Apparatuses are provided for reducing noise generation from a dead ended conduit in a gas turbine engine. In particular A scooped bellmouth is provided that comprises a bellmouth within a surface having an outer perimeter an inner perimeter and a ramp dive...

A gas turbine engine system having improved thermal efficiency, which comprises: (1) an inlet air stream (66); and (2) a dry low emissions combustor assembly (22) having an air inlet (156) for receiving the inlet air stream, at least one bleed air port and...

Air (3) entering the blower or compressor passes a first row of stator blades (4) with air injection nozzles (11) at the blade roots on the stator housing (2). There is a first row of rotor blades (7) and a second row of stator blades (5) which may have ai...

The air bleed system has orifices (20, 21) through an outer skin (9) of the engine housing (1) that delimits cavities (11, 12) with its lining (10) through which bled air from the compressor is fed to ducts (5) with intakes (7) round the orifices. The orif...