Patents-Review.com
ClassID:

137759 ⎘

F01N1/089 - CPC Classification

Classification description:

Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series

Recent Application in this class:
#1
20260092545
2026-04-02

EXHAUST MUFFLER

 #2
20250012208
2025-01-09

MUFFLER AND OUTLET STUB FOR A MUFFLER

 #3
20230399963
2023-12-14

Muffler

 #4
20230071388
2023-03-09

FLOW CONDITIONER FOR SEVERE FLOW DISTURBANCES

 #5
20220372900
2022-11-24

Exhaust apparatus

 #6
20220010716
2022-01-13

System and method for low CO emission engine

 #7
20210231036
2021-07-29

MUFFLER SYSTEM

 #8
20210199034
2021-07-01

Muffler device

 #9
20210115823
2021-04-22

Two-stroke engine exhaust resonator with exhaust gas catalytic converter

 #10
20200353813
2020-11-12

Exhaust gas purification device

 #11
20200271042
2020-08-27

Exhaust structure for saddle riding vehicle

 #12
20200232375
2020-07-23

Muffler with internal gap heat shield

 #13
20200018203
2020-01-16

HELMHOLTZ MUFFLER FOR VEHICLE

 #14
20190383198
2019-12-19

Muffler with easy discharge of condensate

 #15
20190353078
2019-11-21

Exhaust subsystem with fiber pipe and method of forming fiber pipe

 #16
20190264595
2019-08-29

System and method for low CO emission engine

 #17
20190234264
2019-08-01

Exhaust unit

 #18
20190195099
2019-06-27

EXHAUST DEVICE OF ENGINE

 #19
20190170043
2019-06-06

MUFFLER FOR SINGLE-CYLINDER DIESEL ENGINE

 #20
20190120115
2019-04-25

Silencer insert, silencer comprising the same and method for manufacturing a silencer insert

 #21
20190120102
2019-04-25

Muffler valve device for vehicle

 #22
20190093565
2019-03-28

Tunable resonator

 #23
20190093528
2019-03-28

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

 #24
20190085744
2019-03-21

Exhaust device for internal combustion engine

 #25
20190078476
2019-03-14

Exhaust device for internal combustion engine

 #26
20190063282
2019-02-28

Air exhausting device

 #27
20190063281
2019-02-28

Air exhausting device

 #28
20190055866
2019-02-21

Exhaust device for internal combustion engine

 #29
20190032530
2019-01-31

Combined exhaust gas silencer

 #30
20180326837
2018-11-15

Valve assembly

 #31
20180274426
2018-09-27

Exhaust device

 #32
20180202335
2018-07-19

Exhaust device of engine

 #33
20180156088
2018-06-07

Exhaust component having a main casing and a partial casing, and method for manufacturing such an exhaust component

 #34
20180080354
2018-03-22

RECIPROCATION ENGINE EXHAUST SCAVENGING SYSTEM

 #35
20180038263
2018-02-08

Assembly for an exhaust system

 #36
20180016956
2018-01-18

Engine and engine-driven working machine

 #37
20170335741
2017-11-23

Muffler for an exhaust system of an internal combustion engine, especially for motor vehicles with hybrid drive

 #38
20170268402
2017-09-21

Exhaust-gas after-treatment device

 #39
20170183994
2017-06-29

Exhaust device structure for rocking vehicle

 #40
20170159531
2017-06-08

Exhaust structure of vehicle

 #41
20170159520
2017-06-08

Muffler and method for manufacturing same

 #42
20170074132
2017-03-16

Exhaust system for internal combustion engine

 #43
20170058732
2017-03-02

Exhaust system having variable exhaust gas paths

 #44
20170009683
2017-01-12

Engine system for working machine configured to contain noise reduction equipment

 #45
20160376952
2016-12-29

EXHAUST RESONATOR FOR A TWO-STROKE ENGINE FOR USE IN A MOTORIZED FLOAT

 #46
20160347168
2016-12-01

Exhaust muffler for transverse installation in a vehicle

 #47
20160312674
2016-10-27

Exhaust system

 #48
20160281557
2016-09-29

Silencer for internal combustion engine

 #49
20160245146
2016-08-25

Exhaust muffler

 #50
20160230627
2016-08-11

Muffler

 #51
20160003116
2016-01-07

Engine-exhaust-system apparatus and package-type engine electric power generator

 #52
20150377113
2015-12-31

Muffler unit and vehicle including the same

 #53
20150354433
2015-12-10

Method for installing inlet pipe and method for supporting inlet pipe

 #54
20150330422
2015-11-19

Vortex flow apparatus

 #55
20150330283
2015-11-19

Tailor to fit muffler

 #56
20150275721
2015-10-01

System and method for tuned exhaust

 #57
20150267586
2015-09-24

Multi-piece muffler housing

 #58
20150219041
2015-08-06

Engine

 #59
20150176448
2015-06-25

Muffler for vehicle

 #60
20150152773
2015-06-04

Exhaust system for motorcycle

 #61
20150068481
2015-03-12

Engine noise attenuation

 #62
20150004015
2015-01-01

Sound absorber for refrigerant compressor

 #63
20140291067
2014-10-02

Exhaust silencing device

 #64
20140284138
2014-09-25

Engine muffler

 #65
20140256245
2014-09-11

Box-type generator driven by engine

 #66
20140251718
2014-09-11

Muffler equipped with catalytic converter

 #67
20140251717
2014-09-11

Muffler equipped with catalytic converter

 #68
20140196980
2014-07-17

Silencing apparatus for a vehicle

 #69
20140116801
2014-05-01

Silencer and a method for producing same

 #70
20140090924
2014-04-03

Exhaust system of saddle-ride type vehicle

 #71
20140060963
2014-03-06

Exhaust system for a motorcycle

 #72
20130319789
2013-12-05

Two-stroke engine comprising a muffler

 #73
20130280109
2013-10-24

Modular discharge silencer for vehicle-mounted compressor

 #74
20130270034
2013-10-17

Silencing apparatus for vehicle

 #75
20130247849
2013-09-26

Shunt pulsation trap for positive displacement (PD) internal combustion engines (ICE)

 #76
20130175114
2013-07-11

Hybrid silencer with gas-liquid separating function in fuel cell system

 #77
20130164643
2013-06-27

Silencer for reducing acoustic noise of fuel cell system

 #78
20130048416
2013-02-28

EXHAUST MUFFLER

 #79
20120273302
2012-11-01

Exhaust apparatus of internal combustion engine

 #80
20120267189
2012-10-25

Muffler

 #81
20120228053
2012-09-13

Silencer for a two-stroke motor of a power tool

 #82
20120227716
2012-09-13

TWO-STROKE MOTOR WITH IMPROVED SILENCER AND ADAPTED MOTOR MANAGEMENT

 #83
20120210704
2012-08-23

Exhaust muffler for general-purpose engine

 #84
20120210701
2012-08-23

Exhaust-gas muffler

 #85
20120085589
2012-04-12

Muffler for vehicle

 #86
20120055736
2012-03-08

Muffler for vehicle

 #87
20110308884
2011-12-22

Sound absorber having helical fixtures

 #88
20110209942
2011-09-01

Exhaust device of internal combustion engine

 #89
20110192677
2011-08-11

Exhaust muffler device

 #90
20110107750
2011-05-12

Exhaust emission control device

 #91
20110048848
2011-03-03

Muffler apparatus for vehicle

 #92
20110005856
2011-01-13

EXHAUST SILENCER

 #93
20100310389
2010-12-09

SYSTEM FOR ATTENUATING PULSATION IN THE GAS DISCHARGE OF A REFRIGERATION COMPRESSOR

 #94
20100307865
2010-12-09

Silencer for internal combustion engine

 #95
20100307134
2010-12-09

Device and method for the reduction of emissions

 #96
20100212990
2010-08-26

Vehicle including silencer

 #97
20100199843
2010-08-12

IMPACT DIESEL PARTICULATE FILTER

 #98
20100192880
2010-08-05

Exhaust pipe structure for saddle-ride type vehicle

 #99
20100170743
2010-07-08

High-performance muffler assembly with multiple modes of operation

 #100
20100140014
2010-06-10

Flow Passage Control Valve for Muffler

 #101
20100126799
2010-05-27

Muffler and engine exhaust apparatus

 #102
20100126159
2010-05-27

Valve for a motor vehicle exhaust silencer, and silencer comprising a valve of this type

 #103
20100059312
2010-03-11

PARTICLE MATTER CATALYST INSERTED MUFFLER

 #104
20100050618
2010-03-04

Exhaust gas after treatment apparatus of a motor vehicle

 #105
20100011752
2010-01-21

Exhaust muffler comprising a catalytic converter

 #106
20100006370
2010-01-14

Sound-attenuating muffler having reduced back pressure

 #107
20100000206
2010-01-07

Intake and exhaust system of internal combustion engine

 #108
20090308687
2009-12-17

Muffler for vehicle

 #109
20090301808
2009-12-10

Muffler structure for vehicle

 #110
20090255519
2009-10-15

Silencer for a motor device

 #111
20090229913
2009-09-17

Dual Mode Exhaust Muffler

 #112
20090229912
2009-09-17

Muffler

 #113
20090114477
2009-05-07

Exhaust system for a motorcycle, and motorcycle incorporating same

 #114
20090038879
2009-02-12

Muffler unit for general-purpose engine

 #115
20090013673
2009-01-15

MUFFLER FOR SMALL ENGINE

 #116
20090000863
2009-01-01

Exhaust pipe

 #117
20080308348
2008-12-18

Exhaust System for Internal Combustion Engines

 #118
20080245606
2008-10-09

Automotive muffler

 #119
20080245605
2008-10-09

METHOD AND APPARATUS FOR CONTROLLING ENGINE EXHAUST SOUND FOR VEHICLES

 #120
20080245604
2008-10-09

Passive secondary air muffler

 #121
20080236941
2008-10-02

Exhaust system for saddle-ride type vehicle

 #122
20080163488
2008-07-10

Method for manufacturing an exhaust element of an exhaust line of a vehicle with a heat engine and exhaust element, namely obtained through implementing said method

 #123
20080121460
2008-05-29

Sheet-metal-type part

 #124
20080093161
2008-04-24

Rear muffler assembly

 #125
20080066446
2008-03-20

Impact diesel particulate filter

 #126
20080053068
2008-03-06

Device & Method for the Reduction of Emissions

 #127
20080035420
2008-02-14

Muffler of internal combustion engine

 #128
20080035418
2008-02-14

Exhaust sound and emission control systems

 #129
20080023265
2008-01-31

Combination Silencer

 #130
20070295002
2007-12-27

Motorcycle

 #131
20070272480
2007-11-29

Exhaust apparatus of an internal combustion engine

 #132
20070227807
2007-10-04

High-performance muffler assembly with multiple modes of operation

 #133
20070107419
2007-05-17

Exhaust system for motorcycle

 #134
20070051556
2007-03-08

Exhaust system with external helmholtz resonator and associated method

 #135
20070012035
2007-01-18

Muffling apparatus having exhaust emission purifying function

 #136
20060288695
2006-12-28

Intake and exhaust system of internal combustion engine

 #137
20060283661
2006-12-21

Silencer

 #138
20060283180
2006-12-21

Exhaust system with catalytic converter and motorcycle using the same

 #139
20060260867
2006-11-23

Silencer containing one or more porous bodies

 #140
20060242952
2006-11-02

Exhaust system for motorcycle

 #141
20060225951
2006-10-12

Muffler with catalytic converter

 #142
20060090957
2006-05-04

Exhaust muffler

 #143
20060086563
2006-04-27

Compressor discharge pulsation dampener

 #144
20060037814
2006-02-23

Exhaust system of internal combustion engine

 #145
20060005794
2006-01-12

Internal combustion engine cylinder and muffler assembly with catalytic converter

 #146
20060000668
2006-01-05

Muffler device

 #147
20050279572
2005-12-22

Arrangement for internal combustion engine

 #148
20050279571
2005-12-22

Exhaust sound and emission control systems

 #149
20050224284
2005-10-13

Engine exhaust muffler with exhaust emission control function

 #150
20050224283
2005-10-13

Internal combustion engine silencer

 #151
20050205352
2005-09-22

Exhaust chamber comprising an envelope defining a gas circulation passage

 #152
20050198946
2005-09-15

Exhaust system assemblies employing wire bushings for thermal compensation

 #153
20050189166
2005-09-01

Motorcycle exhaust system

 #154
20050150716
2005-07-14

Exhaust apparatus for small-sized engine

 #155
20050126850
2005-06-16

Exhaust muffling device

 #156
20050126382
2005-06-16

Silencer

 #157
20050103003
2005-05-19

Exhaust gas muffler

 #158
20050039447
2005-02-24

Structure of engine exhauster

 #159
20050023078
2005-02-03

Tuned exhaust system for small engines

 #160
20050023075
2005-02-03

Reduced noise valve stack connection

 #161
17965449
2024-04-09

Water drop muffler for diesel powered marine generator

 #162
17097515
2022-10-18

Water drop muffler for diesel powered marine generator