Accession Number : ADD013975

Title :   Self-Locking Outer Air Seal With Full Backside Cooling.

Descriptive Note : Patent, Filed 12 May 86, Patented 21 Jun 88,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Liang, George

Report Date : 21 Jun 1988

Pagination or Media Count : 6

Abstract : An air seal assembly for a gas turbine engine comprising a full rin g cover plate and seal segment attached to impingement boxes. The impingement boxes have counter mounted hooks that interlock with a turbine flange and cover plate to secure the seal assembly. Holes in the impingement boxes direct cooling air to the entire backside of seal. Seals are mounted to the impingement boxes by pedestals that are positioned to enhance seal flexibility since axial edges are unrestrained. Patents. (fr)

Descriptors :   *GAS SEALS, AIR, BOXES, COOLING, EDGES, FLANGES, GAS TURBINES, IMPINGEMENT, PATENTS

Subject Categories : Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE