WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

F01N　GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES ({evacuation of fumes from the area where they are produced B08B 15/00; arrangement of exhaust or silencing apparatus on percussive tools B25D 17/12}; arrangements in connection with gas exhaust of propulsion units in vehicles B60K 13/00, {on ships or other waterborne vessels B63H 21/32, on aircraft B64D 33/04; arrangement of exhaust or silencing apparatus on firearms F41A 21/30; ground installations for reducing aircraft engine or jet noise B64F 1/26; silencers specially adapted for steam engines F01B 31/16; air-intake silencers for gas turbine or jet propulsion plants F02C 7/045; jet pipe or nozzles for jet propulsion plants F02K}; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M 35/00; {combating noise or silencing in positive displacement machines or pumps F04B 39/0027, in rotary-piston machines or pumps F04C 29/06, in non-positive displacement pumps F04D 29/66; means in valves for absorbing noise F16K 47/02; noise absorbers in pipe system F16L 55/02; conducting smoke or fumes from various locations to the outside F23J 11/00; means for preventing or suppressing noise in air-conditioning or ventilation systems F24F 13/24}; protecting against, or damping, noise in general G10K 11/16)

F01N 1/00 Silencing apparatus characterised by method of silencing {by cooling F01N 3/02; using liquids F01N 3/04}

F01N 1/003 ・{by using dead chambers communicating with gas flow passages (resonance chambers F01N 1/02; chambers containing sound-absorbing materials F01N 1/24)}

F01N 1/006 ・・{comprising at least one perforated tube extending from inlet to outlet of the silencer}

F01N 1/02 ・by using resonance

F01N 1/023 ・・{Helmholtz resonators}

F01N 1/026 ・・{Annular resonance chambers arranged concentrically to an exhaust passage and communicating with it, e.g. via at least one opening in the exhaust passage}

F01N 1/04 ・・having sound-absorbing materials in resonance chambers

F01N 1/06 ・by using interference effect

F01N 1/065 ・・{by using an active noise source, e.g. speakers}

F01N 1/08 ・by reducing exhaust energy by throttling or whirling

F01N 1/081 ・・{by passing the gases through a mass of particles}

F01N 1/082 ・・{the gases passing through porous members (F01N 1/081 takes precedence)}

F01N 1/083 ・・{using transversal baffles defining a tortuous path for the gases or successively throttling gas flow}

F01N 1/084 ・・{the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes}

F01N 1/085 ・・{using a central core throttling gas passage}

F01N 1/086 ・・{having means to impart whirling motion to the gases (with helically or spirally shaped channels F01N 1/12)}

F01N 1/087 ・・・{using tangential inlets into a circular chamber}

F01N 1/088 ・・・{using vanes arranged on gas flow path or gas flow tubes with tangentially directed apertures}

F01N 1/089 ・・{using two or more expansion chambers in series (F01N 1/083, F01N 1/084, F01N 1/086 take precedence)}

F01N 1/10 ・・in combination with sound-absorbing materials (F01N 1/125 takes precedence)

F01N 1/12 ・・using spirally or helically shaped channels (cyclones B04C)

F01N 1/125 ・・・{in combination with sound-absorbing materials}

F01N 1/14 ・by adding air to exhaust gases {(in tailpipes F01N 7/08B, F01N 7/20)}

F01N 1/16 ・by using movable parts

F01N 1/161 ・・{for adjusting resonance or dead chambers or passages to resonance or dead chambers}

F01N 1/163 ・・・{by means of valves}

F01N 1/165 ・・{for adjusting flow area}

F01N 1/166 ・・{for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe (F01N 1/165 takes precedence)}

F01N 1/168 ・・{for controlling or modifying silencing characteristics only}

F01N 1/18 ・・having rotary movement

F01N 1/20 ・・having oscillating or vibrating movement {the parts being resilient walls F01N 1/22}

F01N 1/22 ・・the parts being resilient walls

F01N 1/24 ・by using sound-absorbing materials (F01N 1/04, F01N 1/06, F01N 1/10, F01N 1/14, F01N 1/16 take precedence)

F01N 3/00 Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust (electric control F01N 9/00; monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N 11/00; {collecting or removing exhaust gases of vehicle engines in workshops B08B 15/00, on highways E01C 1/005})

F01N 3/005 ・{for draining or otherwise eliminating condensates or moisture accumulating in the apparatus (F01N 3/02 takes precedence)} [c0809]

F01N 3/01 ・by means of electric or electrostatic separators

F01N 3/02 ・for cooling, or for removing solid constituents of, exhaust (by means of electric or electrostatic separators F01N 3/01; {mixing air with exhaust in tailpipes F01N 7/08B, F01N 7/20})

F01N 3/0205 ・・{using heat exchangers}

F01N 3/021 ・・by means of filters

F01N 3/0211 ・・・{Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration}

F01N 3/0212 ・・・{with one or more perforated tubes surrounded by filtering material, e.g. filter candles}

F01N 3/0214 ・・・{with filters comprising movable parts, e.g. rotating filters}

F01N 3/0215 ・・・{the filtering elements having the form of disks or plates}

F01N 3/0217 ・・・{the filtering elements having the form of hollow cylindrical bodies}

F01N 3/0218 ・・・{the filtering elements being made from spirally-wound filtering material}

F01N 3/022 ・・・characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous

F01N 3/0222 ・・・・{the structure being monolithic, e.g. honeycombs}

F01N 3/0224 ・・・・{the structure being granular}

F01N 3/0226 ・・・・{the structure being fibrous}

F01N 3/0228 ・・・・{the structure being made of foamed rubber or plastics}

F01N 3/023 ・・・using means for regenerating the filters, e.g. by burning trapped particles (by electrically controlling the supply of combustible mixture or its constituents only F02D 41/0235)

F01N 3/0231 ・・・・{using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems (CRT)}

F01N 3/0232 ・・・・{removing incombustible material from a particle filter, e.g. ash}

F01N 3/0233 ・・・・{periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake}

F01N 3/0234 ・・・・{using heat exchange means in the exhaust line}

F01N 3/0235 ・・・・{using exhaust gas throttling means}

F01N 3/0236 ・・・・{using turbine waste gate valve}

F01N 3/0237 ・・・・{for regenerating ex situ}

F01N 3/0238 ・・・・{for regenerating during engine standstill}

F01N 3/025 ・・・・using fuel burner or by adding fuel to exhaust

F01N 3/0253 ・・・・・{adding fuel to exhaust gases}

F01N 3/0256 ・・・・・・{the fuel being ignited by electrical means}

F01N 3/027 ・・・・using electric or magnetic heating means

F01N 3/0275 ・・・・・{using electric discharge means}

F01N 3/028 ・・・・・using microwaves

F01N 3/029 ・・・・by adding non-fuel substances to exhaust

F01N 3/0293 ・・・・・{injecting substances in exhaust stream}

F01N 3/0296 ・・・・・・{having means for preheating additional substances}

F01N 3/031 ・・・having means for by-passing filters, e.g. when clogged or during cold engine start

F01N 3/032 ・・・・during filter regeneration only

F01N 3/033 ・・・in combination with other devices {with adsorbents or absorbents F01N 3/0821}

F01N 3/0335 ・・・・{with exhaust silencers in a single housing}

F01N 3/035 ・・・・with catalytic reactors, {e.g. catalysed diesel particulate filters }

F01N 3/037 ・・by means of inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators

F01N 3/038 ・・by means of perforated plates defining expansion chambers associated with condensation and collection chambers, e.g. for adiabatic expansion of gases and subsequent collection of condensed liquids

F01N 3/04 ・・using liquids

F01N 3/043 ・・・{without contact between liquid and exhaust gases}

F01N 3/046 ・・・・{Exhaust manifolds with cooling jacket}

F01N 3/05 ・・by means of air, e.g. by mixing exhaust with air (silencers working by addition of air to exhaust F01N 1/14; arrangements for the supply of additional air for the thermal or catalytic conversion of noxious components of exhaust F01N 3/30; {in tailpipes F01N 7/08B})

F01N 3/055 ・・・{without contact between air and exhaust gases}

F01N 3/06 ・for extinguishing sparks

F01N 3/08 ・for rendering innocuous (using electric or electrostatic separators F01N 3/01; chemical aspects B01D 53/92)

F01N 3/0807 ・・{by using absorbents or adsorbents}

F01N 3/0814 ・・・{combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts}

F01N 3/0821 ・・・{combined with particulate filters (catalysed diesel particulate filters F01N 3/035)}

F01N 3/0828 ・・・{characterised by the absorbed or adsorbed substances}

F01N 3/0835 ・・・・{Hydrocarbons}

F01N 3/0842 ・・・・{Nitrogen oxides}

F01N 3/085 ・・・・{Sulfur or sulfur oxides}

F01N 3/0857 ・・・・{Carbon oxides}

F01N 3/0864 ・・・・{Oxygen}

F01N 3/0871 ・・・{Regulation of absorbents or adsorbents, e.g. purging (by electrically controlling the supply of combustible mixture or its constituents only F02D 41/0235)}

F01N 3/0878 ・・・・{Bypassing absorbents or adsorbents}

F01N 3/0885 ・・・・{Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps}

F01N 3/0892 ・・{Electric or magnetic treatment, e.g. dissociation of noxious components (electric filters F01N 3/01; regeneration of exhaust filters F01N 3/023; heating catalytic converters F01N 3/2006)}

F01N 3/10 ・・by thermal or catalytic conversion of noxious components of exhaust (by using other chemical processes, chemical aspects of catalytic conversion, e.g. using specified catalysts, B01D 53/34)

F01N 3/101 ・・・{Three-way catalysts}

F01N 3/103 ・・・{Oxidation catalysts for HC and CO only}

F01N 3/105 ・・・{General auxiliary catalysts, e.g. upstream or downstream of the main catalyst}

F01N 3/106 ・・・・{Auxiliary oxidation catalysts}

F01N 3/108 ・・・・{Auxiliary reduction catalysts}

F01N 3/18 ・・・characterised by methods of operation; Regulation

F01N 3/20 ・・・・specially adapted for catalytic conversion; {Methods of operation or regulation of catalytic converters}(F01N 3/22 takes precedence)

F01N 3/2006 ・・・・・{Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating (by electrically controlling the supply of combustible mixture or its constituents only F02D 41/0235)}

F01N 3/2013 ・・・・・・{using electric or magnetic heating means}

F01N 3/202 ・・・・・・・{using microwaves}

F01N 3/2026 ・・・・・・・{directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect}

F01N 3/2033 ・・・・・・{using a fuel burner or introducing fuel into exhaust duct}

F01N 3/204 ・・・・・・{using an exhaust gas igniter, e.g. a spark or glow plug, without introducing fuel into exhaust duct}

F01N 3/2046 ・・・・・・{Periodically cooling catalytic reactors}

F01N 3/2053 ・・・・・{By-passing catalytic reactors, e.g. to prevent overheating}

F01N 3/206 ・・・・・{Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents (F01N 3/2066 takes precedence)}

F01N 3/2066 ・・・・・{Selective catalytic reduction (SCR)}

F01N 3/2073 ・・・・・・{with means for generating a reducing substance from the exhaust gases}

F01N 3/208 ・・・・・・{Control of selective catalytic reduction (SCR), e.g. dosing of reducing agent}

F01N 3/2086 ・・・・・{Activating the catalyst by light, photo-catalysts}

F01N 3/2093 ・・・・・{Periodically blowing a gas through the converter, e.g. in a direction opposite to exhaust gas flow or by reversing exhaust gas flow direction}

F01N 3/22 ・・・・Regulation of additional air supply only, e.g. using by-passes or variable air pump drives

F01N 3/222 ・・・・・[N: using electric valves only

F01N 3/225 ・・・・・{Electric control of additional air supply}

F01N 3/227 ・・・・・{using pneumatically operated valves, e.g. membrane valves}

F01N 3/24 ・・・characterised by constructional aspects of converting apparatus (filtering in combination with catalytic reactors F01N 3/035)

F01N 3/26 ・・・・Construction of thermal reactors

F01N 3/28 ・・・・Construction of catalytic reactors

F01N 3/2803 ・・・・・{characterised by structure, by material or by manufacturing of catalyst support}

F01N 3/2807 ・・・・・・{Metal other than sintered metal (F01N 3/2832 and F01N 3/2835 take precedence)}

F01N 3/281 ・・・・・・・{Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates}

F01N 3/2814 ・・・・・・・・{all sheets, plates or foils being corrugated}

F01N 3/2817 ・・・・・・・・{only with non-corrugated sheets, plates or foils}

F01N 3/2821 ・・・・・・・・{the support being provided with means to enhance the mixing process inside the converter, e.g. sheets, plates or foils with protrusions or projections to create turbulence}

F01N 3/2825 ・・・・・・{Ceramics (F01N 3/2832, F01N 3/2835 take precedence)}

F01N 3/2828 ・・・・・・・{Ceramic multi-channel monoliths, e.g. honeycombs}

F01N 3/2832 ・・・・・・{granular, e.g. pellets}

F01N 3/2835 ・・・・・・{fibrous}

F01N 3/2839 ・・・・・{Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration}

F01N 3/2842 ・・・・・・{specially adapted for monolithic supports, e.g. of honeycomb type (F01N 3/2853 to F01N 3/2871 take precedence)}

F01N 3/2846 ・・・・・・{specially adapted for granular supports, e.g. pellets}

F01N 3/285 ・・・・・・{specially adapted for fibrous supports, e.g. held in place by screens}

F01N 3/2853 ・・・・・・{using mats or gaskets between catalyst body or housing}

F01N 3/2857 ・・・・・・・{the mats or gaskets being at least partially made of intumescent material, e.g. unexpanded vermiculite}

F01N 3/286 ・・・・・・・{the mats or gaskets having corrugations or cavities}

F01N 3/2864 ・・・・・・・{the mats or gaskets comprising two or more insulation layers}

F01N 3/2867 ・・・・・・・{the mats or gaskets being placed at the front or end face of catalyst body}

F01N 3/2871 ・・・・・・・{the mats or gaskets having an additional, e.g. non-insulating or non-cushioning layer, a metal foil or an adhesive layer}

F01N 3/2875 ・・・・・・{by using elastic means, e.g. spring leaves, for retaining catalyst body in the housing (F01N 3/2853 to F01N 3/2871 take precedence)}

F01N 3/2878 ・・・・・・{by using non-elastic means for retaining catalyst body in the housing, e.g. a metal chamfer, or by corrugation or deformation of the metal housing}

F01N 3/2882 ・・・・・{Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices (combined with absorbents or adsorbents only F01N 3/0814; combined with particulate filters F01N 3/035)}

F01N 3/2885 ・・・・・・{with exhaust silencers in a single housing}

F01N 3/2889 ・・・・・・{with heat exchangers in a single housing}

F01N 3/2892 ・・・・・{Exhaust flow directors or the like, e.g. upstream of catalytic device}

F01N 3/2896 ・・・・・{Liquid catalyst carrier}

F01N 3/30 ・・・・Arrangements for supply of additional air (regulation, e.g. using air by-passes or variable air pump drives F01N 3/22)

F01N 3/303 ・・・・・{Filtering additional air}

F01N 3/306 ・・・・・{Preheating additional air}

F01N 3/32 ・・・・・using air pump (using jet air pumps F01N 3/34; pumps in general F04)

F01N 3/323 ・・・・・・{Electrically driven air pumps}

F01N 3/326 ・・・・・・{Engine-driven air pumps}

F01N 3/34 ・・・・・using air conduits or jet air pumps, e.g. near the engine exhaust port

F01N 3/36 ・・・・Arrangements for supply of additional fuel

F01N 3/38 ・・・・Arrangements for igniting

F01N 5/00 Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy (predominant aspects of such devices, see the relevant classes for the devices; using kinetic or wave energy of exhaust gases in exhaust systems for charging F02B)

F01N 5/02 ・the devices using heat

F01N 5/025 ・・{the device being thermoelectric generators}

F01N 5/04 ・the devices using kinetic energy

F01N 9/00 Electrical control of exhaust gas treating apparatus (monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N 11/00; {electrical control of supply of combustible mixture or its constituents in relation with the state of the exhaust gas treating apparatus F02D 41/0235}; controlling combustion engines conjoint electrical control of two or more combustion engine functions F02D 43/00)

F01N 9/002 ・{of filter regeneration, e.g. detection of clogging}

F01N 9/005 ・{using models instead of sensors to determine operating characteristics of exhaust systems, e.g. calculating catalyst temperature instead of measuring it directly}

F01N 9/007 ・{Storing data relevant to operation of exhaust systems for later retrieval and analysis, e.g. to research exhaust system malfunctions}

F01N 11/00 Monitoring or diagnostic devices for exhaust-gas treatment apparatus, {e.g. for catalytic activity (safety, indicating or supervising devices for internal combustion engines F02B 77/08; testing of machines G01M 13/00)}

F01N 11/002 ・{the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus}

F01N 11/005 ・・{the temperature or pressure being estimated, e.g. by means of a theoretical model}

F01N 11/007 ・{the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus}

F01N 13/00 Exhaust or silencing apparatus characterised by constructional features; {Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N 1/00 to F01N 5/00, F01N 9/00, F01N 11/00}

F01N 13/001 ・{Gas flow channels or gas chambers being at least partly formed in the structural parts of the engine or machine (using structural parts of the vehicle B60K 13/06)}

F01N 13/002 ・{Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines}

F01N 13/004 ・{specially adapted for marine propulsion, i.e. for receiving simultaneously engine exhaust gases and engine cooling water (for submerged exhausting F01N 13/12; treating exhaust by using liquids F01N 3/04)}

F01N 13/005 ・・{with parts constructed of non-metallic material, e.g. of rubber}

F01N 13/007 ・{Apparatus used as intake or exhaust silencer (silencing methods F01N 1/00; intake silencers F02M 35/12)}

F01N 13/008 ・{Mounting or arrangement of exhaust sensors in or on exhaust apparatus (sensor arrangements for engine control F02D 41/1439)}

F01N 13/02 ・having two or more separate silencers in series

F01N 13/04 ・having two or more silencers in parallel e.g. having interconnections for multi-cylinder engines

F01N 13/06 ・specially adapted for star-arrangement of cylinders, e.g. exhaust manifolds

F01N 13/08 ・Other arrangements or adaptations of exhaust conduits ({pipes, joints or supports therefor in general F16L; collecting or removing exhaust gases of vehicle engines in workshops B08B 15/00, on highways E01C 1/005})

F01N 13/082 ・・{of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation (F01N 13/20 takes precedence)}

F01N 13/085 ・・{having means preventing foreign matter from entering exhaust conduit}

F01N 13/087 ・・{having valves upstream of silencing apparatus for by-passing at least part of exhaust directly to atmosphere (valves for changing gas flow path through the silencer F01N 1/166)}

F01N 13/10 ・・of exhaust manifolds {(with cooling jacket F01N 3/046)}

F01N 13/102 ・・・{having thermal insulation}

F01N 13/105 ・・・{having the form of a chamber directly connected to the cylinder head, e.g. without having tubes connected between cylinder head and chamber}

F01N 13/107 ・・・{More than one exhaust manifold or exhaust collector}

F01N 13/12 ・specially adapted for submerged exhausting

F01N 13/14 ・having thermal insulation {(exhaust manifolds F01N 13/102)}

F01N 13/141 ・・{Double-walled exhaust pipes or housings}

F01N 13/143 ・・・{with air filling the space between both walls}

F01N 13/145 ・・・{with gas other than air filling the space between both walls}

F01N 13/146 ・・・{with vacuum in the space between both walls}

F01N 13/148 ・・{Multiple layers of insulating material}

F01N 13/16 ・Selection of particular materials

F01N 13/18 ・Construction facilitating manufacture, assembly, or disassembly

F01N 13/1805 ・・{Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body (pipe joints in general F16L; fixing auxiliaries in motor vehicles in general B60K)}

F01N 13/1811 ・・・{with means permitting relative movement, e.g. compensation of thermal expansion or vibration}

F01N 13/1816 ・・・・{the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes}

F01N 13/1822 ・・・・{for fixing exhaust pipes or devices to vehicle body}

F01N 13/1827 ・・・{Sealings specially adapted for exhaust systems (sealings in general F16J 15/00)}

F01N 13/1833 ・・{specially adapted for small internal combustion engines, e.g. used in model applications}

F01N 13/1838 ・・{characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles}

F01N 13/1844 ・・・{Mechanical joints}

F01N 13/185 ・・・・{the connection being realised by deforming housing, tube, baffle, plate, or parts thereof}

F01N 13/1855 ・・・・{the connection being realised by using bolts, screws, rivets or the like}

F01N 13/1861 ・・{the assembly using parts formed by casting or moulding}

F01N 13/1866 ・・・{the channels or tubes thereof being made integrally with the housing}

F01N 13/1872 ・・{the assembly using stamp-formed parts or otherwise deformed sheet-metal}

F01N 13/1877 ・・・{the channels or tubes thereof being made integrally with the housing}

F01N 13/1883 ・・{manufactured by hydroforming}

F01N 13/1888 ・・{the housing of the assembly consisting of two or more parts, e.g. two half-shells}

F01N 13/1894 ・・・{the parts being assembled in longitudinal direction}

F01N 13/20 ・having flared outlets, e.g. of fish-tail shape

F01N 2013/00 Exhaust or silencing apparatus characterised by constructional features; {Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N 1/00 to F01N 5/00, F01N 9/00, F01N 11/00}

F01N 2013/02 ・having two or more separate silencers in series

F01N 2013/023 ・・with two or more of the same type of purifying devices in series

F01N 2013/026 ・・in a single housing

F01N 2013/04 ・having two or more silencers in parallel e.g. having interconnections for multi-cylinder engines

F01N 2013/045 ・・in a single housing

F01N 2210/00 Combination of methods of silencing

F01N 2210/02 ・Resonance and interference

F01N 2210/04 ・Throttling-expansion and resonance

F01N 2210/06 ・Throttling-expansion and interference

F01N 2230/00 Combination of silencers and other devices

F01N 2230/02 ・Exhaust filters

F01N 2230/04 ・Catalytic converters

F01N 2230/06 ・Spark arresters

F01N 2230/08 ・Thermal reactors

F01N 2240/00 Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N 2230/00 or F01N 2250/00, one of the devices being

F01N 2240/02 ・a heat exchanger

F01N 2240/04 ・an electric, e.g. electrostatic, device other than a heater

F01N 2240/05 ・a magnetic, e.g. electromagnetic, device other than a valve

F01N 2240/06 ・an inertial, e.g. centrifugal, device

F01N 2240/10 ・a heat accumulator

F01N 2240/12 ・a thermal reactor

F01N 2240/14 ・a fuel burner

F01N 2240/16 ・an electric heater, i.e. a resistance heater

F01N 2240/18 ・an adsorber or absorber

F01N 2240/20 ・a flow director or deflector

F01N 2240/22 ・a condensation chamber

F01N 2240/25 ・an ammonia generator

F01N 2240/26 ・an exhaust gas reservoir, e.g. emission buffer

F01N 2240/28 ・a plasma reactor

F01N 2240/30 ・a fuel reformer

F01N 2240/32 ・a fuel cell

F01N 2240/34 ・an electrolyser

F01N 2240/36 ・an exhaust flap

F01N 2240/38 ・an ozone (O3) generator, e.g. for adding ozone after generation of ozone from air

F01N 2240/40 ・a hydrolysis catalyst

F01N 2250/00 Combinations of different methods of purification

F01N 2250/02 ・filtering and catalytic conversion

F01N 2250/04 ・afterburning and catalytic conversion

F01N 2250/06 ・afterburning and filtering

F01N 2250/08 ・filtering and inertial particulate separation

F01N 2250/10 ・cooling and filtering

F01N 2250/12 ・absorption or adsorption, and catalytic conversion

F01N 2250/14 ・absorption or adsorption, and filtering

F01N 2260/00 Exhaust treating devices having provisions not otherwise provided for

F01N 2260/02 ・for cooling the device

F01N 2260/022 ・・using air

F01N 2260/024 ・・using a liquid

F01N 2260/04 ・for regeneration or reactivation, e.g. of catalyst

F01N 2260/06 ・for improving exhaust evacuation or circulation, or reducing back-pressure

F01N 2260/08 ・for preventing heat loss or temperature drop, using other means than layers of heat-insulating material

F01N 2260/10 ・for avoiding stress caused by expansions or contractions due to temperature variations

F01N 2260/12 ・for resisting high pressure

F01N 2260/14 ・for modifying or adapting flow area or back-pressure

F01N 2260/16 ・for reducing exhaust flow pulsations

F01N 2260/18 ・for improving rigidity, e.g. by wings, ribs

F01N 2260/20 ・for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device

F01N 2260/22 ・for preventing theft of exhaust parts or devices, e.g. anti-theft arrangements

F01N 2260/24 ・for identifying exhaust parts or devices, e.g. by labels, stickers or directly printing

F01N 2260/26 ・for preventing enter of dirt into the device

F01N 2270/00 Mixing air with exhaust gases

F01N 2270/02 ・for cooling exhaust gases or the apparatus

F01N 2270/04 ・for afterburning

F01N 2270/06 ・for silencing

F01N 2270/08 ・for evacuation of exhaust gases, e.g. in tail-pipes

F01N 2270/10 ・for rendering exhaust innocuous, e.g. by dilution

F01N 2290/00 Movable parts or members in exhaust systems for other than for control purposes

F01N 2290/02 ・with continuous rotary movement

F01N 2290/04 ・・driven by exhaust gases

F01N 2290/06 ・・driven by auxiliary drive

F01N 2290/08 ・with oscillating or vibrating movement

F01N 2290/10 ・・actuated by pressure of exhaust gases, e.g. exhaust pulses

F01N 2310/00 Selection of sound absorbing or insulating material

F01N 2310/02 ・Mineral wool, e.g. glass wool, rock wool, asbestos or the like

F01N 2310/04 ・Metallic wool, e.g. steel wool, copper wool or the like

F01N 2310/06 ・Porous ceramics

F01N 2310/08 ・Exfoliated vermiculite, e.g. zonolite, coke, pumice

F01N 2310/10 ・Plastic foam

F01N 2310/12 ・Granular material

F01N 2310/14 ・Wire mesh fabric, woven glass cloth or the like

F01N 2330/00 Structure of catalyst support or particle filter

F01N 2330/02 ・Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal

F01N 2330/04 ・・Methods of manufacturing

F01N 2330/06 ・Ceramic, e.g. monoliths

F01N 2330/08 ・Granular material

F01N 2330/10 ・Fibrous material, e.g. mineral or metallic wool

F01N 2330/101 ・・using binders, e.g. to form a permeable mat, paper or the like

F01N 2330/102 ・・・fibrous material being fiber reinforced polymer made of plastic matrix reinforced by fine glass or in the form of a loose mass of filaments or fibers

F01N 2330/12 ・Metallic wire mesh fabric or knitting

F01N 2330/14 ・Sintered material

F01N 2330/18 ・Composite material

F01N 2330/20 ・Plastics, e.g. polymers, polyester, polyurethane

F01N 2330/22 ・Metal foam

F01N 2330/30 ・Honeycomb supports characterised by their structural details

F01N 2330/32 ・・characterised by the shape, form or number of corrugations of plates, sheets or foils

F01N 2330/321 ・・・with two or more different kinds of corrugations in the same substrate

F01N 2330/322 ・・・Corrugations of trapezoidal form

F01N 2330/323 ・・・Corrugations of saw-tooth or triangular form

F01N 2330/324 ・・・Corrugations of rectangular form

F01N 2330/325 ・・・Corrugations of omega form

F01N 2330/34 ・・with flow channels of polygonal cross section

F01N 2330/36 ・・with flow channels formed by tubes

F01N 2330/38 ・・flow channels with means to enhance flow mixing, (e.g. protrusions or projections)

F01N 2330/40 ・・made of a single sheet, foil or plate

F01N 2330/42 ・・made of three or more different sheets, foils or plates stacked one on the other

F01N 2330/44 ・・made of stacks of sheets, plates or foils that are folded in S-form

F01N 2330/48 ・・characterised by the number of flow passages, e.g. cell density

F01N 2330/60 ・Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same housing

F01N 2340/00 Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses

F01N 2340/02 ・characterised by the distance of the apparatus to the engine, or the distance between two exhaust treating apparatuses

F01N 2340/04 ・characterised by the arrangement of an exhaust pipe, manifold or apparatus in relation to vehicle frame or particular vehicle parts

F01N 2340/06 ・characterised by the arrangement of the exhaust apparatus relative to the turbine of a turbocharger

F01N 2350/00 Arrangements for fitting catalyst support or particle filter element in the housing

F01N 2350/02 ・Fitting ceramic monoliths in a metallic housing

F01N 2350/04 ・・with means compensating thermal expansion

F01N 2350/06 ・・with means preventing gas flow by-pass or leakage

F01N 2350/08 ・with means for compressing granular material

F01N 2370/00 Selection of materials for exhaust purification

F01N 2370/02 ・used in catalytic reactors

F01N 2370/04 ・・Zeolitic material

F01N 2370/22 ・used in non-catalytic purification apparatus

F01N 2370/24 ・・Zeolitic material

F01N 2370/30 ・・Materials having magnetic properties

F01N 2370/40 ・Activated carbon or charcoal

F01N 2390/00 Arrangements for controlling or regulating exhaust apparatus

F01N 2390/02 ・using electric components only

F01N 2390/04 ・using electropneumatic components

F01N 2390/06 ・using pneumatic components only

F01N 2390/08 ・using mechanical components only, e.g. actuated manually

F01N 2410/00 By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device

F01N 2410/02 ・in case of high temperature, e.g. overheating of catalytic reactor

F01N 2410/03 ・in case of low temperature

F01N 2410/04 ・during regeneration period, e.g. of particle filter

F01N 2410/06 ・at cold starting

F01N 2410/08 ・in case of clogging, e.g. of particle filter

F01N 2410/10 ・for reducing flow resistance, e.g. to obtain more engine power

F01N 2410/12 ・in case of absorption, adsorption or desorption of exhaust gas constituents

F01N 2410/14 ・in case of excessive pressure, e.g. using a safety valve

F01N 2430/00 Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics

F01N 2430/02 ・by cutting out a part of engine cylinders

F01N 2430/04 ・by adding non-fuel substances to combustion air or fuel, e.g. additives

F01N 2430/06 ・by varying fuel-air ratio, e.g. by enriching fuel-air mixture

F01N 2430/08 ・by modifying ignition or injection timing

F01N 2430/085 ・・at least a part of the injection taking place during expansion or exhaust stroke

F01N 2430/10 ・by modifying inlet or exhaust valve timing

F01N 2450/00 Methods or apparatus for fitting, inserting or repairing different elements

F01N 2450/02 ・Fitting monolithic blocks into the housing

F01N 2450/04 ・Filling or emptying a chamber with granular material

F01N 2450/06 ・Inserting sound absorbing material into a chamber

F01N 2450/08 ・Repairing the housing or pipe-joints

F01N 2450/10 ・Fitting temporarily exhaust apparatus on exhaust conduit, e.g. in confined environment, garage or the like

F01N 2450/16 ・by using threaded joints

F01N 2450/18 ・by using quick-active type locking mechanisms, e.g. clips

F01N 2450/20 ・by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof

F01N 2450/22 ・by welding or brazing

F01N 2450/24 ・by bolts, screws, rivets or the like

F01N 2450/26 ・by bayonet fittings

F01N 2450/28 ・by using adhesive material, e.g. cement

F01N 2450/30 ・Removable or rechangeable blocks or cartridges, e.g. for filters

F01N 2450/40 ・Retrofitting exhaust apparatus

F01N 2470/00 Structure or shape of gas passages, pipes or tubes

F01N 2470/02 ・Tubes being perforated

F01N 2470/04 ・・characterised by shape, disposition or dimensions of apertures

F01N 2470/06 ・Tubes being formed by assembly of stamped or otherwise deformed sheet-metal

F01N 2470/08 ・Gas passages being formed between the walls of an outer shell and an inner chamber

F01N 2470/10 ・Tubes having non-circular cross section

F01N 2470/12 ・Tubes being corrugated

F01N 2470/14 ・Plurality of outlet tubes, e.g. in parallel or with different length

F01N 2470/16 ・Plurality of inlet tubes, e.g. discharging into different chambers

F01N 2470/18 ・the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus

F01N 2470/20 ・Dimensional characteristics of tubes, e.g. length, diameter

F01N 2470/22 ・Inlet and outlet tubes being positioned on the same side of the apparatus

F01N 2470/24 ・Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled

F01N 2470/26 ・Tubes being formed by extrusion, drawing or rolling

F01N 2470/28 ・Tubes being formed by moulding or casting x

F01N 2470/30 ・Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow

F01N 2490/00 Structure, disposition or shape of gas-chambers

F01N 2490/02 ・Two or more expansion chambers in series connected by means of tubes

F01N 2490/04 ・・the gases flowing longitudinally from inlet to outlet only in one direction

F01N 2490/06 ・・the gases flowing longitudinally from inlet to outlet in opposite directions

F01N 2490/08 ・Two or more expansion chambers in series separated by apertured walls only

F01N 2490/10 ・Two or more expansion chambers in parallel

F01N 2490/12 ・Chambers having variable volumes

F01N 2490/14 ・Dead or resonance chambers connected to gas flow tube by relatively short side-tubes

F01N 2490/15 ・Plurality of resonance or dead chambers

F01N 2490/155 ・・being disposed one after the other in flow direction

F01N 2490/16 ・Chambers with particular shapes, e.g. spherical

F01N 2490/18 ・Dimensional characteristics of gas chambers

F01N 2490/20 ・Chambers being formed inside the exhaust pipe without enlargement of the cross section of the pipe, e.g. resonance chambers

F01N 2510/00 Surface coverings

F01N 2510/02 ・for thermal insulation

F01N 2510/04 ・for sound absorption

F01N 2510/06 ・for exhaust purification, e.g. catalytic reaction

F01N 2510/061 ・・usable with leaded fuels

F01N 2510/063 ・・zeolites

F01N 2510/065 ・・for reducing soot ignition temperature

F01N 2510/067 ・・usable with sulfurised fuels

F01N 2510/068 ・・characterised by the distribution of the catalytic coatings

F01N 2510/0682 ・・・having a discontinuous, uneven or partially overlapping coating of catalytic material, e.g. higher amount of material upstream than downstream or vice-versa

F01N 2510/0684 ・・・having more than one coating layer, e.g. multi-layered coatings

F01N 2510/08 ・for corrosion prevention

F01N 2510/10 ・for preventing carbon deposits, e.g. chromium

F01N 2510/12 ・for smell removal

F01N 2510/14 ・for dehydrating

F01N 2530/00 Selection of materials for tubes, chambers or housings

F01N 2530/02 ・Corrosion resistive metals

F01N 2530/04 ・・Steel alloys, e.g. stainless steel

F01N 2530/06 ・Aluminium or alloys thereof

F01N 2530/18 ・Plastics material, e.g. polyester resin

F01N 2530/20 ・・reinforced with mineral or metallic fibres

F01N 2530/22 ・Flexible elastomeric material

F01N 2530/24 ・Sintered porous material, e.g. bronze, aluminium or the like

F01N 2530/26 ・Multi-layered walls

F01N 2550/00 Monitoring or diagnosing the deterioration of exhaust systems

F01N 2550/02 ・Catalytic activity of catalytic converters

F01N 2550/03 ・of sorbing activity of adsorbents or absorbents

F01N 2550/04 ・Filtering activity of particulate filters

F01N 2550/05 ・Systems for adding substances into exhaust

F01N 2550/06 ・By-pass systems

F01N 2550/10 ・・of catalytic converters

F01N 2550/12 ・・of particulate filters

F01N 2550/14 ・Systems for adding secondary air into exhaust

F01N 2550/20 ・Monitoring artificially aged exhaust systems

F01N 2550/22 ・of electric heaters for exhaust systems or their power supply

F01N 2550/24 ・Determining the presence or absence of an exhaust treating device

F01N 2560/00 Exhaust systems with means for detecting or measuring exhaust gas components or characteristics

F01N 2560/02 ・the means being an exhaust gas sensor

F01N 2560/021 ・・for measuring or detecting ammonia NH3

F01N 2560/022 ・・for measuring or detecting CO or CO2

F01N 2560/023 ・・for measuring or detecting HC

F01N 2560/024 ・・for measuring or detecting hydrogen H2

F01N 2560/025 ・・for measuring or detecting O2, e.g. lambda sensors

F01N 2560/026 ・・for measuring or detecting NOx

F01N 2560/027 ・・for measuring or detecting SOx

F01N 2560/028 ・・for measuring or detecting humidity or water

F01N 2560/05 ・the means being a particulate sensor

F01N 2560/06 ・the means being a temperature sensor

F01N 2560/07 ・the means being an exhaust gas flow rate or velocity meter or sensor, intake flow meters only when exclusively used to determine exhaust gas parameters

F01N 2560/08 ・the means being a pressure sensor

F01N 2560/12 ・Other sensor principles, e.g. using electro conductivity of substrate or radio frequency

F01N 2560/14 ・having more than one sensor of one kind

F01N 2560/20 ・Sensor having heating means

F01N 2570/00 Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds

F01N 2570/02 ・Lead

F01N 2570/04 ・Sulfur or sulfur oxides

F01N 2570/06 ・Zinc

F01N 2570/08 ・Phosphorus

F01N 2570/10 ・Carbon or carbon oxides

F01N 2570/12 ・Hydrocarbons

F01N 2570/14 ・Nitrogen oxides

F01N 2570/145 ・・Dinitrogen oxide

F01N 2570/16 ・Oxygen

F01N 2570/18 ・Ammonia

F01N 2570/20 ・Formaldehyde

F01N 2570/22 ・Water or humidity

F01N 2570/24 ・Hydrogen sulfide (H2S)

F01N 2590/00 Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines

F01N 2590/02 ・for marine vessels or naval applications

F01N 2590/021 ・・for outboard engines

F01N 2590/022 ・・for jetskis

F01N 2590/04 ・for motorcycles

F01N 2590/06 ・for hand-held tools or portables devices

F01N 2590/08 ・for heavy duty applications, e.g. trucks, buses, tractors, locomotives

F01N 2590/10 ・for stationary applications

F01N 2590/11 ・for hybrid vehicles

F01N 2610/00 Adding substances to exhaust gases

F01N 2610/01 ・the substance being catalytic material in liquid form

F01N 2610/02 ・the substance being ammonia or urea

F01N 2610/03 ・the substance being hydrocarbons, e.g. engine fuel

F01N 2610/04 ・the substance being hydrogen

F01N 2610/05 ・the substance being carbon monoxide

F01N 2610/06 ・the substance being in the gaseous form

F01N 2610/08 ・with prior mixing of the substances with a gas, e.g. air

F01N 2610/085 ・・Controlling the air supply

F01N 2610/10 ・the substance being heated, e.g. by heating tank or supply line of the added substance

F01N 2610/102 ・・after addition to exhaust gases, e.g. by a passively or actively heated surface in the exhaust conduit

F01N 2610/105 ・・Control thereof

F01N 2610/107 ・・using glow plug heating elements

F01N 2610/11 ・the substance or part of the dosing system being cooled

F01N 2610/12 ・the substance being in solid form, e.g. pellets or powder

F01N 2610/14 ・Arrangements for the supply of substances, e.g. conduits

F01N 2610/1406 ・・Storage means for substances, e.g. tanks or reservoirs

F01N 2610/1413 ・・・Inlet and filling arrangements therefore

F01N 2610/142 ・・・Controlling the filling of the tank

F01N 2610/1426 ・・Filtration means

F01N 2610/1433 ・・Pumps

F01N 2610/144 ・・・Control thereof

F01N 2610/1446 ・・Means for damping of pressure fluctuations in the delivery system, e.g. by puffer volumes or throttling

F01N 2610/1453 ・・Sprayers or atomisers; Arrangement thereof in the exhaust apparatus

F01N 2610/146 ・・・Control thereof, e.g. control of injectors or injection valves

F01N 2610/1466 ・・Means for venting air out of conduits or tanks

F01N 2610/1473 ・・Overflow or return means for the substances, e.g. conduits or valves for the return path

F01N 2610/148 ・・Arrangement of sensors

F01N 2610/1486 ・・Means to prevent the substance from freezing

F01N 2610/1493 ・・Means for prevention of purging or clogging

F01N 2900/00 Details of electrical control or of the monitoring of the exhaust gas treating apparatus

F01N 2900/04 ・Methods of control or diagnosing

F01N 2900/0402 ・・using adaptive learning

F01N 2900/0404 ・・using a data filter

F01N 2900/0406 ・・using a model with a division of the catalyst or filter in several cells

F01N 2900/0408 ・・using a feed-back loop

F01N 2900/0411 ・・using a feed-forward control

F01N 2900/0412 ・・using pre-calibrated maps, tables or charts

F01N 2900/0414 ・・using a state observer

F01N 2900/0416 ・・using the state of a sensor, e.g. of an exhaust gas sensor

F01N 2900/0418 ・・using integration or an accumulated value within an elapsed period

F01N 2900/0421 ・・using an increment counter when a predetermined event occurs

F01N 2900/0422 ・・measuring the elapsed time

F01N 2900/06 ・Parameters used for exhaust control or diagnosing

F01N 2900/0601 ・・being estimated

F01N 2900/0602 ・・Electrical exhaust heater signals

F01N 2900/08 ・・said parameters being related to the engine

F01N 2900/10 ・・said parameters being related to the vehicle or its components

F01N 2900/102 ・・・Travelling distance

F01N 2900/104 ・・・Battery status

F01N 2900/12 ・・said parameters being related to the vehicle exterior

F01N 2900/14 ・・said parameters being related to the exhaust gas

F01N 2900/1402 ・・・Exhaust gas composition

F01N 2900/1404 ・・・Exhaust gas temperature

F01N 2900/1406 ・・・Exhaust gas pressure

F01N 2900/1411 ・・・Exhaust gas velocity

F01N 2900/16 ・・said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst

F01N 2900/1602 ・・・Temperature of exhaust gas apparatus

F01N 2900/1606 ・・・Particle filter loading or soot amount

F01N 2900/1611 ・・・Particle filter ash amount

F01N 2900/1612 ・・・SOx amount trapped in catalyst

F01N 2900/1614 ・・・NOx amount trapped in catalyst

F01N 2900/1616 ・・・NH3-slip from catalyst

F01N 2900/1618 ・・・HC-slip from catalyst

F01N 2900/1621 ・・・Catalyst conversion efficiency

F01N 2900/1622 ・・・Catalyst reducing agent absorption capacity or consumption amount

F01N 2900/1624 ・・・Catalyst oxygen storage capacity

F01N 2900/1626 ・・・Catalyst activation temperature

F01N 2900/1628 ・・・Moisture amount in exhaust apparatus

F01N 2900/1631 ・・・Heat amount provided to exhaust apparatus

F01N 2900/18 ・・said parameters being related to the system for adding a substance into the exhaust

F01N 2900/1804 ・・・Properties of secondary air added directly to the exhaust

F01N 2900/1806 ・・・Properties of reducing agent or dosing system

F01N 2900/1808 ・・・・Pressure

F01N 2900/1811 ・・・・Temperature

F01N 2900/1812 ・・・・Flow rate

F01N 2900/1814 ・・・・Tank level

F01N 2900/1818 ・・・・Concentration of the reducing agent

F01N 2900/1821 ・・・・Injector parameters

F01N 2900/1822 ・・・・Pump parameters

F01N 2900/1824 ・・・・Properties of the air to be mixed with added substances, e.g. air pressure or air temperature