F01N1/00	7	Silencing apparatus characterised by method of silencing<br><br><u>NOTE</u><br><br>In this main group, it is desirable to add the indexing codes of F01N2210/00, F01N2230/00, F01N2290/00, F01N2310/00, F01N2450/06, F01N2470/00, F01N2490/00 and F01N2590/00.	F01N1/00	F01N1/00		1012
F01N1/003	8	{by using dead chambers communicating with exhaust gas flow passages}	F01N1/00	F01N1/00		518
F01N1/006	9	{comprising at least one perforated tube extending from inlet to outlet of the silencer}	F01N1/00	F01N1/00		438
F01N1/02	8	by using resonance	F01N1/02	F01N1/02		1874
F01N1/023	9	{Helmholtz resonators}	F01N1/02	F01N1/02		676
F01N1/026	9	{Annular resonance chambers arranged concentrically to an exhaust passage and communicating with it, e.g. via at least one opening in the exhaust passage}	F01N1/02	F01N1/02		227
F01N1/04	9	having sound-absorbing materials in resonance chambers	F01N1/04	F01N1/04		644
F01N1/06	8	by using interference effect	F01N1/06	F01N1/06		812
F01N1/065	9	{by using an active noise source, e.g. speakers}	F01N1/06	F01N1/06		370
F01N1/08	8	by reducing exhaust energy by throttling or whirling	F01N1/08	F01N1/08		1870
F01N1/081	9	{by passing the exhaust gases through a mass of particles}	F01N1/08	F01N1/08		71
F01N1/082	9	{by passing the exhaust gases through porous members}	F01N1/08	F01N1/08		956
F01N1/083	9	{using transversal baffles defining a tortuous path for the exhaust gases or successively throttling exhaust gas flow}	F01N1/08	F01N1/08		990
F01N1/084	9	{the exhaust gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes}	F01N1/08	F01N1/08		1084
F01N1/085	9	{throttling exhaust gas flow using a central core in a flow passage}	F01N1/08	F01N1/08		241
F01N1/086	9	{having means to impart a whirling motion to the exhaust gases (with helically or spirally shaped channels F01N1/12)}	F01N1/08	F01N1/08		207
F01N1/087	10	{using tangential inlets into a circular chamber}	F01N1/08	F01N1/08		130
F01N1/088	10	{using vanes arranged on the flow path or flow tubes with tangentially directed apertures}	F01N1/08	F01N1/08		200
F01N1/089	9	{using two or more expansion chambers in series (F01N1/083, F01N1/084, F01N1/086 take precedence)}	F01N1/08	F01N1/08		1154
F01N1/10	9	in combination with sound-absorbing materials (F01N1/125 takes precedence)	F01N1/10	F01N1/10		1511
F01N1/12	9	using spirally or helically shaped channels (cyclones B04C)	F01N1/12	F01N1/12		682
F01N1/125	10	{in combination with sound-absorbing materials}	F01N1/12	F01N1/12		132
F01N1/14	8	by adding air to exhaust gases {(in tailpipes F01N13/082, F01N13/20)}	F01N1/14	F01N1/14		404
F01N1/16	8	by using movable parts	F01N1/16	F01N1/16		421
F01N1/161	9	{for adjusting resonance or dead chambers or passages to resonance or dead chambers}	F01N1/16	F01N1/16		60
F01N1/163	10	{by means of valves}	F01N1/16	F01N1/16		301
F01N1/165	9	{for adjusting flow area}	F01N1/16	F01N1/16		567
F01N1/166	9	{for changing the flow path through the silencer or for adjusting the dimensions of a chamber or a pipe (F01N1/165 takes precedence)}	F01N1/16	F01N1/16		658
F01N1/168	9	{for controlling or modifying silencing characteristics only}	F01N1/16	F01N1/16		143
F01N1/18	9	having rotary movement	F01N1/18	F01N1/18		424
F01N1/20	9	having oscillating or vibrating movement {(the parts being resilient walls F01N1/22)}	F01N1/20	F01N1/20		107
F01N1/22	9	the parts being resilient walls	F01N1/22	F01N1/22		161
F01N1/24	8	by using sound-absorbing materials (F01N1/04, F01N1/06, F01N1/10, F01N1/14, F01N1/16 take precedence)	F01N1/24	F01N1/24		1485
F01N3/00	7	Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust (electric control F01N9/00; monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N11/00)	F01N3/00	F01N3/00		853
F01N3/005	8	{for draining or otherwise eliminating condensates or moisture accumulating in the apparatus (F01N3/02 takes precedence)}	F01N3/00	F01N3/00		904
F01N3/01	8	by means of electric or electrostatic separators	F01N3/01	F01N3/01		820
F01N3/02	8	for cooling, or for removing solid constituents of, exhaust (by means of electric or electrostatic separators F01N3/01{; mixing air with exhaust in tailpipes F01N13/082, F01N13/20})	F01N3/02	F01N3/02		1457
F01N3/0205	9	{using heat exchangers}	F01N3/02	F01N3/02		882
F01N3/021	9	by means of filters	F01N3/021	F01N3/021		4245
F01N3/0211	10	{Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration}	F01N3/021	F01N3/021		800
F01N3/0212	10	{with one or more perforated tubes surrounded by filtering material, e.g. filter candles}	F01N3/021	F01N3/021		174
F01N3/0214	10	{with filters comprising movable parts, e.g. rotating filters}	F01N3/021	F01N3/021		167
F01N3/0215	10	{the filtering elements having the form of disks or plates}	F01N3/021	F01N3/021		265
F01N3/0217	10	{the filtering elements having the form of hollow cylindrical bodies}	F01N3/021	F01N3/021		310
F01N3/0218	10	{the filtering elements being made from spirally-wound filtering material}	F01N3/021	F01N3/021		66
F01N3/022	10	characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2330/00.	F01N3/022	F01N3/022		1420
F01N3/0222	11	{the structure being monolithic, e.g. honeycombs}<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2330/30.	F01N3/022	F01N3/022		2492
F01N3/0224	11	{the structure being granular}	F01N3/022	F01N3/022		105
F01N3/0226	11	{the structure being fibrous}	F01N3/022	F01N3/022		458
F01N3/0228	11	{the structure being made of foamed rubber or plastics}	F01N3/022	F01N3/022		39
F01N3/023	10	using means for regenerating the filters, e.g. by burning trapped particles	F01N3/023	F01N3/023		3163
F01N3/0231	11	{using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]}	F01N3/023	F01N3/023		667
F01N3/0232	11	{removing incombustible material from a particle filter, e.g. ash}	F01N3/023	F01N3/023		233
F01N3/0233	11	{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}	F01N3/023	F01N3/023		587
F01N3/0234	11	{using heat exchange means in the exhaust line}	F01N3/023	F01N3/023		90
F01N3/0235	11	{using exhaust gas throttling means}	F01N3/023	F01N3/023		224
F01N3/0236	11	{using turbine waste gate valve}	F01N3/023	F01N3/023		43
F01N3/0237	11	{for regenerating ex situ}	F01N3/023	F01N3/023		212
F01N3/0238	11	{for regenerating during engine standstill}	F01N3/023	F01N3/023		124
F01N3/025	11	using fuel burner or by adding fuel to exhaust	F01N3/025	F01N3/025		1285
F01N3/0253	12	{adding fuel to exhaust gases}	F01N3/025	F01N3/025		1513
F01N3/0256	13	{the fuel being ignited by electrical means}	F01N3/025	F01N3/025		325
F01N3/027	11	using electric or magnetic heating means	F01N3/027	F01N3/027		1533
F01N3/0275	12	{using electric discharge means}	F01N3/027	F01N3/027		218
F01N3/028	12	using microwaves	F01N3/028	F01N3/028		251
F01N3/029	11	by adding non-fuel substances to exhaust	F01N3/029	F01N3/029		337
F01N3/0293	12	{injecting substances in exhaust stream}	F01N3/029	F01N3/029		161
F01N3/0296	13	{having means for preheating additional substances}	F01N3/029	F01N3/029		38
F01N3/031	10	having means for by-passing filters, e.g. when clogged or during cold engine start<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2410/00.	F01N3/031	F01N3/031		426
F01N3/032	11	during filter regeneration only	F01N3/032	F01N3/032		318
F01N3/033	10	in combination with other devices {(with adsorbents or absorbents F01N3/0821)}	F01N3/033	F01N3/033		476
F01N3/0335	11	{with exhaust silencers in a single housing}	F01N3/033	F01N3/033		272
F01N3/035	11	with catalytic reactors<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2510/06.	F01N3/035	F01N3/035		5380
F01N3/037	9	by means of inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators	F01N3/037	F01N3/037		591
F01N3/038	9	by means of perforated plates defining expansion chambers associated with condensation and collection chambers	F01N3/038	F01N3/038		93
F01N3/04	9	using liquids	F01N3/04	F01N3/04		2536
F01N3/043	10	{without contact between liquid and exhaust gases}	F01N3/04	F01N3/04		872
F01N3/046	11	{Exhaust manifolds with cooling jacket}	F01N3/04	F01N3/04		463
F01N3/05	9	by means of air, e.g. by mixing exhaust with air (silencers working by addition of air to exhaust F01N1/14; arrangements for the supply of additional air for the thermal or catalytic conversion of noxious components of exhaust F01N3/30)	F01N3/05	F01N3/05		1080
F01N3/055	10	{without contact between air and exhaust gases}	F01N3/05	F01N3/05		159
F01N3/06	8	for extinguishing sparks	F01N3/06	F01N3/06		586
F01N3/08	8	for rendering innocuous (using electric or electrostatic separators F01N3/01; chemical aspects B01D53/92)	F01N3/08	F01N3/08		1732
F01N3/0807	9	{by using absorbents or adsorbents}	F01N3/08	F01N3/08		795
F01N3/0814	10	{combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts}	F01N3/08	F01N3/08		2996
F01N3/0821	10	{combined with particulate filter}	F01N3/08	F01N3/08		1023
F01N3/0828	10	{characterised by the absorbed or adsorbed substances}	F01N3/08	F01N3/08		148
F01N3/0835	11	{Hydrocarbons}	F01N3/08	F01N3/08		781
F01N3/0842	11	{Nitrogen oxides}	F01N3/08	F01N3/08		3851
F01N3/085	11	{Sulfur or sulfur oxides}	F01N3/08	F01N3/08		413
F01N3/0857	11	{Carbon oxides}	F01N3/08	F01N3/08		395
F01N3/0864	11	{Oxygen}	F01N3/08	F01N3/08		272
F01N3/0871	10	{using means for controlling, e.g. purging, the absorbents or adsorbents}	F01N3/08	F01N3/08		1291
F01N3/0878	11	{Bypassing absorbents or adsorbents}<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2410/00.	F01N3/08	F01N3/08		530
F01N3/0885	11	{Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps}	F01N3/08	F01N3/08		916
F01N3/0892	9	{Electric or magnetic treatment, e.g. dissociation of noxious components}	F01N3/08	F01N3/08		786
F01N3/10	9	by thermal or catalytic conversion of noxious components of exhaust	F01N3/10	F01N3/10		2347
F01N3/101	10	{Three-way catalysts}	F01N3/10	F01N3/10		2291
F01N3/103	10	{Oxidation catalysts for HC and CO only}	F01N3/10	F01N3/10		1855
F01N3/105	10	{General auxiliary catalysts, e.g. upstream or downstream of the main catalyst}	F01N3/10	F01N3/10		196
F01N3/106	11	{Auxiliary oxidation catalysts}	F01N3/10	F01N3/10		1942
F01N3/108	11	{Auxiliary reduction catalysts}	F01N3/10	F01N3/10		163
F01N3/18	10	characterised by methods of operation; Control	F01N3/18	F01N3/18		684
F01N3/20	11	specially adapted for catalytic conversion (F01N3/22 takes precedence)	F01N3/20	F01N3/20		2989
F01N3/2006	12	{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 F02D41/0235)}	F01N3/20	F01N3/20		2181
F01N3/2013	13	{using electric or magnetic heating means}	F01N3/20	F01N3/20		2015
F01N3/202	14	{using microwaves}	F01N3/20	F01N3/20		106
F01N3/2026	14	{directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect}	F01N3/20	F01N3/20		806
F01N3/2033	13	{using a fuel burner or introducing fuel into exhaust duct}	F01N3/20	F01N3/20		1143
F01N3/204	13	{using an exhaust gas igniter, e.g. a spark or glow plug, without introducing fuel into exhaust duct}	F01N3/20	F01N3/20		134
F01N3/2046	13	{Periodically cooling catalytic reactors}	F01N3/20	F01N3/20		528
F01N3/2053	12	{By-passing catalytic reactors, e.g. to prevent overheating}<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2410/00.	F01N3/20	F01N3/20		1062
F01N3/206	12	{Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents}	F01N3/20	F01N3/20		1441
F01N3/2066	13	{Selective catalytic reduction [SCR]}<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2610/00.	F01N3/20	F01N3/20		11562
F01N3/2073	14	{Means for generating a reducing substance from the exhaust gases}	F01N3/20	F01N3/20		549
F01N3/208	13	{Control of selective catalytic reduction [SCR], e.g. by adjusting the dosing of reducing agent}	F01N3/20	F01N3/20		4809
F01N3/2086	12	{Activating the catalyst by light, photo-catalysts}	F01N3/20	F01N3/20		128
F01N3/2093	12	{Periodically blowing a gas through the converter, e.g. in a direction opposite to exhaust gas flow or by reversing exhaust gas flow direction}	F01N3/20	F01N3/20		159
F01N3/22	11	Control of additional air supply only, e.g. using by-passes or variable air pump drives	F01N3/22	F01N3/22		1641
F01N3/222	12	{using electric valves only}	F01N3/22	F01N3/22		469
F01N3/225	12	{Electric control of additional air supply}	F01N3/22	F01N3/22		182
F01N3/227	12	{using pneumatically operated valves, e.g. membrane valves}	F01N3/22	F01N3/22		392
F01N3/24	10	characterised by constructional aspects of converting apparatus (filtering in combination with catalytic reactors F01N3/035)	F01N3/24	F01N3/24		1079
F01N3/26	11	Construction of thermal reactors	F01N3/26	F01N3/26		1073
F01N3/28	11	Construction of catalytic reactors	F01N3/28	F01N3/28		4322
F01N3/2803	12	{characterised by structure, by material or by manufacturing of catalyst support}	F01N3/28	F01N3/28		1498
F01N3/2807	13	{Metal other than sintered metal (F01N3/2832 and F01N3/2835 take precedence)}	F01N3/28	F01N3/28		504
F01N3/281	14	{Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates}	F01N3/28	F01N3/28		1151
F01N3/2814	15	{all sheets, plates or foils being corrugated}	F01N3/28	F01N3/28		310
F01N3/2817	15	{only with non-corrugated sheets, plates or foils}	F01N3/28	F01N3/28		80
F01N3/2821	15	{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}	F01N3/28	F01N3/28		337
F01N3/2825	13	{Ceramics (F01N3/2832, F01N3/2835 take precedence)}	F01N3/28	F01N3/28		389
F01N3/2828	14	{Ceramic multi-channel monoliths, e.g. honeycombs}	F01N3/28	F01N3/28		1669
F01N3/2832	13	{granular, e.g. pellets}	F01N3/28	F01N3/28		191
F01N3/2835	13	{fibrous}	F01N3/28	F01N3/28		238
F01N3/2839	12	{Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration}<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2350/02.	F01N3/28	F01N3/28		453
F01N3/2842	13	{specially adapted for monolithic supports, e.g. of honeycomb type (F01N3/2853&#160;-&#160;F01N3/2871 take precedence)}	F01N3/28	F01N3/28		633
F01N3/2846	13	{specially adapted for granular supports, e.g. pellets}	F01N3/28	F01N3/28		370
F01N3/285	13	{specially adapted for fibrous supports, e.g. held in place by screens}	F01N3/28	F01N3/28		75
F01N3/2853	13	{using mats or gaskets between catalyst body and housing}	F01N3/28	F01N3/28		1307
F01N3/2857	14	{the mats or gaskets being at least partially made of intumescent material, e.g. unexpanded vermiculite}	F01N3/28	F01N3/28		412
F01N3/286	14	{the mats or gaskets having corrugations or cavities}	F01N3/28	F01N3/28		10
F01N3/2864	14	{the mats or gaskets comprising two or more insulation layers}	F01N3/28	F01N3/28		251
F01N3/2867	14	{the mats or gaskets being placed at the front or end face of catalyst body}	F01N3/28	F01N3/28		373
F01N3/2871	14	{the mats or gaskets having an additional, e.g. non-insulating or non-cushioning layer, a metal foil or an adhesive layer}	F01N3/28	F01N3/28		43
F01N3/2875	13	{by using elastic means, e.g. spring leaves, for retaining catalyst body in the housing (F01N3/2853&#160;-&#160;F01N3/2871 take precedence)}	F01N3/28	F01N3/28		179
F01N3/2878	13	{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}	F01N3/28	F01N3/28		46
F01N3/2882	12	{Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices (combined with absorbents or adsorbents only F01N3/0814; combined with particulate filters F01N3/035)}	F01N3/28	F01N3/28		1193
F01N3/2885	13	{with exhaust silencers in a single housing}	F01N3/28	F01N3/28		614
F01N3/2889	13	{with heat exchangers in a single housing}	F01N3/28	F01N3/28		393
F01N3/2892	12	{Exhaust flow directors or the like, e.g. upstream of catalytic device}	F01N3/28	F01N3/28		2640
F01N3/2896	12	{Liquid catalyst carrier}	F01N3/28	F01N3/28		167
F01N3/30	11	Arrangements for supply of additional air (control, e.g. using by-passes or variable air pump drives, F01N3/22)	F01N3/30	F01N3/30		1557
F01N3/303	12	{Filtering additional air}	F01N3/30	F01N3/30		78
F01N3/306	12	{Preheating additional air}	F01N3/30	F01N3/30		219
F01N3/32	12	using air pump (using jet air pumps F01N3/34; pumps in general F04)	F01N3/32	F01N3/32		925
F01N3/323	13	{Electrically driven air pumps}	F01N3/32	F01N3/32		185
F01N3/326	13	{Engine-driven air pumps}	F01N3/32	F01N3/32		62
F01N3/34	12	using air conduits or jet air pumps, e.g. near the engine exhaust port	F01N3/34	F01N3/34		799
F01N3/36	11	Arrangements for supply of additional fuel<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2610/14.	F01N3/36	F01N3/36		1340
F01N3/38	11	Arrangements for igniting	F01N3/38	F01N3/38		541
F01N5/00	7	Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy (using kinetic or wave energy of exhaust gases in exhaust systems for charging F02B)	F01N5/00	F01N5/00		791
F01N5/02	8	the devices using heat	F01N5/02	F01N5/02		4180
F01N5/025	9	{the device being thermoelectric generators}	F01N5/02	F01N5/02		978
F01N5/04	8	the devices using kinetic energy	F01N5/04	F01N5/04		1219
F01N9/00	7	Electrical control of exhaust gas treating apparatus (monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N11/00; conjoint electrical control of two or more combustion engine functions F02D43/00)<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2900/00.	F01N9/00	F01N9/00		6400
F01N9/002	8	{of filter regeneration}	F01N9/00	F01N9/00		4005
F01N9/005	8	{using models instead of sensors to determine operating characteristics of exhaust systems, e.g. calculating catalyst temperature instead of measuring it directly}	F01N9/00	F01N9/00		1101
F01N9/007	8	{Storing data relevant to operation of exhaust systems for later retrieval and analysis, e.g. to research exhaust system malfunctions}	F01N9/00	F01N9/00		212
F01N11/00	7	Monitoring or diagnostic devices for exhaust-gas treatment apparatus<br><br><u>NOTE</u><br><br>In this subgroup, it is desirable to add the indexing codes of F01N2550/00 and F01N2900/00.	F01N11/00	F01N11/00		6029
F01N11/002	8	{the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus}	F01N11/00	F01N11/00		3083
F01N11/005	9	{the temperature or pressure being estimated, e.g. by means of a theoretical model}	F01N11/00	F01N11/00		540
F01N11/007	8	{the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus}	F01N11/00	F01N11/00		1946
F01N13/00	7	Exhaust or silencing apparatus characterised by constructional features	F01N13/00	F01N13/00		1991
F01N13/001	8	{Exhaust gas flow channels or chambers being at least partly formed in the structural parts of the engine or machine (using structural parts of the vehicle B60K13/06)}	F01N13/00	F01N13/00		357
F01N13/002	8	{Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines}	F01N13/00	F01N13/00		465
F01N13/004	8	{specially adapted for marine propulsion, i.e. for receiving simultaneously engine exhaust gases and engine cooling water (for submerged exhausting F01N13/12; treating exhaust by using liquids F01N3/04)}	F01N13/00	F01N13/00		726
F01N13/005	9	{with parts constructed of non-metallic material, e.g. of rubber}	F01N13/00	F01N13/00		40
F01N13/007	8	{Apparatus used as intake or exhaust silencer}	F01N13/00	F01N13/00		832
F01N13/008	8	{Mounting or arrangement of exhaust sensors in or on exhaust apparatus (sensor arrangements for engine control F02D41/1439)}	F01N13/00	F01N13/00		1599
F01N13/009	8	{having two or more separate purifying devices arranged in series}	F01N13/00	F01N13/00		6161
F01N13/0093	9	{the purifying devices are of the same type}	F01N13/00	F01N13/00		1654
F01N13/0097	9	{the purifying devices are arranged in a single housing}	F01N13/00	F01N13/00		3239
F01N13/011	8	{having two or more purifying devices arranged in parallel}	F01N13/00	F01N13/011		1270
F01N13/017	9	{the purifying devices are arranged in a single housing}	F01N13/00	F01N13/017		623
F01N13/02	8	having two or more separate silencers in series	F01N13/02	F01N13/02		538
F01N13/04	8	having two or more silencers in parallel, e.g. having interconnections for multi-cylinder engines	F01N13/04	F01N13/04		353
F01N13/06	8	specially adapted for star-arrangement of cylinders, e.g. exhaust manifolds	F01N13/06	F01N13/06		92
F01N13/08	8	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 B08B15/00, on highways E01C1/005)}	F01N13/08	F01N13/08		5704
F01N13/082	9	{of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation (F01N13/20 takes precedence)}	F01N13/08	F01N13/08		1839
F01N13/085	9	{having means preventing foreign matter from entering exhaust conduit}	F01N13/08	F01N13/08		487
F01N13/087	9	{having valves upstream of silencing apparatus for by-passing at least part of exhaust directly to atmosphere (valves for changing flow path through the silencer F01N1/166)}	F01N13/08	F01N13/08		286
F01N13/10	9	of exhaust manifolds {(with cooling jacket F01N3/046)}	F01N13/10	F01N13/10		2494
F01N13/102	10	{having thermal insulation}	F01N13/10	F01N13/10		834
F01N13/105	10	{having the form of a chamber directly connected to the cylinder head, e.g. without having tubes connected between cylinder head and chamber}	F01N13/10	F01N13/10		149
F01N13/107	10	{More than one exhaust manifold or exhaust collector}	F01N13/10	F01N13/10		1178
F01N13/12	8	specially adapted for submerged exhausting	F01N13/12	F01N13/12		574
F01N13/14	8	having thermal insulation {(exhaust manifolds F01N13/102)}	F01N13/14	F01N13/14		2499
F01N13/141	9	{Double-walled exhaust pipes or housings}	F01N13/14	F01N13/14		607
F01N13/143	10	{with air filling the space between both walls}	F01N13/14	F01N13/14		228
F01N13/145	10	{with a gas other than air filling the space between both walls}	F01N13/14	F01N13/14		31
F01N13/146	10	{with vacuum in the space between both walls}	F01N13/14	F01N13/14		40
F01N13/148	9	{Multiple layers of insulating material}	F01N13/14	F01N13/14		204
F01N13/16	8	Selection of particular materials	F01N13/16	F01N13/16		1729
F01N13/18	8	Construction facilitating manufacture, assembly, or disassembly	F01N13/18	F01N13/18		1951
F01N13/1805	9	{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)}	F01N13/18	F01N13/18		2541
F01N13/1811	10	{with means permitting relative movement, e.g. compensation of thermal expansion or vibration}	F01N13/18	F01N13/18		1367
F01N13/1816	11	{the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes}	F01N13/18	F01N13/18		1049
F01N13/1822	11	{for fixing exhaust pipes or devices to vehicle body}	F01N13/18	F01N13/18		901
F01N13/1827	10	{Sealings specially adapted for exhaust systems (sealings in general F16J15/00)}	F01N13/18	F01N13/18		981
F01N13/1833	9	{specially adapted for small internal combustion engines, e.g. used in model applications}	F01N13/18	F01N13/18		62
F01N13/1838	9	{characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles}	F01N13/18	F01N13/18		1380
F01N13/1844	10	{Mechanical joints}	F01N13/18	F01N13/18		845
F01N13/185	11	{the connection being realised by deforming housing, tube, baffle, plate, or parts thereof}	F01N13/18	F01N13/18		478
F01N13/1855	11	{the connection being realised by using bolts, screws, rivets or the like}	F01N13/18	F01N13/18		1336
F01N13/1861	9	{the assembly using parts formed by casting or moulding}	F01N13/18	F01N13/18		238
F01N13/1866	10	{the channels or tubes thereof being made integrally with the housing}	F01N13/18	F01N13/18		70
F01N13/1872	9	{the assembly using stamp-formed parts or otherwise deformed sheet-metal}	F01N13/18	F01N13/18		761
F01N13/1877	10	{the channels or tubes thereof being made integrally with the housing}	F01N13/18	F01N13/18		100
F01N13/1883	9	{manufactured by hydroforming}	F01N13/18	F01N13/18		82
F01N13/1888	9	{the housing of the assembly consisting of two or more parts, e.g. two half-shells}	F01N13/18	F01N13/18		740
F01N13/1894	10	{the parts being assembled in longitudinal direction}	F01N13/18	F01N13/18		513
F01N13/20	8	having flared outlets, e.g. of fish-tail shape	F01N13/20	F01N13/20		430
F01N99/00	7	Subject matter not provided for in other groups of this subclass	F01N99/00	F01N99/00		2
F01N2210/00	7	Combination of methods of silencing	CPCONLY	F01N2210/00		28
F01N2210/02	8	Resonance and interference	CPCONLY	F01N2210/02		47
F01N2210/04	8	Throttling-expansion and resonance	CPCONLY	F01N2210/04		126
F01N2210/06	8	Throttling-expansion and interference	CPCONLY	F01N2210/06		36
F01N2230/00	7	Combination of silencers and other devices	CPCONLY	F01N2230/00		118
F01N2230/02	8	Exhaust filters	CPCONLY	F01N2230/02		345
F01N2230/04	8	Catalytic converters	CPCONLY	F01N2230/04		674
F01N2230/06	8	Spark arresters	CPCONLY	F01N2230/06		109
F01N2230/08	8	Thermal reactors	CPCONLY	F01N2230/08		41
F01N2240/00	7	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 F01N2230/00 or F01N2250/00, one of the devices being	CPCONLY	F01N2240/00		67
F01N2240/02	8	a heat exchanger	CPCONLY	F01N2240/02		1977
F01N2240/04	8	an electric, e.g. electrostatic, device other than a heater	CPCONLY	F01N2240/04		311
F01N2240/05	8	a magnetic, e.g. electromagnetic, device other than a valve	CPCONLY	F01N2240/05		95
F01N2240/06	8	an inertial, e.g. centrifugal, device	CPCONLY	F01N2240/06		86
F01N2240/10	8	a heat accumulator	CPCONLY	F01N2240/10		199
F01N2240/12	8	a thermal reactor	CPCONLY	F01N2240/12		94
F01N2240/14	8	a fuel burner	CPCONLY	F01N2240/14		719
F01N2240/16	8	an electric heater, i.e. a resistance heater	CPCONLY	F01N2240/16		1752
F01N2240/18	8	an adsorber or absorber	CPCONLY	F01N2240/18		360
F01N2240/20	8	a flow director or deflector	CPCONLY	F01N2240/20		2662
F01N2240/22	8	a condensation chamber	CPCONLY	F01N2240/22		238
F01N2240/25	8	an ammonia generator	CPCONLY	F01N2240/25		292
F01N2240/26	8	an exhaust gas reservoir, e.g. emission buffer	CPCONLY	F01N2240/26		126
F01N2240/28	8	a plasma reactor	CPCONLY	F01N2240/28		489
F01N2240/30	8	a fuel reformer	CPCONLY	F01N2240/30		533
F01N2240/32	8	a fuel cell	CPCONLY	F01N2240/32		54
F01N2240/34	8	an electrolyser	CPCONLY	F01N2240/34		60
F01N2240/36	8	an exhaust flap	CPCONLY	F01N2240/36		1129
F01N2240/38	8	an ozone (O3) generator, e.g. for adding ozone after generation of ozone from air	CPCONLY	F01N2240/38		163
F01N2240/40	8	a hydrolysis catalyst	CPCONLY	F01N2240/40		322
F01N2250/00	7	Combinations of different methods of purification	CPCONLY	F01N2250/00		65
F01N2250/02	8	filtering and catalytic conversion	CPCONLY	F01N2250/02		1467
F01N2250/04	8	afterburning and catalytic conversion	CPCONLY	F01N2250/04		200
F01N2250/06	8	afterburning and filtering	CPCONLY	F01N2250/06		110
F01N2250/08	8	filtering and inertial particulate separation	CPCONLY	F01N2250/08		61
F01N2250/10	8	cooling and filtering	CPCONLY	F01N2250/10		124
F01N2250/12	8	absorption or adsorption, and catalytic conversion	CPCONLY	F01N2250/12		815
F01N2250/14	8	absorption or adsorption, and filtering	CPCONLY	F01N2250/14		312
F01N2260/00	7	Exhaust treating devices having provisions not otherwise provided for	CPCONLY	F01N2260/00		80
F01N2260/02	8	for cooling the device	CPCONLY	F01N2260/02		315
F01N2260/022	9	using air	CPCONLY	F01N2260/022		432
F01N2260/024	9	using a liquid	CPCONLY	F01N2260/024		446
F01N2260/04	8	for regeneration or reactivation, e.g. of catalyst	CPCONLY	F01N2260/04		434
F01N2260/06	8	for improving exhaust evacuation or circulation, or reducing back-pressure	CPCONLY	F01N2260/06		598
F01N2260/08	8	for preventing heat loss or temperature drop, using other means than layers of heat-insulating material	CPCONLY	F01N2260/08		341
F01N2260/10	8	for avoiding stress caused by expansions or contractions due to temperature variations	CPCONLY	F01N2260/10		594
F01N2260/12	8	for resisting high pressure	CPCONLY	F01N2260/12		16
F01N2260/14	8	for modifying or adapting flow area or back-pressure	CPCONLY	F01N2260/14		757
F01N2260/16	8	for reducing exhaust flow pulsations	CPCONLY	F01N2260/16		117
F01N2260/18	8	for improving rigidity, e.g. by wings, ribs	CPCONLY	F01N2260/18		385
F01N2260/20	8	for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device	CPCONLY	F01N2260/20		610
F01N2260/22	8	for preventing theft of exhaust parts or devices, e.g. anti-theft arrangements	CPCONLY	F01N2260/22		37
F01N2260/24	8	for identifying exhaust parts or devices, e.g. by labels, stickers or directly printing	CPCONLY	F01N2260/24		39
F01N2260/26	8	for preventing enter of dirt into the device	CPCONLY	F01N2260/26		82
F01N2270/00	7	Mixing air with exhaust gases	CPCONLY	F01N2270/00		161
F01N2270/02	8	for cooling exhaust gases or the apparatus	CPCONLY	F01N2270/02		245
F01N2270/04	8	for afterburning	CPCONLY	F01N2270/04		235
F01N2270/06	8	for silencing	CPCONLY	F01N2270/06		17
F01N2270/08	8	for evacuation of exhaust gases, e.g. in tail-pipes	CPCONLY	F01N2270/08		91
F01N2270/10	8	for rendering exhaust innocuous, e.g. by dilution	CPCONLY	F01N2270/10		88
F01N2290/00	7	Movable parts or members in exhaust systems for other than for control purposes	CPCONLY	F01N2290/00		158
F01N2290/02	8	with continuous rotary movement	CPCONLY	F01N2290/02		74
F01N2290/04	9	driven by exhaust gases	CPCONLY	F01N2290/04		228
F01N2290/06	9	driven by auxiliary drive	CPCONLY	F01N2290/06		208
F01N2290/08	8	with oscillating or vibrating movement	CPCONLY	F01N2290/08		47
F01N2290/10	9	actuated by pressure of exhaust gases, e.g. exhaust pulses	CPCONLY	F01N2290/10		132
F01N2310/00	7	Selection of sound absorbing or insulating material	CPCONLY	F01N2310/00		175
F01N2310/02	8	Mineral wool, e.g. glass wool, rock wool, asbestos or the like	CPCONLY	F01N2310/02		734
F01N2310/04	8	Metallic wool, e.g. steel wool, copper wool or the like	CPCONLY	F01N2310/04		184
F01N2310/06	8	Porous ceramics	CPCONLY	F01N2310/06		152
F01N2310/08	8	Exfoliated vermiculite, e.g. zonolite, coke, pumice	CPCONLY	F01N2310/08		17
F01N2310/10	8	Plastic foam	CPCONLY	F01N2310/10		32
F01N2310/12	8	Granular material	CPCONLY	F01N2310/12		50
F01N2310/14	8	Wire mesh fabric, woven glass cloth or the like	CPCONLY	F01N2310/14		221
F01N2330/00	7	Structure of catalyst support or particle filter	CPCONLY	F01N2330/00		207
F01N2330/02	8	Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal	CPCONLY	F01N2330/02		1054
F01N2330/04	9	Methods of manufacturing	CPCONLY	F01N2330/04		480
F01N2330/06	8	Ceramic, e.g. monoliths	CPCONLY	F01N2330/06		2381
F01N2330/08	8	Granular material	CPCONLY	F01N2330/08		614
F01N2330/10	8	Fibrous material, e.g. mineral or metallic wool	CPCONLY	F01N2330/10		598
F01N2330/101	9	using binders, e.g. to form a permeable mat, paper or the like	CPCONLY	F01N2330/101		60
F01N2330/102	10	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	CPCONLY	F01N2330/102		68
F01N2330/12	8	Metallic wire mesh fabric or knitting	CPCONLY	F01N2330/12		406
F01N2330/14	8	Sintered material	CPCONLY	F01N2330/14		316
F01N2330/18	8	Composite material	CPCONLY	F01N2330/18		51
F01N2330/20	8	Plastics, e.g. polymers, polyester, polyurethane	CPCONLY	F01N2330/20		64
F01N2330/22	8	Metal foam	CPCONLY	F01N2330/22		97
F01N2330/30	8	Honeycomb supports characterised by their structural details	CPCONLY	F01N2330/30		645
F01N2330/32	9	characterised by the shape, form or number of corrugations of plates, sheets or foils	CPCONLY	F01N2330/32		185
F01N2330/321	10	with two or more different kinds of corrugations in the same substrate	CPCONLY	F01N2330/321		113
F01N2330/322	10	Corrugations of trapezoidal form	CPCONLY	F01N2330/322		65
F01N2330/323	10	Corrugations of saw-tooth or triangular form	CPCONLY	F01N2330/323		84
F01N2330/324	10	Corrugations of rectangular form	CPCONLY	F01N2330/324		37
F01N2330/325	10	Corrugations of omega form	CPCONLY	F01N2330/325		14
F01N2330/34	9	with flow channels of polygonal cross section	CPCONLY	F01N2330/34		269
F01N2330/36	9	with flow channels formed by tubes	CPCONLY	F01N2330/36		45
F01N2330/38	9	flow channels with means to enhance flow mixing,(e.g. protrusions or projections)	CPCONLY	F01N2330/38		303
F01N2330/40	9	made of a single sheet, foil or plate	CPCONLY	F01N2330/40		66
F01N2330/42	9	made of three or more different sheets, foils or plates stacked one on the other	CPCONLY	F01N2330/42		70
F01N2330/44	9	made of stacks of sheets, plates or foils that are folded in S-form	CPCONLY	F01N2330/44		112
F01N2330/48	9	characterised by the number of flow passages, e.g. cell density	CPCONLY	F01N2330/48		348
F01N2330/60	8	Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same housing	CPCONLY	F01N2330/60		245
F01N2340/00	7	Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the exhaust apparatus; Spatial arrangements of exhaust apparatuses	CPCONLY	F01N2340/00		312
F01N2340/02	8	Distance of the exhaust apparatus to the engine or between two exhaust apparatuses	CPCONLY	F01N2340/02		400
F01N2340/04	8	Arrangement of the exhaust system relative to a vehicle or parts thereof	CPCONLY	F01N2340/04		604
F01N2340/06	8	Arrangement of the exhaust apparatus relative to the turbine of a turbocharger	CPCONLY	F01N2340/06		717
F01N2340/08	8	Series-connected exhaust apparatuses mounted in a side-by-side spatial arrangement, e.g. U- or S-shaped	CPCONLY	F01N2340/08		3
F01N2350/00	7	Arrangements for fitting catalyst support or particle filter element in the housing	CPCONLY	F01N2350/00		112
F01N2350/02	8	Fitting ceramic monoliths in a metallic housing	CPCONLY	F01N2350/02		208
F01N2350/04	9	with means compensating thermal expansion	CPCONLY	F01N2350/04		243
F01N2350/06	9	with means preventing gas flow by-pass or leakage	CPCONLY	F01N2350/06		179
F01N2350/08	8	with means for compressing granular material	CPCONLY	F01N2350/08		36
F01N2370/00	7	Selection of materials for exhaust purification	CPCONLY	F01N2370/00		125
F01N2370/02	8	used in catalytic reactors	CPCONLY	F01N2370/02		833
F01N2370/04	9	Zeolitic material	CPCONLY	F01N2370/04		668
F01N2370/22	8	used in non-catalytic purification apparatus	CPCONLY	F01N2370/22		204
F01N2370/24	9	Zeolitic material	CPCONLY	F01N2370/24		119
F01N2370/30	9	Materials having magnetic properties	CPCONLY	F01N2370/30		15
F01N2370/40	8	Activated carbon or charcoal	CPCONLY	F01N2370/40		205
F01N2390/00	7	Arrangements for controlling or regulating exhaust apparatus	CPCONLY	F01N2390/00		157
F01N2390/02	8	using electric components only	CPCONLY	F01N2390/02		323
F01N2390/04	8	using electropneumatic components	CPCONLY	F01N2390/04		52
F01N2390/06	8	using pneumatic components only	CPCONLY	F01N2390/06		75
F01N2390/08	8	using mechanical components only, e.g. actuated manually	CPCONLY	F01N2390/08		57
F01N2410/00	7	By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device	CPCONLY	F01N2410/00		865
F01N2410/02	8	in case of high temperature, e.g. overheating of catalytic reactor	CPCONLY	F01N2410/02		318
F01N2410/03	8	in case of low temperature	CPCONLY	F01N2410/03		187
F01N2410/04	8	during regeneration period, e.g. of particle filter	CPCONLY	F01N2410/04		229
F01N2410/06	8	at cold starting	CPCONLY	F01N2410/06		239
F01N2410/08	8	in case of clogging, e.g. of particle filter	CPCONLY	F01N2410/08		63
F01N2410/10	8	for reducing flow resistance, e.g. to obtain more engine power	CPCONLY	F01N2410/10		129
F01N2410/12	8	in case of absorption, adsorption or desorption of exhaust gas constituents	CPCONLY	F01N2410/12		232
F01N2410/14	8	in case of excessive pressure, e.g. using a safety valve	CPCONLY	F01N2410/14		138
F01N2430/00	7	Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics	CPCONLY	F01N2430/00		475
F01N2430/02	8	by cutting out a part of engine cylinders	CPCONLY	F01N2430/02		242
F01N2430/04	8	by adding non-fuel substances to combustion air or fuel, e.g. additives	CPCONLY	F01N2430/04		223
F01N2430/06	8	by varying fuel-air ratio, e.g. by enriching fuel-air mixture	CPCONLY	F01N2430/06		1419
F01N2430/08	8	by modifying ignition or injection timing	CPCONLY	F01N2430/08		419
F01N2430/085	9	at least a part of the injection taking place during expansion or exhaust stroke	CPCONLY	F01N2430/085		349
F01N2430/10	8	by modifying inlet or exhaust valve timing	CPCONLY	F01N2430/10		270
F01N2450/00	7	Methods or apparatus for fitting, inserting or repairing different elements	CPCONLY	F01N2450/00		193
F01N2450/02	8	Fitting monolithic blocks into the housing	CPCONLY	F01N2450/02		427
F01N2450/04	8	Filling or emptying a chamber with granular material	CPCONLY	F01N2450/04		132
F01N2450/06	8	Inserting sound absorbing material into a chamber	CPCONLY	F01N2450/06		92
F01N2450/08	8	Repairing the housing or pipe-joints	CPCONLY	F01N2450/08		62
F01N2450/10	8	Fitting temporarily exhaust apparatus on exhaust conduit, e.g. in confined environment, garage or the like	CPCONLY	F01N2450/10		104
F01N2450/16	8	by using threaded joints	CPCONLY	F01N2450/16		152
F01N2450/18	8	by using quick-active type locking mechanisms, e.g. clips	CPCONLY	F01N2450/18		274
F01N2450/20	8	by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof	CPCONLY	F01N2450/20		577
F01N2450/22	8	by welding or brazing	CPCONLY	F01N2450/22		1546
F01N2450/24	8	by bolts, screws, rivets or the like	CPCONLY	F01N2450/24		1462
F01N2450/26	8	by bayonet fittings	CPCONLY	F01N2450/26		124
F01N2450/28	8	by using adhesive material, e.g. cement	CPCONLY	F01N2450/28		298
F01N2450/30	8	Removable or rechangeable blocks or cartridges, e.g. for filters	CPCONLY	F01N2450/30		700
F01N2450/40	8	Retrofitting exhaust apparatus	CPCONLY	F01N2450/40		133
F01N2470/00	7	Structure or shape of exhaust gas passages, pipes or tubes	CPCONLY	F01N2470/00		260
F01N2470/02	8	Tubes being perforated	CPCONLY	F01N2470/02		1514
F01N2470/04	9	characterised by shape, disposition or dimensions of apertures	CPCONLY	F01N2470/04		327
F01N2470/06	8	Tubes being formed by assembly of stamped or otherwise deformed sheet-metal	CPCONLY	F01N2470/06		343
F01N2470/08	8	Exhaust gas passages being formed between the walls of an outer shell and an inner chamber	CPCONLY	F01N2470/08		256
F01N2470/10	8	Tubes having non-circular cross section	CPCONLY	F01N2470/10		589
F01N2470/12	8	Tubes being corrugated	CPCONLY	F01N2470/12		453
F01N2470/14	8	Plurality of outlet tubes, e.g. in parallel or with different length	CPCONLY	F01N2470/14		432
F01N2470/16	8	Plurality of inlet tubes, e.g. discharging into different chambers	CPCONLY	F01N2470/16		408
F01N2470/18	8	the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus	CPCONLY	F01N2470/18		1093
F01N2470/20	8	Dimensional characteristics of tubes, e.g. length, diameter	CPCONLY	F01N2470/20		438
F01N2470/22	8	Inlet and outlet tubes being positioned on the same side of the apparatus	CPCONLY	F01N2470/22		201
F01N2470/24	8	Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled	CPCONLY	F01N2470/24		1152
F01N2470/26	8	Tubes being formed by extrusion, drawing or rolling	CPCONLY	F01N2470/26		92
F01N2470/28	8	Tubes being formed by moulding or casting x	CPCONLY	F01N2470/28		86
F01N2470/30	8	Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow	CPCONLY	F01N2470/30		654
F01N2490/00	7	Structure, disposition or shape of gas-chambers	CPCONLY	F01N2490/00		69
F01N2490/02	8	Two or more expansion chambers in series connected by means of tubes	CPCONLY	F01N2490/02		145
F01N2490/04	9	the gases flowing longitudinally from inlet to outlet only in one direction	CPCONLY	F01N2490/04		153
F01N2490/06	9	the gases flowing longitudinally from inlet to outlet in opposite directions	CPCONLY	F01N2490/06		333
F01N2490/08	8	Two or more expansion chambers in series separated by apertured walls only	CPCONLY	F01N2490/08		333
F01N2490/10	8	Two or more expansion chambers in parallel	CPCONLY	F01N2490/10		53
F01N2490/12	8	Chambers having variable volumes	CPCONLY	F01N2490/12		38
F01N2490/14	8	Dead or resonance chambers connected to gas flow tube by relatively short side-tubes	CPCONLY	F01N2490/14		144
F01N2490/15	8	Plurality of resonance or dead chambers	CPCONLY	F01N2490/15		343
F01N2490/155	9	being disposed one after the other in flow direction	CPCONLY	F01N2490/155		915
F01N2490/16	8	Chambers with particular shapes, e.g. spherical	CPCONLY	F01N2490/16		216
F01N2490/18	8	Dimensional characteristics of gas chambers	CPCONLY	F01N2490/18		109
F01N2490/20	8	Chambers being formed inside the exhaust pipe without enlargement of the cross section of the pipe, e.g. resonance chambers	CPCONLY	F01N2490/20		249
F01N2510/00	7	Surface coverings	CPCONLY	F01N2510/00		212
F01N2510/02	8	for thermal insulation	CPCONLY	F01N2510/02		221
F01N2510/04	8	for sound absorption	CPCONLY	F01N2510/04		37
F01N2510/06	8	for exhaust purification, e.g. catalytic reaction	CPCONLY	F01N2510/06		1137
F01N2510/061	9	usable with leaded fuels	CPCONLY	F01N2510/061		26
F01N2510/063	9	zeolites	CPCONLY	F01N2510/063		284
F01N2510/065	9	for reducing soot ignition temperature	CPCONLY	F01N2510/065		173
F01N2510/067	9	usable with sulfurised fuels	CPCONLY	F01N2510/067		16
F01N2510/068	9	characterised by the distribution of the catalytic coatings	CPCONLY	F01N2510/068		308
F01N2510/0682	10	having a discontinuous, uneven or partially overlapping coating of catalytic material, e.g. higher amount of material upstream than downstream or vice versa	CPCONLY	F01N2510/0682		568
F01N2510/0684	10	having more than one coating layer, e.g. multi-layered coatings	CPCONLY	F01N2510/0684		469
F01N2510/08	8	for corrosion prevention	CPCONLY	F01N2510/08		205
F01N2510/10	8	for preventing carbon deposits, e.g. chromium	CPCONLY	F01N2510/10		25
F01N2510/12	8	for smell removal	CPCONLY	F01N2510/12		21
F01N2510/14	8	for dehydrating	CPCONLY	F01N2510/14		17
F01N2530/00	7	Selection of materials for tubes, chambers or housings	CPCONLY	F01N2530/00		124
F01N2530/02	8	Corrosion resistive metals	CPCONLY	F01N2530/02		104
F01N2530/04	9	Steel alloys, e.g. stainless steel	CPCONLY	F01N2530/04		387
F01N2530/06	8	Aluminium or alloys thereof	CPCONLY	F01N2530/06		189
F01N2530/18	8	Plastics material, e.g. polyester resin	CPCONLY	F01N2530/18		199
F01N2530/20	9	reinforced with mineral or metallic fibres	CPCONLY	F01N2530/20		75
F01N2530/22	8	Flexible elastomeric material	CPCONLY	F01N2530/22		353
F01N2530/24	8	Sintered porous material, e.g. bronze, aluminium or the like	CPCONLY	F01N2530/24		50
F01N2530/26	8	Multi-layered walls	CPCONLY	F01N2530/26		249
F01N2550/00	7	Monitoring or diagnosing the deterioration of exhaust systems	CPCONLY	F01N2550/00		477
F01N2550/02	8	Catalytic activity of catalytic converters	CPCONLY	F01N2550/02		1989
F01N2550/03	8	of sorbing activity of adsorbents or absorbents	CPCONLY	F01N2550/03		572
F01N2550/04	8	Filtering activity of particulate filters	CPCONLY	F01N2550/04		823
F01N2550/05	8	Systems for adding substances into exhaust	CPCONLY	F01N2550/05		694
F01N2550/06	8	By-pass systems	CPCONLY	F01N2550/06		58
F01N2550/10	9	of catalytic converters	CPCONLY	F01N2550/10		38
F01N2550/12	9	of particulate filters	CPCONLY	F01N2550/12		30
F01N2550/14	8	Systems for adding secondary air into exhaust	CPCONLY	F01N2550/14		326
F01N2550/20	8	Monitoring artificially aged exhaust systems	CPCONLY	F01N2550/20		96
F01N2550/22	8	of electric heaters for exhaust systems or their power supply	CPCONLY	F01N2550/22		119
F01N2550/24	8	Determining the presence or absence of an exhaust treating device	CPCONLY	F01N2550/24		105
F01N2560/00	7	Exhaust systems with means for detecting or measuring exhaust gas components or characteristics	CPCONLY	F01N2560/00		158
F01N2560/02	8	the means being an exhaust gas sensor	CPCONLY	F01N2560/02		482
F01N2560/021	9	for measuring or detecting ammonia NH3	CPCONLY	F01N2560/021		550
F01N2560/022	9	for measuring or detecting CO or CO2	CPCONLY	F01N2560/022		126
F01N2560/023	9	for measuring or detecting HC	CPCONLY	F01N2560/023		150
F01N2560/024	9	for measuring or detecting hydrogen H2	CPCONLY	F01N2560/024		39
F01N2560/025	9	for measuring or detecting O2, e.g. lambda sensors	CPCONLY	F01N2560/025		1942
F01N2560/026	9	for measuring or detecting NOx	CPCONLY	F01N2560/026		2355
F01N2560/027	9	for measuring or detecting SOx	CPCONLY	F01N2560/027		89
F01N2560/028	9	for measuring or detecting humidity or water	CPCONLY	F01N2560/028		111
F01N2560/05	8	the means being a particulate sensor	CPCONLY	F01N2560/05		715
F01N2560/06	8	the means being a temperature sensor	CPCONLY	F01N2560/06		2796
F01N2560/07	8	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	CPCONLY	F01N2560/07		336
F01N2560/08	8	the means being a pressure sensor	CPCONLY	F01N2560/08		1298
F01N2560/12	8	Other sensor principles, e.g. using electro conductivity of substrate or radio frequency	CPCONLY	F01N2560/12		375
F01N2560/14	8	having more than one sensor of one kind	CPCONLY	F01N2560/14		1469
F01N2560/20	8	Sensor having heating means	CPCONLY	F01N2560/20		308
F01N2570/00	7	Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds	CPCONLY	F01N2570/00		68
F01N2570/02	8	Lead	CPCONLY	F01N2570/02		89
F01N2570/04	8	Sulfur or sulfur oxides	CPCONLY	F01N2570/04		943
F01N2570/06	8	Zinc	CPCONLY	F01N2570/06		4
F01N2570/08	8	Phosphorus	CPCONLY	F01N2570/08		27
F01N2570/10	8	Carbon or carbon oxides	CPCONLY	F01N2570/10		965
F01N2570/12	8	Hydrocarbons	CPCONLY	F01N2570/12		816
F01N2570/14	8	Nitrogen oxides	CPCONLY	F01N2570/14		3131
F01N2570/145	9	Dinitrogen oxide	CPCONLY	F01N2570/145		99
F01N2570/16	8	Oxygen	CPCONLY	F01N2570/16		317
F01N2570/18	8	Ammonia	CPCONLY	F01N2570/18		532
F01N2570/20	8	Formaldehyde	CPCONLY	F01N2570/20		20
F01N2570/22	8	Water or humidity	CPCONLY	F01N2570/22		236
F01N2570/24	8	Hydrogen sulfide (H2S)	CPCONLY	F01N2570/24		28
F01N2590/00	7	Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines	CPCONLY	F01N2590/00		156
F01N2590/02	8	for marine vessels or naval applications	CPCONLY	F01N2590/02		1803
F01N2590/021	9	for outboard engines	CPCONLY	F01N2590/021		261
F01N2590/022	9	for jetskis	CPCONLY	F01N2590/022		110
F01N2590/04	8	for motorcycles	CPCONLY	F01N2590/04		799
F01N2590/06	8	for hand-held tools or portables devices	CPCONLY	F01N2590/06		293
F01N2590/08	8	for heavy duty applications, e.g. trucks, buses, tractors, locomotives	CPCONLY	F01N2590/08		1140
F01N2590/10	8	for stationary applications	CPCONLY	F01N2590/10		210
F01N2590/11	8	for hybrid vehicles	CPCONLY	F01N2590/11		495
F01N2610/00	7	Adding substances to exhaust gases	CPCONLY	F01N2610/00		291
F01N2610/01	8	the substance being catalytic material in liquid form	CPCONLY	F01N2610/01		254
F01N2610/02	8	the substance being ammonia or urea	CPCONLY	F01N2610/02		10007
F01N2610/03	8	the substance being hydrocarbons, e.g. engine fuel	CPCONLY	F01N2610/03		2238
F01N2610/04	8	the substance being hydrogen	CPCONLY	F01N2610/04		412
F01N2610/05	8	the substance being carbon monoxide	CPCONLY	F01N2610/05		58
F01N2610/06	8	the substance being in the gaseous form	CPCONLY	F01N2610/06		445
F01N2610/08	8	with prior mixing of the substances with a gas, e.g. air	CPCONLY	F01N2610/08		584
F01N2610/085	9	Controlling the air supply	CPCONLY	F01N2610/085		90
F01N2610/10	8	the substance being heated, e.g. by heating tank or supply line of the added substance	CPCONLY	F01N2610/10		1614
F01N2610/102	9	after addition to exhaust gases, e.g. by a passively or actively heated surface in the exhaust conduit	CPCONLY	F01N2610/102		240
F01N2610/105	9	Control thereof	CPCONLY	F01N2610/105		251
F01N2610/107	9	using glow plug heating elements	CPCONLY	F01N2610/107		134
F01N2610/11	8	the substance or part of the dosing system being cooled	CPCONLY	F01N2610/11		451
F01N2610/12	8	the substance being in solid form, e.g. pellets or powder	CPCONLY	F01N2610/12		160
F01N2610/14	8	Arrangements for the supply of substances, e.g. conduits	CPCONLY	F01N2610/14		1628
F01N2610/1406	9	Storage means for substances, e.g. tanks or reservoirs	CPCONLY	F01N2610/1406		2163
F01N2610/1413	10	Inlet and filling arrangements therefore	CPCONLY	F01N2610/1413		298
F01N2610/142	10	Controlling the filling of the tank	CPCONLY	F01N2610/142		136
F01N2610/1426	9	Filtration means	CPCONLY	F01N2610/1426		438
F01N2610/1433	9	Pumps	CPCONLY	F01N2610/1433		946
F01N2610/144	10	Control thereof	CPCONLY	F01N2610/144		564
F01N2610/1446	9	Means for damping of pressure fluctuations in the delivery system, e.g. by puffer volumes or throttling	CPCONLY	F01N2610/1446		117
F01N2610/1453	9	Sprayers or atomisers; Arrangement thereof in the exhaust apparatus	CPCONLY	F01N2610/1453		3078
F01N2610/146	10	Control thereof, e.g. control of injectors or injection valves	CPCONLY	F01N2610/146		1431
F01N2610/1466	9	Means for venting air out of conduits or tanks	CPCONLY	F01N2610/1466		243
F01N2610/1473	9	Overflow or return means for the substances, e.g. conduits or valves for the return path	CPCONLY	F01N2610/1473		453
F01N2610/148	9	Arrangement of sensors	CPCONLY	F01N2610/148		477
F01N2610/1486	9	Means to prevent the substance from freezing	CPCONLY	F01N2610/1486		867
F01N2610/1493	9	Purging the reducing agent out of the conduits or nozzle	CPCONLY	F01N2610/1493		438
F01N2900/00	7	Details of electrical control or of the monitoring of the exhaust gas treating apparatus	CPCONLY	F01N2900/00		28
F01N2900/04	8	Methods of control or diagnosing	CPCONLY	F01N2900/04		287
F01N2900/0402	9	using adaptive learning	CPCONLY	F01N2900/0402		176
F01N2900/0404	9	using a data filter	CPCONLY	F01N2900/0404		99
F01N2900/0406	9	using a model with a division of the catalyst or filter in several cells	CPCONLY	F01N2900/0406		102
F01N2900/0408	9	using a feed-back loop	CPCONLY	F01N2900/0408		381
F01N2900/0411	9	using a feed-forward control	CPCONLY	F01N2900/0411		136
F01N2900/0412	9	using pre-calibrated maps, tables or charts	CPCONLY	F01N2900/0412		440
F01N2900/0414	9	using a state observer	CPCONLY	F01N2900/0414		54
F01N2900/0416	9	using the state of a sensor, e.g. of an exhaust gas sensor	CPCONLY	F01N2900/0416		1102
F01N2900/0418	9	using integration or an accumulated value within an elapsed period	CPCONLY	F01N2900/0418		314
F01N2900/0421	9	using an increment counter when a predetermined event occurs	CPCONLY	F01N2900/0421		216
F01N2900/0422	9	measuring the elapsed time	CPCONLY	F01N2900/0422		784
F01N2900/06	8	Parameters used for exhaust control or diagnosing	CPCONLY	F01N2900/06		66
F01N2900/0601	9	being estimated	CPCONLY	F01N2900/0601		386
F01N2900/0602	9	Electrical exhaust heater signals	CPCONLY	F01N2900/0602		204
F01N2900/08	9	said parameters being related to the engine	CPCONLY	F01N2900/08		1765
F01N2900/10	9	said parameters being related to the vehicle or its components	CPCONLY	F01N2900/10		474
F01N2900/102	10	Travelling distance	CPCONLY	F01N2900/102		249
F01N2900/104	10	Battery status	CPCONLY	F01N2900/104		161
F01N2900/12	9	said parameters being related to the vehicle exterior	CPCONLY	F01N2900/12		399
F01N2900/14	9	said parameters being related to the exhaust gas	CPCONLY	F01N2900/14		245
F01N2900/1402	10	Exhaust gas composition	CPCONLY	F01N2900/1402		1416
F01N2900/1404	10	Exhaust gas temperature	CPCONLY	F01N2900/1404		1523
F01N2900/1406	10	Exhaust gas pressure	CPCONLY	F01N2900/1406		479
F01N2900/1411	10	Exhaust gas flow rate, e.g. mass flow rate or volumetric flow rate	CPCONLY	F01N2900/1411		550
F01N2900/16	9	said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst	CPCONLY	F01N2900/16		182
F01N2900/1602	10	Temperature of exhaust gas apparatus	CPCONLY	F01N2900/1602		1950
F01N2900/1606	10	Particle filter loading or soot amount	CPCONLY	F01N2900/1606		1031
F01N2900/1611	10	Particle filter ash amount	CPCONLY	F01N2900/1611		136
F01N2900/1612	10	SOx amount trapped in catalyst	CPCONLY	F01N2900/1612		155
F01N2900/1614	10	NOx amount trapped in catalyst	CPCONLY	F01N2900/1614		322
F01N2900/1616	10	NH3-slip from catalyst	CPCONLY	F01N2900/1616		390
F01N2900/1618	10	HC-slip from catalyst	CPCONLY	F01N2900/1618		31
F01N2900/1621	10	Catalyst conversion efficiency	CPCONLY	F01N2900/1621		545
F01N2900/1622	10	Catalyst reducing agent absorption capacity or consumption amount	CPCONLY	F01N2900/1622		545
F01N2900/1624	10	Catalyst oxygen storage capacity	CPCONLY	F01N2900/1624		367
F01N2900/1626	10	Catalyst activation temperature	CPCONLY	F01N2900/1626		257
F01N2900/1628	10	Moisture amount in exhaust apparatus	CPCONLY	F01N2900/1628		69
F01N2900/1631	10	Heat amount provided to exhaust apparatus	CPCONLY	F01N2900/1631		167
F01N2900/18	9	said parameters being related to the system for adding a substance into the exhaust	CPCONLY	F01N2900/18		56
F01N2900/1804	10	Properties of secondary air added directly to the exhaust	CPCONLY	F01N2900/1804		76
F01N2900/1806	10	Properties of reducing agent or dosing system	CPCONLY	F01N2900/1806		283
F01N2900/1808	11	Pressure	CPCONLY	F01N2900/1808		496
F01N2900/1811	11	Temperature	CPCONLY	F01N2900/1811		470
F01N2900/1812	11	Flow rate	CPCONLY	F01N2900/1812		353
F01N2900/1814	11	Tank level	CPCONLY	F01N2900/1814		463
F01N2900/1818	11	Concentration of the reducing agent	CPCONLY	F01N2900/1818		299
F01N2900/1821	11	Injector parameters	CPCONLY	F01N2900/1821		223
F01N2900/1822	11	Pump parameters	CPCONLY	F01N2900/1822		151
F01N2900/1824	11	Properties of the air to be mixed with added substances, e.g. air pressure or air temperature	CPCONLY	F01N2900/1824		38
