Patents by Inventor Piotr Pawel Doerffer

Piotr Pawel Doerffer 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).

  • Seal for reducing flow leakage within a gas turbine engine
    Patent number: 11739652
    Abstract: A seal assembly for a gas turbine engine defining a central axis extending along an axial direction and including a rotating shaft extending at least partially along the axial direction. The seal assembly includes a first component coupled to a fixed structure or drivingly coupled to the rotating shaft. The seal assembly further includes a rotating component drivingly coupled to the rotating shaft of the gas turbine engine. Additionally, the first component and rotating component define an annular gap therebetween. The seal assembly also includes one or more flanges extending from the stationary component, the rotating component, or both. The flange(s) include a base and an external surface extending into the annular gap from the base to a tip. Additionally, the flange(s) defines an inlet port on the external surface fluidly coupled to an outlet port at the tip. As such, the flange(s) forms a seal within the annular gap.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: August 29, 2023
    Assignee: Avio Polska Sp. z o.o.
    Inventors: Krzysztof Tomasz Marugi, Michal Brykalski, Tomasz Kuba Borzecki, Tomasz Kalwak, Piotr Pawel Doerffer, Pawel Zdzislaw Flaszynski, Filip Aleksander Wasilczuk
  • SEAL FOR REDUCING FLOW LEAKAGE WITHIN A GAS TURBINE ENGINE
    Publication number: 20210108529
    Abstract: A seal assembly for a gas turbine engine defining a central axis extending along an axial direction and including a rotating shaft extending at least partially along the axial direction. The seal assembly includes a first component coupled to a fixed structure or drivingly coupled to the rotating shaft. The seal assembly further includes a rotating component drivingly coupled to the rotating shaft of the gas turbine engine. Additionally, the first component and rotating component define an annular gap therebetween. The seal assembly also includes one or more flanges extending from the stationary component, the rotating component, or both. The flange(s) include a base and an external surface extending into the annular gap from the base to a tip. Additionally, the flange(s) defines an inlet port on the external surface fluidly coupled to an outlet port at the tip. As such, the flange(s) forms a seal within the annular gap.
    Type: Application
    Filed: August 13, 2020
    Publication date: April 15, 2021
    Inventors: Krzysztof Tomasz Marugi, Michal Brykalski, Tomasz Kuba Borzecki, Tomasz Kalwak, Piotr Pawel Doerffer, Pawel Zdzislaw Flaszynski, Filip Aleksander Wasilczuk