公开(公告)号：EP3854995A1

公开(公告)日：2021-07-28

申请号：EP21153834.3

申请日：2021-01-27

申请人： Raytheon Technologies Corporation

发明人： LIENAU, Jeffrey J. ,  NEWMAN, Robert ,  CHUONG, Conway ,  KOPP-VAUGHAN, Kristin ,  MATHIYALAGAN, Senthil Prasad ,  NELANTI, Krishna ,  UPPARA ALLABANDA, Rajendra Prasad

IPC分类号： F01D11/00 ,  F01D25/24 ,  F02C7/28

摘要： An air seal assembly (76) for a gas turbine includes a flow path platform (66). The air seal assembly (76) further includes a casing (60) disposed radially outside the flow path platform (66). The air seal assembly (76) further includes an annular finger seal (74) mounted to the casing (60) and disposed between the flow path platform (66) and the casing (60). The annular finger seal (74) includes a first circumferential portion (80) mounted to the casing (60), a second circumferential portion (86) extending from the first circumferential portion (80), and a third circumferential portion (88) extending from the second circumferential portion (86) and contacting an outer surface (90) of the flow path platform (66). The third circumferential portion (88) includes a plurality of air cooling holes (98) configured to direct a cooling air stream (100) onto the flow path platform (66).