Patent ID: 8910947
Filing Date: 2014-12-16
Classification: F01D,F04D,F05D,Y10T

Abstract:
1. A method for forming a seal element on a substrate surface comprising the steps of: molding a layer of a base material on the substrate surface, the base material having an axial expanse, the substrate surface is an inboard surface of an inboard shroud of a stator assembly of a rotary engine, wherein the stator assembly comprises a plurality of vanes each having a root extending through the inboard surface of the inboard shroud, and wherein the step of forming the plurality of crenellations spaced by defined intervals in the face surface of the layer of the base material further comprises retaining a portion of the base material that encapsulates at least a portion of each of the roots of the plurality of vanes; forming a plurality of crenellations spaced by defined intervals in a face surface of the layer of the base material such that each of the plurality of crenellations extend axially along the axial expanse of the base material and such that each of the plurality of crenellations are spaced at intervals intermediate respective neighboring pairs of the plurality of vanes; and forming a layer of an elastomeric seal material on the crenellated layer of base material.