IPC-Stelle: F01N [Version 2017.01]

SymbolTypTitel
FSKMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01USKENGINES OR PUMPS
F01KLMACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01NUKLGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K 13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M 35/00; protecting against, or damping, noise in general G10K 11/16)
F01N 1/00HGRSilencing apparatus characterised by method of silencing [1, 2006.01]
F01N 1/02UGR1
.by using resonance [1, 2006.01]
F01N 1/04UGR2
. .having sound-absorbing materials in resonance chambers [1, 2006.01]
F01N 1/06UGR1
.by using interference effect [1, 2006.01]
F01N 1/08UGR1
.by reducing exhaust energy by throttling or whirling [1, 2006.01]
F01N 1/10UGR2
. .in combination with sound-absorbing materials [1, 2006.01]
F01N 1/12UGR2
. .using spirally- or helically-shaped channels (F01N 1/10 takes precedence; cyclones B04C) [1, 2006.01]
F01N 1/14UGR1
.by adding air to exhaust gases [1, 2006.01]
F01N 1/16UGR1
.by using movable parts [1, 2006.01]
F01N 1/18UGR2
. .having rotary movement [1, 2006.01]
F01N 1/20UGR2
. .having oscillating or vibrating movement (the parts being resilient walls F01N 1/22) [1, 2006.01]
F01N 1/22UGR2
. .the parts being resilient walls [1, 2006.01]
F01N 1/24UGR1
.by using sound-absorbing materials (F01N 1/04, F01N 1/06, F01N 1/10, F01N 1/14, F01N 1/16 take precedence) [1, 2006.01]
F01N 3/00HGRExhaust 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) [1, 4, 2006.01]
F01N 3/01UGR1
.by means of electric or electrostatic separators [7, 2006.01]
F01N 3/02UGR1
.for cooling, or for removing solid constituents of, exhaust (by means of electric or electrostatic separators F01N 3/01) [1, 7, 2006.01]
F01N 3/021UGR2
. .by means of filters [7, 2006.01]
F01N 3/022UGR3
. . .characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous [7, 2006.01]
F01N 3/023UGR3
. . .using means for regenerating the filters, e.g. by burning trapped particles [7, 2006.01]
F01N 3/025UGR4
. . . .using fuel burner or by adding fuel to exhaust [7, 2006.01]
F01N 3/027UGR4
. . . .using electric or magnetic heating [7, 2006.01]
F01N 3/028UGR5
. . . . .using microwaves [7, 2006.01]
F01N 3/029UGR4
. . . .by adding non-fuel substances to exhaust [7, 2006.01]
F01N 3/031UGR3
. . .having means for by-passing filters, e.g. when clogged or during cold engine start [7, 2006.01]
F01N 3/032UGR4
. . . .during filter regeneration only [7, 2006.01]
F01N 3/033UGR3
. . .in combination with other devices [7, 2006.01]
F01N 3/035UGR4
. . . .with catalytic reactors [7, 2006.01]
F01N 3/037UGR2
. .by means of inertial or centrifugal separators, e.g. associated with agglomerators [7, 2006.01]
F01N 3/038UGR2
. .by means of perforated plates defining expansion chambers associated with condensation and collection chambers [7, 2006.01]
F01N 3/04UGR2
. .by means of liquids [1, 2006.01]
F01N 3/05UGR2
. .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) [7, 2006.01]
F01N 3/06UGR1
.for extinguishing sparks [1, 2006.01]
F01N 3/08UGR1
.for rendering innocuous (using electric or electrostatic separators F01N 3/01; chemical aspects B01D 53/92) [1, 7, 2006.01]
F01N 3/10UGR2
. .by thermal or catalytic conversion of noxious components of exhaust [1, 3, 2006.01]
F01N 3/18UGR3
. . .characterised by methods of operation; Control [3, 2006.01]
F01N 3/20UGR4
. . . .specially adapted for catalytic conversion (F01N 3/22 takes precedence) [3, 2006.01]
F01N 3/22UGR4
. . . .Control of additional air supply only, e.g. using by-passes or variable air pump drives [3, 2006.01]
F01N 3/24UGR3
. . .characterised by constructional aspects of converting apparatus (filtering in combination with catalytic reactors F01N 3/035) [3, 7, 2006.01]
F01N 3/26UGR4
. . . .Construction of thermal reactors [3, 2006.01]
F01N 3/28UGR4
. . . .Construction of catalytic reactors [3, 2006.01]
F01N 3/30UGR4
. . . .Arrangements for supply of additional air (control, e.g. using by-passes or variable air pump drives, F01N 3/22) [3, 2006.01]
F01N 3/32UGR5
. . . . .using air pumps (using jet air pumps F01N 3/34; pumps in general F04) [3, 2006.01]
F01N 3/34UGR5
. . . . .using air conduits or jet air pumps, e.g. near the engine exhaust port [3, 2006.01]
F01N 3/36UGR4
. . . .Arrangements for supply of additional fuel [3, 2006.01]
F01N 3/38UGR4
. . . .Arrangements for igniting [3, 2006.01]
F01N 5/00HGRExhaust 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; predominant aspects of such devices, see the relevant classes for the devices) [1, 2006.01]
F01N 5/02UGR1
.the devices using heat [1, 2006.01]
F01N 5/04UGR1
.the devices using kinetic energy [1, 2006.01]
F01N 9/00HGRElectrical control of exhaust gas treating apparatus (monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N 11/00; conjoint electrical control of two or more combustion engine functions F02D 43/00) [4, 2006.01]
F01N 11/00HGRMonitoring or diagnostic devices for exhaust-gas treatment apparatus [7, 2006.01]
F01N 13/00HGRExhaust or silencing apparatus characterised by constructional features [2010.01]
F01N 13/02UGR1
.having two or more separate silencers in series [2010.01]
F01N 13/04UGR1
.having two or more silencers in parallel, e.g. having interconnections for multi-cylinder engines [2010.01]
F01N 13/06UGR1
.specially adapted for star-arrangement of cylinders, e.g. exhaust manifolds [2010.01]
F01N 13/08UGR1
.Other arrangements or adaptations of exhaust conduits [2010.01]
F01N 13/10UGR2
. .of exhaust manifolds [2010.01]
F01N 13/12UGR1
.specially adapted for submerged exhausting [2010.01]
F01N 13/14UGR1
.having thermal insulation [2010.01]
F01N 13/16UGR1
.Selection of particular materials [2010.01]
F01N 13/18UGR1
.Construction facilitating manufacture, assembly or disassembly [2010.01]
F01N 13/20UGR1
.having flared outlets, e.g. of fish-tail shape [2010.01]
F01N 99/00HGRSubject matter not provided for in other groups of this subclass [2010.01]