F01N2470/00 - CPC Classification Index

ClassID:

138114 ⎘

F01N2470/00 - CPC Classification

Classification description:

Structure or shape of gas passages, pipes or tubes

Sub-classes:

F01N2470/02 » Tubes being perforated 261
F01N2470/06 » Tubes being formed by assembly of stamped or otherwise deformed sheet-metal 36
F01N2470/08 » Gas passages being formed between the walls of an outer shell and an inner chamber 87
F01N2470/10 » Tubes having non-circular cross section 66
F01N2470/12 » Tubes being corrugated 45
F01N2470/14 » Plurality of outlet tubes, e.g. in parallel or with different length 116
F01N2470/16 » Plurality of inlet tubes, e.g. discharging into different chambers 78
F01N2470/18 » the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus 278
F01N2470/20 » Dimensional characteristics of tubes, e.g. length, diameter 135
F01N2470/22 » Inlet and outlet tubes being positioned on the same side of the apparatus 53
F01N2470/24 » Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled 234
F01N2470/26 » Tubes being formed by extrusion, drawing or rolling 13
F01N2470/28 » Tubes being formed by moulding or casting x 8
F01N2470/30 » Tubes with restrictions, i.e. venturi or the like, e.g. for sucking air or measuring mass flow 137

Recent Application in this class:

20240376840

2024-11-14

EXHAUST GAS SYSTEM UNIT

20240309791

2024-09-19

WATER DRAINAGE ASSEMBLIES FOR AFTERTREATMENT SYSTEMS

20240191643

2024-06-13

Exhaust gas processing device

20230287825

2023-09-14

Vehicle exhaust system

20230141549

2023-05-11

Water drainage assemblies for aftertreatment systems

20230103188

2023-03-30

Exhaust structure

20220010716

2022-01-13

System and method for low CO emission engine

20210170861

2021-06-10

Vehicle

20210017893

2021-01-21

Water drainage assemblies for aftertreatment systems

#10

20200408124

2020-12-31

Exhaust component with a helical heater

#11

20200240301

2020-07-30

Systems and methods for regulating performance characteristics of an exhaust system with a tri-modal valve

#12

20200102877

2020-04-02

Pulse exhaust pipe and diesel engine installed with pulse exhaust pipe

#13

20190264595

2019-08-29

System and method for low CO emission engine

#14

20190249588

2019-08-15

Muffler unit

#15

20190226428

2019-07-25

Multi-cylinder engine

#16

20190186322

2019-06-20

Exhaust conduit with a flow conditioning portion

#17

20190170034

2019-06-06

COMPACT DEVICE FOR PURIFICATION AND RECIRCULATION OF EXHAUST GAS

#18

20190063298

2019-02-28

AFTERTREATMENT SYSTEM

#19

20190063281

2019-02-28

Air exhausting device

#20

20180187584

2018-07-05

Exhaust system

#21

20180163595

2018-06-14

Injector deposit dissolution system and method

#22

20180156094

2018-06-07

Exhaust aftertreatment system, apparatus, and method

#23

20180149112

2018-05-31

HEAT EXCHANGER FOR A MOTOR VEHICLE

#24

20180149111

2018-05-31

HEAT EXCHANGER FOR A MOTOR VEHICLE

#25

20180149069

2018-05-31

Exhaust gas treatment device

#26

20180073412

2018-03-15

Combined heat exchanger and exhaust silencer

#27

20180058294

2018-03-01

Exhaust gas mixer

#28

20170363023

2017-12-21

Straddle-type vehicle

#29

20170159520

2017-06-08

Muffler and method for manufacturing same

#30

20170130631

2017-05-11

Vehicular exhaust device

#31

20170122161

2017-05-04

Engine exhaust apparatus

#32

20170074134

2017-03-16

Connection pipe for connecting an active muffler to an exhaust system for an internal combustion engine

#33

20160333828

2016-11-17

Catalytic converter

#34

20160312677

2016-10-27

Assembly and method for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine

#35

20160311314

2016-10-27

Working vehicle

#36

20160222864

2016-08-04

Assembly and method for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine

#37

20160222854

2016-08-04

Assembly and method for introducing a reducing agent into the exhaust pipe of an exhaust system of an internal combustion engine

#38

20160032808

2016-02-04

Injection device and corresponding method for manufacturing same

#39

20160017787

2016-01-21

Exhaust pipe

#40

20150238901

2015-08-27

Exhaust gas cleaning device

#41

20150204280

2015-07-23

Gas flow unit, a gas treatment device and a combustion engine provided therewith

#42

20150135687

2015-05-21

Exhaust device of motorcycle

#43

20140331658

2014-11-13

Exhaust system for an off-road vehicle

#44

20140326534

2014-11-06

NATURAL VACUUM LEAK DETECTION NOISE ATTENUATION DEVICE

#45

20140231158

2014-08-21

Exhaust pipe structure of hybrid vehicle

#46

20140182718

2014-07-03

Exhaust stack pipe cover

#47

20140144539

2014-05-29

Pipe cover, pipe structure and vehicle

#48

20140000574

2014-01-02

Muffler and engine-driven work machine

#49

20130333357

2013-12-19

Exhaust gas purifying device

#50

20130276754

2013-10-24

Spark-ignition internal combustion engine having wall portion separating at least the two cylinders

#51

20130047841

2013-02-28

DEVICE FOR DIAGNOSING A PARTICLE FILTER

#52

20130011801

2013-01-10

Burner device

#53

20120255287

2012-10-11

Exhaust emission control device

#54

20120210687

2012-08-23

Filter for internal combustion engines

#55

20120103719

2012-05-03

Exhaust filter

#56

20120079810

2012-04-05

Exhaust assembly for construction machine

#57

20110073405

2011-03-31

Exhaust component

#58

20110023471

2011-02-03

Exhaust gas treatment device

#59

20100257850

2010-10-14

Exhaust emission control device

#60

20100213000

2010-08-26

Vehicular muffler and motorcycle incorporating same

#61

20100212292

2010-08-26

Assembly and Method for Introducing a Reducing Agent into the Exhaust Pipe of an Exhaust System of an Internal Combustion Engine

#62

20100101420

2010-04-29

Exhaust gas purifying device

#63

20100018188

2010-01-28

Exhaust emission control device

#64

20090313979

2009-12-24

Exhaust emission control device

#65

20090293467

2009-12-03

Diesel engine exhaust treatment system with drive shaft accommodating housing and method

#66

20090158720

2009-06-25

Sliding seat and exhaust gas treatment facility

#67

20090025664

2009-01-29

INTERNAL COMBUSTION ENGINE

#68

20080078613

2008-04-03

Exhaust pipe structure improvement

#69

20070151233

2007-07-05

Substantially fibrous refractory device for cleaning a fluid

#70

20070137189

2007-06-21

Vehicle exhaust apparatus and motorcycle equipped therewith

#71

20070012035

2007-01-18

Muffling apparatus having exhaust emission purifying function

#72

20070000240

2007-01-04

Exhaust emission purifying apparatus for engine

#73

20060266580

2006-11-30

Muffler for an exhaust system and manufacturing method for same

#74

20060266026

2006-11-30

Exhaust system, and engine device and vehicle with the same

#75

20060228269

2006-10-12

Ozone protective system: vehicle and mechanical engine carbon and exhaustive gaseous filtration system

#76

20060219357

2006-10-05

Pipe manufacturing method and inner pipe of double pipe

#77

20060131870

2006-06-22

Exhaust pulse control unit and method

#78

20050241266

2005-11-03

Honeycomb structure and die for forming honeycomb structure