David A Stapleton

US Patent:

20170114670, Apr 27, 2017

Filed:

Apr 28, 2015

Appl. No.:

15/318121

Inventors:

- Schenectady NY, US
Michael John FRANKS - Cincinnati OH, US
David Scott STAPLETON - Boston MA, US

International Classification:

F01D 25/28
F01D 9/06
F01D 25/24

Abstract:

A shroud hanger assembly or shroud assembly is provided for components which may be formed of materials having differing coefficient thermal expansion. The assembly includes a multi-piece hanger including a shroud positioned in a cavity between a first hanger portion and a second hanger portion. A shroud may be formed of a low coefficient of thermal expansion material which may have a differing coefficient thermal expansion than the material defining the shroud hanger. The shroud is deflected by an axial force acting between the hanger and the shroud which also forms a seal. The seal compensates for differing rates of thermal growth between the shroud and the hanger throughout the engine operating envelope.