ClassID:

137758

F01N1/088 - 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 using vanes arranged on gas flow path or gas flow tubes with tangentially directed apertures

Recent Application in this class:
#1
20250327414
2025-10-23

EXHAUST MIXER ASSEMBLY

#2
20250237160
2025-07-24

MIXER FOR EXHAUST AFTERTREATMENT SYSTEM

#3
20250122820
2025-04-17

EXHAUST MIXER ASSEMBLY

#4
20240077008
2024-03-07

AIR-TRANSPARENT SELECTIVE SOUND SILENCER USING ULTRA-OPEN METAMATERIAL

#5
20230122951
2023-04-20

Exhaust treatment system for work vehicles and related flow mixers

#6
20220065145
2022-03-03

Panel assembly and aftertreatment assembly including panel assemblies

#7
20210404359
2021-12-30

System for a combined spark arrestor and muffler assembly

#8
20210213401
2021-07-15

Dosing and mixing arrangement for use in exhaust aftertreatment

#9
20210087957
2021-03-25

Air-transparent selective sound silencer using ultra-open metamaterial

#10
20200043456
2020-02-06

Air-transparent selective sound silencer using ultra-open metamaterial

#11
20190351379
2019-11-21

Dosing and mixing arrangement for use in exhaust aftertreatment

#12
20190331016
2019-10-31

Exhaust system for a work vehicle

#13
20170282135
2017-10-05

Dosing and mixing arrangement for use in exhaust aftertreatment

#14
20150377101
2015-12-31

Method of and apparatus for exhausting internal combustion engines

#15
20150273411
2015-10-01

Doser and mixer for a vehicle exhaust system

#16
20150027566
2015-01-29

Valve device for exhaust gas flow path

#17
20130167506
2013-07-04

Method of and apparatus for exhausting internal combustion engines

#18
20110180347
2011-07-28

Spin muffler

#19
20100255738
2010-10-07

Marine water drop muffler

#20
20090045007
2009-02-19

Muffler with cyclonic plates

#21
20080148722
2008-06-26

Method of and apparatus for exhausting internal combustion engines

#22
20080023265
2008-01-31

Combination Silencer

#23
20070012511
2007-01-18

Vortex muffler

#24
20060150614
2006-07-13

Ionizing fluid flow enhancer for combustion engines

#25
20060075745
2006-04-13

Gas flow enhancer for combustion engines

#26
20050205355
2005-09-22

Tailpipe of automotive vehicle

#27
20050161282
2005-07-28

Flapper finger valve

#28
20050029039
2005-02-10

Exhaust gas muffler

#29
18828152
2025-07-08

Inlet assembly for aftertreatment system

#30
17363152
2022-02-08

Sound deflecting muffler