F02M35/1244 - CPC Classification Index

ClassID:

141033 ⎘

F02M35/1244 - 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 using interference; Masking or reflecting sound

Sub-classes:

F02M35/125 » {by using active elements, e.g. speakers} 16

Recent Application in this class:

20180258891

Silencing device

20150159528

Noise attenuation unit for engine systems

20140198919

Noise control of thermal components in a hybrid electric vehicle

20140141665

Outboard motor

20130277144

Noise attenuator and vehicle air intake duct provided therewith

20120024623

Noise attenuator and vehicle air intake duct provided therewith

20090242323

Air duct as tuning mechanism and engine cover

20090241888

Air induction housing having a perforated wall and interfacing sound attenuation chamber

20080210188

Air induction housing having a perforated sound attenuation wall

20080184953

Induction system for an internal combustion engine

20080017440

Noise reduction apparatus

20080011541

Internal combustion engine

20070029134

Dual-neck plane wave resonator

20060081214

Intake pipe

20050284692

Silencer for air induction system and high flow articulated coupling

20050016792

Noise suppressor apparatus for a gas duct