Patent ID: 9151226
Filing Date: 2015-10-06
Classification: F01D,F02C,F02K,F05D,F28F,Y02T

Abstract:
1. A thermal radiation shield comprising: a corrugated ring section; and a mounting base disposed at an aft end of the ring section for securing the corrugated ring section within a generally annular cavity defined at least in part by a hot fluid flow path boundary wall, and a radially adjacent and spaced apart cold fluid flow path boundary wall, the corrugated ring section configured to substantially block a line of sight between the hot fluid flow path boundary wall and the cold fluid flow path boundary wall; wherein the hot fluid flow path boundary wall comprises a radially inner wall of a vane pack defining an axial core flow path through a mid-turbine frame; and wherein at least an axial portion of the radially inner wall of the vane pack includes a noncircular cross-section.