公开(公告)号：DE69613307T2

公开(公告)日：2001-09-20

申请号：DE69613307

申请日：1996-10-10

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SOECHTING FRIEDRICH O ,  PLANK WILLIAM L ,  HALL KENNETH B

IPC: F01D9/02 ,  F01D5/18 ,  F01D9/04 ,  F01D25/12 ,  F02C7/18

Abstract: A vane assembly (14) for a gas turbine engine (12) includes a plurality of vanes (28), each having a forward compartment (44) and an aft compartment (46), an inner vane support (30), a casing (16), and apparatus (50,54) for maintaining a pressure difference between the compartments. The casing (16), which includes an annulus (18), is positioned radially outside of the vanes. The vanes (28) extend between the inner vane support (30) and the casing (16). The apparatus for maintaining a pressure difference may comprise a flow meter (50,54) at the entrance to the aft compartment. A modulating valve (22) may be provided to control the flow of cooling air into the annulus, and thus into the vanes.

公开(公告)号：DE69613307D1

公开(公告)日：2001-07-19

申请号：DE69613307

申请日：1996-10-10

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SOECHTING FRIEDRICH O ,  PLANK WILLIAM L ,  HALL KENNETH B

IPC: F01D9/02 ,  F01D5/18 ,  F01D9/04 ,  F01D25/12 ,  F02C7/18

Abstract: A vane assembly (14) for a gas turbine engine (12) includes a plurality of vanes (28), each having a forward compartment (44) and an aft compartment (46), an inner vane support (30), a casing (16), and apparatus (50,54) for maintaining a pressure difference between the compartments. The casing (16), which includes an annulus (18), is positioned radially outside of the vanes. The vanes (28) extend between the inner vane support (30) and the casing (16). The apparatus for maintaining a pressure difference may comprise a flow meter (50,54) at the entrance to the aft compartment. A modulating valve (22) may be provided to control the flow of cooling air into the annulus, and thus into the vanes.