Siemens Energy, Inc.

Siemens Aktiengesellschaft

Charalambos Polyzopoulos

Richard L Thackway

Stephen A Ramier

Vinayak V Barve

James M Hurney

Khalil Farid Abou-Jaoude

Daniel W Garan

Kevin J Spence

Miguel Bascones

Joseph Scott Markovitz

Abhijeet Tiwary

Erick J Deane

David P Holzapfel

Mohit Gupta

Blake R Cotten

Anand A Kulkarni

Matthew H Lang

Jeffrey A Kain

Leonard J Meyer

James A Chonody

Michael C Escandon

Vaidyanathan Krishnan

Urmi B Dave

Robert Hudson

Erica Holden

David Myers

Ryan S Yamane

A gas turbine sealing interface to seal a gap between a transition duct and a turbine section component is provided. The transition duct includes an outlet exit frame including at least one fastener hole. The turbine section component includes a first stage vane structure including an upstream lip. A seal couples the outlet exit frame to the first stage turbine vane structure. An L-shaped rail including a flat portion and a lipped portion disposed perpendicularly to the flat portion. The seal is secured to the outlet exit frame via the L-shaped rail. An upstream portion of the seal includes a U-shaped cross section forming a first groove. A downstream portion of the seal comprises a groove which engages the upstream lip of the first stage turbine vane structure. A gas turbine engine including a radially inner sealing interface and a radially outer sealing interface is also provided.

Seal interface between a transition duct and a stage one vane structure

A support housing for use in distributing fuel in a gas turbine engine includes a main body defining an inlet aperture, a plurality of outlet apertures, and a substantially planar mounting surface. A first fuel channel has a wall that defines a first flow space and a support member extends across the first flow space and has a long axis oriented at an oblique angle with respect to the mounting surface.

Hybrid manufacturing of a support housing

Heat shield for a gas turbine fuel nozzle

An improved combustion section for a gas turbine engine is disclosed. A fuel nozzle includes new features which provide improved injection patterns of oil fuel and cooling water, resulting in better control of combustion gas temperature and NOx emissions, and eliminated impingement of cooling water on walls of the combustor. A new combustor includes a plate-fin design which provides improved cooling, while the combustor also makes more efficient use of available cooling air and has an improved component life. A new transition component has a smoother shape which reduces stagnation of combustion gas flow and impingement of combustion gas on transition component walls, improved materials and localized thickness increases for better durability, and improved cooling features for more efficient usage of cooling air.

W501D5/D5A DF42 combustion system

A static wear seal for an interface between two components is provided. The static wear seal includes a body portion including a receptacle configured to receive an insert portion. The insert portion is disposed within the receptacle. The receptacle is formed within the body portion at a surface of the body portion known to wear due to contact with a turbine component and includes a locking means such that the insert portion is retained within the receptacle. The insert portion is configured to receive wear due to contact with the turbine component. A transition seal assembly for a gas turbine engine including at least two seals wherein one of the two seals is a static wear seal is provided as well as a method to protect a wear surface of a static wear seal sealing an interface between the turbine components.

Static wear seals for a combustor transition

A fuel manifold () configured to form a base support structure () to support a plurality of fuel nozzles () including a pilot fuel nozzle is provided. A restraining element () is arranged in the base support structure () to support the pilot fuel nozzle. Restraining element () is integrally formed with the base support structure. The restraining element being integrally formed with the base support structure is effective to arrange for an incremental thickness () in a portion () of a wall () interposed between the inner diameter () of restraining element () and respective proximate edges () of a number of pilot bolt holes () disposed around the restraining element.

Fuel manifold with integrally formed retainer for a pilot nozzle in a combustor of a gas turbine engine

A cross-flame duct for connecting adjacent combustors together in a gas turbine to guard against flameout conditions within the combustors, whereby the cross-flame duct includes first and second ducts forming a slip joint to prevent stress from developing within the cross-flame duct is disclosed. The cross-flame duct remains flexible during turbine operation due to the slip joint, thereby preventing damaging thermal and mechanical stresses from developing within the cross-flame duct and enhancing the useful life of the cross-flame duct and associated components. The first and second ducts include cooling chambers positioned between outer sleeves and inner housings and maintained with one or more standoffs to reduce thermal stress and gradients or prevent material loss due to overheating or burning. The cooling chambers are supplied with cooling fluids via one or more fluid ports extending through the outer sleeves enabling air to flow through the cooling chambers and into the combustors.

Cross ignition flame duct

A casting method and cast manifold are provided. The method allows configuring conduits, such as conduits in a fuel feed boss and/or a base rocket, which are part of the manifold for removing a ceramic core from the cast without forming extraneous holes in the body of the manifold. Absence of such extraneous holes in turn allows eliminating sealing plugs and welds, which otherwise would be needed for sealing the extraneous holes.

Casting method and manifold cast with conduits effective for removing a core from the cast without forming extraneous holes in the body of the manifold

Can-annular burners for gas turbine engines with flow conditioners having locally varying, asymmetrical patterns of circumferential perforations, to promote uniform fuel-air mixture among all premixers in the burner basket. Any one or more of the perforation pattern, pattern density, perforation profiles and perforation cross sectional area is locally varied to alter circumferential airflow into the burner basket, which in turn mitigates non-uniform thru-flow variations across the burner's air inlet plane. In some embodiments, the flow conditioner asymmetric perforation patterns are tailored for individual burner locations within the engine's combustor section annular ring, which mitigates non-uniform thru-flow variation among different respective burners in the combustor section annular ring. Thru-flow uniformity within each burner and among all the combustor section burners promotes uniform engine combustion.

Can-annular combustor burner with non-uniform airflow mitigation flow conditioner

A combustor basket assembly for a gas turbine engine that includes a combustor basket having a basket liner including an input end and an output end. An integrated exit cone and splash plate member is affixed to the output end of the basket liner and includes a base portion, an exit cone portion and a splash plate portion. The base portion includes an annular cooling channel that receives a cooling air flow and the exit cone portion and the splash plate portion each include an array of cooling feed holes in fluid communication with the cooling channel. The spacing between the feed holes and the size of the feed holes can be optimized to provide more cooling for hotter regions.

D5/D5A DF-42 integrated exit cone and splash plate

A multi-functional fuel nozzle () for a combustion turbine engine is provided. An annular fuel-injecting lance () may include a first fluid circuit () and a second fluid circuit (). One of the first and second fluid circuits during a liquid fuel operating mode of the combustion turbine engine may convey a liquid fuel. The other of the first and second fluid circuits may convey a selectable non-fuel fluid. An atomizer () is disposed at the downstream end of the lance. The atomizer may have a first ejection orifice () responsive to the first fluid circuit to form a first atomized ejection cone (), and a second ejection orifice () responsive to the second fluid circuit to form a second atomized ejection cone (). The first and second ejection cones () formed with the atomizer may be concentric cones that intersect with one another over a predefined angular range.

Multi-functional fuel nozzle with a dual-orifice atomizer

A multi-functional fuel nozzle () for a combustion turbine engine is provided. A nozzle cap () may be disposed at a downstream end of the nozzle. A heat shield () is mounted onto the nozzle cap. A plurality of cooling channels () is arranged between a forward face of the nozzle cap and a corresponding back side of the heat shield. The plurality of cooling channels may be arranged to discharge cooling air over a forward face of an atomizer assembly in the multi-functional fuel nozzle.

Multi-functional fuel nozzle with a heat shield

A nozzle cap () is disposed at a downstream end of the nozzle. The nozzle cap includes a bore arranged to accommodate a downstream portion of a fluid-injecting lance that extends along a longitudinal axis () of the nozzle. The downstream portion of the fluid-injecting lance includes a centrally-located atomizer () to form a first atomized ejection cone. An array of atomizers () is disposed in the nozzle cap. The array of atomizers is circumferentially disposed about the longitudinal axis of the lance. The array of atomizers may be positioned radially outwardly relative to the centrally-located atomizer to form an array of respective second atomized ejection cones.

Multi-functional fuel nozzle with an atomizer array

An adjustable blade root spring device for turbine blade fixation in turbomachinery. The device is designed to be placed in a space in a rotor disk cavity adjacent to a tip of a blade root, where the device applies a radial outward force on the turbine blade to fix the blade position in the rotor disk. The device includes a wave spring with integral end blocks which is compressed by a bolt and a coil spring. When the wave spring is compressed in length, it increases in height and makes contact with the rotor disk and the turbine blade. The force of the wave spring on the turbine blade can be adjusted via the bolt, and the coil spring provides an increased compliance range. The body of the device has an oblong cross-sectional shape, thereby preventing rotation of the device in the space between the blade and the disk.

Variable dual spring blade root support for gas turbines

A sealing arrangement for sealing between adjacent first and second exit frames each associated with a transition piece of a turbine. The arrangement includes a transition side seal having bristles that extend from a rail wherein the rail is bendable in a plurality of directions to accommodate bowing of an associated exit frame. The first exit frame includes a rail slot for receiving the rail. The second exit frame includes a bristle slot for receiving the bristles to form a seal between the first and second exit frames, wherein the bristle slot includes a bottom section. The bristles are separated from the bottom section by a bristle gap that is sized to accommodate movement of at least one transition piece to maintain a seal between the first and second exit frames or avoid damage to the bristles.

Growing community of inventors

Orlando, FL, United States of America

Charalambos Polyzopoulos