F-Term-List

F23N1/02-1/06,105;5/18-5/18,101@Z

AA00
PURPOSES

AA01

AA02

AA03

AA04

AA05

AA06

AA07

AA08

AA09

AA10

. Followability or matching

. Low oxygen combustion

. responding to variance on fuel calorific value e.g. calorie conversion

. Fuel leakage prevention

. . Leakage of fire extinguishment

. . Valve leakage

. . Excessively high outflow e.g. gas line fall-out

. Blowing air trouble prevention

. . detecting failure of wind-pressure switches

. . having delay elements

AB00
REGULATION OR CONTROL SYSTEMS

AB01

AB02

AB03

AB05

AB06

. mechanical

. electrical

. . with signal processing

. Manual types

. Automatic types

AC00
REGULATION OR CONTROL TIMING

AC01

AC02

AC03

AC04

AC05

AC07

AC08

AC09

. during starting e.g. from ignition to stable conditions

. during combustion

. . during acceleration e.g. low to high

. . During deceleration e.g. high to low

. during stopping e.g. from normal conditions to fire-extinguishing

. during abnormalities

. . Power failure

. . Strong wind or explosion

BA00
OBJECTS OF DETECTION, FUEL

BA01

BA02

BA03

BA04

BA05

BA06

BA07

. Fuel pressures or quantities

. . Specific pressures or quantities

. . . Excessively low minimum values

. . . Excessively high or maximum values

. Fuel temperature

. Characteristics e.g. viscosity or calorie

. . Component e.g. sulphur

BB00
OBJECTS OF DETECTION, COMBUSTION AIR

BB01

BB02

BB03

BB04

BB05

BB07

. Air pressures or quantities

. . Specific pressures or quantities

. . . Abnormal low level demand

. . . Abnormal high level allowance

. Air temperature for combustion only

. Combustion exhaust gas pressures or quantities

BC00
DETECTION MEANS

BC01

BC02

BC03

BC04

BC05

BC06

BC07

BC09

. Diaphragm piston

. Pressure plates e.g. wind-pressure plates

. Total pressure or static pressure measurement e.g. pitot tube

. Moving or rotating bodies

. Measurement of cooling quantities e.g. cooling of thermistors

. Measurement of the number of revolutions e.g. the number of motor revolutions

. Measurement of opening and closing of valves or dampers

. Specification of detecting position

CA00
OBJECTS OF REGULATION OR CONTROL

CA01

CA02

CA03

CA04

CA05

CA06

CA07

CA08

CA09

. Combustion

. . The number of operating burners

. . Fuel

. . . Subsequent air adjustment

. . Air

. . . Subsequent fuel regulation

. . Igniters or pilot burners

. . Burner control members e.g. position or swirler

. . Others e.g. exhaust gas or water

CB00
MEANS OF REGULATION OR CONTROL

CB01

CB02

CB03

CB04

CB05

. Links

. Cams

. Fans

. Pumps

. Valves or dampers

CC00
FORMS OF REGULATION OR CONTROL

CC01

CC02

CC03

CC04

. continuous e.g. proportional

. stepwise e.g. from small medium to large

. . Start or ON e.g. from 0 to 1

. . Stop or OFF e.g. from 1 to 0

DA00
FUEL TYPES

DA01

DA02

DA03

DA04

DA05

DA06

DA08

DA09

. multiple

. Fluid

. . Gas

. . Liquid

. Solid

. . Powder

. containing additive e.g. coal water mixture emulsion

. Waste of lower grade e.g. waste oil waste material or blast furnace gas

F23N5/00-5/00@Z

EA00
APPLICATION OF COMBUSTION APPARATUSES

EA01

EA02

EA03

EA05

EA06

EA07

EA08

EA09

EA10

. Hot air heaters

. Hot water suppliers or bath boilers

. Cooking appliance

. Drying apparatuses

. Hot blast stoves

. Boilers e.g. steam generators

. Solid heating furnace e.g. metal heating furnace

. Cracking furnaces e.g. coke ovens

. Incinerators

FA00
OBJECTS OF DETECTION

FA01

FA02

FA03

FA04

FA05

FA06

FA07

FA08

FA09

FA10

. Temperature or calorie

. Combustion conditions

. Component of combustion exhaust gas

. . Oxygen or O2

. . Carbon monoxide or CO

. . Carbon dioxide or CO2

. . Nitrogen oxide or NOx

. . Sulphur oxide or SOx

. Furnace pressures

. Fuel components or calorific values

FB00
CONTROLLED OBJECT

FB01

FB02

FB03

FB04

FB05

FB08

FB10

. Combustion quantities regulation

. . The number of operating burners

. . Air/fuel ratio

. . Air quantities or draught quantities

. . Fuel quantities

. . Evaporative or circulating exhaust gas

. Ignition or fire-extinguishing control

FC00
CONTROL ELEMENTS

FC01

FC04

FC05

FC06

FC07

FC10

. Control member of burners

. Blowers

. Fuel pumps

. Pre-heaters or carburettors

. Coal pulverises

. Igniters

GA00
FUEL TYPES

GA01

GA02

GA03

GA04

GA05

GA06

. multiple

. Fluid

. . Gas

. . Liquid

. Solid

. . Powder

HA00
OTHER CHARACTERISTICS

HA01

HA02

HA03

HA04

. Remote control

. Power supply

. Change or switching of control systems

. Arrangement or combination of devices

F23N3/00-3/08

JA00
PURPOSES

JA01

JA02

JA03

JA04

JA05

JA06

JA07

JA08

JA09

JA10

. Air quantities regulation during ignition

. Air quantities regulation during fire-extinguishing

. Pre-purge or post-purge

. Keeping ventilation constant

. Keeping exhaust constant

. Regulation or matching of air/fuel ratio

. Suppression of exhaust component abnormalities e.g. NOx

. Regulation of in-furnace pressure

. Load regulation e.g. temperature of articles to be heated

. Regulation of distribution ratio e.g. primary and secondary air ratio

JA11

JA12

JA13

. Responding to drive frequency e.g. 50Hz and 60Hz

. Responding to abnormal conditions e.g. failure or power failure

. Responding to change of fuel types

KA00
APPLICATIONS OF BURNERS

KA01

KA02

KA03

KA04

KA05

KA06

KA07

. Industrial boilers

. Incinerators

. Metal heating furnaces

. Stoves or heaters

. Water heaters or bath boilers

. Cooking appliances

. Others (A free word shall be assigned.)

KB00
BURNER TYPES

KB01

KB02

KB03

KB04

KB05

KB06

KB07

. Solid-fuel burners

. Gaseous-fuel burners

. Liquid-fuel burners

. . with evaporating heaters

. . pot type

. . atomising airflow type

. . ultrasonic wave type

LA00
OBJECTS OF DETECTION

LA01

LA02

LA03

LA05

LA06

LA08

LA09

LA10

. Temperature of air or exhaust gas

. Quantities or pressure of air or exhaust gas

. Air or exhaust gas components e.g. concentration of O2 or NOx

. Opening degree or opening or closing of dampers or valves

. Revolution number of fans

. Combustion conditions e.g. incomplete combustion or presence or absence of flame

. In-furnace pressure

. Conditions of articles to be heated e.g. hot water temperature or vapour pressure

MA00
AIR SUPPLY TYPES

MA01

MA02

MA04

MA05

MA06

MA07

MA08

MA09

. Natural draught

. Switching between natural drafting and forced drafting

. Multi-stage supply of air e.g. primary or secondary air supply

. preheating air

. having by-pass draught ducts

. recirculating exhaust gas

. having a plurality of combustion chambers

. having a plurality of fans

NA00
AIR CONTROL SYSTEM

NA01

NA02

NA03

NA04

NA05

NA07

NA08

NA10

. Opening or closing control of dampers or valves

. Step control of opening degree of dampers or valves e.g. wide medium or narrow

. On or off control of fans

. Control of the number of fan revolutions

. . Step control of the number of fan revolutions e.g. high <- -> medium <- -> low

. Microcomputer control

. Timer control

. Securing minimum flow rate

F23N5/24;5/24@Z

PA00
PURPOSES OF SPECIAL SAFETY DEVICES

PA01

PA02

PA03

PA04

PA05

PA06

PA07

PA08

PA09

PA10

. Malfunction prevention

. . Malfunction prevention by noise

. Prevention of erroneous operations

. Equipment cooling

. Abnormal overheat prevention or abnormal overpressure prevention e.g. gas cylinders

. Responding to water infiltration or water leakage

. Defrosting or dewing prevention

. Emergency fire-extinguishing

. . by shut-off valve

. Others (Free word)

PB00
APPLICATIONS OF SPECIAL SAFETY DEVICES

PB01

PB02

PB03

PB04

PB05

PB06

PB08

PB09

PB10

. Hot water suppliers e.g. instantaneous water heaters or water boilers

. Bath boilers

. Cooking appliances or gas cooking stoves

. Space heaters or stoves

. Industrial boilers

. Others (Free word)

. for gaseous-fuel burners

. for liquid-fuel burners

. for solid-fuel burners

PC00
SPECIAL SAFETY DEVICES AS SAFETY CONTROL MEANS

PC01

PC02

PC03

PC04

PC06

PC07

. Fuel shut-off valves

. . Cocks

. . Lift valves

. Thermo-couple circuit break

. Switching between automatic or manual operation

. Reset devices or locking devices

F23N5/24,102;5/24,102@A

QA00
SAFETY DEVICES FOR GAS LEAKAGE

QA01

QA02

QA03

QA04

QA05

QA06

QA07

QA08

. using semiconductor sensors

. using a plurality of gas leakage sensors

. . Centralised control

. Explosion prevention e.g. locking of electric sparks or igniters

. Malfunction prevention or responding to failure

. . by conducting inspection

. . by timers or delay means

. improving detection accuracy e.g. temperature compensation

QB00
SAFETY CONTROL MEANS FOR GAS LEAKAGE

QB01

QB02

QB03

QB04

QB05

QB07

QB08

QB09

QB10

. Gas shut-off valves

. . Cocks

. . Lift valves

. Ventilation

. Alarms or displays

. responding to abnormalities other than gas leakage

. . Power failure

. . Earthquake

. . Abnormal combustion e.g. flameout

F23N5/24,104

RA00
SAFETY DEVICES FOR AIR SUPPLYING SYSTEMS OR EXHAUST SYSTEMS

RA01

RA02

RA03

RA04

RA05

RA07

RA08

RA09

. abnormalities of exhaust systems e.g. head wind or clogging of exhaust pipes

. . Connection failure of exhaust pipes

. abnormalities of supplying systems e.g. filter clogging

. abnormalities of fans e.g. failure or stop

. abnormalities of dampers e.g. failure of opening and closing of dampers

. Air pressure detection

. Exhaust temperature detection

. Equipment temperature e.g. exhaust pipes

F23N5/24,106;5/24,106@A;5/24,106@Z

SA00
PURPOSES OF COMBUSTION SAFETY DEVICES

SA01

SA02

SA03

SA04

SA05

SA06

SA07

SA08

. improvement in detection accuracy

. . Switching of detection levels

. Malfunction prevention or fail-safe

. Explosion prevention

. Fire extinguishing acceleration or emergency fire extinguishing

. Gas leakage prevention e.g. during flameout or ignition failure

. Ignition failure prevention or ignition ensuring

. Flameout prevention or blow-off prevention

SB00
REGULATION TIMING OF COMBUSTION SAFETY DEVICES

SB01

SB02

SB03

SB04

SB05

SB06

SB07

SB08

SB09

SB10

. during starting e.g. ignition or pre-purge timing

. during restarting

. during combustion level switching e.g. strong <-> weak

. during weak combustion

. during load change

. during stopping e.g. at extinguishing or post-purge timing

. during abnormalities

. . during abnormal combustion e.g. during oxygen deficiency or incomplete combustion

. . . during flameout

. . during abnormal heating

SC00
DETECTION SENSORS OR APPLICATIONS OF COMBUSTION SAFETY DEVICES

SC01

SC02

SC03

SC04

SC06

SC08

SC09

SC10

. Flame detection

. . Flame rod

. . Thermo-couples

. Temperature sensing e.g. equipment temperature

. using a plurality of sensors

. for gaseous-fuel burner

. for liquid-fuel burner

. for solid-fuel burner e.g. coal dust coal or waste

F23N5/24,107-5/24,107@Z;5/24,108-5/24,108@Z

TA00
PURPOSES OF ABNORMAL COMBUSTION SAFETY DEVICES

TA01

TA02

TA03

TA04

TA05

TA06

TA07

TA09

. improvement in detection accuracy or malfunction prevention

. . Switching of detection level

. . by timers or delay means

. . by covers or windshields

. . by shapes of burner ports e.g. burner ports easy to lift

. . by stabilization of sensor temperature

. . Malfunction preventing at the beginning of ignition

. Responding to gas type conversion

TB00
MAJOR IMPROVEMENTS OR APPLICATIONS OF ABNORMAL COMBUSTION SAFETY DEVICES

TB01

TB02

TB03

TB04

TB06

TB07

TB08

TB09

TB10

. improvement in sensor shapes

. improvement in sensor materials

. improvement in sensor arrangement or mounting

. improvement in circuit configurations

. for gaseous fuel burners

. . used for gas water heaters

. for liquid fuel burners

. . used for oil stoves

. for solid fuel burners

F23N5/24,107;5/24,107@Z;5/24,108;5/24,108@Z

TC00
DETECTION SENSORS OR OBJECTS OF DETECTION OF ABNORMAL COMBUSTION SAFETY DEVICES

TC01

TC02

TC03

TC04

TC05

TC07

TC08

TC09

TC10

. Semiconductor sensors for detection of combustion gas components

. . Partial pressure sensors or oxygen concentration cells

. Flame rods

. Optical sensors

. Thermo-couples

. Oxygen concentration detection

. Carbon monoxide or CO concentration detection

. Smoke detection

. Temperature sensing detection

F23N5/24,107-5/24,107@B

TD00
TYPES OF OXYGEN CONCENTRATION CELLS FOR DETECTION OF EXHAUST GAS COMPONENTS

TD01

TD02

TD03

TD04

TD06

TD07

TD08

. Cylindrical sensors

. . sensors with exhaust gas running through cylinders

. Plate-shaped sensors

. Curved sensors

. having constant burners or constant oxygen deficient burners

. having covers or windshields

. having sensor preheating or temperature rising means

TE00
OBJECTS OF DETECTION, OXYGEN CONCENTRATION CELLS

TE01

TE02

TE03

TE04

TE05

TE06

TE07

. Oxygen deficiency or incomplete combustion

. . Flame lifting

. Flameout

. Ignition

. Backfire

. Sensor deterioration or damage

. Others (Free word)

F23N5/24,108;5/24,108@A

TF00
OXYGEN DEFICIENCY DETECTION SYSTEMS

TF01

TF02

TF03

TF04

TF06

TF07

. Flame detection of oxygen deficiency detecting burners or pilot burners

. . Isolated flame type burners e.g. primary or secondary flames

. . leading exhaust gas to detecting sections

. Main burner flame detection

. using a plurality of thermo-couples

. using sensors other than thermo-couples

F23N5/24,110-5/24,110@D

UA00
RESPONSE TO POWER FAILURE

UA01

UA02

UA03

UA04

UA05

UA06

UA07

UA08

UA09

UA10

. Continuance of combustion

. . by small quantities supply of fuel

. . . by manual operation

. . by natural draught

. . by auxiliary power supply

. Continued combustion only during instantaneous power failure

. . by batteries

. . by capacitors

. Combustion stopping

. . accelerating combustion of remaining oil

UB00
RESPONSE TO RE-ENERGISATION TIME

UB01

UB02

UB03

UB04

UB05

UB07

UB08

. Automatic reset or automatic re-ignition

. Inhibition of automatic reset or manual reset

. Re-ignition inhibition during a certain time

. . by timers or delay means

. . by detecting lowering of temperature

. performing purge

. giving alarms or displays

F23N5/24,111-5/24,111@Z

VA00
VIBRATION SENSING SAFETY DEVICES

VA01

VA02

VA03

VA04

VA05

VA06

VA07

VA08

. improving sensitivity

. . sensitivity adjustable

. Malfunction preventing

. having reset mechanisms

. Seismographes being reset automatically

. having displays

. Seismographes using spring

. Detection of seismograph operation by magnets or reed switches

VB00
VIBRATION-SENSING SAFETY CONTROL MEANS

VB01

VB02

VB03

VB04

VB05

VB06

VB07

VB08

. Fuel shut-off valves

. . Cocks

. . Lift valves

. . Ball valves

. . Shut-off valves in oil quantities adjusters

. Descent of wicks

. Fire-extinguishing lids or fire-extinguishing boards

. Extinguishant or water

VC00
MAJOR IMPROVEMENT IN VIBRATION SENSING SAFETY DEVICES OR RESPONDING TO ABNORMALITIES

VC01

VC02

VC04

VC06

VC07

VC08

VC09

. improvement in seismograph shapes

. improvement in arrangements or mounting of seismographs

. improvement in circuit configuration

. responding to abnormalities other than earthquake

. . Power failure

. . Gas leakage

. . Abnormal combustion e.g. oxygen deficiency or flameout

F23N5/24,112

WA00
SAFETY DEVICES INTERLOCKED WITH VENTILATION

WA01

WA02

WA03

WA05

WA06

WA07

WA08

WA09

WA10

. Combustion control after confirmation of ventilation operation

. Ventilation control in response to combustion operation

. Synchronous control of combustion and ventilation

. Operation detection of ventilating fans

. . Detection of electric current or voltage change

. Burner operating detection

. . Flame detection e.g. thermo-couple

. . Combustion gas pressure or gas flow detection

. . Operation detection of fuel control parts e.g. gas cocks

F23N5/24,113-5/24,113@Z

XA00
FAILURE OR MALFUNCTION TYPES

XA01

XA02

XA03

XA04

XA05

XA06

XA07

. False fire

. . by leaking light

. Disconnection

. Continuity breakdown short-circuit failure or melting failure

. Connection or wiring failure

. Malfunction by noise

. Microcomputer abnormalities

XB00
FAILURE OR MALFUNCTION PARTS

XB01

XB02

XB03

XB04

XB05

XB06

XB07

XB08

XB09

XB10

. Sensor failure or incorrect action

. . Flame detection sensors

. . . Flame rods

. . Temperature detection sensors

. . . Thermistors

. Circuit element failure or malfunction

. . Failure or incorrect action of relays or mechanical switches

. . Semiconductor elements e.g. transistors or PUTs

. . Comparators

. . Timer or delay means

XC00
SAFETY CONTROL MEANS FOR FAILURE OR MALFUNCTION

XC01

XC02

XC03

XC04

. Failure check during starting

. . Timers or delay means

. giving alarms or displays of failure

. Double failure detection

3K003	Regulation and control of combustion (2)
	F23N1/02 -1/06,105;3/00-5/00@Z;5/18-5/18,101@Z;5/24-5/24,113@Z