Patent ID: 8069648
Filing Date: 2011-12-06
Classification: F01D,F02C,F02K,F05D,Y02T

Abstract:
1. A system comprising: a bypass duct having an inner margin and an outer margin; an annular turbine case formed at the inner margin of the bypass duct; a flowpath ring for turbine exhaust, coaxially disposed within the annular turbine case; a splash plate extending axially between the annular turbine case and the flowpath ring; a plurality of cooling fluid apertures in the annular turbine case, for providing cooling fluid flow from the bypass duct onto the splash plate; and a plurality of impingement holes in the splash plate, for providing impingement flow onto the flowpath ring; and a blocker door positioned in the bypass duct in a downstream direction from the plurality of cooling fluid apertures, for increasing a relative pressure of the cooling fluid flow from the bypass duct onto the splash plate.