F01N1/16 - CPC Classification Index

ClassID:

137764 ⎘

F01N1/16 - CPC Classification

Classification description:

Silencing apparatus characterised by method of silencing by using movable parts

Sub-classes:

F01N1/161 » {for adjusting resonance or dead chambers or passages to resonance or dead chambers} 15
F01N1/165 » {for adjusting flow area} 127
F01N1/166 » {for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe } 150
F01N1/168 » {for controlling or modifying silencing characteristics only} 54
F01N1/18 » having rotary movement 48
F01N1/20 » having oscillating or vibrating movement 5
F01N1/22 » the parts being resilient walls 8

Recent Application in this class:

20230280744

2023-09-07

Remote controlled engine revving

20220186642

2022-06-16

EXHAUST PIPE

20220137616

2022-05-05

Remote controlled engine revving

20210071555

2021-03-11

Methods and systems for an exhaust tuning valve

20200185745

2020-06-11

Apparatus for regulating pressure of exhaust gas of fuel cell system

20200116057

2020-04-16

Exhaust sound control system for vehicles

20190284984

2019-09-19

Exhaust device equipped with spark arrester

20190203619

2019-07-04

Exhaust system having tunable exhaust sound

20190120102

2019-04-25

Muffler valve device for vehicle

#10

20180142589

2018-05-24

Aerodynamically acting final silencer for a motor vehicle

#11

20170234180

2017-08-17

Vehicle noise suppression method

#12

20170107876

2017-04-20

Exhaust flow valve with revrumble feature

#13

20170074407

2017-03-16

Valve unit including a mechanical coupler

#14

20160053658

2016-02-25

Exhaust system for an internal combustion engine and method for operating the exhaust system

#15

20150247433

2015-09-03

IC power plant and method of operation

#16

20150204470

2015-07-23

Flexible tube for exhaust pipe of automobile

#17

20150184564

2015-07-02

Exhaust system passive noise cancellation assembly and method

#18

20150040547

2015-02-12

Mirrored Two-Stage Mixer

#19

20130299004

2013-11-14

Adaptive valve spring retainer

#20

20130232961

2013-09-12

Adaptive valve spring retainer with vibration damping

#21

20120260626

2012-10-18

IC Power Plant and Method of Operation

#22

20120210701

2012-08-23

Exhaust-gas muffler

#23

20120045349

2012-02-23

Pressure pulsation dampener

#24

20120042641

2012-02-23

Method and system for homogenizing exhaust from an engine

#25

20110225953

2011-09-22

Exhaust chamber in motorcycle exhaust system

#26

20110079463

2011-04-07

Variable resonation chamber valve

#27

20100307143

2010-12-09

IC power plant, and method of operation

#28

20100126799

2010-05-27

Muffler and engine exhaust apparatus

#29

20100043398

2010-02-25

Dual exhaust system with independent valve control

#30

20090229255

2009-09-17

Method for operating an internal combustion engine and apparatus for the implementation of the method

#31

20090145118

2009-06-11

Exhaust component of gas exhaust line

#32

20080314679

2008-12-25

Variable Sound Muffler System

#33

20080121458

2008-05-29

Harmonic tone exhaust extension

#34

20080110155

2008-05-15

Exhauster for motorcycle and motorcycle including exhauster

#35

20080078613

2008-04-03

Exhaust pipe structure improvement

#36

20050121254

2005-06-09

Device for establishing noise in a motor vehicle

#37

16029807

2019-07-23

Exhaust valve and active noise control for compact exhaust system

#38

14100611

2016-03-22

Automated system for pressure pulsation dampening