F01N2490/00 - CPC Classification Index

ClassID:

138130 ⎘

F01N2490/00 - CPC Classification

Classification description:

Structure, disposition or shape of gas-chambers

Sub-classes:

F01N2490/02 » Two or more expansion chambers in series connected by means of tubes 45
F01N2490/08 » Two or more expansion chambers in series separated by apertured walls only 81
F01N2490/10 » Two or more expansion chambers in parallel 16
F01N2490/12 » Chambers having variable volumes 6
F01N2490/14 » Dead or resonance chambers connected to gas flow tube by relatively short side-tubes 19
F01N2490/15 » Plurality of resonance or dead chambers 44
F01N2490/16 » Chambers with particular shapes, e.g. spherical 40
F01N2490/18 » Dimensional characteristics of gas chambers 34
F01N2490/20 » Chambers being formed inside the exhaust pipe without enlargement of the cross section of the pipe, e.g. resonance chambers 12

Recent Application in this class:

20240287925

2024-08-29

Integrated automotive reformer and catalytic converter and method for reforming fuel

20230304428

2023-09-28

Exhaust Gas Processing Device

20220412241

2022-12-29

Exhaust gas processing device

20220065147

2022-03-03

Exhaust gas processing device

20210317763

2021-10-14

Insert assembly unit for a muffler of an exhaust system of an internal combustion engine

20190093528

2019-03-28

Method and apparatus to enable package space reduction in a vehicle exhaust system

20180347436

2018-12-06

Fluid sensor protection assembly

20180313247

2018-11-01

Exhaust gas aftertreatment system, and internal combustion engine with exhaust gas aftertreatment system

20180258826

2018-09-13

Exhaust device of engine

#10

20180149069

2018-05-31

Exhaust gas treatment device

#11

20180030875

2018-02-01

Engine exhaust structure

#12

20180030874

2018-02-01

Mix box

#13

20170342887

2017-11-30

Selective catalytic reactor (SCR) door systems

#14

20170211439

2017-07-27

Exhaust gas system for an internal combustion engine

#15

20160169078

2016-06-16

Exhaust gas system of a motor vehicle

#16

20160061073

2016-03-03

Exhaust chamber for saddle-riding type vehicle

#17

20150047922

2015-02-19

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

#18

20130022513

2013-01-24

Electric heating type catalyst and a method for manufacturing the same

#19

20120260639

2012-10-18

Exhaust gas cleaning component with deflection surface, method for production thereof and motor vehicle having the component

#20

20120255287

2012-10-11

Exhaust emission control device

#21

20120000181

2012-01-05

Exhaust system having an aftertreatment module

#22

20110070786

2011-03-24

Outboard motor

#23

20110070785

2011-03-24

Outboard motor

#24

20100018191

2010-01-28

Catalytic smog reduction

#25

20090293467

2009-12-03

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

#26

20090266066

2009-10-29

Equal length Y-collector

#27

20090215341

2009-08-27

Outboard motor

#28

20090208275

2009-08-20

STRUCTURE FOR EXHAUST PIPE CONNECTION SECTION OF MUFFLER

#29

20060266580

2006-11-30

Muffler for an exhaust system and manufacturing method for same