Thermal-acoustic insulation structure for the exhaust of a rotating machine

摘要

A thermal acoustic insulation structure including: a metal internal sheet having an exposed surface configured to be exposed to a hot gas, an external sheet and an insulation sandwiched between the internal and external sheets; a bar secured to the metal internal sheet and extending through at least a portion of the insulation; a bracket connected to the external sheet or to a support plate extending from the external sheet, wherein the bracket includes an opening configured to receive an end of the bar; a fastener securing the end of the bar to the bracket, and an insulating washer separating the bracket from the bar and the fastener.