Patent ID: 7797948

Claim:
A transition-to-turbine seal for a gap between a gas turbine engine transition outlet that comprises a flange having a downstream surface and a row 1 vane segment that comprises an upstream lip, the transition-to-turbine seal comprising: an upstream portion adapted to engage the transition outlet flange and comprising a primary wall, the primary wall comprising a proximal section comprising a plurality of circumferentially spaced apart recesses open on a radially inward end with respect to a transition central axis, and separated by intervening walls, each said recess in fluid communication with a plurality of outlets of cooling fluid holes formed in the primary wall, the cooling fluid holes in fluid communication with a supply of compressed fluid, wherein said cooling fluid holes direct the compressed fluid in a radially inward angle with respect to the transition central axis, and a distal section providing an engaging surface, the engaging surface and intervening walls being adapted to contact an opposing distal section of the transition outlet flange downstream surface; and a downstream portion comprising a groove adapted to engage the row 1 vane segment upstream lip.