Patent ID: 6783824
Filing Date: 2004-08-31
Classification: B23P,F02K,F28D,F28F,Y10T

Abstract:
A ceramic matrix composite tubular shell structure having an inner wall, an outer wall and a plurality of cooling channels formed between said inner wall and said outer wall wherein said ceramic matrix composite tubular shell structure comprises:a. a fibrous preform of refractory fibers, wherein said refractory fibers extend continuously between said inner and outer walls and around said plurality of cooling channels to maximize the structural integrity of said shell structure; b. a fiber coating which fully encapsulates the refractory fibers of said fibrous preform; and c. a ceramic matrix material which fully encapsulates and consolidates the coated fibers of the said fibrous preform into a densified composite material, said plurality of cooling channels being formed by a corresponding plurality of radial webs that are spaced from one another and extend between said inner and outer walls, such that said inner wall, said outer wall and said radial webs are integrally connected together to form a high efficiency unitized monocoque tubular shell structure.