbine and coupled to a fan for feeding a secondary duct of the turbofan aircraft engine. The bypass ratio of the inlet area of the secondary duct to the inlet area of the primary duct is at least 7 and the second turbine comprises at least two stages. The mean outer radius of the last stage of the second turbine divided by the length of the second turbine is at least 1.4.
    Type: Application
    Filed: April 5, 2016
    Publication date: June 8, 2017
    Inventors: Carsten SCHOENHOFF, Rudolf STANKA, Erich STEINHARDT, Claus RIEGLER, Stephen Royston WILLIAMS, Hans-Peter HACKENBERG, Eckart HENRICH, Stefan WEBER, Klaus Peter RUED, Hermann KLINGELS, Patrick WACKERS, Christoph BICHLMAIER, Stefan BUSAM, Matthias KROBOTH, Norbert HUEBNER
  • REDUCED NOISE TURBOFAN AIRCRAFT ENGINE
    Publication number: 20170159573
    Abstract: The invention relates to a turbofan aircraft engine that comprises a primary duct including a combustion chamber; a first turbine disposed downstream of the combustion chamber; a compressor disposed upstream of the combustion chamber and coupled to the first turbine; and a second turbine disposed downstream of the first turbine and coupled to a fan for feeding a secondary duct of the turbofan aircraft engine. The bypass ratio of the inlet area of the secondary duct to the inlet area of the primary duct is at least 7 and the second turbine comprises at least two stages. For the first stage the mean radius r of a stator vane expressed in inch divided by the number of stator vanes is at least 0.18.
    Type: Application
    Filed: April 5, 2016
    Publication date: June 8, 2017
    Inventors: Carsten SCHOENHOFF, Rudolf STANKA, Erich STEINHARDT, Claus RIEGLER, Stephen Royston WILLIAMS, Hans-Peter HACKENBERG, Eckart HENRICH, Stefan WEBER, Klaus Peter RUED, Hermann KLINGELS, Patrick WACKERS, Christoph BICHLMAIER, Stefan BUSAM, Matthias KROBOTH, Norbert HUEBNER