General Electric Company

Patrick Mohr

Daniel Anthony Nowak

Emilio Fernandez

David A Williams

Michael Douglas Arnett

Graham David Sherlock

Carlos Alberto Collado

Stephen Joseph Balsone

Anil B Rajanna

Seerangan Murugesan

Kamlesh Dewangan

David Williams

A system in a turbine engine for preventing wear on a tip shroud of a turbine blade that includes a pocket formed in a contact surface of the tip shroud and a plug that fits within the pocket and has a durable outer surface. The durable outer surface may include a cobalt-based hardfacing powder. The pocket may be machined out of the contact surface, and the plug may include a plug of predetermined size that fits snugly into the pocket. In some embodiments, the durable outer surface may substantially align with the contact surface after the plug is fitted into the pocket. In other embodiments, the durable outer surface may remain slightly raised from the contact surface after the plug has been fitted into the pocket.

Systems for preventing wear on turbine blade tip shrouds

A tip cap for use in a turbine bucket. The tip cap may include a shield of an oxidant resistant material and a cap positioned within the shield of a high strength material.

Bi-layer tip cap

Blade load path on a gas turbine disk can be diverted to provide a significant disk fatigue life benefit. A plurality of gas turbine blades are attachable to a gas turbine disk, where each of the gas turbine blades includes a blade dovetail engageable in a correspondingly-shaped dovetail slot in the gas turbine disk. In order to reduce gas turbine disk stress, an optimal material removal area is defined according to blade and/or disk geometry to maximize a balance between stress reduction on the gas turbine disk, a useful life of the gas turbine blade, and maintaining or improving the aeromechanical behavior of the gas turbine blade. Removing material from the material removal area effects the maximized balance.

Blade/disk dovetail backcut for blade/disk stress reduction (6FA+E, stage2)

Growing community of inventors

Greer, SC, United States of America

Patrick Mohr