Patents by Inventor Daniel L. Gysling

Daniel L. Gysling 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).

  • Publication number: 20210293596
    Abstract: An apparatus and method of decreasing vibrational sensitivity of strain based measurements of fluid flow parameters for a fluid flow in a conduit is provided. The method includes using at least one vibrational sensor to sense a conduit to determine vibrational characteristics of the conduit, determining a predominant elastic axis using the measured vibrational characteristics, and securing a strain sensor array to an outer surface of the conduit, the strain sensor array having a plurality of strain sensors disposed at different axial positions of the conduit, the strain sensor array secured to the outer surface of the conduit at a position so that the strain sensor array is oriented substantially symmetric to the determined predominant elastic axis.
    Type: Application
    Filed: March 20, 2020
    Publication date: September 23, 2021
    Inventors: Daniel L. Gysling, Gabriel Dragnea, Siddesh Sridhar
  • Patent number: 11105707
    Abstract: A system is provided for testing a component. This system includes a support structure, an excitation system and a sensor system. The support structure is configured to support the component. The excitation system includes a plurality of excitation devices arranged in an array. The plurality of excitation devices at least include a first excitation device, a second excitation device and a third excitation device. The excitation system is configured to respectively control each of the plurality of excitation devices to excite a vibratory response in the component. The sensor system is configured to output data indicative of the vibratory response.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: August 31, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Daniel L. Gysling, Joseph V. Paturzo, Richard A. Lomenzo, Allison Nicklous, Zaffir A. Chaudhry
  • Patent number: 10995861
    Abstract: A hydrostatic seal configured to be disposed between relatively rotatable components is provided. The seal includes a seal housing. The seal also includes a shoe extending axially from a forward end to an aft end to define an axial length, the shoe cantilevered to the seal housing at one of the forward end and the aft end, the shoe free at the other end.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: May 4, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Brian F. Hilbert, Daniel L. Gysling, Eric A. Grover
  • Patent number: 10961858
    Abstract: A hydrostatic seal configured to be disposed between relatively rotatable components includes a base. The seal also includes a seal housing. The seal further includes a shoe operatively coupled to the base and extending axially from a forward end to an aft end. The seal yet further includes a plurality of teeth extending radially from a sealing surface of the shoe, one of the teeth being a longest tooth that extends furthest radially from the sealing surface, the axial distance from the forward end of the shoe to the longest tooth being greater than a radial distance from a radial tooth tip to the sealing surface.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: March 30, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Eric A. Grover, Brian F. Hilbert, Daniel L. Gysling, Christopher W. Robak
  • Publication number: 20210054880
    Abstract: A machine has a first member; a second member; a third member; a bearing having an inner race mounted to the second member and an outer race mounted to the third member; a damper chamber between the first member and the third member; a fluid outlet in the first member to the damper chamber; a fluid supply flowpath to the fluid outlet; and an unvented chamber open to and locally above the fluid supply flowpath.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 25, 2021
    Inventors: Daniel L. Gysling, Gregory E. Reinhardt, Daniel A. Szkrybalo
  • Publication number: 20210054938
    Abstract: An assembly is provided for rotational equipment. This assembly includes a stationary structure, a rotating structure rotatable about an axial centerline, and a non-contact seal assembly. The non-contact seal assembly is configured to substantially seal a gap between the stationary structure and the rotating structure. The non-contact seal assembly includes a seal shoe configured to sealingly engage the rotating structure axially along the axial centerline.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 25, 2021
    Inventors: Brian F. Hilbert, Mani Sadeghi, Daniel L. Gysling, Kerwin R. Low
  • Publication number: 20210048324
    Abstract: A system for measuring a velocity or volumetric fluid flow rate of a fluid flow passing within a pipe includes a SONAR flow meter configured to determine a measured velocity or volumetric rate of a fluid flow passing within a pipe. The system further includes a CFD analysis device configured to produce a simulated velocity or volumetric rate of the fluid flow passing within the pipe. The system further includes a processing unit in communication with the CFD analysis device and the SONAR flow meter. The processing unit is configured to produce at least one error function based on the measured velocity or volumetric fluid flow rate and the simulated velocity or volumetric fluid flow rate, and is configured to determine an adjusted velocity or volumetric fluid flow rate using the at least one error function and the measured velocity or volumetric fluid flow rate.
    Type: Application
    Filed: August 12, 2020
    Publication date: February 18, 2021
    Inventor: Daniel L. Gysling
  • Patent number: 10920615
    Abstract: A fluid damping structure is provided that includes an inner and outer annular elements, first and second ring seals, first and second outer annular seals. The inner annular element has an outer radial surface and a plurality of annular grooves disposed in the outer radial surface. The outer annular element has an inner radial surface. A damping chamber is defined by the inner and outer annular elements, and the first and second inner ring seal. A first lateral chamber is disposed on a first axial side of the damping chamber. A second lateral chamber is disposed on a second axial side of the damping chamber. A plurality of fluid passages are disposed in at least one of the inner annular element or the inner ring seals. The fluid damping structure is configurable in an open configuration and a closed configuration.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: February 16, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Ulf J. Jonsson, Daniel L. Gysling
  • Patent number: 10900379
    Abstract: An actively controlled squeeze film damper system comprises a housing defining an annulus receiving a damping fluid during operation, a lubricant source supplying damping fluid to the annulus, and a sensor assembly for measuring a parameter indicative of a compressibility of the damping fluid. A control device adjusts the compressibility of the damping fluid within a predefined range.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: January 26, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Daniel L. Gysling, Philip Andrew Varney
  • Publication number: 20210010841
    Abstract: An apparatus for measuring a parameter of a fluid flow passing within a pipe is provided. The apparatus includes a sensing device and a processing unit. The sensing device has a sensor array that includes at least one first macro fiber composite (MFC) strain sensor disposed at a first axial position, and at least one second MFC strain sensor disposed at a second axial position. The first axial position and the second axial position are spaced apart from one another. The at least one first MFC strain sensor and the at least one second MFC strain sensor are both configured to produce signals representative of pressure variations of the fluid flow passing within the pipe. The processing unit is configured to receive the signals from the sensor array and measure one or more fluid flow parameters based on the signals.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 14, 2021
    Inventors: Carl J. Gandarillas, Mark E. Sasso, Changjiu Dang, Daniel L. Gysling
  • Publication number: 20200362714
    Abstract: A hydrostatic seal configured to be disposed between relatively rotatable components includes a seal carrier. The seal also includes a beam extending axially from a forward end to an aft end, the beam cantilevered to the seal carrier at one of the forward end and the aft end, the beam free at the other end. The seal further includes a brush seal operatively coupled to the seal carrier and in contact with the beam.
    Type: Application
    Filed: May 13, 2019
    Publication date: November 19, 2020
    Inventors: Brian F. Hilbert, Daniel L. Gysling, John P. Virtue, Eric A. Grover
  • Patent number: 10823192
    Abstract: A gas turbine engine comprises a fan rotor having fan blades received within an outer nacelle. The fan blades are provided with at least a first type having a first natural frequency, and a second type having a second natural frequency. The fan rotor has a first mount structure intended for the first type and a distinct second mount structure intended for the second type. The first type of fan blade fits into the first mount structure intended for the first type, but there is a first obstruction preventing the first type of fan blade from being placed into the second mount structure intended for the second type. The second type of fan blade fits into the second mount structure intended for the second type, but there is a second obstruction preventing the second type of fan blade from being placed into the first mount structure intended for the first type.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: November 3, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Frederick M. Schwarz, Daniel L. Gysling
  • Patent number: 10794387
    Abstract: An aeromechanical identification system for turbomachine includes at least one actuator mounted on a stationary structure to excite rotatable airfoils. At least one sensor is mounted proximate the airfoils for measuring a response of the airfoils responsive to excitation from the at least one actuator. A controller is configured to determine a damping characteristic of an aeromechanical mode of the rotating airfoils based on the excitation and the response. A gas turbine engine and a method of determining a flutter boundary for an airfoil of a turbomachine are also disclosed.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: October 6, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Andrew Consiglio, Daniel L. Gysling
  • Patent number: 10775269
    Abstract: A system and method for blade health inspection is provided. The system may include a health monitoring processor, an excitation actuator, and a health monitoring sensor. The excitation actuator may pulse a force against an engine blade to cause non-integral vibratory excitations in engine blades. The health monitoring sensor may measure the vibratory excitations. The health monitoring processor may analyze the vibratory excitations to determine the health of the engine blade.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: September 15, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Daniel L. Gysling, Gregory S. Hagen
  • Publication number: 20200256210
    Abstract: An actively controlled squeeze film damper system comprises a housing defining an annulus receiving a damping fluid during operation, a lubricant source supplying damping fluid to the annulus, and a sensor assembly for measuring a parameter indicative of a compressibility of the damping fluid. A control device adjusts the compressibility of the damping fluid within a predefined range.
    Type: Application
    Filed: February 7, 2019
    Publication date: August 13, 2020
    Inventors: Daniel L. Gysling, Philip Andrew Varney
  • Publication number: 20200232390
    Abstract: A section for a gas turbine engine includes a rotating structure, a stationary structure, and a flow guide assembly arranged generally between the rotating structure and the stationary structure. A flow path is defined between the flow guide assembly and one of the rotating structure and the stationary structure. The flow guide assembly includes a plurality of apertures configured to disrupt acoustic waves of air in the flow path. A seal is configured to establish a sealing relationship between the rotating structure and the stationary structure, and wherein an inlet to the flow path is adjacent the seal. A gas turbine engine and a method of disrupting acoustic waves in a flow path of a gas turbine engine are also disclosed.
    Type: Application
    Filed: January 18, 2019
    Publication date: July 23, 2020
    Inventors: Ramons A. Reba, Bruce L. Morin, Daniel L. Gysling, Carson A. Roy Thill, Jose R. Paulino, JinQuan Xu, Stephen A. Morford
  • Publication number: 20200217421
    Abstract: A hydrostatic seal configured to be disposed between relatively rotatable components is provided. The seal includes a seal housing.
    Type: Application
    Filed: January 3, 2019
    Publication date: July 9, 2020
    Inventors: Brian F. Hilbert, Daniel L. Gysling, Eric A. Grover
  • Publication number: 20200217215
    Abstract: A hydrostatic seal configured to be disposed between relatively rotatable components includes a base. The seal also includes a seal housing. The seal further includes a shoe operatively coupled to the base and extending axially from a forward end to an aft end. The seal yet further includes a plurality of teeth extending radially from a sealing surface of the shoe, one of the teeth being a longest tooth that extends furthest radially from the sealing surface, the axial distance from the forward end of the shoe to the longest tooth being greater than a radial distance from a radial tooth tip to the sealing surface.
    Type: Application
    Filed: January 4, 2019
    Publication date: July 9, 2020
    Inventors: Eric A. Grover, Brian F. Hilbert, Daniel L. Gysling, Christopher W. Robak
  • Publication number: 20200217420
    Abstract: A hydrostatic seal configured to be disposed between relatively rotatable components is provided. The seal includes a seal housing. The seal also includes a shoe extending axially from a forward end to an aft end to define an axial length, the shoe cantilevered to the seal housing at one of the forward end and the aft end, the shoe free at the other end.
    Type: Application
    Filed: January 3, 2019
    Publication date: July 9, 2020
    Inventors: Brian F. Hilbert, Daniel L. Gysling, Eric A. Grover
  • Publication number: 20200209102
    Abstract: A system is provided for testing a component. This system includes a support structure, an excitation system and a sensor system. The support structure is configured to support the component. The excitation system includes a plurality of excitation devices arranged in an array. The plurality of excitation devices at least include a first excitation device, a second excitation device and a third excitation device. The excitation system is configured to respectively control each of the plurality of excitation devices to excite a vibratory response in the component. The sensor system is configured to output data indicative of the vibratory response.
    Type: Application
    Filed: February 24, 2020
    Publication date: July 2, 2020
    Inventors: Daniel L. Gysling, Joseph V. Paturzo, Richard A. Lomenzo, Allison Nicklous