F01N1/086 - CPC Classification Index

ClassID:

137756 ⎘

F01N1/086 - CPC Classification

Classification description:

Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling having means to impart whirling motion to the gases

Sub-classes:

F01N1/087 » {using tangential inlets into a circular chamber} 12
F01N1/088 » {using vanes arranged on gas flow path or gas flow tubes with tangentially directed apertures} 25

Recent Application in this class:

20240183305

2024-06-06

EXHAUST-GAS TREATMENT ARRANGEMENT

20240077008

2024-03-07

AIR-TRANSPARENT SELECTIVE SOUND SILENCER USING ULTRA-OPEN METAMATERIAL

20230067947

2023-03-02

Silencer

20220099006

2022-03-31

Sound attenuator as well as elements and a method of production thereof

20210087957

2021-03-25

Air-transparent selective sound silencer using ultra-open metamaterial

20200043456

2020-02-06

Air-transparent selective sound silencer using ultra-open metamaterial

20190186332

2019-06-20

Vorticity based noise abatement

20190128158

2019-05-02

RAMJET GENERATOR FOR INTAKE/EXHAUST PIPE

20180066563

2018-03-08

VORTEX FLOW APPARATUS

#10

20170152778

2017-06-01

Reductant mixing system for an exhaust gas after-treatment device

#11

20160348557

2016-12-01

Mixer assembly for exhaust aftertreatment system

#12

20160252204

2016-09-01

Compact modular low resistance broadband acoustic silencer

#13

20150330422

2015-11-19

Vortex flow apparatus

#14

20150330283

2015-11-19

Tailor to fit muffler

#15

20150101311

2015-04-16

Exhaust mixer, emissions cleaning module and method

#16

20150086433

2015-03-26

Emissions cleaning module and associated electronics support unit

#17

20150075122

2015-03-19

Emissions cleaning module

#18

20150071827

2015-03-12

Emissions cleaning module for an engine

#19

20150064072

2015-03-05

Emissions cleaning module

#20

20150053501

2015-02-26

Tailor to fit muffler

#21

20140338308

2014-11-20

Exhaust system having a flow rotation element and method for operation of an exhaust system

#22

20140238006

2014-08-28

Exhaust gas heat exchanger

#23

20140102300

2014-04-17

Low pressure drop, high efficiency spark or particulate arresting devices and methods of use

#24

20130277145

2013-10-24

Muffler and engine system

#25

20120305330

2012-12-06

Muffler for internal combustion engine

#26

20120103719

2012-05-03

Exhaust filter

#27

20120042641

2012-02-23

Method and system for homogenizing exhaust from an engine

#28

20110308236

2011-12-22

Muffler and engine system

#29

20110185710

2011-08-04

EXHAUST GAS PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINE, AND SWIRL GENERATING DEVICE

#30

20090308686

2009-12-17

Venturi muffler

#31

20090114477

2009-05-07

Exhaust system for a motorcycle, and motorcycle incorporating same

#32

20090050404

2009-02-26

Sound dampening flow channel device

#33

20090045006

2009-02-19

Noise Eliminator for Fuel Cell

#34

20090031717

2009-02-05

Exhaust flow distribution device

#35

20080023265

2008-01-31

Combination Silencer

#36

20060260867

2006-11-23

Silencer containing one or more porous bodies

#37

20060070375

2006-04-06

Exhaust flow distribution device

#38

20050269152

2005-12-08

Detatchable muffler apparatus for pneumatic tools

#39

20050205353

2005-09-22

Automobile muffler

#40

20050133301

2005-06-23

Muffler for internal combustion engine

#41

20050076668

2005-04-14

Noise attenuating device for a heating-ventilation-cooling system of a motor vehicle

#42

20050029039

2005-02-10

Exhaust gas muffler

#43

20050023078

2005-02-03

Tuned exhaust system for small engines