An airfoil array is disclosed. The airfoil array may include an endwall, and a plurality of airfoils radially projecting from the endwall. Each airfoil may have a first side and an opposite second side extending axially in chord between a leading edge and a trailing edge. The airfoils may be circumferentially spaced apart on the endwall thereby defining a plurality of flow passages between adjacent airfoils. The airfoil array may further include a convex profiled region extending from the endwall adjacent to the first side of at least one of said plurality of airfoils near the leading edge of the at least one of said plurality of airfoils, and a concave profiled region in the endwall and extending across said at least one of said plurality of flow passages.
申请公布号
EP2900920(A4)
申请公布日期
2016.07.06
申请号
EP20130853442
申请日期
2013.08.14
申请人
UNITED TECHNOLOGIES CORPORATION
发明人
PRAISNER, THOMAS, J.;AGGARWALA, ANDREW, S.;NASH, TIMOTHY, CHARLES;ALLEN-BRADLEY, EUNICE;GROVER, ERIC, A.