Patents by Inventor Chris J. Niggemeier

Chris J. Niggemeier 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).

  • Patent number: 11226102
    Abstract: A fuel nozzle for a combustor a gas turbine engine includes a flange with a first locator.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: January 18, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Kevin J. Low, Joey Wong, Chris J. Niggemeier
  • Patent number: 11208955
    Abstract: A case for a gas turbine engine includes a case wall and a boss that extends from the case wall. The boss includes a perimeter step.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: December 28, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Chris J. Niggemeier, Lifang Yuan
  • Patent number: 10815891
    Abstract: An inner diffuser case for use in a combustor of a gas turbine engine includes a multiple of struts across an annular flow path between an outer shroud and an inner shroud, at least one of the multiple of struts is an open strut.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: October 27, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Chris J. Niggemeier, Karl D. Blume, John H. Mosley, Andreas Sadil
  • Publication number: 20200011248
    Abstract: A case for a gas turbine engine includes a case wall and a boss that extends from the case wall. The boss includes a perimeter step.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 9, 2020
    Applicant: United Technologies Corporation
    Inventors: Chris J. Niggemeier, Lifang Yuan
  • Patent number: 10458333
    Abstract: A case for a gas turbine engine includes a case wall and a boss that extends from the case wall. The boss includes a perimeter step.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: October 29, 2019
    Assignee: United Technologies Corporation
    Inventors: Chris J. Niggemeier, Lifang Yuan
  • Publication number: 20180209652
    Abstract: A fuel nozzle for a combustor a gas turbine engine includes a flange with a first locator.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 26, 2018
    Inventors: Kevin J. Low, Joey Wong, Chris J. Niggemeier
  • Patent number: 10024238
    Abstract: A cooling system for providing a buffer cooled cooling air to a turbine section of a gas turbine engine is disclosed. The cooling system may comprise a first conduit configured to transmit a cooling air toward the turbine section, a heat exchanger configured to cool a bleed airflow diverted from the first conduit to provide a buffer air, and a bypass conduit configured to direct at least a portion of the buffer air through at least one passageway that bypasses a bearing compartment of the gas turbine engine. The cooling system may further comprise a manifold configured to allow the cooling air exiting the first conduit and the buffer air exiting the bypass conduit to mix and provide the buffer cooled cooling air, and a nozzle assembly configured to deliver the buffer cooled cooling air to the turbine section.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: July 17, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Justin J. Phillips, James D. Hill, William K. Ackermann, Chris J. Niggemeier, Gabriel L. Suciu, Anthony R. Bifulco, Julian Partyka
  • Publication number: 20160356222
    Abstract: A case for a gas turbine engine includes a case wall and a boss that extends from the case wall. The boss includes a perimeter step.
    Type: Application
    Filed: February 19, 2015
    Publication date: December 8, 2016
    Applicant: United Technologies Corporation
    Inventors: Chris J. NIGGEMEIER, Lifang YUAN
  • Publication number: 20160033130
    Abstract: A fuel nozzle for a combustor a gas turbine engine includes a flange with a first locator.
    Type: Application
    Filed: March 13, 2014
    Publication date: February 4, 2016
    Inventors: Kevin J. LOW, Joey WONG, Chris J. NIGGEMEIER
  • Publication number: 20160017811
    Abstract: An accessory gearbox mounting assembly includes a gearbox bracket engaged to a case bracket mounted on an engine case. The case bracket includes a first boss receivable within a first cavity of the engine case and a locator opening through the first boss. The gearbox bracket is mountable to a gearbox case and includes a pin receivable within the locator opening for transferring load from the gearbox bracket to the case bracket.
    Type: Application
    Filed: February 18, 2014
    Publication date: January 21, 2016
    Inventors: Octavio Martin, Chris J. Niggemeier
  • Publication number: 20150285147
    Abstract: A cooling system for providing a buffer cooled cooling air to a turbine section of a gas turbine engine is disclosed. The cooling system may comprise a first conduit configured to transmit a cooling air toward the turbine section, a heat exchanger configured to cool a bleed airflow diverted from the first conduit to provide a buffer air, and a bypass conduit configured to direct at least a portion of the buffer air through at least one passageway that bypasses a bearing compartment of the gas turbine engine. The cooling system may further comprise a manifold configured to allow the cooling air exiting the first conduit and the buffer air exiting the bypass conduit to mix and provide the buffer cooled cooling air, and a nozzle assembly configured to deliver the buffer cooled cooling air to the turbine section.
    Type: Application
    Filed: January 12, 2015
    Publication date: October 8, 2015
    Inventors: Justin J. Phillips, James D. Hill, William K. Ackermann, Chris J. Niggemeier, Gabriel L. Suciu, Anthony R. Bifulco, Julian Partyka
  • Publication number: 20150252729
    Abstract: An inner diffuser case for use in a combustor of a gas turbine engine includes a multiple of struts across an annular flow path between an outer shroud and an inner shroud, at least one of the multiple of struts is an open strut.
    Type: Application
    Filed: September 27, 2013
    Publication date: September 10, 2015
    Inventors: Chris J. Niggemeier, Karl D. Blume, John H. Mosley, Andreas Sadil
  • Publication number: 20150240662
    Abstract: A case for a gas turbine engine includes an integrated HPC Diffuser case operable to contain a combustor section and a portion of a High Pressure Compressor.
    Type: Application
    Filed: September 30, 2013
    Publication date: August 27, 2015
    Inventors: Chris J. Niggemeier, Karl D. Blume
  • Patent number: 8561501
    Abstract: A bracket for attaching a gearbox to an engine casing has a first portion having a first array of openings for receiving attachments therethrough, the first portion having, on a backside thereof, a first rail for engaging a slot in the engine casing, and a second portion having a second array of openings for receiving attachments therethrough. A hookup for attaching to the gearbox attaches to and in between the first portion and the second portion for diminishing effects of radial rotation between the casing and the gearbox.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: October 22, 2013
    Assignee: United Technologies Corporation
    Inventors: Chris J. Niggemeier, Harvey C. Lee, Zhijun Zheng
  • Publication number: 20120304811
    Abstract: A bracket for attaching a gearbox to an engine casing has a first portion having a first array of openings for receiving attachments therethrough, the first portion having, on a backside thereof, a first rail for engaging a slot in the engine casing, and a second portion having a second array of openings for receiving attachments therethrough. A hookup for attaching to the gearbox attaches to and in between the first portion and the second portion for diminishing effects of radial rotation between the casing and the gearbox.
    Type: Application
    Filed: May 31, 2011
    Publication date: December 6, 2012
    Inventors: Chris J. Niggemeier, Harvey C. Lee, Zhijun Zheng