F23K1/00	7	Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus	F23K1/00	F23K1/00		2016
F23K1/02	8	Mixing solid fuel with a liquid, e.g. preparing slurries	F23K1/02	F23K1/02		179
F23K1/04	8	Heating fuel prior to delivery to combustion apparatus	F23K1/04	F23K1/04		707
F23K3/00	7	Feeding or distributing of lump or pulverulent fuel to combustion apparatus	F23K3/00	F23K3/00		3629
F23K3/02	8	Pneumatic feeding arrangements, i.e. by air blast	F23K3/02	F23K3/02		1695
F23K3/04	8	for locomotive boiler furnaces	F23K3/04	F23K3/04		659
F23K3/06	8	for shaft-type furnaces	F23K3/06	F23K3/06		240
F23K3/08	8	for furnaces having movable grate bars	F23K3/08	F23K3/08		173
F23K3/10	8	Under-feed arrangements	F23K3/10	F23K3/10		399
F23K3/12	9	feeding by piston	F23K3/12	F23K3/12		726
F23K3/14	9	feeding by screw	F23K3/14	F23K3/14		1139
F23K3/16	8	Over-feed arrangements	F23K3/16	F23K3/16		993
F23K3/18	9	Spreader stokers	F23K3/18	F23K3/18		92
F23K3/20	10	with moving hoppers	F23K3/20	F23K3/20		39
F23K3/22	8	Controlling thickness of fuel bed	F23K3/22	F23K3/22		127
F23K5/00	7	Feeding or distributing other fuel to combustion apparatus	F23K5/00	F23K5/00		310
F23K5/002	8	{Gaseous fuel}	F23K5/00	F23K5/00		583
F23K5/005	9	{from a central source to a plurality of burners}	F23K5/00	F23K5/00		169
F23K5/007	9	{Details}	F23K5/00	F23K5/00		843
F23K5/02	8	Liquid fuel	F23K5/02	F23K5/02		532
F23K5/04	9	Feeding or distributing systems using pumps (from a central source to a plurality of burners F23K5/06)	F23K5/04	F23K5/04		705
F23K5/06	9	from a central source to a plurality of burners	F23K5/06	F23K5/06		187
F23K5/08	9	Preparation of fuel	F23K5/08	F23K5/08		283
F23K5/10	10	Mixing with other fluids	F23K5/10	F23K5/10		249
F23K5/12	11	Preparing emulsions (burners spraying an emulsion of water and fuel into the combustion space F23D11/16)	F23K5/12	F23K5/12		312
F23K5/14	9	Details thereof	F23K5/14	F23K5/14		403
F23K5/142	10	{Fuel pumps}	F23K5/14	F23K5/14		242
F23K5/145	11	{combined with fans}	F23K5/14	F23K5/14		83
F23K5/147	10	{Valves}	F23K5/14	F23K5/14		395
F23K5/16	10	Safety devices (cleaning or purging devices, e.g. filters F23K5/18)	F23K5/16	F23K5/16		223
F23K5/18	10	Cleaning or purging devices, e.g. filters	F23K5/18	F23K5/18		462
F23K5/20	10	Preheating devices (in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44)	F23K5/20	F23K5/20		715
F23K5/22	10	Vaporising devices (in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44)	F23K5/22	F23K5/22		605
F23K2200/00	7	Pretreatment and supply of solid fuel	CPCONLY	F23K2200/00		16
F23K2201/00	7	Pretreatment of solid fuel	CPCONLY	F23K2201/00		15
F23K2201/10	8	Pulverizing	CPCONLY	F23K2201/10		333
F23K2201/1003	9	Processes to make pulverulent fuels	CPCONLY	F23K2201/1003		134
F23K2201/1006	9	Mills adapted for use with furnaces	CPCONLY	F23K2201/1006		406
F23K2201/101	9	to a specific particle size	CPCONLY	F23K2201/101		68
F23K2201/103	9	with hot gas supply	CPCONLY	F23K2201/103		101
F23K2201/20	8	Drying	CPCONLY	F23K2201/20		294
F23K2201/30	8	Separating	CPCONLY	F23K2201/30		259
F23K2201/50	8	Blending	CPCONLY	F23K2201/50		62
F23K2201/501	9	with other fuels or combustible waste	CPCONLY	F23K2201/501		162
F23K2201/503	9	with non-combustible liquids to prepare slurries	CPCONLY	F23K2201/503		28
F23K2201/505	9	with additives	CPCONLY	F23K2201/505		140
F23K2203/00	7	Feeding arrangements	CPCONLY	F23K2203/00		8
F23K2203/002	8	Feeding devices for steam boilers, e.g. in locomotives	CPCONLY	F23K2203/002		622
F23K2203/004	8	Feeding devices with reciprocating members	CPCONLY	F23K2203/004		247
F23K2203/006	8	Fuel distribution and transport systems for pulverulent fuel	CPCONLY	F23K2203/006		362
F23K2203/008	8	Feeding devices for pulverulent fuel	CPCONLY	F23K2203/008		647
F23K2203/10	8	Supply line fittings	CPCONLY	F23K2203/10		91
F23K2203/101	9	Wear protection devices	CPCONLY	F23K2203/101		27
F23K2203/102	9	Flashback safety, e.g. inertizing devices	CPCONLY	F23K2203/102		72
F23K2203/103	9	Storage devices	CPCONLY	F23K2203/103		166
F23K2203/104	9	Metering devices	CPCONLY	F23K2203/104		166
F23K2203/105	9	Flow splitting devices to feed a plurality of burners	CPCONLY	F23K2203/105		61
F23K2203/20	8	Feeding/conveying devices	CPCONLY	F23K2203/20		173
F23K2203/201	9	using pneumatic means	CPCONLY	F23K2203/201		326
F23K2203/202	9	using screws	CPCONLY	F23K2203/202		423
F23K2203/203	9	using pistons or rams	CPCONLY	F23K2203/203		66
F23K2300/00	7	Pretreatment and supply of liquid fuel	CPCONLY	F23K2300/00		1
F23K2300/10	8	Pretreatment	CPCONLY	F23K2300/10		29
F23K2300/101	9	Application of magnetism or electricity	CPCONLY	F23K2300/101		93
F23K2300/103	9	Mixing with other fluids	CPCONLY	F23K2300/103		59
F23K2300/20	8	Supply line arrangements	CPCONLY	F23K2300/20		56
F23K2300/201	9	Pumps	CPCONLY	F23K2300/201		47
F23K2300/202	9	Filtering	CPCONLY	F23K2300/202		39
F23K2300/203	9	Purging	CPCONLY	F23K2300/203		46
F23K2300/204	9	Preheating	CPCONLY	F23K2300/204		72
F23K2300/205	9	Vaporising	CPCONLY	F23K2300/205		62
F23K2300/206	9	Control devices	CPCONLY	F23K2300/206		116
F23K2400/00	7	Pretreatment and supply of gaseous fuel	CPCONLY	F23K2400/00		4
F23K2400/10	8	Pretreatment	CPCONLY	F23K2400/10		157
F23K2400/20	8	Supply line arrangements	CPCONLY	F23K2400/20		98
F23K2400/201	9	Control devices	CPCONLY	F23K2400/201		207
F23K2900/00	7	Special features of, or arrangements for fuel supplies	CPCONLY	F23K2900/00		7
F23K2900/00001	8	Treating the fuel, either liquid or gaseous, with sound waves to enhance fuel properties	CPCONLY	F23K2900/00001		7
F23K2900/00002	8	Treating the fuel, either liquid or gaseous, with far-infrared radiations [FIR] to enhance fuel properties	CPCONLY	F23K2900/00002		4
F23K2900/01001	8	Cleaning solid fuel before combustion to achieve reduced emissions	CPCONLY	F23K2900/01001		19
F23K2900/01002	8	Treating solid fuel with electromagnetic fields before combustion	CPCONLY	F23K2900/01002		10
F23K2900/01003	8	Pulverizing solid fuel in vacuum or a reduced pressure environment	CPCONLY	F23K2900/01003		6
F23K2900/01041	8	Heating by using exhaust gas heat	CPCONLY	F23K2900/01041		101
F23K2900/03001	8	Airlock sections in solid fuel supply lines	CPCONLY	F23K2900/03001		56
F23K2900/05001	8	Control or safety devices in gaseous or liquid fuel supply lines	CPCONLY	F23K2900/05001		436
F23K2900/05002	8	Valves for gaseous fuel supply lines	CPCONLY	F23K2900/05002		301
F23K2900/05003	8	Non-continuous fluid fuel supply	CPCONLY	F23K2900/05003		53
F23K2900/05004	8	Mixing two or more fluid fuels	CPCONLY	F23K2900/05004		94
F23K2900/05081	8	Treating the fuel with catalyst to enhance combustion	CPCONLY	F23K2900/05081		32
F23K2900/05082	8	Removing gaseous substances from liquid fuel line, e.g. oxygen	CPCONLY	F23K2900/05082		81
F23K2900/05083	8	Separating watery fractions from liquid fuel	CPCONLY	F23K2900/05083		22
F23K2900/05084	8	Creating a combustible foam of liquid fuels and air	CPCONLY	F23K2900/05084		7
F23K2900/05141	8	Control or safety devices in liquid fuel supply line	CPCONLY	F23K2900/05141		58
F23K2900/05142	8	Special materials for liquid fuel supply lines	CPCONLY	F23K2900/05142		4
