Cooperative Patent Classification


Version: 2017.08
CPC
COOPERATIVE PATENT CLASSIFICATION
F23N
REGULATING OR CONTROLLING COMBUSTION (control devices specially adapted for fluidised-bed combustion apparatus F23C 10/28; condition responsive controls for regulating combustion in domestic stoves with open fires for solid fuel F24B 1/187) [2017-05]
F23N 1/00
Regulating fuel supply [2013-01]
F23N 1/002
.
{using electronic means (F23N 1/04 - F23N 1/10 take precedence)} [2016-05]
F23N 1/005
.
{using electrical or electromechanical means (F23N 1/04 - F23N 1/10 take precedence)} [2016-05]
F23N 1/007
.
{using mechanical means (F23N 1/04 - F23N 1/10 take precedence)} [2016-05]
F23N 1/02
.
conjointly with air supply [2013-01]
F23N 1/022
. .
{using electronic means} [2013-01]
F23N 1/025
. .
{using electrical or electromechanical means} [2013-01]
F23N 1/027
. .
{using mechanical means} [2013-01]
F23N 1/04
.
conjointly with air supply and with draught [2013-01]
F23N 1/042
. .
{using electronic means} [2013-01]
F23N 1/045
. .
{using electrical or electromechanical means} [2013-01]
F23N 1/047
. .
{using mechanical means} [2013-01]
F23N 1/06
.
conjointly with draught [2013-01]
F23N 1/062
. .
{using electronic means} [2013-01]
F23N 1/065
. .
{using electrical or electromechanical means} [2013-01]
F23N 1/067
. .
{using mechanical means} [2013-01]
F23N 1/08
.
conjointly with another medium, e.g. boiler water [2013-01]
F23N 1/082
. .
{using electronic means} [2013-01]
F23N 1/085
. .
{using electrical or electromechanical means} [2013-01]
F23N 1/087
. .
{using mechanical means} [2013-01]
F23N 1/10
. .
and with air supply or draught [2013-01]
F23N 1/102
. . .
{using electronic means} [2013-01]
F23N 1/105
. . .
{using electrical or electromechanical means} [2013-01]
F23N 1/107
. . .
{using mechanical means} [2013-01]
F23N 3/00
Regulating air supply or draught (conjointly with fuel supply F23N 1/00) [2013-01]
F23N 3/002
.
{using electronic means (F23N 3/02 - F23N 3/08 take precedence)} [2016-05]
F23N 3/005
.
{using electrical or electromechanical means (F23N 3/02 - F23N 3/08 take precedence)} [2016-05]
F23N 3/007
.
{using mechanical means (F23N 3/02 - F23N 3/08 take precedence)} [2016-05]
F23N 3/02
.
Regulating draught by direct pressure operation of single valves or dampers [2013-01]
F23N 3/04
.
by operation of single valves or dampers by temperature sensitive elements [2013-01]
F23N 3/042
. .
{using electronic means} [2013-01]
F23N 3/045
. .
{using electrical or electromechanical means} [2013-01]
F23N 3/047
. .
{using mechanical means} [2013-01]
F23N 3/06
.
by conjoint operation of two or more valves or dampers (F23N 3/08 takes precedence) [2013-01]
F23N 3/065
. .
{using mechanical means} [2013-01]
F23N 3/08
.
by power-assisted systems [2013-01]
F23N 3/082
. .
{using electronic means} [2013-01]
F23N 3/085
. .
{using electrical or electromechanical means} [2013-01]
F23N 3/087
. .
{using mechanical means} [2013-01]
F23N 5/00
Systems for controlling combustion (F23N 1/00, F23N 3/00 take precedence) [2013-01]
F23N 5/003
.
{using detectors sensitive to combustion gas properties (F23N 5/02, F23N 5/18 - F23N 5/26 take precedence)} [2016-05]
F23N 5/006
. .
{the detector being sensitive to oxygen} [2013-01]
F23N 5/02
.
using devices responsive to thermal changes or to thermal expansion of a medium [2013-01]
F23N 5/022
. .
{using electronic means (F23N 5/04 - F23N 5/14 take precedence)} [2016-05]
F23N 5/025
. .
{using electrical or electromechanical means (F23N 5/04 - F23N 5/14 take precedence)} [2016-05]
F23N 5/027
. .
{using mechanical means (F23N 5/04 - F23N 5/14 take precedence)} [2016-05]
F23N 5/04
. .
using bimetallic elements [2013-01]
F23N 5/042
. . .
{using electronic means} [2013-01]
F23N 5/045
. . .
{using electrical or electromechanical means} [2013-01]
F23N 5/047
. . .
{using mechanical means} [2013-01]
F23N 5/06
. .
using bellows; using diaphragms [2013-01]
F23N 5/062
. . .
{using electronic means} [2013-01]
F23N 5/065
. . .
{using electrical or electromechanical means} [2013-01]
F23N 5/067
. . .
{using mechanical means} [2013-01]
F23N 5/08
. .
using light-sensitive elements [2013-01]
F23N 5/082
. . .
{using electronic means} [2013-01]
F23N 5/085
. . .
{using electrical or electromechanical means} [2013-01]
F23N 5/087
. . .
{using mechanical means} [2013-01]
F23N 5/10
. .
using thermocouples [2013-01]
F23N 5/102
. . .
{using electronic means} [2013-01]
F23N 5/105
. . .
{using electrical or electromechanical means} [2013-01]
F23N 5/107
. . .
{using mechanical means, e.g. safety valves} [2016-08]
F23N 5/12
. .
using ionisation-sensitive elements, i.e. flame rods {(testing of other ignition means, e.g. flame F02P 17/12; analysing gases by investigating the ionisation by using heat G01N 27/626)} [2013-01]
F23N 5/123
. . .
{using electronic means} [2013-01]
F23N 5/126
. . .
{using electrical or electromechanical means} [2013-01]
F23N 5/14
. .
using thermo-sensitive resistors [2013-01]
F23N 5/143
. . .
{using electronic means} [2013-01]
F23N 5/146
. . .
{using electrical or electromechanical means} [2013-01]
F23N 5/16
.
using noise-sensitive detectors [2013-01]
F23N 2005/165
. .
{with ultrasonic means} [2013-01]
F23N 5/18
.
using detectors sensitive to rate of flow of air or fuel [2013-01]
F23N 2005/181
. .
{using detectors sensitive to rate of flow of air} [2013-01]
F23N 2005/182
. . .
{Air flow switch} [2013-01]
F23N 5/184
. .
{using electronic means} [2013-01]
F23N 2005/185
. .
{using detectors sensitive to rate of flow of fuel} [2013-01]
F23N 5/187
. .
{using electrical or electromechanical means} [2013-01]
F23N 5/188
. .
{using mechanical means} [2013-01]
F23N 5/20
.
with a time programme acting through electrical means, e.g. using time-delay relays [2013-01]
F23N 5/203
. .
{using electronic means} [2013-01]
F23N 5/206
. .
{using electrical or electromechanical means} [2013-01]
F23N 5/22
.
with a time programme acting through mechanical means, e.g. using cams [2013-01]
F23N 5/24
.
Preventing development of abnormal or undesired conditions, i.e. safety arrangements (F23N 5/02 - F23N 5/18 take precedence) [2016-05]
F23N 5/242
. .
{using electronic means} [2013-01]
F23N 5/245
. .
{using electrical or electromechanical means} [2013-01]
F23N 5/247
. .
{using mechanical means} [2013-01]
F23N 5/26
.
Details [2013-01]
F23N 5/265
. .
{using electronic means} [2013-01]
F23N 2021/00
Pretreatment or prehandling [2013-01]
F23N 2021/02
.
using belt conveyors [2016-05]
F23N 2021/04
.
Preheating liquid fuel [2013-01]
F23N 2021/06
.
Preheating gaseous fuel [2013-01]
F23N 2021/08
.
Preheating the air [2013-01]
F23N 2021/10
.
Analysing fuel properties, e.g. density, calorific [2013-01]
F23N 2021/12
.
Recycling exhaust gases [2013-01]
F23N 2023/00
Signal processing; Details thereof [2013-01]
F23N 2023/02
.
Multiplex transmission [2013-01]
F23N 2023/04
.
Memory [2013-01]
F23N 2023/06
.
Sampling [2013-01]
F23N 2023/08
.
Microprocessor; Microcomputer [2013-01]
F23N 2023/10
.
Correlation [2013-01]
F23N 2023/12
.
Integration [2013-01]
F23N 2023/14
.
Differentiation [2013-01]
F23N 2023/16
.
Measuring bridge [2013-01]
F23N 2023/18
.
Chopper [2013-01]
F23N 2023/20
.
Opto-coupler [2013-01]
F23N 2023/22
.
Timing network [2013-01]
F23N 2023/24
. .
with bimetallic elements [2013-01]
F23N 2023/26
. .
with capacitors [2013-01]
F23N 2023/28
. .
with more than one timing element [2013-01]
F23N 2023/30
.
Switches [2013-01]
F23N 2023/32
. .
Reed switches [2013-01]
F23N 2023/34
.
with feedforward processing [2013-01]
F23N 2023/36
.
PID signal processing [2013-01]
F23N 2023/38
.
Remote control [2013-01]
F23N 2023/40
.
Simulation [2013-01]
F23N 2023/42
.
Function generator [2013-01]
F23N 2023/44
.
Optimum control [2013-01]
F23N 2023/46
.
Identification [2013-01]
F23N 2023/48
.
Learning / Adaptive control [2013-01]
F23N 2023/50
.
Human control [2013-01]
F23N 2023/52
.
Fuzzy logic [2013-01]
F23N 2023/54
.
Recording [2013-01]
F23N 2025/00
Measuring [2013-01]
F23N 2025/02
.
filling height in burners [2013-01]
F23N 2025/04
.
pressure [2013-01]
F23N 2025/06
. .
for determining flow [2013-01]
F23N 2025/08
.
temperature [2013-01]
F23N 2025/10
. .
stack temperature [2013-01]
F23N 2025/12
. .
room temperature [2013-01]
F23N 2025/13
. .
outdoor temperature [2013-01]
F23N 2025/14
. .
Ambient temperature around burners [2013-01]
F23N 2025/16
. .
burner temperature [2013-01]
F23N 2025/18
. .
feedwater temperature [2013-01]
F23N 2025/19
. .
outlet temperature water heat-exchanger [2013-01]
F23N 2025/20
. .
entrant temperature [2013-01]
F23N 2025/21
. .
outlet temperature [2013-01]
F23N 2025/22
.
heat losses [2013-01]
F23N 2025/24
. .
indicated in an amount of money [2013-01]
F23N 2025/26
.
humidity [2013-01]
F23N 2025/30
. .
measuring lambda [2013-01]
F23N 2027/00
Ignition or checking [2017-05]
F23N 2027/02
.
Starting or ignition cycles [2013-01]
F23N 2027/04
.
Prepurge [2013-01]
F23N 2027/06
.
Postpurge [2013-01]
F23N 2027/08
.
Hold fire apparatus [2013-01]
F23N 2027/10
.
Sequential burner running [2013-01]
F23N 2027/12
.
Burner simulation or checking [2013-01]
F23N 2027/14
. .
Flame simulation [2013-01]
F23N 2027/16
. .
Checking components, e.g. electronic [2013-01]
F23N 2027/18
.
Applying test signals, e.g. periodic [2013-01]
F23N 2027/20
.
Calibrating devices [2013-01]
F23N 2027/22
.
Pilot burners (ignition circuits therefor F23N 2027/32) [2013-01]
F23N 2027/24
. .
the pilot burner not burning continuously [2013-01]
F23N 2027/26
. .
comprising two or more distinct pilot burners [2013-01]
F23N 2027/28
.
Ignition circuits [2013-01]
F23N 2027/30
. .
for pilot burners [2013-01]
F23N 2027/32
.
Igniting for a predetermined number of cycles [2013-01]
F23N 2027/34
.
Continuously applied ignition cycles [2013-01]
F23N 2027/36
.
Spark ignition, e.g. by means of a high voltage [2013-01]
F23N 2027/38
.
Electrical resistance ignition [2013-01]
F23N 2027/40
.
Catalytic ignition [2013-01]
F23N 2027/42
.
Ceramic glow ignition [2013-01]
F23N 2029/00
Flame sensors [2013-01]
F23N 2029/02
.
Pilot flame sensors [2013-01]
F23N 2029/04
.
sensitive to the colour of flames [2013-01]
F23N 2029/06
.
with periodical shutters; Modulation signals [2013-01]
F23N 2029/08
.
detecting flame flicker [2013-01]
F23N 2029/10
.
comprising application of periodical fuel flow fluctuations [2013-01]
F23N 2029/12
.
with flame rectification current detecting means [2013-01]
F23N 2029/14
.
using two or more different types of flame sensor [2013-01]
F23N 2029/16
.
using two or more of the same types of flame sensor [2013-01]
F23N 2029/18
.
Flame sensor cooling means [2013-01]
F23N 2029/20
.
Camera viewing [2013-01]
F23N 2029/22
.
the sensor's sensitivity being variable [2017-05]
F23N 2031/00
Fail safe [2013-01]
F23N 2031/02
.
using electric energy accumulators [2013-01]
F23N 2031/04
.
for electrical power failures [2013-01]
F23N 2031/06
.
for flame failures [2013-01]
F23N 2031/08
. .
for pilot flame failures [2013-01]
F23N 2031/10
.
for component failures [2013-01]
F23N 2031/12
.
for ignition failures [2013-01]
F23N 2031/14
.
for earthquakes [2013-01]
F23N 2031/16
.
using melting materials or shape memory alloys [2013-01]
F23N 2031/18
.
Detecting fluid leaks [2013-01]
F23N 2031/20
.
Warning devices [2013-01]
F23N 2031/22
. .
using warning lamps [2013-01]
F23N 2031/24
.
Freezing [2013-01]
F23N 2031/26
.
for clogging air inlet [2013-01]
F23N 2031/28
.
preventing flash-back or blow-back [2013-01]
F23N 2031/30
.
Representation of working time [2013-01]
F23N 2033/00
Ventilators [2013-01]
F23N 2033/02
.
in stacks [2013-01]
F23N 2033/04
. .
with variable speed [2013-01]
F23N 2033/06
.
at the air intake [2013-01]
F23N 2033/08
. .
with variable speed [2013-01]
F23N 2033/10
.
forcing air through heat exchangers [2013-01]
F23N 2035/00
Valves, nozzles or pumps [2013-01]
F23N 2035/02
.
Air or combustion gas valves or dampers [2013-01]
F23N 2035/04
. .
in stacks [2013-01]
F23N 2035/06
. .
at the air intake [2013-01]
F23N 2035/08
. .
used with heat exchanges [2013-01]
F23N 2035/10
. .
power assisted, e.g. using electric motors [2013-01]
F23N 2035/12
.
Fuel valves [2013-01]
F23N 2035/14
. .
electromagnetically operated [2013-01]
F23N 2035/16
. .
variable flow or proportional valves [2013-01]
F23N 2035/18
. .
Groups of two or more valves [2013-01]
F23N 2035/20
. .
Membrane valves [2013-01]
F23N 2035/22
. .
cooperating with magnets [2013-01]
F23N 2035/24
. .
Valve details [2013-01]
F23N 2035/26
.
Fuel nozzles [2013-01]
F23N 2035/28
. .
Spray fuel nozzles [2013-01]
F23N 2035/30
.
Pumps [2013-01]
F23N 2037/00
Controlling (F23N 5/00 takes precedence) [2013-01]
F23N 2037/02
.
two or more burners [2013-01]
F23N 2037/04
.
at two or more different localities [2013-01]
F23N 2037/06
.
two predeterming temperatures, e.g. day-night [2013-01]
F23N 2037/08
.
two or more different types of fuel simultaneously [2013-01]
F23N 2037/10
.
High or low fire [2013-01]
F23N 2037/12
.
catalytic burners [2013-01]
F23N 2037/14
.
burners with gasification or vaporizer elements [2013-01]
F23N 2037/16
.
secondary air [2013-01]
F23N 2037/18
.
fluidized bed burners [2013-01]
F23N 2037/20
.
one or more bypass conduits [2013-01]
F23N 2037/22
.
water injection [2013-01]
F23N 2037/24
.
height of burner [2013-01]
F23N 2037/26
. .
oxygen-air ratio [2013-01]
F23N 2037/28
. .
oxygen as pure oxydant [2013-01]
F23N 2037/30
. .
matrix burners [2013-01]
F23N 2037/32
. .
Nox [2013-01]
F23N 2039/00
Fuels [2013-01]
F23N 2039/02
.
Solid fuels [2013-01]
F23N 2039/04
.
Gaseous fuels [2013-01]
F23N 2039/06
.
Liquid fuels [2013-01]
F23N 2041/00
Applications [2013-01]
F23N 2041/02
.
Space-heating [2013-01]
F23N 2041/04
.
Heating water [2013-01]
F23N 2041/06
.
Space-heating and heating water [2013-01]
F23N 2041/08
.
Household apparatus [2013-01]
F23N 2041/10
.
Generating vapour [2013-01]
F23N 2041/11
.
Torches [2013-01]
F23N 2041/12
.
Stack-torches [2013-01]
F23N 2041/14
.
Vehicle heating, the heat being derived otherwise than from the propulsion plant [2013-01]
F23N 2041/16
.
Spectrometer burners [2013-01]
F23N 2041/18
.
Incinerating apparatus [2013-01]
F23N 2041/20
.
Gas turbines [2013-01]
F23N 2041/22
.
Absorption refrigerator [2013-01]
F23N 2900/00
Special features of, or arrangements for controlling combustion [2013-01]
F23N 2900/01001
.
Micro Electro Mechanical Systems [MEMS] for controlling fuel supply to burners [2013-01]
F23N 2900/01002
.
Electromagnetically operated fuel valves with a single solenoid controlling two or more cores [2013-01]
F23N 2900/05001
.
Measuring CO content in flue gas [2013-01]
F23N 2900/05002
.
Measuring CO2 content in flue gas [2013-01]
F23N 2900/05003
.
Measuring NOx content in flue gas [2013-01]
F23N 2900/05004
.
Details of components, e.g. connecting adaptors [2013-01]
F23N 2900/05005
.
Mounting arrangements for sensing, detecting or measuring devices [2013-01]
F23N 2900/05006
.
Controlling systems using neuronal networks [2013-01]
F23N 2900/05101
.
Connections between thermocouple and magnetic valves, e.g. by plug and socket connectors [2013-01]
F23N 2900/05181
.
Controlling air to fuel ratio by using a single differential pressure detector [2013-01]