ClassID:

138116

F01N2470/04 - CPC Classification

Classification description:

Structure or shape of gas passages, pipes or tubes; Tubes being perforated characterised by shape, disposition or dimensions of apertures

Recent Application in this class:
#1
20260153043
2026-06-04

MIXING PATH FOR AN EXHAUST GAS SYSTEM OF AN INTERNAL COMBUSTION ENGINE

#2
20260092544
2026-04-02

Tunable Exhaust System

#3
20240376840
2024-11-14

EXHAUST GAS SYSTEM UNIT

#4
20240018890
2024-01-18

DOSING AND MIXING ASSEMBLIES FOR EXHAUST AFTERTREATMENT SYSTEM

#5
20230374923
2023-11-23

MUFFLER SYSTEM WITH PNEUMATICALLY ACTUATED BYPASS VALVE

#6
20230279797
2023-09-07

SOUND ABSORBING ELEMENT WITH LOW PROFILE MICRO-LOUVER SLITS AND MUFFLER ASSEMBLY USING THE SAME

#7
20230151755
2023-05-18

DECOMPOSITION CHAMBER

#8
20230138976
2023-05-04

Exhaust gas purification device with improved air inlet nozzle

#9
20230137759
2023-05-04

Component of an exhaust system and method for manufacturing such a component

#10
20220389854
2022-12-08

Outlet passage for aftertreatment sensor

#11
20220341357
2022-10-27

Dosing and mixing assemblies for exhaust aftertreatment system

#12
20220316371
2022-10-06

Dual function exhaust system attachment

#13
20220220882
2022-07-14

Exhaust device

#14
20220049640
2022-02-17

Vehicle exhaust system

#15
20210355850
2021-11-18

Exhaust system noise reduction device of vehicle

#16
20210348538
2021-11-11

Static mixer for exhaust gas ducts of internal combustion engines, method of manufacturing thereof and exhaust unit incorporating the mixer

#17
20210222594
2021-07-22

Tunable Exhaust System

#18
20210148261
2021-05-20

Exhaust component with louver bridge for suppressing vehicle exhaust pipe resonances and vehicle exhaust system with exhaust component

#19
20210131329
2021-05-06

Systems and methods for controlling flow distribution in an aftertreatment system

#20
20200324254
2020-10-15

Dosing and mixing arrangement for use in exhaust aftertreatment

#21
20200248598
2020-08-06

Tail pipe

#22
20200032696
2020-01-30

Exhaust manifold stiffening ribs

#23
20190383194
2019-12-19

Pipe mixer for an aftertreatment system

#24
20190368396
2019-12-05

Muffler for an exhaust system of an internal combustion engine

#25
20190360379
2019-11-28

MODULAR MUFFLER ASSEMBLY AND METHOD

#26
20190360375
2019-11-28

Vehicle exhaust system

#27
20190301321
2019-10-03

EXHAUST GAS SYSTEM FOR AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE

#28
20190209977
2019-07-11

Dosing and mixing arrangement for use in exhaust aftertreatment

#29
20190203619
2019-07-04

Exhaust system having tunable exhaust sound

#30
20190136740
2019-05-09

Exhaust silencer device

#31
20190128169
2019-05-02

Exhaust heat recovery apparatus

#32
20180163601
2018-06-14

Mixing apparatus for an exhaust gas aftertreatment system, exhaust gas aftertreatment system and internal combustion engine

#33
20180156093
2018-06-07

Inlet diffuser for exhaust aftertreatment system

#34
20180156092
2018-06-07

Mixer in an exhaust gas system

#35
20180149053
2018-05-31

Exhaust gas muffler and method for the manufacture thereof

#36
20180030874
2018-02-01

Mix box

#37
20180001279
2018-01-04

Dosing and mixing arrangement for use in exhaust aftertreatment

#38
20170370270
2017-12-28

Water ingress preventing structure for tailpipe

#39
20170122154
2017-05-04

Muffler for an exhaust system of an internal combustion engine

#40
20170044965
2017-02-16

Component of an exhaust system

#41
20160376969
2016-12-29

Cantilevered flow distributing apparatus

#42
20160326931
2016-11-10

Mixer and emissions cleaning module

#43
20160312680
2016-10-27

Mixing pipe arrangement with housing

#44
20160265409
2016-09-15

Device for the aftertreatment of exhaust gas from a motor vehicle

#45
20160245146
2016-08-25

Exhaust muffler

#46
20150337700
2015-11-26

Combustion gas cooling apparatus, denitration apparatus having the combustion gas cooling apparatus, and combustion gas cooling method

#47
20150152762
2015-06-04

Exhaust-gas heat exchanger

#48
20150101320
2015-04-16

Gas release apparatus for construction machine

#49
20150101311
2015-04-16

Exhaust mixer, emissions cleaning module and method

#50
20150086433
2015-03-26

Emissions cleaning module and associated electronics support unit

#51
20150075122
2015-03-19

Emissions cleaning module

#52
20150071827
2015-03-12

Emissions cleaning module for an engine

#53
20150064072
2015-03-05

Emissions cleaning module

#54
20150047922
2015-02-19

Muffler having coupling of a tailpipe by means of a coupling chamber

#55
20140334988
2014-11-13

Flow reversing exhaust gas mixer

#56
20140230411
2014-08-21

Dosing and mixing arrangement for use in exhaust aftertreatment

#57
20140026540
2014-01-30

Compact exhaust gas treatment unit with mixing region, method for mixing an exhaust gas and vehicle

#58
20130291525
2013-11-07

Heater tube for an exhaust system

#59
20130291498
2013-11-07

EXHAUST SYSTEM HAVING MULTI-BANK DISTRIBUTION DEVICES

#60
20130067891
2013-03-21

Exhaust aftertreatment system

#61
20130000286
2013-01-03

Engine exhaust gas heat exchanger and energy supplying device using the same

#62
20120124968
2012-05-24

Mixing pipe for SCR mufflers

#63
20120111663
2012-05-10

Resonator for a dual-flow exhaust system

#64
20110147118
2011-06-23

Silencer/muffler

#65
20110094206
2011-04-28

Reductant injection and decomposition system

#66
20110024228
2011-02-03

Silencer provided on exhaust pipe of vehicle engine

#67
20100300799
2010-12-02

Exhaust silencer device for internal combustion engine

#68
20100126799
2010-05-27

Muffler and engine exhaust apparatus

#69
20100083647
2010-04-08

Exhaust diffuser for a vocational truck

#70
20100051379
2010-03-04

Enhanced Exhaust System

#71
20100043412
2010-02-25

Exhaust diffuser for a truck

#72
20090277164
2009-11-12

Burner assembly for particulate trap regeneration

#73
20090229913
2009-09-17

Dual Mode Exhaust Muffler

#74
20090084626
2009-04-02

Muffler and working machine

#75
20090053122
2009-02-26

Process for denitration of exhaust gas

#76
20090045006
2009-02-19

Noise Eliminator for Fuel Cell

#77
20090038879
2009-02-12

Muffler unit for general-purpose engine

#78
20090014235
2009-01-15

Flow diffuser for exhaust pipe

#79
20090013675
2009-01-15

Flow diffuser for exhaust pipe

#80
20070227810
2007-10-04

Vehicle exhaust system

#81
20070209354
2007-09-13

Exhaust system component

#82
20070158136
2007-07-12

Muffler and vehicle equipped with muffler

#83
20070131481
2007-06-14

Method and apparatus for attenuating sound in a vehicle exhaust system

#84
20070113540
2007-05-24

Catalyst body and an exhaust system for a small-size engine and a method for producing the catalyst body

#85
20070095606
2007-05-03

Internal combustion engine exhaust line muffler

#86
20060266024
2006-11-30

Layout of catalyst of vehicle

#87
20060218902
2006-10-05

Burner assembly for particulate trap regeneration

#88
20060168938
2006-08-03

Internal combustion engine exhaust gas conveying device with internal lining, as well as process for production thereof

#89
20060113145
2006-06-01

Fuel cell vehicle

#90
20050224283
2005-10-13

Internal combustion engine silencer

#91
20050205351
2005-09-22

Noise reduction tubes

#92
18065215
2023-12-12

Exhaust gas burner assembly