General Electric Company

Luke John Ammann

Liming Xu

Stephen Paul Wassynger

Gunnar Leif Siden

Kevin Leon Bruce

Melbourne James Myers

Richard Ryan Pilson

Randall Richard Good

James William Vehr

Ariel Caesar Prepena Jacala

Camilo Andres Sampayo

Felipe Roman-Morales

Wei Ning

Pilson Richard

A retention system for a plurality of turbine buckets located in respective mating slots in a turbine rotor wheel includes a plurality of first circumferentially-oriented retention slots formed in outer peripheral portions of the turbine wheel; a plurality of second circumferentially-oriented retention slots formed in wheel mounting portions of said buckets, the first and second circumferentially-oriented retention slots aligned to form an annular lockwire retention slot; and a lockwire located within the annular lockwire retention slot. A first surface feature on one or both of the turbine rotor wheel and one or more of said plurality of turbine buckets is adapted to engage a second surface feature on the lockwire for preventing rotation of the lockwire beyond predetermined limits.

Turbine bucket lockwire rotation prevention

Embodiments of the present application can provide systems and methods for mode shape identification of turbine buckets. According to one embodiment, a system can be provided. The system can include a turbine bucket having numerous trigger patterns disposed at a distal end of the turbine bucket. A sensor is disposed adjacent to the distal end of the turbine bucket for detecting the trigger patterns. The trigger patterns are patterned to identify at least one mode shape of the turbine bucket.

Systems and methods for mode shape identification

A system, in one embodiment, includes a turbine blade having a radial blade tip. The system further includes a trailing edge trench that is formed in the radial blade tip and which extends towards a trailing edge of the turbine blade. The trailing edge trench further includes a first set of cooling passages, each of which includes a first slot formed along a first sidewall of the trailing edge trench, whereby the slot is coupled to a first respective hole extending through a floor of the trailing edge trench.

System for cooling turbine blades

A turbine bucket is provided and includes a shank defining a cavity therein, which is connectable with a rotor such that wheelspace air having an initial pressure is permitted to flow into the cavity and a platform coupled to the shank and defining a cooling hole therein, the shank and the platform each further defining the cavity and the cooling hole, respectively, as being fluidly communicative with one another, such that the wheelspace air permitted to flow into the cavity is deliverable from the cavity and through the cooling hole at a second pressure greater than the initial pressure.

Shank cavity and cooling hole

In one embodiment, a turbine blade platform may be disposed between two turbine blades. The platform may include a first exterior side configured to interface with a first turbine blade. The platform also may include a second exterior side disposed generally opposite the first exterior side and configured to interface with a second turbine blade.

Non-integral turbine blade platforms and systems

In one embodiment, a system includes a turbine engine that includes a turbine stage including a turbine rotor having multiple blades disposed in a first annular arrangement. The turbine engine also includes multiple cover plates disposed in a second annular arrangement along interfaces between the turbine rotor and the blades. The turbine engine further includes multiple lugs coupled to the turbine stage and a first ring coupled to the lugs to hold the cover plates to the turbine stage.

Apparatus for bucket cover plate retention

A cover member defining a rotor chamber adjacent to a rotor wheel that supports a rotating blade in a turbine includes a first aperture for introducing a cooling gas stream into the rotor chamber, and a second aperture positioned in a radially outward portion of the cover member for allowing a portion of the cooling gas stream to exit the rotor chamber. The portion of the cooling gas stream exiting the rotor chamber carries dirt particles to purge the rotor chamber.

Rotor chamber cover member having aperture for dirt separation and related turbine

In one embodiment, a system includes a turbine engine that includes a rotor including multiple blades. The turbine engine also includes a shroud disposed about the blades. The shroud includes multiple segments engaged with one another via mating teeth. The mating teeth are oriented in an axial direction along a longitudinal axis of the turbine engine.

Turbine engine shroud ring

Disclosed is a turbine blade or vane including a blade or vane body including a leading edge and a trailing edge, a plurality of cooling openings disposed along the trailing edge, a first width of the trailing edge, the first width being disposed across the cooling openings, and a second width of the trailing edge the second width being disposed between the cooling openings, wherein the second width is smaller than the first width.

Growing community of inventors

Simpsonville, SC, United States of America

Luke John Ammann