F01K1/00	7	Steam accumulators (use of accumulators in steam engine plants F01K3/00)	F01K1/00	F01K1/00		189
F01K1/02	8	for storing steam otherwise than in a liquid	F01K1/02	F01K1/02		94
F01K1/04	8	for storing steam in a liquid, e.g. Ruth&apos;s type (in alkali to increase steam pressure F22B1/20)	F01K1/04	F01K1/04		109
F01K1/06	9	Internal fittings facilitating steam distribution, steam formation, or circulation (acting during charging or discharging F01K1/08; fittings facilitating circulation through multiple accumulators F01K1/14)	F01K1/06	F01K1/06		25
F01K1/08	8	Charging or discharging of accumulators with steam (peculiar to multiple accumulators F01K1/12)	F01K1/08	F01K1/08		105
F01K1/10	8	specially adapted for superheated steam	F01K1/10	F01K1/10		32
F01K1/12	8	Multiple accumulators; Charging, discharging or control specially adapted therefor	F01K1/12	F01K1/12		38
F01K1/14	9	Circulation	F01K1/14	F01K1/14		5
F01K1/16	8	Other safety or control means	F01K1/16	F01K1/16		28
F01K1/18	9	for steam pressure	F01K1/18	F01K1/18		13
F01K1/20	8	Other steam-accumulator parts, details, or accessories	F01K1/20	F01K1/20		24
F01K3/00	7	Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein (regenerating exhaust steam F01K19/00)	F01K3/00	F01K3/00		691
F01K3/002	8	{Steam conversion}	F01K3/00	F01K3/00		80
F01K3/004	8	{Accumulation in the liquid branch of the circuit}	F01K3/00	F01K3/00		203
F01K3/006	8	{Accumulators and steam compressors}	F01K3/00	F01K3/00		263
F01K3/008	8	{Use of steam accumulators of the Ruth type for storing steam in water; Regulating thereof (Ruth accumulators per seF01K1/04)}	F01K3/00	F01K3/00		81
F01K3/02	8	Use of accumulators and specific engine types; Control thereof	F01K3/02	F01K3/02		219
F01K3/04	9	the engine being of multiple-inlet-pressure type	F01K3/04	F01K3/04		78
F01K3/06	8	the engine being of extraction or non-condensing type {(F01K3/004 takes precedence)}	F01K3/06	F01K3/06		90
F01K3/08	8	Use of accumulators and the plant being specially adapted for a specific use	F01K3/08	F01K3/08		99
F01K3/10	9	for vehicle drive, e.g. for accumulator locomotives	F01K3/10	F01K3/10		94
F01K3/12	8	having two or more accumulators	F01K3/12	F01K3/12		386
F01K3/14	8	having both steam accumulator and heater, e.g. superheating accumulator (steam superheaters per seF22G)	F01K3/14	F01K3/14		257
F01K3/16	9	Mutual arrangement of accumulator and heater	F01K3/16	F01K3/16		34
F01K3/18	8	having heaters (having both steam accumulator and heater F01K3/14; steam heaters per seF22)	F01K3/18	F01K3/18		399
F01K3/181	9	{using nuclear heat (F01K3/26 takes precedence)}	F01K3/18	F01K3/18		153
F01K3/183	10	{one heater being a fired superheater}	F01K3/18	F01K3/18		36
F01K3/185	9	{using waste heat from outside the plant (F02G5/00 takes precedence)}	F01K3/18	F01K3/18		244
F01K3/186	9	{using electric heat}	F01K3/18	F01K3/18		251
F01K3/188	9	{using heat from a specified chemical reaction}	F01K3/18	F01K3/18		169
F01K3/20	9	with heating by combustion gases of main boiler	F01K3/20	F01K3/20		83
F01K3/205	10	{more than one circuit being heated by one boiler}	F01K3/20	F01K3/20		37
F01K3/22	10	Controlling, e.g. starting, stopping (F01K7/00, F01K13/02 take precedence)	F01K3/22	F01K3/22		228
F01K3/24	9	with heating by separately-fired heaters	F01K3/24	F01K3/24		97
F01K3/242	10	{delivering steam to a common mains}	F01K3/24	F01K3/24		42
F01K3/245	10	{delivering steam at different pressure levels (F01K3/247 takes precedence)}	F01K3/24	F01K3/24		45
F01K3/247	10	{one heater being an incinerator}	F01K3/24	F01K3/24		67
F01K3/26	9	with heating by steam	F01K3/26	F01K3/26		42
F01K3/262	10	{by means of heat exchangers}	F01K3/26	F01K3/26		171
F01K3/265	11	{using live steam for superheating or reheating}	F01K3/26	F01K3/26		116
F01K3/267	10	{by mixing with steam, e.g. LOFFLER-boiler}	F01K3/26	F01K3/26		51
F01K5/00	7	Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type	F01K5/00	F01K5/00		192
F01K5/02	8	used in regenerative installation	F01K5/02	F01K5/02		205
F01K7/00	7	Steam engine plants characterised by the use of specific types of engine (F01K3/02 takes precedence); Plants or engines characterised by their use of special steam systems, cycles or processes (reciprocating-piston engines using uniflow principle F01B17/04); Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating	F01K7/00	F01K7/00		492
F01K7/02	8	the engines being of multiple-expansion type (the engines being only of turbine type F01K7/16; the engines using steam of critical or overcritical pressure F01K7/32; the engines being of extraction or non-condensing type F01K7/34)	F01K7/02	F01K7/02		496
F01K7/025	9	{Consecutive expansion in a turbine or a positive displacement engine}	F01K7/02	F01K7/02		290
F01K7/04	9	Control means specially adapted therefor	F01K7/04	F01K7/04		50
F01K7/06	8	the engines being of multiple-inlet-pressure type (F01K7/02 takes precedence; the engines being only of turbine type F01K7/16; the engines using steam of critical or over-critical pressure F01K7/32; the engines being of extraction or non-condensing type F01K7/34)	F01K7/06	F01K7/06		60
F01K7/08	9	Control means specially adapted therefor	F01K7/08	F01K7/08		19
F01K7/10	8	characterised by the engine exhaust pressure (the engines being only of turbine type F01K7/16; the engines using steam of critical or over-critical pressure F01K7/32; the engines being of extraction or non-condensing type F01K7/34)	F01K7/10	F01K7/10		52
F01K7/12	9	of condensing type	F01K7/12	F01K7/12		38
F01K7/14	10	Control means specially adapted therefor	F01K7/14	F01K7/14		24
F01K7/16	8	the engines being only of turbine type (the engines using steam of critical or overcritical pressure F01K7/32; the engines being of extraction or non-condensing type F01K7/34)	F01K7/16	F01K7/16		936
F01K7/165	9	{Controlling means specially adapted therefor}	F01K7/16	F01K7/16		204
F01K7/18	9	the turbine being of multiple-inlet-pressure type	F01K7/18	F01K7/18		177
F01K7/20	10	Control means specially adapted therefor	F01K7/20	F01K7/20		112
F01K7/22	9	the turbines having inter-stage steam heating	F01K7/22	F01K7/22		872
F01K7/223	10	{Inter-stage moisture separation}	F01K7/22	F01K7/22		93
F01K7/226	10	{Inter-stage steam injection}	F01K7/22	F01K7/22		34
F01K7/24	10	Control or safety means specially adapted therefor	F01K7/24	F01K7/24		407
F01K7/26	9	the turbines having inter-stage steam accumulation	F01K7/26	F01K7/26		49
F01K7/28	10	Control means specially adapted therefor	F01K7/28	F01K7/28		11
F01K7/30	9	the turbines using exhaust steam only	F01K7/30	F01K7/30		32
F01K7/32	8	the engines using steam of critical or overcritical pressure	F01K7/32	F01K7/32		1020
F01K7/34	8	the engines being of extraction or non-condensing type; Use of steam for feed-water heating (feed-water heaters in general F22D)	F01K7/34	F01K7/34		156
F01K7/345	9	{Control or safety-means particular thereto}	F01K7/34	F01K7/34		547
F01K7/36	9	the engines being of positive-displacement type	F01K7/36	F01K7/36		227
F01K7/38	9	the engines being of turbine type	F01K7/38	F01K7/38		614
F01K7/40	9	Use of two or more feed-water heaters in series	F01K7/40	F01K7/40		466
F01K7/42	9	Use of desuperheaters for feed-water heating	F01K7/42	F01K7/42		60
F01K7/44	9	Use of steam for feed-water heating and another purpose	F01K7/44	F01K7/44		295
F01K9/00	7	Plants characterised by condensers arranged or modified to co-operate with the engines (by condensers structurally combined with engines F01K11/00; steam condensers per seF28B)(F01K23/04 takes precedence)	F01K9/00	F01K9/00		717
F01K9/003	8	{condenser cooling circuits}	F01K9/00	F01K9/00		855
F01K9/006	8	{Vacuum-breakers}	F01K9/00	F01K9/00		21
F01K9/02	8	Arrangements or modifications of condensate or air pumps	F01K9/02	F01K9/02		296
F01K9/023	9	{Control thereof}	F01K9/02	F01K9/02		184
F01K9/026	9	{Returning condensate by capillarity}	F01K9/02	F01K9/02		21
F01K9/04	8	with dump valves to by-pass stages	F01K9/04	F01K9/04		179
F01K11/00	7	Plants characterised by the engines being structurally combined with boilers or condensers	F01K11/00	F01K11/00		595
F01K11/02	8	the engines being turbines	F01K11/02	F01K11/02		3642
F01K11/04	8	the boilers or condensers being rotated in use	F01K11/04	F01K11/04		275
F01K13/00	7	General layout or general methods of operation of complete plants	F01K13/00	F01K13/00		2949
F01K13/003	8	{Arrangements for measuring or testing (in general G01)}	F01K13/00	F01K13/00		376
F01K13/006	8	{Auxiliaries or details not otherwise provided for}	F01K13/00	F01K13/00		1110
F01K13/02	8	Controlling, e.g. stopping or starting	F01K13/02	F01K13/02		3377
F01K13/025	9	{Cooling the interior by injection during idling or stand-by}	F01K13/02	F01K13/02		126
F01K15/00	7	Adaptations of plants for special use {(F01K7/02 takes precedence)}	F01K15/00	F01K15/00		227
F01K15/02	8	for driving vehicles, e.g. locomotives	F01K15/02	F01K15/02		328
F01K15/025	9	{the vehicle being a steam locomotive}	F01K15/02	F01K15/02		148
F01K15/04	9	the vehicles being waterborne vessels	F01K15/04	F01K15/04		218
F01K15/045	10	{Control thereof (F01K3/22, F01K7/00, F01K13/02 take precedence)}	F01K15/04	F01K15/04		52
F01K17/00	7	Using steam or condensate extracted or exhausted from steam engine plant (for heating feed-water F01K7/34; returning condensate to boiler F22D{F01K7/36 takes precedence})	F01K17/00	F01K17/00		286
F01K17/005	8	{by means of a heat pump (heat pumps systems per seF25B)}	F01K17/00	F01K17/00		257
F01K17/02	8	for heating purposes, e.g. industrial, domestic (F01K17/06 takes precedence; domestic- or space-heating systems, e.g. central-heating systems, in general F24D1/00, F24D3/00, F24D9/00)	F01K17/02	F01K17/02		1676
F01K17/025	9	{in combination with at least one gas turbine, e.g. a combustion gas turbine}	F01K17/02	F01K17/02		413
F01K17/04	8	for specific purposes other than heating (F01K17/06 takes precedence)	F01K17/04	F01K17/04		515
F01K17/06	8	Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant	F01K17/06	F01K17/06		565
F01K19/00	7	Regenerating or otherwise treating steam exhausted from steam engine plant ({F01K3/006 takes precedence} plants characterised by use of means for storing steam in an alkali to increase steam pressure F01K5/00; returning condensate to boiler F22D)	F01K19/00	F01K19/00		221
F01K19/02	8	Regenerating by compression	F01K19/02	F01K19/02		194
F01K19/04	9	in combination with cooling or heating	F01K19/04	F01K19/04		257
F01K19/06	9	in engine cylinder	F01K19/06	F01K19/06		13
F01K19/08	9	compression done by injection apparatus, jet blower, or the like	F01K19/08	F01K19/08		102
F01K19/10	8	Cooling exhaust steam other than by condenser; Rendering exhaust steam invisible	F01K19/10	F01K19/10		70
F01K21/00	7	Steam engine plants not otherwise provided for	F01K21/00	F01K21/00		882
F01K21/005	8	{using mixtures of liquid and steam or evaporation of a liquid by expansion}	F01K21/00	F01K21/00		222
F01K21/02	8	with steam-generation in engine-cylinders	F01K21/02	F01K21/02		233
F01K21/04	8	using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas ({F01K25/005, F02B47/02 take precedence; injecting water or steam into a as gas turbine plant F02C3/305}; direct-contact steam generators in general F22B)	F01K21/04	F01K21/04		394
F01K21/042	9	{pure steam being expanded in a motor somewhere in the plant (F01K21/045 takes precedence)}	F01K21/04	F01K21/04		85
F01K21/045	9	{Introducing gas and steam separately into the motor, e.g. admission to a single rotor through separate nozzles}	F01K21/04	F01K21/04		55
F01K21/047	9	{having at least one combustion gas turbine}	F01K21/04	F01K21/04		489
F01K21/06	8	Treating live steam, other than thermodynamically, e.g. for fighting deposits in engine	F01K21/06	F01K21/06		87
F01K23/00	7	Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids	F01K23/00	F01K23/00		242
F01K23/02	8	the engine cycles being thermally coupled	F01K23/02	F01K23/02		706
F01K23/04	9	condensation heat from one cycle heating the fluid in another cycle	F01K23/04	F01K23/04		490
F01K23/06	9	combustion heat from one cycle heating the fluid in another cycle	F01K23/06	F01K23/06		576
F01K23/061	10	{with combustion in a fluidised bed (plants with a fluidised-bed combustor comprising only gas-turbines F02C3/205; fluidised-bed apparatus per seB01J8/18; fluidised-bed combustors F23C10/00; fluidised-bed steam-boilers F22B31/0007)}	F01K23/06	F01K23/06		57
F01K23/062	11	{the combustion bed being pressurised (pressurised fluid bed combustion per seF23C10/16)}	F01K23/06	F01K23/06		87
F01K23/064	10	{in combination with an industrial process, e.g. chemical, metallurgical}	F01K23/06	F01K23/06		198
F01K23/065	10	{the combustion taking place in an internal combustion piston engine, e.g. a diesel engine}	F01K23/06	F01K23/06		1371
F01K23/067	10	{the combustion heat coming from a gasification or pyrolysis process, e.g. coal gasification (gas turbines with fuel gasifiers F02C3/28)}	F01K23/06	F01K23/06		359
F01K23/068	11	{in combination with an oxygen producing plant, e.g. an air separation plant}	F01K23/06	F01K23/06		229
F01K23/08	10	with working fluid of one cycle heating the fluid in another cycle	F01K23/08	F01K23/08		293
F01K23/10	10	with exhaust fluid of one cycle heating the fluid in another cycle (F01K17/025 takes precedence)	F01K23/10	F01K23/10		3296
F01K23/101	11	{Regulating means specially adapted therefor (F01K23/105, F01K23/108 take precedence)}	F01K23/10	F01K23/10		713
F01K23/103	11	{with afterburner in exhaust boiler}	F01K23/10	F01K23/10		281
F01K23/105	12	{Regulating means specially adapted therefor}	F01K23/10	F01K23/10		90
F01K23/106	11	{with water evaporated or preheated at different pressures in exhaust boiler}	F01K23/10	F01K23/10		420
F01K23/108	12	{Regulating means specially adapted therefor}	F01K23/10	F01K23/10		153
F01K23/12	8	the engines being mechanically coupled (F01K23/02 takes precedence)	F01K23/12	F01K23/12		56
F01K23/14	9	including at least one combustion engine	F01K23/14	F01K23/14		287
F01K23/16	9	all the engines being turbines (F01K23/14 takes precedence)	F01K23/16	F01K23/16		220
F01K23/18	8	characterised by adaptation for specific use	F01K23/18	F01K23/18		86
F01K25/00	7	Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for	F01K25/00	F01K25/00		664
F01K25/005	8	{the working fluid being steam, created by combustion of hydrogen with oxygen}	F01K25/00	F01K25/00		293
F01K25/02	8	the fluid remaining in the liquid phase	F01K25/02	F01K25/02		287
F01K25/04	8	the fluid being in different phases, e.g. foamed	F01K25/04	F01K25/04		188
F01K25/06	8	using mixtures of different fluids (plants using mixtures of steam and gas F01K21/04)	F01K25/06	F01K25/06		645
F01K25/065	9	{with an absorption fluid remaining at least partly in the liquid state, e.g. water for ammonia (F01K5/00 takes precedence)}	F01K25/06	F01K25/06		412
F01K25/08	8	using special vapours	F01K25/08	F01K25/08		2214
F01K25/085	9	{the vapour being sulfur}	F01K25/08	F01K25/08		11
F01K25/10	9	the vapours being cold, e.g. ammonia, carbon dioxide, ether	F01K25/10	F01K25/10		2236
F01K25/103	10	{Carbon dioxide (F01K25/065 takes precedence)}	F01K25/10	F01K25/10		1900
F01K25/106	10	{Ammonia (F01K25/065 takes precedence)}	F01K25/10	F01K25/10		284
F01K25/12	9	the vapours being metallic, e.g. mercury	F01K25/12	F01K25/12		75
F01K25/14	9	using industrial or other waste gases	F01K25/14	F01K25/14		271
F01K27/00	7	Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for	F01K27/00	F01K27/00		2544
F01K27/005	8	{by means of hydraulic motors}	F01K27/00	F01K27/00		311
F01K27/02	8	Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat	F01K27/02	F01K27/02		898
