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Temperature control device for gas turbines

  • US 4,329,113 A
  • Filed: 10/05/1979
  • Issued: 05/11/1982
  • Est. Priority Date: 10/06/1978
  • Status: Expired due to Term
First Claim
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1. A gas turbine shroud including a casing and an abradable member mounted on an annular support, said support comprising:

  • a first annular shell having an interior wall portion;

    a flexible annular wall interconnecting said first shell to said turbine casing;

    a second shell mounted inside said first shell for bracing said first shell and for receiving compressed air so as to brace said first shell; and

    means for circulating air between said first and second shells so as to cool said first and second shells and for circulating air along said interior wall portion of said first shell onto said abradable member so as to cool said abradable member by impingement with air.

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