IPC-Stelle: F01N 3/18 [Version 7 (gültig ab 01.2000)]

SymbolTypTitel
FSKMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01USKENGINES OR PUMPS
F01KLMACHINES OR ENGINES IN GENERAL (combustion engines F02; machines for liquids F03 , F04); 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
F01N 1/02UGR1
.by using resonance
F01N 1/04UGR2
. .having sound-absorbing materials in resonance chambers
F01N 1/06UGR1
.by using interference effect
F01N 1/08UGR1
.by reducing exhaust energy by throttling or whirling
F01N 1/10UGR2
. .in combination with sound-absorbing materials
F01N 1/12UGR2
. .using spirally- or helically-shaped channels (F01N 1/10 takes precedence; cyclones B04C)
F01N 1/14UGR1
.by adding air to exhaust gases
F01N 1/16UGR1
.by using movable parts
F01N 1/18UGR2
. .having rotary movement
F01N 1/20UGR2
. .having oscillating or vibrating movement (the parts being resilient walls F01N 1/22)
F01N 1/22UGR2
. .the parts being resilient walls
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)
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) [4]
F01N 3/01UGR1
.by means of electric or electrostatic separators [7]
F01N 3/02UGR1
.for cooling, or for removing solid constituents of, exhaust (by means of electric or electrostatic separators F01N 3/01) [1, 7]
F01N 3/021UGR2
. .by means of filters [7]
F01N 3/022UGR3
. . .characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous [7]
F01N 3/023UGR3
. . .using means for regenerating the filters, e.g. by burning trapped particles [7]
F01N 3/025UGR4
. . . .using fuel burner or by adding fuel to exhaust [7]
F01N 3/027UGR4
. . . .using electric or magnetic heating [7]
F01N 3/028UGR5
. . . . .using microwaves [7]
F01N 3/029UGR4
. . . .by adding non-fuel substances to exhaust [7]
F01N 3/031UGR3
. . .having means for by-passing filters, e.g. when clogged or during cold engine start [7]
F01N 3/032UGR4
. . . .during filter regeneration only [7]
F01N 3/033UGR3
. . .in combination with other devices [7]
F01N 3/035UGR4
. . . .with catalytic reactors [7]
F01N 3/037UGR2
. .by means of inertial or centrifugal separators, e.g. associated with agglomerators [7]
F01N 3/038UGR2
. .by means of perforated plates defining expansion chambers associated with condensation and collection chambers [7]
F01N 3/04UGR2
. .by means of liquids
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]
F01N 3/06UGR1
.for extinguishing sparks
F01N 3/08UGR1
.for rendering innocuous (using electric or electrostatic separators F01N 3/01; chemical aspects B01D 53/92) [1, 7]
F01N 3/10UGR2
. .by thermal or catalytic conversion of noxious components of exhaust [3]
F01N 3/18UGR3
. . .characterised by methods of operation; Regulation [3]
F01N 3/20UGR4
. . . .specially adapted for catalytic conversion (F01N 3/22 takes precedence) [3]
F01N 3/22UGR4
. . . .Regulation of additional air supply only, e.g. using by-passes or variable air pump drives [3]
F01N 3/24UGR3
. . .characterised by constructional aspects of converting apparatus (filtering in combination with catalytic reactors F01N 3/035) [3, 7]
F01N 3/26UGR4
. . . .Construction of thermal reactors [3]
F01N 3/28UGR4
. . . .Construction of catalytic reactors [3]
F01N 3/30UGR4
. . . .Arrangements for supply of additional air (regulation, e.g. using by-passes or variable air pump drives, F01N 3/22) [3]
F01N 3/32UGR5
. . . . .using air pumps (using jet air pumps F01N 3/34; pumps in general F04) [3]
F01N 3/34UGR5
. . . . .using air conduits or jet air pumps, e.g. near the engine exhaust port [3]
F01N 3/36UGR4
. . . .Arrangements for supply of additional fuel [3]
F01N 3/38UGR4
. . . .Arrangements for igniting [3]
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)
F01N 5/02UGR1
.the devices using heat
F01N 5/04UGR1
.the devices using kinetic energy
F01N 7/00HGRExhaust 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 7/02UGR1
.Apparatus having two or more separate silencers in series
F01N 7/04UGR1
.Apparatus having two or more silencers in parallel, e.g. having interconnections for multi-cylinder engines
F01N 7/06UGR1
.specially adapted for star-arrangement of cylinders, e.g. exhaust manifolds
F01N 7/08UGR1
.Other arrangements or adaptations of exhaust conduits (pipes in general F16L)
F01N 7/10UGR2
. .of exhaust manifolds
F01N 7/12UGR1
.specially adapted for submerged exhausting
F01N 7/14UGR1
.having thermal insulation
F01N 7/16UGR1
.Selection of particular materials
F01N 7/18UGR1
.Construction facilitating manufacture, assembly, or disassembly
F01N 7/20UGR1
.Flared outlets, e.g. of fish-tail shape
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]
F01N 11/00HGRMonitoring or diagnostic devices for exhaust-gas treatment apparatus [7]