General Electric Company

Jason Paul Hoppa

James Anthony Groeschen

Christopher Edward Wolfe

Kirk Douglas Gallier

Robert Proctor

Robert Paul Czachor

Gilbert Farmer

Jinjie Shi

Marwan Al-Roub

Stanford P Seto

Stephen Gerard Schadewald

A seal assembly to seal a gas turbine hot gas path flow at an interface of a combustor liner and a downstream component, such as a stage one turbine nozzle, in a gas turbine. The seal assembly including a piston ring seal housing, defining a cavity, and a piston ring disposed within the cavity. The piston ring disposed circumferentially about the combustor liner. The piston ring is responsive to a regulated pressure to secure sealing engagement of the piston ring and outer surface of the combustor liner. The seal assembly includes at least one of one or more sectional through-slots, bumps or channel features to provide for a flow therethrough of a high-pressure (P) bypass airflow exiting a compressor to the cavity. The high-pressure (P) bypass airflow exerting a radial force on the piston ring.

Pressure regulated piston seal for a gas turbine combustor liner

A method for assembling a gas turbine engine includes coupling a first structure within the gas turbine engine, wherein the first structure includes a plurality of sockets extending from a radially outer surface of the first structure, and coupling a second structure to the first structure by inserting a radial pin through the second structure and into each respective socket such that the first structure is aligned axially, circumferentially, and with respect to an engine centerline axis extending through the gas turbine engine, where the position of the pins relative to the second structure is adjustable.

Methods and apparatuses for assembling a gas turbine engine

A method for determining the appropriate hole parameters to achieve the desired airflow in a swirler with as-cast air jet holes includes the steps of determining the desired airflow through the holes and selecting a hole angle for the holes. Next, the ratio of the hole exit area to the hole inlet area is calculated based on the desired airflow and the selected hole angle using a regression equation. Then a value is determined for either of the hole exit area or the hole inlet area, and the other area is calculated from the known ratio. Once the hole angle, hole exit area and hole inlet area have been determined, then a swirler can be cast with as-cast holes using these hole parameters.

Method of forming a swirler with as-cast holes

Growing community of inventors

West Chester, OH, United States of America

Jason Paul Hoppa