Patents by Inventor Piotr Jerzy STECKOWICZ

Piotr Jerzy STECKOWICZ 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).

  • Repair of gas turbine diaphragm
    Patent number: 11813708
    Abstract: A turbomachine diaphragm including a sealing section having a first end portion that extends to a second end portion through an intermediate portion; and at least one rail member including a first end section that extends from the first end portion of the sealing section to a second end section through an intermediate section having an inner surface section and an outer surface section, the second end section including multiple weld passes disposed on opposed sides of the second end section for mitigation of thermal tensions on the diaphragm, the multiple weld passes forming a cladding welded to the diaphragm, wherein the cladding includes a stainless austenitic steel.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: November 14, 2023
    Assignee: General Electric Company
    Inventors: Andrzej Marcin Ostrowski, Krzysztof Dynak, Michal Kowalczyk, Marek Miekus, Piotr Jerzy Steckowicz, Tomasz Michal Szewczyk
  • REPAIR OF GAS TURBINE DIAPHRAGM
    Publication number: 20210402527
    Abstract: A turbomachine diaphragm including a sealing section having a first end portion that extends to a second end portion through an intermediate portion; and at least one rail member including a first end section that extends from the first end portion of the sealing section to a second end section through an intermediate section having an inner surface section and an outer surface section, the second end section including multiple weld passes disposed on opposed sides of the second end section for mitigation of thermal tensions on the diaphragm, the multiple weld passes forming a cladding welded to the diaphragm, wherein the cladding includes a stainless austenitic steel.
    Type: Application
    Filed: September 15, 2021
    Publication date: December 30, 2021
    Inventors: Andrzej Marcin OSTROWSKI, Krzysztof DYNAK, Michal KOWALCZYK, Marek MIEKUS, Piotr Jerzy STECKOWICZ, Tomasz Michal SZEWCZYK
  • Repair of gas turbine diaphragm
    Patent number: 11148235
    Abstract: A method of refurbishing worn diaphragm rails for turbo machines. This method comprises machining the worn part of the diaphragm rails such that a clean and geometrically exact machined surface is achieved. Welding one or more layers on these machined surfaces builds up a cladding that overtops the nominal dimensions of new diaphragm. The method further comprises machining the cladding such that it has the nominal dimensions of a new diaphragm.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: October 19, 2021
    Assignee: General Electric Company
    Inventors: Andrzej Marcin Ostrowski, Krzysztof Dynak, Michal Kowalczyk, Marek Miekus, Piotr Jerzy Steckowicz, Tomasz Michal Szewczyk
  • REPAIR OF GAS TURBINE DIAPHRAGM
    Publication number: 20200016701
    Abstract: A method of refurbishing worn diaphragm rails for turbo machines. This method comprises machining the worn part of the diaphragm rails such that a clean and geometrically exact machined surface is achieved. Welding one or more layers on these machined surfaces builds up a cladding that overtops the nominal dimensions of new diaphragm. The method further comprises machining the cladding such that it has the nominal dimensions of a new diaphragm.
    Type: Application
    Filed: August 13, 2019
    Publication date: January 16, 2020
    Inventors: Andrzej Marcin OSTROWSKI, Krzysztof DYNAK, Michal KOWALCZYK, Marek MIEKUS, Piotr Jerzy STECKOWICZ, Tomasz Michal SZEWCZYK