Symbol Version, Language
Search in DEPATISnetSearch in DPMAregister

Search request: No search request has been comitted.

IPC entry: F01N 3/023 3-dot subgroup [Version 2024.01 (current), Language EN - English]

Symbol Select IPC entry Title
A
Show hierarchy
HUMAN NECESSITIES
B
Show hierarchy
PERFORMING OPERATIONS; TRANSPORTING
C
Show hierarchy
CHEMISTRY; METALLURGY
D
Show hierarchy
TEXTILES; PAPER
E
Show hierarchy
FIXED CONSTRUCTIONS
F
Show hierarchy
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01
Show hierarchy
ENGINES OR PUMPS
F01
Show hierarchy
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01B
Show hierarchy
MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES (of rotary-piston or oscillating-piston type F01C; of non-positive-displacement type F01D; combustion engines F02; internal-combustion aspects of reciprocating-piston engines F02B 57/00, F02B 59/00; machines for liquids F03, F04; crankshafts, crossheads, connecting-rods F16C; flywheels F16F; gearings for interconverting rotary motion and reciprocating motion in general F16H; pistons, piston-rods, cylinders, for engines in general F16J)
F01C
Show hierarchy
ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (combustion engines F02; internal-combustion aspects F02B 53/00, F02B 55/00; machines for liquids F03, F04)
F01D
Show hierarchy
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (combustion engines F02; machines or engines for liquids F03, F04; non-positive-displacement pumps F04D)
F01K
Show hierarchy
STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES (gas-turbine or jet-propulsion plants F02; steam generation F22; nuclear power plants, engine arrangements therein G21D)
F01L
Show hierarchy
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
F01M
Show hierarchy
LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING [2]
F01N
Show hierarchy
GAS-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 1/00
Show hierarchy
Silencing apparatus characterised by method of silencing [1, 2006.01]
F01N 3/00
Show hierarchy
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) [1, 4, 2006.01]
F01N 3/01
Show hierarchy
. by means of electric or electrostatic separators [7, 2006.01]
F01N 3/02
Show hierarchy
. for cooling, or for removing solid constituents of, exhaust (by means of electric or electrostatic separators F01N 3/01) [1, 7, 2006.01]
F01N 3/021
Show hierarchy
. . by means of filters [7, 2006.01]
F01N 3/022
Show hierarchy
. . . characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous [7, 2006.01]
F01N 3/023
Show hierarchy
. . . using means for regenerating the filters, e.g. by burning trapped particles [7, 2006.01]
F01N 3/025
Show hierarchy
. . . . using fuel burner or by adding fuel to exhaust [7, 2006.01]
F01N 3/027
Show hierarchy
. . . . using electric or magnetic heating [7, 2006.01]
F01N 3/028
Show hierarchy
. . . . . using microwaves [7, 2006.01]
F01N 3/029
Show hierarchy
. . . . by adding non-fuel substances to exhaust [7, 2006.01]
F01N 3/031
Show hierarchy
. . . having means for by-passing filters, e.g. when clogged or during cold engine start [7, 2006.01]
F01N 3/032
Show hierarchy
. . . . during filter regeneration only [7, 2006.01]
F01N 3/033
Show hierarchy
. . . in combination with other devices [7, 2006.01]
F01N 3/035
Show hierarchy
. . . . with catalytic reactors [7, 2006.01]
F01N 3/037
Show hierarchy
. . by means of inertial or centrifugal separators, e.g. associated with agglomerators [7, 2006.01]
F01N 3/038
Show hierarchy
. . by means of perforated plates defining expansion chambers associated with condensation and collection chambers [7, 2006.01]
F01N 3/04
Show hierarchy
. . by means of liquids [1, 2006.01]
F01N 3/05
Show hierarchy
. . 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 3/06
Show hierarchy
. for extinguishing sparks [1, 2006.01]
F01N 3/08
Show hierarchy
. for rendering innocuous (using electric or electrostatic separators F01N 3/01; chemical aspects B01D 53/92) [1, 7, 2006.01]
F01N 3/10
Show hierarchy
. . by thermal or catalytic conversion of noxious components of exhaust [1, 3, 2006.01]
F01N 3/18
Show hierarchy
. . . characterised by methods of operation; Control [3, 2006.01]
F01N 3/20
Show hierarchy
. . . . specially adapted for catalytic conversion (F01N 3/22 takes precedence) [3, 2006.01]
F01N 3/22
Show hierarchy
. . . . Control of additional air supply only, e.g. using by-passes or variable air pump drives [3, 2006.01]
F01N 3/24
Show hierarchy
. . . characterised by constructional aspects of converting apparatus (filtering in combination with catalytic reactors F01N 3/035) [3, 7, 2006.01]
F01N 3/26
Show hierarchy
. . . . Construction of thermal reactors [3, 2006.01]
F01N 3/28
Show hierarchy
. . . . Construction of catalytic reactors [3, 2006.01]
F01N 3/30
Show hierarchy
. . . . Arrangements for supply of additional air (control, e.g. using by-passes or variable air pump drives, F01N 3/22) [3, 2006.01]
F01N 3/32
Show hierarchy
. . . . . using air pumps (using jet air pumps F01N 3/34; pumps in general F04) [3, 2006.01]
F01N 3/34
Show hierarchy
. . . . . using air conduits or jet air pumps, e.g. near the engine exhaust port [3, 2006.01]
F01N 3/36
Show hierarchy
. . . . Arrangements for supply of additional fuel [3, 2006.01]
F01N 3/38
Show hierarchy
. . . . Arrangements for igniting [3, 2006.01]
F01N 5/00
Show hierarchy
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) [1, 2006.01]
F01N 9/00
Show hierarchy
Electrical 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 11/00
Show hierarchy
Monitoring or diagnostic devices for exhaust-gas treatment apparatus [7, 2006.01]
F01N 13/00
Show hierarchy
Exhaust or silencing apparatus characterised by constructional features [2010.01]
F01N 99/00
Show hierarchy
Subject matter not provided for in other groups of this subclass [2010.01]
F01P
Show hierarchy
COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES (arrangements in connection with cooling of propulsion units in vehicles B60K 11/00; heat-transfer, heat-exchange or heat-storage materials C09K 5/00; heat-exchange in general, radiators F28)
F02
Show hierarchy
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F03
Show hierarchy
MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
F04
Show hierarchy
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F15
Show hierarchy
ENGINEERING IN GENERAL
F15
Show hierarchy
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
F16
Show hierarchy
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F17
Show hierarchy
STORING OR DISTRIBUTING GASES OR LIQUIDS
F21
Show hierarchy
LIGHTING; HEATING
F21
Show hierarchy
LIGHTING
F22
Show hierarchy
STEAM GENERATION
F23
Show hierarchy
COMBUSTION APPARATUS; COMBUSTION PROCESSES
F24
Show hierarchy
HEATING; RANGES; VENTILATING
F25
Show hierarchy
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
F26
Show hierarchy
DRYING
F27
Show hierarchy
FURNACES; KILNS, OVENS OR RETORTS [4]
F28
Show hierarchy
HEAT EXCHANGE IN GENERAL
F41
Show hierarchy
WEAPONS; BLASTING
F41
Show hierarchy
WEAPONS
F42
Show hierarchy
AMMUNITION; BLASTING
F99
Show hierarchy
SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]
G
Show hierarchy
PHYSICS
H
Show hierarchy
ELECTRICITY

IPC entry to be compared: No IPC entry bookmarked for comparison view [Version , Language ]