A "dog bone" in cross section shaped seal mounted in adjacent grooves of segmented stator vanes span the axial extent covering a single casted three rows of vanes. The outer diameter shroud of the stator vane defines a portion of an enclosed cavity subjected to leakage flow in and out of the gas path where the flow reverses at some axial extent of the seal such that the forces acting at different locations on the seal reverses. In a preferred embodiment, the bulbous ends of the "dog bone" are solid coated metallic material.
申请公布号
US5158430(A)
申请公布日期
1992.10.27
申请号
US19910785901
申请日期
1991.11.01
申请人
UNITED TECHNOLOGIES CORPORATION
发明人
DIXON, WILLIAM E.;BURGE, JOSEPH C.;TIERNAN, JR., RICHARD J.;HENSEN, LEE E.