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STATIC SEAL STRUCTURE

  • US 3,750,398 A
  • Filed: 05/17/1971
  • Issued: 08/07/1973
  • Est. Priority Date: 05/17/1971
  • Status: Expired due to Term
First Claim
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1. A static seal structure for an axial flow gas turbine, said turbine having a casing structure enclosing a plenum chamber, a plurality of combustion chambers disposed in an annular array in said plenum chamber, each of said combustion chambers having a generally axial transition member at one end thereof to direct hot motive gases from the combustion chamber to a first stage of the turbine, a generally annular frame structure disposed between the plenum chamber and said first stage, said frame structure having a plurality of openings corresponding in shape and position to said transition members and each transition member extending through one of said openings, said frame structure closing the spaces between adjacent transition members, an annular seal member secured to the radially inner edge of the frame structure, an annular seal housing structure cooperating with said seal member to prevent leakage from the plenum chamber past the edge of the frame, said frame structure being divided into two spaced halves along a plane intersecting one of said openings, and a sealing member covering and sealing at least a portion of each of the spaces between halves of the frame, said last-mentioned sealing members each being secured to one of said halves on the plenum chamber side thereof.

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