Internal pocket fastener system for ceramic matrix composite heat exchanger

Abstract

A fastener system provides an internal pocket within a CMC HEX panel into which a fastener stud is inserted through an internal pocket opening and loaded to secure the CMC HEX panel to a support structure.

1 . A heat exchanger system comprising:
 a CMC HEX panel having an internal pocket formed therein, said internal pocket having at least one pocket opening in communication with said internal pocket which extends through an outer surface of said CMC HEX panel.   
     
     
         2 . The system as recited in  claim 1 , further comprising a fastener stud which defines a head and a shank, said head receivable within said internal pocket for rotation therein between an engaged and a disengaged position. 
     
     
         3 . The system as recited in  claim 2 , wherein said fastener stud head is 2-dimensional in shape. 
     
     
         4 . The system as recited in  claim 3 , wherein a lateral cross-section of said internal pocket corresponds to said fastener stud head. 
     
     
         5 . The system as recited in  claim 2 , wherein said fastener stud receives a foot hardware assembly to mount said CMC HEX panel to a support structure. 
     
     
         6 . The system as recited in  claim 1 , wherein said CMC HEX panel includes a multiple of coolant channels formed therein. 
     
     
         7 . The system as recited in  claim 6 , wherein said internal pocket is formed by at least one of said multiple of coolant channels. 
     
     
         8 . The system as recited in  claim 7 , wherein said internal pocket includes a metallic tubular liner. 
     
     
         9 . The system as recited in  claim 7 , wherein said metallic tubular liner includes a multiple of fastener shanks which extend transversely therefrom. 
     
     
         10 . A heat exchanger system assembly comprising:
 a CMC HEX panel having an internal pocket formed therein, said internal pocket having at least one pocket opening in communication with said internal pocket which extends through an outer surface of said CMC HEX panel;   a support structure; and   a fastener system that secures said CMC HEX panel to said support structure, said fastener system includes a fastener stud which defines a fastener stud head and a fastener shank, said fastener stud head receivable within said internal pocket through said pocket opening for rotation within said internal pocket between an engaged and a disengaged position, said support structure mounted to said fastener shank.   
     
     
         11 . The system as recited in  claim 10 , wherein said CMC HEX panel includes a multiple of coolant channels formed therein. 
     
     
         12 . The system as recited in  claim 11 , wherein said internal pocket is formed by at least one of said multiple of coolant channels. 
     
     
         13 . The system as recited in  claim 12 , wherein said internal pocket includes a metallic tubular liner. 
     
     
         14 . The system as recited in  claim 13 , wherein said metallic tubular liner includes a multiple of fastener shanks which extend transversely therefrom. 
     
     
         15 . The system as recited in  claim 10 , further comprising a multiple of metallic coolant tubes sandwiched between said CMC HEX panel and said support structure. 
     
     
         16 . A Maintainable Composite Panel heat exchanger system assembly comprising:
 a CMC HEX panel having an internal pocket formed therein, said internal pocket having at least one pocket opening transverse to said internal pocket which extends through an outer surface of said CMC HEX panel;   a support structure;   a multiple of metallic coolant tubes; and   a fastener system that secures said CMC HEX panel to said support structure, said fastener system including a fastener stud which defines a fastener stud head and a fastener stud shank, said head receivable within said internal pocket for rotation therein between an engaged and a disengaged position, said support structure mounted to said fastener shank to at least partially sandwich said multiple of metallic coolant tubes between said CMC HEX panel and said support structure.   
     
     
         17 . The system as recited in  claim 16 , further comprising a thermal insulation panel sandwiched between said multiple of metallic coolant tubes and said support structure. 
     
     
         18 . The system as recited in  claim 16 , wherein said fastener stud head is 2-dimensional in shape. 
     
     
         19 . The system as recited in  claim 18 , wherein a lateral cross-section of said internal pocket corresponds to said fastener stud head. 
     
     
         20 . The system as recited in  claim 18 , wherein said shank extends between two of said multiple of metallic coolant tubes.