General Electric Company

Joseph Steven Bubnick

Robert Alan Frederick

Craig Miller Kuhne

Robert Joseph Bartz

Kevin Robert Feldmann

Craig William Higgins

Daniel Edward Demers

Todd Stephen Heffron

Scott Matthew Bush

Sean Michael Molleson

Alisha Vachhani Kalb

Alisha Vachhani

Embodiments of hot streak alignment for gas turbine durability include structures and methods to align hot streaks with the leading edges of aligned first stage nozzle vanes in order to improve mixing of the hot streaks with cooling air at a stator nozzle of a first stage turbine and reduce usage of cooling air at first stage non-aligned stator nozzle vanes disposed adjacent to the aligned stator vanes.

Hot streak alignment for gas turbine durability

A durable nozzle vane includes a leading edge where hot combustion gas impinges on the vane, a pressure side extending from the leading edge to a trailing edge and a suction side extending from the leading edge to the trailing edge, a blunt region along the suction side between the leading edge and a high curvature region, the blunt region having small curvature in the length between the leading edge and the high curvature region allowing for at least two rows of cooling apertures.

Durable turbine vane

A turbine blade includes an airfoil and integral platform. The platform is biformally contoured in elevation to include bilaterally disposed elevated ridges and depressed troughs on opposite sides of the airfoil.

Biformal platform turbine blade

A turbine blade includes an airfoil having first and second tip ribs extending along the opposite pressure and suction sides thereof. A tip baffle bifurcates the airfoil tip into two pockets, with a first pocket being laterally open at its aft end to recover leakage flow, and a second pocket being laterally closed.

Recovery tip turbine blade

Growing community of inventors

Cincinnati, OH, United States of America

Joseph Steven Bubnick