Patent ID: 9651261
Date: 2017-05-16
CPC Classifications: B29C,B33Y,F23R,G01B

Claim:
1. An igniter port alignment verification tool for a combustion turbine combustor basket of the type having: outer and inner combustor shrouds nested along a combustor centerline axis; an igniter port coupled to the inner and outer combustor shrouds at a port angle defined by an igniter port centerline axis and the combustor centerline axis, the igniter port including a tubular guide tube and a tubular igniter boss that are concentrically aligned along the igniter port centerline axis; the guide tube having a proximal guide tube axial end that is coupled to and outwardly projects from the outer shroud, a guide tube axial length, and a guide tube inner circumferential profile having a first minimum dimension specification; the igniter boss having a proximal boss axial end that is coupled to and projecting outwardly from the inner shroud, a distal boss axial end proximal the guide tube proximal end, an igniter boss axial length, and an igniter boss inner circumferential profile having a second minimum dimension specification; said igniter alignment tool comprising: an outer sleeve, having a first distal end defining a first outer circumferential profile that is adapted for slidable insertion into a first minimum dimension guide tube inner circumferential profile, the outer sleeve first circumferential profile continuous at least along its axial length that corresponds to the axial length of the guide tube; and an inner sleeve, having a second distal end defining a second outer circumferential profile that is adapted for slidable insertion into a second minimum dimension igniter boss inner circumferential profile; the inner sleeve slidably retained in nested concentric alignment within the outer sleeve, with the combined nested sleeves slidably insertable within concentrically aligned guide tube and igniter boss respective first and second inner circumferential profiles.