Patent ID: 6779597
Filing Date: 2004-08-24
Classification: F01D,F05D,F28F,Y10S

Abstract:
A multiple impingement cooled structure, comprising:a base having an inner surface exposed to a hot gas flowpath and an outer surface exposed to a flow of cooling fluid; a first baffle having a plurality of impingement cooling holes formed in a first section thereof, said cooling holes being in fluid communication with a source of cooling fluid for directing said cooling fluid against a first portion of said outer surface, said first section of said first baffle being spaced a first distance from said outer surface; a cavity for receiving said cooling fluid after said cooling fluid has been directed against said first portion of said outer surface; and a second baffle having a plurality of impingement cooling holes in fluid communication with said cavity for directing said cooling fluid against a second portion of said outer surface, said second baffle being spaced a second distance from said outer surface, wherein said first distance and said second distance are substantially equal.