Patent ID: 9279334
Filing Date: 2016-03-08
CPC Classification: F01D,F02C,F04D,F05D,Y02E

Claim Text:
1. A gas turbine engine, comprising: (a) a casing having a longitudinal axis, said casing defining an inlet gas passageway for receiving an inlet gas, and an exhaust gas passageway for discharge of combustion gases; (b) an axial flow compressor rotor, comprising a compressor shaft, at least one compressor disc, and a plurality of compressor blades associated with said at least one compressor disc, said plurality of compressor blades sized and shaped to increase velocity of said inlet gas received from said inlet gas passageway from subsonic velocity to supersonic velocity; (c) a stator, comprising one or more aerodynamic ducts disposed about said longitudinal axis, said one or more aerodynamic ducts each comprising (1) a supersonic diffuser including a portion having a converging cross-sectional area in a flow-wise direction, for receiving said inlet gas at relative supersonic velocity and decelerating said inlet gas using one or more shock structures, (2) a subsonic diffuser including a portion having diverging cross-sectional area in a flow-wise direction, for decelerating said inlet gas to convert kinetic energy to pressure, (3) a throat located between said supersonic diffuser and said subsonic diffuser and including a portion having minimal cross-sectional area within said aerodynamic duct, (4) a fuel supply mechanism for supply of fuel, (5) a flameholder located downstream of the throat, wherein the fuel is combusted to generate the combustion gases, and (6) a choke; and (d) a turbine located downstream of the choke and comprising a turbine shaft, one or more turbine discs, and plurality of turbine blades associated with each of the one or more turbine discs and configured to receive the combustion gases from said one or more aerodynamic ducts and discharge the combustion gases to the exhaust gas passageway, said plurality of turbine blades configured to extract power from said combustion gases and generate shaft power.