Patent ID: 9157331
Filing Date: 2015-10-13
Classification: F01D,F05D

Abstract:
1. A gas turbine engine comprising: an engine casing; a compressor for generating compressed air; a turbine comprising: fluid supply structure comprising: wherein said engine casing and said vane carrier structure define an internal chamber in which said plenum structure is located, compressed air passing through said first fluid path structure flows into said plenum structure, and passes from said plenum structure so as to impinge on said vane carrier structure within said internal chamber; at least one conduit extending from said compressor, through said internal chamber, to a passage through said vane carrier providing cooling air from said compressor to an interior of vanes forming said at least one upstream row of vanes; said fluid control structure alternately providing a flow of compressed air from said first and second fluid path structures to said internal chamber; and a bore through said vane carrier adjacent to said downstream row of vanes defining a flow path for air from said internal chamber to an interior of vanes forming said downstream row of vanes during flow of compressed air from both said first and second fluid path structures.