ClassID:

138129

F01N2470/30 - CPC Classification

Classification description:

Structure or shape of gas passages, pipes or tubes Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow

Recent Application in this class:
#1
20240328340
2024-10-03

SWIRL STRUCTURE-BASED EXHAUST AFTERTREATMENT DEVICE FOR UNDERGROUND MINING DIESEL VEHICLE

#2
20240060437
2024-02-22

Exhaust gas cooling device

#3
20230108543
2023-04-06

Systems and methods for mixing exhaust gases and reductant in an aftertreatment system

#4
20220307403
2022-09-29

Exhaust gas/reactant mixing assembly

#5
20210372313
2021-12-02

Systems and methods for mixing exhaust gases and reductant in an aftertreatment system

#6
20210340896
2021-11-04

Apparatus for adding a liquid reducing agent to the exhaust gas from an internal combustion engine and motor vehicle

#7
20210332736
2021-10-28

Exhaust fumes reduction device for internal combustion engine

#8
20210239017
2021-08-05

Exhaust system component

#9
20210207739
2021-07-08

Aspiration system for a work vehicle including an adjustably-sized venturi section

#10
20210207517
2021-07-08

Aspiration systems for work vehicles including exhaust tubes having airflow area modifiers

#11
20210199036
2021-07-01

APPARATUS FOR REMOVING MOISTURE FROM EXHAUST GAS

#12
20210131329
2021-05-06

Systems and methods for controlling flow distribution in an aftertreatment system

#13
20210115823
2021-04-22

Two-stroke engine exhaust resonator with exhaust gas catalytic converter

#14
20200123955
2020-04-23

Systems and methods for mixing exhaust gases and reductant in an aftertreatment system

#15
20200080463
2020-03-12

Exhaust system and method of using

#16
20190257276
2019-08-22

Aspiration system for a work vehicle

#17
20190162104
2019-05-30

Valvular-conduit exhaust manifold

#18
20190118146
2019-04-25

Exhaust treatment device

#19
20180347439
2018-12-06

Urea mixer

#20
20180291791
2018-10-11

Secondary air introduction device

#21
20180202345
2018-07-19

Method for molding pipe body

#22
20180179943
2018-06-28

Exhaust mechanism for vehicle

#23
20180149067
2018-05-31

Exhaust system and method of using

#24
20180135510
2018-05-17

Exhaust gas pressure regulator for a combustion engine

#25
20170370270
2017-12-28

Water ingress preventing structure for tailpipe

#26
20170335738
2017-11-23

Dual catalytic converter exhaust-gas aftertreatment arrangement

#27
20170303473
2017-10-26

Hedge trimmer

#28
20170292421
2017-10-12

Venturi exhaust gas cooler

#29
20170276101
2017-09-28

System and method for aspirating a pre-cleaner of a work vehicle using a double-walled flow pipe

#30
20170254245
2017-09-07

Mixer for mixing exhaust gas

#31
20170234201
2017-08-17

Urea mixer

#32
20170226915
2017-08-10

Catalyst thermal regeneration by exhaust gas

#33
20170218829
2017-08-03

Exhaust manifold for a multicylinder internal combustion engine

#34
20170058736
2017-03-02

Drive device for a motor vehicle and method of operating such a drive device

#35
20170044943
2017-02-16

Muffler for automobile

#36
20160363023
2016-12-15

Method and system for vacuum control

#37
20160361694
2016-12-15

Exhaust treatment device

#38
20160341084
2016-11-24

Engine system with turbulence assisted damping of low frequency sound

#39
20160281579
2016-09-29

Valvular-conduit manifold

#40
20160160734
2016-06-09

Gas leakage prevention cover and exhaust manifold having the same

#41
20160160718
2016-06-09

Triple baffled muffler

#42
20160017748
2016-01-21

Gas turbine engine exhaust drain

#43
20160010524
2016-01-14

Muffler for automobile

#44
20150377104
2015-12-31

Exhaust gas line section for supplying liquid additive

#45
20150322838
2015-11-12

Exhaust gas processing system independent to engine controls

#46
20150060192
2015-03-05

Exhaust system having a system for removing condensate

#47
20150020509
2015-01-22

METHOD AND SYSTEM FOR MAXIMIZING FUEL EFFICIENCY OF AN INTERNAL COMBUSTION ENGINE

#48
20140331658
2014-11-13

Exhaust system for an off-road vehicle

#49
20140250874
2014-09-11

Exhaust device for multicylinder engine

#50
20140196699
2014-07-17

Method and system for vacuum control

#51
20140182961
2014-07-03

Vehicle having an auxiliary exhaust pipe

#52
20140182718
2014-07-03

Exhaust stack pipe cover

#53
20140054101
2014-02-27

Muffler assembly with siphon tube

#54
20130327417
2013-12-12

SELF ALIGNING VENTURI PIPE ASSEMBLY

#55
20130298882
2013-11-14

EGR with Temperature Controlled Venturi Flow Meter

#56
20130247545
2013-09-26

Exhaust aftertreatment system for internal combustion engine

#57
20130205759
2013-08-15

Exhaust assembly

#58
20130186077
2013-07-25

Work vehicle having exhaust apparatus

#59
20130161112
2013-06-27

MODULAR EXHAUST CARRIER

#60
20130047586
2013-02-28

Exhaust catalyst pre-heating system and method

#61
20120318602
2012-12-20

Exhaust System for Machine

#62
20120305330
2012-12-06

Muffler for internal combustion engine

#63
20120210703
2012-08-23

Purifying system for combustive air

#64
20120204544
2012-08-16

Hydrocarbon retaining and purging system

#65
20120152399
2012-06-21

F.U.N tunnel(s)

#66
20120124983
2012-05-24

EXHAUST SYSTEM HAVING REDUCTANT NOZZLE FLOW DIVERTER

#67
20120124982
2012-05-24

Inlet for exhaust treatment device

#68
20120124980
2012-05-24

Combined intake aspirator venturi tube and water trap in vertical exhaust outlet stack

#69
20120102919
2012-05-03

Method of mixing exhaust gas exiting an exhaust stack outlet with cooling air exiting a cooling package outlet including a regeneration control algorithm and machine using same

#70
20120102918
2012-05-03

Method of mixing exhaust gas exiting an exhaust stack outlet with cooling air exiting a cooling package outlet and machine using same

#71
20120023914
2012-02-02

Exhaust purification apparatus

#72
20110315130
2011-12-29

Arrangement for cooling of recirculating exhaust gases of a combustion engine

#73
20110296820
2011-12-08

ENGINE EXHAUST GAS TREATMENT DEVICE INCLUDING ELECTRICALLY ACTUATED HYDROCARBON ADSORBER BYPASS VALVE

#74
20110274590
2011-11-10

Inverted Exhaust Gas Treatment Injector

#75
20110252765
2011-10-20

EXHAUST THROTTLE VALVE SYSTEM AND METHOD FOR DIESEL PARTICULATE FILTER REGENERATION

#76
20110239637
2011-10-06

Device for cooling an exhaust gas stream

#77
20110239636
2011-10-06

Device For Cooling An Exhaust Gas Stream Emerging From A Soot Particle Filter

#78
20110215272
2011-09-08

Exhaust valve structure

#79
20110166417
2011-07-07

METHOD AND DEVICE FOR REPAIR OF DEGENERATIVE CARTILAGE

#80
20110088375
2011-04-21

Exhaust purification apparatus for internal combustion engine

#81
20110072807
2011-03-31

Combined exhaust gas aftertreatment/air cleaner dust and ejector unit

#82
20110047997
2011-03-03

Exhaust Venturi apparatus, system, and method

#83
20110023473
2011-02-03

Exhaust gas diffuser

#84
20100223921
2010-09-09

Hydrocarbon retaining and purging system

#85
20100192557
2010-08-05

Multi-cylinder internal combustion engine, vehicle, marine vessel, and exhausting method for multi-cylinder internal combustion engine

#86
20100192556
2010-08-05

Internal combustion engine, vehicle, marine vessel, and secondary air supply method for internal combustion engine

#87
20100192553
2010-08-05

Internal combustion engine, vehicle, marine vessel, and exhaust gas cleaning method for internal combustion engine

#88
20100186395
2010-07-29

Apparatus for cooling overheated gas in engine room

#89
20100180583
2010-07-22

Internal combustion engine, vehicle, marine vessel, and exhausting method for internal combustion engine

#90
20100170225
2010-07-08

Exhaust treatment system having a reductant supply system

#91
20100146956
2010-06-17

AUTOMOTIVE EXHAUST SYSTEM

#92
20100126155
2010-05-27

Apparatus and method for cooling an exhaust gas

#93
20100107616
2010-05-06

Exhaust gas aspirator

#94
20100083643
2010-04-08

Exhaust gas purification apparatus for internal combustion engine

#95
20100005791
2010-01-14

Nozzle diffuser mixer

#96
20100003873
2010-01-07

Outboard motor

#97
20100000205
2010-01-07

Apparatus and method for cooling an exhaust gas

#98
20100000204
2010-01-07

Passive secondary air delivery system for two bed catalyst system

#99
20100000201
2010-01-07

Exhaust manifold

#100
20090313982
2009-12-24

Exhaust system for motorcycle

#101
20090308686
2009-12-17

Venturi muffler

#102
20090293836
2009-12-03

Engine exhaust cooler and air pre-cleaner aspirator

#103
20090183503
2009-07-23

EXHAUST APPARATUS

#104
20090165447
2009-07-02

Exhaust purification device for engine

#105
20090120066
2009-05-14

Cooling device for high temperature exhaust

#106
20090102202
2009-04-23

System and method for converting wind into mechanical energy

#107
20090102201
2009-04-23

SYSTEM AND METHOD FOR CONVERTING WIND INTO MECHANICAL ENERGY

#108
20090100827
2009-04-23

EXHAUST GAS PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE

#109
20090084096
2009-04-02

Cooling apparatus for exhaust gas temperature control devices

#110
20090084083
2009-04-02

Exhaust system having outlet-located moisture entrainment device

#111
20090077956
2009-03-26

Flexible Exhaust Pipe Coupling

#112
20090071136
2009-03-19

Exhaust diffuser for an internal combustion engine

#113
20090064671
2009-03-12

Environment-conservative fuel economizer

#114
20090057056
2009-03-05

Vehicular exhaust resonator with cooling feature

#115
20090013673
2009-01-15

MUFFLER FOR SMALL ENGINE

#116
20080308347
2008-12-18

Vehicular exhaust system

#117
20080295495
2008-12-04

Exhaust gas system for diesel vehicles with an SCR catalytic converter

#118
20080245604
2008-10-09

Passive secondary air muffler

#119
20080196970
2008-08-21

Exhaust system for combustion engine

#120
20080110160
2008-05-15

Catalyst chamber

#121
20080087006
2008-04-17

TAILPIPE EXHAUST GAS MIXER AND METHOD

#122
20080006026
2008-01-10

Vehicle exhaust systems

#123
20070289810
2007-12-20

Carbon deposition eliminator for vehicle exhaust pipe

#124
20070289294
2007-12-20

Exhaust gas aftertreatment device for an internal combustion engine

#125
20070261387
2007-11-15

MOTORCYCLE EXHAUST ENHANCEMENT DEVICE

#126
20070227120
2007-10-04

System Containing Oxygen Enriched Diesel Particulate Filter and Method Thereof

#127
20070119433
2007-05-31

Device for exhaust gas purification for spark-ignited engines

#128
20070095056
2007-05-03

Exhaust extractor manifold improvements

#129
20070056264
2007-03-15

Method of dispensing fuel into transient flow of an exhaust system

#130
20070051557
2007-03-08

Automobile exhaust pipe assembly

#131
20060059899
2006-03-23

Apparatus and method for filtering particulate and NOx emissions

#132
20050223703
2005-10-13

Muffler with catalytic converter arrangement; and method

#133
20050205355
2005-09-22

Tailpipe of automotive vehicle

#134
20050115763
2005-06-02

Motorcycle exhaust enhancers

#135
20050115230
2005-06-02

Auxiliary airflow booster of engine

#136
20050103003
2005-05-19

Exhaust gas muffler

#137
20050091976
2005-05-05

Exhaust pressure restriction device with bypass passageway

#138
18069748
2023-11-28

Self-cleaning prime mover exhaust system and method

#139
15848425
2019-01-08

Double layered, bent exhaust pipe

#140
14702988
2016-07-26

System and method for detecting particulate filter leakage