Patent ID: 7093837
Filing Date: 2006-08-22
Classification: F23R

Abstract:
1. A turbine seal, comprising: an outer housing having an outer coupler section adapted to be attached to a first turbine component and an outer transition section extending from the outer coupler section at a first end of the outer transition section and continuing to a second end of the outer transition section, adapted to be attached to a second turbine component during operation of a turbine, wherein the outer transition section tapers from a first diameter at the first end of the outer transition section to a second diameter, which is larger than the first diameter, at the second end of the outer transition section; an inner housing having an inner coupler section adapted to be attached to the outer coupler section of the outer housing and an inner transition section extending from the inner coupler section at a first end of the inner transition section and continuing to a second end of the inner transition section, attached to the outer housing during operation of the turbine; wherein the inner housing is configured to fit inside the outer housing and the inner transition section tapers from a third diameter at the first end of the inner transition section to a fourth diameter, which is larger than the third diameter, at the second end of the inner transition section; a center sealing member positioned between the inner housing and the outer housing and including a plurality of slots forming leaves between adjacent slots; and wherein the outer housing provides a plurality of outer slots forming outer leaves between adjacent outer slots in the outer transition section of the outer housing and wherein the center sealing member is positioned relative to the outer housing so that the slots in the center sealing member align with the outer slots in the outer housing.