This standard standardizes the terminology and nomenclature of internal combustion engines to provide a more accurate understanding in technical discussions, engineering comparisons and the preparation of technical documents. This standard applies to the nomenclature of various engines, vehicle emissions and purification devices. GB/T 8188-2003 Internal Combustion Engine Emissions Terminology and Definitions GB/T8188-2003 Standard Download Decompression Password: www.bzxz.net

This standard replaces GB/T8189:1967 Diesel Engine Emission Terms 3. Compared with GB/TB1881687, this standard has the following main changes: it maintains the standard, expands the scope of application of the standard, modifies and expands the abbreviations of emission terms, and adds the English term index.
This standard is proposed by China Machinery Industry Federation and is under the jurisdiction of National Technical Committee for Standardization of Internal Combustion Engines. The drafting units of this standard are: Shanghai Internal Combustion Engine Research Institute, Shanghai Anzhou Anti-corrosion Co., Ltd. The main drafters of this standard are: Wen Ming, Song Guojun, Wei Luodun, Chen Kuance. GB/T8188—2003
1 Scope
Terms and definitions of internal combustion engine emissions
GD/T8188—2003
Purpose of formulating this standard To standardize the terms and their nomenclature, so as to have a more accurate understanding in technical discussions, engineering comparisons and the preparation of technical documents.
This standard applies to the nomenclature of various engine and vehicle emissions and purification devices. For the sake of simplicity, the wording can be omitted in some occasions. But sometimes, in order to make the meaning clear and easy to understand, it is better to read it as above. 2 Normative references
The clauses in the following documents become clauses of this standard through reference in this standard. For the referenced documents with a date, all subsequent amendments (excluding the internal or revised versions mentioned in the date) are not applicable to this standard. However, the parties to the agreement reached under this standard are encouraged to study whether the latest versions of these documents can be used: For the referenced documents without a date, the latest versions are applicable to this standard, ASTM D323 test method for gas products (special method 3 Auxiliary air system
Air distribution pipe uirdistributilonmanfrold manifold that distributes air in proportion to each exhaust duct: When the manifold is externally supplied, the air supply channel is made of 3.2
Air injection relief valve atrnjection relief valve is usually integrated with the air source to form an air system diverter valve group, which is used to limit the quality and force of the air. 3.3
Air injection pipe air injectinn tnhe valve that extends into the exhaust duct of the non-gas pipe air changer cover to direct the injected air in the air distribution pipe to each exhaust air conditioner.
Air pump steering airpupdfverlerelreA valve that temporarily stops the air from the state air duct, "generally used to prevent engine backfire when the vehicle decelerates. 3.5
Air switch airswilchinywalve
A valve that directs the air from the second effect catalyst supply to the downstream of the second effect catalyst. Mission: The selection can ensure that the catalyst has the best ignition effect, and at the same time protect the effect of the third effect catalyst after warming up. 3. 6
BypassFalye
See 4.4.
Supplementary air valve
A valve that allows the air to flow into the intake manifold for a short time after the throttle valve is actually closed. Note: This valve can prevent the micro-air from being generated before the fuel is generated during the vacuum period in the intake manifold. CB/T Bt88—2003
Pulse air system puls air system
A kind of low pressure pulse that uses non-pneumatic system or output shaft pen to draw outside air into exhaust system to oxidize IC and O. 4 Exhaust treatment system
Ordinary metal catalysts
Base metal catalysts
Active metal catalysts made of various metal catalysts or metal catalysts 4.2
Benzene pyrene (BuP)
Blowing off bkow-ufr
Use airflow or backflow to remove particulate matter Note: This method uses the following metal catalysts instead of the overall type. 4. 4
Bypass valve
A valve used to disconnect the engine's catalytic converter. It is designed to discharge the exhaust gas into the atmosphere. 4.5
Catalysts
A substance that can react chemically with the atmosphere but does not undergo long-term chemical changes with water. It is a compensatory catalyzer that can cause non-toxic and controllable catalytic converters. It can be divided into oxidizing catalyzers (which oxidize HC and CO), reducing catalyzers (which oxidize HC and CO), and the most effective catalyzer (which is used for both catalytic converters and catalysts). See 4.5 for catalyst assembly
.
Catalyst poisoning
When foreign substances such as lead, zinc or sulfur enter the catalyst converter, they act as chemicals to remove new exhaust pollutants, affecting the efficiency of the catalyst:
Catalyst converter
catalystconverler
An assembly of important parts such as the housing, body and chemical materials. Depending on the type of catalyst - oxidation type, reduction type or effective type: the total amount can be slightly reduced H (N), the three emissions can be reduced by 6%, 4. 9
catalytic efficiency
calalyleefticiency
catalyst
catalyst first
a device that can produce non-effective amounts of non-productive chemical reactions. The generation system occurs randomly, 4.11
a device that continuously regenerates the system and burns the captured particles during engine operation. This is recommended for use without regeneration, see .2 for periodic capture oxidation method, 4. 12
Converter efficiencyConverter efficiencyConverter bypassConverter bypassA method of controlling the exhaust gas passing through the converter to protect the converter from excessively high pressure. 4. 12
Diesel particulate matterDiesel particulate matterMainly composed of soot and attached H), S(-NC, P-metal compounds, the mass of this exhaust gas is about 6/4, 15
Release exhaustDtlontuunel
A device for diluting and mixing the exhaust gas of the engine with variable gas to collect latent gas. 4. 16
Dual-bed catalytic system dnal-ratalyststster CB/T8198—2003
A system that uses a catalytic bed and a reducing net to reduce HC, 10 and O2 pollution in the engine non-gas. The two catalytic beds can be packaged in a separate container. 4.17
Emissions correction method (aftertreatment) Emissions corrected lon bethod (with aftertreatment) An emission calculation that uses the results of non-regeneration non-modification test to weight the results of regeneration emission test. 4. 18
Intake throttle inlelirthralule
A system that limits the concentration of the combustion chamber intake to increase the exhaust temperature and initiate the oxidation of particulate matter in the extractor. 4. 19
Mesh filter
Mesh filter
A kind of collector that works by airflow passing through a curved path. The main mechanism of the collector is pressure and expansion. The design is to attach to the mesh or a previously held light surface. The smaller particles will naturally diffuse and move to the surface and be blocked.
Integral particle filter for diesel engine mpnalithicdieselparticnlateFilter is an extrusion type blue Ye-shaped porcelain filter. One end of the chamber channel orifice is sealed by a spacer, but the orifices are small and opposite to each other, so that the exhaust gas flows through the porous channel wall. 4.21
Integral body
Auclear substrate
A monolithic substrate with a detachable structure: 4.22
Noble metal catalyst
The active material should be a standard catalyst composed of precious metals such as platinum, metal, copper or lamp. 4.23
Non-regenerative emission test
Nortregrancralian emission test does not include the entire exhaust efficiency test of the oil engine after the particle plug is regenerated. 4.24
Axidation catalyst is a catalytic agent that can promote the oxidation of HC to water vapor and oxygen, GR/TB18B—2003
Pelleted catalyst is a catalyst carrier in the shape of an egg, a ring, a small circle or a small state. 4.26
Periodically regenerating oxidizer A device that uses external heat such as a heater, burner or other external heat source to temporarily adjust the engine temperature to a temperature high enough to ignite the sediment particles.
Reducing catalyst Earth catalyst
The active material is an earth element such as chlorine or chlorine. 4.28
Reducing catalyst Reducing catalyst A chemical reaction that uses hydrogen (H2) or a compound: H2O as a chemical reaction product to promote the reaction of the catalyst. The reaction product is gas or water. 29
Regeneration regeneration test regenerationemixsiantest The diesel engine discharges the settled particulate matter filter according to the process of cleaning the filter. 4.30
Regeneration emission test regenerationemixsiantest The diesel engine discharges the settled particulate matter filter according to the process of cleaning the filter. 4.31
Regeneration interval regeneration interval The diesel engine discharges the settled particulate matter filter according to the process of cleaning the filter. 4.32
Run-time regenerationemixsiantest The diesel engine discharges the settled particulate matter filter according to the process of cleaning the filter. 4.33
Regeneration catalyst Simullaneous oxldatlonreduetloncatalyst See 4.35.
Space velocity space wekosily
The selected gas flow (m/m3/h) measured under the standard pressure and system (1C9k phase 23T) is divided by the catalyst work product (m3 or) to obtain the space velocity.
Substrate
A unique heat-stable material with no oxidizing effect, embedded or otherwise combined with the active material, there are two actual forms: granular and whole-generation,
Blue efficiency catalyst three-wayelalst
This kind of catalyst can oxidize HC and O and reduce NO, and is a standard catalyst for removing allergens. In order to achieve the maximum conversion effect, the analysis must be carried out within an air ratio range close to the ideal ratio or below the ideal ratio. 4.37
Trapping oxidation system trapnxidlizersystemGET 8188--2003
An emission control system for collecting and oxidizing particulate matter from a diesel engine, 4.35
Regeneration cycle
Flrupregenmuliun ele
Related to the cycle of the regeneration process of a diesel engine particulate filter 4.39
Regeneration trigger signal trlggertoregeneratlon signal for starting the regeneration process. The signal can be used as the exhaust pressure relief, engine master or cumulative management unit. 4. 40
Washcoat
Material added to the body by the manufacturer of the chemical to increase the area of ​​the chemical coating 5. Chemical Name
Alcohols alchn
Compounds with the general molecular formula RCH: where R represents a hydroxyl group. 5.2
Alcohols aldehydes
Compounds with the general molecular formula R·CHO, where R represents a hydrogen (H) or a hydrocarbon. 5.3
Amines aminec
Compounds with the general molecular formula RVH,
Alkalkanes aromatics
Compounds with a single ring or multiple rings of hydrogen, with the formula ,H. (). 5.5
Esfers
Compounds with the general molecular formula RC|| tt||Aldehydes and ethers
are compounds with the molecular formula ROR',
carbon oxides bydrncarbon
are organic compounds composed of only carbon and iodine. For example, the name is used to describe any pyrolysis product before combustion, 5.8
methane
is a simple hydrogenation product with the formula: 5.9
naphthene.ccloparerfin
cycloalkanes
which have a cyclic structure and single carbon bonds between them. The general molecular formula is II.GBT818B—2003
short olefins
are hydrocarbons with a chain structure, containing single or multiple carbon double chains. The general molecular formula of a hydrocarbon with a double chain is H.
Organic acid organkalds
Commonly classified compounds with the formula RCOOT1, 5.12
N-oxides
The sum of 1% (NU) and 2% (NO2) in the gas sample is expressed as NU: equivalent 5.13
Alkane paraffir
It has an open or branched structure, and has a carbon-carbon single chain of hydrogen compounds. Its general formula is C.Hn. 5.14
Polycyclic aromatic hydrocarbons palynaeleararimatichydrocarbans, PNAPAH, are composed of three or more fused rings, and are aromatic light molecules in the form of rotating macromolecules. They are often formed in the combustion process and discharged as fragments. PNA is often listed as a strong human tumorigenic substance. 5.15
Theoretical ratio stuicbiumrlr
The theoretical chemical ratio when all reactants react with each other to achieve complete reaction and leave no residual reactants, Note: The theoretical chemical ratio of air and oxygen is the ratio of NC and I5.16
Sulfate sulphate
Compound containing sodium ions,
Note: The component of the sodium ions in the extracted gas can be obtained, including sulfuric acid, trioxide and various synthetic compounds, the sum of which is measured by filter separation,
6 Engine parts
Adaptive memory adaptivememory
A commonly used electronic control device in the anti-break air-fuel ratio control system. When the engine is running, the air-to-gas ratio can be dynamically corrected and used as a reference parameter to control other engine operating parameters, such as timing, closing and locking valve adjustment. 6.2
Air-to-gas ratio adjustment deviceuir/fuclratiueuntroldevicuA combustion limiting device that allows the supplied fuel to completely burn with the air provided by the turbocharged diesel engine. 5.3
Air sandwich airpipe
Double wall exhaust pipe with air or other heat-resistant materials in the annular space between the two cores. 6.4
Anti-relay device
An additional device to close the throttle or cut off the fuel flow of the carburetor when the ignition is interrupted. 6.5
Contactless ignition system breakcerlesgIgnltiongystem An ignition system that is fundamentally different from the conventional ignition system. The first device uses a pulse generator instead of a conventional convex tube and a contactor to connect and disconnect the ignition system using the signal of the pulse generator. 6.6
Carburetor fuel reduction control adjustment carburelordeeelerutiancpamnbustlanconiml vave6.20.
Closed-loop control ckoopcontrol
Coolant overheating
Cooling fluid overheating
Ignition control device decelerationsparkadyanceeontral A device that advances the ignition timing during deceleration, 6. 10
City speed throttle buffer deceleration-throttle damper A device that can increase the speed of the throttle valve closing, 6.11
Dual plate distributor dualdlaphragmdiatrlbutorGH/T8188—2003
A type of distributor which has two vacuum plates and can advance the ignition timing to a later time according to the ignition chamber signal acting on the same. Note: For control efficiency, under the condition of total speed and excitement, it is often necessary to advance the ignition, but in order to improve the economy of the fuel economy during the partial start-up, the ignition needs to be advanced. 6.12
Electronic ignition system electronic ignition system see 6,.
Exhaust gas recirculation system (ECR) is a system that returns part of the exhaust gas to the combustion chamber to reduce combustion source quality and reduce the formation of oxides. 6.14
Exhaust back pressure type exhaust gas recirculation system ZGRbackpreaanrecoimlled A pneumatic or electronic exhaust gas recirculation control system that also uses exhaust system pressure regulation. 6.15
Exhaust gas recirculation control valve FGRcontrolvalve controls the door of the non-gas ring recirculation disc entering the engine intake system: 6. 16
Exhaust recirculation vacuum amplifier BGKvacnnamplifler A chip that can amplify the weak carburetor signal under certain driving conditions to improve the ratio between the exhaust gas flow and the engine air flow.
Exhaust recirculation vacuum port FGRvacoumport is used to sense the air change on the carburetor to control the exhaust gas recirculation system. 6.18
Fexhaust port Hinger
Gas venting sleeve
A mesh or ceramic part in the air duct to reduce the heat loss of the exhaust gas. GB/I8188--2003
Feedback system for controlllngalr/fuelratios A system that uses the energy signal generated by the exhaust gas sensor to adjust the air-fuel ratio of the fuel mixture. 6.20
Fuel throttle valve Fuel derulve
A valve that uses the vacuum applied when the engine is decelerating to make the throttle valve slightly open, or to draw a certain amount of fuel from the closed throttle valve to supplement the fuel gas mixture to achieve more complete combustion: 6.21
bealshield
A heat insulation device made of thin metal sheets, located near the components (non-gas system) of the engine to protect the environment: 6.22
maulatedpipes
leanreacto
A thermal reaction device that is suitable for operating in an air-fuel ratio range that is leaner than the theoretical ratio, 6.24
oxygen sensor
OYVESCSO
A device that adjusts the exhaust oxygen concentration Device for providing electrical conductance to the variable surface, the electrical signal being used as an input parameter for the combustion ratio feedback control system. Note: The ventilation must be in the non-gas phase and in contact with the exhaust gas flowing through. 6.25
crankcase ventilation pnsitive crunkcaseventllation, a device for directing the gases (blow-by gas and air) in the crankcase to the engine intake system 6.26
crankcase throttle valve PCVvalve
a valve for regulating the flow of gases in the crankcase into the engine intake system. 6.27
proportional exhaust gas recirculation system proprtlonalexhautgsrecirrulaliua exhaust gas recirculation system that recirculates a certain percentage of the non-gas into the engine intake air. 6.28
quick-acting choke
an electrical or mechanically operated panel used to shorten the throttle time when starting a vehicle engine. 6.29
Fast-heating inlet tubebZxz.net
F qurk-hrat intuke Duifoll
An inlet tube that utilizes non-gas heating, with a large overlap and a metal laminar structure. The metal laminar structure may have a high heat content at the overlap with the casing, spiral surface or other type of damage to the gas. In order to quickly improve the gas flow, the thin metal or ceramic parts in the reactor are required to reduce the potential loss of the exhaust gas. 6.30
Reactorlime
Thermal reactor
A heat treatment device that operates within a certain range of air-fuel ratio. 8
Spark advance angle sparkdnet
The number of crankshaft rotation angles before the spark is received from the top dead center 6. 33
Spark delay device spnrkdelaydevky
In the vacuum advance tube, it is used to delay the correction amount of the spark advance. 6.34
Spark vacuum port
spark pnrt
The port on the carburetor used to sense the vacuum to control the spark advance angle of the distributor. 6. 35
Speed ​​controlled spark GB/T 81882003
Generally used with automatic gearboxes and ignition engines, it is used to control the distributor's spark advance angle and prevent the spark advance from occurring when the vehicle speed is lower than a selected speed.
Intake air heater 510
The part of the exhaust manifold that heats the exhaust gas. This term may also refer to the heat exchanger that heats the air in the exhaust manifold. It may also refer to the heat exchanger that heats the air by using the damper.
Leeperalnre-modulated air cleaner type air cleaner
A type of intake system consisting of a heating device, a passage, and a control valve to control the temperature of the air entering the carburetor within a specified range.
Thermoreactor thermoreactor
"This type of exhaust gas collector is usually equipped with some internal flow channels or thermal insulation devices to prevent the exhaust gas from leaving the engine. The combustion process can continue.
Note that the heat exchanger keeps the exhaust gas in a high state so that it has enough time to oxidize and 0.6. 39
Thermal vacuum switch
A coolant sensing vacuum control valve which can be used as an overload or protection device to adjust the ignition advance angle of the separator and the non-recirculating gas,
Transmission ignition control transmiasionregulaledpark See 6.41
Transmission ignition control transmiasiononspikecontrolvalve A valve which is installed before the ignition period of the separator only when the transmission is operating in a specific transmission ratio or ratios:
vacumconthnlvalve
Vacuum control valve
See 6.39.
Vacuum amplifier
Venturi vacuuru Amplifier
This is a device that adjusts the height of the carburetor to control the fresh air valve by adjusting the manifold height. CB/T81882003
7 Exhaust Emissions
Black smoke
It is composed of the incomplete combustion of the cow, which is usually small in size. 7.2
Specific emissions: Pollutants emitted per unit output gear (k: E): 7.3
Diesel exhaust smoke
The most floating particles in the diesel engine gas absorb and/scatter light! Including particles. 7.4
Emission measure, mass emissionfndex, iargs the mass of gas emitted per unit of feed (g), 7.5
exhaust emissions
exhaustemissinns
substances discharged into the atmosphere from the engine combustion chamber (but only pollutants), 7.6
partspermillioncarbor
the number of moles per million of compounds measured on the basis of isobutylene multiplied by 10-\7.7
Blue smoke rhiteandbluesnoke
Mainly white colorless smoke, can reflect and emit visible light particles, juice: the color seen in the forest is lower than the refractive index of the two bodies, the smoke band is formed by the droplets formed by the addition of tender or moist light. 8 Evaporative emissions and fuel system
Emissions from fuel tanks and/or carburetors are used to collect and store benzene in the fuel tank and/or carburetors during fuel emission
Activated carbon canistercliarenalcnister
Inter-ventilation loss diurmalhreathing knsses due to the fuel tank index increased blood pressure in the fuel tank, this benefit and the increase in the daily environment humidity required by the British proposed the need for free card in the north range, 5.4
evaporative emissions erpotiveemissio
from the vehicle fuel system, small Lang fuel tank, carburetor and other people in the fuel vapor 8.5
fuel tank stop time
fneitankrheckvalvf
fuel tank on the use of liquid fuel to stop the continuous vapor storage system can be a scientific engine city stomach. 1n
hot man inserted lost hntsankJosues
within the specified time starting from the engine shutdown, the fuel from the fuel system range of the mountain of fuel. Purge valve
purevalre
GR/T 18B—2003
A kind of charging or electric device in the emission control system, which can release the magnetic hydrogen compounds detected by the engine into the central gas system.
Refueling emissions are the mass hydrogen produced when refueling at the beginning of the vehicle. These substances are gradually discharged from the fuel tank. The vapor is the result of the gradual and clean exhaust gas from the fuel tank. The fuel tank is filled with steam ... 8.10
float pot dual-way vent to-way boom vent
a method of closing the internal vent hole of the carburetor float when the engine is stopped while keeping the external vent hole connected to the gas. This method is usually an electric or pneumatic method. 8. 11
vapor canister
rapor separator
a device used in evaporative emission control systems to prevent liquid fuel from entering the fuel tank. 5.9 fuel system
filler pipe diagram installation alliance fillertaberestrketar fuel tank refueling kidney! 9.2
The filler cap is a non-wax gasoline tank. It is allowed to be inserted into the tank without wax. It is also allowed to be equipped with a safety device to monitor the fuel pressure when the fuel tank is too high. 9.3
fuelsystem
refers to the fuel tank, fuel pipe, fuel pump, purifier, fuel vapor collector, chemical or lubrication parts and all fuel system vents and evaporative exhaust control system. 10 General term
Complete vehicle preparation
earhwiehi
The vehicle is fully equipped with all standard equipment in use, the actual amount of fuel in the tank and the equipment used. 11
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