General Electric Company

David Walter Parry

Emad Andarawis Andarawis

Samhita Dasgupta

Mahadevan Balasubramaniam

William Lee Herron

David So Keung Chan

John Harry Down

Wayne Charles Hasz

David Mulford Shaddock

Zhiyuan Ren

David Richard Esler

Cheryl Lynn Herron, Legal Representative

David So Chan

Christopher Charles Glynn

Bangalore Aswatha Nagaraj

Stanley Kevin Widener

Alfred Albert Mancini

John Michael Koshoffer

Alan Majors Walker

John A Kastl

Thomas John Tomlinson

Eric John Kress

D Keith Patrick

Joseph F Savelli

John Creighton Schilling

Chirstopher Charles Glynn

A fairing assembly is provided which is located between a frame hub and an engine casing. The assembly provides for use of a metallic structure in combination with a light weight low alpha material in order to improve engine efficiency and performance. Relative growth between the dissimilar materials is compensated for by a flexible bracket which provides biasing force on one of the assembly components in a cold engine condition as well as allowing for growth at the high temperature operating conditions of the engine.

Turbine center frame fairing assembly

A sensor system for measuring a clearance parameter between a stationary component and a rotating component of a rotating machine is provided. The system includes a clearance sensor to output a clearance measurement signal. A sensor memory is attached to the sensor for storing a first sensor information. A second sensor information is stored in a electronics interface memory. The first and the second sensor information are read and the clearance sensor is matched with a respective plurality of calibration data by an electronic interface based on the first and the second sensor information.

Automated sensor specific calibration through sensor parameter download

A method of detecting rubs during operation of a turbomachine comprising at least one rotating object having a tip and a shelf is provided. The method includes generating signals representative of a sensed parameter and processing the signals to generate height versus time data for the tip. The height of the tip corresponds to the distance between the tip and the shelf. The method further includes monitoring the height versus time data, in order to determine whether a change in the height data exceeds a threshold value, and detecting a rub of the rotating object(s) on a second object, when the change in the height data exceeds the threshold value. A rub detection system for a turbomachine and a turbine engine system with rub detection are also provided.

System and method for turbine engine clearance control with rub detection

A processing system for clearance estimation in a rotating machine includes one or more sensors and one or more digital signal processors for calculating the estimated clearance. The processing system may include techniques for obtaining real-time clearance estimates and techniques for obtaining averaged clearance estimates. Aspects of the processing system may also include a method of switching between real-time clearance estimates and averaged clearance estimates depending on the operating conditions of the rotating machine. Other aspects of the processing system include the use of two digital signal processors: a first digital signal processor configured to receive signals from a clearance sensor and perform a first set of high speed processing tasks, and a second digital signal processor configured to receive signals from the first digital signal processor and perform a second set of lower speed processing tasks.

System and method for clearance estimation between two objects

A protected article includes a substrate having a surface, and a protective system overlying and contacting a first portion of the surface of the substrate. The protective system has a nickel-base superalloy bond coat, an aluminide layer overlying and contacting the bond coat, and a dense vertically microcracked ceramic thermal barrier coating overlying and contacting the aluminide layer.

Substrate protected by superalloy bond coat system and microcracked thermal barrier coating

A double annular combustor having concentrically disposed inner and outer annular combustors is provided with inner and outer domes. A one-piece cowl is provided upstream of the inner and outer domes in order to form a high pressure region. The one-piece cowl has an inner annular portion, an outer annular portion, and a radial middle portion connecting the inner and outer annular portions. The inner and outer annular portions include scalloped areas therein to facilitate insertion and removal of fuel tubes and nozzles. The cowl middle portion includes a shield to isolate the scalloped areas and the fuel tube from the high pressure region, thereby preventing leakage of air flow and consequential pressure loss from the high pressure region.

One-piece cowl for a double annular combustor

A combustor dome assembly is provided with a single continuous annular dome plate having at least one circumferential row of spaced openings therethrough, a swirl cup assembly attached to each of the dome plate openings, and inner and outer cowls connected to the radially inner and outer ends of the dome plate. A ferrule located immediately upstream of the swirl cup assembly acts as an interface between a fuel nozzle and the swirl cup assembly. An integral cowl plate/ferrule retainer is located immediately upstream of and connected to the swirl cup assembly, where the ferrule retainer portion retains the ferrule while allowing it to float radially therewithin and the cowl plate portion includes flanges which extend beyond the outer diameter of the swirl cup to provide blockage in addition to that provided by the inner and outer cowls.

Integral combustor cowl plate/ferrule retainer

A double dome combustor for a gas turbine engine includes first and second domes joined to outer and inner liners. Two radially spaced apart rows of air swirlers are fixedly mounted to the first and second domes, respectively, with each of the swirlers including a radially extending strut, with pairs of struts being fixedly joined together for providing rigidity of the first and second domes for accommodating pressure loading thereon.

Stiffened double dome combustor

Growing community of inventors

Cincinnati, OH, United States of America

David Walter Parry