Kenneth M Lieland

6416278, Jul 9, 2002

Nov 16, 2000

09/713936

James Michael Caldwell - Alexandria KY
Kenneth Morand Lieland - Cincinnati OH
Glenn Herbert Nichols - Mason OH

General Electric Company - Schenectady NY

F01D 900

415191, 4152094, 4152101, 298891, 294023, 294029

A method for repairing a turbine nozzle segment having at least one vane disposed between outer and inner bands includes separating the inner band from the nozzle segment, and joining the inner band to a newly manufactured replacement casting having an outer band and at least one vane. The replacement casting includes a mounting platform formed on one end of the vane and a boss formed on the mounting platform. A collar is joined to the inner band and has a slot formed therein. The boss is then inserted into the slot, and the mounting platform is received in a recess formed in the inner band. Joining is completed by joining the boss to the collar and the mounting platform to the inner band.

6439837, Aug 27, 2002

Jun 27, 2000

09/604127

John Peter Heyward - Loveland OH
Robert Ingram Ackerman - West Chester OH
Richard Hartley Pugh - Maineville OH
Steven Curtiss Warfield - Mason OH
Kenneth Morand Lieland - Cincinnati OH

General Electric Company - Schenectady NY

F04D 2938

415115, 416 97 R

A nozzle vane includes a row of trailing edge apertures and cooperating inboard slots joined in flow communication with a mid-chord cavity. An outboard slot is spaced outwardly from a respective last one of the inboard slots, and outboard of a respective last one of the trailing edge apertures. The outboard slot extends behind a braze joint between the vane and a supporting band and is effective for backside cooling thereof.

62243373, May 1, 2001

Sep 17, 1999

9/399195

Kenneth M. Lieland - Cincinnati OH
Robert W. Harris - Cincinnati OH

General Electric Company - Cincinnati OH

F01D 518

416 97R

A turbine blade squealer tip includes an airfoil shaped tip cap having a squealer tip wall extending radially outwardly from and around the perimeter of the airfoil shaped tip cap to define a radially outwardly open tip cavity. The tip wall has an inboard side facing the interior of the cavity and an outboard side facing away from the cavity and the tip cap has an outer tip side on a bottom of the cavity. Thermal barrier coatings are disposed on the inboard and outboard sides of the squealer tip wall and on the outer tip side of the tip cap. One embodiment provides the tip cap with cooling holes disposed therethrough to flow cooling air into the cavity.