IPC Classification

Class code (prefix) Descriptions Number of results
F02C 1/00 Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
F02C 1/02 Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being an unheated pressurised gas
F02C 1/04 Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly
F02C 1/05 Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly characterised by the type or source of heat, e.g. using nuclear or solar energy
F02C 1/06 Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly characterised by the type or source of heat, e.g. using nuclear or solar energy using reheated exhaust gas
F02C 1/08 Semi-closed cycles
F02C 1/10 Closed cycles
F02C 3/00 Gas-turbine plants characterised by the use of combustion products as the working fluid
F02C 3/02 Gas-turbine plants characterised by the use of combustion products as the working fluid using exhaust-gas pressure in a pressure exchanger to compress combustion-air
F02C 3/04 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
F02C 3/05 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor having compressor and turbine passages in a single rotor the compressor and the turbine being of the radial flow type
F02C 3/06 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising only axial stages
F02C 3/08 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising at least one radial stage
F02C 3/09 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising at least one radial stage of the centripetal type
F02C 3/10 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with another turbine driving an output shaft but not driving the compressor
F02C 3/13 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor having variable working fluid interconnections between turbines or compressors or stages of different rotors
F02C 3/14 Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant
F02C 3/16 Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant the combustion chambers being formed at least partly in the turbine rotor
F02C 3/20 Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
F02C 3/22 Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
F02C 3/24 Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being liquid at standard temperature and pressure
F02C 3/26 Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension
F02C 3/28 Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension using a separate gas producer for gasifying the fuel before combustion
F02C 3/30 Adding water, steam or other fluids to the combustible ingredients or to the working fluid before discharge from the turbine
F02C 3/32 Inducing air flow by fluid jet, e.g. ejector action
F02C 3/34 Gas-turbine plants characterised by the use of combustion products as the working fluid with recycling of part of the working fluid, i.e. semi-closed cycles with combustion products in the closed part of the cycle
F02C 3/36 Open cycles
F02C 3/045 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor having compressor and turbine passages in a single rotor
F02C 3/055 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor being of the positive-displacement type
F02C 3/067 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising only axial stages having counter-rotating rotors
F02C 3/073 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising only axial stages the compressor and turbine stages being concentric
F02C 3/107 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with two or more rotors connected by power transmission
F02C 3/113 Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with two or more rotors connected by power transmission with variable power transmission between rotors
F02C 5/00 Gas-turbine plants characterised by the working fluid being generated by intermittent combustion
F02C 5/02 Gas-turbine plants characterised by the working fluid being generated by intermittent combustion characterised by the arrangement of the combustion chamber in the plant
F02C 5/04 Gas-turbine plants characterised by the working fluid being generated by intermittent combustion characterised by the arrangement of the combustion chamber in the plant the combustion chambers being formed at least partly in the turbine rotor
F02C 5/06 Gas-turbine plants characterised by the working fluid being generated by intermittent combustion the working fluid being generated in an internal-combustion gas generator of the positive-displacement type having essentially no mechanical power output
F02C 5/08 Gas-turbine plants characterised by the working fluid being generated by intermittent combustion the working fluid being generated in an internal-combustion gas generator of the positive-displacement type having essentially no mechanical power output the gas generator being of the free-piston type
F02C 5/10 Gas-turbine plants characterised by the working fluid being generated by intermittent combustion the working fluid forming a resonating or oscillating gas column, i.e. the combustion chambers having no positively actuated valves, e.g. using Helmholtz effect
F02C 5/11 Gas-turbine plants characterised by the working fluid being generated by intermittent combustion the working fluid forming a resonating or oscillating gas column, i.e. the combustion chambers having no positively actuated valves, e.g. using Helmholtz effect using valveless combustion chambers
F02C 5/12 Gas-turbine plants characterised by the working fluid being generated by intermittent combustion the combustion chambers having inlet or outlet valves, e.g. Holzwarth gas-turbine plants
F02C 6/00 Plural gas-turbine plantsCombinations of gas-turbine plants with other apparatusAdaptations of gas-turbine plants for special use
F02C 6/02 Plural gas-turbine plants having a common power output
F02C 6/04 Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
F02C 6/06 Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output providing compressed gas
F02C 6/08 Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output providing compressed gas the gas being bled from the gas-turbine compressor
F02C 6/10 Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
F02C 6/12 Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
F02C 6/14 Gas-turbine plants having means for storing energy, e.g. for meeting peak loads
F02C 6/16 Gas-turbine plants having means for storing energy, e.g. for meeting peak loads for storing compressed air
F02C 6/18 Plural gas-turbine plantsCombinations of gas-turbine plants with other apparatusAdaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
F02C 6/20 Adaptations of gas-turbine plants for driving vehicles
F02C 7/00 Features, component parts, details or accessories, not provided for in, or of interest apart from, groups Air intakes for jet-propulsion plants
F02C 7/04 Air intakes for gas-turbine plants or jet-propulsion plants
F02C 7/05 Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
F02C 7/06 Arrangement of bearingsLubricating
F02C 7/08 Heating air supply before combustion, e.g. by exhaust gases
F02C 7/10 Heating air supply before combustion, e.g. by exhaust gases by means of regenerative heat-exchangers
F02C 7/12 Cooling of plants
F02C 7/14 Cooling of plants of fluids in the plant
F02C 7/16 Cooling of plants characterised by cooling medium
F02C 7/18 Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air
F02C 7/20 Mounting or supporting of plantAccommodating heat expansion or creep
F02C 7/22 Fuel supply systems
F02C 7/24 Heat or noise insulation
F02C 7/25 Fire protection or prevention
F02C 7/26 StartingIgnition
F02C 7/27 Fluid drives
F02C 7/28 Arrangement of seals
F02C 7/30 Preventing corrosion in gas-swept spaces
F02C 7/32 Arrangement, mounting, or driving, of auxiliaries
F02C 7/36 Power transmission between the different shafts of the gas-turbine plant, or between the gas-turbine plant and the power user
F02C 7/042 Air intakes for gas-turbine plants or jet-propulsion plants having variable geometry
F02C 7/045 Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
F02C 7/047 Heating to prevent icing
F02C 7/052 Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with dust-separation devices
F02C 7/055 Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with intake grids, screens or guards
F02C 7/057 Control or regulation
F02C 7/105 Heating air supply before combustion, e.g. by exhaust gases by means of regenerative heat-exchangers of the rotary type
F02C 7/141 Cooling of plants of fluids in the plant of working fluid
F02C 7/143 Cooling of plants of fluids in the plant of working fluid before or between the compressor stages
F02C 7/224 Heating fuel before feeding to the burner
F02C 7/228 Dividing fuel between various burners
F02C 7/232 Fuel valvesDraining valves or systems
F02C 7/236 Fuel delivery systems comprising two or more pumps
F02C 7/262 Restarting after flame-out
F02C 7/264 Ignition
F02C 7/266 Electric
F02C 7/268 Starting drives for the rotor
F02C 7/272 Fluid drives generated by cartridges
F02C 7/275 Mechanical drives
F02C 7/277 Mechanical drives the starter being a turbine
F02C 9/00 Controlling gas-turbine plantsControlling fuel supply in air-breathing jet-propulsion plants
F02C 9/16 Control of working fluid flow
F02C 9/18 Control of working fluid flow by bleeding, by-passing or acting on variable working fluid interconnections between turbines or compressors or their stages
F02C 9/20 Control of working fluid flow by throttlingControl of working fluid flow by adjusting vanes
F02C 9/22 Control of working fluid flow by throttlingControl of working fluid flow by adjusting vanes by adjusting turbine vanes
F02C 9/24 Control of the pressure level in closed cycles
F02C 9/26 Control of fuel supply
F02C 9/28 Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed
F02C 9/30 Control of fuel supply characterised by variable fuel pump output
F02C 9/32 Control of fuel supply characterised by throttling of fuel
F02C 9/34 Joint control of separate flows to main and auxiliary burners
F02C 9/36 Control of fuel supply characterised by returning of fuel to sump
F02C 9/38 Control of fuel supply characterised by throttling and returning of fuel to sump
F02C 9/40 Control of fuel supply specially adapted to the use of a special fuel or a plurality of fuels
F02C 9/42 Control of fuel supply specially adapted for the control of two or more plants simultaneously
F02C 9/44 Control of fuel supply responsive to the speed of aircraft, e.g. Mach number control, optimisation of fuel consumption
F02C 9/46 Emergency fuel control
F02C 9/48 Control of fuel supply conjointly with another control of the plant
F02C 9/50 Control of fuel supply conjointly with another control of the plant with control of working fluid flow
F02C 9/52 Control of fuel supply conjointly with another control of the plant with control of working fluid flow by bleeding or by-passing the working fluid
F02C 9/54 Control of fuel supply conjointly with another control of the plant with control of working fluid flow by throttling the working fluid, by adjusting vanes
F02C 9/56 Control of fuel supply conjointly with another control of the plant with power transmission control
F02C 9/58 Control of fuel supply conjointly with another control of the plant with power transmission control with control of a variable-pitch propeller