F02C1/00	7	Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid (by the use of combustion products F02C3/00, F02C5/00)	F02C1/00	F02C1/00		390
F02C1/002	8	{using an auxiliary fluid}	F02C1/00	F02C1/00		30
F02C1/005	9	{being recirculated}	F02C1/00	F02C1/00		76
F02C1/007	8	{combination of cycles}	F02C1/00	F02C1/00		159
F02C1/02	8	the working fluid being an unheated pressurised gas	F02C1/02	F02C1/02		421
F02C1/04	8	the working fluid being heated indirectly {(in a fluidised-bed combustor F02C3/205)}	F02C1/04	F02C1/04		471
F02C1/05	9	characterised by the type or source of heat, e.g. using nuclear or solar energy	F02C1/05	F02C1/05		697
F02C1/06	10	using reheated exhaust gas (F02C1/08 takes precedence)	F02C1/06	F02C1/06		161
F02C1/08	9	Semi-closed cycles	F02C1/08	F02C1/08		247
F02C1/10	9	Closed cycles	F02C1/10	F02C1/10		582
F02C1/105	10	{construction; details}	F02C1/10	F02C1/10		121
F02C3/00	7	Gas-turbine plants characterised by the use of combustion products as the working fluid (generated by intermittent combustion F02C5/00)	F02C3/00	F02C3/00		423
F02C3/02	8	using exhaust-gas pressure in a pressure exchanger to compress combustion-air (pressure exchangers per seF04F13/00)	F02C3/02	F02C3/02		180
F02C3/04	8	having a turbine driving a compressor (power transmission arrangements F02C7/36; control of working fluid flow F02C9/16)	F02C3/04	F02C3/04		2558
F02C3/045	9	having compressor and turbine passages in a single rotor-module (F02C3/073 takes precedence)	F02C3/045	F02C3/045		185
F02C3/05	10	the compressor and the turbine being of the radial flow type	F02C3/05	F02C3/05		205
F02C3/055	9	the compressor being of the positive-displacement type	F02C3/055	F02C3/055		131
F02C3/06	9	the compressor comprising only axial stages (F02C3/10 takes precedence)	F02C3/06	F02C3/06		553
F02C3/062	10	{the turbine being of the radial-flow type}	F02C3/06	F02C3/06		14
F02C3/064	10	{the compressor having concentric stages}	F02C3/06	F02C3/06		57
F02C3/067	10	having counter-rotating rotors (F02C3/073 takes precedence)	F02C3/067	F02C3/067		414
F02C3/073	10	the compressor and turbine stages being concentric	F02C3/073	F02C3/073		312
F02C3/08	9	the compressor comprising at least one radial stage (F02C3/10 takes precedence)	F02C3/08	F02C3/08		390
F02C3/085	10	{the turbine being of the radial-flow type (radial-radial) (F02C3/05 takes precedence)}	F02C3/08	F02C3/08		145
F02C3/09	10	of the centripetal type	F02C3/09	F02C3/09		62
F02C3/10	9	with another turbine driving an output shaft but not driving the compressor	F02C3/10	F02C3/10		656
F02C3/103	10	{the compressor being of the centrifugal type}	F02C3/10	F02C3/10		133
F02C3/107	9	with two or more rotors connected by power transmission	F02C3/107	F02C3/107		761
F02C3/113	10	with variable power transmission between rotors	F02C3/113	F02C3/113		346
F02C3/13	9	having variable working fluid interconnections between turbines or compressors or stages of different rotors {(controlling flow ratio between different flows of multi-flow jet-propulsion plant, e.g. ducted fan F02K3/075)}	F02C3/13	F02C3/13		261
F02C3/14	8	characterised by the arrangement of the combustion chamber in the plant (combustion chambers per seF23R; F02C3/205 takes precedence)	F02C3/14	F02C3/14		1071
F02C3/145	9	{the combustion chamber being in the reverse flow-type}	F02C3/14	F02C3/14		201
F02C3/16	9	the combustion chambers being formed at least partly in the turbine rotor {or in an other rotating part of the plant}	F02C3/16	F02C3/16		290
F02C3/165	10	{the combustion chamber contributes to the driving force by creating reactive thrust}	F02C3/16	F02C3/16		286
F02C3/20	8	using a special fuel, oxidant, or dilution fluid to generate the combustion products	F02C3/20	F02C3/20		758
F02C3/205	9	{in a fluidised-bed combustor (in combination with a steam cycle seeF01K23/061; fluidised-bed apparatus in general B01J8/18; fluidised-bed combustors in general F23C10/00)}	F02C3/20	F02C3/20		211
F02C3/22	9	the fuel or oxidant being gaseous at standard temperature and pressure (F02C3/28 takes precedence)	F02C3/22	F02C3/22		1793
F02C3/24	9	the fuel or oxidant being liquid at standard temperature and pressure	F02C3/24	F02C3/24		279
F02C3/26	9	the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension	F02C3/26	F02C3/26		335
F02C3/28	10	using a separate gas producer for gasifying the fuel before combustion	F02C3/28	F02C3/28		759
F02C3/30	9	Adding water, steam or other fluids {for influencing combustion, e.g. to obtain cleaner exhaust gases (F02C7/141, F02C7/30, F01D21/00, F01K21/04, F23D11/10 take precedence)}	F02C3/30	F02C3/30		1169
F02C3/305	10	{Increasing the power, speed, torque or efficiency of a gas turbine or the thrust of a turbojet engine by injecting or adding water, steam or other fluids (F01K21/04 takes precedence)}	F02C3/30	F02C3/30		532
F02C3/32	8	Inducing air flow by fluid jet, e.g. ejector action	F02C3/32	F02C3/32		240
F02C3/34	8	with recycling of part of the working fluid, i.e. semi-closed cycles with combustion products in the closed part of the cycle	F02C3/34	F02C3/34		801
F02C3/36	8	Open cycles	F02C3/36	F02C3/36		321
F02C3/365	9	{a part of the compressed air being burned, the other part being heated indirectly (in a fluidised-bed combustor F02C3/205)}	F02C3/36	F02C3/36		66
F02C5/00	7	Gas-turbine plants characterised by the working fluid being generated by intermittent combustion	F02C5/00	F02C5/00		242
F02C5/02	8	characterised by the arrangement of the combustion chamber in the chamber in the plant (combustion chambers per seF23R)	F02C5/02	F02C5/02		361
F02C5/04	9	the combustion chambers being formed at least partly in the turbine rotor	F02C5/04	F02C5/04		253
F02C5/06	8	the working fluid being generated in an internal-combustion gas generated of the positive-displacement type having essentially no mechanical power output (internal-combustion engines with prolonged expansion using exhaust gas turbines F02B)	F02C5/06	F02C5/06		379
F02C5/08	9	the gas generator being of the free-piston type	F02C5/08	F02C5/08		263
F02C5/10	8	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	F02C5/10	F02C5/10		103
F02C5/11	9	using valveless combustion chambers	F02C5/11	F02C5/11		42
F02C5/12	8	the combustion chambers having inlet or outlet valves, e.g. Holzwarth gas-turbine plants	F02C5/12	F02C5/12		791
F02C6/00	7	Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use	F02C6/00	F02C6/00		2093
F02C6/003	8	{Gas-turbine plants with heaters between turbine stages}	F02C6/00	F02C6/00		497
F02C6/006	8	{Open cycle gas-turbine in which the working fluid is expanded to a pressure below the atmospheric pressure and then compressed to atmospheric pressure}	F02C6/00	F02C6/00		145
F02C6/02	8	Plural gas-turbine plants having a common power output	F02C6/02	F02C6/02		356
F02C6/04	8	Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output (F02C6/18 takes precedence {; for a fluidised-bed combustor F02C3/205})	F02C6/04	F02C6/04		322
F02C6/06	9	providing compressed gas (F02C6/10 takes precedence)	F02C6/06	F02C6/06		339
F02C6/08	10	the gas being bled from the gas-turbine compressor	F02C6/08	F02C6/08		1780
F02C6/10	9	supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant	F02C6/10	F02C6/10		362
F02C6/12	10	Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure	F02C6/12	F02C6/12		3159
F02C6/14	8	Gas-turbine plants having means for storing energy, e.g. for meeting peak loads	F02C6/14	F02C6/14		525
F02C6/16	9	for storing compressed air	F02C6/16	F02C6/16		911
F02C6/18	8	using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants (using waste heat as source of energy for refrigeration plants F25B27/02; using the waste heat of a gasturbine for steam generation or in a steam cycle seeF01K23/10)	F02C6/18	F02C6/18		3069
F02C6/20	8	Adaptations of gas-turbine plants for driving vehicles	F02C6/20	F02C6/20		625
F02C6/203	9	{the vehicles being waterborne vessels}	F02C6/20	F02C6/20		90
F02C6/206	9	{the vehicles being airscrew driven}	F02C6/20	F02C6/20		494
F02C7/00	7	Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00&#160;-&#160;F02C6/00; Air intakes for jet-propulsion plants (controlling F02C9/00)	F02C7/00	F02C7/00		2436
F02C7/04	8	Air intakes for gas-turbine plants or jet-propulsion plants	F02C7/04	F02C7/04		2029
F02C7/042	9	having variable geometry	F02C7/042	F02C7/042		948
F02C7/045	9	having provisions for noise suppression	F02C7/045	F02C7/045		1126
F02C7/047	9	Heating to prevent icing	F02C7/047	F02C7/047		1135
F02C7/05	9	having provisions for obviating the penetration of damaging objects or particles	F02C7/05	F02C7/05		540
F02C7/052	10	with dust-separation devices	F02C7/052	F02C7/052		648
F02C7/055	10	with intake grids, screens or guards	F02C7/055	F02C7/055		566
F02C7/057	9	Control or regulation (conjointly with fuel supply control F02C9/50, with nozzle area control F02K1/16)	F02C7/057	F02C7/057		954
F02C7/06	8	Arrangements of bearings (bearings F16C); Lubricating ({of turbo machines F01D25/18; of machines or} engines in general F01M)	F02C7/06	F02C7/06		2970
F02C7/08	8	Heating air supply before combustion, e.g. by exhaust gases	F02C7/08	F02C7/08		1463
F02C7/10	9	by means of regenerative heat-exchangers	F02C7/10	F02C7/10		453
F02C7/105	10	of the rotary type (rotary heat exchangers per seF28D)	F02C7/105	F02C7/105		196
F02C7/12	8	Cooling of plants (of component parts, see the relevant subclasses, e.g. F01D; cooling of engines in general F01P)	F02C7/12	F02C7/12		1497
F02C7/125	9	{by partial arc admission of the working fluid or by intermittent admission of working and cooling fluid}	F02C7/12	F02C7/12		137
F02C7/14	9	of fluids in the plant {, e.g. lubricant or fuel (F02C7/185 takes precedence)}	F02C7/14	F02C7/14		1418
F02C7/141	10	of working fluid	F02C7/141	F02C7/141		766
F02C7/143	11	before or between the compressor stages	F02C7/143	F02C7/143		1002
F02C7/1435	12	{by water injection}	F02C7/143	F02C7/143		433
F02C7/16	9	characterised by cooling medium	F02C7/16	F02C7/16		918
F02C7/18	10	the medium being gaseous, e.g. air {(F02C7/125 takes precedence)}	F02C7/18	F02C7/18		2976
F02C7/185	11	{Cooling means for reducing the temperature of the cooling air or gas}	F02C7/18	F02C7/18		853
F02C7/20	8	Mounting or supporting of plant; Accommodating heat expansion or creep	F02C7/20	F02C7/20		1771
F02C7/22	8	Fuel supply systems	F02C7/22	F02C7/22		3261
F02C7/222	9	{Fuel flow conduits, e.g. manifolds}	F02C7/22	F02C7/22		1120
F02C7/224	9	Heating fuel before feeding to the burner	F02C7/224	F02C7/224		1578
F02C7/228	9	Dividing fuel between various burners	F02C7/228	F02C7/228		635
F02C7/232	9	Fuel valves {(control of fuel supply by means of fuel metering valves F02C9/263)}; Draining valves or systems (valves in general F16K)	F02C7/232	F02C7/232		1482
F02C7/236	9	Fuel delivery systems comprising two or more pumps	F02C7/236	F02C7/236		570
F02C7/2365	10	{comprising an air supply system for the atomisation of fuel}	F02C7/236	F02C7/236		152
F02C7/24	8	Heat or noise insulation (air intakes having provisions for noise suppression F02C7/045; turbine exhaust heads, chambers, or the like F01D25/30; silencing nozzles of jet-propulsion plants F02K1/00)	F02C7/24	F02C7/24		1166
F02C7/25	9	Fire protection or prevention (in general A62)	F02C7/25	F02C7/25		378
F02C7/26	8	Starting; Ignition	F02C7/26	F02C7/26		1089
F02C7/262	9	Restarting after flame-out	F02C7/262	F02C7/262		239
F02C7/264	9	Ignition	F02C7/264	F02C7/264		663
F02C7/266	10	Electric (sparking plugs H01T)	F02C7/266	F02C7/266		684
F02C7/268	9	Starting drives for the rotor {, acting directly on the rotor of the gas turbine to be started}	F02C7/268	F02C7/268		480
F02C7/27	10	Fluid drives (turbine starters F02C7/277)	F02C7/27	F02C7/27		259
F02C7/272	11	generated by cartridges	F02C7/272	F02C7/272		101
F02C7/275	10	Mechanical drives	F02C7/275	F02C7/275		469
F02C7/277	11	the starter being a {separate} turbine	F02C7/277	F02C7/277		568
F02C7/28	8	Arrangement of seals	F02C7/28	F02C7/28		1625
F02C7/30	8	Preventing corrosion {or unwanted deposits} in gas-swept spaces	F02C7/30	F02C7/30		342
F02C7/32	8	Arrangement, mounting, or driving, of auxiliaries	F02C7/32	F02C7/32		2622
F02C7/36	8	Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user ({F02C3/107&#160;-&#160;F02C3/13 and}F02C7/32 take precedence; couplings for transmitting rotation F16D; gearing in general F16H)	F02C7/36	F02C7/36		3439
F02C9/00	7	Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants (controlling air intakes F02C7/057; controlling turbines F01D; controlling compressors F04D27/00; controlling in general G05)	F02C9/00	F02C9/00		1983
F02C9/16	8	Control of working fluid flow (F02C9/48 takes precedence; control of air-intake flow F02C7/057)	F02C9/16	F02C9/16		983
F02C9/18	9	by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages {(F02C3/113 takes precedence)}	F02C9/18	F02C9/18		1975
F02C9/20	9	by throttling; by adjusting vanes	F02C9/20	F02C9/20		693
F02C9/22	10	by adjusting turbine vanes	F02C9/22	F02C9/22		360
F02C9/24	9	Control of the pressure level in closed cycles	F02C9/24	F02C9/24		172
F02C9/26	8	Control of fuel supply (F02C9/48 takes precedence; fuel valves F02C7/232)	F02C9/26	F02C9/26		1116
F02C9/263	9	{by means of fuel metering valves}	F02C9/26	F02C9/26		876
F02C9/266	9	{specially adapted for gas turbines with intermittent fuel injection}	F02C9/26	F02C9/26		30
F02C9/28	9	Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed (F02C9/30&#160;-&#160;F02C9/38, F02C9/44 take precedence)	F02C9/28	F02C9/28		2740
F02C9/285	10	{Mechanical command devices linked to the throttle lever}	F02C9/28	F02C9/28		25
F02C9/30	9	characterised by variable fuel pump output	F02C9/30	F02C9/30		281
F02C9/32	9	characterised by throttling of fuel (F02C9/38 takes precedence)	F02C9/32	F02C9/32		752
F02C9/34	10	Joint control of separate flows to main and auxiliary burners	F02C9/34	F02C9/34		279
F02C9/36	9	characterised by returning of fuel to sump (F02C9/38 takes precedence)	F02C9/36	F02C9/36		82
F02C9/38	9	characterised by throttling and returning of fuel to sump	F02C9/38	F02C9/38		130
F02C9/40	9	specially adapted to the use of a special fuel or a plurality of fuels	F02C9/40	F02C9/40		761
F02C9/42	9	specially adapted for the control of two or more plants simultaneously	F02C9/42	F02C9/42		337
F02C9/44	9	responsive to the speed of aircraft, e.g. Mach number control, optimisation of fuel consumption	F02C9/44	F02C9/44		115
F02C9/46	9	Emergency fuel control	F02C9/46	F02C9/46		408
F02C9/48	8	Control of fuel supply conjointly with another control of the plant (with nozzle section control F02K1/17)	F02C9/48	F02C9/48		344
F02C9/50	9	with control of working fluid flow	F02C9/50	F02C9/50		201
F02C9/52	10	by bleeding or by-passing the working fluid	F02C9/52	F02C9/52		170
F02C9/54	10	by throttling the working fluid, by adjusting vanes	F02C9/54	F02C9/54		322
F02C9/56	9	with power transmission control	F02C9/56	F02C9/56		136
F02C9/58	10	with control of a variable-pitch propeller	F02C9/58	F02C9/58		127
