Patents-Review.com
ClassID:

141029 ⎘

F02M35/1222 - CPC Classification

Classification description:

Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines; Intake silencers Sound modulation, transmission or amplification; Flow throttling or guiding by using adjustable or movable elements, e.g. valves, membranes, bellows, expanding or shrinking elements

Recent Application in this class:
#1
20210172403
2021-06-10

Detection and control of intake system noise during low pressure exhaust gas recirculation operation

 #2
20210054811
2021-02-25

Engine air cleaner with integrated compressor suppressor

 #3
20190195152
2019-06-27

Control method and control device for internal combustion engine

 #4
20190120187
2019-04-25

Vacuum actuated multi-frequency quarter-wave resonator for an internal combustion engine

 #5
20180135573
2018-05-17

Vacuum actuated multi-frequency quarter-wave resonator for an internal combustion engine

 #6
20180128218
2018-05-10

Air cleaner for internal combustion engine

 #7
20180100472
2018-04-12

Variable air intake apparatus reducing noise

 #8
20170356407
2017-12-14

Intake noise reduction device

 #9
20170175690
2017-06-22

Intake sound reduction device for internal combustion engine

 #10
20160377037
2016-12-29

Variable intake system

 #11
20160281660
2016-09-29

Multi-frequency quarter-wave resonator for an internal combustion engine

 #12
20150361934
2015-12-17

Multi-frequency quarter-wave resonator for an internal combustion engine vehicle

 #13
20150128884
2015-05-14

Method and system for vacuum generation

 #14
20150052859
2015-02-26

Air cleaner for vehicles

 #15
20140338628
2014-11-20

Torque increase resonator

 #16
20140331967
2014-11-13

Variable intake system for vehicle, and apparatus and method for controlling the same

 #17
20140165950
2014-06-19

Active control sound generator

 #18
20130263810
2013-10-10

Multi-mode air induction tuning duct

 #19
20130199487
2013-08-08

Mapped sound generator

 #20
20130152895
2013-06-20

INTAKE APPARATUS FOR INTERNAL COMBUSTION ENGINE

 #21
20130139787
2013-06-06

Variable intake system for vehicle, and apparatus and method for controlling the same

 #22
20130111901
2013-05-09

PULSATION ABSORPTION SYSTEM FOR AN ENGINE

 #23
20110214936
2011-09-08

Anti-noise device for the air intake conduit of a supercharged internal combustion engine

 #24
20100224159
2010-09-09

Engine assembly having variable intake air tuning device and tuning method

 #25
20100193283
2010-08-05

Noise reduction system

 #26
20100170464
2010-07-08

Clean air duct noise silencing

 #27
20100139604
2010-06-10

INLET MECHANISM FOR AN AIR INDUCTION SYSTEM

 #28
20090236171
2009-09-24

Intake air sound generation device

 #29
20090025672
2009-01-29

Intake air noise adjuster

 #30
20090007876
2009-01-08

Air induction system with resonator bypass valve

 #31
20080173271
2008-07-24

Adjustable helmholtz resonator

 #32
20080066999
2008-03-20

Continuously variable tuned resonator

 #33
20080017156
2008-01-24

Air-intake device for internal combustion engine having noise reduction mechanism

 #34
20070295553
2007-12-27

Vehicle intake sound introducing apparatus

 #35
20070163533
2007-07-19

Intake muffler

 #36
20070079784
2007-04-12

Sound increase apparatus

 #37
20070044747
2007-03-01

Air intake sound control structure

 #38
20060283658
2006-12-21

Sound increase apparatus

 #39
20060236973
2006-10-26

ACTIVE INTAKE MUFFLER

 #40
20060231054
2006-10-19

Modular resonator

 #41
20060060419
2006-03-23

Apparatus for transmitting sound in a motor vehicle

 #42
20050252716
2005-11-17

Electronically controlled dual chamber variable resonator

 #43
20050217930
2005-10-06

Systems and methods for controlling acoustical damping

 #44
20050217626
2005-10-06

Resonator

 #45
20050205041
2005-09-22

Air induction system having an environmentally resistant acoustic membrane

 #46
20050194207
2005-09-08

Apparatus and method of sound attenuation in a system employing a VSD and a quarter-wave resonator

 #47
20050189167
2005-09-01

Noise suppression system and method

 #48
20050121254
2005-06-09

Device for establishing noise in a motor vehicle

 #49
20050011699
2005-01-20

Muffler

 #50
18985624
2025-04-15

Intake bypass recirculation structure capable of silencing

 #51
18510309
2025-03-04

Engine intake device for forklifts

 #52
16174319
2019-11-05

Active cold air intake system

 #53
15295590
2018-08-07

Disruptive air flow assembly for a vehicle engine